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US Ecology, Inc.

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FY2020 Annual Report · US Ecology, Inc.
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Table of Contents

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-K

☒   ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 2020
OR
☐   TRANSITION REPORT PURSUANT TO Section 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from to .

Commission file number: 001-39120

US ECOLOGY, INC.
(Exact name of registrant as specified in its charter)

Delaware 

(State or other jurisdiction of 
incorporation or organization)
101 S. Capitol Blvd., Suite 1000 

Boise, Idaho 
(Address of principal executive offices)

84-2421185 
(I.R.S. Employer 
Identification No.)

83702 
(Zip Code)

Registrant’s telephone number, including area code: (208) 331-8400

Securities registered pursuant to Section 12(b) of the Act:

Title of each class
Common Stock, par value $0.01 per share
Warrants to Purchase Common Stock

Trading Symbol(s)
ECOL
ECOLW

Name of each exchange on which registered
Nasdaq Global Select Market
Nasdaq Capital Market

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ⌧  No ◻

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ◻   No ⌧

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that
the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ⌧  No ◻

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding
12 months (or for such shorter period that the registrant was required to submit such files). Yes ⌧   No ◻

Indicate  by  check  mark  whether  the  registrant  is  a  large  accelerated  filer,  an  accelerated  filer,  a  non-accelerated  filer,  smaller  reporting  company,  or  an  emerging  growth  company.  See  the  definitions  of  “large
accelerated filer,” “accelerated filer,”  “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large Accelerated Filer ⌧

Accelerated Filer ◻

Non-Accelerated Filer ◻

Smaller Reporting Company ☐

Emerging Growth Company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant
to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the
Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐  No ⌧

The aggregate market value of the registrant’s voting stock held by non-affiliates on June 30, 2020 was approximately $1.06 billion based on the closing price of $33.88 per share as reported on the Nasdaq Global
Select Market System.

At February 22, 2021, there were 31,499,536 shares of the registrant’s Common Stock outstanding.

Documents Incorporated by Reference

Listed hereunder are the documents, any portions of which are incorporated by reference and the Parts of this Form 10-K into which such portions are incorporated:

1. The registrant’s definitive proxy statement for use in connection with the Annual Meeting of Stockholders to be held on or about May 25, 2021 to be filed within 120 days after the registrant’s fiscal year ended December 31,

2020, portions of which are incorporated by reference into Part III of this Form 10-K.

Table of Contents

Item
PART I

US ECOLOGY, INC.

FORM 10-K

TABLE OF CONTENTS

Cautionary Statement
Business
Risk Factors

Properties
Legal Proceedings
Mine Safety Disclosures

1.
1A.
1B. Unresolved Staff Comments
2.
3.
4.
PART II
5.
6.
7.
7A. Quantitative and Qualitative Disclosures About Market Risk
8.
9.
9A.
9B. Other Information
PART III
10.
11.
12.
13.
14.
PART IV
15.
16.
SIGNATURES

Exhibits, Financial Statement Schedules
Form 10-K Summary

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
Selected Financial Data
Management’s Discussion and Analysis of Financial Condition and Results of Operations

Financial Statements and Supplementary Data
Changes in and Disagreements With Accountants on Accounting and Financial Disclosure
Controls and Procedures

Directors, Executive Officers and Corporate Governance
Executive Compensation
Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
Certain Relationships and Related Transactions, and Director Independence
Principal Accounting Fees and Services

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PART I

Cautionary Statement for Purposes of Safe Harbor Provisions of the Private Securities Litigation Reform Act of 1995

This  annual  report  on  Form  10-K  contains  forward-looking  statements  within  the  meaning  of  the  federal  securities  laws.
Statements  that  are  not  historical  facts,  including  statements  about  the  beliefs  and  expectations  of  US  Ecology,  Inc.  (the
“Company,”  “US  Ecology,”  “we”  or  “us),  are  forward-looking  statements.  Forward-looking  statements  include  statements
preceded  by,  followed  by  or  that  include  the  words  “may,”  “could,”  “would,”  “should,”  “believe,”  “expect,”  “anticipate,”
“plan,” “estimate,” “target,” “project,” “intend” and similar expressions. These statements include, among others, statements
regarding our financial and operating results, strategic objectives and means to achieve those objectives, the amount and timing
of  capital  expenditures,  repurchases  of  its  stock  under  approved  stock  repurchase  plans,  the  amount  and  timing  of  interest
expense, the likelihood of our success in expanding our business, financing plans, budgets, working capital needs and sources of
liquidity.

Forward  looking  statements  are  only  predictions  and  are  not  guarantees  of  performance.  These  statements  are  based  on
management’s  beliefs  and  assumptions,  which  in  turn  are  based  on  currently  available  information.  Important  assumptions
include,  among  others,  those  regarding  demand  for  the  Company’s  services,  expansion  of  service  offerings  geographically  or
through new or expanded service lines, the timing and cost of planned capital expenditures, competitive conditions and general
economic conditions. These assumptions could prove inaccurate. Forward looking statements also involve known and unknown
risks  and  uncertainties,  which  could  cause  actual  results  to  differ  materially  from  those  contained  in  any  forward  looking
statement. Many of these factors are beyond our ability to control or predict. Such factors may include developments related to
the  COVID-19  pandemic,  including,  but  not  limited  to,  the  duration  and  severity  of  additional  measures  taken  by  government
authorities  and  the  private  sector  to  limit  the  spread  of  COVID-19,  the  integration  of  the  operations  of  NRC  Group  Holdings
Corp. (“NRC”), the loss or failure to renew significant contracts, competition in our markets, adverse economic conditions, our
compliance with applicable laws and regulations, potential liability in connection with providing oil spill response services and
waste disposal services, the effect of existing or future laws and regulations related to greenhouse gases and climate change, the
effect  of  our  failure  to  comply  with  U.S.  or  foreign  anti-bribery  laws,  the  effect  of  compliance  with  laws  and  regulations,  an
accident  at  one  of  our  facilities,  incidents  arising  out  of  the  handling  of  dangerous  substances,  our  failure  to  maintain  an
acceptable safety record, our ability to perform under required contracts, limitations on our available cash flow as a result of
our indebtedness, liabilities arising from our participation in multi-employer pension plans, the effect of changes in the method of
determining the London Interbank Offered Rate (“LIBOR”) or the replacement thereto, risks associated with our international
operations, the impact of changes to U.S. tariff and import and export regulations, fluctuations in commodity markets related to
our  business,  a  change  in  NRC’s  classification  as  an  Oil  Spill  Removal  Organization,  cyber  security  threats,  unanticipated
changes  in  tax  rules  and  regulations,  the  loss  of  key  personnel,  a  deterioration  in  our  labor  relations  or  labor  disputes,  our
reliance  on  third-party  contractors  to  provide  emergency  response  services,  our  access  to  insurance,  surety  bonds  and  other
financial assurances, our litigation risk not covered by insurance, the replacement of non-recurring event projects, our ability to
permit  and  contract  for  timely  construction  of  new  or  expanded  disposal  space,  renewals  of  our  operating  permits  or  lease
agreements  with  regulatory  bodies,  our  access  to  cost-effective  transportation  services,  lawsuits,  our  implementation  of  new
technologies, fluctuations in foreign currency markets and foreign affairs, our integration of acquired businesses, our ability to
pay  dividends  or  repurchase  stock,  anti-takeover  regulations,  stock  market  volatility,  the  failure  of  the  warrants  to  be  in  the
money or their expiration worthless and risks related to our compliance with maritime regulations (including the Jones Act).

Except  as  required  by  applicable  law,  including  the  securities  laws  of  the  United  States  and  the  rules  and  regulations  of  the
Securities and Exchange Commission (the “SEC”), we are under no obligation to publicly update or revise any forward-looking
statements,  whether  as  a  result  of  new  information,  future  events  or  otherwise.  You  should  not  place  undue  reliance  on  our
forward-looking statements. Although we believe that the expectations reflected in forward-looking statements are reasonable,
we  cannot  guarantee  future  results  or  performance.  Before  you  invest  in  our  common  stock,  you  should  be  aware  that  the
occurrence of the events described in the “Risk Factors” section in this report could harm our business, prospects, operating
results and financial condition.

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Investors should also be aware that while we do, from time to time, communicate with securities analysts, it is against our policy
to disclose to them any material non-public information or other confidential commercial information. Accordingly, stockholders
should not assume that we agree with any statement or report issued by any analyst irrespective of the content of the statement or
report. Furthermore, we have a policy against issuing or confirming financial forecasts or projections issued by others. Thus, to
the  extent  that  reports  issued  by  securities  analysts  contain  any  projections,  forecasts  or  opinions,  such  reports  are  not  the
responsibility of US Ecology, Inc.

ITEM 1. BUSINESS

General

The table below contains definitions that are used throughout this Annual Report on Form 10-K.

Term
US Ecology, the Company, “we,” “our,” “us”
AEA
CEPA
CERCLA or “Superfund”

CWA
LARM

LLRW

NORM/NARM

NPDES
OPA-90
OSRO
PCBs
Predecessor US Ecology

QEQA
RCRA
RRC
TSCA
TSDF
USACE
USCG
USEPA
USNRC
WUTC

Meaning

US Ecology, Inc., and its subsidiaries
Atomic Energy Act of 1954, as amended
Canadian Environmental Protection Act (1999)
Comprehensive Environmental Response, Compensation and
Liability Act of 1980
Clean Water Act of 1977
Low-activity radioactive material exempt from federal Atomic
Energy Act regulation for disposal
Low-level radioactive waste regulated under the federal
Atomic Energy Act for disposal
Naturally occurring and accelerator produced radioactive
material
National Pollutant Discharge Elimination System
The Oil Pollution Act of 1990
Oil Spill Removal Organization
Polychlorinated biphenyls
US Ecology Holdings, Inc. (f/k/a US Ecology, Inc.), the
predecessor to US Ecology
Québec Environmental Quality Act
Resource Conservation and Recovery Act of 1976
Railroad Commission of Texas
Toxic Substances Control Act of 1976
Treatment, Storage and Disposal Facility
U.S. Army Corps of Engineers
U.S. Coast Guard
U.S. Environmental Protection Agency
U.S. Nuclear Regulatory Commission
Washington Utilities and Transportation Commission

US Ecology is a leading provider of environmental services to commercial and governmental entities. The Company addresses
the  complex  waste  management  and  response  needs  of  its  customers,  offering  treatment,  disposal  and  recycling  of  hazardous,
non-hazardous  and  radioactive  waste,  leading  emergency  response  and  standby  services,  and  a  wide  range  of  complementary
field  services.  US  Ecology’s  focus  on  safety,  environmental  compliance  and  best-in-class  customer  service  enables  us  to
effectively meet the needs of our customers and to build long-lasting relationships. US Ecology and its predecessor companies
have been in business for more than 65 years. As of December 31, 2020, we employed approximately 3,600 people.

Predecessor  US  Ecology  was  incorporated  as  a  Delaware  corporation  in  March  1987  as  American  Ecology  Corporation.  On
February  22,  2010,  Predecessor  US  Ecology  changed  its  name  from  American  Ecology  Corporation  to  US  Ecology,  Inc.  On
November 1, 2019, in connection with the Company’s acquisition of NRC (the “NRC Merger”) pursuant

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to that certain Agreement and Plan of Merger, dated June 23, 2019 (the “NRC Merger Agreement”), by and among the Company,
NRC,  Predecessor  US  Ecology,  Rooster  Merger  Sub,  Inc.  and  ECOL  Merger  Sub,  Inc.,  a  new  parent  entity  of  US  Ecology
completed a merger transaction with Predecessor US Ecology, became the successor to Predecessor US Ecology and changed its
name to “US Ecology, Inc.” In connection with the closing of the NRC Merger, Predecessor US Ecology changed its name to
“US Ecology Holdings, Inc.,” and remains a wholly-owned subsidiary of US Ecology. Our filings with the SEC are posted on our
website at www.usecology.com or can be obtained by accessing the SEC’s website at www.sec.gov. The information found on
our website is not part of this or any other report we file with or furnish to the SEC.

We have a network of fixed facilities and service centers operating primarily in the United States, Canada, the United Kingdom
and Mexico.  Our fixed  facilities  include  five  RCRA subtitle  C hazardous  waste landfills,  three  landfills  serving  waste streams
regulated by the RRC and one LLRW landfill. We also have various other TSDF facilities located throughout the United States.
These facilities generate revenue from fees charged to transport, recycle, treat and dispose of waste and to perform various field
services for our customers.

Effective in the fourth quarter of 2020, we have made changes to the manner in which we manage our business, make operating
decisions and assess our performance. The energy waste business that was acquired through the NRC Merger now comprises our
Energy Waste segment. Prior to this change, the energy waste business was included in the Waste Solutions segment (formerly
“Environmental Services”). Throughout this Annual Report on Form 10-K, all periods presented have been recast to reflect these
changes. Under our new structure our operations are managed in three reportable segments reflecting our internal management
reporting structure and nature of services offered as follows:

Waste Solutions (formerly “Environmental Services”)—This segment provides safe and compliant specialty
waste management services including treatment, disposal, beneficial re-use, and recycling of hazardous, non-
hazardous, and other specialty waste at Company-owned treatment, storage, and disposal facilities, excluding
the services within our Energy Waste segment.

Field  Services  (formerly  “Field  &  Industrial  Services”)—This  segment  provides  safe  and  compliant
logistics and response solutions focusing on “in-field’ service offerings through our network of 10-day transfer
facilities. Our logistics solutions include specialty waste packaging, collection, transportation, and total waste
management.  Our  response  solutions  include  land  and  marine  based  emergency  response,  OSRO  standby
compliance,  remediation,  and  industrial  services.  The  Field  Services  segment  completes  our  vertically
integrated model and serves to increase waste volumes into our Waste Solutions segment.

Energy  Waste—This  segment  provides  safe  and  compliant  energy  waste  management  and  critical  support
services to up-stream oil and gas customers in the Permian and Eagle Ford basins primarily operating in Texas.
Services include spill containment and site remediation, equipment cleaning & maintenance services, specialty
equipment  rental,  including  tanks,  pumps  and  containment,  safety  monitoring  and  management  and
transportation  and  disposal.  This  segment  includes  all  of  the  energy  waste  business  of  the  legacy  NRC
operations and none of the legacy US Ecology operations.

Waste Solutions Segment

Our Waste Solutions involve the transportation, treatment, recycling and disposal of hazardous, non-hazardous and radioactive
wastes, and include physical treatment, recycling, landfill and deep-well injection disposal and wastewater treatment services.

Waste Treatment & Disposal

We recycle, treat and dispose of hazardous and non-hazardous industrial wastes. The wastes handled include substances which
are classified as “hazardous” because of their corrosive, ignitable, reactive or toxic properties, and other wastes subject to federal,
state and provincial environmental regulation. The wastes we handle come in solid, liquid and sludge form and can be received in
a variety of containerized and bulk forms and transported to our facilities by truck and rail.

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We operate five permitted hazardous waste treatment, storage and disposal facilities with landfills in Beatty, Nevada; Robstown,
Texas;  Grand  View,  Idaho;  Belleville,  Michigan  and  Blainville,  Québec,  Canada.  These  facilities  are  used  primarily  for  the
disposal  of  wastes  treated  at  Company-owned  onsite  and  offsite  treatment  facilities.  The  United  States  landfills  are  regulated
under RCRA by the respective states in which they are located and the USEPA. Our onsite treatment facilities specialize in the
treatment  and  disposal  of  RCRA,  TSCA,  PCB  remediation  and  certain  USNRC-exempt  (NORM/NARM,  Technologically
Enhanced NORM (TENORM)) radioactive waste. Our Canadian landfill is regulated by the Québec Ministry of Environment and
authorized under the QEQA to treat and stabilize inorganic hazardous liquid and solid waste and contaminated soils to produce a
non-leachable concrete-like material for disposal in the onsite landfill, specializing in processing hard to treat materials, such as
cyanides, mercury compounds, strong acids, non-organic oxidizers, lab packs, contaminated debris and batteries.

We  operate  a  commercial  LLRW  landfill  in  Richland,  Washington  that  is  licensed  by  the  Washington  Department  of  Health
through delegated authority of the USNRC. The WUTC sets disposal rates for LLRW. Rates are set at an amount sufficient to
cover operating costs and provide us with a reasonable profit. The current rate agreement with the WUTC was extended in 2019
and is effective until December 31, 2025.

As of December 31, 2020, the capacity used in the calculation of the useful economic lives of our six Waste Solutions landfills
includes approximately 45.0 million cubic yards of remaining permitted airspace capacity and approximately 18.1 million cubic
yards of additional unpermitted airspace capacity included in the footprints of these landfills. We believe it is probable that this
unpermitted airspace capacity will be permitted in the future based on our analysis of site conditions, past regulatory approvals on
adjacent  property,  and  our  interactions  with  regulators  on  applicable  regulations,  although  there  can  be  no  assurance  that  any
additional unpermitted airspace capacity will be permitted in the future.

We  also  operate  a  caprock  injection  well  in  Winnie,  Texas  with  full  Class  1  and  2  non-hazardous  industrial  waste  disposal
capabilities. Utilizing proprietary low-pressure injection technology, the deep-well asset provides the unique ability to efficiently
dispose of difficult to treat non-hazardous industrial waste streams, including high metals, high ammonia, high solids, flammable
exempt,  and  leachate.  Based  on  an  independent  determination  of  the  injection  capacity  of  the  caprock  formation  in  which  we
inject waste and our own estimates of projected injection volumes, we believe the remaining disposal capacity of the formation
will be sufficient to meet our disposal needs for the foreseeable future.

We  operate  seven  wastewater  treatment  facilities  located  in  Detroit,  Michigan  (2);  Canton,  Ohio;  Harvey,  Illinois;  York,
Pennsylvania; Tulsa, Oklahoma and Vernon, California that offer a range of wastewater treatment technologies. These facilities
also  have  RCRA-permitted  storage  capabilities  where  waste  may  be  stored  prior  to  treatment  or  transferred  to  another  RCRA
facility for treatment. We also operate a hazardous and non-hazardous industrial waste treatment, storage, and disposal facility in
Tilbury, Ontario, Canada. The facility is permitted by the Ontario Ministry of Environment and specializes in the treatment of
non- hazardous hydrocarbon contaminated solids to industrial re-use standards.

We  break  our Waste  Solutions segment  treatment  and disposal  (“T&D”)  revenue  into two categories,  based on the underlying
nature of the revenue source: “Base Business” and “Event Business.”

Base Business consists of waste streams from ongoing industrial activities and tends to be reoccurring in nature. Our strategy is to
expand our Base Business while securing both short-term and extended-duration Event Business. We define Event Business as
non-recurring  projects  that  are  expected  to  equal  or  exceed  1,000  tons,  with  Base  Business  defined  as  all  other  business  not
meeting  the  definition  of  Event  Business.  The  duration  of  Event  Business  projects  can  last  from  a  several-week  cleanup  of  a
contaminated site to a multiple year cleanup project.

Base  Business  represented  approximately  73%  and  78%  of  disposal  revenue  (excluding  transportation)  for  the  years  ended
December  31,  2020  and  2019,  respectively.  Event  Business  contributed  approximately  27%  and  22%  of  disposal  revenue
(excluding transportation) for the years ended December 31, 2020 and 2019, respectively.

When Base Business covers our fixed overhead costs, a significant portion of disposal revenue generated from Event Business is
generally realized as operating income and net income. This strategy takes advantage of the operating leverage inherent to the
largely fixed-cost nature of the waste disposal business. Contribution margin is influenced by whether the

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waste  is  directly  disposed  (“direct  disposal”)  or  requires  the  application  of  chemical  reagents,  absorbents  or  other  additives
(variable costs) to treat the waste prior to disposal.

A significant portion of our T&D revenue is attributable to discrete Event Business projects which vary widely in size, duration
and  unit  pricing.  For  the  year  ended  December  31,  2020,  approximately  27%  of  our  T&D  revenue  was  derived  from  Event
Business  projects.  The  one-time  nature  of  Event  Business,  diverse  spectrum  of  waste  types  received  and  widely  varying  unit
pricing  necessarily  creates  variability  in  revenue  and  earnings.  This  variability  may  be  influenced  by  general  and  industry-
specific  economic  conditions,  funding  availability,  changes  in  laws  and  regulations,  government  enforcement  actions  or  court
orders, public controversy, litigation, weather, commercial real estate, closed military bases and other project timing, government
appropriation and funding cycles and other factors. The types and amounts of Base Business waste received also vary quarter to
quarter, sometimes significantly, but are generally more predictable than Event Business.

The  types  of  waste  received,  also  referred  to  as  “service  mix,”  can  produce  significant  quarter-to-quarter  and  year-to-year
variations in revenue, average selling price, gross profit, gross margin, operating profit and net income for both Base Business
and Event Business.

Recycling Services

We operate recycling technologies designed to reclaim valuable commodities from hazardous waste, including oil-bearing waste,
metal-bearing  waste,  batteries,  electronics,  airport  deicing  fluid  and  other  solvent-based  wastes  for  industrial  clients.  The
recycling  and  reclamation  process  involves  the  treatment  of  wastes  using  various  recovery  methods  to  effectively  remove
contaminants from the original material to restore its usefulness and to reduce the volume of waste requiring disposal.

We offer full-service storm water management and propylene glycol recovery at major airports. Recovered fluids are transported
to  our  RCRA  Part  B  and  CWT  permitted  chemical  recycling  facility  where  they  are  recycled  into  a  greater  than  99%  pure
material that is sold to industrial users.

We  also  operate  a  thermal  desorption  unit  at  our  Robstown,  Texas  facility  that  recovers  oil  and  metal  bearing  catalyst  from
refinery and other organic and oil-based waste. The recycled oil and recycled catalyst are sold to third parties.

Transportation

For waste transported by rail from locations distant from our facilities, transportation-related revenue can vary significantly and
can account for as significant portion of total project revenue. While bundling transportation and disposal services may reduce
overall  gross profit as a percentage  of total  revenue  (“gross margin”),  this value-added  service  has allowed  us to win multiple
projects that we believe we could not have otherwise competed for successfully. Our Company-owned fleet of gondola railcars,
which  is  periodically  supplemented  with  railcars  obtained  under  operating  leases,  has  reduced  our  transportation  expenses  by
largely eliminating reliance on more costly short-term rentals. These Company-owned railcars also help us to win business during
times of demand-driven railcar scarcity. We also utilize a variety of specially designed and constructed Company-owned tanker
trucks and trailers as well as various third-party transporters to support this activity. Further, to maximize utilization of our railcar
fleet,  we  periodically  deploy  available  railcars  to  transport  waste  from  cleanup  sites  to  disposal  facilities  operated  by  other
companies. Such transportation services may also be bundled with logistics and field services support work.

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Field Services Segment

Our Field Services include a wide range of specialty and total waste management services provided to refineries, chemical plants,
steel  and  automotive  plants,  and  other  government,  commercial  and  industrial  facilities  either  on-site  or  at  our  network  of
facilities located throughout the United States. Specialty services include industrial cleaning and maintenance, remediation, lab
pack, transportation and emergency response. Our specialty and total waste management services are organized into service lines
including Emergency Response, Standby Services, Small Quantity Generation, Remediation Services, Total Waste Management,
Transfer and Processing, and Industrial Services.

Emergency Response

Our primary emergency response offerings include spill response, waste analysis and treatment and disposal planning. We also
offer  remediation,  product  transfers,  spill  contingency  planning  and  yearly  service  agreements  with  first  responder  status.
Trained, experienced professionals operate the Company’s emergency response service 24 hours per day, seven days per week.

Standby Services

We provide government-mandated, commercial standby oil spill compliance solutions to companies that store, transport, produce
or handle petroleum and certain nonpetroleum oils on or near U.S. waters. Our standby services customers pay annual retainer
fees  under  long-term  or  evergreen  contracts  for  access  to  our  regulatory  certifications,  specialized  assets  and  highly  trained
personnel, who are on call 24 hours per day, seven days per week to respond to marine-based oil spill and hazardous materials
emergencies.

Small Quantity Generation

Our small  quantity  generation  service  offerings  consist  of  retail  services,  laboratory  packing,  less  than  truckload  (“LTL”),  and
household  hazardous  waste  (“HHW”)  collection.  Retail  services,  laboratory  packing,  LTL  and  HHW  are  full-service  waste
characterization, packaging, collection and transportation programs. Services are provided to small, medium and large industrial
and commercial customers. These programs are built on our network of service centers, employ highly trained staff and provide a
high level of service to the customer. As an integral part of our services, we operate a network of service centers that characterize,
package and collect hazardous and non-hazardous wastes from customers and transport such wastes to and between our facilities
for treatment or bulking for shipment to final disposal locations. Customers typically accumulate wastes in containers, such as 55
gallon drums, bulk storage tanks or 20 cubic yard roll-off containers. We utilize a variety of specially designed and constructed
tank  trucks  and  semi-trailers  as  well  as  third-party  transporters,  including  railroads.  Depending  on  customer  needs  and
competitive economics, transportation services may be offered at or near our cost to help secure new business.

Remediation Services

Our  remediation  service  offerings  include  project  management,  RCRA  and  TSCA  closures,  excavations,  wastewater
management, building decontamination, landfill capping and site remediation.

Total Waste Management (“TWM”)

Through our TWM programs, customers outsource a portion of their sustainability programs to us, allowing us to organize and
coordinate their waste management disposal activities and environmental compliance.

Transfer and Processing

Our transfer and processing stations stage and consolidate non-bulk loads of hazardous, non-hazardous and universal waste into
full loads for more efficient shipment to Company-owned or third-party treatment and disposal facilities. This allows us to offer a
broader geographic presence without having a dedicated, Company-owned treatment or disposal facility in the region.

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Industrial Services

Our  primary  industrial  service  offerings  include  industrial  cleaning  and  maintenance  for  refineries,  chemical  plants,  steel  and
automotive plants, as well as tank cleaning and temporary storage.

Energy Waste Segment

We  own  and  operate  three  landfills  located  in  Karnes  County,  Texas;  Pecos  County,  Texas  and  Reagan  County,  Texas  that
specialize  in  the  disposal  of  drill  cuttings,  drilling  muds  and  other  oil  field  related  waste  streams  regulated  by  the  RRC.  In
addition, we own property in Andrews County, Texas, that is permitted for development as a waste disposal site for similar waste
streams. These facilities are supported by a network of related oil field services capabilities including transportation, equipment
rental, emergency response and other oil field services work.

As of December 31, 2020, the capacity used in the calculation of the useful economic lives of our three Energy Waste landfills
includes approximately 27.5 million cubic yards of remaining permitted airspace capacity.

We also operate five additional domestic biosolid wastewater treatment facilities in Texas. These domestic wastewater treatment
operations involve processing domestic wastewater through the use of physical, biological and chemical treatment methods. Our
domestic  wastewater  treatment  facilities  treat  a  broad  range  of  domestic  wastewaters.  Following  treatment,  the  clean  water  is
discharged under a NPDES permit while residual solids are transported to an offsite landfill.

Services include spill containment and site remediation, equipment cleaning & maintenance services, specialty equipment rental,
including tanks, pumps and containment, safety monitoring and management and transportation and disposal.

Waste Services Industry

During  the  1970s  and  1980s,  waste  services  industry  growth  in  the  United  States  was  driven  by  new  environmental  laws  and
actions  by  federal  and  state  agencies  to  regulate  existing  hazardous  waste  management  facilities  and  direct  the  cleanup  of
contaminated sites under the federal Superfund law. By the early 1990s, excess hazardous waste management capacity had been
constructed by the industry. Over this same period, in order to better manage risk and reduce expenses, many waste generators
instituted  industrial  process  changes  and  other  methods  to  reduce  waste  production.  These  factors  led  to  highly  competitive
market conditions that still apply today.

In the United States, hazardous waste is regulated under the RCRA, which created a cradle-to-grave system governing defined
hazardous  waste  from  the  point  of  generation  to  ultimate  disposal.  RCRA  requires  waste  generators  to  distinguish  between
“hazardous”  and  “non-hazardous”  wastes,  and  to  treat,  store  and  dispose  of  hazardous  waste  in  accordance  with  specific
regulations. Generally, entities that treat, store, or dispose of hazardous waste must obtain a permit, either from the USEPA or
from a state agency to which the USEPA has delegated such authority. Similar regulations and management methods apply to
hazardous waste generation in Canada, which is regulated by the Canada Ministry of Environment and delegated to provincial
agencies.

Disposal facilities are typically designed to permanently contain the waste and prevent the release of harmful pollutants into the
environment. The most common hazardous waste disposal practice is placement in an engineered disposal unit such as a landfill,
surface impoundment or deep-well injection. RCRA’s hazardous waste permitting program establishes specific requirements that
must be followed when managing those wastes.

In the United States, waste intrinsically derived from primary field operations associated with the exploration, development, or
production of crude oil and natural gas are exempt from regulation under RCRA Subtitle C. The RCRA Subtitle C exemption,
however,  does  not  preclude  these  wastes  from  control  under  state  regulations,  under  the  less  stringent  RCRA  Subtitle  D  solid
waste regulations, or under other federal regulations. Our landfills that support this industry are regulated by the RRC. Similar to
RCRA-regulated  landfills,  our  RRC-regulated  landfills  are  engineered  using  state  of  the  art  design  and  constructed  to
permanently contain the waste and prevent the release of harmful pollutants into the environment.

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OPA-90, a regulatory  framework  for the protection  of the  environment  from  oil spills  following the 1989 Exxon Valdez  spill,
also imposes obligations on operators and owners of facilities, such as refineries, pipelines and E&P platforms and requires them
to have a USCG compliant spill response plan.

We believe that a baseline demand for hazardous and non-hazardous waste services will continue into the future with fluctuations
driven  by  general  and  industry-specific  economic  conditions,  identification  and  prioritization  of  new  cleanup  needs,  cleanup
project schedules, funding availability, regulatory changes and other public policy decisions. We will also continue to advance
plans  and  business  lines  that  promote  sustainable  recycling  technologies  and  expect  the  recycling  portion  of  our  business  to
displace  some  of  our  base  disposal  services  over  time.  We  further  believe  that  the  ability  to  deliver  specialized  niche  services
while aggressively competing for large volume cleanup projects and non-niche commodity business opportunities differentiates
successful  from  less  successful  companies.  We  seek  to  control  variable  costs,  expand  service  lines,  increase  waste  throughput
efficiency,  employ  innovative  treatment  techniques,  provide  complementary  transportation  and  logistics  services,  build  market
share and increase profitability.

Our  Richland,  Washington  disposal  facility,  serving  the  Northwest  and  Rocky  Mountain  LLRW  Compacts,  is  one  of  three
operating  Compact  disposal  facilities  in  the  United  States.  While  our  Washington  disposal  facility  has  substantial  unused
capacity,  it  can  only  accept  LLRW  from  the  11  western  states  comprising  the  two  Compacts  served.  The  Barnwell,  South
Carolina  site,  operated  by  Energy  Solutions,  Inc.  (“Energy  Solutions”),  exclusively  serves  the  three-state  Atlantic  Compact.  A
third LLRW disposal facility, licensed by Waste Control Specialists, LLC and located near Andrews, Texas serves the two-state
Texas  Compact  and  approved  out-of-compact  waste  generators.  Class  A  LLRW  from  states  outside  the  Northwest  Compact
region may also be disposed at the commercial disposal site in Clive, Utah, also operated by Energy Solutions.

Increases in pricing at AEA licensed LLRW disposal facilities  heightened demand for more cost-effective  disposal options for
soil,  debris,  consumer  products,  industrial  wastes and other  materials  containing  LARM, including  “mixed  wastes,”  exhibiting
both  hazardous  and  radioactive  properties.  In  addition  to  commercial  demand,  a  substantial  amount  of  LARM  is  generated  by
government cleanup projects. The USNRC, USEPA and USACE have authorized the use of hazardous waste disposal facilities to
dispose  of  certain  LARM,  encouraging  expansion  of  this  compliant,  cost-effective  alternative.  We  have  been  successful  at
expanding our permits at four of our RCRA hazardous waste facilities to allow acceptance of additional LARM wastes.

Industrial Services Industry

The  industrial  services  industry  is  highly  fragmented  with  thousands  of  small  companies  performing  a  variety  of  cleaning,
maintenance and other services to industrial based companies such as refineries, chemical plants and steel and automotive plants.
We believe customers increasingly desire to shift high fixed costs to lower variable costs by outsourcing waste management and
industrial services. Some companies, such as power generation plants, petroleum refineries and chemical processors, are required
to  perform  specialized  “turnaround”  maintenance  only  once  or  twice  per  year,  making  it  impractical  and  cost-prohibitive  to
purchase expensive, specialized equipment, comply with complex permits and employ full-time specialized technicians required
to  perform  those  services.  Similarly,  the  regulatory  requirements  of  characterizing,  manifesting,  transporting  and  properly
disposing  of  waste  has  led  many  companies  to  outsource  this  function  to  specialists.  Our  network  of  service  centers  and
treatment, recycling and storage facilities provides a national footprint allowing us to serve these customers, while at the same
time internalizing the waste to our own facilities.

Industrial services generally have low barriers to entry and customers are frequently won based on quality of service, reputation,
health and safety record, logistics and price. This low barrier to entry has fostered a fragmented and competitive market place.

Emergency Response and Standby Services Industry

We  provide  emergency  spill  response  services  and  marine-based  standby  oil  spill  compliance  (the  “standby  services”)  in  the
United States, Mexico, the United Kingdom and other international locations.

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Our  emergency  spill  response  services  are  designed  to  address  both  large-scale  and  small-scale  response  events.  Large-scale
response  services  typically  result  from  natural  disasters  such  as  hurricanes,  fires,  floods  and  earthquakes  as  well  as  large
industrial  accidents  such  as  pipeline  spills,  industrial  fires,  rail  car  derailments  and  marine  vessel  accidents.  These  large
emergency response events are inherently difficult to predict, and when they occur can result in a significant revenue opportunity.
Our  small-scale  emergency  response  services  address  smaller  recurring  industrial  and  transportation  accidents  or  discharges.
With the combination of our nationwide footprint, our vast service capabilities and specialized asset base, we believe the demand
for these emergency response services will increase in line with overall industrial activity. We respond to multiple small-scale
spill events per day, every day, across the United States.

Our  standby  services  customers  pay  annual  retainer  fees  under  long-term  or  evergreen  contracts  for  access  to  regulatory
certifications, specialized assets and highly trained personnel, who are on call 24 hours per day, seven days per week to respond
to an oil spill or other hazardous materials emergency response events.

OPA-90 mandates certain oil spill response coverage for companies that store, transport, produce or handle petroleum and certain
non-petroleum oils on or near U.S. ports, harbors and other waters.

Our standby services business is the only national commercial OSRO in the United States and the only commercial provider of
standby services that satisfies the requirements of both OPA-90 and other federal, state and municipal requirements. In addition,
we hold the highest oil spill contractor classification offered by the USCG. We maintain an installed base of specialized oil spill
response  equipment  and  highly  trained  personnel  around  the  United  States  to  ensure  rapid  response  capabilities.  We  provide
government-mandated  standby  compliance  solutions  to  more  than  2,000  customers  that  cover  approximately  20,000  assets,
including tank and non-tank vessels, barges, petrochemical facilities, pipelines, refineries and other assets.

Additionally, our internal standby services business is augmented by our network of over 200 independent contractors throughout
the United States to ensure expedient response times in any location. These independent contractors provide both personnel and,
if required, equipment, to meet the immediate needs of our customers. Contractors must meet stringent requirements to become
part  of  our  network.  Our  contractors  are  paid  when  an  event  occurs  for  work  that  is  actually  completed  and,  as  such,  do  not
receive any of our annual standby retainer payments.

Our standby services business is a recurring, retainer-based business model that provides opportunity for incremental marine spill
response  revenue.  To  the  extent  a  standby  services  retainer  customer  has  a  spill  incident,  we  coordinate  and  manage  the  spill
response by leveraging both internal resources and our independent contractor network. We generate incremental revenue with
respect  to  services  provided  through  internal  resources  and  independent  contractors  on  all  response  events,  in  addition  to  the
annual retainer payments we collect each year.

Our  standby  services  contribution  margin  is  very  high  in  light  of  the  expansive  infrastructure  that  is  already  in  place.  These
services are government-mandated for our customers and serve as a low-cost yet invaluable “insurance policy” in the event of an
incident. High barriers to entry, driven by the high cost of infrastructure necessary to achieve economies of scale, the high cost of
failure, and regulatory certification requirements, have resulted in minimal new market competitors since market inception.

Mexico represents a growth opportunity for us. The recently privatized Mexican oil and gas market has resulted in the Mexican
government  actively  auctioning  off  blocks  for  offshore  exploration  to  leading  global  oil  companies.  Although  OPA-90  only
applies  to  United  States  territories,  the  Mexican  government  and  many  leading  global  and  U.S.-based  companies  seek  OSRO-
type  coverage  similar  to  that  required  in  the  United  States  and  other  countries.  Our  primary  standby  services  competitor  is
currently unable to operate outside of U.S. waters, which leaves us well-positioned to be the provider of choice for these services
internationally. This advantage has helped us become a leading OSRO in Mexico.

Strategy

Our  strategy  is  to  capitalize  on  our  difficult-to-replicate  combination  of  treatment,  recycling  and  disposal  assets  and
complementary service lines to provide a full service offering to customers and increase market share in the diverse markets we
serve. We believe our focus on sustainability, workforce safety and protecting the environment, as well as our

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passionate commitment to customer service, provides for a long-term sustainable business model. In addition to organic growth
initiatives,  we  actively  pursue  acquisition  opportunities  to  expand  our  geographic  reach,  service  lines  and  customer  base.  The
principal elements of our business strategy are to:

Execute Best-in-Class Sustainability and Environmental Compliance Programs.

The cornerstone of our business is providing solutions that help us and our customers protect human health and the environment.
In doing so, we pursue best-in-class safety and environmental compliance at US Ecology. Our customers and regulators rely on
our expertise when they select us as a vendor or grant us permits and licenses. We deploy significant resources in terms of human
capital,  information  technology,  programs  and  facility  investments  to  achieve  safe  and  compliant  operations  that  protect  the
environment and all stakeholders. The Company has dedicated professionals who oversee and manage safety and environmental
programs including, but not limited to, employee training, internal and independent external audits, incentive programs and the
Safety  &  Health  Achievement  Recognition  Program.  Various  US  Ecology  facilities  have  obtained  third-party  verification  of
Environmental Health and Safety programs through the Occupational Safety and Health Administration’s (“OSHA”) Voluntary
Protection  Program  (“VPP”)  or  ISO  45001  and  ISO  14001  accreditation.  Senior  managers  regularly  review  and  discuss
environmental and safety results and performance with operational staff, management and the Company’s Board of Directors to
improve  our  safety  results  and  focus  on  regulatory  compliance.  Sustainability  targets  are  also  an  important  component  of  our
company-wide incentive programs.

Leverage Regulatory Expertise to Expand Permit Capabilities and Broaden Cost-Effective Service Offerings. We have a proven
track  record  of  leveraging  more  than  six  decades  of  regulatory  experience  to  broaden  our  service  offerings.  Working  with
customers,  we  assess  market  opportunities  in  relation  to  existing  laws,  regulations  and  permit  conditions.  Our  engineering,
operational and regulatory affairs personnel then seek authority to implement innovative processes and technologies and accept
additional types of waste by modifying our existing permits or obtaining new permits.

Continue to Build on Our Robust Waste Handling Infrastructure to Increase Revenue from Existing Assets. We believe we have a
difficult  to  replicate  set  of  treatment,  recycling  and  disposal  assets  in  the  highly  regulated  hazardous,  non-hazardous  and
radioactive waste industry. We aim to enhance treatment capabilities at our existing facilities to handle additional waste streams
and  increase  throughput.  We  also  continue  to  invest  in  equipment  and  infrastructure  to  ensure  that  we  have  ample  throughput
capacity to expand our Event Business while continuing to support our Base Business customers.

Execute  on  Marketing  Initiatives  to  Grow  Organically.  Our  sales  team  is  focused  on  high  margin,  niche  wastes  that  our
competitors may not be able to obtain the necessary regulatory authorizations for or handle cost-effectively. We seek to expand
into new markets and offer new services allowing us to cross-sell or bundle services and ultimately drive incremental volume into
our existing disposal facilities. In our Waste Solutions segment, our strategy is to achieve Base Business at a level that covers our
fixed overhead costs and delivers a reasonable profit, which allows the majority of our Event Business revenue to be realized as
operating profit. We aim to continue building our Base Business while remaining flexible enough to handle large cleanup events.
In  our  Field  Services  segment,  our  strategy  is  to  provide  value-added  services  that  generate  downstream  waste  treatment  and
disposal opportunities for our Waste Solutions segment while expanding service offerings to existing customers.

Deliver  Innovative  Technological  Solutions. We  challenge  ourselves  to  identify  innovative  and  technology-driven  solutions  to
solve  our  customers’  waste  management  challenges.  Past  examples  include  leveraging  our  expertise  in  developing  waste
treatment  recipes  for  organic  and  metals-bearing  wastes,  utilizing  waste  as  a  reagent  to  treat  other  wastes,  beneficial  reuse  of
select wastes, partnering with an innovative technology provider to deploy thermal desorption technology to recover and recycle
oil  and  metal  catalyst  from  refinery  waste,  and  stabilizing  mercury  laden  waste  and  other  wastes  using  a  patented  treatment
process.

Pursue a Disciplined Acquisition Strategy to Add Complementary Capabilities. We pursue selective acquisitions to expand our
disposal  network,  customer  base  and  geographic  footprint.  We  have  had  success  achieving  this  in  recent  years  through  our
targeted acquisition strategy, acquiring EQ Holdings, Inc. (“EQ”) in 2014, Environmental Services Inc. (“ESI”) and the Vernon,
California  based  RCRA Part  B, liquids  and  solids  waste  treatment  and  storage  facility  of  Evoqua  Water  Technologies  LLC  in
2016, ES&H of Dallas, LLC (“ES&H Dallas”) and Ecoserv Industrial Disposal, LLC (“Winnie”) in

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2018, NRC and W.I.S.E. Environmental Solutions Inc. (“US Ecology Sarnia”) in 2019 and Impact Environmental Services, Inc.
in 2020. The acquisition of NRC allowed us to expand our operations as a leading provider of emergency response and standby
services while also providing a network of over 50 locations to leverage our field service capabilities, industrial services and total
waste  management  programs.  In  addition,  the  NRC  Merger  provided  us  an  entry  into  specialty  landfill  and  waste  services
supporting  upstream  oil  and  gas  exploration.  We  will  continue  to  seek  acquisition  opportunities  to  further  expand  our  service
offerings across the environmental services value chain while maintaining our commitment to compliance, safety and customer
service excellence.

Competitive Strengths

Difficult-to-Replicate  Infrastructure.  We  consider  our  disposal  facilities  to  be  difficult  to  replicate  due  to  the  longstanding
regulatory  and  public  policy  environment  for  hazardous  waste  processing  facilities,  which  includes  the  generally  high  cost  of
obtaining permits, multi-year  permitting timeframes,  uncertainty of outcome, high initial capital expenditures and the potential
for both broad-based and local community opposition to the development of new facilities. We operate five of 20 landfills in the
United States and Canada that are permitted to accept RCRA wastes. Our Richland, Washington LLRW facility is one of only
three full-service Class A, B, and C disposal facilities in the United States. We also operate three landfills in Texas supporting the
oil and gas exploration industry that are constructed to specifications set forth under Subtitle D of RCRA and the RRC, with a
fourth location also owned by us and permitted by the RRC, but not yet constructed. Additionally, our marine resource network
provides  us  with  priority  access  to  an  extensive  network  of  marine  assets,  and  our  aerial  resource  network  enables  us  to
coordinate  cargo  logistics  and  dispersant  services,  with  priority  access  to  a  significant  number  of  helicopters  and  fixed-wing
planes. Our rapid response capabilities and strategically-located facilities enable us to rapidly deploy assets and personnel within
24 hours depending on the proximity of necessary equipment. Replacing or replicating our fleet of vessels and barges utilized by
our standby services business would be difficult and costly for potential competitors because our vessels are customized with oil
spill recovery equipment and other vessel modifications specifically designed to enhance our effectiveness.

Specialized  Asset  Base  and  Essential  Regulatory  Certifications. We  maintain  a  specialized  asset  base  and  essential  regulatory
certifications  to  respond  to  environmental  events  throughout  the  globe  whenever  such  events  occur.  We  have  a  broad  fleet  of
vessels, marine equipment, vehicles, rolling stock and other equipment that requires extensive training and expertise to operate.
Replacing or replicating our fleet of vessels and barges utilized by our Field Services segment would be difficult and costly for
potential  competitors  because  our  vessels  are  customized  with  oil  spill  recovery  equipment  and  other  vessel  modifications
specifically designed to enhance our effectiveness. Federal, state and local legislation and other environmental agencies require
numerous  certifications  and  accreditations.  These  certifications  are  often  cost  and  time  prohibitive  to  obtain  and  require
expensive  multi-step,  complex  permitting  processes.  We  have  decades  of  experience  successfully  permitting  and  maintaining
regulatory compliance. Certain of our barges have also been grandfathered into certain regulatory requirements. Certain of our
vessels,  because  they  are  used  exclusively  as  oil  spill  response  vessels,  are  exempt  from  certain  regulatory  requirements.  For
example, regulations requiring barges carrying oil to have double hulls generally do not impact our current fleet. Our specialized
asset base, essential regulatory certifications and entrenched market position pose a barrier to entry for potential competitors.

Significant  Regulatory  and  Operating  Expertise.  We  operate  in  a  highly  regulated  marketplace.  The  permitting  process  for
operating disposal assets in our industry is lengthy and complex, requiring a deep understanding of federal and state hazardous
and  radioactive  waste  laws  and  regulations.  We  maintain  a  regulatory  compliance  and  permitting  program  at  our  disposal
facilities that has allowed us to obtain approvals to expand our service offering in terms of the types, amounts and concentrations
of  wastes  that  we  are  authorized  to  accept.  Our  track  record  of  successfully  navigating  government  regulatory  and  permitting
processes has been a consistent competitive advantage.

A  Market  Leader  in  Hazardous  &  Non-Hazardous  Waste  Treatment  and  Disposal.  We  are  a  leader  in  the  hazardous  waste
services  sector  with  more  than  six  decades  of  experience.  Our  collection  of  disposal  assets  and  proprietary  treatment
technologies,  combined  with  our  transportation  network,  provides  us  with  coast-to-coast  treatment  and  disposal  capabilities,
allowing us to serve a diverse mix of customers and industries.

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Comprehensive  Waste  Services.  Our  comprehensive  waste  service  offerings  allow  us  to  act  as  a  full-service  provider  to  our
customers. Our full-service orientation creates incremental revenue growth as customers seek to minimize the number of outside
vendors through “one-stop” service providers.

Diverse  Markets  and  Customer  Base.  In  2020,  we  serviced  more  than  8,000  commercial  and  governmental  entities,  such  as
refineries, chemical production facilities, heavy manufacturers, steel mills, oil and gas exploration companies, waste brokers and
medical and academic institutions. Our broad range of end-markets gives us exposure to a variety of industrial cycles, lessening
the impact of market volatility.

Solid  Safety  and  Compliance  Record.  Safety  and  environmental  compliance  is  a  cornerstone  of  US  Ecology’s  business.  The
Company has dedicated professionals who oversee and manage safety and environmental programs including, but not limited to,
employee  training,  internal  and  independent  external  audits,  incentive  programs  and  the  Safety  &  Health  Achievement
Recognition Program. Various US Ecology facilities have obtained third-party verification of Environmental Health and Safety
programs  through  OSHA’s  VPP  or  ISO  45001  and  ISO  14001  accreditation.  Senior  managers  regularly  review  and  discuss
environmental and safety results and performance with operational staff, management and the Company’s Board of Directors to
improve our safety results and focus on regulatory compliance.

Competition

Our  Waste  Solutions  segment  competes  with  large  and  small  companies  in  each  of  the  commercial  markets  we  serve.  While
niche  services  apply,  the  radioactive,  hazardous  and  non-hazardous  industrial  waste  management  industry  is  generally  very
competitive.  We  believe  that  our  primary  hazardous  waste  and  PCB  disposal  competitors  are  Clean  Harbors,  Inc.,  Heritage
Environmental Services and Waste Management, Inc. Other hazardous waste disposal competitors include, but are not limited to,
Tradebe, Ross Environmental, Harsco Corporation and Veolia Environmental Services. Our waste disposal competitors serving
the Permian and Eagle Ford oil fields include Republic Services, Inc., Waste Management, Inc. and Waste Connections, Inc. We
believe that our primary radioactive material disposal competitors are Energy Solutions, Inc. and Waste Control Specialists, Inc.
We believe the principal competitive factors applicable to these businesses are:

●

●

●

●

●

●

●

●

●

price;

specialized permits and “niche” service offerings;

customer service;

operational efficiency and technical expertise;

comprehensive and bundled services;

regulatory compliance and worker safety;

industry reputation and brand name recognition;

transportation distance; and

state or province and local community support.

Competition  within our Field Services segment varies  by locality  and type of service  rendered, with competition coming from
large  national  and  regional  service  providers  and  hundreds  of  privately-owned  firms  that  offer  field  or  industrial  services.  We
believe  that  our  primary  field  services  competitors  are  Clean  Harbors,  Inc.,  Harsco  Corporation,  Heritage  Environmental
Services,  Tradebe,  Veolia  Environmental  Services  and  Waste  Management,  Inc.  Each  of  these  competitors  is  able  to  provide
most if not all of the field services we offer. We believe that our primary standby services competitor is Marine Spill Response
Corporation, a not-for-profit USCG-classified OSRO.

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We  believe  that  we  are  competitive  in  all  markets  we  serve  and  that  we  offer  a  unique  mix  of  services,  including  niche
technologies and services that favorably distinguish us from competitors. We also believe that our strong brand name recognition
from six decades of experience, compliance and safety record, customer service reputation and positive relations with regulators
and local communities enhance our competitive position. Advantages exist for competitors that (1) are larger in scale, (2) have
technology, permits or equipment to handle a broader range of waste, (3) operate in jurisdictions imposing lower disposal fees
and/or (4) are located closer to where wastes are generated.

Permits, Licenses and Regulatory Requirements

Obtaining authorization to construct and operate new waste disposal facilities is a lengthy and complex process. We believe we
have demonstrated significant expertise in this area over multiple decades. We also believe we possess all permits, licenses and
regulatory  approvals  required  to  maintain  regulatory  compliance  and  operate  our  facilities  and  have  the  specialized  expertise
required to obtain additional approvals to continue growing our business in the future.

We  incur  costs  and  make  capital  investments  to  comply  with  environmental  regulations.  These  regulations  require  that  we
operate our facilities in accordance with permit-specific requirements. Most of our facilities are also required to provide financial
assurance  for  closure  and  post-closure  obligations  should  our  facilities  cease  operations.  Both  human  resource  and  capital
investments are required to maintain compliance with these requirements.

United States Hazardous Waste Regulation

Our hazardous, industrial, non-hazardous and radioactive waste treatment, disposal and handling business is subject to extensive
federal  and  state  environmental,  health,  safety,  and  transportation  laws,  regulations,  permits  and  licenses.  Local  government
controls  and  regulations  may  also  apply.  The  applicable  government  regulatory  agencies  regularly  inspect  our  operations  to
monitor  compliance.  Such  agencies  have  authority  to  enforce  compliance  through  the  suspension  or  revocation  of  operating
licenses  and  permits  and  the  imposition  of  civil  or  criminal  penalties  in  case  of  violations.  We  believe  that  these  laws  and
regulations, as well as the specialized services we provide, contribute to demand and create barriers to new competitors seeking
to enter the markets we serve.

RCRA  provides  a  comprehensive  framework  for  regulating  hazardous  waste  transportation,  treatment,  storage  and  disposal.
RCRA regulation is the responsibility of the USEPA, which may delegate authority to state agencies. Chemical compounds and
residues  derived  from  USEPA-listed  industrial  processes  are  subject  to  RCRA  standards  unless  they  are  delisted  through
rulemaking. RCRA liability may be imposed for improper waste management or failure to take corrective action for releases of
hazardous substances. To the extent wastes are recycled or beneficially reused, regulatory controls and permitting requirements
under  RCRA  diminish.  LARM  and  NORM/NARM  may  also  be  managed  to  varying  degrees  under  RCRA  permits,  as  is
authorized for our facilities in Grand View, Idaho, Beatty, Nevada, Belleville, Michigan and Robstown, Texas.

CWA legislation prohibits discharge of pollutants into the waters of the United States without governmental authorization and
regulates  the  discharge  of  pollutants  into  surface  waters  and  sewers  from  a  variety  of  sources,  including  disposal  sites  and
treatment  facilities.  The  USEPA  has  promulgated  “pretreatment”  regulations  under  the  CWA,  which  establish  pretreatment
standards  for  introduction  of  pollutants  into  publicly-owned  treatment  works.  In  the  course  of  the  treatment  process,  our
wastewater  treatment  facilities  generate  wastewater  that  we  discharge  to  publicly-owned  treatment  works  pursuant  to  permits
issued  by  the  appropriate  governmental  authority.  We  are  required  to  obtain  discharge  permits  and  conduct  sampling  and
monitoring programs.

CERCLA  and  its  amendments  impose  strict,  joint  and  several  liability  on  owners  or  operators  of  facilities  where  a  release  of
hazardous substances has occurred, on parties who generated hazardous substances released at such facilities and on parties who
arranged  for  the  transportation  of  hazardous  substances.  Liability  under  CERCLA  may  be  imposed  if  improper  releases  of
hazardous  substances  occur  at  treatment,  storage  or  disposal  sites.  Since  waste  generators,  transporters  and  those  who  arrange
transportation are subject to the same liabilities, we believe these parties are motivated to minimize the number of disposal sites
used. In addition, hazardous waste generated during the remediation of CERCLA cleanup projects and transferred offsite must be
managed by a treatment and disposal facility authorized by the USEPA to manage CERCLA waste.

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TSCA regulates the treatment, storage and disposal of PCBs. U.S. regulation and licensing of PCB wastes is the responsibility of
the  USEPA.  Our  Grand  View,  Idaho  and  Beatty,  Nevada  facilities  have  TSCA  treatment,  storage  and  disposal  permits.  Our
Belleville,  Michigan  facility  has  a  TSCA  disposal  permit.  Our  Robstown,  Texas  facility  has  a  TSCA  storage  permit  and  may
dispose of PCB-contaminated waste in limited concentrations not requiring a TSCA disposal permit.

The  AEA  assigns  the  USNRC  regulatory  authority  over  receipt,  possession,  use  and  transfer  of  certain  radioactive  materials,
including disposal. The USNRC has adopted regulations for licensing commercial LLRW disposal and has delegated regulatory
authority  to  certain  states  including  Washington,  where  our  Richland  facility  is  located.  The  USNRC  and  U.S.  Department  of
Transportation  regulate  the  transport  of  radioactive  materials.  Shippers  must  comply  with  both  the  general  requirements  for
hazardous materials transportation and specific requirements for transporting radioactive materials.

Waste intrinsically derived from primary field operations associated with the exploration, development, or production of crude oil
and natural gas is exempt from regulation under RCRA Subtitle C. The RCRA Subtitle C exemption, however, does not preclude
these  wastes  from  control  under  state  regulations,  under  the  less  stringent  RCRA  Subtitle  D  solid  waste  regulations,  or  under
other federal regulations. Our landfills that support this industry are regulated by the RRC. Similar to RCRA-regulated landfills,
our RRC-regulated  landfills  are  engineered  using state  of the art  design  and constructed  to permanently  contain  the  waste and
prevent the release of harmful pollutants into the environment.

The  Energy  Policy  Act  of  2005  amended  the  AEA  to  classify  discrete  (i.e.  concentrated  versus  diffuse)  NORM/NARM  as
byproduct material. The law does not apply to interstate Compacts ratified by Congress pursuant to the LLRW Policy Act.

Our transportation operations are regulated by the U.S. Department of Transportation, the Federal Railroad Administration, the
Federal  Aviation  Administration  and  the  USCG,  as  well  as  by  the  regulatory  agencies  of  each  state  in  which  we  operate  or
through which our vehicles pass, including but not limited to the RRC.

OPA-90 establishes a regulatory and liability regime for the protection of the environment from oil spills. Enacted by Congress in
1990  after  the  Exxon  Valdez  tanker  oil  spill  in  Alaska,  OPA-90  (1)  consolidated  the  existing  federal  oil  spill  laws  under  one
program,  (2)  expanded  the  existing  liability  provisions  within  the  CWA  and  (3)  established  new  freestanding  requirements
regarding  marine  oil  spill  prevention  and  response.  Under  its  provisions,  all  U.S.  tank  vessels,  offshore  facilities  and  certain
onshore facilities (including pipelines, refineries and terminals) are required to prepare and submit oil spill response plans to the
relevant federal agency. In general, these vessels and facilities are prohibited from handling, storing and transporting oil if they
do not have a plan approved by (or submitted to) the appropriate agency. The plans must provide, among other things, details of
how the owner or operator of a vessel or facility would respond to a “worst case” scenario spill. While every vessel or facility is
not required to have all of the personnel and equipment needed to respond to a “worst case” spill, they each must have a plan and
procedures to call upon (typically through a contractual relationship with an OSRO), the necessary equipment and personnel for
responding to such a spill within a prescribed timeframe.

In 2004, Congress amended OPA-90 to require that all vessels over 400 gross tons (not just tankers) prepare and submit a vessel
response plan, as many non-tank vessels pose the same oil spill risk as small tank vessels due to the comparable volume of oil
they  have  onboard  for  fuel.  In  2013,  regulations  for  non-tank  vessels  were  further  tightened,  and  OPA-90  compliance  now
requires that non-tank vessel operators contract directly with an OSRO.

The OSRO classification process was developed to facilitate the preparation and review of facility and vessel response plans. The
OSRO classification  process  represents  standard  guidelines  by  which  the  USCG and  plan  developers  can  evaluate  an  OSRO’s
potential to respond to and recover oil spills of various sizes. OSROs are classified based on the location of response resources
and an assessment of the ability to mobilize those resources to the Captain of the Port (“COTP”) city or alternate classification
city.  There  are  equipment  standards  and  response  times  specific  to  each  operating  area  within  a  COTP  zone.  Customers  that
arrange  for  the  services  of  a  USCG-classified  OSRO  do  not  have  to  list  their  response  resources  in  their  response  plans.  In
addition  to  potential  liability  under  the  federal  OPA-90,  vessel  owners  may  in  some  instances  incur  liability  on  an  even  more
stringent basis under state law in the particular state where the spillage occurred.

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Canadian Hazardous Waste Regulation

The  Canadian  federal  government  regulates  issues  of  national  scope  where  activities  cross  provincial  boundaries  and  affect
Canada’s relations with other nations. The Canadian provinces retain control over environmental matters within their respective
boundaries, including primary responsibility for regulation and management of hazardous waste.

The  main  federal  laws  governing  hazardous  waste  management  are  CEPA  and  the  Transportation  of  Dangerous  Goods  Act.
Environment  and  Climate  Change  Canada  is  the  federal  agency  with  responsibility  for  environmental  matters.  CEPA  charges
Environment and Climate Change Canada and Health Canada with the protection of human health and the environment and seeks
to  control  the  production,  importation  and  use  of  substances  in  Canada  and  their  impact  on  the  environment.  The  Export  and
Import  of  Hazardous  Waste  Regulations  under  CEPA  govern  trans-border  movement  of  hazardous  waste  and  hazardous
recyclable  materials.  These  regulations  require  that  anyone  proposing  to  export  or  import  hazardous  waste  or  hazardous
recyclable materials or transport them through Canada notify the Minister of the Environment and obtain a permit to do so.

Our Stablex facility is located in Blainville, Québec, Canada and is subject to QEQA. This Act, independently developed by the
Province, regulates the generation, characterization, transport, treatment and disposal of hazardous wastes. QEQA also provides
for the establishment of waste management facilities which are controlled by the provincial statutes and regulations governing
releases to air, groundwater and surface water.

Our  Tilbury,  Ontario,  Canada  facility  is  subject  to  Regulation  347  of  the  Ontario  Environmental  Protection  Act  (“Regulation
347”).  Regulation  347,  independently  developed  by  the  Province,  regulates  the  collection,  storage,  transportation,  treatment,
recovery and disposal of hazardous wastes.

Waste  transporters  are  required  to  hold  a  permit  to  operate  under  the  provincial  regulations  and  are  also  subject  to  the
requirements  of  the  Federal  Transportation  of  Dangerous  Goods law,  which  requires  reporting  of  quantities  and  disposition  of
materials shipped.

A  major  difference  between  the  United  States  regulatory  regime  and  that  of  Canada  relates  to  ownership  and  liability.  Under
Canadian  federal  regulation,  ownership  changes  when  waste  is  transferred  to  a  properly  permitted  third-party  carrier  and
subsequently  to  an  approved  treatment  and  disposal  facility.  As  a  result,  the  generator  is  no  longer  liable  for  proper  handling,
treatment  or  disposal  once  the  waste  is  transferred.  In  the  United  States,  joint  and  several  liability  is  retained  by  the  waste
generator as well as the transporter and the treatment and disposal facility.

Maritime Regulations

We own and use in our operations 44 vessels registered under the U.S. flag. Accordingly, we are subject to various U.S. federal,
state and local statutes and regulations governing the ownership, operation and maintenance of our vessels. Our U.S.-flag vessels
are  subject  to  the  jurisdiction  of  the  USCG, the  United  States  Customs  and  Border  Protection  and  the  United  States  Maritime
Administration. We are also subject to international laws and conventions and the local laws of foreign jurisdictions where we
operate.

A portion of the operations of our standby services business is conducted in the U.S. coastwise trade. This is a protected market
that  is  subject  to  U.S.  cabotage  laws  that  impose  certain  restrictions  on  the  ownership  and  operation  of  vessels  in  the  U.S.
coastwise trade. These laws are principally contained in 46 U.S.C. Chapters 121, 505 and 551 and the related regulations, which
are commonly referred to collectively as the “Jones Act.” The Jones Act restricts transportation of merchandise by water or by
land  and  water,  either  directly  or  via  a  foreign  port,  between  points  in  the  United  States  and  certain  of  its  island  territories.
Subject to limited exceptions, the Jones Act requires that vessels engaged in U.S. coastwise trade be owned and operated by U.S.
citizens within the meaning of the Jones Act (“U.S. Citizens”), be built in and registered under the laws of the United States and
manned by predominantly U.S. Citizen crews.

Under the citizenship provisions of the Jones Act, we would not be permitted to engage in U.S. coastwise trade if more than 25%
of any class or series of our outstanding equity was owned by non-U.S. Citizens (within the meaning of the Jones Act). For a
corporation engaged in the U.S. coastwise trade to be deemed a U.S. Citizen: (1) the corporation must

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be  organized  under  the  laws  of  the  United  States  or  of  a  state,  territory  or  possession  thereof,  (2)  each  of  the  chief  executive
officer, by whatever title, and the chairman of the board of directors of such corporation must be a U.S. Citizen, (3) no more than
a minority of the number of directors of such corporation necessary to constitute a quorum for the transaction of business can be
non-U.S. Citizens, (4) at least 75% of the ownership and voting power of each class or series of the shares of the capital stock of
such corporation must be owned and controlled by U.S. Citizens, free from any trust or fiduciary obligations in favor of non-U.S.
Citizens  and  (5)  there  must  be  no  contract  or  understanding  or  other  means  by  which  more  than  25%  of  the  voting  power  or
control of such corporation may be exercised directly or indirectly by or on behalf of non-U.S. Citizens.

Our charter includes provisions (1) limiting the ownership of any class or series of our capital stock by non-U.S. Citizens to 24%
(so as to allow a margin of safety under the statutory maximum of 25%), (2) prohibiting the transfer of shares of our capital stock
if doing so would cause us to exceed the 24% non-U.S. Citizen ownership threshold (any such shares, the “Excess Shares”), (3)
authorizing  the  redemption  of  Excess  Shares  by  the  Company,  (4)  suspending  the  right  to  vote  and  to  receive  dividends  and
distributions for such Excess Shares, (5) establishing procedures for the redemption of Excess Shares including providing notice
and setting the redemption price, (6) authorizing us to make citizenship determinations with respect to the holders of our capital
stock, (7) requiring holders (including beneficial holders) of our capital stock to submit information to establish the citizenship of
such holder and (8) generally authorizing our Board of Directors to take appropriate action to monitor and maintain compliance
with the ownership requirements of the Jones Act.

All  of  our  offshore  vessels  are  subject  to  either  U.S.  or  international  safety  and  classification  standards,  and  sometimes  both.
U.S.-flag vessels, barges and crewboats are required to undergo periodic inspections pursuant to USCG regulations.

We  are  in  compliance  with  the  International  Ship  and  Port  Facility  Security  Code  (the  “ISPFS  Code”),  an  amendment  to  the
International Convention for the Safety of Life at Sea (“SOLAS”) as implemented in the Maritime Transportation and Security
Act of 2002 to align United States regulations with those of SOLAS and the ISPS Code. The ISPS Code provides that owners or
operators  of  certain  vessels  and  facilities  must  provide  security  and  security  plans  for  their  vessels  and  facilities  and  obtain
appropriate  certification  of  compliance.  Under  the  ISPS  Code,  we  perform  worldwide  security  assessments,  risk  analyses  and
develop vessel and required port facility security plans to enhance safe and secure vessel and facility operations. Additionally, we
have developed security annexes for those U.S.-flag vessels that transit or work in waters designated as high risk by the USCG
pursuant to the latest revision of Marsec Directive 104-6.

Insurance, Financial Assurance and Risk Management

We  carry  a  broad  range  of  insurance  coverage  including  general  liability,  automobile  liability,  real  and  personal  property,
business interruption, workers compensation, directors and officers liability, environmental impairment liability, international and
marine  coverages  in  addition  to  other  coverage  customary  for  a  company  of  our  size  in  our  industry.  We  purchase  primary
property, casualty and excess liability policies through traditional third party insurance carriers. We are self-insured for employee
healthcare coverage with stop-loss insurance covering excess liabilities.

Our domestic casualty insurance program provides coverage for commercial general liability, employer’s liability and automobile
liability  in  the  aggregate  amount  of  $36.0  million  each,  per  year,  subject  to  a  $250,000  retention  per  occurrence  for  our
commercial  general  liability;  a  $350,000  deductible  per  occurrence  for  workers’  compensation  and  employer’s  liability  and  a
$500,000 deductible per occurrence for our automobile liability. Our workers compensation insurance limits are established by
state  statutes.  Our  Canadian  casualty  insurance  program  provides  primary  coverage  for  commercial  general  liability  and
automobile liability in the aggregate amount of $36.0 million each, per year, subject to a 50,000 Canadian dollars retention for
general liability and deductibles starting from 500 Canadian dollars for automobile liability depending on applicable policy.

Our  domestic  property  program  provides  coverage  for  real  and  personal  property,  business  interruption  and  contractors’
equipment  with  a  loss  limit  of  $35.0  million,  subject  to  a  $2.5  million  deductible  per  occurrence  for  property  and  business
interruption and a $500,000 deductible per occurrence for contractors’ equipment. The program also includes flood, earthquake
and  wind  coverage  within  the  loss  limit  subject  to  applicable  deductibles.  For  our  Vernon,  California  facility,  we  maintain  an
additional  $10.0  million  of  coverage  for  earthquakes  subject  to  a  $25,000  deductible  per  occurrence.  A  separate  boiler  and
machinery program with a loss limit of $100.0 million for property damage and business interruption

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is also maintained. Our Canadian property program provides coverage for real and personal property, business interruption and
contractors’ equipment with a loss limit of 84.0 million Canadian dollars, subject to applicable per-occurrence deductibles. This
program  includes  flood,  wind  and  earth-movement  coverage  within  the  stated  loss  limits.  A  separate  Canadian  boiler  and
machinery program with a loss limit of 86.1 million Canadian dollars is also maintained.

On November 17, 2018, an explosion occurred at our Grand View, Idaho facility, resulting in one employee fatality and injuries
to other employees. The incident severely damaged the facility’s primary waste-treatment building as well as surrounding waste
handling,  waste  storage,  maintenance  and  administrative  support  structures,  resulting  in  the  closure  of  the  entire  facility  that
remained in effect through January 2019. We resumed limited operations at our Grand View, Idaho facility in February 2019 and
have  continued  to  regain  additional  capabilities  throughout  2020.  We  are  nearing  completion  on  the  construction  of  a  new
treatment  building  and  supporting  infrastructure  with  assumed  resumption  of  full  capabilities  in  2021.  We  maintain  workers’
compensation  insurance,  business  interruption  insurance  and  liability  insurance  for  personal  injury,  property  and  casualty
damage. We believe that any potential third-party claims associated with the explosion, in excess of our deductibles, are expected
to be resolved primarily through our insurance policies. Although we carry business interruption insurance, a disruption of our
business caused by a casualty event may result in the loss of business, profits or customers during the time of such closure. As a
result, our insurance policies may not fully compensate us for these losses.

Federal, state and provincial regulations require financial assurance to cover the cost of final closure and post closure obligations
at  certain  operating  and  non-operating  disposal  facilities.  Acceptable  forms  of  financial  assurance  include  third  party  standby
letters  of  credit,  surety  bonds  and  insurance.  Alternatively,  we  may  be  required  to  collect  fees  from  waste  generators  to  fund
dedicated, state-controlled escrow or trust accounts during the operating life of the facility. Through December 31, 2020, we have
met  our  financial  assurance  requirements  through  insurance,  surety  bonds,  standby  letters  of  credit  and  self-funded  restricted
trusts. As of December 31, 2020, we have provided collateral of $5.6 million in funded trust agreements, $23.2 million in surety
bonds, issued $3.6 million in letters of credit for financial assurance and have insurance policies of approximately $117.8 million
for closure and post closure obligations (dedicated state-controlled closure and post closure funds provide financial assurance for
our  Washington  and  Nevada  facilities).  We  maintain  surety  bonds  for  closure  costs  associated  with  the  Blainville,  Québec,
Canada facility. Our lease agreement with the Province of Québec requires that the surety bond be maintained for 25 years after
the lease expires. As of December 31, 2020, we had $816,000 in commercial surety bonds dedicated for closure obligations at our
Blainville, Québec, Canada facility.

Primary  casualty  insurance  programs  generally  do not cover  accidental  environmental  contamination  losses. Our domestic  and
Canadian pollution liability  programs provide coverage for these types of losses in the aggregate  amount of $50.0 million and
25.0 million Canadian dollars per year, respectively, each subject to a $250,000 retention per occurrence. We also carry domestic
and Canadian contractors professional environmental liability insurance in the aggregate amount of $25.0 million and 5.0 million
Canadian dollars per year, respectively. The domestic program is subject to a $100,000 retention per occurrence and the Canadian
program is subject to a 25,000 Canadian dollars deductible per incident. We also have a combination of standalone RCRA site
specific policies with total aggregate limit of $68.0 million subject to a $250,000 retention.

For  nuclear  liability  coverage,  we  maintain  Facility  Form  and  Workers’  Form  nuclear  liability  insurance  provided  under  the
federal Price Anderson Act. This insurance covers the operations of our facilities, suppliers and transporters.

NRC carried a broad range of insurance coverage specific to its operations most of which were maintained through December 31,
2019. Duplicative NRC insurance policies and/or programs were absorbed or combined throughout 2020, except for a separate
and standalone property insurance program insuring the legacy NRC properties. This separate property policy provides coverage
for  real  and  personal  property,  business  interruption  and  equipment  with  a  loss  limit  of  approximately  $52.0  million  blanket
limits of insurance, $1.0 million for earthquake, flood, windstorm or hail and deductibles up to $25,000 depending on peril.

Marine  exposures  are  addressed  through  a  robust  marine  insurance  package  including  hull  and  machinery,  protection  and
indemnity, vessel pollution and other liability and excess insurance coverages with total loss limits of $150.0 million.

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International operations exposures are addressed under locally placed insurance policies compulsory in the specific countries of
operation and benefit from excess and difference in condition coverages with total loss limits of $36.0 million.

Significant Customers

No customer accounted for more than 10% of total revenue for the years ended December 31, 2020, 2019, or 2018.

Seasonal Effects

Seasonal  fluctuations  due  to  weather  and  budgetary  cycles  can  influence  the  timing  of  customer  spending  for  our  services.
Typically,  in  the  first  quarter  of  each  calendar  year  there  is  less  demand  for  our  services  due  to  weather-related  reduced
construction activities. While large, multi-year cleanup projects may continue in winter months, the pace of waste shipments may
be  slower,  or  stop  temporarily,  due  to  weather.  Market  conditions  and  federal  funding  decisions  generally  have  a  greater
influence on the business than seasonality.

Human Capital Resources

On December  31, 2020, we had approximately  3,600 employees,  of which approximately  400 in the United States and 100 in
Canada were represented by various labor unions.

Our employees are our most valued asset at US Ecology. We believe that inclusion, equity, and diversity is essential to providing
the best service to our customers. Through our Diversity and Inclusion Program, our team is focused on identifying our greatest
opportunities  to  attract  and  develop  diverse  and  high-performing  talent.  US  Ecology  pays  our  employees  what  we  believe  are
market  competitive  wages,  which  include  company-wide  incentive  programs  and  generous  benefits  to  enable  us  to  retain  and
develop employees into the future leaders of our industry.

We  care  about  our  employees’  experience  and  continuously  measure  and  improve  employment  practices.  Through  annual
surveys,  town-hall  meetings,  and  an  open-door  policy,  employees  influence  and  affect  change  in  our  policies,  programs,  and
practices. Our annual engagement survey measures our progress while collecting anonymous feedback to provide perspective on
what matters most to our people. This leads to better decisions about resource deployment, benefit programs, leader effectiveness,
and the overall employment experience. These continuous improvements attempt to ensure we provide best-in-class services to
our customers while enabling our business units to achieve their goals.

During fiscal 2020, in response to the COVID-19 pandemic, we implemented safety protocols and new procedures to protect our
employees, our subcontractors and our customers. These protocols include complying with social distancing and other health and
safety standards as required by federal, state and local government agencies, taking into consideration guidelines of the Centers
for  Disease  Control  and  Prevention  and  other  public  health  authorities.  In  addition,  we  modified  the  way  we  conduct  many
aspects of our business to reduce the number of in-person interactions. For example, we significantly expanded the use of virtual
interactions  in  all  aspects  of  our  business,  including  customer  facing  activities.  With  the  safety  of  our  employees  as  our  first
priority, we also rolled our 80 hours of incremental COVID-19 paid time off for each team member to address medical needs of
their  families  dealing  with this virus.  This program  was renewed  in 2021. Finally,  many of our administrative  and operational
functions during this time have required modification as well, including most of our administrative and support staff switching to
remote work where feasible.

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Executive Officers of Registrant

The following table sets forth the names, ages and titles, as well as a brief account of the business experience of each person who
was an executive officer of US Ecology as of December 31, 2020:

Name
Jeffrey R. Feeler
Simon G. Bell
Eric L. Gerratt
Steven D. Welling
Andrew P. Marshall

Age
51
50
50
62
54

Title

President and Chief Executive Officer
Executive Vice President and Chief Operating Officer
Executive Vice President, Chief Financial Officer and Treasurer
Executive Vice President of Sales and Marketing
Executive Vice President of Regulatory Compliance & Safety

Jeffrey R. Feeler was appointed President and Chief Executive Officer in May 2013. Mr. Feeler was previously the Company’s
senior executive as President and Chief Operating Officer from October 2012 to May 2013 and as the Company’s Vice President
and Chief Financial Officer from May 2007 to October 2012. He joined US Ecology in 2006 as Vice President, Controller, Chief
Accounting  Officer,  Treasurer  and  Secretary.  He  previously  held  financial  and  accounting  management  positions  with  MWI
Veterinary Supply, Inc., Albertson’s, Inc. and Hewlett-Packard Company. From 1993 to 2002, he held various accounting and
auditing positions for PricewaterhouseCoopers LLP. Mr. Feeler is a Certified Public Accountant and holds a BBA of Accounting
and a BBA of Finance from Boise State University.

Simon  G.  Bell was  appointed  Executive  Vice  President  and  Chief  Operating  Officer  in  November  2016.  Mr.  Bell  previously
served as the Company’s Executive Vice President of Operations, Environmental Services from June 2014 to November 2016.
From May 2013 to June 2014, he was Executive Vice President of Operations and Technology Development. From August 2007
to  May  2013,  he  was  Vice  President  of  Operations.  From  2005  to  August  2007,  he  was  Vice  President  of  Hazardous  Waste
Operations.  From  2002  to  2005,  he  was  our  Idaho  facility  General  Manager  and  Environmental  Manager.  His  20  years  of
industry  experience  includes  service  as  general  manager  of  a  competitor  disposal  facility  and  mining  industry  experience  in
Idaho, Nevada and South Dakota. He holds a BS in Geology from Colorado State University.

Eric  L.  Gerratt was  appointed  Executive  Vice  President,  Chief  Financial  Officer  and  Treasurer  in  May  2013.  Mr.  Gerratt
previously  served  as  the  Company’s  Vice  President,  Chief  Financial  Officer,  Treasurer  and  Chief  Accounting  Officer  from
October 2012 to May 2013. He joined US Ecology in August 2007 as Vice President and Controller. He previously held various
financial and accounting management positions at SUPERVALU, Inc. and Albertson’s, Inc. From 1997 to 2003, he held various
accounting and auditing positions for PricewaterhouseCoopers LLP. Mr. Gerratt is a Certified Public Accountant and holds a BS
in Accounting from the University of Idaho.

Steven D. Welling was appointed Executive Vice President of Sales and Marketing in May 2013. Mr. Welling previously served
as the Company’s Senior Vice President, Sales and Marketing from January 2010 to May 2013. He joined US Ecology in 2001
through  the  Envirosafe  Services  of  Idaho  acquisition.  He  previously  served  as  National  Accounts  Manager  for  Envirosource
Technologies and Western Sales Manager for Envirosafe Services of Idaho and before that managed new market development
and  sales  for  a  national  bulk  chemical  transportation  company.  Mr.  Welling  holds  a  BS  from  California  State  University-
Stanislaus.

Andrew P. Marshall was appointed Executive Vice President of Regulatory Compliance and Safety in May 2017. Mr. Marshall
previously  served  as  the  Company’s  Senior  Vice  President,  Regulatory  Compliance  and  Safety  from  December  2014  to  May
2017. He joined US Ecology in 2010 as Director of Environmental Compliance. He is a Professional Engineer with over 30 years
of experience assisting companies comply with environmental regulations, including past positions with Kleinfelder, a national
environmental  consulting  firm,  and  Boise  Cascade  Corporation.  Mr.  Marshall  holds  a  BS  in  Civil  Engineering  from  Seattle
University,  an  MS  in  Environmental  Engineering  from  Oregon  State  University,  and  an  MBA  from  Northwest  Nazarene
University.

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ITEM 1A. RISK FACTORS

Summary of Risk Factors

Below  is  a  summary  of  the  principal  factors  that  could  adversely  affect  our  business,  operations  and  financial  results.  This
summary does not address all of the risks that we face. Additional discussion of the risks summarized in this summary, and other
risks that we face, can be found below following this summary.

Risks Affecting All of Our Business

●

The  COVID-19  pandemic  and  resulting  adverse  economic  conditions  has  had  and  may  continue  to  have  a  negative
impact on our business, financial condition and results of operations.

● We may be unable to renew key contracts or perform under our contracts which could impact our profitability.
● Adverse economic conditions, as well as fluctuations in the commodity market related to the demand and production of

●

●

energy-related commodities, may harm our business.
Failure to comply with applicable U.S. or foreign laws, including environmental laws and regulations, could negatively
impact our business and result in us incurring material liability.
Existing  and future  regulations  related  to climate  change could  negatively  impact  our business and impose  additional
compliance requirements on us and our customers.

● Any accident at one of our facilities may result in significant litigation or the imposition of significant fines.
● We handle dangerous substances and failure to handle such substances properly or maintain an acceptable safety record

may have an adverse impact on our business.

● Our participation in multi-employer pension plans may subject us to liabilities that could materially adversely affect our

results of operations.

● We  may  experience  risks  from  our  international  operations,  including  the  risk  that  we  may  not  be  able  to  enforce
contracts in non-U.S. countries, we may be subject to restrictive activities by U.S. or foreign governments which could
limit our business activities and foreign exchange rates may fluctuate.

● Changes to U.S. tariff and import/export regulations may negatively affect the markets we serve and ultimately harm us.
● A change in, or revocation of, our classification as an OSRO could result in a loss of business.
● A cybersecurity incident could negatively impact our business and our relationships with customers.
●
● We may be unable to enter into arrangements with independent contractors who provide important emergency response

Loss of key employees, as well as a change or deterioration in our labor relations, could harm our business.

services to our customers on financially acceptable terms.

Additional Risks of Our Waste Solutions and Energy Waste Businesses

● Our energy waste business could be adversely affected by changes in laws regulating energy waste.
●

Lower  crude  oil  prices  may  adversely  affect  the  level  of  development  and  production  activity  of  energy  companies,
which could decrease the demand for our energy waste business.
If  we  are  unable  to  obtain  the  necessary  levels  of  insurance  and  financial  assurances  required  for  our  operations,  our
business would be adversely affected.

●

● We are subject to operating and litigation risks that may not be covered by insurance.
● A significant portion of our business depends upon non-recurring event cleanup projects over which we have no control.
If we are unable to obtain regulatory approvals and contracts for construction of additional disposal space by the time
●
our current disposal capacity is exhausted, our business would be adversely affected.

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●

If  we  are  unable  to  renew  our  operating  permits  or  lease  agreements  with  regulatory  bodies,  our  business  would  be
adversely affected.

● We  may  not  be  able  to  obtain  timely  or  cost-effective  transportation  services  which  could  adversely  affect  our

profitability, and an increase in transportation costs may reduce our earnings.

● The hazardous and radioactive waste industries in which we operate are subject to litigation risk, which could result in

significant liability.

Additional Risks of Our Field Services Business

● A significant portion of our Field Services segment depends upon the demand for cleanup of spills and other remedial

projects and regulatory developments over which we have no control.

Additional Risks of Completed and Potential Acquisitions

●

The  Company  may  be  unable  to  integrate  the  business  of  NRC  and  realize  the  benefits  (including  goodwill  or  other
intangible  assets)  of  the  NRC  Merger  and  we  continue  to  incur  substantial  expenses  in  connection  with  the  NRC
Merger.

● Acquisitions that we undertake could be difficult to integrate or disrupt our business, which would ultimately disrupt our

●

results of operations.
In the event that we undertake future acquisitions, we may not be able to successfully execute our acquisition strategy,
and the timing and number of acquisitions we pursue may cause volatility in our financial results.

Risks Relating to Our Capital Structure

● We may not be able or willing to pay future dividends.
●

●

Future stock issuances may adversely affect common stock ownership interest and rights in comparison with those of
other security holders.
The price of our common stock has fluctuated in the past and this may make it difficult for stockholders to resell shares
of common stock at times or may make it difficult for stockholders to sell shares of common stock at prices they find
attractive.

● Anti-takeover  provisions  in  our  organizational  documents  and  under  Delaware  law  may  impede  or  discourage  a

●

●

takeover, which could cause the market price of our common stock to decline.
The  sale  of  a  substantial  number  of  shares  of  our  common  stock  into  the  public  market  by  certain  stockholders  may
result in significant downward pressure on the price of our common stock and could affect your ability to realize the
current trading price of our common stock.
Fluctuations in price of our common stock may make it difficult for stockholders to resell shares of common stock or
may make it difficult for stockholders to sell shares of common stock at prices they find attractive.
There is no guarantee that our warrants will ever be in the money and they may expire worthless.

●
● Our indebtedness may limit the amount of cash flow available to invest in the ongoing needs of our business, and our

credit agreement restricts our ability to engage in certain corporate and financial transactions.

● Changes  in  the  method  of  determining  LIBOR,  or  the  replacement  of  LIBOR  with  an  alternative  reference  rate,  may

adversely affect interest expense related to our debt.

Risks Related to the Jones Act

● Our business would be adversely affected if we failed to comply with the Jones Act.
● Repeal,  amendment,  suspension  or  non-enforcement  of  the  Jones  Act  would  result  in  additional  competition  for  a

substantial portion of our services and could have a material adverse effect on our business.

● Our common stock is subject to restrictions on ownership by non-U.S. Citizens, which could require divestiture by non-

U.S. Citizen stockholders and could have a negative impact on its value.

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General Risk Factors

● Our market is highly competitive  and the failure to compete successfully could have a material  adverse effect on our

business, financial condition and results of operations.

● Adverse  economic  conditions,  government  funding  or  competitive  pressures  affecting  our  customers  could  harm  our

business.
If we fail to comply with applicable laws and regulations our business could be adversely affected.

●
● We could be subject to significant fines and penalties, and our reputation could be adversely affected, if our businesses,
or third parties with whom we have a relationship, were to fail to comply with U.S. or foreign laws or regulations.
● We  are  subject  to  complex  laws,  rules  and  regulations  relating  to  our  securities,  including  rules  and  regulations

promulgated by the SEC, that can adversely affect the cost, manner or feasibility of doing business.

● Our participation in multi employer pension plans may subject us to liabilities that could materially adversely affect our

liquidity, cash flows and results of operations.

● A cybersecurity incident could negatively impact our business and our relationships with customers.
● Unanticipated changes in our tax positions or adverse outcomes resulting from examination of our income tax returns

could adversely affect our results of operations.
Loss of key management or sales personnel could harm our business.

●

Risks Affecting All of Our Businesses

The COVID-19 pandemic and resulting adverse economic conditions has had and will continue to have a negative impact on
our business, financial condition and results of operations.

In December 2019, COVID-19 began spreading around the world. The spread of COVID-19 has resulted in temporary closures of
many  corporate  offices,  retail  stores,  and  manufacturing  facilities  and  factories  around  the  world,  including,  starting  in  March
2020,  the  United  States.  Local,  state  and  federal  and  numerous  non-U.S.  governmental  authorities  have  imposed  travel
restrictions, business closures and other quarantine measures, many of which remain in effect on the date of this Annual Report
on Form 10-K. The COVID-19 pandemic has also decreased industrial demand for, exacerbated downward pressures on, crude
oil and natural gas.

Prolonged  unfavorable  economic  conditions,  and  any  resulting  recession  or  slowed  economic  growth,  has  resulted  and  may
continue to result in lower demand for certain of our services as well as the inability of various customers, contractors, suppliers
and other business partners to fulfill their obligations. For example, declines in the price of oil and natural gas have adversely
impacted energy companies, which have caused them to reduce capital expenditures, which has and is expected to continue to
adversely affect our energy waste business. In addition, certain of our customers have been, and may in the future be, required to
close down or operate at a lower capacity, which may, as a result, adversely impact our business in the short term and may in the
future materially adversely affect our business, financial condition and results of operations. There can be no assurance that any
decrease in revenues resulting from the COVID-19 pandemic will return to previous levels in the future. While we cannot predict
the  ultimate  impact  of  the  COVID-19  pandemic  and  while  we  have  taken  certain  measures  to  strengthen  our  resiliency  to  the
COVID-19  pandemic,  we  expect  our  financial  results  to  continue  to  be  adversely  impacted.  We  also  continue  to  monitor  the
disruption in capital markets caused by the COVID-19 pandemic. If capital markets conditions deteriorate and we need to access
the capital markets there can be no assurance that we will be able to obtain such financing on commercially reasonable terms or
at all.

Despite  our  efforts  to  manage  the  effects  of  the  COVID-19 pandemic,  their  ultimate  impact  is  highly  uncertain  and  subject  to
change, and also depends on factors beyond our knowledge or control, including the duration and severity of this outbreak as well
as  actions  taken  by  governments  and  private  parties  to  contain  its  spread  and  mitigate  its  public  health  effects.  We  do not  yet
know  the  full  extent  of  the  potential  impact  to  our  business  or  the  global  economy  as  a  whole,  which  could  be  significant.  In
addition, we cannot predict the ultimate impact that the COVID-19 pandemic will have on our

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customers, suppliers, vendors, and other business partners, and each of their financial conditions. However, any material effect on
these parties could adversely impact us.

The COVID-19 pandemic could cause material disruptions to our business and operations in the future as a result of, among other
things, quarantines, cyber-attacks, worker absenteeism as a result of illness or other factors, social distancing measures and other
travel,  health-related,  business  or  other  restrictions.  If  a  significant  percentage  of  our  workforce  is  unable  to  work,  including
because  of  illness  or  travel  or  government  restrictions  in  connection  with  the  pandemic,  our  operations  may  be  negatively
affected.  An  extended  period  of  remote  work  arrangements  could  also  increase  operational  risks,  including  but  not  limited  to
cybersecurity risks, which could impair our ability to manage our business. Refer to “A cybersecurity incident could negatively
impact our business and our relationships with customers” risk discussed under General Risk Factors below.

For similar reasons, the COVID-19 pandemic may similarly adversely impact our suppliers, including the suppliers of personal
protective  equipment  for  our  employees  and  contractors.  Depending  on  the  extent  and  duration  of  all  of  the  above-described
effects on our business and operations and the business and operations of our suppliers, our costs could increase, including our
costs to address the health and safety of personnel, and our ability to obtain certain supplies or services could be curtailed.

The impact of the COVID-19 pandemic may also aggravate other risks described herein, which could materially adversely affect
our business, financial condition, results of operations (including revenues and profitability) and/or stock price. In addition, the
COVID-19 pandemic may also affect our operating or financial results in a manner that is not presently known to us or that we do
not consider to present significant risks to operations.

The completion of, loss of or failure to renew one or more significant contracts could adversely affect our profitability.

We provide disposal and transportation  services to customers on discrete Event Business projects (non-recurring  project-based
work)  which  vary  widely  in  size,  duration  and  unit  pricing.  Some  of  these  multi-year  projects  can  account  for  a  significant
portion of our revenue and profit. The replacement of Event Business revenue and earnings depends on multiple factors, many of
which are outside of our control including, but not limited to, general and industry-specific economic conditions, capital in the
commercial  credit  markets,  general  level  of  government  funding  on  environmental  matters,  real  estate  development  and  other
industrial investment opportunities. Our inability to replace the revenue from Event Business projects with new business could
result in a material adverse effect on our financial condition and results of operations.

Failure to perform under our contracts may adversely harm our business.

Certain  contracts  require  us  to  meet  specified  performance  criteria.  Our  ability  to  meet  these  criteria  requires  that  we  expend
significant resources. If we or our subcontractors are unable to perform as required, we could be subject to substantial monetary
penalties and/or loss of the affected contracts which may adversely affect our business.

Fluctuations in the commodity market related to the demand and production of oil, gas and other energy-related commodities
may affect our business, financial position, results of operations and cash flows.

Declines in the production level of oil, gas and other energy-related  commodities could have significant adverse effects on us.
Commodity demand fluctuates for several reasons, including, but not limited to, changes in market and economic conditions, the
impact  of  weather,  levels  of  domestic  and  international  production,  domestic  and  foreign  governmental  regulation,  national
protectionism  policies  and  trade  disputes.  Volatility  of  commodity  demand,  which  may  lead  to  a  reduction  in  production  or
supply of the commodity, may negatively impact the demand for our services. A decline in the demand for these services may
have a material adverse effect on our business, financial position, results of operations and cash flows.

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We  could  incur  liability,  including  under  environmental  laws,  rules  and  regulations,  in  connection  with  providing  spill
response services.

We may incur increased legal fees and costs in connection with providing spill response services. Although the services provided
by us are generally exempt in the United States from liability under the CWA, this exemption might not apply to our own actions
and omissions in providing spill response services if we are found to have been grossly negligent or to have engaged in willful
misconduct, or if we have failed to provide these services consistent with applicable regulations and directives under the CWA.
In addition, the exemption under the federal CWA would not protect a company against liability for personal injury or wrongful
death, or against prosecution under other federal or state laws. Although most of the states within the United States in which we
provide  services  have  adopted  similar  exemptions,  several  states  have  not.  If  a  court  or  other  applicable  authority  were  to
determine that we do not benefit from federal or state exemptions from liability in providing emergency response services, we
could be liable, together with the local contractor and the responsible party, for any resulting damages, including damages caused
by others. In the international  market, we do not benefit from the spill response liability protection provided by the CWA and
therefore are subject to the liability terms and conditions negotiated with our international clients.

If  Congress  repeals  the  exemption  to  liability  for  responders  that  is  discussed  above,  or  otherwise  scales  back  the  protections
afforded to contractors thereunder, there may be increased exposure for remediation work and the cost for securing insurance for
such  work  may  become  prohibitively  expensive.  In  addition,  more  generally  Congress  could  increase  or  remove  the  limits  of
liability  currently  in  place  under  OPA  90  for  facilities  and  vessels.  Without  affordable  insurance  and  appropriate  legislative
regulation limiting liability, drilling, exploration, remediation and further investment in oil and gas exploration in the U.S. Gulf
of Mexico may be discouraged and thus reduce the demand for our services.

We could incur liability under environmental laws, rules and regulations in connection with providing waste disposal services.

Environmental  laws  and  regulations  impose  liability  and  responsibility  on  present  and  former  owners,  operators  or  users  of
facilities and sites for contamination at such facilities and sites without regard to fault or knowledge of contamination. In the past,
practices  have  resulted  in  releases  of  regulated  materials  at  and  from  certain  of  our  facilities,  or  the  disposal  of  regulated
materials at third-party sites, which require investigation and remediation and may potentially result in claims of personal injury,
property damage and damages to natural resources. In addition, we occasionally evaluate various alternatives with respect to our
facilities,  including  possible  dispositions  or  closures.  Investigations  undertaken  in  connection  with  these  activities  may  lead  to
discoveries of contamination that must be remediated, and closures of facilities might trigger compliance requirements that are
not  applicable  to  operating  facilities.  We  are  currently  conducting  remedial  activities  at  certain  of  our  facilities  and  paying  a
portion of the remediation costs at certain sites owned by third parties. Based on available information, we believe these remedial
activities  will  not  result  in  a  material  adverse  effect  on  our  business,  financial  position,  result  of  operations  and  cash  flows.
However, these activities or the discovery of previously unknown conditions could result in material costs.

In addition,  we are  required  to obtain governmental  permits  to provide  our services,  operate  our facilities,  including all  of our
landfills,  and  expand  our  operations.  Although  we  are  committed  to  compliance  and  safety,  we  may  not,  either  now  or  in  the
future,  be  in  full  compliance  at  all  times  with  such  laws,  rules  and  regulatory  requirements  or  be  able  to  renew  or  procure
governmental permits. As a result, we could be required to incur significant costs to maintain or improve our compliance with
such requirements. Moreover, failure to comply with applicable laws, rules and regulations may also result in administrative and
civil penalties, criminal sanctions or the suspension or termination of our operations.

From time to time, we have paid fines or penalties in governmental environmental enforcement proceedings, usually involving
our waste treatment, storage and disposal facilities. Although none of these fines or penalties has had a material adverse effect
upon  us,  we  might  in  the  future  be  required  to  make  substantial  expenditures  as  a  result  of  governmental  proceedings  which
would have a negative impact on our earnings. Furthermore, regulators have the power to suspend or revoke permits or licenses
needed for operation of our plants, equipment and vehicles based on, among other factors, our compliance record. Suspension or
revocation of permits or licenses would impact our operations and could have a material impact on our financial results.

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Existing or future laws and regulations related to greenhouse gases and climate change could have an impact on our business
and may result in additional compliance obligations on us and our customers.

Changes in environmental requirements related to greenhouse gases and climate change may impact demand for our services. For
example, oil and natural gas exploration and production may decline as a result of environmental requirements, including land
use policies responsive to environmental concerns. However, increased environmental requirements could also increase demand
for our services. Local, state and federal agencies have been evaluating climate-related legislation and other regulatory initiatives
that would restrict emissions of greenhouse gases in areas in which we conduct business. To a certain extent our business depends
on the level of activity in the oil and natural gas industry, existing or future laws and regulations related to greenhouse gases and
climate change, including incentives to conserve energy or use alternative energy sources, could have an impact on our business
if such laws or regulations reduce demand for oil and natural gas.

An accident at any one of our facilities may result in significant litigation or the imposition of fines as a result of regulatory
investigations, as well as the loss of business, profits or customers, which may not be fully covered by our insurance policies.

On November 17, 2018, an explosion occurred at our Grand View, Idaho facility, resulting in one employee fatality and injuries
to other employees. The incident severely damaged the facility’s primary waste-treatment building as well as surrounding waste
handling,  waste  storage,  maintenance  and  administrative  support  structures,  resulting  in  the  closure  of  the  entire  facility  that
remained in effect through January 2019. We resumed limited operations at our Grand View, Idaho facility in February 2019 and
regained additional capabilities throughout the remainder of 2020. On January 10, 2020, we entered into a settlement agreement
with  OSHA  settling  a  complaint  made  by  OSHA  relating  to  the  incident  for  $50,000.  On  January  28,  2020,  the  Occupational
Safety and Health Review Commission issued an order terminating the proceeding relating to such OSHA complaint. We have
not otherwise been named as a defendant in any third-party action relating to the incident. We maintain workers’ compensation
insurance, business interruption insurance and liability insurance for personal injury, property and casualty damage. We believe
that  any  potential  third-party  claims  associated  with  the  explosion,  in  excess  of  our  deductibles,  are  expected  to  be  resolved
primarily through our insurance policies. Although we carry business interruption insurance, a disruption of our business caused
by a casualty event, including the full and partial closure of our Grand View, Idaho facility, may result in the loss of business,
profits or customers during the time of such closure. Accordingly, our insurance policies may not fully compensate us for these
losses.

Our  business  requires  the  handling  of  dangerous  substances.  Improper  handling  of  such  substances  could  result  in  an
adverse impact on our financial condition and results of operations.

We are subject to unexpected occurrences related, or unrelated, to the routine handling of dangerous substances. A fire or other
incident could impair the ability of one or more facilities to continue to perform normal operations, which could have a material
adverse impact on our financial condition and results of operations. Improper handling of these substances could also violate laws
and regulations resulting in fines and/or suspension of operations.

Failure to maintain an acceptable safety record may have an adverse impact on our ability to retain and acquire customers.

Our current and prospective customers consider safety and reliability a primary concern in selecting a service provider. We must
maintain a record of safety and reliability that is acceptable to our customers. Should this not be achieved, our ability to retain
current customers and attract new customers may be adversely affected.

We may experience risks from our international operations.

Our  ability  to  compete  in  the  international  market  may  be  adversely  affected  by  foreign  government  regulations  that  favor  or
require  the  awarding  of  contracts  to  local  competitors,  or  that  require  non-U.S.  Citizens  to  employ  citizens  of,  or  purchase
supplies from, a particular jurisdiction. Further, our foreign subsidiaries may face governmentally imposed restrictions on their
ability  to  transfer  funds  to  their  parent  company.  Activity  outside  the  United  States  involves  additional  risks,  including  the
possibility of:

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● United States embargoes or restrictive actions by U.S. and foreign governments that could limit our ability to provide

services in foreign countries;

●

●

●

●

●

●

●

●

●

●

●

●

●

a change in, or the imposition of, withholding or other taxes on foreign income, tariffs or restrictions on foreign trade
and investment;

limitations on the repatriation of earnings or currency exchange controls and import/export quotas;

local cabotage and local ownership laws and requirements;

nationalization, expropriation, asset seizure, blockades and blacklisting;

limitations in the availability, amount or terms of insurance coverage;

loss of contract rights and inability to enforce contracts;

political instability, war and civil disturbances or other risks that may limit or disrupt markets, such as terrorist attacks,
piracy and kidnapping;

the impact of public health epidemics like the coronavirus which originated in the Wuhan region of China;

fluctuations in currency exchange rates, hard currency shortages and controls on currency exchange that affect demand
for our services and profitability;

potential noncompliance with a wide variety of laws and regulations, such as the FCPA, and similar non-U.S. laws and
regulations, including the U.K. Bribery Act 2010;

labor strikes and volatility in labor costs;

changes in general economic and political conditions; and

difficulty in staffing and managing widespread operations.

In  addition,  to  the  extent  that  we  use  a  non-U.S.  currency  as  a  functional  currency  in  a  particular  territory,  we  are  exposed  to
fluctuations  in  the  value  of  such  currency.  In  addition,  risks  related  to  our  activities  outside  of  the  United  States  include  the
repatriation of cash to the United States and the imposition of additional taxes on our foreign income.

Moreover,  our  business  is  also  impacted  by  the  negotiation  and  implementation  of  free  trade  agreements  between  the  United
States and other countries. Such agreements can reduce barriers to international trade and thus the cost of conducting business
overseas. For instance, the United States reached a new trilateral trade agreement with the governments of Canada and Mexico –
the United States-Mexico-Canada Agreement (“USMCA”) – to replace the North American Free Trade Agreement (“NAFTA”).
The USMCA came into effect on July 1, 2020. If any of the countries withdraws from USMCA, our cost of doing business within
the three countries could increase.

Any  of  the  foregoing  or  other  factors  associated  with  doing  business  abroad  could  adversely  affect  our  business,  financial
condition and results of operations.

Our financial results could be adversely affected by foreign exchange fluctuations.

We operate in the United States, Canada, the United Kingdom, Mexico, Europe, the Middle East, and Africa but report revenue,
costs and earnings in U.S. dollars. In fiscal 2020, we recorded approximately 11% of our revenues outside of the United States.
Exchange rates between the U.S. dollar and local currencies are likely to fluctuate from period to period. Because our financial
results are reported in U.S. dollars, we are subject to the risk of non-cash translation losses for

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reporting purposes. If we continue to expand our international operations, we will conduct more transactions in currencies other
than the U.S. dollar. To the extent that foreign revenue and expense transactions are not denominated in the local currency, we
are further subject to the risk of transaction losses. We have not entered into derivative instruments to offset the impact of foreign
exchange  fluctuations.  Fluctuations  in  foreign  currency  exchange  rates  could  have  a  material  adverse  effect  on  our  financial
condition and results of operations.

Changes to U.S. tariff and import/export regulations may have a negative effect on the markets and industries we serve and,
in turn, harm us.

Recently,  there  have  been  significant  changes  to  U.S.  trade  policies,  treaties  and  tariffs,  which  have  resulted  in  uncertain
economic  and  political  conditions  that  have  made  it  difficult  for  us  and  our  customers  to  accurately  forecast  and  plan  future
business  activities.  For  example,  the  U.S.  has  imposed  tariffs  on  certain  products  imported  into  the  U.S.  from  China,  the
European  Union  and  other  countries,  and  could  impose  additional  tariffs  or  trade  restrictions.  Such  changes  to  U.S.  policies
related to global trade and tariffs have resulted in uncertainty surrounding the future of the global economy and have resulted in
certain retaliatory trade measures and tariffs implemented by other countries. These developments, or the perception that any of
them could occur, may have a material adverse effect on global economic conditions and the stability of global financial markets,
and may significantly reduce global trade and, in particular, trade between the impacted nations and the United States. Any of
these factors could depress economic activity and have a material adverse effect on the business and financial condition of our
customers, which in turn could negatively impact us.

A change in, or revocation of, our classification as an OSRO could result in a loss of business.
NRC, a wholly owned subsidiary of the Company, is classified by the USCG as an OSRO. The USCG classifies OSROs based on
their  overall  ability  to  respond  to  various  types  and  sizes  of  oil  spills.  USCG-classified  OSROs  have  a  competitive  advantage
over non-classified service providers because customers of a classified OSRO may cite classified OSROs in their response plans
in  lieu  of  listing  their  oil  spill  response  resources  in  filings  with  the  USCG.  A  loss  of  our  classification  or  changes  in  the
requirements for classification could eliminate or diminish our ability to provide customers with this exemption. If this happens,
our Field & Industrial Service segment could lose customers.

A change or deterioration in labor relations could disrupt our business or increase costs, which could have a material adverse
effect on our business, financial condition and results of operations.

The  Company  is  a  party  to  collective  bargaining  agreements  covering  approximately  500,  or  approximately  14%,  of  our
employees. While we believe the Company will maintain good working relations with its employees on acceptable terms, there
can  be  no  assurance  that  we will  be  able  to  negotiate  the  terms  of  future  agreements  in  a  manner  acceptable  to  the  Company.
Potential work disruptions from labor disputes may disrupt our businesses and adversely affect our financial condition and results
of operations.

We rely on third-party contractors to provide important emergency response services to our customers.

We rely on independent contractors to provide services and support to our customers. While the use of independent contractors
expands  the  reach  and  customer  base  for  our  services,  the  maintenance  and  administration  of  these  relationships  is  costly  and
time consuming. If we do not enter into arrangements with these independent contractors on financially acceptable terms, these
relationships may have a material adverse effect on our business, financial position, results of operations and cash flows.

Additional Risks of Our Waste Solutions and Energy Waste Business

Our energy waste business could be adversely affected by changes in laws regulating energy waste.

We  believe  that  the  demand  for  our  energy  waste  services  is  directly  related  to  the  regulation  of  energy  waste.  In  particular,
RCRA, which governs the disposal of solid and hazardous waste, currently exempts certain energy wastes from classification as
hazardous wastes. In recent years, proposals have been made to rescind this exemption from RCRA. If the exemption covering
energy wastes is repealed or modified, or if the regulations interpreting the rules regarding the

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treatment  or  disposal  of  this  type  of  waste  were  changed,  our  operations  could  face  significantly  more  stringent  regulations,
permitting requirements, and other restrictions, which could have a material adverse effect on our business.

In addition, if new federal, state, provincial or local laws or regulations that significantly restrict hydraulic fracturing are adopted,
such  legal  requirements  could  result  in  delays,  eliminate  certain  drilling  and  injection  activities  and  make  it  more  difficult  or
costly for our customers to perform fracturing. Any such regulations limiting or prohibiting hydraulic fracturing could reduce our
customers’ oil and natural gas exploration and production activities and, therefore, adversely affect our business. Such laws or
regulations could also materially increase our costs of compliance and doing business by more strictly regulating how hydraulic
fracturing  wastes  are  handled  or  disposed.  Conversely,  any  loosening  of  existing  federal,  state,  provincial  or  local  laws  or
regulations regarding how such wastes are handled or disposed could adversely impact demand for our services.

Lower crude oil prices may adversely affect the level of exploration, development and production activity of energy companies
and the demand for our energy waste services.

Lower crude oil prices and the volatility of such prices may affect the level of investment and the amount of linear feet drilled in
the basins where we operate, as it may impact the ability of energy companies to access capital on economically advantageous
terms  or  at  all.  In  addition,  energy  companies  may  elect  to  decrease  investment  in  basins  where  the  returns  on  investment  are
inadequate or uncertain due to lower crude oil prices or volatility in crude oil prices. Such reductions in capital spending would
negatively impact energy waste generation and therefore the demand for our services. Further, we cannot provide assurances that
higher crude oil prices will result in increased capital spending and linear feet drilled by our customers in the basins where we
operate.

If we are unable to obtain at a reasonable cost or under reasonable terms and conditions the necessary levels of insurance and
financial assurances required for operations, our business and results of operations would be adversely affected.

We  are  required  by  law,  license,  permit  and  prudence  to  maintain  various  insurance  instruments  and  financial  assurances.  We
carry a broad range of insurance coverage, including general liability, automobile liability, real and personal property, workers
compensation,  directors  and  officers  liability,  environmental  impairment  liability,  business  interruption  and  other  coverage
customary  for  a  company  of  our  size  in  our  business.  We  purchase  primary  property,  casualty  and  excess  liability  policies
through traditional third-party insurance carriers to mitigate risk of loss. We are self-insured for employee healthcare coverage.
Stop loss insurance is carried covering liability on claims in excess of $300,000 per individual. Accrued costs related to the self-
insured healthcare coverage were $3.3 million and $1.0 at December 31, 2020 and 2019, respectively. If our insurers were unable
to meet their obligations, or our own obligations for claims were more than expected, there could be a material adverse effect to
our financial condition and results of operation.

Through  December  31,  2020,  we  have  met  our  financial  assurance  requirements  through  a  combination  of  insurance  policies,
commercial surety bonds and trust funds.  We continue to use self-funded trust accounts for our post closure obligations at our
U.S. non-operating sites and utilize closure and post-closure insurance to address any balance deficits in these accounts. We use
commercial surety bonds for our Canadian operations and for our Texas energy waste landfills. We currently have in place all
financial  assurance  instruments  necessary  for  our  operations.  While  we  expect  to  continue  renewing  these  policies  and  surety
bonds, if we were unable to obtain adequate closure, post closure or environmental insurance, bonds or other instruments in the
future, any partially or completely uninsured claim against us, if successful and of sufficient magnitude, could have a material
adverse effect on our results of operations and cash flows. Additionally, continued access to casualty and pollution legal liability
insurance  with  sufficient  limits,  at  acceptable  terms,  is  important  to  obtaining  new  business.  Failure  to  maintain  adequate
financial assurance could also result in regulatory action including early closure of facilities. As of December 31, 2020, we had
provided  collateral  of  $5.6  million  in  funded  trust  agreements,  $23.2  million  in  surety  bonds,  issued  $3.6  million  in  letters  of
credit  for  financial  assurance  and  have  insurance  policies  of  approximately  $117.8  million  for  closure  and  post  closure
obligations  at  covered  U.S.  operating  facilities.  As  of  December  31,  2020,  we  have  $816,000  in  commercial  surety  bonds
dedicated for closure obligations at our Blainville, Québec, Canada facility.

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While  we  believe  we  will  be  able  to  renew  and  maintain  all  our  insurance  and  requisite  financial  assurance  policies  at  a
reasonable  cost,  premium  and  collateral  requirements  may  materially  increase.  Such  increases  could  have  a  material  adverse
effect on our financial condition and results of operations.

We are subject to operating and litigation risks that may not be covered by insurance.

Our  business  operations  are  subject  to  all  of  the  operating  hazards  and  risks  normally  incidental  to  the  handling,  storage  and
disposal of combustible and other hazardous products. These risks could result in substantial losses due to personal injury and/or
loss of life, and severe damage and destruction of property and equipment arising from explosions or other catastrophic events.
As  a  result,  we  may  become  a  defendant  in  legal  proceedings  and  litigation  arising  in  the  ordinary  course  of  business.
Additionally, environmental contamination could result in future legal proceedings. There can be no assurance that our insurance
coverage  will  be  adequate  to  protect  us  from  all  material  expenses  related  to  pending  and  future  claims  or  that  such  levels  of
insurance would be available in the future at economical prices, as described above.

Although we carry business interruption insurance, a disruption of our business caused by a casualty event, including the full and
partial closure of our Grand View, Idaho facility (as described herein), may result in the loss of business, profits or customers
during the time of such closure. As such, our insurance policies may not fully compensate us for these losses.

A significant portion of our business depends upon non-recurring event cleanup projects over which we have no control.

A significant portion of our disposal revenue is attributable to discrete Event Business which varies widely in size, duration and
unit pricing. For the year ended December 31, 2020, approximately 27% of our T&D revenue was derived from Event Business
projects.  The  one-time  nature  of  Event  Business,  diverse  spectrum  of  waste  types  received  and  widely  varying  unit  pricing
necessarily  creates  variability  in  revenue  and  earnings.  This  variability  may  be  influenced  by  general  and  industry-specific
economic  conditions,  funding  availability,  changes  in  laws  and  regulations,  government  enforcement  actions  or  court  orders,
public  controversy,  litigation,  weather,  commercial  real  estate,  closed  military  bases  and  other  project  timing,  government
appropriation  and  funding  cycles  and  other  factors.  This  variability  can  cause  significant  quarter-to-quarter  and  year-to-year
differences in revenue, gross profit, gross margin, operating income and net income. Also, while we pursue many large projects
months or years in advance of work performance, both large and small cleanup project opportunities routinely arise with little or
no  prior  notice.  These  market  dynamics  are  inherent  to  the  waste  disposal  business  and  are  factored  into  our  projections  and
externally  communicated  business  outlook  statements.  Our  projections  combine  historical  experience  with  identified  sales
pipeline opportunities, new or expanded service line projections and prevailing market conditions. A reduction in the number and
size of new cleanup projects won to replace completed work could have a material adverse effect on our financial condition and
results of operations.

If we are unable to obtain regulatory approvals and contracts for construction of additional  disposal space by the time our
current disposal capacity is exhausted, our business would be adversely affected.

Construction of new disposal capacity at our operating disposal facilities beyond currently permitted capacity requires state and
provincial regulatory agency approvals. Administrative processes for such approval reviews vary. There can be no assurance that
we will be successful in obtaining future expansion approvals in a timely manner or at all. If we are not successful in receiving
these  approvals,  our  disposal  capacity  could  eventually  be  exhausted,  preventing  us  from  accepting  additional  waste  at  an
affected facility. This would have a material adverse effect on our business.

If we are unable to renew our operating permits or lease agreements with regulatory bodies, our business would be adversely
affected.

Our  facilities  operate  using  permits  and  licenses  issued  by  various  regulatory  bodies  at  various  state,  provincial  and  federal
government levels. In addition, three of our facilities operate on land that is leased from government agencies. Failure to renew
our  permits  and  licenses  necessary  to  operate  our  facilities  or  failure  to  renew  or  maintain  compliance  with  our  site  lease
agreements would have a material adverse effect on our business. There can be no assurance we will continue to be successful in
obtaining  timely  permit  applications  approval,  maintaining  compliance  with  our  lease  agreements  and  obtaining  timely  lease
renewals.

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We may not be able to obtain timely or cost-effective transportation services which could adversely affect our profitability.

Revenue at each of our facilities is subject to potential risks from disruptions in rail or truck transportation services relied upon to
deliver waste to our facilities. Increases in fuel or labor costs, shortages of qualified drivers and unforeseen events such as labor
disputes, public health pandemics, severe weather, natural disasters and other acts of God, war or terror could prevent or delay
shipments and reduce both volumes and revenue. Our rail transportation service agreements with our customers generally allow
us to pass on fuel surcharges assessed by the railroads to such customers. This may decrease or eliminate our exposure to fuel
cost increases. Transportation services may be limited by economic conditions, including increased demand for rail or trucking
services, resulting in periods of slower service to the point that individual customer needs cannot be met. No assurance can be
given that we can procure transportation services in a timely manner at competitive rates or pass through fuel cost increases in all
cases. Such factors could also limit our ability to achieve revenue and earnings objectives.

The hazardous and radioactive waste industries in which we operate are subject to litigation risk.

The  handling  of  radioactive,  PCBs  and  hazardous  material  subjects  us  to  potential  liability  claims  by  employees,  contractors,
property owners, neighbors and others. There can be no assurance that our existing liability insurance is adequate to cover claims
asserted  against  us  or  that  we  will  be  able  to  maintain  adequate  insurance  in  the  future.  Adverse  rulings  in  judicial  or
administrative proceedings could also have a material adverse effect on our financial condition and results of operations.

Additional Risks of Our Field Services Business

A significant portion of our Field Services segment depends upon the demand for cleanup of spills and other remedial projects
and regulatory developments over which we have no control.

A  significant  portion  of  our  Field  Services  segment  consists  of  remediation,  recycling,  industrial  cleaning  and  maintenance,
transportation, total waste management, technical services, and emergency response services. Demand for these services can be
affected  by the commencement  and completion  of  cleanup  of  major  spills  and other  events,  customers’  decisions  to undertake
remedial projects, seasonal fluctuations due to weather and budgetary cycles influencing the timing of customers’ spending for
remedial activities, the timing of regulatory decisions relating to hazardous waste management projects, changes in regulations
governing  the  management  of  hazardous  waste,  changes  in  the  waste  processing  industry  towards  waste  minimization  and  the
propensity  for  delays  in  the  demand  for  remedial  services,  and  changes  in  governmental  regulations  relevant  to  our  diverse
operations. We do not control such factors and, as a result, our revenue and income can vary from quarter to quarter or year to
year, and past financial performance may not be a reliable indicator of future performance.

Additional Risks of Completed and Potential Acquisitions

The Company may be unable to integrate successfully the business of NRC and realize the anticipated benefits of the NRC
Merger

On  November  1,  2019,  the  Company  closed  the  NRC  Merger.  The  success  of  the  NRC  Merger  depends,  in  large  part,  on  the
ability of the Company to realize the anticipated benefits, including cost savings, from combining the businesses of the Company
and NRC. Prior to the acquisition of NRC, the Company had never pursued an acquisition of comparable size or complexity. To
realize these anticipated benefits, the businesses of the Company and NRC must be integrated successfully. This integration is
complex  and  time  consuming.  The  failure  to  successfully  integrate  and  manage  the  challenges  presented  by  the  integration
process  may  result  in  the  combined  company  not  fully  achieving  the  anticipated  benefits  of  the  NRC  Merger.  Any  failure  to
timely  realize  these  anticipated  benefits  would  have  a  material  adverse  effect  on  our  business,  operating  results,  and  financial
condition,  and  could  also  have  a  material  and  adverse  effect  on  the  trading  price  or  trading  volume  of  our  common  stock.
Potential difficulties the Company may encounter as part of the integration process, many of which may be beyond the control of
management, include the following:

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●

●

●

●

●

●

●

●

the inability to successfully combine the businesses of the Company and NRC in a manner that permits the combined
company to achieve the full synergies anticipated to result from the NRC Merger;

complexities  and  unanticipated  issues  associated  with  managing  the  combined  businesses,  including  the  challenge  of
integrating  complex  systems,  technology,  networks,  financial  procedures,  communications  programs  and  other  assets,
procedures or policies of each of the companies in a seamless manner that minimizes any adverse impact on customers,
suppliers and other constituencies;

coordinating geographically separated organizations, systems and facilities;

difficulties in managing a larger combined company, addressing possible differences in business backgrounds, corporate
cultures, maintaining employee morale and management philosophies and retaining key personnel;

unanticipated changes in applicable laws and regulations;

integrating the workforces of the two companies while maintaining focus on achieving strategic initiatives;

the possibility of faulty assumptions underlying expectations regarding the integration process;

potential unknown liabilities and unforeseen increased or new expenses, delays or regulatory conditions associated with
the NRC Merger;

●

consolidating corporate and administrative infrastructures and eliminating duplicative operations; and

● managing tax costs or inefficiencies associated with integrating the operations of the combined company

In  addition,  US  Ecology  and  NRC  operated  independently  prior  to  the  closing  of  the  NRC  Merger.  It  is  possible  that  the
integration process could result in:

●

●

●

●

●

ongoing diversion of the attention of each company’s management and resources from other strategic opportunities and
from operational matters;

latent impacts resulting from the diversion of the Company’s management team from ongoing business concerns as a
result of the devotion of management’s attention to the integration process;

disruption of existing relationships with customers and suppliers;

an  interruption  of,  or  a  loss  of  momentum  in,  the  activities  and  business  operations  of  the  Company,  which  could
seriously harm the results of operations; and

inconsistencies in standards, controls, procedures and policies, any of which could adversely affect the Company ability
to  maintain  relationships  with  customers,  suppliers,  employees  and  other  constituencies  or  the  Company’s  ability  to
achieve the anticipated benefits of the NRC Merger, or which could adversely affect the business and financial results of
the Company.

The Company has incurred, and expects to continue to incur, substantial expenses related to the integration of the Company
and NRC.

The  Company  expects  to  incur  substantial  expenses  in  connection  with  the  integration  of  the  Company  and  NRC. There  are  a
large  number  of  processes,  policies,  procedures,  operations,  technologies  and  systems  that  must  be  integrated,  including
purchasing, accounting, finance and payroll. While the Company has assumed that a certain level of expenses would be incurred,
there are many factors beyond its control that could affect the total amount or the timing of the

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integration expenses. Moreover, many of the expenses that will be incurred are, by their nature, difficult to estimate accurately.
These expenses could, particularly in the near term, exceed the savings that the combined company expects to achieve from the
elimination of duplicative expenses and the realization of economies of scale and cost savings.
Acquisitions  that  we  undertake  could  be  difficult  to  integrate,  disrupt  our  business,  dilute  stockholder  value  and  adversely
affect our results of operations.

In addition to the risks listed above relating to the NRC Merger, acquisitions by the Company may involve multiple other risks.
Our inability to successfully integrate an acquired business could have a material adverse effect on our financial condition and
results of operations. These risks include but are not limited to:

●

●

●

●

●

●

●

●

●

●

failure of the acquired company to achieve anticipated revenues, earnings or cash flows;

assumption of liabilities, including those related to environmental matters, that were not disclosed to us or that exceed
our estimates;

problems integrating the purchased operations with our own, which could result in substantial costs and delays or other
operational, technical or financial problems;

potential compliance issues relating to the protection of health and the environment, compliance with securities laws and
regulations, adequacy of internal controls and other matters;

diversion of management’s attention or other resources from our existing business;

risks associated with entering markets or product/service areas in which we have limited prior experience;

increases in working capital investment to fund the growth of acquired operations;

unexpected capital expenditures to upgrade waste handling or other infrastructure or replace equipment to operate safely
and efficiently;

potential loss of key employees and customers of the acquired company; and

future write-offs of intangible and other assets, including goodwill, if the acquired operations fail to generate sufficient
cash flows.

If we are not able to achieve these objectives, the anticipated benefits of an acquisition may not be realized fully, if at all, or may
take  longer  to  realize  than  expected.  It  is  possible  that  the  integration  process  could  result  in  the  loss  of  key  employees,  the
disruption of our ongoing business, failure to implement the business plan for the combined businesses, unanticipated issues in
integrating  service  offerings,  logistics  information,  communications  and  other  systems  or  other  unanticipated  issues,  expenses
and liabilities, any or all of which could adversely affect our ability to maintain relationships with customers and employees or to
achieve the anticipated benefits of the acquisition.

In the event that we undertake future acquisitions, we may not be able to successfully execute our acquisition strategy.

We  may  experience  delays  in  making  acquisitions  or  be  unable  to  make  the  acquisitions  we  desire  for  a  number  of  reasons.
Suitable acquisition candidates may not be available at purchase prices that are attractive to us or on terms that are acceptable to
us. In pursuing acquisition opportunities, we typically compete with other companies, some of which have greater financial and
other  resources  than  we do. We  may  not have available  funds  or common  stock with a sufficient  market  price  to complete  an
acquisition. If we are unable to secure sufficient funding for potential acquisitions, we may not be able to complete acquisitions
that we otherwise find advantageous.

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The timing and number of acquisitions we pursue may cause volatility in our financial results.

We  are  unable  to  predict  the  size,  timing  and  number  of  acquisitions  we  may  complete,  if  any.  In  addition,  we  may  incur
expenses associated with sourcing, evaluating and negotiating acquisitions (including those that are not completed), and we also
may pay fees and expenses associated with financing acquisitions to investment banks and others. Any of these amounts may be
substantial, and together with the size, timing and number of acquisitions we pursue, may negatively impact and cause significant
volatility in our financial results and the price of our common stock.

Failure to realize the anticipated benefits and operational performance from previously acquired operations could lead to an
impairment of goodwill or other intangible assets.

As  a  result  of  acquisitions  since  2010,  including  our  acquisition  of  NRC  in  2019,  we  have  goodwill  of  $413.0  million,  non-
amortizing intangible assets of $82.9 million and amortizing intangible assets of $441.1 million at December 31, 2020. We are
required to test goodwill and non-amortizing intangible assets at least annually to determine if impairment has occurred. We are
also required to test goodwill and intangible assets if an event occurs or circumstances change that would more likely than not
reduce  the  fair  value  of  a  reporting  unit  below  its  carrying  amount.  The  testing  of  goodwill  and  other  intangible  assets  for
impairment  requires  us  to  make  significant  estimates  about  future  performance  and  cash  flows,  as  well  as  other  assumptions.
These  estimates  can  be  affected  by  numerous  factors,  including  potential  changes  in  economic,  industry  or  market  conditions,
changes in laws or regulations, changes in business operations, changes in competition or changes in our stock price and market
capitalization.  Changes in these factors,  or changes in actual  performance  compared  with estimates  of our future performance,
may affect the fair value of goodwill or other intangible assets, which may result in an impairment charge.

Based on the results of those tests, during 2020 we recorded a $363.9 million goodwill impairment charge on our Energy Waste
(“EW”) reporting unit, a $14.4 million goodwill impairment charge on our Field Services reporting unit, a $5.5 million goodwill
impairment charge on our International reporting unit and a $21.1 million impairment charge on non-amortizing operating permit
intangible assets.

Estimates  of  the  future  performance  of  our  reporting  units  assume  a  certain  level  of  revenue  and  earnings  growth  over  the
projection period. The projected revenue and earnings growth is based on various factors and assumptions that we consider to be
reasonable,  including,  but  not  limited  to,  growth  in  the  industries  served  by  the  Field  Services  reporting  unit,  successful
implementation  of our business and marketing strategies for this reporting unit and continuing favorable market conditions for
the customers we serve. Should any of these assumptions turn out to be false and the projected growth not occur for these or other
reasons, the reporting units otherwise fail to meet their current financial plans or there are changes to any other key assumptions
used in the estimates, the financial performance of these reporting units could result in a future goodwill impairment.

We cannot accurately predict the amount and timing of any impairment of assets. Should the value of goodwill or other intangible
assets  become  impaired  as  a  result  of  a  failure  to  realize  the  anticipated  benefits  and  operational  performance  of  acquired
operations, our financial condition and results of operations could be adversely impacted.

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Risks Relating to our Capital Structure

We may not be able or willing to pay future dividends.

The  Company  suspended  its  quarterly  dividend,  commencing  with  the  second  quarter  of  2020,  to  preserve  free  cash  flow  and
enhance liquidity in response to the COVID-19 pandemic. Our ability to pay dividends is subject to our future financial condition
and certain conditions such as continued compliance with covenants contained in the Credit Agreement. Our Board of Directors
must  also  approve  any  dividends  at  their  sole  discretion.  Pursuant  to  the  Credit  Agreement,  we  may  only  declare  quarterly  or
annual dividends if on the date of declaration, no event of default has occurred and no other event or condition has occurred that
would  constitute  an  event  of  default  due  to  the  payment  of  the  dividend.  Unforeseen  events  or  situations  could  cause  non-
compliance  with  these  covenants,  or  cause  the  Board  of  Directors  to  discontinue  or  reduce  the  amount  of  any  future  dividend
payment.

Future stock issuances could adversely affect common stock ownership interest and rights in comparison with those of other
security holders.

Our  Board  of  Directors  has  the  authority  to  issue  additional  shares  of  common  stock  or  preferred  stock  without  stockholder
approval.  If  additional  funds  are  raised  through  the  issuance  of  equity  or  securities  convertible  into  common  stock,  or  we  use
shares of our common stock to pay a portion of the purchase price in any future acquisition, the percentage of ownership of our
existing  stockholders  would be  reduced,  and these  newly issued  securities  may  have rights,  preferences  or privileges  senior  to
those of existing stockholders. If we issue additional common stock or securities convertible into common stock, such issuance
would reduce the proportionate ownership and voting power of each other stockholder. In addition, such stock issuances might
result in a reduction of the book value of our common stock.

Anti-takeover  provisions  in  our  organizational  documents  and  under  Delaware  law  may  impede  or  discourage  a  takeover,
which could cause the market price of our common stock to decline.

We are a Delaware corporation, and the anti-takeover provisions of Delaware law impose various impediments to the ability of a
third party to acquire control of us, even if a change in control would be beneficial  to our existing stockholders, which, under
certain circumstances, could reduce the market price of our common stock. In addition, protective provisions in our Amended and
Restated Certificate of Incorporation (the “charter”) and Amended and Restated Bylaws or the implementation by our Board of
Directors of a stockholder rights plan could prevent a takeover, which could harm our stockholders.

The price of our common stock has fluctuated in the past and this may make it difficult for stockholders to resell shares of
common stock at times or may make it difficult for stockholders to sell shares of common stock at prices they find attractive.

The trading price of our common stock may fluctuate widely as a result of a number of factors, many of which are outside our
control. In addition, the stock market is subject to fluctuations in share prices and trading volumes that affect the market prices of
the shares of many companies. These broad market fluctuations have adversely affected, and may in the future adversely affect,
the market price of our common stock. Among the factors that could affect our stock price are:

●

●

●

changes  in  financial  estimates  and  buy/sell  recommendations  by  securities  analysts  or  our  failure  to  meet  analysts’
revenue or earnings estimates;

actual or anticipated variations in our operating results;

our earnings releases and financial performance;

● market conditions in our industry and the general state of the securities markets;

●

fluctuations in the stock price and operating results of our competitors;

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●

●

●

●

actions by institutional stockholders;

investor perception of us and the industry and markets in which we operate;

general economic conditions in the United States and Canada;

international  disorder  and  instability  in  foreign  financial  markets,  including  but  not  limited  to  potential  sovereign
defaults; and

●

other factors described in “Risk Factors.”

There is no guarantee that our warrants will ever be in the money and they may expire worthless.

The exercise price for our warrants is $58.67 per share of common stock, subject to certain restrictions set forth in the Warrant
Agreement (as defined below). There is no guarantee that the warrants will ever be in the money prior to their expiration, and as
such, the warrants may expire worthless. In addition, our warrants were issued to holders of warrants of NRC prior to the NRC
Merger in registered  form under that certain  Assignment, Assumption and Amendment to the Warrant Agreement,  dated as of
November 1, 2019, by and between US Ecology, Inc., American Stock Transfer & Trust Company, LLC, NRC and Continental
Stock Transfer & Trust Company (the “Warrant Agreement”). The Warrant Agreement provides that the terms of the warrants
may  be  amended  without  the  consent  of  any  holder  to  cure  any  ambiguity  or  correct  any  defective  provision,  but  requires  the
approval by the holders of at least 65% of the then-outstanding warrants to make any change that adversely affects the interests of
the registered holders.

Our indebtedness may limit the amount of cash flow available to invest in the ongoing needs of our business, and our credit
agreement restricts our ability to engage in certain corporate and financial transactions.

On  April  18,  2017,  Predecessor  US  Ecology  entered  into  a  new  senior  secured  credit  agreement  (as  amended,  restated,
supplemented  or  otherwise  modified  through  the  date  hereof,  the  “Credit  Agreement”)  with  Wells  Fargo  Bank,  National
Association (“Wells Fargo”), as administrative agent for the lenders, swingline lender and issuing lender, and Bank of America,
N.A., as an issuing lender, that provides for a $500.0 million, five-year revolving credit facility (the “Revolving Credit Facility”),
including a $75.0 million sublimit for the issuance of standby letters of credit and a $40.0 million sublimit for the issuance of
swingline loans used to fund short-term working capital requirements. The Credit Agreement also contains an accordion feature
whereby  Predecessor  US  Ecology  may  request  up  to  $200.0  million  of  additional  funds  through  an  increase  to  the  Revolving
Credit  Facility,  through  incremental  term  loans,  or  some  combination  thereof.  On  August  6,  2019  and  November  1,  2019,  the
Credit Agreement was amended to permit and provide for Wells Fargo to lend $450.0 million in incremental terms loans to pay
off the existing debt of NRC in connection with the NRC Merger, to pay the fees, costs and expenses in connection with the NRC
Merger and to pay down outstanding revolving credit loans under the Revolving Credit Facility. As of December 31, 2020, we
had total indebtedness of $792.5 million, comprised of $445.5 million of term loans and $347.0 million of revolving credit loans
out of a $500.0 million revolving credit commitment under the Revolving Credit Facility. These revolving credit loans are due
upon the earliest to occur of (1) November 1, 2024 (or, with respect to any lender, such later date as requested by us and accepted
by such lender), (2) the date of termination of the entire revolving credit commitment (as defined in the Credit Agreement) by us
and (3) termination of the Credit Agreement. The term loan is due upon the earliest to occur of (i) November 1, 2026 (or, with
respect  to  any  lender,  such  later  date  as  requested  by  us  and  accepted  by  such  lender)  and  (ii)  termination  of  the  Credit
Agreement.  The  Credit  Agreement  makes  us  vulnerable  to  adverse  general  economic  or  industry  conditions  and  increases  in
interest  rates,  as  borrowings  under  our  senior  secured  credit  facilities  are  at  variable  rates,  and  limits  our  ability  to  obtain
additional financing in the future for working capital or other purposes.

In addition, the Credit Agreement and related ancillary agreements with our lenders contain certain covenants that, among other
things, restrict our ability to incur additional indebtedness, pay dividends and make other restricted payments, repurchase shares
of  outstanding  stock,  create  certain  liens  and  engage  in  certain  types  of  transactions.  Our  ability  to  borrow  under  the  Credit
Agreement depends upon our compliance with the restrictions contained in the Credit Agreement and events beyond our control
could affect our ability to comply with these covenants.

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The  Credit  Agreement  also  contains  certain  financial  covenants  requiring  us  to  maintain  a  minimum  consolidated  interest
coverage ratio of 3.00 to 1.00 and a maximum consolidated total net leverage ratio of 4.00 to 1.00. On June 26, 2020, Predecessor
US Ecology entered into the third amendment (the “Third Amendment”) to the Credit Agreement. Among other things, the Third
Amendment amended the Credit Agreement to provide a covenant relief period through the earlier of March 31, 2022 and the
date Predecessor US Ecology elects to end such covenant relief period pursuant to the terms therein. During the covenant relief
period, the Third Amendment increased Predecessor US Ecology’s consolidated total net leverage ratio requirement as of the end
of each fiscal quarter to certain ratios above the 4.00 to 1.00 maximum consolidated total net leverage ratio in effect immediately
before  giving  effect  to  the  Third  Amendment,  subject  to  compliance  with  certain  restrictions  on  restricted  payments  and
permitted  acquisitions  during  such  covenant  relief  period.  At  December  31,  2020,  we  were  in  compliance  with  the  financial
covenants in the Credit Agreement, as amended by the Third Amendment.

Following the covenant relief period, our financial covenants under the Credit Agreement will revert to their original, pre-Third
Amendment levels. As of December 31, 2020, we would not have been in compliance with the financial covenants in the Credit
Agreement  had  the  covenant  relief  period  under  the  Third  Amendment  not  been  in  effect.  A  breach  of  either  of  the  financial
covenants would constitute an event of default as defined in the Credit Agreement and, if we are unable to obtain or extend a
waiver  from  our  lenders,  could  result  in  the  acceleration  of  all  borrowings  then  outstanding.  An  amendment  to  the  Credit
Agreement to decrease the consolidated interest coverage ratio, increase the total net leverage ratio, or both, may result in higher
interest rates on outstanding borrowings and therefore higher interest expense, and may not be achievable on terms acceptable to
us  or  at  all.  We  may  be  unable  to  satisfy  our  obligations  upon  an  event  of  default  and  we  may  not  be  able  to  refinance  our
borrowings under the Credit Facility on commercially reasonable terms or at all.

Changes  in  the  method  of  determining  LIBOR,  or  the  replacement  of  LIBOR  with  an  alternative  reference  rate,  may
adversely affect interest expense related to our debt.

Amounts drawn under our credit facilities bear interest rates at the election of the borrower, in relation to LIBOR or an alternate
base rate. On July 27, 2017, the Financial Conduct Authority in the United Kingdom announced that it would phase out LIBOR
as  a  benchmark  by  the  end  of  2021.  It  is  unclear  whether  new  methods  of  calculating  LIBOR  will  be  established  such  that  it
continues to exist after 2021. The U.S. Federal Reserve is considering replacing U.S. dollar LIBOR with a newly created index
called the Secured Overnight Financing Rate, calculated with a broad set of short-term repurchase agreements backed by treasury
securities. Our credit facilities contain certain provisions concerning the possibility that LIBOR may cease to exist, and that an
alternative reference rate may be chosen. However, if LIBOR in fact ceases to exist, and no alternative rate is acceptable to the
Company or its lenders, amounts drawn under our credit facilities  would be subject to the alternate  base rate, which may be a
higher interest rate than LIBOR which would increase our interest expense. As a result, we may need to renegotiate our credit
facilities and may not be able to do so with terms that are favorable to us. The overall financial market may be disrupted as a
result  of  the  phase-out  or  replacement  of  LIBOR.  Disruption  in  the  financial  market  or  the  inability  to  renegotiate  the  credit
facility with favorable terms could have a material adverse effect on our business, financial position, and operating results.

Risks Related to the Jones Act

Our business would be adversely affected if we failed to comply with the Jones Act’s restrictions on ownership of our capital
stock by non-U.S. Citizens.

A substantial portion of our operations is conducted in the U.S. coastwise trade and is subject to the requirements of the Jones
Act.  The  Jones  Act  restricts  waterborne  transportation  of  merchandise  and  passengers  for  hire  by  water  or  by  land  and  water,
either  directly  or  via  a  foreign  port,  between  points  in  the  United  States  and  certain  of  its  island  territories  and  possessions  to
U.S.-flag  vessels  meeting  certain  requirements,  including  ownership  and  control  by  U.S.  Citizens  (within  the  meaning  of  the
Jones Act). We are responsible for monitoring the non-U.S. Citizen ownership of our common stock and other equity interests to
ensure compliance with the Jones Act. We could lose the privilege of owning and operating vessels in the U.S. coastwise trade if
non-U.S. Citizens were to own or control, in the aggregate, more than 25% of our common stock or other equity interests in us.
Such a loss would have a material adverse effect on our business and results of operations. Violations of the Jones Act would
result in us losing eligibility to engage in the U.S. coastwise trade, the imposition of substantial penalties against us, including
fines and seizure and forfeiture of our vessels, and/or the temporary

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or  permanent  inability  to  document  our  vessels  in  the  United  States  with  coastwise  endorsements,  any  of  which  could  have  a
material  adverse  effect  on  our  financial  condition  and  results  of  operations.  Although  we  currently  believe  we  meet  the
requirements  to  engage  in  the  U.S.  coastwise  trade,  and  there  are  provisions  in  the  charter  that  were  designed  to  assist  us  in
complying with these requirements, there can be no assurance that we will be in compliance with the Jones Act in the future.

Repeal, amendment, suspension or non-enforcement of the Jones Act would result in additional competition for a substantial
portion of our services and could have a material adverse effect on our business.

We are subject to the Jones Act, which restricts the transportation of merchandise and passengers for hire by water or by land and
water, either directly or via a foreign port, between points in the United States and certain of its island territories and possessions
to U.S.-flag vessels that meet certain requirements, including that they are built in the United States and owned by U.S. Citizens
(within the meaning of the Jones Act), and manned by predominantly U.S. citizen crews. During the past several years, interest
groups  have  lobbied  the  U.S.  Congress,  and  legislation  has  been  introduced,  to  repeal  certain  provisions  of  the  Jones  Act  to
facilitate foreign-flag vessel competition for trades and cargoes currently reserved for U.S.-flag vessels under the Jones Act. We
expect  that  continued  efforts  will  be  made  to  modify  or  repeal  the  Jones  Act.  In  addition,  the  Secretary  of  the  Department  of
Homeland  Security  may  waive  the  requirement  for  using  U.S.-flag  vessels  with  coastwise  endorsements  in  the  U.S.  coastwise
trade  in  the  interest  of  national  defense.  In  addition,  our  advantage  as  a  U.S.  Citizen  operator  of  Jones  Act  vessels  could  be
eroded by periodic efforts and attempts by foreign interests to circumvent certain aspects of the Jones Act. In addition, maritime
transportation services are currently excluded from the General Agreement on Trade in Services (“GATS”) and are the subject of
reservations by the United States in NAFTA, the United States-Mexico-Canada Agreement (“USMCA”) and other international
free trade agreements. If maritime cabotage services were included in the GATS, NAFTA, USMCA or other international trade
agreements,  or  if  the  restrictions  contained  in  the  Jones  Act  were  otherwise  repealed,  altered  or  waived,  the  transportation  of
cargo and passengers between U.S. ports could be opened to foreign-flag, foreign-built vessels or foreign-owned vessels. To the
extent such foreign competition is permitted from vessels built in lower-cost shipyards with promotional foreign tax incentives or
favorable tax regimes and crewed by non-U.S. Citizens with lower wages and benefits than U.S. citizens, such competition could
have a material adverse effect on our business, financial position, results of operations and cash flows.

Our common stock is subject to restrictions on ownership by non-U.S. Citizens, which could require divestiture by non-U.S.
Citizen stockholders  and could have a negative  impact  on the transferability  of our common stock, its liquidity  and market
value, and upon a change of control of the Company.

Certain of our operations are conducted in the U.S. coastwise trade and are governed by U.S. federal laws commonly known as
the Jones Act. The Jones Act restricts the transportation of merchandise and passengers for hire by water or by land and water,
either directly or via a foreign port, between points in the United States and certain of its island territories and possessions, to
U.S.-flag vessels that meet certain requirements, including that they are built in the United States, owned and operated by U.S.
Citizens (within the meaning of the Jones Act), and manned by predominantly U.S. Citizen crews. We could lose the privilege of
owning and operating vessels in the U.S. coastwise trade and may become subject to penalties and risk seizure and forfeiture of
our U.S.-flag vessels if non-U.S. Citizens were to own or control, in the aggregate, more than 25% of any class or series of our
capital stock. Such loss would have a material adverse effect on our results of operations.

Our charter authorizes, with respect to any class or series of our capital stock, certain rules, policies and procedures, including
procedures  with  respect  to  transfer  of  shares,  to  assist  in  monitoring  and  maintaining  compliance  with  the  Jones  Act’s  U.S.
citizenship requirements, which may have an adverse effect on holders of shares of our common stock.

In order to provide a reasonable margin for compliance with the Jones Act, the charter contains provisions that limit the aggregate
percentage beneficial ownership by non-U.S. Citizens of any class or series of our capital stock (including the common stock) to
24%  of  the  outstanding  shares  of  each  such  class  or  series  to  ensure  that  ownership  by  non-U.S.  Citizens  will  not  exceed  the
maximum percentage permitted by the Jones Act (presently 25%).

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The aggregate percentage of non-U.S. Citizen ownership of our outstanding common stock is expected to fluctuate based on daily
trading  and  may  increase  above  the  24%  maximum  permitted  percentage.  At  and  during  such  times  that  the  24%  permitted
percentage  of  shares  of  common  stock  held  by  non-U.S.  Citizens  is  reached,  we  will  be  unable  to  issue  any  further  shares  of
common stock to non-U.S. Citizens (including any shares issuable upon exercise of the warrants) or permit transfers of common
stock to non-U.S. Citizens. Any issuance or transfer of shares in excess of such permitted percentage shall be ineffective against
us, and neither we nor our transfer agent are required to register such purported issuance or transfer of shares or be required to
recognize the purported transferee or owner as our stockholder for any purpose whatsoever except to exercise our remedies. Any
such  excess  shares  in  the  hands  of  a  non-U.S.  Citizen  shall  not  have  any  voting  or  dividend  rights.  In  addition,  we,  in  our
discretion,  are  entitled  to  redeem  all  or  any  portion  of  such  shares  most  recently  acquired  (as  determined  by  our  Board  of
Directors  in  accordance  with  guidelines  that  are  set  forth  in  the  charter),  by  non-U.S.  Citizens,  in  excess  of  such  maximum
permitted percentage for such class or series at a redemption price based on a fair market value formula that is set forth in the
charter,  which  is  to  be  paid  by  the  issuance  of  redemption  warrants  (the  “Redemption  Warrants”)  permitting  the  holders  to
receive shares of common stock in the future when the receipt thereof would not violate the charter at an exercise price of $0.01
per share. In the event that we determine that Redemption Warrants would be treated by the USCG as capital stock, or if we are
unable to issue the Redemption Warrants for any other reason, we may redeem the excess shares with cash, promissory notes or a
combination of both at the discretion of our board of directors.

As a result of these provisions, a purported stockholder who is a non-U.S. Citizen may not receive any return on its investment in
any such excess shares it purportedly purchases or owns, as the case may be, and it may sustain a loss. Further, we may have to
incur  additional  indebtedness,  or  use  available  cash  (if  any),  to  fund  all  or  a  portion  of  such  redemption,  in  which  case  our
financial  condition  may  be  materially  weakened.  The  existence  and  enforcement  of  these  requirements  could  have  an  adverse
impact on the liquidity or market value of our equity securities in the event that U.S. Citizens were unable to transfer shares in the
Company to non-U.S. Citizens. Furthermore, under certain circumstances, this ownership restriction could discourage, delay or
prevent a change of control of the Company. So that we may monitor and maintain our compliance with the Jones Act, provisions
in the charter permit us to require that owners of any shares of our capital stock provide confirmation of their citizenship. In the
event that a person does not submit such documentation to us, those provisions provide us with certain remedies, including the
suspension  of  voting,  dividend  and  distribution  rights  and  treatment  of  such  person  as  a  non-U.S.  Citizen  unless  and  until  we
receive  the  requested  documentation  confirming  that  such  person  is  a  U.S.  Citizen.  As  a  result  of  non-compliance  with  these
provisions, an owner of the shares of our common stock may lose significant rights associated with those shares.

If, for any reason, we are unable to effect such a redemption when such ownership of shares by non-U.S. Citizens is in excess of
25% of the common stock, or otherwise prevent non-U.S. Citizens in the aggregate from owning shares in excess of 25% of any
class  or  series  of  our  capital  stock,  or  we  fail  to  exercise  our  redemption  rights  because  we  are  unaware  that  such  ownership
exceeds  such  percentage,  we  will  likely  be  unable  to  comply  with  the  Jones  Act  and  will  likely  be  required  by  the  applicable
governmental  authorities  to  suspend  our  operations  in  the  U.S.  coastwise  trade.  Any  such  actions  by  governmental  authorities
would have a material adverse effect on our business, financial position, results of operations and cash flows.

General Risk Factors

Our  market  is  highly  competitive.  Failure  to  compete  successfully  could  have  a  material  adverse  effect  on  our  business,
financial condition and results of operations.

We face competition from companies with greater resources than us, companies with closer geographic proximity to waste sites,
service  offerings  we  do  not  provide  and  that  can  provide  lower  pricing  than  we  can  in  certain  instances.  An  increase  in  the
number  or  location  of  commercial  treatment  or  disposal  facilities  for  hazardous  or  radioactive  waste,  significant  expansion  of
existing competitor permitted capabilities, acquisitions by competitors or a decrease in the treatment or disposal fees charged by
competitors  could  materially  and  adversely  affect  our  results  of  operations.  Our  business  is  also  heavily  affected  by  waste
disposal  fees  imposed  by  government  agencies.  These  fees,  which  vary  from  state  to  state  and  are  periodically  adjusted,  may
adversely impact the competitive environment in which we operate.

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Adverse economic conditions, government funding or competitive pressures affecting our customers could harm our business.

We serve oil refineries, chemical production plants, steel mills, real estate developers, waste brokers/aggregators serving small
manufacturers  and  other  industrial  customers  that  are,  or  may  be,  affected  by  changing  economic  conditions  and  competition.
These customers may be significantly impacted by deterioration in the general economy and may curtail waste production and/or
delay spending on plant maintenance, waste cleanup projects and other discretionary work. Spending by government customers
may  also  be  reduced  or  temporarily  suspended  due  to  declining  tax  revenues  that  may  result  from  a  general  deterioration  in
economic conditions or other federal or state fiscal policy. Factors that can impact general economic conditions and the level of
spending  by  customers  include  the  general  level  of  consumer  and  industrial  spending,  increases  in  fuel  and  energy  costs,
residential  and  commercial  real  estate  and  mortgage  market  conditions,  labor  and  healthcare  costs,  access  to  credit,  consumer
confidence and other macroeconomic factors affecting spending behavior. Market forces may also compel customers to cease or
reduce operations, declare bankruptcy, liquidate or relocate to other countries, any of which could adversely affect our business.

Our  operations  are  significantly  affected  by  the  commencement  and  completion  of  large  and  small  cleanup  projects,  potential
seasonal fluctuations due to weather, budgetary decisions and cash flow limitations influencing the timing of customer spending
for  remedial  activities,  the  timing  of  regulatory  agency  decisions  and  judicial  proceedings,  changes  in  government  regulations
and enforcement policies and other factors that may delay or cause the cancellation of cleanup projects. We do not control such
factors, which can cause our revenue and income to vary significantly from quarter to quarter and year to year.

If we fail to comply with applicable laws and regulations our business could be adversely affected.

The changing regulatory framework governing our business creates significant risks. We could be held liable if our operations
cause contamination of air, groundwater or soil or expose our employees or the public to contamination. Under current law, we
may be held liable for damage caused by conditions that existed before we acquired the assets or operations involved. Also, we
may  be  liable  if  we  arrange  for  the  transportation,  disposal  or  treatment  of  hazardous  substances  that  cause  environmental
contamination at facilities operated by others, or if a predecessor made such arrangements and we are a successor. Liability for
environmental damage could have a material adverse effect on our financial condition, results of operations and cash flows.

Stringent  regulations  of  federal,  state  or  provincial  governments  have  a  substantial  impact  on  our  business.  Local  government
controls  may  also  apply.  Many  complex  laws,  rules,  orders  and  regulatory  interpretations  govern  environmental  protection,
health, safety, noise, visual impact, odor, land use, zoning, transportation and related matters. Failure to obtain on a timely basis
or  comply  with  applicable  federal,  state,  provincial  and  local  governmental  regulations,  licenses,  permits  or  approvals  for  our
waste treatment and disposal facilities could prevent or restrict our ability to provide certain services, resulting in a potentially
significant loss of revenue and earnings. Changes in environmental regulations may require us to make significant capital or other
expenditures, or limit operations. Changes in laws or regulations or changes in the enforcement or interpretation of existing laws,
regulations or permitted activities may require us to modify existing operating licenses or permits, or obtain additional approvals
or limit operations. New governmental requirements that raise compliance standards or require changes in operating practices or
technology may impose significant costs and/or limit operations.

Our revenue is primarily generated as a result of requirements imposed on our customers under federal, state, and provincial laws
and  regulations  to  protect  public  health  and  the  environment.  If  requirements  to  comply  with  laws  and  regulations  governing
management  of  PCB, hazardous  or radioactive  waste  were  relaxed  or less  vigorously  enforced,  demand  for our  services  could
materially decrease and our revenues and earnings could be significantly reduced.

We could be subject to significant fines and penalties, and our reputation could be adversely affected, if our businesses, or
third parties with whom we have a relationship, were to fail to comply with U.S. or foreign laws or regulations.

Some  of  our  projects  and  business  may  be  conducted  in  countries  where  corruption  has  historically  been  prevalent.  It  is  our
policy to comply with all applicable anti-bribery laws, such as the U.S. Foreign Corrupt Practices Act (the “FCPA”),

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and with applicable local laws of the foreign countries in which we operate, and we monitor our local partners’ compliance with
such laws as well. Our reputation may be adversely affected if we were reported to be associated with corrupt practices or if we
failed  to  comply  with  such  laws.  Such  damage  to  our  reputation  could  adversely  affect  our  ability  to  grow  our  business.
Additionally, violations of such laws could subject us to significant fines and penalties.

Our  participation  in  multi-employer  pension  plans  may  subject  us  to  liabilities  that  could  materially  adversely  affect  our
liquidity, cash flows and results of operations.

Certain of the Company’s wholly-owned subsidiaries participate in multi-employer defined benefit pension plans under the terms
of  collective  bargaining  agreements  covering  most  of  the  subsidiaries’  union  employees.  To  the  extent  that  those  plans  are
underfunded,  the  Employee  Retirement  Income  Security  Act  of  1974,  as  amended  by  the  Multi-Employer  Pension  Plan
Amendments Act of 1980 (“ERISA”), may subject us to substantial liabilities if we withdraw from such multi-employer plans or
if  they  are  terminated.  Under  current  law  regarding  multi-employer  defined  benefit  plans,  a  plan’s  termination,  an  employer’s
voluntary partial or complete withdrawal from or the mass withdrawal of all contributing employers from, an underfunded multi-
employer defined benefit plan requires participating employers to make payments to the plan for their proportionate share of the
multi-employer  plan’s  unfunded  vested  liabilities.  Furthermore,  the  Pension  Protection  Act  of  2006  added  new  funding  rules
generally applicable to plan years beginning after 2007 for multi-employer plans that are classified as “endangered,” “seriously
endangered,” or “critical” status. If plans in which we participate are in critical status, benefit reductions may apply and/or we
could be required to make additional contributions. Contributions to these funds could also increase as a result of future collective
bargaining  with  the  unions,  a  shrinking  contribution  base  as  a  result  of  the  insolvency  of  other  companies  who  currently
contribute to these funds, failure of the plan to meet ERISA’s minimum funding requirements, lower than expected returns on
pension fund assets, or other funding deficiencies.  Any of the foregoing events could materially  adversely  affect our liquidity,
cash flows and results of operations.

Based upon the information available to us from plan administrators as of April 30, 2020, certain of the multi-employer pension
plans in which we participate are underfunded. The Pension Protection Act requires that underfunded pension plans improve their
funding  ratios  within  prescribed  intervals  based  on  the  level  of  their  underfunding.  In  addition,  if  a  multi-employer  defined
benefit  plan  fails  to  satisfy  certain  minimum  funding  requirements,  the  Internal  Revenue  Service  may  impose  a  nondeductible
excise tax of 5% on the amount of the accumulated funding deficiency for those employers contributing to the fund. We have
been notified that certain plans to which our subsidiaries contribute are in “critical” status and these plans may require additional
contributions in the form of a surcharge on future benefit contributions required for future work performed by union employees
covered by these plans. As a result, we expect our required contributions to these plans to increase in the future. The amount of
additional funds we may be obligated to contribute in the future cannot be estimated, as such amounts will be based on future
levels of work that require the specific use of the union employees covered by these plans, investment returns and the level of
underfunding of such plans.

A cybersecurity incident could negatively impact our business and our relationships with customers.

We use computers in substantially all aspects of our business operations. We also use mobile devices and other online activities
to connect with our employees  and our customers. Such uses of technology give rise to cybersecurity  risks, including security
breach,  espionage,  system  disruption,  theft  and  inadvertent  release  of  information.  Our  business  involves  the  storage  and
transmission  of  numerous  classes  of  sensitive  and/or  confidential  information  and  intellectual  property,  including  customers’
personal information,  private information  about employees, and financial and strategic information about the Company and its
business  partners.  Further,  if  the  Company  in  the  future  pursues  acquisitions  or  new  initiatives  that  require  expanding  or
improving  our  information  technologies,  this  may  result  in  a  larger  technological  presence  and  corresponding  exposure  to
cybersecurity risk. If we fail to assess and identify cybersecurity risks associated with acquisitions and new initiatives, we may
become  increasingly  vulnerable  to  such  risks.  Further,  despite  these  security  measures,  the  Company’s  computer  systems  and
infrastructure  may  be  vulnerable  to  attacks  by  hackers  or  breached  due  to  employee  error,  malfeasance,  or  other  disruptions.
Additionally, while we have implemented measures to prevent security breaches and cyber incidents, our preventative measures
and incident response efforts may not be entirely effective, and our implementation of various procedures and controls to monitor
and  mitigate  security  threats  and  to  increase  security  for  our  information,  facilities  and  infrastructure  may  result  in  increased
capital  and operating  costs.  Costs for insurance  may also increase  as a result of security  threats,  and some insurance  coverage
may become more difficult to obtain, if available at all.

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Cybersecurity  attacks  in  particular  are  becoming  more  sophisticated.  We  rely  extensively  on  information  technology  systems,
including internet sites, computer software, data hosting facilities and other hardware and platforms, some of which are hosted by
third  parties,  to  assist  in  conducting  our  business.  Our  technologies  systems  may  become  the  target  of  cybersecurity  attacks,
including without limitation malicious software, attempts to gain unauthorized access to data and systems, and other electronic
security breaches that could lead to disruptions in critical systems and materially and adversely affect us in a variety of ways: the
theft,  destruction,  loss,  misappropriation  or  release  of  sensitive  and/or  confidential  information  or  intellectual  property,  or
interference with our information technology systems or the technology systems of third parties on which we rely, could result in
business  disruption,  negative  publicity,  brand  damage,  violation  of  privacy  laws,  loss  of  customers,  potential  liability  and
competitive disadvantage.

Unanticipated changes in our tax provisions or adverse outcomes resulting from examination of our income tax returns could
adversely affect our results of operations.

We  are  subject  to  income  taxes  in  the  United  States  and  various  foreign  jurisdictions.  Our  effective  income  tax  rate  could  be
adversely affected by changes in tax laws or interpretations of those tax laws, or by changes in the valuation of our deferred tax
assets  and  liabilities.  Additionally,  our  effective  tax  rate  may  be  affected  by  the  tax  effects  of  acquisitions  or  restructuring
activities we may undertake, changes in share-based compensation, newly enacted tax legislation and uncertain tax positions we
may take in the short term in response to such legislation. Finally, we are subject to the examination of our income tax returns by
the Internal Revenue Service in the United States and other tax authorities in the various countries in which we operate, which
may result in the assessment of additional income taxes. We regularly assess the likelihood of adverse outcomes resulting from
these  examinations  to  determine  the  adequacy  of  our  provision  for  income  taxes.  However,  unanticipated  outcomes  from
examinations could have a material adverse effect on our business, financial condition and results of operations.

Tax laws are dynamic and subject to change as new laws are passed and new interpretations of the law are issued or applied. The
U.S.  recently  enacted  significant  tax  reform,  and  certain  provisions  of  the  new  law  may  adversely  affect  us.  In  addition,
governmental tax authorities are increasingly scrutinizing the tax positions of companies. If the U.S. or foreign tax authorities of
jurisdictions  within which we operate  change applicable  tax laws, our overall  taxes could increase, and our business, financial
condition or results of operations may be adversely impacted.

Loss of key management or sales personnel could harm our business.

We  have  an  experienced  management  team  including  general  managers  at  our  operating  facilities  and  rely  on  the  continued
service of these senior managers to achieve our objectives. Our objective is to retain our present management and sales teams and
identify,  hire,  train,  motivate  and  retain  other  highly  skilled  personnel.  The  loss  of  any  key  management  employee  or  sales
personnel could adversely affect our business and results of operations.

ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

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ITEM 2. PROPERTIES

The following table describes our principal physical properties and facilities at December 31, 2020 owned or leased by us. We
believe that our existing properties are in good condition and suitable for conducting our business.

Location

Beatty, Nevada
Robstown, Texas

Segment

Waste Solutions
Waste Solutions

Waste Solutions
Grand View, Idaho
Belleville, Michigan
Waste Solutions
Blainville, Québec, Canada Waste Solutions
Waste Solutions
Richland, Washington
Waste Solutions
Winnie, Texas
Waste Solutions
Detroit, Michigan
Waste Solutions
Canton, Ohio
Waste Solutions
Harvey, Illinois
Waste Solutions
York, Pennsylvania
Waste Solutions
Tulsa, Oklahoma
Waste Solutions
Romulus, Michigan
Waste Solutions
Mt. Airy, North Carolina
Waste Solutions
Tilbury, Ontario, Canada
Waste Solutions
Vernon, California
Field Services
Sulligent, Alabama
Field Services
Tampa, Florida
Field Services
Taylor, Michigan
Field Services
Bayonne, New Jersey
Field Services
Atlanta, Georgia
Field Services
Wrentham, Massachusetts
Field Services
Dallas, Texas
Field Services
Midland, Texas
Field Services
Kenai, Alaska
Field Services
Anchorage, Alaska
Field Services
Williston, Vermont
Field Services
Portland, Maine
Energy Waste
Kennedy, Texas
Energy Waste
Pecos County, Texas
Energy Waste
Reagan County, Texas
Corporate
Boise, Idaho

Function

     Own/Lease

Waste treatment and landfill disposal
Waste treatment, landfill disposal and
recycling
Waste treatment and landfill disposal
Waste treatment and landfill disposal
Waste treatment and landfill disposal
Landfill disposal
Waste processing and deep-well disposal
Waste treatment
Waste treatment and recycling
Waste treatment
Waste treatment
Waste treatment
Recycling
Waste treatment
Waste treatment
Waste treatment
Field and industrial waste management
Field and industrial waste management
Field and industrial waste management
Field and industrial waste management
Field and industrial waste management
Field and industrial waste management
Field and industrial waste management
Field and industrial waste management
Field and industrial waste management
Field and industrial waste management
Field and industrial waste management
Field and industrial waste management
Landfill disposal
Landfill disposal
Landfill disposal
Corporate Headquarters

Lease
Own

Own
Own
Own/Lease
Sublease
Own
Own
Own
Own
Own
Own
Own
Own
Own
Own
Own
Own
Own
Lease
Lease
Own
Own
Own
Lease
Lease
Lease
Lease
Own
Own
Own
Lease

In addition to the principal physical properties detailed in the table above, the Company owns or leases a number of smaller (less
than 20,000 sq. ft.) properties supporting our Field Services segment.

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The  following  table  provides  additional  information  for  our  facilities  with  onsite  landfills  including  total  acreage  owned  or
controlled by us at each facility, estimated amount of permitted airspace available at each facility, the estimated amount of non-
permitted airspace and the estimated life at each facility. All estimates are as of December 31, 2020.

     Permitted     Non‑‑Permitted    Estimated

Total

Airspace

Airspace

Life

Location

Beatty, Nevada (1)
Robstown, Texas (2)
Grand View, Idaho (3)
Belleville, Michigan (4)
Blainville, Québec, Canada (5)
Richland, Washington (6)
Karnes County, Texas (7)
Reagan County, Texas (8)
Pecos County, Texas (9)
Total

Segment

Waste Solutions
Waste Solutions
Waste Solutions
Waste Solutions
Waste Solutions
Waste Solutions
Energy Waste
Energy Waste
Energy Waste

 7,708,552  
 9,896,978  
 10,015,235  
 12,135,887  
 5,257,026  
 20,449  

    Acreage     (Cubic Yards)      (Cubic Yards)      (Years)
 41
 59
 287
 29
 19
 35
 25
 274
 135

 —  
 —  
 18,100,000  
 —  
 —  
 —  
 —
 —
 —

 480  
 1,425  
 1,411  
 455  
 350  
 100  
 382
 645
 207

 4,564,055
 11,727,106
 11,198,337
 72,523,625  

 18,100,000  

(1) Our  Beatty,  Nevada  facility,  which  began  receiving  hazardous  waste  in  1970,  is  located  in  the  Amargosa  Desert
approximately 120 miles northwest of Las Vegas, Nevada and approximately 30 miles east of Death Valley, California. The
facility operates on 480 acres owned by the state of Nevada. Our operations are governed by an operating agreement with the
state of Nevada, executed in April 2016, with an initial term of 20 years (and an optional 20-year extension), and a year-to-
year  periodic  tenancy  lease  with  the  State,  last  amended  in  April  2007.  In  2016,  the  facility  secured  permit  modifications
from the Nevada Division of Environmental Protection and the USEPA authorizing the construction of a new landfill unit at
the facility. The first phase of this new landfill was completed in 2017. The state of Nevada assesses disposal fees to fund a
dedicated trust account to pay for future closure and post-closure costs.

(2) Our Robstown, Texas facility began operations in 1973. It is located on 240 acres owned by the Company approximately 10
miles west of Corpus Christi, Texas. We own an additional 1,185 acres of adjacent land for future expansion. We also own
240 acres of land five miles west of the facility adjacent to a rail line where we have operated a rail transfer station since
2006. In January 2018, the Texas Commission of Environmental Quality approved our permit for landfill expansion onto 180
acres of our adjacent land, adding approximately 10 million cubic yards, or 30 years, of future airspace.

(3) Our  Grand  View,  Idaho  facility,  purchased  in  2001,  is  located  on  1,252  acres  of  Company-owned  land  approximately  60
miles southeast of Boise, Idaho in the Owyhee Desert. We own an additional 159 acres approximately two miles east of the
facility that provides a clay source for site operations (liner construction and waste treatment). We also own 189 acres where
our rail transfer station is located approximately 30 miles northeast of the disposal facility. This site has two enclosed rail-to-
truck waste transfer facilities located adjacent to the main line of the Union Pacific Railroad.

(4) Our Belleville, Michigan facility began operations in 1957 and began disposing of waste in the onsite landfill in 1969. The
facility  is  located  on  455  acres  owned  by  the  Company  approximately  30 miles  from  Detroit,  Michigan.  We  also  own 12
acres of land nine miles from the facility adjacent to a rail line where we have operated a rail transfer station since 1998.

(5) Our Blainville, Québec, Canada facility has been in operation since 1983 and is located approximately 30 miles northwest of
Montreal, Québec, Canada. The facility includes an indoor hazardous and industrial waste treatment and storage facility and
a rail transfer  station located  on 25 acres adjacent  to a 325 acre disposal site. The treatment  processing facility  is on land
owned by the Company. The disposal  site which is adjacent  to the owned treatment  processing facility  is leased  from the
Province of Québec with a term through 2023. The site is permitted to accept up to 1,125,000 metric tons (1,237,500 U.S.
tons) over the five-year permit period ending in May 2023. Of this amount, up to 350,000 metric tons (385,000 U.S. tons)
can be accepted as soil. While there are no specific restrictions on waste

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soils  received  from  the U.S., waste  received  from  the U.S. is  limited  to  506,250 metric  tons  (556,875 U.S. tons) over  the
five-year  permit  period.  The  Province  assesses  fees  to  fund  a  dedicated  government  trust  account  to  pay  for  post-closure
costs at the disposal site.

(6) Our Richland, Washington LLRW facility has been in operation since 1965 and is located on 100 acres of land leased by the
State of Washington from the federal government on the U.S. Department of Energy Hanford Reservation approximately 35
miles west of Richland, Washington. We sublease this property from the State of Washington. The lease between the State of
Washington and the federal government expires in 2063. We renewed our sublease with the State in 2005 for ten years with
four ten-year renewal options, giving us control of the property until the year 2055 provided that we meet our obligations
and  operate  in  a compliant  manner.  The facility’s  intended  operating  life  is equal  to the  period  of the  sublease.  The  State
assesses user fees for local economic development, state regulatory agency expenses and a dedicated trust account to pay for
long-term care after the facility closes. The State maintains separate, dedicated trust funds for future closure and post-closure
costs.

(7) Our  Karnes  County,  Texas  facility,  located  in  the  Permian  Basin  on 135  acres  owned by  the  Company  approximately  six
miles southwest of Kennedy, Texas, began operations in February 2016. We own an additional 247 acres of adjacent land for
future expansion if needed. The commercial disposal facility accepts energy-related waste only and is regulated by the RRC
under a five-year permit cycle with renewal issued upon request provided no outstanding operational issues.

(8) Our  Reagan  County,  Texas  facility,  located  in  the  Permian  Basin  on 645  acres  owned by  the  Company  approximately  30
miles northwest of Big Lake, Texas, began operations in July 2019. The commercial disposal facility accepts energy-related
waste  only  and  is  regulated  by  the  RRC  under  a  five-year  permit  cycle  with  renewal  issued  upon  request  provided  no
outstanding operational issues.

(9) Our Pecos County, Texas facility, located in the Permian Basin on 207 acres owned by the Company approximately 28 miles
north of Fort Stockton, Texas, began operations in June 2019. The commercial disposal facility accepts energy-related waste
only and is regulated by the RRC under a five-year permit cycle with renewal issued upon request provided no outstanding
operational issues.

We  also  own  640  acres  in  Andrews  County,  Texas,  located  in  the  Permian  Basin  approximately  25  miles  west  of  Andrews,
Texas. The site is permitted for approximately 11.5 million cubic yards of energy-related waste disposal, however, we have not
constructed any landfill capacity at the site as of December 31, 2020.  The site is regulated by the RRC under a five-year permit
cycle with renewal issued upon request provided no outstanding operational issues.

ITEM 3. LEGAL PROCEEDINGS

In the ordinary course of business, we are involved in judicial and administrative proceedings involving federal, state, provincial
or  local  governmental  authorities,  including  regulatory  agencies  that  oversee  and  enforce  compliance  with  permits.  Fines  or
penalties  may  be  assessed  by  our  regulators  for  noncompliance.  Actions  may  also  be  brought  by  individuals  or  groups  in
connection  with  permitting  of  planned  facilities,  modification  or  alleged  violations  of  existing  permits,  or  alleged  damages
suffered  from  exposure  to  hazardous  substances  purportedly  released  from  our  operated  sites,  as  well  as  other  litigation.  We
maintain  insurance  intended  to  cover  property  and  damage  claims  asserted  as  a  result  of  our  operations.  Periodically,
management  reviews  and  may  establish  reserves  for  legal  and  administrative  matters,  or  other  fees  expected  to  be  incurred  in
relation to these matters.

In  December  2010,  National  Response  Corporation,  a  subsidiary  of  NRC  acquired  by  the  Company  in  the  NRC  Merger,  was
named  as  one  of  many  “Dispersant  Defendants”  in  multi-district  litigation,  arising  out  of  the  explosion  of  the  BP  Deepwater
Horizon (“BP”) oil rig, filed in the U.S. District Court for the Eastern District of Louisiana (“In re Deepwater Horizon” or the
“MDL”). The claims against National Response Corporation, and other “Dispersant Defendants,” were brought by workers and
others  who  alleged  injury  arising  from  post-explosion  clean–up  efforts,  including  particularly  the  use  of  certain  chemical
dispersants.  In  January  2013,  the  Court  approved  a  Medical  Benefits  Class  Action  Settlement,  which,  among  other  things,
provided for a “class wide” settlement as well as a release of claims against Dispersant Defendants, including National Response
Corporation. Further, National Response Corporation successfully moved the

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court to dismiss all claims against it based on derivative immunity, as it was acting at the direction of the U.S. Government. In
early  2018, BP began  asserting  an alleged  contractual  right  of indemnity  against  National  Response  Corporation  and  others  in
post-settlement  lawsuits  brought  by  persons  who  had  either  chosen  not  to  participate  in  the  class-wide  agreement  or  whose
injuries  were  allegedly  manifest  after  the  period  covered  by  the  claim  submission  process.  The  Company  advised  BP  that  it
considers the attempt to bring National Response Corporation back into previously settled litigation to be improper and moved
for  a  declaratory  judgment  that  it  owes  no  indemnity  or  contribution  to  BP,  raising  various  arguments,  including  BP’s  own
actions and conduct over the preceding nine years with respect to these claims (including its failure to seek indemnity) and the
resultant prejudice to National Response Corporation, BP’s waiver of any indemnity, and the court’s prior finding that National
Response  Corporation  is  entitled  to  derivative  immunity.  In  response,  BP  asserted  counterclaims  against  National  Response
Corporation for a declaratory judgment that National Response Corporation must indemnify BP under certain circumstances and
for  unjust  enrichment.  National  Response  Corporation  successfully  moved  to  dismiss  the  unjust  enrichment  claim.  The  parties
filed simultaneous judgment on the pleadings briefs in February 2020, and all oppositions were filed on March 16, 2020. On May
4, 2020, the court found in favor of National Response Corporation, and held that the Company is not liable to BP or any back
end litigation  plaintiffs for any damages related to the Deepwater Horizon oil spill. BP timely appealed the ruling on June 11,
2020. The Company is currently unable to estimate the range of possible losses associated with this proceeding. However, the
Company  also  believes  that,  were  it  deemed  to  have  liability  arising  out  of  or  related  to  BP’s  indemnity  claims,  such  liability
would be covered by an indemnity by SEACOR Holdings Inc., the former owner of National Response Corporation, in favor of
National Response Corporation and its affiliates.

In January 2019, Kevin Sullivan, a driver for NRC from May 1, 2018 to August 22, 2018 filed a class action complaint against
NRC in  California  Superior  Court (Kevin  Sullivan  et. Al. v. National  Response Corp., NRC Environmental  Services,  Inc. and
Paul Taveira et al.) alleging the failure by the defendants to provide meal and rest breaks required by California law and requiring
employees  to  work  off  the  clock.  Mr.  Sullivan’s  complaint  also  asserted  a  claim  under  the  California  Labor  Code  Private
Attorneys General Act (“PAGA”), which permits an employee to assert a claim for violations of certain California Labor Code
provisions on behalf of all aggrieved employees to recover statutory penalties that could be recovered by the State of California.
On April 17, 2019, NRC filed a motion to compel individual arbitration, strike Mr. Sullivan’s class action claims and stay the
PAGA claim pending the outcome of Mr. Sullivan’s individual claim; the court subsequently granted NRC’s motion to compel.
In response, Mr. Sullivan amended his complaint to dismiss the class claims without prejudice and proceed solely with the PAGA
claim.  The  parties  participated  in  a  confidential  mediation  on  August  3,  2020,  and  reached  a  settlement  resolving  the  pending
PAGA  claim.  The  court  issued  a  Notice  of  Entry  of  Judgment  on  October  30,  2020,  approving  the  parties’  settlement.  The
settlement  administrator  confirmed  that  the  notices  and  aggregate  settlement  payments  of  $500,000  were  paid  to  aggrieved
employees on December 28, 2020, in accordance with the distribution timeline. This matter is resolved.

On November 17, 2018, an explosion occurred at our Grand View, Idaho facility, resulting in one employee fatality and injuries
to other employees. The incident severely damaged the facility’s primary waste-treatment building as well as surrounding waste
handling,  waste  storage,  maintenance  and  administrative  support  structures,  resulting  in  the  closure  of  the  entire  facility  that
remained in effect through January 2019. In addition to initiating and conducting our own investigation into the incident, we fully
cooperated  with  the  Idaho  Department  of  Environmental  Quality,  the  U.S.  Environmental  Protection  Agency  and  the
Occupational Safety and Health Administration (“OSHA”) to support their comprehensive and independent investigations of the
incident. On January 10, 2020, we entered into a settlement agreement with OSHA settling a complaint made by OSHA relating
to  the  incident  for  $50,000.  On  January  28,  2020,  the  Occupational  Safety  and  Health  Review  Commission  issued  an  order
terminating  the  proceeding  relating  to  such  OSHA  complaint.  We  maintain  workers’  compensation  insurance,  business
interruption  insurance  and  liability  insurance  for  personal  injury,  property  and  casualty  damage.  We  believe  that  any  potential
third-party claims associated with the explosion in excess of our deductibles are expected to be resolved primarily through our
insurance policies. Although we carry business interruption insurance, a disruption of our business caused by a casualty event,
including the full and partial closure of our Grand View, Idaho facility, may result in the loss of business, profits or customers
during the time of such closure. Accordingly, our insurance policies may not fully compensate us for these losses. In November
2020, we commenced a lawsuit against the generator and broker of the waste, the treatment of which we believe contributed to
the Grand View explosion, seeking damages in connection with the losses suffered as a result of the incident.

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Other than as described above, we are not currently a party to any material pending legal proceedings and are not aware of any
other  claims  that  could,  individually  or  in  the  aggregate,  have  a  materially  adverse  effect  on  our  financial  position,  results  of
operations or cash flows.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

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PART II

ITEM  5.  MARKET  FOR  REGISTRANT’S  COMMON  EQUITY,  RELATED  STOCKHOLDER  MATTERS  AND  ISSUER

PURCHASES OF EQUITY SECURITIES

Common Stock

Our  common  stock  is  listed  on  the  Nasdaq  Global  Select  Market  under  the  symbol  ECOL  and  our  warrants  are  listed  on  the
Nasdaq Capital Market under the symbol ECOLW. As of February 10, 2021, there were approximately 20,391 beneficial owners
of our common stock and one holder of record of our warrants.

Stock Performance Graph

The  following  graph  compares  the  five-year  cumulative  total  return  on  our  common  stock  with  the  comparable  five-year
cumulative total returns of the Nasdaq Composite Index and Dow Jones Waste & Disposal Services Index for the period from the
end  of  fiscal  2015  to  the  end  of  fiscal  2020.  The  stock  price  performance  shown  below  is  not  necessarily  indicative  of  future
performance.

Comparison of Cumulative Total Stockholder Return(1) Among
US Ecology, Inc., Nasdaq Composite Index and
Dow Jones Waste & Disposal Services Index

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Date
December 31, 2015
December 31, 2016
December 31, 2017
December 31, 2018
December 31, 2019
December 31, 2020

     Dow Jones
US Waste &
Disposal

Nasdaq

    US Ecology, Inc.    Composite     Services Index
 100.00
 121.15
 141.84
 142.00
 191.83
 204.42

$  100.00
$  108.87
$  141.13
$  137.12
$  187.44
$  271.64

 100.00
 137.27
 144.48
 180.57
 167.97
 105.72

$
$
$
$
$
$

$
$
$
$
$
$

(1) Total return assuming $100 invested on December 31, 2015 and reinvestment of dividends on the day they were paid.

The  performance  graph  above  is  being  furnished  solely  to  accompany  this  Annual  Report  on  Form  10-K  pursuant  to
Item 201(e) of Regulation S-K, is not being filed for purposes of Section 18 of the Exchange Act, and is not to be incorporated by
reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation
language in such filing.

Securities Authorized for Issuance under Equity Compensation Plans

Information  with  respect  to  compensation  plans  under  which  our  equity  securities  are  authorized  for  issuance  is  discussed  in
Item 12 of Part III of this Annual Report on Form 10-K.

Issuer Purchases of Equity Securities

On June 1, 2016, the Company’s Board of Directors authorized the repurchase of $25.0 million of the Company’s outstanding
common  stock.  On  May  29,  2018,  the  repurchase  program  was  extended.  On  December  30,  2019,  the  Company’s  Board  of
Directors’ authorized the repurchase of $25.0 million of the Company’s outstanding warrants (such dollar amount considered in
the aggregate with the dollar amount of shares of common stock repurchased by the Company, if any, under the Company’s share
repurchase program) as part of the Company’s share repurchase program. On June 6, 2020, the Company’s Board of Directors
authorization  to  repurchase  the  Company’s  outstanding  shares  of  common  stock  and  warrants  under  the  share  repurchase
program expired. In the future, the Board of Directors may consider reauthorizing the repurchase program at any time, and the
timing of any future repurchases of common stock or warrants will be based upon prevailing market conditions and other factors.
The Company may from time to time also consider other options for repurchasing some or all of its warrants, including but not
limited to a tender offer for all of the outstanding warrants. The

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Company repurchased 397,600 shares of common stock in an aggregate amount of $17.3 million under the repurchase program
during the year ended December 31, 2020.

The following table summarizes the purchases of shares of our common stock during the year ended December 31, 2020:

Period
January 1 to 31, 2020 (1)
February 1 to 29, 2020
March 1 to 31, 2020
April 1 to 30, 2020
May 1 to 31, 2020
June 1 to 30, 2020
July 1 to 31, 2020
August 1 to 31, 2020
September 1 to 30, 2020
October 1 to 31, 2020
November 1 to 30, 2020
December 1 to 31, 2020
Total

Total Number of

Average Price

    Shares Purchased     Paid per Share     

Shares Purchased as
Part of Publicly
Announced Plan or
Program

     Total Number of

     Approximate Dollar
Value of Shares that
May Yet be Purchased
Under the Plans or
Programs

 17,169

$
 —  

 397,600

 —  
 —  
 —  
 —  
 —  
 —  
 —
 —
 —
 414,769

$

 57.91  
 —  
 43.61  
 —  
 —  
 —  
 —
 —
 —
 —
 —
 —
 44.20  

 — $
 —  

 17,337,594

 —  
 —  
 —  
 —
 —
 —
 —
 —
 —
 17,337,594

$

 25,000,000
 25,000,000
 7,662,406
 7,662,406
 7,662,406
 —
 —
 —
 —
 —
 —
 —
 —

(1) Represents shares surrendered or forfeited in connection with certain employees’ tax withholding obligations related to the

vesting of shares of restricted stock.

Recent Sales of Unregistered Securities; Use of Proceeds from Registered Securities

We did not engage in any unregistered sales of our securities during the years ended December 31, 2020, 2019 and 2018.

ITEM 6. SELECTED FINANCIAL DATA

This item is no longer required as we have elected to early adopt the changes to Item 301 of Regulation S-K contained in SEC
Release No. 33-10890.

ITEM  7.  MANAGEMENT’S  DISCUSSION  AND  ANALYSIS  OF  FINANCIAL  CONDITION  AND  RESULTS  OF

OPERATIONS

General

US Ecology is a leading provider of environmental services to commercial and governmental entities. The Company addresses
the  complex  waste  management  and  response  needs  of  its  customers,  offering  treatment,  disposal  and  recycling  of  hazardous,
non-hazardous  and  radioactive  waste,  leading  emergency  response  and  standby  services,  and  a  wide  range  of  complementary
field  services.  US  Ecology’s  focus  on  safety,  environmental  compliance  and  best-in-class  customer  service  enables  us  to
effectively meet the needs of our customers and to build long-lasting relationships.

We have a network of fixed facilities and service centers operating primarily in the United States, Canada, the United Kingdom
and Mexico.  Our fixed  facilities  include  five  RCRA subtitle  C hazardous  waste landfills,  three  landfills  serving  waste streams
regulated by the RRC and one LLRW landfill. We also have various other TSDF facilities located throughout the United States.
These facilities generate revenue from fees charged to transport, recycle, treat and dispose of waste and to perform various field
services for our customers.

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Effective in the fourth quarter of 2020, we have made changes to the manner in which we manage our business, make operating
decisions and assess our performance. The energy waste business that was acquired through the NRC Merger now comprises our
Energy Waste segment. Prior to this change, the energy waste business was included in the Waste Solutions segment (formerly
“Environmental Services”). Throughout this Annual Report on Form 10-K, all periods presented have been recast to reflect these
changes. Under our new structure our operations are managed in three reportable segments reflecting our internal management
reporting structure and nature of services offered as follows:

Waste Solutions (formerly “Environmental Services”)—This segment provides safe and compliant specialty
waste management services including treatment, disposal, beneficial re-use, and recycling of hazardous, non-
hazardous, and other specialty waste at Company-owned treatment, storage, and disposal facilities, excluding
the services within our Energy Waste segment.

Field  Services  (formerly  “Field  &  Industrial  Services”)—This  segment  provides  safe  and  compliant
logistics and response solutions focusing on “in-field’ service offerings through our network of 10-day transfer
facilities. Our logistics solutions include specialty waste packaging, collection, transportation, and total waste
management.  Our  response  solutions  include  land  and  marine  based  emergency  response,  OSRO  standby
compliance,  remediation,  and  industrial  services.  The  Field  Services  segment  completes  our  vertically
integrated model and serves to increase waste volumes into our Waste Solutions segment.

Energy  Waste—This  segment  provides  safe  and  compliant  energy  waste  management  and  critical  support
services to up-stream oil and gas customers in the Permian and Eagle Ford basins primarily operating in Texas.
Services include spill containment and site remediation, equipment cleaning & maintenance services, specialty
equipment  rental,  including  tanks,  pumps  and  containment,  safety  monitoring  and  management  and
transportation  and  disposal.  This  segment  includes  all  of  the  energy  waste  business  of  the  legacy  NRC
operations and none of the legacy US Ecology operations.

In order to provide insight into the underlying drivers of our waste volumes and related T&D revenues, we evaluate period-to-
period  changes  in  our  T&D  revenue  for  our  Waste  Solutions  segment  based  on  the  industry  of  the  waste  generator, based on
North  American  Industry  Classification  System  (“NAICS”)  codes.  The  composition  of  the  Waste  Solutions  segment  T&D
revenues by waste generator industry for the years ended December 31, 2020 and 2019 were as follows:

% of Treatment and Disposal Revenue (1) for the
Year Ended December 31, 

Generator Industry
Chemical Manufacturing
Metal Manufacturing
Broker / TSDF
General Manufacturing
Government
Refining
Utilities
Transportation
Waste Management & Remediation
Mining, Exploration and Production
Other (2)

2020
19%
16%
12%
11%
8%
6%
6%
4%
3%
2%
13%

2019
17%
16%
13%
12%
9%
9%
3%
5%
2%
2%
12%

(1) Excludes all transportation service revenue.

(2)

Includes retail and wholesale trade, rate regulated, construction and other industries.

We also categorize our Waste Solutions T&D revenue as either “Base Business” or “Event Business” based on the underlying
nature of the revenue source.

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Base Business consists of waste streams from ongoing industrial activities and tends to be reoccurring in nature. We define Event
Business  as  non-recurring  projects  that  are  expected  to  equal  or  exceed  1,000  tons,  with  Base  Business  defined  as  all  other
business  not  meeting  the  definition  of  Event  Business.  The  duration  of  Event  Business  projects  can  last  from  a  several-week
cleanup of a contaminated site to a multiple year cleanup project.

During  2020,  Base  Business  revenue  declined  7%  compared  to  2019.  Base  Business  revenue  was  approximately  73%  of  total
2020  T&D  revenue,  down  from  78%  in  2019.  Our  business  is  highly  competitive  and  no  assurance  can  be  given  that  we  will
maintain these revenue levels or increase our market share.

A  significant  portion  of  our  disposal  revenue  is  attributable  to  discrete  Event  Business  projects  which  vary  widely  in  size,
duration  and  unit  pricing.  For  the  year  ended  December  31, 2020, approximately  27%  of  our  T&D revenue  was derived  from
Event Business projects. The one-time nature of Event Business, diverse spectrum of waste types received and widely varying
unit pricing necessarily creates variability in revenue and earnings. This variability may be influenced by general and industry-
specific  economic  conditions,  funding  availability,  changes  in  laws  and  regulations,  government  enforcement  actions  or  court
orders, public controversy, litigation, weather, commercial real estate, closed military bases and other project timing, government
appropriation and funding cycles and other factors. The types and amounts of waste received from Base Business also vary from
quarter to quarter.

This variability can also cause significant quarter-to-quarter and year-to-year differences in revenue, gross profit, gross margin,
operating  income  and  net  income.  While  we  pursue  many  projects  months  or  years  in  advance  of  work  performance,  cleanup
project  opportunities  routinely  arise  with  little  or  no  prior  notice.  These  market  dynamics  are  inherent  to  the  waste  disposal
business  and  are  factored  into  our  projections  and  externally  communicated  business  outlook  statements.  Our  projections
combine  historical  experience  with  identified  sales  pipeline  opportunities,  new  or  expanded  service  line  projections  and
prevailing market conditions.

We serve oil refineries, chemical production plants, steel mills, waste brokers/aggregators serving small manufacturers and other
industrial  customers  that  are  generally  affected  by  the  prevailing  economic  conditions  and  credit  environment.  Adverse
conditions may cause our customers as well as those they serve to curtail operations, resulting in lower waste production and/or
delayed  spending  on  off-site  waste  shipments,  maintenance,  waste  cleanup  projects  and  other  work.  Factors  that  can  impact
general  economic  conditions  and  the  level  of  spending  by  customers  include,  but  are  not  limited  to,  consumer  and  industrial
spending, increases in fuel and energy costs, conditions in the real estate and mortgage markets, labor and healthcare costs, access
to credit,  consumer confidence  and other global economic  factors  affecting  spending behavior. Market forces may also induce
customers  to  reduce  or  cease  operations,  declare  bankruptcy,  liquidate  or  relocate  to  other  countries,  any  of  which  could
adversely  affect  our  business.  To  the  extent  business  is  either  government  funded  or  driven  by  government  regulations  or
enforcement actions, we believe it is less susceptible to general economic conditions. Spending by government agencies may be
reduced due to declining tax revenues resulting from a weak economy or changes in policy. Disbursement of funds appropriated
by Congress may also be delayed for various reasons.

Geographical Information

For the year ended December 31, 2020, we derived $835.3 million, or 89%, of our revenue in the United States, $73.3 million, or
8%, of our revenue in Canada, $19.9 million, or 2%, of our revenue in the Europe, Middle East and Africa (“EMEA”) region, and
less than 1% of our revenue from other international regions. For the year ended December 31, 2019, we derived $589.1 million,
or 86%, of our revenue in the United States, $88.5 million, or 13%, of our revenue in Canada, $5.1 million, or 1%, of our revenue
in the EMEA region, and less than 1% of our revenue from other international regions. For the year ended December 31, 2018,
we derived $495.2 million or 87% of our revenue in the United States and $70.8 million or 13% of our revenue in Canada.

Additional  information  about  the  geographical  areas  in  which  our  revenues  are  derived  and  in  which  our  assets  are  located  is
presented  in  Note  4  and  Note  21  to  the  Consolidated  Financial  Statements  in  “Part  II,  Item  8.  Financial  Statements  and
Supplementary Data” of this Annual Report on Form 10-K.

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Significant Events

Our  results  of  operations  have  been  affected  by  certain  significant  events  during  the  past  three  fiscal  years  including,  but  not
limited to:

2020 Events

Impact  of  the  COVID-19  Pandemic: The  COVID-19  pandemic  continued  to  affect  our  business  through  the  fourth  quarter  of
2020. The impact of temporary closures and staff reductions by industrial facilities has yet to be fully assessed and understood.
We have experienced lower waste volumes resulting from these closures, which we expect to continue until industrial facilities
resume normal levels of production. We have also experienced, and expect to continue to experience, delays and deferments of
industrial cleaning services and some of our field services as our customers limit on site visitation and delay noncritical services
based  on  business  conditions.  However,  we  expect  the  Company’s  services-based  business  to  remain  stable  as  we  are
experiencing  growth  in  our  small  quantity  generation  services  and  our  emergency  response  business  has  seen  an  increase  in
COVID-19 decontamination projects.

Our  Energy  Waste  segment  has  been,  and  will  likely  continue  to  be,  adversely  impacted  as  energy  companies  reduce  capital
expenditures  as  a  result  of  downward  pressure  on  oil,  natural  gas  and  natural  gas  liquid  (“NGL”)  prices,  which  have  been
exacerbated during the COVID-19 pandemic. In the first half of 2020, oil prices moved downward to historic lows due in part to
concerns  about  the  COVID-19  pandemic  and  its  impact  on  near-term  worldwide  oil  demand  and  due  to  the  increase  in  oil
production by certain members of the Organization of Petroleum Exporting Countries (“OPEC”). While OPEC agreed in April
2020 to cut production, price recovery has been slow and may not return to pre-2020 levels for the foreseeable future. As a result,
customers in the upstream oil and gas exploration industry and some downstream refineries  in the energy sector have reduced
capital expenditures, which has adversely affected the demand for our energy waste services.

The Company’s ability to weather the negative impacts of the COVID-19 pandemic was bolstered by the Company’s cost-saving
measures implemented during the 2020 fiscal year, including cost control initiatives, a reduction to planned 2020 capital spending
of approximately 35% compared to the budgeted capital spending levels and suspension of the Company’s quarterly dividend,
commencing  with  the  second  quarter  of  2020  to  preserve  free  cash  flow  and  enhance  liquidity.  The  Company  has  also  taken
advantage of the provision of the Coronavirus Aid, Relief and Economic Security Act, which was signed into law on March 27,
2020, to defer of the payment of the employer portion of payroll tax withholdings, which yielded approximately $7.5 million of
additional  cash  savings  in  2020.  While  management  continues  to  closely  monitor  the  impact  of  the  COVID-19  pandemic  and
government  and  private  sector  responses  to  it  in  each  of  the  locations  and  sectors  in  which  the  Company  does  business,  we
believe that the Company’s strategy during the pandemic has increased the Company’s resiliency and positioned the Company to
take advantage of any post-pandemic recovery. Nevertheless, we expect that the COVID-19 pandemic will continue to affect our
results of operations for the foreseeable future. See “Part I, Item 1A – Risk Factors” in this Annual Report on Form 10-K.

Goodwill and Intangible Asset Impairment Charges: During the year ended December 31, 2020 the Company recorded goodwill
impairment  charges  of  $363.9  million  related  to  its  Energy  Waste  reporting  unit,  $14.4  million  related  to  its  Field  Services
reporting unit, $5.5 million related to its International reporting unit and intangible asset impairment charges of $21.1 million on
certain Field Services segment operating permit intangible assets. See Note 13 to the Consolidated Financial Statements in “Part
II, Item 8. Financial Statements and Supplementary Data” of this Annual Report on Form 10-K for additional information.

2019 Events

NRC Merger: On November 1, 2019, the Company completed its merger with NRC, a leader in comprehensive environmental,
compliance and waste management services to the marine and rail transportation, general industrial and energy industries. The
addition  of  NRC’s  substantial  service  network  strengthened  and  expanded  US  Ecology’s  suite  of  environmental  services,
including  oil  and  gas  exploration  and  production  landfill  disposal  capabilities,  and  expanded  opportunities  to  establish  US
Ecology  as  a  leader  in  standby  and  emergency  response  services.  The  total  merger  consideration  was  $1,008.2  million,  net  of
cash acquired, and was funded through the issuance of equity and with proceeds

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under  a  new  $450.0  million  seven-year  term  loan.  The  NRC  Merger  affects  the  comparability  of  2019  with  previous  years,
including as follows:

● Revenue and operating losses from the legacy NRC business for the period from November 1, 2019 to December 31,
2019  included  in  the  Company’s  consolidated  statements  of  operations  for  the  year  ended  December  31,  2019  were
$70.2 million and $9.1 million, respectively.

● We incurred $24.4 million of business development expenses during the year ended December 31, 2019 in connection

with the NRC Merger, primarily for due diligence, transaction expenses and business integration purposes.

● We recorded $309.5 million of intangible assets and $577.4 million of goodwill on our Consolidated Balance Sheet as a
result of the NRC Merger. Acquired finite-lived  intangibles will be amortized over their estimated useful life ranging
from two to 16 years. Goodwill and indefinite-lived intangibles are tested for impairment at least annually.

Acquisition  of  W.I.S.E.  Environmental  Solutions  Inc.  (now  known  as  US  Ecology  Sarnia):  On  August  1,  2019,  the  Company
acquired  US  Ecology  Sarnia,  an  equipment  rental  and  waste  services  company  based  in  Sarnia,  Ontario,  Canada.  The  total
purchase price was 23.5 million Canadian dollars, which translated to $17.9 million at the time of the transaction. We recorded
$6.2 million of intangible assets and $7.7 million of goodwill on the consolidated balance sheets as a result of the acquisition.
Amortizing intangible assets will be amortized  over a weighted average life of approximately  14 years. The acquisition of US
Ecology Sarnia was not material to our consolidated financial position or results of operations.

2018 Events

Explosion  at  Grand  View,  Idaho  Facility: On  November  17,  2018,  an  explosion  occurred  at  our  Grand  View,  Idaho  facility,
resulting in one employee fatality and injuries to other employees. The incident severely damaged the facility’s primary waste-
treatment  building  as  well  as  surrounding  waste  handling,  waste  storage,  maintenance  and  administrative  support  structures,
resulting in the closure of the entire facility that remained in effect through January 2019. The facility resumed limited operations
in  February  2019  and  regained  additional  capabilities  throughout  the  remainder  of  2019.    We  expect  the  completion  of  the
construction of a new treatment building and resumption of full capabilities in late 2020. In addition to initiating and conducting
our own investigation into the incident, we fully cooperated with IDEQ, the USEPA and OSHA to support their comprehensive
and independent investigations of the incident. On January 10, 2020, we entered into a settlement agreement with OSHA settling
a  complaint  made  by  OSHA  relating  to  the  incident  for  $50,000.  On  January  28,  2020,  the  Occupational  Safety  and  Health
Review Commission issued an order terminating the proceeding relating to such OSHA complaint. We have not otherwise been
named as a defendant in any action relating to the incident. We maintain workers’ compensation insurance, business interruption
insurance  and  liability  insurance  for  personal  injury,  property  and  casualty  damage.  We  believe  that  any  potential  third-party
claims associated with the explosion, in excess of our deductibles, are expected to be resolved primarily through our insurance
policies. Although we carry business interruption insurance, a disruption of our business caused by a casualty event, including the
full and partial closure of our Grand View, Idaho facility, may result in the loss of business, profits or customers during the time
of such closure. Accordingly, our insurance policies may not fully compensate us for these losses.

Acquisition  of  Ecoserv  Industrial  Disposal,  LLC:  On  November  14,  2018,  the  Company  acquired  Ecoserv  Industrial  Disposal,
LLC  (“Winnie”),  which  provides  non-hazardous  industrial  wastewater  disposal  solutions  and  employs  deep-well  injection
technology in the southern United States. The total purchase price was $87.2 million. We recorded $66.5 million of intangible
assets and $16.4 million of goodwill on the consolidated balance sheets as a result of the acquisition. Amortizing intangible assets
will  be  amortized  over  a  weighted  average  life  of  approximately  52  years.  The  acquisition  of  Winnie  was  not  material  to  our
consolidated financial position or results of operations either individually or when aggregated with other acquisitions completed
in 2018.

Acquisition  of  ES&H  of  Dallas,  LLC:  On  August  31,  2018,  the  Company  acquired  ES&H  of  Dallas,  LLC  (“ES&H  Dallas”),
which  provides  emergency  and  spill  response,  light  industrial  services  and  transportation  and  logistics  for  waste  disposal  and
recycling from locations in Dallas and Midland, Texas. The total purchase price was $21.3 million. We recorded $4.2

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Table of Contents

million  of  intangible  assets  and  $7.1  million  of  goodwill  on  the  consolidated  balance  sheets  as  a  result  of  the  acquisition.
Amortizing intangible assets will be amortized over a weighted average life of approximately 13 years. The acquisition of ES&H
Dallas was not material to our consolidated financial position or results of operations either individually or when aggregated with
other acquisitions completed in 2018.

Goodwill and Intangible Asset Impairment Charges: Based on the results of the Company’s interim assessment of the goodwill
and  intangible  assets  of  our  Mobile  Recycling  reporting  unit,  we  recorded  a  $1.4  million  goodwill  impairment  charge  and
impairment  charges  of  $1.8  million  and  $454,000  on  non-amortizing  intangible  assets  and  amortizing  intangible  assets,
respectively,  associated  with  our  Mobile  Recycling  business  in  the  third  quarter  of  2018.  See  Note  13  to  the  Consolidated
Financial Statements in “Part II, Item 8. Financial Statements and Supplementary Data” of this Annual Report on Form 10-K for
additional information.

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Table of Contents

Results of Operations

Our operating results and percentage of revenues for the years ended December 31, 2020, 2019 and 2018 were as follows:

$s in thousands
Revenue

Waste Solutions
Field Services
Energy Waste

Total
Gross Profit

Waste Solutions
Field Services
Energy Waste

Total

Selling, General &
Administrative Expenses

Waste Solutions
Field Services
Energy Waste
Corporate
Total

Adjusted EBITDA
Waste Solutions
Field Services
Energy Waste
Corporate
Total

Year Ended December 31, 

2020  vs. 2019

2019  vs. 2018

2020

     %     

2019

     %     

2018

     %      $ Change     % Change     $ Change     % Change  

$ 425,413  
   473,754  
 34,687
$ 933,854  

 46 %  $ 440,547  
 51 %     232,402  

 3 %  

 12,560

 64 %  $ 400,678  
 34 %     165,250  
 2 %  

 71 %  $  (15,134) 
 29 %     241,352  

 — n/m %  

 22,127

 100 %  $ 685,509  

 100 %     565,928  

 100 %  $ 248,345  

$ 161,282  
 82,266  
 1,501
$ 245,049  

 38 %  $ 170,992  
 35,007  
 17 %   
 4 %  
 3,835
 26 %  $ 209,834  

 39 %     147,475  
 22,619  
 15 %   
 31 %  
 31 %     170,094  

 37 %  $  (9,710) 
 47,259  
 14 %   
 (2,334)
 30 %  $  35,215  

 — n/m

$  28,814  
 58,027  
 24,249
 89,977  
$ 201,067  

 7 %  $  16,059  
 23,774  
 12 %   
 3,612
 70 %  
n/m
 97,678  
 22 %  $ 141,123  

 4 %   
 10 %   
 29 %  
n/m
 21 %   

 22,542  
 10,742  

 6 %  $  12,755  
 34,253  
 7 %   
 20,637
 — n/m
n/m
 (7,701) 
 16 %  $  59,944  

 59,056  
 92,340  

$ 174,385  
 69,869  
 1,157
 (75,252) 
$ 170,159  

 41 %  $ 184,133  
 26,707  
 15 %   
 3,626
 3 %  
n/m
 (65,100) 
 18 %  $ 149,366  

 42 %     160,179  
 18,457  
 11 %   
 29 %  
n/m
 (53,556) 
 22 %  $ 125,080  

 40 %  $  (9,748) 
 43,162  
 11 %   
 (2,469)
 — n/m
n/m
 (10,152) 
 22 %  $  20,793  

 (3)%  $  39,869  
 67,152  
 12,560

 104 %   
 176 %  
 36 %     119,581  

 (6)%   
 135 %   
 (61)%  
 17 %   

 23,517  
 12,388  
 3,835
 39,740  

 79 %   
 144 %   
 571 %  
 (8)%   
 42 %   

 (6,483) 
 13,032  
 3,612
 38,622  
 48,783  

 23,954  
 (5)%   
 8,250  
 162 %   
 3,626
 (68)%  
 16 %   
 (11,544) 
 14 %  $  24,286  

 10 %
 41 %
n/m
 21 %

 16 %
 55 %
n/m
 23 %

 (29)%
 121 %
n/m
 65 %
 53 %

 15 %
 45 %
n/m
 22 %
 19 %

Management uses Adjusted EBITDA as a financial measure to assess segment performance. Adjusted EBITDA is defined as net
(loss)  income  before  interest  expense,  interest  income,  income  tax  expense,  depreciation,  amortization,  share-based
compensation,  accretion  of  closure  and  post-closure  liabilities,  foreign  currency  gain/loss,  non-cash  property  and  equipment
impairment charges, non-cash goodwill and intangible asset impairment charges, gain on property insurance recoveries, business
development and integration expenses and other income/expense. The reconciliation of Net (loss) income to Adjusted EBITDA
for the years ended December 31, 2020, 2019 and 2018 is as follows:

$s in thousands
Net (loss) income

Income tax (benefit) expense
Interest expense
Interest income
Foreign currency loss (gain)
Other income
Property and equipment impairment charges
Goodwill and intangible asset impairment charges
Depreciation and amortization of plant and
equipment
Amortization of intangible assets
Share-based compensation
Accretion and non-cash adjustment of closure &
post-closure liabilities
Gain on property insurance recoveries
Business development and integration expenses

Adjusted EBITDA

2020
$ (389,359)
 (4,242)
 32,595
 (258)
 1,134
 (788)

Year Ended December 31, 
2019
$  33,140
 16,659
 19,239
 (605)
 733
 (455)
 25
 —

2018
$  49,595
 15,263
 12,130
 (215)
 (55)
 (2,630)

 404,900

 —  

 3,666

2020 vs. 2019

2019 vs. 2018

     $ Change     % Change     $ Change     % Change  
 (33)%
 9 %
 59 %
 181 %
 (1,433)%
 (83)%
n/m
 (100)%

 (1,275)%  $  (16,455) 
 1,396  
 7,109  
 (390) 
 788  
 2,175  
 25  
 (3,666)

$ (422,499) 
 (20,901) 
 13,356  
 347  
 401  
 (333) 
 (25) 

 (125)%   
 69 %   
 (57)%   
 55 %   
 73 %   
 (100)%   
n/m

 404,900

 —  

 66,561
 37,344
 6,651

 4,000

 41,423
 15,491
 5,544

 29,207
 9,645
 4,366

 25,138  
 21,853  
 1,107  

 61 %   
 141 %   
 20 %   

 12,216  
 5,846  
 1,178  

 —  

 11,621
$  170,159

 4,388
 (12,366)
 26,150
$ 149,366

 3,707
 (347)
 748
$ 125,080

 (388)
 12,366  
 (14,529) 
$  20,793  

 (9)%   

 681  
 (100)%     (12,019) 
 (56)%   
 25,402  
 14 %  $  24,286  

 42 %
 61 %
 27 %

 18 %
 3,464 %
 3,396 %  
19 %

Adjusted EBITDA is a complement to results provided in accordance with accounting principles generally accepted in the United
States (“GAAP”) and we believe that such information provides additional useful information to analysts, stockholders and other
users to understand the Company’s operating performance. Since Adjusted EBITDA is not a

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measurement  determined  in  accordance  with  GAAP  and  is  thus  susceptible  to  varying  calculations,  Adjusted  EBITDA  as
presented may not be comparable to other similarly titled measures of other companies. Items excluded from Adjusted EBITDA
are  significant  components  in  understanding  and  assessing  our  financial  performance.  Adjusted  EBITDA  should  not  be
considered in isolation or as an alternative to, or substitute for, net (loss) income, cash flows generated by operations, investing or
financing activities, or other financial statement data presented in the consolidated financial statements as indicators of financial
performance or liquidity.

Adjusted EBITDA has limitations as an analytical tool and should not be considered in isolation or a substitute for analyzing our
results as reported under GAAP. Some of the limitations are:

● Adjusted EBITDA does not reflect changes in, or cash requirements for, our working capital needs;

● Adjusted  EBITDA  does  not  reflect  our  interest  expense,  or  the  requirements  necessary  to  service  interest  or  principal

payments on our debt;

● Adjusted EBITDA does not reflect our income tax expenses or the cash requirements to pay our taxes;

● Adjusted  EBITDA  does  not  reflect  our  cash  expenditures  or  future  requirements  for  capital  expenditures  or  contractual

commitments;

● Although depreciation and amortization charges are non-cash charges, the assets being depreciated and amortized will often
have to be replaced in the future, and Adjusted EBITDA does not reflect any cash requirements for such replacements; and

● Adjusted EBITDA does not reflect our business development and integration expenses.

2020 Compared to 2019

Revenue

Total revenue increased 36% to $933.9 million in 2020, compared with $685.5 million in 2019. The acquired NRC operations
contributed $318.7 million of total revenue in 2020 compared with $70.2 million of total revenue for our period of ownership in
2019. Excluding NRC operations, total revenue was $615.2 million in 2020, compared with $615.3 million in 2019.

Waste Solutions

Waste Solutions segment revenue decreased 3% to $425.4 million in 2020, compared to $440.5 million in 2019. T&D revenue
decreased 1% in 2020 compared to 2019, primarily as a result of a 7% decrease in Base Business revenue and a 20% increase in
project-based Event Business revenue. Transportation and logistics service revenue decreased 12% in 2020 compared to 2019,
reflecting  Event  Business  projects  utilizing  less  of  the  Company’s  transportation  and  logistics  services.  Total  tons  of  waste
disposed of or processed across all of our facilities decreased 13% in 2020 compared to 2019.

T&D revenue from recurring Base Business waste generators decreased 7% in 2020 compared to 2019 and comprised 73% of
total  T&D  revenue.  The  decrease  in  Base  Business  T&D  revenue  compared  to  the  prior  year  primarily  reflects  lower  T&D
revenue  from  the  refining,  metal  manufacturing,  broker/TSDF,  chemical  manufacturing  and  general  manufacturing  industry
groups, partially offset by an increase in Base Business T&D revenue from the Other industry group.

T&D revenue from Event Business waste generators increased 20% in 2020 compared to 2019 and comprised 27% of total T&D
revenue. The increase in Event Business T&D revenue compared to the prior year primarily reflects higher T&D revenue from
the utilities, chemical manufacturing, metal manufacturing and waste management & remediation industry groups, partially offset
by decreases in Event Business T&D revenue from the refining and transportation industry groups.

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The following table summarizes combined Base Business and Event Business T&D revenue growth, within the Waste Solutions
segment, by waste generator industry for 2020 compared to 2019:

Utilities
Waste Management & Remediation
Other
Chemical Manufacturing
Government
General Manufacturing
Metal Manufacturing
Mining, Exploration & Production
Broker / TSDF
Transportation
Refining

Field Services

T&D Revenue Growth 
2020 vs. 2019
88%
45%
7%
2%
-2%
-2%
-3%
-4%
-10%
-15%
-34%

Field Services segment revenue increased 104% to $473.8 million in 2020 compared with $232.4 million in 2019. The acquired
NRC operations contributed $283.9 million of segment revenue in 2020, compared to $57.7 million of segment revenue for our
period of ownership in 2019. Excluding NRC operations, segment revenue increased  9% to $189.9 million  in 2020, compared
with $174.7 million in 2019. The increase in Field Services segment revenue (excluding NRC) is primarily attributable to higher
revenues from our Small Quantity Generation, Emergency Response, Total Waste Management and Remediation business lines,
partially offset by lower revenues from our Transportation and Logistics and Industrial Services business lines.

Energy Waste

Our Energy Waste segment was added subsequent to, and as a result of, the NRC Merger on November 1, 2019. This segment
includes all of the energy waste business of the legacy NRC operations and none of the legacy US Ecology operations. Energy
Waste segment revenue was $34.7 million in 2020 compared with $12.6 million for our period of ownership in 2019.

Gross Profit

Total gross profit increased 17% to $245.0 million in 2020, up from $209.8 million in 2019. Total gross margin was 26% in 2020
compared with 31% in 2019. The acquired NRC operations contributed $56.5 million of total gross profit in 2020 compared with
$14.0 million of total gross profit for our period of ownership in 2019. Excluding NRC operations, total gross profit decreased
4% to $188.5 million in 2020, compared with $195.8 million in 2019. Excluding NRC operations, total gross margin was 31% in
2020 compared with 32% in 2019.

Waste Solutions

Waste Solutions segment gross profit decreased 6% to $161.3 million in 2020, down from $171.0 million in 2019. Total segment
gross margin was 38% in 2020 compared with 39% in 2019. Waste Solutions segment gross profit in 2019 includes $7.0 million
in business interruption insurance recoveries for lost profits related to hurricane damage at our Robstown, Texas facility in 2017
and the incident at our Grand View, Idaho facility in the fourth quarter of 2018. T&D gross margin was 42% for 2020 compared
with 45% for 2019.

Field Services

Field Services segment gross profit increased 135% to $82.3 million in 2020, up from $35.0 million in 2019. Total segment gross
margin was 17% for 2020 compared with 15% for 2019. The acquired NRC operations contributed $55.0 million of

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segment gross profit in 2020 compared with $10.2 million of segment gross profit for our period of ownership in 2019. Excluding
NRC operations, segment gross profit increased 10% to $27.3 million in 2020, compared with $24.8 million in 2019. Excluding
NRC operations, segment gross margin was 14% in both 2020 and 2019.

Energy Waste

Our Energy Waste segment was added subsequent to, and as a result of, the NRC Merger on November 1, 2019. This segment
includes all of the energy waste business of the legacy NRC operations and none of the legacy US Ecology operations. Energy
Waste  segment  gross  profit  was  $1.5  million  in  2020  compared  with  $3.8  million  for  our  period  of  ownership  in  2019.  Total
segment gross margin was 4% in 2020 compared with 31% for our period of ownership in 2019. The decrease in segment gross
margin was attributable to a less favorable mix of fixed verses variable costs on lower revenues in 2020 compared to our period
of ownership in 2019.

Selling, General and Administrative Expenses (“SG&A”)

Total  SG&A  increased  to  $201.1  million,  or  22%  of  total  revenue,  in  2020  compared  with  $141.1  million,  or  21%  of  total
revenue,  in  2019.  The  acquired  NRC  operations  contributed  $83.4  million  of  SG&A  in  2020  compared  with  $23.1  million  of
SG&A  for  our  period  of  ownership  in  2019.  Excluding  NRC  operations,  total  SG&A  was  $117.7  million,  or  19%  of  total
revenue, in 2020 compared with $118.1 million, or 19% of total revenue, in 2019.

Waste Solutions

Waste  Solutions  segment  SG&A  increased  79%  to  $28.8  million,  or  7%  of  segment  revenue,  in  2020  compared  with
$16.1 million, or 4% of segment revenue, in 2019. The increase in Waste Solutions segment SG&A primarily reflects property
insurance recoveries of $12.4 million recognized in 2019 related to the incident at our Grand View, Idaho facility in the fourth
quarter of 2018 as well as higher insurance costs and higher losses on disposal of fixed assets in 2020 compared to 2019, partially
offset by higher insurance proceeds for damaged property and equipment and lower employee incentive compensation in 2020
compared to 2019.

Field Services

Field  Services  segment  SG&A  increased  144%  to  $58.0  million,  or  12%  of  segment  revenue,  in  2020  compared  with
$23.8 million, or 10% of segment revenue, in 2019. The acquired NRC operations contributed $42.3 million of segment SG&A
in 2020 compared with $8.6 million of segment SG&A for our period of ownership in 2019. Excluding NRC operations, segment
SG&A increased to $15.7 million, or 8% of segment revenue, in 2020 compared with $15.2 million, or 9% of segment revenue,
in 2019. The increase in Field Services segment SG&A (excluding NRC) primarily reflects higher property rental costs, higher
intangible asset amortization expense, higher property tax expenses and higher employee labor costs in 2020 compared to 2019,
partially offset by lower travel-related expenses in 2020 compared to 2019.

Energy Waste

Our Energy Waste segment was added subsequent to, and as a result of, the NRC Merger on November 1, 2019. This segment
includes all of the energy waste business of the legacy NRC operations and none of the legacy US Ecology operations. Energy
Waste segment SG&A was $24.2 million, or 70% of segment revenue, in 2020 compared with $3.6 million, or 29% of segment
revenue, for our period of ownership in 2019. The increase in segment SG&A as a percentage of segment revenue is attributable
to a less favorable mix of fixed verses variable costs on lower revenues in 2020 compared to our period of ownership in 2019.

Corporate

Corporate SG&A was $90.0 million, or 10% of total revenue, in 2020 compared with $97.7 million, or 14% of total revenue, in
2019.  The  acquired  NRC  operations  contributed  $16.8  million  of  Corporate  SG&A  in  2020  compared  with  $10.8  million  of
Corporate SG&A for our period of ownership in 2019. Excluding NRC operations, Corporate SG&A

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decreased to $73.2 million, or 12% of total revenue, in 2020 compared with $86.8 million, or 14% of total revenue, in 2019. The
decrease  in  Corporate  SG&A  (excluding  NRC)  primarily  reflects lower  business  development  and  integration  expenses,   the
recognition of a favorable legal settlement of $2.5 million in 2020 for the reimbursement of health insurance related overcharges
in  prior  years  and  lower  travel  related  expenses  in  2020  compared  to  2019,  partially  offset  by  higher  labor  and  incentive
compensation costs, higher information technology related expenses and higher insurance costs in 2020 compared to 2019.

Components of Adjusted EBITDA

Income tax expense

Our effective income tax rate for 2020 was 1.1% compared to 33.5% in 2019. The decrease was primarily due to non-deductible
goodwill impairment charges, partially offset by tax benefit on losses.

Interest expense

Interest expense was $32.6 million in 2020 compared with $19.2 million in 2019. The increase is the result of higher outstanding
debt  levels  primarily  attributable  to  our  new  $450.0  million  Term  Loan  used  to  refinance  the  indebtedness  of  NRC  and  pay
transaction  expenses  incurred  in  connection  with  the  NRC  Merger,  as  well  as  higher  borrowings  on  our  Revolving  Credit
Facility, primarily used to fund share repurchases in the first quarter of 2020, partially offset by the impact of lower interest rates
in  2020  compare  to  2019.  See  Note  16  to  the  Consolidated  Financial  Statements  in  “Part  II,  Item  8.  Financial  Statements  and
Supplementary Data” of this Annual Report on Form 10-K for additional information about the Company’s debt.

Foreign currency loss (gain)

We recognized a $1.1 million non-cash foreign currency loss in 2020 compared with a $733,000 non-cash foreign currency loss
in 2019. Foreign currency gains and losses reflect changes in business activity conducted in a currency other than the USD, our
functional currency. Additionally, we established intercompany loans with certain of our Canadian subsidiaries, whose functional
currency is the Canadian dollar (“CAD”) as part of a tax and treasury management strategy allowing for repayment of third-party
bank debt. These intercompany loans are payable by our Canadian subsidiaries to US Ecology in CAD requiring us to revalue the
outstanding loan balance through our statements of operations based on USD/CAD currency movements from period to period.
At December 31, 2020, we had $32.9 million of intercompany loans subject to currency revaluation.

Other income

Other income was $788,000 in 2020 compared with other income of $455,000 in 2019.

Goodwill and intangible asset impairment charges

During the year ended December 31, 2020 the Company recorded goodwill impairment charges of $363.9 million related to its
Energy  Waste  reporting  unit,  $14.4  million  related  to  its  Field  Services  reporting  unit,  $5.5  million  related  to  its  International
reporting unit and intangible asset impairment charges of $21.1 million on certain operating permit intangible assets. See Note 13
to  the  Consolidated  Financial  Statements  in  “Part  II,  Item  8.  Financial  Statements  and  Supplementary  Data”  of  this  Annual
Report on Form 10-K for additional information.

Depreciation and amortization of plant and equipment

Depreciation  and  amortization  expense  increased  61%  to  $66.6  million  in  2020  compared  with  $41.4  million  in  2019.  The
acquired NRC operations contributed $28.1 million of depreciation and amortization expense in 2020 compared with $5.5 million
of  depreciation  and  amortization  expense  for  our  period  of  ownership  in  2019.  Excluding  NRC  operations,  depreciation  and
amortization  expense  was  $38.5  million  in  2020  compared  with  $35.9  million  in  2019,  primarily  reflecting  incremental
depreciation expense on plant and equipment assets placed in service in 2020.

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Amortization of intangibles

Intangible  assets  amortization  expense  increased  141%  to  $37.3  million  in  2020  compared  with  $15.5  million  in  2019.  The
acquired NRC operations contributed $25.4 million in 2020 compared with $3.9 million of intangible assets amortization expense
for  our  period  of  ownership  in  2019.  Excluding  NRC  operations,  intangible  assets  amortization  expense  was  $11.9  million  in
2020 compared with $11.6 million in 2019.

Share-based compensation

Share-based compensation expense increased 20% to $6.7 million in 2020, compared with $5.5 million 2019, primarily reflecting
incremental  share-based  compensation  associated  with  replacement  restricted  stock  units  issued  in  connection  with  the  NRC
Merger.

Accretion and non-cash adjustment of closure and post-closure liabilities

Accretion and non-cash adjustment of closure and post-closure liabilities decreased 9% to $4.0 million in 2020 compared with
$4.4 million in 2019, primarily reflecting higher favorable non-cash adjustments to post-closure liabilities recorded in 2019 due
to changes in cost estimates and timing associated with closed sites.

Gain on property insurance recoveries

The Company recognized gains on property-related insurance recoveries of $12.4 million in 2019 related to the incident at our
Grand View, Idaho facility in the fourth quarter of 2018.

Business development and integration expenses

Business development and integration expenses decreased to $11.6 million in 2020, compared to $26.2 million in 2019. Business
development  and  integration  expenses  in  2020  were  primarily  related  to  post-merger  integration  expenses  associated  with  the
NRC  Merger.  Business  development  and  integration  expenses  in  2019  included  $24.4  million  of  pre-acquisition  business
development costs and post-acquisition integration expenses associated with the NRC Merger.

2019 Compared to 2018

Revenue

Total revenue increased 21% to $685.5 million in 2019, compared with $565.9 million in 2018. The acquired NRC operations
contributed  $70.2  million  of  total  revenue  for  our  period  of  ownership  in  2019.  Excluding  NRC  operations,  total  revenue
increased 9% to $615.3 million in 2019, compared with $565.9 million in 2018.

Waste Solutions

Waste Solutions segment revenue increased 10% to $440.5 million in 2019, compared to $400.7 million in 2018. T&D revenue
increased 12% in 2019 compared to 2018, primarily as a result of a 8% increase in Base Business revenue and a 19% increase in
project-based  Event  Business  revenue.  2019  transportation  and  logistics  service  revenue  (excluding  NRC)  was  consistent  with
2018. Tons of waste disposed of or processed increased 34% in 2019 compared to 2018, primarily reflecting incremental volumes
disposed at our Winnie, Texas deep-well facility that was acquired in the fourth quarter of 2018 as well as a 6% increase in tons
of waste disposed of or processed at our other facilities in 2019 compared to 2018.

T&D revenue  from  recurring  Base Business waste generators  increased  8% in 2019 compared  to 2018 and comprised  78% of
total  T&D  revenue.  The  increase  in  Base  Business  T&D  revenue  compared  to  the  prior  year  primarily  reflects  higher  T&D
revenue from the broker/TSDF, transportation, “Other,” general manufacturing and government industry groups, partially offset
by lower T&D revenue from the refining industry group.

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T&D revenue from Event Business waste generators increased 19% in 2019 compared to 2018 and comprised 22% of total T&D
revenue. The increase in Event Business T&D revenue compared to the prior year primarily reflects higher T&D revenue from
the government, transportation, chemical manufacturing and metal manufacturing industry groups, partially offset by lower T&D
revenue from the “Other” industry group.

The following table summarizes combined Base Business and Event Business T&D revenue growth, within the Waste Solutions
segment, by waste generator industry for 2019 compared to 2018:

Transportation
Government
Mining, Exploration & Production
Broker / TSDF
Metal Manufacturing
Chemical Manufacturing
General Manufacturing
Utilities
Other
Refining
Waste Management & Remediation

Field Services

T&D Revenue Growth
2019 vs. 2018
110%
42%
19%
12%
11%
9%
5%
1%
-2%
-6%
-25%

Field Services segment revenue increased 41% to $232.4 million in 2019 compared with $165.3 million in 2018. The acquired
NRC operations contributed $57.7 million of segment revenue for our period of ownership in 2019. Excluding NRC operations,
segment revenue increased 6% to $174.7 million in 2019, compared with $165.3 million in 2018. The increase in Field Services
segment  revenue  (excluding  NRC)  is  primarily  attributable  to  higher  Transportation  and  Logistics  revenues,  growth  in  our
Emergency Response business line primarily as a result of our acquisition of ES&H Dallas in the third quarter of 2018 and higher
revenues  from  our  Small  Quantity  Generation  business  line,  partially  offset  by  lower  revenues  from  our  Total  Waste
Management and Industrial Services business lines.

Energy Waste

Our Energy Waste segment was added subsequent to, and as a result of, the NRC Merger on November 1, 2019. This segment
includes all of the energy waste business of the legacy NRC operations and none of the legacy US Ecology operations. Energy
Waste segment revenue was $12.6 million for our period of ownership in 2019.

Gross Profit

Total gross profit increased 23% to $209.8 million in 2019, up from $170.1 million in 2018. Total gross margin was 31% in 2019
compared  with  30%  in  2018.  The  acquired  NRC  operations  contributed  $14.0  million  of  total  gross  profit  for  our  period  of
ownership in 2019. Excluding NRC operations, total gross profit increased 15% to $195.8 million in 2019, compared with $170.1
million in 2018. Excluding NRC operations, total gross margin was 32% in 2019 compared with 30% in 2018.

Waste Solutions

Waste Solutions segment gross profit increased 16% to $171.0 million in 2019, up from $147.5 million in 2018. Total segment
gross margin was 39% in 2019 compared with 37% in 2018. Waste Solutions segment gross profit in 2019 includes $7.0 million
in business interruption insurance recoveries for lost profits related to hurricane damage at our Robstown, Texas facility in 2017
and the incident at our Grand View, Idaho facility in the fourth quarter of 2018. T&D gross margin was 45% for 2019 compared
with 42% for 2018.

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Field Services

Field Services segment gross profit increased 55% to $35.0 million in 2019, up from $22.6 million in 2018. Total segment gross
margin  was  15%  for  2019  compared  with  14%  for  2018.  The  acquired  NRC  operations  contributed  $10.2  million  of  segment
gross profit for our period of ownership in 2019. Excluding NRC operations, segment gross profit increased 10% to $24.8 million
in  2019,  compared  with  $22.6  million  in  2018.  Excluding  NRC  operations,  segment  gross  margin  was  14%  in  both  2019  and
2018.

Energy Waste

Our Energy Waste segment was added subsequent to, and as a result of, the NRC Merger on November 1, 2019. This segment
includes all of the energy waste business of the legacy NRC operations and none of the legacy US Ecology operations. Energy
Waste segment gross profit was $3.8 million for our period of ownership in 2019. Total segment gross margin was 31% for our
period of ownership in 2019.

Selling, General and Administrative Expenses (“SG&A”)

Total SG&A increased to $141.1 million, or 21% of total revenue, in 2019 compared with $92.3 million, or 16% of total revenue,
in 2018. The acquired NRC operations contributed $23.1 million of SG&A for our period of ownership in 2019. Excluding NRC
operations, total SG&A increased to $118.0 million, or 19% of total revenue, in 2019 compared with $92.3 million, or 16% of
total revenue, in 2018.

Waste Solutions

Waste  Solutions  segment  SG&A  decreased  29%  to  $16.1  million,  or  4%  of  segment  revenue,  in  2019  compared  with
$22.5 million, or 6% of segment revenue, in 2018. The decrease in Waste Solutions segment SG&A primarily reflects property
insurance recoveries of $12.4 million recognized in 2019 related to the incident at our Grand View, Idaho facility in the fourth
quarter  of  2018,  partially  offset  by  higher  insurance  costs,  higher  intangible  asset  amortization  expense  and  higher  labor  and
incentive compensation costs.

Field Services

Field  Services  segment  SG&A  increased  121%  to  $23.8  million,  or  10%  of  segment  revenue,  in  2019  compared  with
$10.7 million, or 7% of segment revenue, in 2018. The acquired NRC operations contributed $8.6 million of segment SG&A for
our  period  of  ownership  in  2019.  Excluding  NRC  operations,  segment  SG&A  increased  to  $15.2  million,  or  9%  of  segment
revenue,  in  2019  compared  with  $10.7  million,  or  7%  of  segment  revenue,  in  2018.  The  increase  in  Field  Services  segment
SG&A (excluding NRC) primarily reflects incremental costs associated with new facilities.

Energy Waste

Our Energy Waste segment was added subsequent to, and as a result of, the NRC Merger on November 1, 2019. This segment
includes all of the energy waste business of the legacy NRC operations and none of the legacy US Ecology operations. Energy
Waste segment SG&A was $3.6 million, or 29% of segment revenue, for our period of ownership in 2019.

Corporate

Corporate SG&A was $97.7 million, or 14% of total revenue, in 2019 compared with $59.1 million, or 10% of total revenue, in
2018.  The  acquired  NRC  operations  contributed  $10.9  million  of  Corporate  SG&A  for  our  period  of  ownership  in  2019.
Excluding  NRC  operations,  Corporate  SG&A  increased  to  $86.8  million,  or  14%  of  total  revenue,  in  2019  compared  with
$59.1  million,  or  10%  of  total  revenue,  in  2018.  The  increase  in  Corporate  SG&A  (excluding  NRC)  primarily  reflects  higher
business development and integration expenses (including $17.0 million of expenses related to the NRC Merger), higher labor
and incentive compensation costs and higher information technology related expenses in 2019 compared to 2018.

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Components of Adjusted EBITDA

Income tax expense

Our  effective  income  tax  rate  for  2019  was  33.5%  compared  to  23.5%  in  2018.  The  increase  was  primarily  the  result  of  an
increase in non-deductible transaction expenses incurred as a result of the NRC Merger, and the implementation of certain tax
planning strategies in 2018 that resulted in a one-time reduction to the 2018 effective income tax rate.

Interest expense

Interest expense was $19.2 million in 2019 compared with $12.1 million in 2018. The increase is the result of higher outstanding
debt  levels  primarily  attributable  to  our  new  $450.0  million  Term  Loan  used  to  refinance  the  indebtedness  of  NRC  and  pay
transaction expenses incurred in connection with the NRC Merger. See Note 16 to the Consolidated Financial Statements in “Part
II, Item 8. Financial Statements and Supplementary Data” of this Annual Report on Form 10-K for additional information about
the Company’s debt.

Foreign currency gain (loss)

We recognized a $733,000 non-cash foreign currency loss in 2019 compared with a $55,000 non-cash foreign currency gain in
2018.  Foreign  currency  gains  and  losses  reflect  changes  in  business  activity  conducted  in  a  currency  other  than  the  USD,  our
functional currency. Additionally, we established intercompany loans with certain of our Canadian subsidiaries, whose functional
currency is the Canadian dollar (“CAD”) as part of a tax and treasury management strategy allowing for repayment of third-party
bank debt. These intercompany loans are payable by our Canadian subsidiaries to US Ecology in CAD requiring us to revalue the
outstanding loan balance through our statements of operations based on USD/CAD currency movements from period to period.
At December 31, 2019, we had $31.5 million of intercompany loans subject to currency revaluation.

Other income

Other income was $455,000 in 2019 compared with other income of $2.6 million in 2018. Other income for 2018 includes a $2.0
million  gain  on  the  issuance  of  a  property  easement  on  a  portion  of  unutilized  Company-owned  land  at  one  of  our  operating
facilities.

Impairment charges

Based on the results of our 2018 interim assessment of the goodwill and intangible assets of our Mobile Recycling reporting unit,
which is part of our Waste Solutions segment, we recorded impairment charges of $3.7 million in the third quarter of 2018. See
Note  13  to  the  Consolidated  Financial  Statements  in  “Part  II,  Item  8.  Financial  Statements  and  Supplementary  Data”  of  this
Annual Report on Form 10-K for additional information on these impairment charges.

Depreciation and amortization of plant and equipment

Depreciation  and  amortization  expense  increased  42%  to  $41.4  million  in  2019  compared  with  $29.2  million  in  2018.  The
acquired NRC operations contributed $5.5 million of depreciation and amortization expense for our period of ownership in 2019.
Excluding  NRC operations,  depreciation  and  amortization  expense  was $35.9 million  in  2019 compared  with  $29.2 million  in
2018, primarily reflecting additional depreciation expense on assets placed in service, including assets associated with the ES&H
Dallas, Winnie and US Ecology Sarnia acquisitions.

Amortization of intangibles

Intangible assets amortization expense increased 61% to $15.5 million in 2019 compared with $9.6 million in 2018. The acquired
NRC  operations  contributed  $3.9  million  of  intangible  assets  amortization  expense  for  our  period  of  ownership  in  2019.
Excluding NRC operations, intangible assets amortization expense was $11.6 million in 2019 compared with $9.6

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million in 2018, primarily reflecting additional amortization of intangible assets recorded as a result of ES&H Dallas, Winnie and
US Ecology Sarnia acquisitions.

Share-based compensation

Share-based  compensation  expense  increased  27%  to  $5.5 million  in  2019, compared  with  $4.4  million  2018  as  a  result  of  an
increase  in  equity-based  awards  granted  to  employees  and  incremental  post-merger  share-based  compensation  of  $605,000
associated with the replacement restricted stock units issued in connection with NRC Merger.

Accretion and non-cash adjustment of closure and post-closure liabilities

Accretion  and  non-cash  adjustment  of  closure  and  post-closure  liabilities  increased  to  $4.4  million  in  2019  compared  with
$3.7 million in 2018, primarily reflecting higher favorable non-cash adjustments to post-closure liabilities recorded in 2018 due
to changes in cost estimates and timing associated with closed sites.

Gain on property insurance recoveries

The Company recognized gains on property-related insurance recoveries of $12.4 million in 2019 and $347,000 in 2018 related
to the incident at our Grand View, Idaho facility in the fourth quarter of 2018.

Business development and integration expenses

Business  development  and  integration  expenses  increased  to  $26.2  million  in  2019,  compared  to  $748,000  in  2018,  primarily
attributable to $24.4 million of pre-acquisition business development costs and post-acquisition integration expenses associated
with the NRC Merger in 2019.  The remaining  increase  is attributable  to a larger  number of business development  projects  in
2019 compared to 2018.

Liquidity and Capital Resources

We  are  continually  evaluating  the  impact  of  the  COVID-19  pandemic  on  our  financial  condition  and  liquidity.  Although  the
situation  remains  uncertain,  we  believe  that  we  have  sufficient  cash  flow  from  operations  and  available  borrowings  under  the
Revolving Credit  Facility  to execute  our business strategy  in the short and longer term.  The Company’s ability  to weather the
negative  impacts  of  the  COVID-19  pandemic  was  bolstered  by  the  Company’s  cost-saving  measures  implemented  during  the
2020 fiscal year, including cost control initiatives, a reduction to planned 2020 capital spending of approximately 35% compared
to  the  budgeted  capital  spending  levels;  and  suspension  of  the  Company’s  quarterly  dividend,  commencing  with  the  second
quarter of 2020 to preserve free cash flow and enhance liquidity. The Company has also taken advantage of the provision of the
Coronavirus Aid, Relief and Economic Security Act, which was signed into law on March 27, 2020, to defer the payment of the
employer  portion  of  payroll  tax  withholdings,  which  yielded  approximately  $7.5  million  of  additional  cash  savings  in  2020.
While  management  continues  to  closely  monitor  the  impact  of  the  COVID-19  pandemic  and  government  and  private  sector
responses to it in each of the locations and sectors in which the Company does business, we believe that the Company’s strategy
during  the  pandemic  has  increased  the  Company’s  resiliency  and  positioned  the  Company  to  take  advantage  of  any  post-
pandemic recovery.

Our primary sources of liquidity are cash and cash equivalents, cash generated from operations and borrowings under the Credit
Agreement.  At December  31, 2020, we had $73.8 million  in unrestricted  cash and cash equivalents  immediately  available  and
$121.9 million of borrowing capacity, subject to our leverage covenant limitation, available under our Revolving Credit Facility.
We  assess  our  liquidity  in  terms  of  our  ability  to  generate  cash  to  fund  our  operating,  investing  and  financing  activities.  Our
primary ongoing cash requirements are funding operations, capital expenditures, paying principal and interest on our long-term
debt, and paying declared dividends pursuant to our dividend policy. We believe future operating cash flows will be sufficient to
meet  our  future  operating,  investing  and  dividend  cash  needs  for  the  foreseeable  future,  and  that  the  cost-saving  measures
described above have strengthened our ability to withstand the adverse impact of the COVID-19 pandemic. Furthermore, existing
cash balances and availability of additional borrowings under the Credit Agreement provide additional sources of liquidity should
they  be  required.  On  June  26,  2020,  Predecessor  US  Ecology  amended  the  Credit  Agreement  to  provide  for  a  covenant  relief
period through the earlier of March 31, 2022

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and  the  date  Predecessor  US  Ecology  elects  to  end  such  covenant  relief  period  pursuant  to  the  terms  therein.  See  additional
information on the Third Amendment under “Amendments to the Credit Agreement” below.

Operating Activities. In 2020, net cash provided by operating  activities  was $107.1 million.  This primarily  reflects  net loss of
$389.4  million,  non-cash  goodwill  and  intangible  asset  impairment  charges  of  $404.9  million,  non-cash  depreciation,
amortization  and  accretion  of  $107.9  million,  a  decrease  in  accounts  receivable  of  $8.4 million  and  share-based  compensation
and  business  development  and  integration  expenses  of  $7.8  million,  partially  offset  by  a  decrease  in  accounts  payable  and
accrued liabilities of $13.6 million, an increase in income taxes receivable of $7.0 million and an increase in other assets of $5.4
million. Impacts on net loss are due to the factors discussed above under “Results of Operations.” Changes in accounts receivable
and accounts payable and accrued liabilities are attributable to the timing of payments from customers and payments to vendors
for products and services. The increase in other assets is primarily attributable to prepaid insurance costs and refundable deposits
associated  with  our  annual  renewal  process.  The  increase  in  income  taxes  receivable  is  primarily  attributable  to  net  operating
losses  in  2020  that  will  be  carried  back  to  prior  years  with  taxable  income  for  a  refund  of  taxes  paid  in  those  prior  tax  years,
which were at higher tax rates.

We  calculate  days  sales  outstanding  (“DSO”)  as  a  rolling  four  quarter  average  of  our  net  accounts  receivable  divided  by  our
quarterly  revenue.  Our  net  accounts  receivable  balance  for  the  DSO  calculation  includes  trade  accounts  receivable,  net  of
allowance for doubtful accounts and unbilled accounts receivable, adjusted for changes in deferred revenue. DSO as of December
31, 2020, was 86 days as compared to 84 days as of December 31, 2019.

In 2019, net cash provided by operating activities was $79.6 million. This primarily reflects net income of $33.1 million, non-
cash  depreciation,  amortization  and  accretion  of  $61.3  million,  share-based  compensation  and  business  development  and
integration expenses of $9.3 million, an increase in accrued salaries and benefits of $8.3 million and deferred income taxes of
$6.6 million, partially offset by a $12.4 million gain on insurance proceeds from damaged property and equipment, a decrease in
accounts payable and accrued liabilities of $10.7 million, an increase in accounts receivable of $9.4 million and an increase in
income  taxes  receivable  of  $4.2  million.  Impacts  on  net  income  are  due  to  the  factors  discussed  above  under  “Results  of
Operations.” The increase in accrued salaries and benefits is primarily attributable to higher employee-incentive plan accruals and
higher employee-termination benefits accruals associated with the NRC Merger in 2019. The decrease in accounts payable and
accrued  liabilities  is  primarily  attributable  to  the  timing  of  payments  to  vendors  for  products  and  services.  We  recognized
property-related  insurance  recoveries  in  2019  related  to  the  incident  at  our  Grand  View, Idaho  facility  in  the  fourth  quarter  of
2018.  The  increase  in  receivables  is  primarily  attributable  to  the  timing  of  customer  payments.  The  change  in  income  taxes
receivable  and deferred income taxes is primarily attributable  to the timing of income tax payments as well as the Company’s
ability to use NRC’s tax attributes to offset cash taxes for 2019.

In 2018, net cash provided by operating activities was $81.5 million. This primarily reflects net income of $49.6 million, non-
cash depreciation, amortization and accretion of $42.6 million, an increase in accounts payable and accrued liabilities of $14.3
million,  deferred  income  taxes  of  $5.9  million,  share-based  compensation  expense  of  $4.4  million  and  non-cash  impairment
charges of $3.7 million, partially offset by an increase in accounts receivable of $32.3 million and an increase in income taxes
receivable  of  $7.1  million.  Impacts  on  net  income  are  due  to  the  factors  discussed  above  under  “Results  of  Operations.”  The
decrease in accounts payable and accrued liabilities is primarily attributable to the timing of payments to vendors for products
and services. The increase in receivables is primarily attributable to the timing of customer payments. Changes in income taxes
receivable are primarily attributable to the timing of income tax payments.

Investing Activities. In 2020, net cash used in investing activities was $57.6 million, primarily related to capital expenditures of
$57.4  million  and  the  acquisition  of  Impact  Environmental,  Inc.  for  $3.3  million  in  January  2020.  Capital  projects  consisted
primarily of equipment purchases and infrastructure upgrades at our corporate and operating facilities.

In 2019, net cash used in investing activities was $455.7 million, primarily used to refinance the indebtedness of NRC and pay
transaction  expenses  incurred  in  connection  with  the  NRC  Merger  in  the  aggregate  amount  of  $381.7  million,  net  of  cash
acquired, capital expenditures of $58.1 million, the acquisition of US Ecology Sarnia for $17.9 million, a $7.9 million investment
in the preferred stock of a privately held company and a $4.0 million payment of a contingent consideration liability acquired in
connection with the NRC Merger, partially offset by property insurance proceeds of $12.7 million related to the incident at our
Grand View, Idaho facility in the fourth quarter of 2018. Significant capital projects included

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construction  of  additional  disposal  capacity  at  our  Belleville,  Michigan;  Robstown,  Texas;  and  Blainville,  Québec,  Canada
facilities, as well as equipment purchases and infrastructure upgrades at our corporate and operating facilities.

In 2018, net cash used in investing activities was $148.8 million, primarily related the acquisition of Winnie for $87.1 million, the
acquisition  of  ES&H  Dallas  for  $21.3  million,  and  capital  expenditures  of  $40.8  million.  Significant  capital  projects  included
continuing  construction  of additional  disposal  capacity  and railway  expansions  at our Blainville,  Québec, Canada location  and
infrastructure upgrades at our corporate and operating facilities.

Financing Activities. During 2020, net cash used in financing activities was $18.5 million, consisting primarily of $90.0 million
in borrowings on our revolving credit facility, partially offset by $74.5 million in payments on our revolving credit facility and
term loan, repurchases of our common stock of $18.3 million, $6.3 million in payments on our equipment financing obligations
and  dividend  payments  to  our  stockholders  of  $5.7  million.  Quarterly  cash  dividends  were  suspended  commencing  with  the
second quarter of 2020 and no dividends have been paid since the first quarter 2020.

During 2019, net cash provided by financing activities was $384.4 million, consisting primarily of $448.9 million of borrowings,
net  of  original  issue  discount,  under  the  term  loan  used  primarily  to  refinance  the  indebtedness  of  NRC  and  pay  transaction
expenses incurred in connection with the NRC Merger and $43.0 million of Revolving Credit Facility borrowings primarily used
for  the  payment  of  NRC  Merger-related  expenses  and  to  fund  the  purchase  of  US  Ecology  Sarnia,  partially  offset  by  $80.0
million  of  repayments  of  outstanding  Revolving  Credit  Facility  borrowings,  $15.9  million  of  dividend  payments  to  our
stockholders and $9.4 million of deferred financing costs paid in connection with the amendment of the Credit Agreement and
the issuance of the term loan.

During 2018, net cash provided by financing activities was $72.9 million, consisting primarily of $87.0 million in proceeds under
the Credit Agreement to fund the acquisition of Winnie and $2.4 million in proceeds received from the exercise of stock options,
partially offset by $15.8 million of dividend payments to our stockholders.

Credit Agreement

On  April  18,  2017,  US  Ecology  Holdings,  Inc.  (f/k/a  US  Ecology,  Inc.)  (“Predecessor  US  Ecology”),  now  a  wholly-owned
subsidiary of the Company, entered into a new senior secured credit agreement (as amended, restated, supplemented or otherwise
modified  through  the  date  hereof,  the  “Credit  Agreement”)  with  Wells  Fargo  Bank,  National  Association  (“Wells  Fargo”),  as
administrative agent for the lenders, swingline lender and issuing lender, and Bank of America, N.A., as an issuing lender, that
provides  for  the  $500.0  million,  five-year  Revolving  Credit  Facility,  including  a  $75.0  million  sublimit  for  the  issuance  of
standby letters of credit and a $40.0 million sublimit for the issuance of swingline loans used to fund short-term working capital
requirements.  The  Credit  Agreement  also  contains  an  accordion  feature  whereby  Predecessor  US  Ecology  may  request  up  to
$200.0 million of additional funds through an increase to the Revolving Credit Facility, through incremental term loans, or some
combination thereof. As described below, the Credit Agreement was amended in November 2019 in connection with the NRC
Merger and further amended on June 26, 2020 pursuant to the Third Amendment (as defined below). In addition, as a result of the
consummation of the NRC Merger, the borrower under the Credit Facility is Predecessor US Ecology, a wholly-owned subsidiary
of  the  Company.  In  connection  with  Predecessor  US  Ecology’s  entry  into  the  Credit  Agreement,  Predecessor  US  Ecology
terminated its existing credit agreement with Wells Fargo, dated June 17, 2014 (the “2014 Credit Agreement”). Immediately prior
to  the  termination  of  the  2014  Credit  Agreement,  there  were  $278.3  million  of  term  loans  and  no  revolving  loans  outstanding
under the 2014 Credit Agreement. No early termination penalties were incurred as a result of the termination of the 2014 Credit
Agreement.

During the year ended December 31, 2020, the effective interest rate on the Revolving Credit Facility, after giving effect to the
impact  of  our  interest  rate  swap  and  the  amortization  of  the  loan  discount  and  debt  issuance  costs,  was  3.98%.  Interest  only
payments are due either quarterly or on the last day of any interest period, as applicable. In March 2020, the Company entered
into an interest  rate  swap agreement  with Wells  Fargo, effectively  fixing  the  interest  rate on $480.0 million,  or approximately
61%, of the Revolving Credit Facility and term loan borrowings outstanding as of December 31, 2020.

Except as modified by the Third Amendment as described below, Predecessor US Ecology is required to pay a commitment fee
ranging from 0.175% to 0.35% on the average daily unused portion of the Revolving Credit Facility, with such

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commitment fee to be based upon Predecessor US Ecology’s total net leverage ratio (as defined in the Credit Agreement). The
maximum letter of credit capacity under the Revolving Credit Facility is $75.0 million and the Credit Agreement provides for a
letter of credit fee equal to the applicable margin for LIBOR loans under the Revolving Credit Facility. At December 31, 2020,
there were $347.0 million of revolving credit loans outstanding on the Revolving Credit Facility. These revolving credit loans are
due upon the earliest  to  occur  of (i)  November  1, 2024 (or, with respect  to any lender,  such later  date  as requested  by us and
accepted  by  such  lender),  (ii)  the  date  of  termination  of  the  entire  revolving  credit  commitment  (as  defined  in  the  Credit
Agreement) by us, and (iii) the date of termination of the revolving credit commitment and are presented as long-term debt in the
consolidated balance sheets.

Predecessor US Ecology has entered into a sweep arrangement whereby day-to-day cash requirements in excess of available cash
balances  are  advanced  to  the  Company  on  an  as-needed  basis  with  repayments  of  these  advances  automatically  made  from
subsequent  deposits  to  our  cash  operating  accounts  (the  “Sweep  Arrangement”).  Total  advances  outstanding  under  the  Sweep
Arrangement  are  subject  to  the  $40.0  million  swingline  loan  sublimit  under  the  Revolving  Credit  Facility.  Predecessor  US
Ecology’s revolving credit loans outstanding under the Revolving Credit Facility are not subject to repayment through the Sweep
Arrangement. As of December 31, 2020, there were no amounts outstanding subject to the Sweep Arrangement.

As  of  December  31,  2020,  the  availability  under  the  Revolving  Credit  Facility  was  $121.9  million,  subject  to  our  leverage
covenant limitation, with $9.8 million of the Revolving Credit Facility issued in the form of standby letters of credit utilized as
collateral for closure and post-closure financial assurance and other assurance obligations.

Amendments to the Credit Agreement

On August 6, 2019, Predecessor US Ecology entered into the first amendment (the “First Amendment”) to the Credit Agreement,
by and among Predecessor US Ecology, the subsidiaries of Predecessor US Ecology party thereto, the lenders referred to therein
and  Wells  Fargo,  as  issuing  lender,  swingline  lender  and  administrative  agent.  Effective  November  1,  2019,  the  First
Amendment, among other things, extended the expiration of the Revolving Credit Facility to November 1, 2024, permitted the
issuance of a $400.0 million incremental term loan to be used to refinance the indebtedness of NRC and pay related transaction
expenses in connection with the NRC Merger, modified the accordion feature allowing Predecessor US Ecology to request up to
the greater of (x) $250.0 million and (y) 100% of consolidated EBITDA plus certain additional amounts, increased the sublimit
for the issuance of swingline loans to $40.0 million and increased the maximum consolidated total net leverage ratio to 4.00 to
1.00.

On November 1, 2019, Predecessor US Ecology entered into the lender joinder agreement and second amendment (the “Second
Amendment”) to the Credit Agreement. Effective November 1, 2019, the Second Amendment, among other things, amended the
Credit  Agreement  to  increase  the  capacity  for  incremental  term  loans  by  $50.0  million  and  provided  for  Wells  Fargo  lending
$450.0 million in incremental term loans to Predecessor US Ecology to pay off the existing debt of NRC in connection with the
NRC  Merger,  to  pay  certain  fees,  costs  and  expenses  incurred  in  connection  with  the  NRC  Merger  and  to  repay  outstanding
borrowings  under  the  Revolving  Credit  Facility.  The  seven-year  incremental  term  loan  matures  November  1,  2026,  requires
principal repayment of 1% annually, and bears interest at LIBOR plus 2.25% or a base rate plus 1.25% (with a step-up to LIBOR
plus 2.50% or a base rate plus 1.50% in the event that US Ecology credit ratings are not BB (with a stable or better outlook) or
better from S&P and Ba2 (with a stable or better outlook) or better from Moody’s). During the year ended December 31, 2020,
the effective interest rate on the term loan, including the impact of the amortization of debt issuance costs, was 3.45%.

On June 26, 2020, Predecessor US Ecology entered into the third amendment (the “Third Amendment”) to the Credit Agreement.
Among other things, the Third Amendment amended the Credit Agreement to provide a covenant relief period through the earlier
of March 31, 2022 and the date Predecessor US Ecology elects to end such covenant relief period pursuant to the terms therein.
During  the  covenant  relief  period,  the  Third  Amendment  increased  Predecessor  US  Ecology’s  consolidated  total  net  leverage
ratio requirement as of the end of each fiscal quarter to certain ratios above the 4.00 to 1.00 ratio in effect immediately before
giving  effect  to  the  Third  Amendment,  subject  to  compliance  with  certain  restrictions  on  restricted  payments  and  permitted
acquisitions  during  such  covenant  relief  period.  Furthermore,  during  the  covenant  relief  period,  under  the  Revolving  Credit
Facility,  revolving  credit  loans  are  available  based  on  a  base  rate  (as  defined  in  the  Credit  Agreement)  or  LIBOR,  at  the
Company’s option, plus an applicable margin, which is determined

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according to a pricing grid under which the interest rate decreases or increases based on our ratio of funded debt to consolidated
earnings before interest, taxes, depreciation and amortization (as defined in the Credit Agreement)

See Note 16 to the Consolidated Financial Statements in “Part II, Item 8. Financial Statements and Supplementary Data” of this
Annual Report on Form 10-K for additional information on the Company’s debt.

Contractual Obligations and Guarantees

Contractual Obligations

US Ecology’s contractual obligations at December 31, 2020 become due as follows:

$s in thousands
Closure and post-closure
obligations (1)
Credit agreement obligations (2)
Interest expense (3)
Total contractual obligations (4)

Total

2021

     2022-2023      2024-2025      Thereafter

Payments Due by Period

$

 394,543
 792,500
 122,958
$  1,310,001

$  6,679
 4,500
   27,847
$  39,026

$  12,391
 9,000
   48,934
$  70,325

$  15,353
 356,000
 35,403
$  406,756

$  360,120
 423,000
 10,774
$  793,894

(1) For the purposes of the table above, closure and post-closure obligations are shown on an undiscounted basis and inflated
using an estimated annual inflation rate of 2.6%. Cash payments for closure and post-closure obligation extend to the year
2130.

(2) At  December  31,  2020,  there  were  $347.0  million  of  revolving  credit  loans  outstanding  on  the  Revolving  Credit  Facility.
These revolving credit loans are due upon the earliest to occur of (a) November 1, 2024 (or, with respect to any lender, such
later  date  as  requested  by  us  and  accepted  by  such  lender),  (b)  the  date  of  termination  of  the  entire  revolving  credit
commitment (as defined in the Credit Agreement, as amended) by us, and (c) the date of termination of the revolving credit
commitment. At December 31, 2020 there were $445.5 million of term loan borrowings outstanding. The term loan matures
on November 1, 2026 and requires principal repayment of 1% annually.

(3)

Interest  expense  has  been  calculated  using  the  interest  rate  of  3.00%  in  effect  at  December  31,  2020  on  the  unhedged
variable  rate  portion  of  the  Revolving  Credit  Facility  borrowings  and  3.69%  on  the  fixed  rate  hedged  portion  of  the
Revolving  Credit  Facility  borrowings.  Interest  expense  has  been  calculated  using  the  interest  rate  of  2.65%  in  effect  at
December 31, 2020 on the unhedged variable rate portion of the term loan borrowings and 3.33% on the fixed rate hedged
portion  of  the  term  loan  borrowings.  The  interest  expense  calculation  reflects  assumed  payments  on the  Revolving  Credit
Facility and the term loan borrowings consistent with the disclosures in footnote (2) above.

(4) As we are not able to reasonably estimate when we would make any cash payments to settle unrecognized tax benefits of

$239,000, such amounts have not been included in the table above.

Guarantees

We enter into a wide range of indemnification arrangements, guarantees and assurances in the ordinary course of business and
have evaluated agreements that contain guarantees and indemnification clauses. These include tort indemnities, tax indemnities,
indemnities against third-party claims arising out of arrangements to provide services to us and indemnities related to the sale of
our securities. We also indemnify individuals made party to any suit or proceeding if that individual was acting as an officer or
director of US Ecology or was serving at the request of US Ecology or any of its subsidiaries during their tenure as a director or
officer. We also provide guarantees and indemnifications for the benefit of our wholly-owned subsidiaries to satisfy performance
obligations,  including  closure  and  post-closure  financial  assurances.  It  is  difficult  to  quantify  the  maximum  potential  liability
under these indemnification arrangements; however, we are not currently aware of any material liabilities to the Company or any
of its subsidiaries arising from these arrangements.

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Environmental Matters

We maintain funded trust agreements, surety bonds and insurance policies for future closure and post-closure obligations at both
current and formerly operated disposal facilities. These funded trust agreements, surety bonds and insurance policies are based on
management  estimates  of  future  closure  and  post-closure  monitoring  using  engineering  evaluations  and  interpretations  of
regulatory requirements which are periodically updated. Accounting for closure and post-closure costs includes final disposal cell
capping  and  revegetation,  soil  and  groundwater  monitoring  and  routine  maintenance  and  surveillance  required  after  a  site  is
closed.

We  estimate  that  our  undiscounted  future  closure  and  post-closure  costs  for  all  facilities  was  approximately  $394.5  million  at
December 31, 2020, with a median payment year of 2075. Our future closure and post-closure estimates are our best estimate of
current  costs  and  are  updated  periodically  to  reflect  current  technology,  cost  of  materials  and  services,  applicable  laws,
regulations, permit conditions or orders and other factors. These current costs are adjusted for anticipated annual inflation, which
we assumed to be 2.6% as of December 31, 2020. These future closure and post-closure estimates are discounted to their present
value for financial reporting purposes using our credit-adjusted risk-free interest rate, which approximates our incremental long-
term borrowing rate in effect at the time the obligation is established or when there are upward revisions to our estimated closure
and  post-closure  costs.  At  December  31,  2020,  our  weighted-average  credit-adjusted  risk-free  interest  rate  was  5.4%.  For
financial  reporting  purposes,  our  recorded  closure  and  post-closure  obligations  were  $95.9  million  and  $86.4  million  as  of
December 31, 2020 and 2019, respectively.

Through December 31, 2020, we have met our financial assurance requirements through insurance, surety bonds, standby letters
of credit and self-funded restricted trusts.

U.S. Operating and Non-Operating Facilities

We  cover  our  closure  and  post-closure  obligations  for  our  U.S.  operating  facilities  through  the  use  of  third-party  insurance
policies,  surety  bonds  and  standby  letters  of  credit.  As  of  December  31,  2020,  we  had  provided  collateral  of  $5.6  million  in
funded trust agreements, $23.2 million in surety bonds, issued $3.6 million in letters of credit for financial assurance and have
insurance policies of approximately $117.8 million for closure and post-closure obligations at covered U.S. operating and non-
operating facilities. Cash held in funded trust agreements for our closure and post-closure obligations is identified as Restricted
cash and investments on our consolidated balance sheets.

All  closure  and  post-closure  funding  obligations  for  our  Beatty,  Nevada  and  Richland,  Washington  facilities  revert  to  the
respective  state.  Volume  based  fees  are  collected  from  our  customers  and  remitted  to  state-controlled  trust  funds  to  cover  the
estimated cost of closure and post-closure obligations.

Stablex

We use commercial surety bonds to cover our closure obligations for our Stablex facility located in Blainville, Québec, Canada.
Our lease agreement with the Province of Québec requires that the surety bond be maintained for 25 years after the lease expires
in  2023.  At  December  31,  2020  we  had  $816,000  in  commercial  surety  bonds  dedicated  for  closure  obligations.  These  bonds
were renewed in November and December 2020 and expire in November and December 2021. Post-closure funding obligations
for the Stablex landfill revert back to the Province of Québec through a dedicated trust account that is funded based on a per-
metric-ton disposed fee by Stablex.

We expect to renew insurance policies and commercial surety bonds in the future. If we are unable to obtain adequate closure,
post-closure  or  environmental  liability  insurance  and/or  commercial  surety  bonds  in  future  years,  any  partial  or  completely
uninsured  claim  against  us,  if  successful  and  of  sufficient  magnitude,  could  have  a  material  adverse  effect  on  our  financial
condition, results of operations or cash flows. Additionally, continued access to casualty and pollution legal liability insurance
with  sufficient  limits,  at  acceptable  terms,  is  important  to  obtaining  new  business.  Failure  to  maintain  adequate  financial
assurance could also result in regulatory action including early closure of facilities. While we believe we will be able to maintain
the requisite financial assurance policies at a reasonable cost, premium and collateral requirements may materially increase.

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Operation of disposal facilities creates operational, closure and post-closure obligations that could result in unplanned monitoring
and  corrective  action  costs.  We  cannot  predict  the  likelihood  or  effect  of  all  such  costs,  new  laws  or  regulations,  litigation  or
other future events affecting our facilities. We do not believe that continuing to satisfy our environmental obligations will have a
material adverse effect on our financial condition or results of operations.

Seasonal Effects

Seasonal  fluctuations  due  to  weather  and  budgetary  cycles  can  influence  the  timing  of  customer  spending  for  our  services.
Typically,  in  the  first  quarter  of  each  calendar  year  there  is  less  demand  for  our  services  due  to  weather-related  reduced
construction and business activities while we experience improvement in our second and third quarters of each calendar year as
weather conditions and other business activity improves.

Critical Accounting Policies

Our  discussion  and  analysis  of  our  financial  condition  and  results  of  operations  are  based  upon  our  consolidated  financial
statements,  which  have  been  prepared  in  accordance  with  GAAP.  The  preparation  of  these  financial  statements  require  us  to
make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses and related disclosure
of contingent assets and liabilities. On an ongoing basis, we evaluate our estimates included in our critical accounting policies
discussed  below  and  those  accounting  policies  and  use  of  estimates  discussed  in  Notes  2  and  3  to  the  Consolidated  Financial
Statements located in “Part II, Item 8. Financial Statements and Supplementary Data” of this Annual Report on Form 10-K. We
base our estimates on historical experience and on various assumptions and other factors we believe to be reasonable, the results
of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from
other sources. We make adjustments to judgments and estimates based on current facts and circumstances on an ongoing basis.
Historically,  actual  results  have  not  deviated  significantly  from  those  determined  using  the  estimates  described  below  or  in
Notes  2  and  3  to  the  Consolidated  Financial  Statements  located  in  “Part  II,  Item  8.  Financial  Statements  and  Supplementary
Data” to this Annual Report on Form 10-K. However, actual amounts could differ materially from those estimated at the time the
consolidated financial statements are prepared.

We believe the following critical accounting policies are important to understand our financial condition and results of operations
and require management’s most difficult, subjective or complex judgments, often as a result of the need to estimate the effect of
matters that are inherently uncertain.

Revenue Recognition

Revenues  are  recognized  when control  of  the  promised  services  is  transferred  to  our  customers,  in  an  amount  that  reflects  the
consideration we expect to be entitled to in exchange for those services.

We recognize revenue from three primary sources: (1) waste treatment, recycling and disposal services, (2) field and industrial
waste management services and (3) waste transportation services.

Our waste treatment and disposal customers are legally obligated to properly treat and dispose of their waste in accordance with
local, state and federal laws and regulations. As our customers do not possess the resources to properly treat and dispose of their
waste independently, they contract with the Company to perform the services. Waste treatment, recycling, and disposal revenue
results  primarily  from  fixed  fees  charged  to  customers  for  treatment  and/or  disposal  or  recycling  of  specified  wastes.  Waste
treatment,  recycling,  and  disposal  revenue  is  generally  charged  on  a  per-ton  or  per-yard  basis  at  contracted  prices  and  is
recognized over time as the services are performed. Our treatment and disposal services are generally performed as the waste is
received and considered complete upon final disposal.

Field  and  industrial  waste  management  services  revenue  results  primarily  from  specialty  onsite  services  such  as  high-pressure
cleaning,  tank  cleaning,  decontamination,  remediation,  transportation,  spill  cleanup  and  emergency  response  at  refineries,
chemical  plants,  steel  and  automotive  plants,  and  other  government,  commercial  and  industrial  facilities.  We  also  provide
hazardous waste packaging and collection services and total waste management solutions at customer sites and through our 10-
day transfer facilities. These services are provided based on purchase orders or agreements with the customer and include prices
based upon daily, hourly or job rates for equipment, materials and personnel. Generally, the

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pricing in these types of contracts is fixed, but the quantity of services to be provided during the contract term is variable and
revenues are recognized over the term of the agreements or as services are performed. As we have a right to consideration from
our customers in an amount that corresponds directly with the value to the customer of the Company’s performance completed to
date,  we  have  applied  the  practical  expedient  to  recognize  revenue  in  the  amount  to  which  we  have  the  right  to  invoice.
Additionally, we have customers that pay annual retainer fees, primarily for our standby services, under long-term or evergreen
contracts. Such retainer fees are recognized over time as the services are performed and it is probable that a significant reversal in
the amount of cumulative revenue recognized on the contracts will not occur.

Transportation and logistics revenue results from delivering customer waste to a disposal facility for treatment and/or disposal or
recycling. Transportation services are generally not provided on a stand-alone basis and instead are bundled with other Company
services. However, in some instances we provide transportation and logistics services for shipment of waste from cleanup sites to
disposal  facilities  operated  by  other  companies.  For  such  arrangements,  we  allocate  revenue  to  each  performance  obligation
based on its relative  standalone  selling  price.  We  generally  determine  standalone  selling  prices  based on the prices  charged  to
customer or using expected cost plus margin. Transportation revenue is recognized over time as the waste is transported.

Taxes  and  fees  collected  from  customers  concurrent  with  revenue-producing  transactions  to  be  remitted  to  governmental
authorities are excluded from revenue.

Our Richland, Washington disposal facility is regulated by the WUTC, which approves our rates for disposal of LLRW. Annual
revenue levels are established based on a rate agreement with the WUTC at amounts sufficient to cover our costs of operation,
including facility maintenance, equipment replacement and related costs, and provide us with a reasonable profit. Per-unit rates
charged  to  LLRW  customers  during  the  year  are  based  on  our  evaluation  of  disposal  volume  and  radioactivity  projections
submitted  to  us  by  waste  generators.  Our  proposed  rates  are  then  reviewed  and  approved  by  the  WUTC.  If  annual  revenue
exceeds the approved levels set by the WUTC, we are required to refund excess collections to facility users on a pro-rata basis.
Refundable  excess  collections,  if  any,  are  recorded  in  Accrued  liabilities  in  the  consolidated  balance  sheets.  The  current  rate
agreement with the WUTC was extended in 2019 and is effective until December 31, 2025.

Disposal Facility Accounting

We amortize landfill and disposal assets and certain related permits over their estimated useful lives. The units-of-consumption
method  is  used  to  amortize  landfill  cell  construction  and  development  costs  and  asset  retirement  costs.  Under  the  units-of-
consumption method, we include costs incurred to date as well as future estimated construction costs in the amortization base of
the landfill assets. Additionally, where appropriate, as discussed below, we also include probable expansion airspace that has yet
to be permitted in the calculation of the total remaining useful life of the landfill asset. If we determine that expansion capacity
should no longer be considered in calculating the total remaining useful life of a landfill asset, we may be required to recognize
an  asset  impairment  or  incur  significantly  higher  amortization  expense  over  the  remaining  estimated  useful  life  of  the  landfill
asset. If at any time we make the decision to abandon the expansion effort, the capitalized costs related to the expansion effort
would be expensed in the period of abandonment.

Our  landfill  assets  and  liabilities  fall  into  the  following  two  categories,  each  of  which  require  accounting  judgments  and
estimates:

●

Landfill assets comprised of capitalized landfill development costs.

● Disposal  facility  retirement  obligations  relating  to  our  capping,  closure  and  post-closure  liabilities  that  result  in

corresponding retirement assets.

Landfill Assets

Landfill  assets  include  the  costs  of  landfill  site  acquisition,  permits  and  cell  design  and  construction  incurred  to  date.  Landfill
cells  represent  individual  disposal  areas  within  the  overall  treatment  and  disposal  site  and  may  be  subject  to  specific  permit
requirements in addition to the general permit requirements associated with the overall site.

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To develop, construct and operate a landfill cell, we must obtain permits from various regulatory agencies at the local, state and
federal  levels.  The  permitting  process  requires  an  initial  site  study  to  determine  whether  the  location  is  feasible  for  landfill
operations.  The  initial  studies  are  reviewed  by  our  environmental  management  group  and  then  submitted  to  the  regulatory
agencies for approval. During the development stage we capitalize certain costs that we incur after site selection but before the
receipt of all required permits if we believe that it is probable that the landfill cell will be permitted.

Upon receipt of regulatory approval, technical landfill cell designs are prepared. The technical designs, which include the detailed
specifications to develop and construct all components of the landfill cell including the types and quantities of materials that will
be  required,  are  reviewed  by  our  environmental  management  group.  The  technical  designs  are  submitted  to  the  regulatory
agencies for approval. Upon approval of the technical designs, the regulatory agencies issue permits to develop and operate the
landfill cell.

The  types  of  costs  that  are  detailed  in  the  technical  design  specifications  generally  include  excavation,  natural  and  synthetic
liners,  construction  of  leachate  collection  systems,  installation  of  groundwater  monitoring  wells,  construction  of  leachate
management facilities and other costs associated with the development of the site. We review the adequacy of our cost estimates
at  least  annually.  These  development  costs,  together  with  any  costs  incurred  to  acquire,  design  and  permit  the  landfill  cell,
including personnel costs of employees directly associated with the landfill cell design, are recorded to the landfill asset on the
balance sheet as incurred.

To match the expense related to the landfill asset with the revenue generated by the landfill operations, we amortize the landfill
asset on a units-of-consumption basis over its operating life, typically on a cubic yard or cubic meter of disposal space consumed.
The landfill asset is fully amortized at the end of a landfill cell’s operating life. The per-unit amortization rate is calculated by
dividing the sum of the landfill asset net book value plus estimated future development costs (as described above) for the landfill
cell, by the landfill cell’s estimated remaining disposal capacity. Amortization rates are influenced by the original cost basis of
the  landfill  cell,  including  acquisition  costs,  which  in  turn  is  determined  by  geographic  location  and  market  values.  We  have
secured significant landfill assets through business acquisitions and valued them at the time of acquisition based on fair value.

Included  in  the  technical  designs  are  factors  that  determine  the  ultimate  disposal  capacity  of  the  landfill  cell.  These  factors
include  the  area  over  which  the  landfill  cell  will  be  developed,  such  as  the  depth  of  excavation,  the  height  of  the  landfill  cell
elevation and the angle of the side-slope construction. Landfill cell capacity used in the determination of amortization rates of our
landfill  assets  includes  both  permitted  and  unpermitted  disposal  capacity.  Unpermitted  disposal  capacity  is  included  when
management  believes  achieving  final  regulatory  approval  is  probable  based  on  our  analysis  of  site  conditions  and  interactions
with applicable regulatory agencies.

We  review  the  estimates  of  future  development  costs  and  remaining  disposal  capacity  for  each  landfill  cell  at  least  annually.
These  costs  and  disposal  capacity  estimates  are  developed  using  input  from  independent  engineers  and  internal  technical  and
accounting managers and are reviewed and approved by our environmental management group. Any changes in future estimated
costs or estimated disposal capacity are reflected prospectively in the landfill cell amortization rates.

We assess our long-lived landfill assets for impairment when an event occurs or circumstances change that indicate the carrying
amount may not be recoverable. Examples of events or circumstances that may indicate impairment of any of our landfill assets
include, but are not limited to, the following:

● Changes in legislative or regulatory requirements impacting the landfill site permitting process making it more difficult and

costly to obtain and/or maintain a landfill permit;

● Actions by neighboring parties, private citizen groups or others to oppose our efforts to obtain, maintain or expand permits,
which could result in denial, revocation or suspension of a permit and adversely impact the economic viability of the landfill.
As a result of opposition to our obtaining a permit, improved technical information as a project progresses, or changes in the
anticipated economics associated with a project, we may decide to reduce the scope of, or abandon, a project, which could
result in an asset impairment; and

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● Unexpected significant increases in estimated costs, significant reductions in prices we are able to charge our customers or

reductions in disposal capacity that affect the ongoing economic viability of the landfill.

Disposal Facility Retirement Obligations

Disposal  facility  retirement  obligations  include  the  cost  to  close,  maintain  and  monitor  landfill  cells  and  support  facilities.  As
individual landfill cells reach capacity, we must cap and close the cells in accordance with the landfill cell permits. These capping
and closure requirements are detailed in the technical design of each landfill cell and included as part of our approved regulatory
permit. After the entire landfill cell has reached capacity and is certified closed, we must continue to maintain and monitor the
landfill  cell  for  a  post-closure  period,  which  generally  extends  for  30  years.  Costs  associated  with  closure  and  post-closure
requirements generally include maintenance of the landfill cell and groundwater systems, and other activities that occur after the
landfill cell has ceased accepting waste. Costs associated with post-closure monitoring generally include groundwater sampling,
analysis and statistical reports, transportation and disposal of landfill leachate and erosion control costs related to the final cap.

We have a legally enforceable obligation to operate our landfill cells in accordance with the specific requirements, regulations
and criteria set forth in our permits. This includes executing the approved closure/post-closure plan and closing/capping the entire
landfill cell in accordance with the established requirements, design and criteria contained in the permit. As a result, we record
the fair value of our disposal facility retirement obligations as a liability in the period in which the regulatory obligation to retire a
specific asset is triggered. For our individual landfill cells, the required closure and post-closure obligations under the terms of
our  permits  and  our  intended  operation  of  the  landfill  cell  are  triggered  and  recorded  when  the  cell  is  placed  into  service  and
waste  is  initially  disposed  in  the  landfill  cell.  The  fair  value  is  based  on  the  total  estimated  costs  to  close  the  landfill  cell  and
perform post-closure activities once the landfill cell has reached capacity and is no longer accepting waste, discounted using a
credit-adjusted  risk-free  rate.  Retirement  obligations  are  increased  each  year  to  reflect  the  passage  of  time  by  accreting  the
balance  at  the  weighted  average  credit-adjusted  risk-free  rate  that  is  used  to  calculate  the  recorded  liability,  with  accretion
charged to direct operating costs. Actual cash expenditures to perform closure and post-closure activities reduce the retirement
obligation liabilities as incurred. After initial measurement, asset retirement obligations are adjusted at the end of each period to
reflect  changes,  if  any,  in  the  estimated  future  cash  flows  underlying  the  obligation.  Disposal  facility  retirement  assets  are
capitalized as the related disposal facility retirement obligations are incurred. Disposal facility retirement assets are amortized on
a units-of-consumption basis as the disposal capacity is consumed.

Our disposal facility retirement obligations represent the present value of current cost estimates to close, maintain and monitor
landfills and support facilities as described above. Cost estimates are developed using input from independent engineers, internal
technical  and  accounting  managers,  as  well  as  our  environmental  management  group’s  interpretation  of  current  legal  and
regulatory  requirements,  and  are  intended  to  approximate  fair  value.  We  estimate  the  timing  of  future  payments  based  on
expected  annual  disposal  airspace  consumption  and  then  inflate  the  current  cost  estimate  by  an  inflation  rate,  estimated  at
December 31, 2020 to be 2.6%. Inflated current costs are then discounted using our credit-adjusted risk-free interest rate, which
approximates our incremental borrowing rate in effect at the time the obligation is established or when there are upward revisions
to our estimated closure and post-closure costs. Our weighted-average credit-adjusted risk-free interest rate at December 31, 2020
was approximately 5.4%. Final closure and post-closure obligations are currently estimated as being paid through the year 2130.
During 2020 we updated several assumptions, including estimated costs and timing of closing our disposal cells. These updates
resulted in a net increase to our post-closure obligations of $5.4 million in 2020.

We update our estimates of future capping, closure and post-closure costs and of future disposal capacity for each landfill cell on
an  annual  basis.  Changes  in  inflation  rates  or  the  estimated  costs,  timing  or  extent  of  the  required  future  activities  to  close,
maintain and monitor landfills and facilities result in both: (i) a current adjustment to the recorded liability and related asset and
(ii)  a  change  in  accretion  and  amortization  rates  which  are  applied  prospectively  over  the  remaining  life  of  the  asset.  A
hypothetical 1% increase in the inflation rate would increase our closure/post-closure obligation by $19.2 million. A hypothetical
10% increase in our cost estimates would increase our closure/post-closure obligation by $8.8 million.

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Goodwill and Intangible Assets

Goodwill

As of December 31, 2020, the Company’s goodwill balance was $413.0 million. We assess goodwill for impairment during the
fourth quarter as of October 1 of each year, and also if an event occurs or circumstances change that would more likely than not
reduce the fair value of a reporting unit below its carrying amount. The assessment consists of comparing the fair value of the
reporting unit to the carrying value of the net assets assigned to the reporting unit, including goodwill. Some of the factors that
could indicate impairment include a significant adverse change in legal factors or in the business climate, an adverse action or
assessment by a regulator, or failure to generate sufficient cash flows at the reporting unit. For example, field services represents
an emerging business for the Company and has been the focus of a shift in strategy since the acquisition of NRC and EQ. Failure
to execute on planned growth initiatives within this business could lead to the impairment of goodwill and intangible assets in
future periods.

We  determine  our  reporting  units  by  identifying  the  components  of  each  operating  segment,  and  then  aggregate  components
having  similar  economic  characteristics  based  on quantitative  and/or  qualitative  factors.  At December  31, 2020, we  had  seven
reporting units, five of which had allocated goodwill.

Fair values are generally determined by an income approach, discounting projected future cash flows based on our expectations
of the current and future operating environment, using a market approach, applying a multiple of earnings based on guideline for
publicly  traded  companies,  or  a  combination  thereof.  Estimating  future  cash  flows  requires  significant  judgment  about  factors
such  as  general  economic  conditions  and  projected  growth  rates,  and  our  estimates  often  vary  from  the  cash  flows  eventually
realized. The rates used to discount projected future cash flows reflect a weighted average cost of capital based on our industry,
capital structure and risk premiums including those reflected in the current market capitalization. In the event the fair value of a
reporting unit exceeds its carrying amount, goodwill of the reporting unit is considered not impaired. If the carrying amount of a
reporting unit exceeds its fair value, goodwill of the reporting unit is considered impaired, and an impairment charge would be
recognized during the period in which the determination has been made for the amount by which the carrying amount exceeds the
reporting unit’s fair value; however, the loss recognized will not exceed the total amount of goodwill allocated to that reporting
unit.

Assessing  impairment  inherently  involves  management  judgments  as  to  the  assumptions  used  to  calculate  fair  value  of  the
reporting  units  and  the  impact  of  market  conditions  on  those  assumptions.  The  key  inputs  that  management  uses  in  its
assumptions to estimate the fair value of our reporting units under the income-based approach are as follows:

●

Projected  cash  flows  of  the  reporting  unit,  with  consideration  given  to  projected  revenues,  operating  margins  and  the
levels of capital investment required to generate the corresponding revenues; and

● Weighted average cost of capital (“WACC”), the risk-adjusted rate used to discount the projected cash flows.

To develop the projected cash flows of our reporting units, management considers factors that may impact the revenue streams
within  each  reporting  unit.    These  factors  include,  but  are  not  limited  to,  economic  conditions  on  both  a  global  scale  and
specifically in the regions in which the reporting units operate, customer relationships, strategic plans and opportunities, required
returns  on  invested  capital  and  competition  from  other  service  providers.  With  regard  to  operating  margins,  management
considers  its  historical  reporting  unit  operating  margins  on the  revenue  streams  within  each  reporting  unit,  adjusting  historical
margins for the projected impact of current market trends on both fixed and variable costs.

Expected  future  after-tax  operating  cash  flows  of  each  reporting  unit  are  discounted  to  a  present  value  using  a  risk-adjusted
discount  rate.  Estimates  of  future  cash  flows  require  management  to  make  significant  assumptions  regarding  future  operating
performance including the projected mix of revenue streams within each reporting unit, projected operating margins, the amount
and timing of capital investments and the overall probability of achieving the projected cash flows, as well as future economic
conditions, which may result in actual future cash flows that are different than management’s estimates. The discount rate, which
is intended to reflect the risks inherent in future cash flow projections, used in estimating the present value of future cash flows, is
based on estimates of the WACC of market participants relative to the

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reporting  units.  Financial  and  credit  market  volatility  can  directly  impact  certain  inputs  and  assumptions  used  to  develop  the
WACC.

In  connection  with  our  financial  review  and  forecasting  procedures  performed  during  the  first  quarter  of  2020,  management
determined that the projected future cash flows of our EW reporting unit and our International reporting unit (described below)
indicated that the fair value of such reporting units may be below their respective carrying amounts. Accordingly, we performed
an interim assessment of each reporting unit’s fair value as of March 31, 2020 (the “Interim Assessment”). Based on the results of
the  Interim  Assessment,  we  recognized  goodwill  impairment  charges  of  $283.6  million  related  to  our  EW  reporting  unit  and
$16.7  million  related  to  our  International  reporting  unit  in  the  first  quarter  of  2020.  During  the  fourth  quarter  of  2020,  the
Company finalized the purchase price allocation related to the NRC Merger. The finalization of fair value estimates during the
fourth quarter of 2020, and resulting final determination of goodwill by reporting unit, resulted in an increase in the amount of
goodwill assigned to the EW reporting unit and a decrease in the amount of goodwill assigned to the International reporting unit.
 $80.3 million of additional goodwill assigned to the EW reporting unit was immediately impaired in the fourth quarter of 2020
based  on  the  fair  value  of  the  reporting  unit  determined  in  the  Interim  Assessment.  The  decrease  in  goodwill  assigned  to  the
International reporting unit resulted in the reversal in the fourth quarter of 2020 of $11.2 million of International reporting unit
goodwill impairment charges recorded in the first quarter of 2020.

Our EW reporting unit, the sole component of our Energy Waste segment, provides energy-related services including solid and
liquid waste treatment and disposal, equipment cleaning and maintenance, specialty equipment rental, spill containment and site
remediation  for  a  full  complement  of  oil  and  gas  waste  streams,  predominately  to  upstream  energy  customers  currently
concentrated in the Eagle Ford and Permian Basins in Texas. Our International reporting unit, a component of our Field Services
segment, provides industrial and emergency response services to the offshore oil and gas sector in the North Sea and land-based
industries across the EMEA region. Both our EW and International reporting units are dependent on energy-related exploration
and production investments and expenditures by our energy industry customers. Lower crude oil prices and the volatility of such
prices affect the level of investment as it impacts the ability of energy companies to access capital on economically advantageous
terms or at all. In addition, energy companies decrease investments when the projected profits are inadequate or uncertain due to
lower  crude  oil  prices  or  volatility  in  crude  oil  prices.  Such  reductions  in  capital  spending  negatively  impact  energy  waste
generation and therefore the demand for our services. Recent volatility and historically low oil prices have adversely impacted
customers of our EW reporting unit and our International reporting unit, negatively affecting demand for our services.

The principal factors contributing to the goodwill impairment charges for both the EW and International reporting units related to
historically-low  energy  commodity  prices  reducing  anticipated  energy-related  exploration  and  production  investments  and
expenditures by our energy industry customers, which negatively impacted each reporting unit’s prospective cash flows and each
reporting  unit's  estimated  fair  value.  A  longer-than-expected  recovery  in  crude  oil  pricing  and  energy-related  exploration  and
production investments became evident during the first quarter of 2020 as we assessed the projected impact of the COVID-19
pandemic  and  foreign  oil  production  increases  on  the  global  demand  for  oil  and  updated  the  long-term  projections  for  each
reporting  unit  which,  as  a  result,  decreased  each  reporting  unit’s  anticipated  future  cash  flows  as  compared  to  those  estimated
previously.

Consistent with our annual impairment testing methodology, we utilized a weighted average of (1) an income approach and (2) a
market approach to determine the fair value of each of the reporting units for the Interim Assessment. The income approach is
based on the estimated present value of future cash flows for each reporting unit. The market approach is based on assumptions
about how market data relates to each reporting unit.

The rapid and sustained decline in the energy markets served by our EW and International  reporting units, exacerbated by the
uncertainty surrounding the impact of the COVID-19 pandemic and foreign oil production increases, has inherently increased the
risk  associated  with  the  future  cash  flows  of  these  reporting  units.  Accordingly,  when  performing  the  Interim  Assessment,  we
increased the discount rates and decreased the projected capital investment for each reporting unit compared to the assumptions
used in the initial fair value assessment in connection with the NRC Merger on November 1, 2019. We believe these changes are
reflective of market participant inputs in consideration of the current economic uncertainty.  

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We  also  considered  the  estimated  fair  value  of  our  EW  and  International  reporting  units  under  a  market-based  approach  by
applying  industry-comparable  multiples  of  revenues  and  operating  earnings  to  reporting  unit  revenues  and  operating  earnings.
The  lack  of  a  broad  base  of  publicly  available  market  data  specific  to  the  industry  in  which  we  operate,  combined  with  the
general  market  volatility  attributable  to  the  COVID-19  pandemic,  results  in  a  wide  range  of  currently  observable  market
multiples.  Accordingly,  we  applied  less  weight  to  the  estimated  fair  value  of  our  reporting  units  calculated  under  the  market-
based approach (10%) compared to the income approach (90%) described above.

We  believe  that  the  discount  rates,  projected  cash  flows  and  other  inputs  and  assumptions  used  in  the  Interim  Assessment  are
consistent with those that a market participant would use based on the events described above and are reflective of the current
market assessment of the fair value of our EW and International reporting units. In addition, we believe that our estimates and
assumptions  about  future  revenues  and  margin  projections  in  the  Interim  Assessment  were  reasonable  and  consistent  with  the
current economic uncertainty, both in general and specific to the energy markets served by our EW and International reporting
units.

The result of the annual assessment of goodwill undertaken in the fourth quarter of 2020 indicated that the fair value of each of
our reporting units was in excess of its respective carrying value, with the exception of our Field Services reporting unit.

Our  Field  Services  reporting  unit,  a  component  of  our  Field  Services  segment,  offers  specialty  field  services  and  total  waste
management solutions to commercial and industrial facilities and to government entities through our 10-day transfer facilities and
at customer sites. Consistent with prior assessments, we utilized a weighted average of (1) an income approach and (2) a market
approach to determine the fair value of each of the Field Services reporting unit. The income approach is based on the estimated
present value of future cash flows for the reporting unit. The market approach is based on assumptions about how market data
relates  to  the  reporting  unit.  The  estimated  fair  value  of  the  Field  Services  reporting  unit  was  then  compared  to  the  reporting
unit’s carrying amount as of October 1, 2020. Based on the results of that comparison, the carrying amount of the Field Services
reporting  unit  exceeded  the  estimated  fair  value  of  the  reporting  unit  by  $14.4  million  and,  as  a  result,  we  recognized  a
corresponding goodwill impairment charge in the fourth quarter of 2020. The factors contributing to the $14.4 million goodwill
impairment  charge  principally  related  to  an  increase  in  the  risk-adjusted  rate  used  to  discount  the  projected  cash  flows  of  the
reporting  unit  as  a  result  of  the  decline  in  our  share  price  since  the  last  annual  assessment  as  well  as  a  slower  than  expected
recovery  to  cash  flow  levels  forecasted  prior  to  the  COVID-19  pandemic,  which  negatively  impacted  the  reporting  unit’s
prospective financial information in its discounted cash flow model and the reporting unit’s estimated fair value as compared to
previous estimates.

We  believe  that  the  discount  rates,  projected  cash  flows  and  other  inputs  and  assumptions  used  in  the  annual  assessment  of
goodwill are consistent with those that a market participant would use based on the facts and circumstances described above and
are reflective  of the current  market  assessment of the fair value of our Field Services and EW reporting units. In addition, we
believe  that  our  estimates  and  assumptions  about  future  revenues  and  margin  projections  in  the  annual  assessment  were
reasonable  and  consistent  with  the  current  economic  outlook,  both  in  general  and  specific  to  the  markets  served  by  our  Field
Services and EW reporting units.

The result of the annual assessment of goodwill undertaken in the fourth quarter of 2019 indicated that the fair value of each of
our reporting units was in excess of its respective carrying value.
In connection with our annual budgeting process commencing in the third quarter of 2018 and review of the projected future cash
flows of our reporting units used in our annual assessment of goodwill, it was determined that the projected future cash flows of
our Mobile Recycling reporting unit, which is part of our Waste Solutions segment, indicated that the fair value of the reporting
unit may be below its carrying amount. Accordingly, we performed an interim assessment of the reporting unit’s goodwill as of
September 30, 2018. Based on the results of that assessment, goodwill was deemed impaired and we recognized an impairment
charge  of  $1.4  million  in  the  third  quarter  of  2018,  representing  the  reporting  unit’s  entire  goodwill  balance.  The  factors
contributing to the $1.4 million goodwill impairment charge recorded in 2018 principally related to declining business and cash
flows, which negatively impacted the reporting unit’s prospective financial information in its discounted cash flow model and the
reporting unit’s estimated fair value as compared to previous estimates.

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The result of the annual assessment of goodwill undertaken in the fourth quarter of 2018 indicated that the fair value of each of
our reporting units was in excess of its respective carrying value.

Non-amortizing Intangible Assets

We review non-amortizing intangible assets for impairment during the fourth quarter as of October 1 of each year. Fair value is
generally  determined  by  considering  an  internally  developed  discounted  projected  cash  flow  analysis.  Estimating  future  cash
flows  requires  significant  judgment  about  factors  such  as  general  economic  conditions  and  projected  growth  rates,  and  our
estimates often vary from the cash flows eventually realized. If the fair value of an asset is determined to be less than the carrying
amount  of  the  intangible  asset,  an  impairment  in  the  amount  of  the  difference  is  recorded  in  the  period  in  which  the  annual
assessment occurs.

The results of the annual assessment of non-amortizing intangible assets undertaken in the fourth quarter of 2020 indicated no
impairment  charges  were  required,  with  the  exception  of  certain  non-amortizing  permit  intangibles  within  our  Field  Services
segment.

Our Field Services segment provides government-mandated, commercial standby oil spill compliance solutions to companies that
store,  transport,  produce  or  handle  petroleum  and  certain  nonpetroleum  oils  on  or  near  U.S.  waters.  A  company’s  ability  to
provide these standby services is subject to significant regulatory certification requirements and other high barriers to entry. As
such,  the  Company  assigned  $57.1  million  of  fair  value  to  non-amortizing  standby  services  permit  intangible  assets  upon
finalization of the purchase accounting allocation related to the NRC Merger. In performing the annual indefinite-lived intangible
assets impairment tests, the estimated fair value of the standby services permits was determined under an income approach using
discounted projected future cash flows associated with the permits and then compared to the $57.1 million carrying amount of the
permits as of October 1, 2020. Based on the results of that evaluation, the carrying amount of the permits exceeded the estimated
fair value of the permits and, as a result, we recognized a $21.1 million impairment  charge in the fourth quarter of 2020. The
factors contributing to the impairment charge principally related to a less favorable outlook on the potential for both significant
oil  spill  events  and  growth  opportunities,  which  negatively  impacted  the  discounted  projected  cash  flows  associated  with  the
standby services permits and their estimated fair value as compared to previous estimates.

The results of the annual assessment of non-amortizing intangible assets undertaken in the fourth quarter of 2019 indicated no
impairment charges were required.

In  connection  with  the  interim  goodwill  impairment  assessment  of  the  Mobile  Recycling  reporting  unit,  we  also  assessed  the
reporting  unit’s  non-amortizing  intangible  permit  asset  for  impairment  as  of  September  30,  2018.  Based  on  the  results  of  that
assessment, the carrying amounts of the non-amortizing intangible permit asset exceeded its estimated fair value and, as a result,
we  recognized  a  $1.8  million  impairment  charge  in  the  third  quarter  of  2018.  The  factors  and  timing  contributing  to  the  non-
amortizing intangible asset charge were the same as the factors and timing described above with regards to the Mobile Recycling
reporting unit goodwill impairment charge.

The results of the annual assessment of non-amortizing intangible assets undertaken in the fourth quarter of 2018 indicated no
impairment charges were required.

Amortizing Tangible and Intangible Assets

We also review amortizing tangible and intangible assets for impairment whenever events or changes in circumstances indicate
that the carrying value of an asset may not be recoverable. In order to assess whether a potential impairment exists, the assets’
carrying  values  are  compared  with  their  undiscounted  expected  future  cash  flows.  Estimating  future  cash  flows  requires
significant judgment about factors such as general economic conditions and projected growth rates, and our estimates often vary
from the cash flows eventually realized. Impairments are measured by comparing the fair value of the asset to its carrying value.
Fair  value  is  generally  determined  by  considering:  (i)  the  internally  developed  discounted  projected  cash  flow  analysis;  (ii)  a
third-party  valuation;  and/or  (iii)  information  available  regarding  the  current  market  environment  for  similar  assets.  If  the  fair
value of an asset is determined to be less than the carrying amount of the asset,

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an  impairment  in  the  amount  of  the  difference  is  recorded  in  the  period  in  which  the  events  or  changes  in  circumstances  that
indicated the carrying value of the asset may not be recoverable occurred.

In connection with the interim goodwill impairment assessment of the EW and International reporting units in the first quarter of
2020, and the annual goodwill impairment assessment of the EW and Field Services reporting units in the fourth quarter of 2020,
we  also  assessed  the  reporting  units’  amortizing  tangible  and  intangible  assets  for  impairment.  Based  on  the  results  of  the
assessment, the carrying amounts of the amortizing tangible and intangible assets did not exceed the estimated undiscounted cash
flows of the asset groups and, as a result, no additional impairment charges were recorded in 2020.

Our  acquired  permits  and  licenses  generally  have  renewal  terms  of  approximately  5-10  years.  We  have  a  history  of  renewing
these permits and licenses as demonstrated by the fact that each of the sites’ treatment permits and licenses have been renewed
regularly  since  the  facility  began  operations.  We  intend  to  continue  to  renew  our  permits  and  licenses  as  they  come  up  for
renewal for the foreseeable future. Costs incurred to renew or extend the term of our permits and licenses are recorded in Selling,
general and administrative expenses in our consolidated statements of operations.

Share Based Payments

On May 27, 2015, the stockholders of Predecessor US Ecology approved the Omnibus Incentive Plan (as amended, “Pre-Merger
Omnibus Plan”), which was approved by Predecessor US Ecology’s Board of Directors on April 7, 2015. In connection with the
closing of the NRC Merger, the Company assumed the Pre-Merger Omnibus Plan, amended and restated such plan and renamed
it the Amended and Restated US Ecology, Inc. Omnibus Incentive Plan for the purpose of issuing replacement awards to award
recipients  under  the  Omnibus  Plan  pursuant  to  the  NRC  Merger  Agreement,  and  for  the  issuance  of  additional  awards  in  the
future.

The  Omnibus  Plan  was  developed  to  provide  additional  incentives  through  equity  ownership  in  US  Ecology  and,  as  a  result,
encourage employees, consultants and non-employee directors to contribute to our success. The Omnibus Plan provides, among
other things, the ability for the Company to grant restricted stock, performance stock, options, stock appreciation rights, restricted
stock units, performance stock units and other share-based awards or cash awards to employees, consultants and non-employee
directors.

The  Omnibus  Plan  expires  on  April  7,  2025  and  authorizes  1,500,000  shares  of  common  stock  for  grant  over  the  life  of  the
Omnibus Plan. As of December 31, 2020, 550,673 shares of common stock remain available for grant under the Omnibus Plan.

Subsequent  to  the  approval  of  the  Pre-Merger  Omnibus  Plan  by  Predecessor  US  Ecology  in  May  2015,  we  stopped  granting
equity awards under the American Ecology Corporation 2008 Stock Option Incentive Plan (the “Pre-Merger 2008 Stock Option
Plan”). However, in connection with the closing of the NRC Merger, the Company assumed the Pre-Merger 2008 Stock Option
Plan, amended and restated such plan and renamed in the Amended and Restated US Ecology, Inc. 2008 Stock Option Incentive
Plan  (the  “2008  Stock-Option  Plan”)  solely  for  the  purpose  of  issuing  replacement  awards  to  award  recipients  thereunder  and
such plan remains in effect solely for the settlement of awards granted under such plan and no future grants may be made under
such  plan.  No  shares  that  are  reserved  but  unissued  under  the  2008  Stock  Option  Plan  or  that  are  outstanding  under  the  2008
Stock Option Plan and reacquired by the Company for any reason will be available for issuance under the Omnibus Plan.

In  addition,  in  connection  with  the  closing  of  the  NRC  Merger,  the  Company  assumed  the  NRC  Group  Holdings  Corp.  2018
Equity Incentive Plan previously maintained by NRC, amended and restated such plan and renamed it the Amended and Restated
US Ecology, Inc. 2018 Equity and Incentive Compensation Plan solely for the purpose of issuing replacement awards to award
recipients thereunder pursuant to the NRC Merger Agreement, and no future grants may be made under such plan.

As of December 31, 2020, we have PSU awards outstanding under the Omnibus Plan. Each PSU represents the right to receive,
on the settlement date, one share of the Company’s common stock. The total number of 2018 PSUs each participant is eligible to
earn ranges from 0% to 200% of the target number of PSUs granted in 2018. The actual number

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of  2018  PSUs  that  will  vest  and  be  settled  in  shares  is  determined  based  on  total  stockholder  return  relative  to  a  set  of  peer
companies, over a three-year performance period. The total number of 2019 PSUs each participant is eligible to earn ranges from
0%  to  300%  of  the  target  number  of  PSUs  granted  in  2019.  The  actual  number  of  2019  PSUs  that  will  vest  and  be  settled  in
shares  is  determined  based  on  achievement  of  certain  Company  financial  performance  metrics  and  total  stockholder  return
relative to a set of peer companies, over a three-year performance period. The actual number of January 2020 PSUs that will vest
and be settled in shares is determined based on the achievement of certain milestones. The total number of July 2020 PSUs each
participant is eligible to earn ranges from 0% to 200% of the target number of PSUs granted in 2020. The actual number of July
2020  PSUs  that  will  vest  and  be  settled  in  shares  is  determined  based  on  total  stockholder  return  relative  to  a  set  of  peer
companies, over a 2.5-year performance period. Refer to Note 19 to the Consolidated Financial Statements in “Part II, Item 8.
Financial Statements and Supplementary Data” of this Annual Report on Form 10-K for a summary of the assumptions utilized in
the Monte Carlo valuation of awards granted during 2020, 2019 and 2018.

As of December 31, 2020, we have stock option awards outstanding under the 2008 Stock Option Plan and the Omnibus Plan.

The  determination  of  fair  value  of  stock  option  awards  on  the  date  of  grant  using  the  Black-Scholes  model  is  affected  by  our
stock price and subjective assumptions. These assumptions include, but are not limited to, the expected term of stock options and
expected stock price volatility over the term of the awards. Refer to Note 19 to the Consolidated Financial Statements in “Part II,
Item 8. Financial Statements and Supplementary Data” of this Annual Report on Form 10-K for a summary of the assumptions
utilized in 2020, 2019 and 2018. Our stock options have characteristics significantly different from those of traded options, and
changes in the assumptions can materially affect the fair value estimates.

The Company has elected to account for forfeitures as they occur, rather than estimate expected forfeitures.

Income Taxes

Our income tax expense, deferred tax assets “DTAs” and deferred tax liabilities “DTLs”, and liabilities for uncertain tax benefits
“UTBs” reflect management’s best estimate of current and future taxes to be paid. We are subject to income taxes in the United
States  and  numerous  foreign  jurisdictions.  Significant  judgments  and  estimates  are  required  in  the  determination  of  the
consolidated income tax expense.

We account for income taxes using an asset and liability method, which requires the recognition of taxes payable or refundable
for the current year and deferred tax assets and liabilities for the expected future tax consequences of temporary differences that
currently exist between the tax basis and the financial reporting basis of our taxable subsidiaries’ assets and liabilities using the
enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax laws and tax
rates  on  deferred  tax  assets  and  liabilities  are  recognized  in  operations  in  the  period  that  includes  the  enactment  date.  The
measurement  of  DTAs  is  reduced,  if  necessary,  by  the  amount  of  any  tax  benefits  that,  based  on  available  evidence,  are  not
expected to be realized.

We regularly assess the need for a valuation allowance against our deferred tax assets. In making that assessment, we consider
both positive and negative evidence related to the likelihood of realization of the deferred tax assets on a jurisdictional basis to
determine, based on the weight of available evidence, whether it is more-likely-than-not that some or all of the deferred tax assets
will  not  be  realized.  Examples  of  positive  and  negative  evidence  include  future  growth,  forecasted  earnings,  future  taxable
income,  the  mix  of  earnings  in  the  jurisdictions  in  which  we  operate,  historical  earnings,  taxable  income  in  prior  years,  if
carryback is permitted under the law and prudent, and feasible tax planning strategies.

We  apply  the  provisions  of  ASC  740  related  to  income  tax  uncertainties  which  clarifies  the  accounting  for  income  taxes  by
prescribing  a  minimum  recognition  threshold  a  tax  position  is  required  to  meet  before  being  recognized  in  the  consolidated
financial  statements.  We  account  for  unrecognized  tax  benefits  using  a  more-likely-than-not  threshold  for  financial  statement
recognition and measurement of tax positions taken or expected to be taken in a tax return. We establish reserves for tax-related
uncertainties  based  on  estimates  of  whether,  and  the  extent  to  which,  additional  taxes  will  be  due.  We  record  an  income  tax
liability, if any, for the difference between the benefit recognized and measured and the tax position taken or expected to be taken
on our tax returns.

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As  of  December  31,  2020,  the  Company  had  accumulated  undistributed  earnings  generated  by  our  foreign  subsidiaries  of
approximately  $64.6 million.  Any additional  taxes  due with respect  to such earnings or the excess of the amount  for financial
reporting over the tax basis of our foreign investments would generally be limited to foreign withholding taxes and state income
taxes. We intend, however, to indefinitely reinvest these earnings and expect future U.S. cash generation to be sufficient to meet
future U.S. cash needs

See Note 17 to the Consolidated Financial Statements in “Part II, Item 8. Financial Statements and Supplementary Data” of this
Annual Report on Form 10 K for additional information regarding income taxes.

Litigation

We  have,  in  the  past,  been  involved  in  litigation  requiring  estimates  of  timing  and  loss  potential  whose  timing  and  ultimate
disposition is controlled by the judicial process.

In the ordinary course of business, we are involved in judicial and administrative proceedings involving federal, state, provincial
or  local  governmental  authorities,  including  regulatory  agencies  that  oversee  and  enforce  compliance  with  permits.  Fines  or
penalties  may  be  assessed  by  our  regulators  for  noncompliance.  Actions  may  also  be  brought  by  individuals  or  groups  in
connection  with  permitting  of  planned  facilities,  modification  or  alleged  violations  of  existing  permits,  or  alleged  damages
suffered  from  exposure  to  hazardous  substances  purportedly  released  from  our  operated  sites,  as  well  as  other  litigation.  We
maintain  insurance  intended  to  cover  property  and  damage  claims  asserted  as  a  result  of  our  operations.  Periodically,
management  reviews  and  may  establish  reserves  for  legal  and  administrative  matters,  or  other  fees  expected  to  be  incurred  in
relation to these matters.

In  December  2010,  National  Response  Corporation,  a  subsidiary  of  NRC  acquired  by  the  Company  in  the  NRC  Merger,  was
named as one of many “Dispersant Defendants” in multi-district litigation, arising out of the explosion of the BP oil rig, filed in
the  U.S.  District  Court  for  the  Eastern  District  of  Louisiana.  The  claims  against  National  Response  Corporation,  and  other
“Dispersant Defendants,” were brought by workers and others who alleged injury arising from post-explosion clean–up efforts,
including  particularly  the  use  of  certain  chemical  dispersants.  In  January  2013,  the  Court  approved  a  Medical  Benefits  Class
Action  Settlement,  which,  among  other  things,  provided  for  a  “class  wide”  settlement  as  well  as  a  release  of  claims  against
Dispersant  Defendants,  including  National  Response  Corporation.  Further,  National  Response  Corporation  successfully  moved
the court to dismiss all claims against it based on derivative immunity, as it was acting at the direction of the U.S. Government. In
early  2018, BP began  asserting  an alleged  contractual  right  of indemnity  against  National  Response  Corporation  and  others  in
post-settlement  lawsuits  brought  by  persons  who  had  either  chosen  not  to  participate  in  the  class-wide  agreement  or  whose
injuries  were  allegedly  manifest  after  the  period  covered  by  the  claim  submission  process.  The  Company  advised  BP  that  it
considers the attempt to bring National Response Corporation back into previously settled litigation to be improper and moved
for  a  declaratory  judgment  that  it  owes  no  indemnity  or  contribution  to  BP,  raising  various  arguments,  including  BP’s  own
actions and conduct over the preceding nine years with respect to these claims (including its failure to seek indemnity) and the
resultant prejudice to National Response Corporation, BP’s waiver of any indemnity, and the court’s prior finding that National
Response  Corporation  is  entitled  to  derivative  immunity.  In  response,  BP  asserted  counterclaims  against  National  Response
Corporation for a declaratory judgment that National Response Corporation must indemnify BP under certain circumstances and
for  unjust  enrichment.  National  Response  Corporation  successfully  moved  to  dismiss  the  unjust  enrichment  claim.  The  parties
filed simultaneous judgment on the pleadings briefs in February 2020, and all oppositions were filed on March 16, 2020. On May
4, 2020, the court found in favor of National Response Corporation, and held that the Company is not liable to BP or any back
end litigation  plaintiffs for any damages related to the Deepwater Horizon oil spill. BP timely appealed the ruling on June 11,
2020. The Company is currently unable to estimate the range of possible losses associated with this proceeding. However, the
Company  also  believes  that,  were  it  deemed  to  have  liability  arising  out  of  or  related  to  BP’s  indemnity  claims,  such  liability
would be covered by an indemnity by SEACOR Holdings Inc., the former owner of National Response Corporation, in favor of
National Response Corporation and its affiliates.

In January 2019, Kevin Sullivan, a driver for NRC from May 1, 2018 to August 22, 2018 filed a class action complaint against
NRC in  California  Superior  Court (Kevin  Sullivan  et. Al. v. National  Response Corp., NRC Environmental  Services,  Inc. and
Paul Taveira et al.) alleging the failure by the defendants to provide meal and rest breaks required by California law and requiring
employees to work off the clock. Mr. Sullivan’s complaint also asserted a claim under the

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California Labor Code Private Attorneys General Act (“PAGA”), which permits an employee to assert a claim for violations of
certain  California  Labor  Code  provisions  on  behalf  of  all  aggrieved  employees  to  recover  statutory  penalties  that  could  be
recovered  by  the  State  of  California.  On  April  17,  2019,  NRC  filed  a  motion  to  compel  individual  arbitration,  strike  Mr.
Sullivan’s  class  action  claims  and  stay  the  PAGA  claim  pending  the  outcome  of  Mr.  Sullivan’s  individual  claim;  the  court
subsequently  granted  NRC’s  motion  to  compel.  In  response,  Mr.  Sullivan  amended  his  complaint  to  dismiss  the  class  claims
without  prejudice  and  proceed  solely  with  the  PAGA  claim.  The  parties  participated  in  a  confidential  mediation  on  August  3,
2020, and reached a settlement resolving the pending PAGA claim. The court issued a Notice of Entry of Judgment on October
30,  2020,  approving  the  parties’  settlement.  The  settlement  administrator  confirmed  that  the  notices  and  aggregate  settlement
payments of $500,000 were paid to aggrieved  employees on December 28, 2020, in accordance with the distribution  timeline.
This matter is resolved.

On November 17, 2018, an explosion occurred at our Grand View, Idaho facility, resulting in one employee fatality and injuries
to other employees. The incident severely damaged the facility’s primary waste-treatment building as well as surrounding waste
handling,  waste  storage,  maintenance  and  administrative  support  structures,  resulting  in  the  closure  of  the  entire  facility  that
remained in effect through January 2019. In addition to initiating and conducting our own investigation into the incident, we fully
cooperated  with  the  Idaho  Department  of  Environmental  Quality,  the  U.S.  Environmental  Protection  Agency  and  the
Occupational Safety and Health Administration (“OSHA”) to support their comprehensive and independent investigations of the
incident. On January 10, 2020, we entered into a settlement agreement with OSHA settling a complaint made by OSHA relating
to  the  incident  for  $50,000.  On  January  28,  2020,  the  Occupational  Safety  and  Health  Review  Commission  issued  an  order
terminating  the  proceeding  relating  to  such  OSHA  complaint.  We  maintain  workers’  compensation  insurance,  business
interruption  insurance  and  liability  insurance  for  personal  injury,  property  and  casualty  damage.  We  believe  that  any  potential
third-party claims associated with the explosion in excess of our deductibles are expected to be resolved primarily through our
insurance policies. Although we carry business interruption insurance, a disruption of our business caused by a casualty event,
including the full and partial closure of our Grand View, Idaho facility, may result in the loss of business, profits or customers
during the time of such closure. Accordingly, our insurance policies may not fully compensate us for these losses. In November
2020, we commenced a lawsuit against the generator and broker of the waste, the treatment of which we believe contributed to
the Grand View explosion, seeking damages in connection with the losses suffered as a result of the incident.

Other than as described herein, we are not currently a party to any material pending legal proceedings and are not aware of any
other  claims  that  could,  individually  or  in  the  aggregate,  have  a  materially  adverse  effect  on  our  financial  position,  results  of
operations  or cash flows.  The decision  to accrue  costs or write-off  assets  is based on the pertinent  facts  and our evaluation  of
present circumstances.

Off Balance Sheet Arrangements

We do not have any off balance sheet arrangements or interests in variable interest entities that would require consolidation. US
Ecology operates through its direct and indirect subsidiaries.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Interest Rate Risk

We do not maintain equities, commodities, derivatives, or any other similar instruments for trading purposes. We have minimal
interest rate risk on investments or other assets due to our preservation of capital approach to investments. At December 31, 2020,
$5.6 million  of restricted  cash was invested  in fixed-income  U.S. Treasury  and U.S. government  agency  securities  and money
market accounts.

We are exposed to changes in interest rates as a result of our Revolving Credit Facility and term loan borrowings under the Credit
Agreement.  Our  Revolving  Credit  Facility  borrowings  incur  interest  at  a  base  rate  (as  defined  in  the  Credit  Agreement)  or
LIBOR, at  the  Company’s  option,  plus  an  applicable  margin  which  is  determined  according  to  a  pricing  grid  under  which  the
interest rate decreases or increases based on our ratio of funded debt to consolidated earnings before interest, taxes, depreciation
and  amortization  (as  defined  in  the  Credit  Agreement).  Our  term  loan  bears  interest  at  LIBOR  plus  2.25%  or  a  base  rate  plus
1.25% (with a step-up to LIBOR plus 2.50% or a base rate plus 1.50% in the event that US

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Ecology credit ratings are not BB (with a stable or better outlook) or better from S&P and Ba2 (with a stable or better outlook) or
better from Moody’s).

In March 2020, the Company entered into an interest rate swap agreement with the intention of hedging the Company’s interest
rate  exposure  on  a  portion  of  the  Company’s  outstanding  LIBOR-based  variable  rate  debt.  Under  the  terms  of  the  swap,  the
Company  pays  interest  at  the  fixed  effective  rate  of  0.83%  and  receives  interest  at  the  variable  one-month  LIBOR  rate  on  an
initial notional amount of $500.0 million.

As  of  December  31,  2020,  there  were  $347.0  million  of  Revolving  Credit  Facility  loans  and  $445.5  million  of  term  loans
outstanding under the Credit Agreement. If interest rates were to rise and outstanding balances remain unchanged, we would be
subject  to  higher  interest  payments  on  our  outstanding  debt.  Subsequent  to  the  effective  date  of  the  interest  rate  swap  on
March 31, 2020, we are subject to higher interest payments on only the unhedged borrowings under the Credit Agreement and the
term loan.

Based on the outstanding indebtedness of $792.5 million under the Credit Agreement at December 31, 2020 and the impact of
our interest rate hedge, if market rates used to calculate interest expense were to average 1% higher in the next twelve months,
our interest expense would increase by approximately $1.2 million for the corresponding period.

Foreign Currency Risk

We are subject to foreign currency exchange risk through our international operations. While we operate primarily in the United
States  and,  accordingly,  most  of  our  consolidated  revenue  and  associated  expenses  are  denominated  in  USD. During  2020  we
recorded  approximately  $73.3  million,  or  8%,  of  our  revenue  in  Canada,  $19.9  million,  or  2%,  of  our  revenue  in  the  EMEA
region,  and  less  than  1%  of  our  revenue  from  other  international  regions.  Revenue  and  expenses  denominated  in  foreign
currencies may be affected by movements in foreign currency exchange rates.

Our exposure to foreign currency exchange risk in our Consolidated Balance Sheets relates primarily to cash, trade payables and
receivables, and intercompany loans that are denominated in foreign currencies, primarily CAD. Contracts for services that our
foreign  subsidiaries  provide  to  customers  are  often  denominated  in  currencies  other  than  their  local  functional  currency.  The
resulting cash, receivable and payable accounts are subject to non-cash foreign currency translation gains or losses.

We established intercompany loans with certain of our Canadian subsidiaries, as part of a tax and treasury management strategy
allowing for repayment of third-party bank debt. These intercompany loans are payable using CAD and are subject to mark-to-
market  adjustments  with  movements  in  the  CAD.  At  December  31,  2020,  we  had  $32.9  million  of  intercompany  loans
outstanding between our Canadian subsidiaries and US Ecology. During 2020, the CAD strengthened as compared to the USD
resulting in a $826,000 non-cash foreign currency translation gain being recognized in the Company’s consolidated statements of
operations related to the intercompany loans. Based on intercompany balances as of December 31, 2020, a $0.01 CAD increase
or decrease in currency rate compared to the USD at December 31, 2020 would have generated a gain or loss of approximately
$329,000 for the year ended December 31, 2020.

We had a total pre-tax foreign currency loss of $1.1 million for the year ended December 31, 2020. We currently have no foreign
exchange contracts, option contracts or other foreign currency hedging arrangements. Management evaluates our risk position on
an ongoing basis to determine whether foreign exchange hedging strategies should be employed.

Commodity Price Risk

We  have  exposure  to  commodity  pricing  for  oil  and  gas.  Fluctuations  in  oil  and  gas  commodity  prices  may  impact  business
activity in the industries that we serve, affecting demand for our services and our future earnings and cash flows. We have not
entered into any derivative contracts to hedge our exposure to commodity price risk.

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ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Report of Independent Registered Public Accounting Firm
Consolidated Balance Sheets as of December 31, 2020 and 2019
Consolidated Statements of Operations for the years ended December 31, 2020, 2019 and 2018
Consolidated Statements of Comprehensive (Loss) Income for the years ended December 31, 2020, 2019 and 2018
Consolidated Statements of Cash Flows for the years ended December 31, 2020, 2019 and 2018
Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2020, 2019 and 2018
Notes to Consolidated Financial Statements

Page 
Number
86
89
90
91
92
93
94

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the shareholders and the Board of Directors of US Ecology, Inc.

Opinions on the Financial Statements and Internal Control over Financial Reporting

We  have  audited  the  accompanying  consolidated  balance  sheets  of  US  Ecology,  Inc.  and  subsidiaries  (the  “Company”)  as  of
December  31,  2020  and  2019,  the  related  consolidated  statements  of  operations,  comprehensive  income  (loss),  stockholders’
equity,  and cash  flows,  for  each  of the three  years  in  the  period  ended December  31, 2020, and  the related  notes (collectively
referred  to  as  the  "financial  statements").  We  have  also  audited  the  Company's  internal  control  over  financial  reporting  as  of
December 31, 2020, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of
Sponsoring Organizations of the Treadway Commission (COSO).

In  our  opinion,  the  financial  statements  referred  to  above  present  fairly,  in  all  material  respects,  the  financial  position  of  the
Company as of December 31, 2020 and 2019, and the results of its operations and its cash flows for each of the three years in the
period ended December 31, 2020, in conformity with accounting principles generally accepted in the United States of America.
Also, in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of
December 31, 2020, based on criteria established in Internal Control — Integrated Framework (2013) issued by COSO.

Basis for Opinions

The  Company’s  management  is  responsible  for  these  financial  statements,  for  maintaining  effective  internal  control  over
financial  reporting,  and  for  its  assessment  of  the  effectiveness  of  internal  control  over  financial  reporting,  included  in  the
accompanying Management’s Annual Report on Internal Controls over Financial Reporting. Our responsibility is to express an
opinion  on  these  financial  statements  and  an  opinion  on  the  Company’s  internal  control  over  financial  reporting  based  on  our
audits.  We  are  a  public  accounting  firm  registered  with  the  Public  Company  Accounting  Oversight  Board  (United  States)
(PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and
the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the
audits  to  obtain  reasonable  assurance  about  whether  the  financial  statements  are  free  of material  misstatement,  whether  due to
error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.

Our audits of the financial statements included performing procedures to assess the risks of material misstatement of the financial
statements,  whether  due  to  error  or  fraud,  and  performing  procedures  to  respond  to  those  risks.  Such  procedures  included
examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included
evaluating  the  accounting  principles  used  and  significant  estimates  made  by  management,  as  well  as  evaluating  the  overall
presentation of the financial statements. Our audit of internal control over financial reporting included obtaining an understanding
of  internal  control  over  financial  reporting,  assessing  the  risk  that  a  material  weakness  exists,  and  testing  and  evaluating  the
design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other
procedures  as  we  considered  necessary  in  the  circumstances.  We  believe  that  our  audits  provide  a  reasonable  basis  for  our
opinions.

Definition and Limitations of Internal Control over Financial Reporting

A  company’s  internal  control  over  financial  reporting  is  a  process  designed  to  provide  reasonable  assurance  regarding  the
reliability  of  financial  reporting  and  the  preparation  of  financial  statements  for  external  purposes  in  accordance  with  generally
accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that
(1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions
of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of
financial  statements  in  accordance  with  generally  accepted  accounting  principles,  and  that  receipts  and  expenditures  of  the
company are being made only in accordance with authorizations of management and directors of the company; and (3) provide
reasonable assurance regarding prevention or timely detection of

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unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because  of  its  inherent  limitations,  internal  control  over  financial  reporting  may  not  prevent  or  detect  misstatements.  Also,
projections  of  any  evaluation  of  effectiveness  to  future  periods  are  subject  to  the  risk  that  controls  may  become  inadequate
because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Critical Audit Matters

The critical  audit matter communicated  below is a matter arising from the current-period  audit of the financial statements  that
was communicated or required to be communicated to the audit committee and that (1) relates to accounts or disclosures that are
material  to  the  financial  statements  and  (2)  involved  our  especially  challenging,  subjective,  or  complex  judgments.  The
communication of a critical audit matter does not alter in any way our opinion on the financial statements, taken as a whole, and
we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the
accounts or disclosures to which it relates.

Impairment  Assessment  –  Goodwill  In  the  Energy  Waste  and  Field  Services  Reporting  Units  and  Non  Amortizing  Standby
Services Permit Intangible Asset - Refer to Notes 2, 3, and 13 to the consolidated financial statements

Critical Audit Matter Description

The  Company’s  evaluation  of  goodwill  for  impairment  involves  the  comparison  of  the  estimated  fair  value  of  each  of  the
Company’s  reporting  units  to  their  respective  carrying  value.  Determination  of  the  estimated  fair  value  of  a  reporting  unit
requires judgement as to the future operating results of the reporting unit as well as the level of risks inherent in the projections.
 The Company estimates the fair value of its reporting units using either an income approach or a weighting of fair values derived
from the income and market approaches.

The determination of fair value using the income approach is based on the present value of estimated future cash flows, which
requires management to make significant estimates and assumptions of revenue growth rates and operating margins, and selection
of the discount rates.

The determination of the fair value using the market approach requires management to make significant assumptions related to
market  multiples  of  revenue  and  earnings  derived  from  comparable  publicly-traded  companies  with  similar  operating  and
investment characteristics as the reporting unit.

The  Company’s  evaluation  of  non-amortizing  intangible  assets  for  impairment  involves  the  comparison  of  the  estimated  fair
value of the individual intangible assets to their respective carrying values.  Fair value is generally determined by considering an
internally  developed  discounted  projected  cash  flow  analysis.  Estimating  future  cash  flows  requires  management  to  make
significant judgments about factors such as general economic conditions and projected growth rates as well as the selection of
discount rates.

Changes in these estimates and assumptions could have a significant impact on the determination of the estimated fair value, and
any related goodwill or non-amortizing intangible asset impairment charge.

The  Company  evaluates  goodwill  and  non-amortizing  intangible  assets  for  impairment  annually,  and  more  frequently  if
circumstances indicate the possibility of impairment.

During  2020,  the  Company  identified  impairment  of  goodwill  related  to  the  Energy  Waste  (“EW”)  reporting  unit.    This
impairment  was  due  to  historically-low  energy  commodity  prices  which  reduced  anticipated  energy-related  exploration  and
production  investments  and  expenditures  by  the  Company’s  energy  industry  customers.  Based  on  quantitative  analyses
performed, the Company determined that the carrying value of its EW reporting unit exceeded its fair value by an amount that
was greater than its assigned goodwill. As a result, the Company recorded goodwill impairment charges totaling $363.9 million.

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During 2020, the Company also identified an impairment of goodwill related to the Field Services reporting unit in its annual test.
 This impairment was principally related to an increase in the risk-adjusted rate used to discount the projected cash flows of the
reporting unit as well as a slower than expected recovery to cash flow levels forecasted prior to the COVID-19 pandemic, which
negatively  impacted  the  reporting  unit’s  prospective  financial  information.    As  a  result,  the  Company  recorded  an  impairment
charge of $14.4 million.

During 2020, the Company further identified an impairment of its non-amortizing standby services permits intangible asset in its
annual test.  This impairment principally related to a less favorable outlook on the potential for both significant oil spill events
and growth opportunities, which negatively impacted the projected cash flows associated with the standby services permits and
their estimated fair value.  As a result, the Company recorded an impairment charge of $21.1 million.

We  identified  the  evaluation  of  the  EW  and  Field  Services  reporting  units’  goodwill  impairment  assessments  as  well  as  the
evaluation of the standby services permit intangible asset impairment assessment as a critical audit matter because small changes
to  valuation  assumptions,  specifically  the  forecasted  cash  flows  and  the  discount  rate,  could  have  a  significant  impact  on  the
reporting unit and intangible asset concluded fair values.

Auditing  these  assumptions  involved  extensive  audit  effort,  including  the  need  to  involve  our  fair  value  specialists,  due  to  the
complexity  of  these  assumptions  and  a  high  degree  of  auditor  judgment  when  performing  audit  procedures  and  evaluating  the
results of those procedures.

How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures related to the forecasted cash flows and the selection of the discount rate for the impairment tests included
the following:

● We  tested  the  effectiveness  of  controls  over  the  management’s  goodwill  and  non-amortizing  intangible  asset  impairment
evaluations, including the controls related to management’s forecasted cash flows and the selection of the discount rate, as
well as the identification of interim impairment indicators for the EW reporting unit.

● We evaluated management’s ability to accurately forecast by comparing actual results to management’s historical forecasts.

● We performed a sensitivity analysis to evaluate the risk of material misstatement of key business and valuation assumptions

used in the fair value model.

● We evaluated the reasonableness of management’s cash flow forecasts by comparing the forecasts to:

Historical forecasts and results of operations.

Internal communications to management and the Board of Directors.

Information included in Company press releases as well as in analyst and industry reports for the Company and certain
of its peer companies.

● With  the  assistance  of  our  fair  value  specialists,  we  evaluated  the  reasonableness  of  the  valuation  methodology  used  and

evaluated the reasonableness of the discount rate applied by:

Testing the source information underlying the determination of the discount rate and the mathematical accuracy of the
calculation.

Developing a range of independent estimates and comparing those to the discount rate selected by management.

/s/ DELOITTE & TOUCHE LLP

Boise, Idaho
February 26, 2021

We have served as the Company’s auditor since 2009.

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US ECOLOGY, INC.

CONSOLIDATED BALANCE SHEETS

(In thousands, except per share amounts)

Assets
Current Assets:

Cash and cash equivalents
Receivables, net
Prepaid expenses and other current assets
Income taxes receivable
Total current assets

Property and equipment, net
Operating lease assets
Restricted cash and investments
Intangible assets, net
Goodwill
Other assets

Total assets

Liabilities and Stockholders’ Equity
Current Liabilities:
Accounts payable
Deferred revenue
Accrued liabilities
Accrued salaries and benefits
Income taxes payable
Current portion of long-term debt
Current portion of closure and post-closure obligations
Current portion of operating lease liabilities

Total current liabilities

Long-term debt
Long-term closure and post-closure obligations
Long-term operating lease liabilities
Other long-term liabilities
Deferred income taxes, net

Total liabilities

Commitments and contingencies (See Note 18)

Stockholders’ Equity:

Common stock $0.01 par value per share, 50,000 authorized; 31,512 and 31,461 shares issued
and outstanding, respectively
Additional paid-in capital
Retained (deficit) earnings
Treasury stock, at cost, 358 and 0 shares, respectively
Accumulated other comprehensive loss

Total stockholders’ equity

Total liabilities and stockholders’ equity

As of December 31, 

2020

2019

$

$

$

73,848
241,978
28,379
18,279
362,484

456,637
51,474
5,598
523,988
413,037
18,065
1,831,283

35,881
15,267
59,296
30,918
977
3,359
6,471
17,048
169,217

782,484
89,398
35,069
32,201
120,983
1,229,352

41,281
255,310
25,136
11,244
332,971

478,768
57,396
5,069
574,902
766,980
15,158
2,231,244

46,906
14,788
65,869
29,653
726
3,359
2,152
17,317
180,770

765,842
84,231
39,954
20,722
128,345
1,219,864

315
820,567
(188,452)
(15,841)
(14,658)
601,931
1,831,283

$

315
816,345
206,574
—
(11,854)
1,011,380
2,231,244

$

$

$

$

The accompanying notes are an integral part of these consolidated financial statements.

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US ECOLOGY, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share amounts)

Revenue
Direct operating costs
Gross profit
Selling, general and administrative expenses
Goodwill and intangible asset impairment charges
Operating (loss) income
Other income (expense):

Interest income
Interest expense
Foreign currency (loss) gain
Other

Total other expense

(Loss) income before income taxes
Income tax (benefit) expense
Net (loss) income

(Loss) earnings per share:

Basic
Diluted

Shares used in (loss) earnings per share calculation:

Basic
Diluted

For the Year Ended December 31, 
2018
2019
2020
$ 565,928
$ 685,509
$ 933,854
  395,834
  475,675
688,805
  170,094
  209,834
245,049
92,340
  141,123
201,067
3,666
—
404,900
74,088
68,711
(360,918)

258
(32,595)
(1,134)
788
(32,683)

605
(19,239)
(733)
455
(18,912)

(393,601)
(4,242)
$ (389,359) $

49,799
16,659
33,140

$
$

(12.51) $
(12.51) $

1.41
1.40

215
(12,130)
55
2,630
(9,230)

64,858
15,263
49,595

2.27
2.25

$

$
$

31,126
31,126

23,521
23,749

21,888
22,047

The accompanying notes are an integral part of these consolidated financial statements.

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US ECOLOGY, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME

(In thousands)

Net (loss) income

Other comprehensive income (loss):

For the Year Ended December 31, 
2018
$ 49,595

$ (389,359) $ 33,140

2019

2020

Foreign currency translation gain (loss)
Net changes in interest rate hedge, net of taxes of $(1,557), $(488) and $375,
respectively

Comprehensive (loss) income, net of tax

3,055

  3,772

(6,094)

(5,859)

(1,835)
$ (392,163) $ 35,077

1,407
$ 44,908

The accompanying notes are an integral part of these consolidated financial statements.

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US ECOLOGY, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

Cash flows from operating activities:

Net (loss) income
Adjustments to reconcile net (loss) income to net cash provided by operating activities:

Depreciation and amortization of property and equipment
Amortization of intangible assets
Accretion of closure and post-closure obligations
Goodwill and intangible asset impairment charges
Integration-related property and equipment charges
Property and equipment impairment charges
Unrealized foreign currency (gain) loss
Deferred income taxes
Share-based compensation expense
Share-based payments of business development and integration expenses
Unrecognized tax benefits
Net loss on disposition of assets
Gain on insurance proceeds from damaged property and equipment
Amortization and write-off of debt issuance costs
Amortization and write-off of debt discount
Change in fair value of contingent consideration
Changes in assets and liabilities (net of effects of business acquisitions):

Receivables
Income taxes receivable
Other assets
Accounts payable and accrued liabilities
Deferred revenue
Accrued salaries and benefits
Income taxes payable
Closure and post-closure obligations

Net cash provided by operating activities

Cash flows from investing activities:

Business acquisitions (net of cash acquired)
Purchases of property and equipment
Insurance proceeds from damaged property and equipment
Minority interest investment
Proceeds from sale of property and equipment
Payment of acquired contingent consideration liabilities
Purchases of restricted investments
Proceeds from sale of restricted investments

Net cash used in investing activities

Cash flows from financing activities:

Proceeds from long-term debt
Payments on long-term debt
Payments on short-term borrowings
Proceeds from short-term borrowings
Repurchase of common stock
Dividends paid
Payment of acquired contingent consideration liabilities
Deferred financing costs paid
Payment of equipment financing obligations
Proceeds from exercise of stock options

Net cash (used in) provided by financing activities

Effect of foreign exchange rate changes on cash

Increase in Cash and cash equivalents and restricted cash
Cash and cash equivalents and restricted cash at beginning of year
Cash and cash equivalents and restricted cash at end of year

Reconciliation of Cash and cash equivalents and restricted cash

Cash and cash equivalents at beginning of year
Restricted cash at beginning of year
Cash and cash equivalents and restricted cash at beginning of year
Cash and cash equivalents at end of year
Restricted cash at end of year
Cash and cash equivalents and restricted cash at end of year

For the Year Ended December 31, 
2019

2018

2020

$

(389,359)

$

33,140

$

49,595

66,561
37,344
4,000
404,900
3,067
—
(1,472)
(4,148)
6,651
1,182
(8)
1,504
—
2,217
161
(3,682)

8,381
(7,049)
(5,443)
(13,628)
(1,619)
(121)
(549)
(1,744)
107,146

(3,309)
(57,399)
1,305
—
1,897
—
(1,615)
1,483
(57,638)

90,000
(74,500)
(72,353)
72,353
(18,332)
(5,667)
(2,517)
(1,144)
(6,327)
28
(18,459)

1,915

32,964
42,140
75,104

41,281
859
42,140
73,848
1,256
75,104

$

$

$

41,423
15,491
4,388
—
—
25
(666)
6,601
5,544
3,717
(238)
426
(12,366)
1,007
27
349

(9,357)
(4,163)
(2,163)
(10,706)
967
8,326
(244)
(1,912)
79,616

(399,599)
(58,100)
12,714
(7,870)
1,182
(4,000)
(1,197)
1,145
(455,725)

491,875
(80,000)
(77,997)
77,997
(915)
(15,890)
—
(9,416)
(1,539)
319
384,434

1,062

9,387
32,753
42,140

31,969
784
32,753
41,281
859
42,140

$

$

$

29,207
9,645
3,707
3,666
—
—
1,211
5,906
4,366
—
485
370
(347)
810
—
—

(32,301)
(7,072)
(1,187)
14,301
2,059
2,476
(3,512)
(1,900)
81,485

(108,382)
(40,757)
—
—
493
—
(1,023)
910
(148,759)

87,000
—
—
—
(314)
(15,804)
—
—
(448)
2427
72,861

(1,633)

3,954
28,799
32,753

27,042
1,757
28,799
31,969
784
32,753

$

$

$

The accompanying notes are an integral part of these consolidated financial statements.

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US ECOLOGY, INC.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(In thousands, except share amounts)

Balance at December 31, 2017
Net income
Other comprehensive loss
Dividends paid
Share-based compensation
Stock option exercises
Repurchase of common stock: 5,564 shares
Issuance of restricted common stock
Issuance of performance common stock
Issuance of restricted common stock from treasury shares
Balance at December 31, 2018
Net income
Other comprehensive income
Common stock issued in NRC Merger
Replacement warrants, restricted stock and stock options issued in NRC
Merger
Dividends paid
Share-based compensation
Share-based payments of business development and integration expenses
Stock option exercises
Repurchase of common stock: 14,462 shares
Issuance of restricted common stock
Issuance of performance common stock
Issuance of restricted common stock from treasury shares
Cancellation of treasury shares
Balance at December 31, 2019
Net loss
Other comprehensive loss
Dividends paid
Share-based compensation
Share-based payments of business development and integration expenses
Stock option exercises
Repurchase of common stock: 414,769 shares
Issuance of restricted common stock
Issuance of performance common stock
Issuance of restricted common stock from treasury shares
Balance at December 31, 2020

Common
Shares
Issued
21,849,165
—
—  
—  
—  

143,220
—
44,949
2,810

—  

22,040,144
—
—  

9,337,949

Common

Additional
Paid-In
     Stock      Capital
177,498
—
—
—
4,366
2,428
—
(278)
(169)
(11)
183,834
—
—
581,008

218
—
—
—
—
1
—
1
—
—
220
—
—
93

—  
—  
—  
—  

8,235
—
78,175
9,540

—  

(13,359)
31,460,684
—
—  
—  
—  
—  

3,142
—
45,111
3,387

—  
$

31,512,324

—
—
—
—
—
—
2
—
—
—
315
—
—
—
—
—
—
—
—
—
—
315

45,359
—
5,544
3,717
319
—
(1,516)
(634)
(514)
(772)
816,345
—
—
—
6,651
1,182
28
—
(286)
(210)
(3,143)
$ 820,567

Retained
Earnings
(Deficit)
155,533
49,595
—
(15,804)
—
—
—
—
—
—
189,324
33,140
—
—

—
(15,890)
—
—
—
—
—
—
—
—
206,574
(389,359)
—
(5,667)
—
—
—
—
—
—
—
$ (188,452)

Accumulated
Other
Comprehensive

Treasury

     Stock      Income (Loss)     

(68)
—
—
—
—
—
(313)
—
—
11
(370)
—
—
—

—
—
—
—
—
(916)
—
—
514
772
—
—
—
—
—
—
—
(18,332)
—
—
2,491
$ (15,841)

$

(9,104)
—
(4,687)
—
—
—
—
—
—
—
(13,791)
—
1,937
—

—
—
—
—
—
—
—
—
—
—
(11,854)
—
(2,804)
—
—
—
—
—
—
—
—
(14,658)

Total
324,077
49,595
(4,687)
(15,804)
4,366
2,429
(313)
(277)
(169)
—
359,217
33,140
1,937
581,101

45,359
(15,890)
5,544
3,717
319
(916)
(1,514)
(634)
—
—
1,011,380
(389,359)
(2,804)
(5,667)
6,651
1,182
28
(18,332)
(286)
(210)
(652)
601,931

$

The accompanying notes are an integral part of these financial statements.

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US ECOLOGY, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1. DESCRIPTION OF BUSINESS

US  Ecology  Holdings,  Inc.,  the  predecessor  to  the  Company  (“Predecessor  US  Ecology”),  was  incorporated  as  a  Delaware
corporation in March 1987 as American Ecology Corporation. On February 22, 2010, Predecessor US Ecology changed its name
from American Ecology Corporation to US Ecology, Inc. On November 1, 2019, in connection with the Company’s acquisition
of NRC Group Holdings Corp. (“NRC”), a new parent entity of US Ecology completed a merger transaction with Predecessor US
Ecology and became the successor to Predecessor US Ecology and changed its name to “US Ecology, Inc.” In connection with
the closing of the NRC Merger (as defined below), Predecessor US Ecology changed its name to “US Ecology Holdings, Inc.”
US Ecology, Inc., through its subsidiaries, is a leading North American  provider of environmental  services  to commercial  and
government entities. The Company addresses the complex waste management needs of its customers, offering treatment, disposal
and recycling of hazardous and radioactive waste, as well as a wide range of complementary field services. US Ecology, Inc. and
its  predecessors  have  been  protecting  the  environment  since  1952,  with  operations  primarily  in  the  United  States,  Canada,  the
Europe, Middle East, and Africa (“EMEA”) region and Mexico. Throughout these consolidated financial statements words such
as “we,” “us,” “our,” “US Ecology” and the “Company” refer to US Ecology, Inc. and its subsidiaries.

On  November  1,  2019,  pursuant  to  and  subject  to  the  conditions  set  forth  in  the  Agreement  and  Plan  of  Merger  (the  “NRC
Merger  Agreement”)  by  and  among  the  Company,  NRC,  Predecessor  US  Ecology,  Rooster  Merger  Sub,  Inc.  (“NRC  Merger
Sub”), and ECOL Merger Sub, Inc. (“ECOL Merger Sub”), ECOL Merger Sub merged with and into Predecessor US Ecology,
with  Predecessor  US  Ecology  continuing  as  the  surviving  company  and  as  a  wholly-owned  subsidiary  of  the  Company.
Substantially  concurrently  therewith,  NRC  Merger  Sub  merged  with  and  into  NRC,  with  NRC  continuing  as  the  surviving
company and as a wholly-owned subsidiary of the Company. Following the completion of the mergers (collectively, the “NRC
Merger”), the Company contributed all of the issued and outstanding equity interests of NRC to Predecessor US Ecology so that,
after such contribution, NRC became a wholly-owned subsidiary of Predecessor US Ecology.

Effective as of November 1, 2019, the Company changed its name from “US Ecology Parent, Inc.” to “US Ecology, Inc.,” the
Company’s common stock and warrants began trading on Nasdaq under the symbol “ECOL” and “ECOLW,” respectively. The
Company  identified  itself  as  the  successor  issuer  to  Predecessor  US  Ecology  pursuant  to  Rule  12g-3(c)  under  the  Securities
Exchange Act of 1934, as amended.

Effective in the fourth quarter of 2020, we have made changes to the manner in which we manage our business, make operating
decisions and assess our performance. The energy waste business that was acquired through the NRC Merger now comprises our
Energy Waste segment. Prior to this change, the energy waste business was included in the Waste Solutions segment (formerly
“Environmental Services”). Throughout this Annual Report on Form 10-K, all periods presented have been recast to reflect these
changes. Under our new structure our operations are managed in three reportable segments reflecting our internal management
reporting structure and nature of services offered as follows:

Waste Solutions (formerly  “Environmental Services”)—This segment provides a broad range of specialty  material
management  services  including  transportation,  recycling,  treatment  and  disposal  of  hazardous,  non-hazardous  and
radioactive waste at Company-owned or operated landfill, wastewater, deep-well injection and other treatment facilities,
excluding the services within our Energy Waste segment.

Field  Services  (formerly  “Field  &  Industrial  Services”)—This  segment  provides  specialty  field  services  and  total
waste  management  solutions  to  commercial  and  industrial  facilities  and  to  government  entities  through  our  10-day
transfer  facilities  and  at  customer  sites,  both  domestic  and  international.  Specialty  field  services  include  standby
services, emergency response, industrial cleaning and maintenance, remediation, lab packs, retail

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services,  transportation,  and  other  services.  Total  waste  management  services  include  on-site  management,  waste
characterization, transportation and disposal of non- hazardous and hazardous waste.

Energy Waste—This segment provides energy-related services and waste disposal services predominately to upstream
energy customers currently concentrated in the Eagle Ford and Permian Basin. Services include spill containment and
site remediation, equipment cleaning & maintenance services, specialty equipment rental, including tanks, pumps and
containment,  safety  monitoring  and  management  and  transportation  and  disposal.  This  segment  includes  all  of  the
energy waste business of the legacy NRC operations and none of the legacy US Ecology operations.

NOTE 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Principles of Consolidation

The accompanying financial statements are prepared on a consolidated basis. All inter-company balances and transactions have
been eliminated in consolidation. Our year-end is December 31.

Cash and Cash Equivalents

Cash and cash equivalents consist primarily of cash on deposit, money market accounts or short-term investments with original
maturities  of  90  days  or  less  at  the  date  of  acquisition.  Cash  and  cash  equivalents  totaled  $73.8  million  and  $41.3  million  at
December  31,  2020  and  2019,  respectively.  At  December  31,  2020  and  2019,  we  had  $59.3  million  and  $35.2  million,
respectively, of cash at our operations outside the United States.

Receivables

Our receivables include invoiced and unbilled amounts where the Company has an unconditional right to payment.

Receivables are stated at an amount management expects to collect. Based on management’s assessment of the credit history of
the  customers  having  outstanding  balances  and  factoring  in  current  economic  conditions,  management  has  concluded  that
potential unidentified losses on balances outstanding at year-end will not be material.

Unbilled receivables are recorded for work performed under contracts that have not yet been invoiced to customers and arise due
to the timing of billings. Substantially all unbilled receivables at December 31, 2020, were billed in the following month.

Restricted Cash and Investments

Restricted cash and investments of $5.6 million and $5.1 million at December 31, 2020 and 2019, respectively, represent funds
held in third-party managed trust accounts as collateral for our financial assurance obligations for post-closure activities at our
non-operating facilities. These funds are invested in fixed-income U.S. Treasury and government agency securities and money
market accounts. The balances are adjusted monthly to fair market value based on quoted prices in active markets for identical or
similar assets.

Revenue Recognition

Revenues  are  recognized  when control  of  the  promised  services  is  transferred  to  our  customers,  in  an  amount  that  reflects  the
consideration we expect to be entitled to in exchange for those services.

We recognize revenue from three primary sources: (1) waste treatment, recycling and disposal services, (2) field and industrial
waste management services, and (3) waste transportation services.

Our waste treatment and disposal customers are legally obligated to properly treat and dispose of their waste in accordance with
local, state, and federal laws and regulations. As our customers do not possess the resources to properly treat and

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dispose of their waste independently, they contract with the Company to perform these services. Waste treatment, recycling, and
disposal revenue results primarily from fixed fees charged to customers for treatment and/or disposal or recycling of specified
wastes. Waste treatment, recycling, and disposal revenue is generally charged on a per-ton or per-yard basis based on contracted
prices and is recognized over time as the services are performed. Our treatment and disposal services are generally performed as
the waste is received and considered complete upon final disposal.

Field  and  industrial  waste  management  services  revenue  results  primarily  from  specialty  onsite  services  such  as  high-pressure
cleaning,  tank  cleaning,  decontamination,  remediation,  transportation,  spill  cleanup  and  emergency  response  at  refineries,
chemical  plants,  steel  and  automotive  plants,  and  other  government,  commercial  and  industrial  facilities.  We  also  provide
hazardous waste packaging and collection services and total waste management solutions at customer sites and through our 10-
day transfer facilities. These services are provided based on purchase orders or agreements with the customer and include prices
based upon daily, hourly or job rates for equipment, materials and personnel. Generally, the pricing in these types of contracts is
fixed, but the quantity of services to be provided during the contract term is variable and revenues are recognized over the term of
the  agreements  or  as  services  are  performed.  As  we  have  a  right  to  consideration  from  our  customers  in  an  amount  that
corresponds  directly  with  the  value  to  the  customer  of  the  Company’s  performance  completed  to  date,  we  have  applied  the
practical expedient to recognize revenue in the amount to which we have the right to invoice. Additionally, we have customers
that pay annual retainer fees, primarily for our standby services, under long-term or evergreen contracts. Such retainer fees are
recognized  over  time  as  the  services  are  performed  and  it  is  probable  that  a  significant  reversal  in  the  amount  of  cumulative
revenue recognized on the contracts will not occur.

Transportation and logistics revenue results from delivering customer waste to a disposal facility for treatment and/or disposal or
recycling. Transportation services are generally not provided on a stand-alone basis and instead are bundled with other Company
services. However, in some instances we provide transportation and logistics services for shipment of waste from cleanup sites to
disposal  facilities  operated  by  other  companies.  For  such  arrangements,  we  allocate  revenue  to  each  performance  obligation
based on its relative  standalone  selling  price.  We  generally  determine  standalone  selling  prices  based on the prices  charged  to
customer or using expected cost plus margin. Transportation revenue is recognized over time as the waste is transported.

Taxes  and  fees  collected  from  customers  concurrent  with  revenue-producing  transactions  to  be  remitted  to  governmental
authorities are excluded from revenue.

Our Richland, Washington disposal facility is regulated by the Washington Utilities and Transportation Commission (“WUTC”),
which approves our rates for disposal of low-level radioactive waste (“LLRW”). Annual revenue levels are established based on a
rate agreement with the WUTC at amounts sufficient to cover the costs of operation, including facility maintenance, equipment
replacement and related costs, and provide us with a reasonable profit. Per-unit rates charged to LLRW customers during the year
are based on our evaluation of disposal volume and radioactivity projections submitted to us by waste generators. Our proposed
rates are then reviewed and approved by the WUTC. If annual revenue exceeds the approved levels set by the WUTC, we are
required to refund excess collections to facility users on a pro-rata basis. Refundable excess collections, if any, are recorded in
Accrued liabilities in the consolidated balance sheets. The current rate agreement with the WUTC was extended in 2019 and is
effective until December 31, 2025.

Deferred Revenue

We record deferred revenue when cash payments are received, or advance billings are charged, prior to performance of services,
such as waste that has been received but not yet treated or disposed, and is recognized when these services are performed. During
the year ended December 31, 2020 and 2019, we recognized $14.7 million and $10.4 million of revenue that was included in the
deferred revenue balance at the beginning of each year, respectively.

Property and Equipment

Property  and  equipment  are  recorded  at  cost  and  depreciated  on  the  straight-line  method  over  estimated  useful  lives.
Replacements and major repairs of property and equipment are capitalized and retirements are made when assets are disposed of
or when the useful life has been exhausted. Minor components and parts are expensed as incurred. Repair and

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maintenance  expenses  were  $26.9  million,  $20.5  million  and  $17.5  million  for  the  years  ended  December  31,  2020, 2019  and
2018, respectively.

We assume no salvage value for our depreciable fixed assets. The estimated useful lives for significant property and equipment
categories are as follows:

Vehicles, vessels and other equipment
Disposal facility and equipment
Buildings and improvements
Railcars

Disposal Cell Accounting

     Useful Lives

3 to 10 years
3 to 20 years
5 to 40 years
40 years

Qualified  disposal  cell  development  costs  such  as  personnel  and  equipment  costs  incurred  to  construct  new  disposal  cells  are
recorded and capitalized at cost. Capitalized cell development costs, net of recorded amortization, are added to estimated future
costs  of  the  permitted  disposal  cell  to  be  incurred  over  the  remaining  construction  of  the  cell,  to  determine  the  amount  to  be
amortized over the remaining estimated cell life. Estimates of future costs are developed using input from independent engineers
and internal technical and accounting managers. We review these estimates at least annually. Amortization is recorded on a unit
of consumption basis, typically applying cost as a rate per cubic yard disposed. Disposal facility costs are expected to be fully
amortized upon final closure of the facility, as no salvage value applies. Costs associated with ongoing disposal operations are
charged to expense as incurred.

We  have  material  financial  commitments  for  closure  and  post-closure  obligations  for  certain  facilities  we  own  or  operate.  We
estimate future cost requirements for closure and post-closure monitoring based on RCRA and conforming state requirements and
facility  permits.  RCRA  requires  that  companies  provide  the  responsible  regulatory  agency  acceptable  financial  assurance  for
closure work and subsequent post-closure monitoring of each facility for 30 years following closure. Estimates for final closure
and post-closure costs are developed using input from our technical and accounting managers as well as independent engineers
and are reviewed by management  at least annually. These estimates involve projections of costs that will be incurred after the
disposal facility ceases operations, through the required post-closure care period. The present value of the estimated closure and
post-closure costs are accreted using the interest method of allocation to direct costs in our consolidated statements of operations
so that 100% of the future cost has been incurred at the time of payment.

Business Combinations

We account for business combinations under the acquisition method of accounting. The cost of an acquired company is assigned
to the tangible and identifiable intangible assets purchased and the liabilities assumed on the basis of their fair values at the date
of  acquisition.  Any  excess  of  purchase  price  over  the  fair  value  of  net  tangible  and  intangible  assets  acquired  is  assigned  to
goodwill. The transaction costs associated with business combinations are expensed as they are incurred.

Goodwill

Goodwill represents the excess of the fair value of the consideration transferred over the fair value of the underlying identifiable
assets and liabilities acquired. Goodwill is not amortized, but instead is assessed for impairment annually in the fourth quarter as
of October 1 and also if an event occurs or circumstances change that may indicate a possible impairment. In the event that we
determine  that  the  value  of  goodwill  has  become  impaired,  we  will  incur  an  accounting  charge  for  the  amount  of  impairment
during the period in which the determination has been made. See Note 3 for additional information related to the use of estimates
in the Company’s goodwill impairment tests and Note 13 for additional information related to our annual assessment of goodwill.

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Intangible Assets

Intangible assets are stated at the fair value assigned in a business combination net of amortization. We amortize our amortizing
intangible  assets  using  the  straight-line  method  over  their  estimated  economic  lives  ranging  from  1  to  60  years.  We  review
intangible  assets  with  indefinite  useful  lives  for  impairment  during  the  fourth  quarter  as  of  October  1  of  each  year.  We  also
review  both  non-amortizing  and  amortizing  intangible  assets  for  impairment  whenever  events  or  changes  in  circumstances
indicate that the carrying value of an intangible asset may not be recoverable. See Note 3 for additional information related to the
use of estimates in the Company’s intangible assets impairment tests and Note 13 for additional information related to our annual
assessment of non-amortizing intangible assets.

Our  acquired  permits  and  licenses  generally  have  renewal  terms  of  approximately  5-10  years.  We  have  a  history  of  renewing
these permits and licenses as demonstrated by the fact that each of the sites’ treatment permits and licenses have been renewed
regularly  since  the  facility  began  operations.  We  intend  to  continue  to  renew  our  permits  and  licenses  as  they  come  up  for
renewal for the foreseeable future. Costs incurred to renew or extend the term of our permits and licenses are recorded in Selling,
general and administrative expenses in our consolidated statements of operations.

Impairment of Long-Lived Assets

Long-lived assets consist primarily of property and equipment facility development costs and amortizing intangible assets. The
recoverability  of  long-lived  assets  is  evaluated  periodically  through  analysis  of  operating  results  and  consideration  of  other
significant events or changes in the business environment. If an operating unit had indications of possible impairment, we would
evaluate whether impairment exists on the basis of undiscounted expected future cash flows from operations over the remaining
amortization period. If an impairment loss were to exist, the carrying amount of the related long-lived assets would be reduced to
their estimated fair value.

Debt Issuance Costs & Debt Discount

Debt issuance costs and debt discount are amortized over the scheduled maturity of the underlying debt instrument. Amortization
of  debt  issuance  costs  and  debt  discount  is  included  as  a  component  of  interest  expense  in  the  consolidated  statements  of
operations. Unamortized debt discount and debt issuance costs associated with our term loan were $6.7 million and $7.8 million
at December 31, 2020 and 2019, respectively, and have been recorded as a reduction of the Current portion of long-term debt and
Long-term  debt  in  the  consolidated  balance  sheets.  Unamortized  debt  issuance  costs  associated  with  our  Revolving  Credit
Facility  were  $5.3  million  and  $4.7  million  at  December  31,  2020  and  2019,  respectively,  and  have  been  recorded  in  Prepaid
expenses and other current assets and Other assets in the consolidated balance sheets.

Derivative Instruments

In order to manage interest rate exposure, we entered into an interest rate swap agreement in March 2020 that effectively converts
a portion of our variable-rate  debt to a fixed interest rate. Changes in the fair value of the interest rate swap are recorded as a
component of accumulated other comprehensive income within stockholders’ equity, and are recognized in interest expense in
the period in which the payment is settled. The interest rate swap has an effective date of March 31, 2020 in an initial notional
amount  of  $500.0  million.  The  Company  does  not  hold  or  issue  derivative  financial  instruments  for  trading  or  speculative
purposes.

Foreign Currency

The assets, liabilities and results of operations of certain of our foreign subsidiaries are measured using their functional currency
which is the currency of the primary foreign economic environment in which they operate. Assets and liabilities are translated to
U.S. dollars (“USD”) at the exchange rate in effect at the balance sheet date and revenue and expenses at the average exchange
rate for the period. Gains and losses from the translation of the consolidated financial statements of our foreign subsidiaries into
USD  are  included  in  stockholders’  equity  as  a  component  of  Accumulated  other  comprehensive  income.  Gains  and  losses
resulting from foreign currency transactions are recognized in the consolidated statements of operations. Recorded balances that
are denominated in a currency other than the functional currency are

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re-measured to the functional currency using the exchange rate at the balance sheet date and gains or losses are recorded in the
statements of operations.

Income Taxes

We account for income taxes using an asset and liability method, which requires the recognition of taxes payable or refundable
for the current year and deferred tax assets and liabilities for the expected future tax consequences of temporary differences that
currently exist between the tax basis and the financial reporting basis of our taxable subsidiaries’ assets and liabilities using the
enacted tax rates in effect for the year in which the differences  are expected to reverse. The effect of a change in tax rates on
deferred tax assets and liabilities is recognized in operations in the period that includes the enactment date. The measurement of
deferred tax assets is reduced, if necessary, by the amount of any tax benefits that, based on available evidence, are not expected
to be realized.  The unrecognized  tax benefits  that  are  not expected  to result in payment  or receipt  of cash within one year  are
classified as “Other long-term liabilities” in the Consolidated Balance Sheets.  

We regularly assess the need for a valuation allowance against our deferred tax assets. In making that assessment, we consider
both positive and negative evidence related to the likelihood of realization of the deferred tax assets on a jurisdictional basis to
determine, based on the weight of available evidence, whether it is more-likely-than-not that some or all of the deferred tax assets
will  not  be  realized.  Examples  of  positive  and  negative  evidence  include  future  growth,  forecasted  earnings,  future  taxable
income,  the  mix  of  earnings  in  the  jurisdictions  in  which  we  operate,  historical  earnings,  taxable  income  in  prior  years,  if
carryback is permitted under the law and prudent, and feasible tax planning strategies. In the event we were to determine that we
would  not  be  able  to  realize  all  or  part  of  our  net  deferred  tax  assets  in  the  future,  an  adjustment  to  the  deferred  tax  assets
valuation allowance would be charged to earnings in the period in which we make such a determination, or goodwill would be
adjusted at our final determination of the valuation allowance related to an acquisition within the measurement period. If we later
determine  that  it  is  more-likely-than-not  that  the  net  deferred  tax  assets  would  be  realized,  we  would  reverse  the  applicable
portion of the previously-provided valuation allowance as an adjustment to earnings at such time.

We  account  for  unrecognized  tax  benefits  using  a  more-likely-than-not  threshold  for  financial  statement  recognition  and
measurement  of  tax  positions  taken  or  expected  to  be  taken  in  a  tax  return.  We  establish  reserves  for  tax-related  uncertainties
based on estimates of whether, and the extent to which, additional taxes will be due. We record an income tax liability, if any, for
the difference between the benefit recognized and measured and the tax position taken or expected to be taken on our tax returns.
We recognize interest assessed by taxing authorities or interest associated with uncertain tax positions as a component of interest
expense.  We  recognize  any  penalties  assessed  by  taxing  authorities  or  penalties  associated  with  uncertain  tax  positions  as  a
component of selling, general and administrative expenses.

Our  income  tax  expense,  deferred  tax  assets  and  deferred  tax  liabilities,  and  liabilities  for  uncertain  tax  benefits  reflect
management’s  best  estimate  of  current  and  future  taxes  to  be  paid.  We  are  subject  to  income  taxes  in  the  United  States  and
numerous foreign jurisdictions. Significant judgments and estimates are required in the determination of the consolidated income
tax expense. See Note 17 for additional information regarding income taxes.

Insurance

Accrued  costs  for  our  self-insured  healthcare  coverage  were  $3.3  million  and  $1.0  million  at  December  31,  2020  and  2019,
respectively.

Earnings Per Share

Basic  earnings  per  share  is  calculated  based  on  the  weighted-average  number  of  outstanding  common  shares  during  the
applicable period. Diluted earnings per share is based on the weighted-average number of outstanding common shares plus the
weighted-average  number  of  potential  outstanding  common  shares.  Potential  common  shares  that  would  increase  earnings  per
share or decrease loss per share are anti-dilutive and are excluded from earnings per share computations. Earnings per share is
computed separately for each period presented.

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Treasury Stock

Shares of common stock repurchased by us are recorded at cost as treasury stock and result in a reduction of stockholders’ equity
in our consolidated balance sheets. Treasury shares are reissued using the weighted average cost method for determining the cost
of the shares reissued. The difference between the cost of the shares reissued and the issuance price is added or deducted from
additional paid-in capital.

Recently Issued Accounting Pronouncements

In December 2019, the FASB issued ASU No. 2019-12, “Income Taxes” (Topic 740): Simplifying the Accounting for Income
Taxes  (“ASU  2019-12”),  which  is  intended  to  simplify  various  aspects  related  to  accounting  for  income  taxes.  ASU  2019-12
removes  certain  exceptions  to  the  general  principles  in  Topic  740  and  also  clarifies  and  amends  existing  guidance  to  improve
consistent application. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after
December 15, 2020, with early adoption permitted. The Company does not expect ASU 2019-12 to have a material effect on its
financial statements upon adoption.

In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments - Credit Losses” (Topic 326), which is effective for
reporting  periods  beginning  after  December  15,  2019.  The  standard  replaces  the  incurred  loss  impairment  methodology  under
current GAAP with a methodology that reflects expected credit losses and requires the use of a forward-looking expected credit
loss  model  for  accounts  receivables,  loans,  and  other  financial  instruments.  The  standard  requires  a  modified  retrospective
approach through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the
guidance  is  effective.  The  Company  adopted  the  new  credit  loss  standard  effective  January  1,  2020  and  the  impact  of  the
adoption was not material to the Company's consolidated financial statements as credit losses are not expected to be significant
based on historical collection trends, the financial condition of payment partners, and external market factors. The Company will
continue to actively monitor the impact of the recent COVID-19 pandemic on expected credit losses.

NOTE 3. USE OF ESTIMATES

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires
management  to make estimates and assumptions that affect the reported amounts of assets and liabilities  and the disclosure of
contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenue and expenses
during the reporting period. Listed below are the estimates and assumptions that we consider to be significant in the preparation
of our consolidated financial statements.

●

●

●

●

Allowance for Credit Losses - We estimate losses for uncollectible accounts based on the aging of the accounts receivable
and an evaluation of the likelihood of success in collecting the receivable.

Recovery of Long-Lived Assets - We evaluate the recovery of our long-lived assets periodically by analyzing our operating
results and considering significant events or changes in the business environment.

Income Taxes - We assume the deductibility of certain costs in our income tax filings, and estimate our income tax rate and
future recovery of deferred tax assets.

Legal and Environmental Accruals - We estimate the amount of potential exposure we may have with respect to litigation
and environmental claims and assessments.

● Disposal Cell Development and Final Closure/Post-Closure Amortization - We expense amounts for disposal cell usage and
closure and post-closure costs for each cubic yard of waste disposed of at our operating facilities. In determining the amount
to expense for each cubic yard of waste disposed, we estimate the cost to develop each disposal cell and the closure and post-
closure costs for each disposal cell and facility. The expense for each cubic yard is then calculated based on the remaining
permitted capacity and total permitted capacity. Estimates for closure and post-closure costs are developed using input from
third-party engineering consultants, and our internal technical and

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accounting  personnel.  Management  reviews  estimates  at  least  annually.  Estimates  for  final  disposal  cell  closure  and  post-
closure costs consider when the costs would actually be paid and, where appropriate, inflation and discount rates.

●

Business Acquisitions - The Company records assets and liabilities of the acquired business at their fair values. Acquisition-
related  transaction  and restructuring  costs are  expensed  rather  than treated  as part  of the cost of the  acquisition.  Goodwill
represents the excess of the cost of an acquired business over the fair value of the identifiable tangible and intangible assets
acquired and liabilities assumed in a business acquisition.

● Contingent  Consideration  –  The  Company  records  liabilities  for  the  estimated  fair  value  of  potential  future  payments  the
Company  may  be  required  to  remit  under  the  terms  of  historical  purchase  agreements,  entered  into  by  NRC,  prior  to  the
NRC Merger. The payments are contingent on the acquired business’ achievement of annual earnings targets in certain years
and other events considered in the purchase agreement.

● Goodwill - We assess goodwill for impairment during the fourth quarter as of October 1 of each year or sooner if an event
occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying
amount. The assessment consists of comparing the estimated fair value of the reporting unit to the carrying value of the net
assets  assigned  to  the  reporting  unit,  including  goodwill.  Fair  values  are  generally  determined  by  using  both  the  market
approach,  applying  a  multiple  of  earnings  based  on  guideline  for  publicly  traded  companies,  and  the  income  approach,
discounting projected future cash flows based on our expectations of the current and future operating environment. The rates
used to discount projected future cash flows reflect a weighted average cost of capital based on our industry, capital structure
and  risk  premiums  including  those  reflected  in  the  current  market  capitalization.  Estimating  future  cash  flows  requires
significant judgment about factors such as general economic conditions and projected growth rates, and our estimates often
vary from the cash flows eventually realized.  Failure to execute on planned growth initiatives  within the related  reporting
units, coupled with the other factors mentioned above, could lead to the impairment of goodwill and other long-lived assets
in future periods.

●

Intangible Assets - We review intangible  assets with indefinite  useful  lives for impairment  during the fourth  quarter  as of
October 1 of each year. Fair value is generally determined by considering a discounted projected cash flow analysis. If the
fair value of an asset is determined to be less than the carrying amount of the intangible asset, an impairment in the amount
of the difference is recorded in the period in which the annual assessment occurs.

We also review amortizing intangible assets for impairment whenever events or changes in circumstances indicate that the
carrying value of an intangible asset may not be recoverable. In order to assess whether a potential impairment exists, the
assets’  carrying  values  are  compared  with  their  undiscounted  expected  future  cash  flows.  Estimating  future  cash  flows
requires  significant  judgment  about  factors  such  as  general  economic  conditions  and  projected  growth  rates,  and  our
estimates often vary from the cash flows eventually realized. Impairments are measured by comparing the fair value of the
asset to its carrying value. Fair value is generally determined by considering: (i) the discounted projected cash flow analysis;
(ii) a third-party valuation; and/or (iii) information available regarding the current market environment for similar assets. If
the fair value is determined to be less than the carrying amount of the intangible assets, an impairment in the amount of the
difference is recorded in the period in which the events or changes in circumstances that indicated the carrying value of the
intangible assets may not be recoverable occurred.

Actual  results  could  differ  materially  from  the  estimates  and  assumptions  that  we  use  in  the  preparation  of  our  consolidated
financial statements. As it relates to estimates and assumptions in amortization rates and environmental obligations, significant
engineering,  operations  and  accounting  judgments  are  required.  We  review  these  estimates  and  assumptions  no  less  than
annually. In many circumstances, the ultimate outcome of these estimates and assumptions will not be known for decades into the
future.  Actual  results  could  differ  materially  from  these  estimates  and  assumptions  due  to  changes  in  applicable  regulations,
changes in future operational plans and inherent imprecision associated with estimating environmental impacts far into the future.

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NOTE 4. REVENUES

Disaggregation of Revenue

Effective in the fourth quarter of 2020, we have made changes to the manner in which we manage our business, make operating
decisions and assess our performance. Throughout this Annual Report on Form 10-K, all periods presented have been recast to
reflect  these  changes.  Our  operations  are  managed  in  three  reportable  segments,  Waste  Solutions,  Field  Services  and  Energy
Waste, reflecting our internal reporting structure and nature of services offered. See Note 21 for additional information on our
operating segments.

The following table presents our revenue disaggregated by our reportable segments and service lines:

$s in thousands

Treatment & Disposal Revenue (1)
Services Revenue:

Transportation and Logistics (2)
Industrial Services (3)
Small Quantity Generation (4)
Total Waste Management (5)
Remediation (6)
Emergency Response (7)
Domestic Standby Services (8)
Other (9)

Revenue

$s in thousands

Treatment & Disposal Revenue (1)
Services Revenue:

Transportation and Logistics (2)
Industrial Services (3)
Small Quantity Generation (4)
Total Waste Management (5)
Remediation (6)
Emergency Response (7)
Domestic Standby Services (8)
Other (9)

Revenue

2020

Waste

Field

     Solutions      Services

$ 354,055

$

47,781

Energy
Waste
$ 18,884

71,358
—
—
—
—
—
—
—
$ 425,413

34,218
118,584
48,049
35,401
30,225
107,508
32,745
19,243
$ 473,754

7,184
4,178
—
—
—
—
—
4,441
$ 34,687

2019

Waste

Field

     Solutions      Services

Energy
Waste

$ 359,847

$

18,523

$

6,039

80,700
—
—
—
—
—
—
—
$ 440,547

40,670
38,861
37,471
33,794
13,307
26,839
14,249
8,688
$ 232,402

2,877
1,200
—
—
—
—
—
2,444
$ 12,560

Total
$ 420,720

112,760
122,762
48,049
35,401
30,225
107,508
32,745
23,684
$ 933,854

Total
$ 384,409

124,247
40,061
37,471
33,794
13,307
26,839
14,249
11,132
$ 685,509

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$s in thousands

Treatment & Disposal Revenue (1)
Services Revenue:

Transportation and Logistics (2)
Industrial Services (3)
Small Quantity Generation (4)
Total Waste Management (5)
Remediation (6)
Emergency Response (7)
Other (9)

Revenue

2018

Waste

Field

     Solutions      Services

Energy
Waste

Total

$ 320,045

$

11,736

$

— $ 331,781

80,633
—
—
—
—
—
—
$ 400,678

33,037
24,155
34,571
41,729
10,139
7,513
2,370
$ 165,250

$

113,670
—
24,155
—
34,571
—
41,729
—
10,139
—
7,513
—
2,370
—
— $ 565,928

(4)

(2)
(3)

(1) We categorize our treatment and disposal revenue as either “Base Business” or “Event Business” based on the underlying
nature of the revenue source. We define Event Business as non-recurring projects that are expected to equal or exceed 1,000
tons,  with  Base  Business  defined  as  all  other  business  not  meeting  the  definition  of  Event  Business.  For  the  years  ended
December  31,  2020,  2019  and  2018,  27%, 22% and  20%,  respectively,  of  our  treatment  and  disposal  revenue,  excluding
NRC, was derived from Event Business projects. Base Business revenue accounted for 73%, 78% and 80% of our treatment
and disposal revenue, excluding NRC, for the years ended December 31, 2020, 2019 and 2018, respectively.
Includes collection and transportation of non-hazardous and hazardous waste.
Includes industrial cleaning and maintenance for refineries, chemical plants, steel and automotive plants, marine terminals
and refinery services such as tank cleaning and temporary storage.
Includes  retail  services,  laboratory  packing,  less-then-truck-load  service  and  household  hazardous  waste  collection.
Contracts for Small Quantity Generation may extend beyond one year and a portion of the transaction price can be fixed.
(5) Through our TWM program, customers outsource the management of their waste compliance program to us, allowing us to
organize  and  coordinate  their  waste  management  disposal  activities  and  environmental  compliance.  TWM  contracts  may
extend beyond one year and a portion of the transaction price can be fixed.
Includes  site  assessment,  onsite  treatment,  project  management  and remedial  action  planning  and execution.  Contracts  for
Remediation may extend beyond one year and a portion of the transaction price can be fixed.
Includes spill response, waste analysis and treatment and disposal planning.

(7)
(8) We  provide  government-mandated,  commercial  standby  oil  spill  compliance  solutions  to  companies  that  store,  transport,
produce  or  handle  petroleum  and  certain  nonpetroleum  oils  on  or  near  U.S.  waters.  Our  standby  services  customers  pay
annual retainer fees under long-term or evergreen contracts for access to our regulatory certifications, specialized assets and
highly trained personnel. When a customer with a retainer contract experiences a spill incident, we coordinate and manage
the spill response, which results in incremental revenue for the services provided, in addition to the retainer fees.
Includes equipment rental and other miscellaneous services.

(9)

(6)

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We  provide  services  primarily  in  the  United  States,  Canada  and  the  EMEA  region.  The  following  table  presents  our  revenue
disaggregated by our reportable segments and geographic location where the underlying services were performed:

$s in thousands

United States
Canada
EMEA
Other (1)
Total revenue

$s in thousands

United States
Canada
EMEA
Other (1)
Total revenue

$s in thousands

United States
Canada
Total revenue

Waste

Field

Energy

     Solutions      Services Waste     

2020

$ 355,226
70,187
—
—
$ 425,413

$ 445,405 34,687

3,064
19,947
5,338

—  
—
—
$ 473,754 34,687

Total
$ 835,318
73,251
19,947
5,338
$ 933,854

Waste

Field

Energy

     Solutions      Services Waste     

2019

$ 354,625
85,922
—
—
$ 440,547

$ 221,942 12,560

2,577
5,079
2,804

—  
—
—
$ 232,402 12,560

Total
$ 589,127
88,499
5,079
2,804
$ 685,509

2018

Waste

Field

Energy

     Solutions      Services Waste     

Total

$ 329,918
70,760
$ 400,678

$ 165,250
—
$ 165,250

— $ 495,168
70,760
—  
— $ 565,928

(1)

Includes Mexico, Asia Pacific, and Latin America and Caribbean geographical regions.

Principal versus Agent Considerations

The  Company  commonly  contracts  with  third-parties  to  perform  certain  waste-related  services  that  we  have  promised  in  our
customer contracts. We consider ourselves the principal in these arrangements as we direct the timing, nature and pricing of the
services ultimately provided by the third-party to the customer.

Costs to Obtain a Contract

The Company pays sales commissions to employees, which qualify as costs to obtain a contract. Sales commissions are expensed
as  incurred  as  the  commissions  are  earned  by  the  employee  and  paid  by  the  Company  over  time  as  the  related  revenue  is
recognized. Other commissions and incremental costs to obtain a contract are not material.

Practical Expedients and Optional Exemptions

Our  payment  terms  may  vary  based  on  type  of  service  or  customer;  however,  we  do  not  adjust  the  promised  amount  of
consideration in our contracts for the time value of money as payment terms extended to our customers do not exceed one year
and are not considered a significant financing component in our contracts.

We do not disclose the value of unsatisfied performance obligations as contracts with an original expected length of more than
one year and contracts for which we do not recognize revenue at the amount to which we have the right to invoice for services
performed is insignificant and the aggregate amount of fixed consideration allocated to unsatisfied performance obligations is not
material.

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NOTE 5. BUSINESS COMBINATIONS

NRC Group Holdings Corp.

On November 1, 2019, the Company completed its merger with NRC, a provider of comprehensive environmental, compliance
and waste management  services to the marine  and rail transportation,  general  industrial and energy industries.  The addition of
NRC’s substantial service network strengthens and expands US Ecology’s suite of environmental services, including new oil and
gas exploration and production landfill disposal capabilities, and provides expanded opportunities to establish US Ecology as a
leader in standby and emergency response services.

The total merger consideration was $1,024.8 million, comprised of the following:

$s in thousands
Fair value of US Ecology common stock issued (1)
Fair value of replacement warrants issued (2)
Fair value of replacement restricted stock units issued (3)
Fair value of replacement stock options (4)
Repayment of NRC’s term loan and revolving credit facility

Total merger consideration

$

November 1,
2019
581,101
44,858
141
360
398,373
$ 1,024,833

(1) The fair value of US Ecology common stock issued was calculated based on 9,337,949 shares of US Ecology common stock
multiplied by the closing price of US Ecology common stock of $62.23 per share on October 31, 2019, the day immediately
preceding the closing of the NRC Merger.

(2) The fair value of replacement warrants issued was calculated based on 3,772,753 replacement warrants multiplied by the fair
value  per  warrant  of  $11.89.    The  fair  value  per  warrant  was  based  on  the  closing  price  of  the  replaced  NRC  warrants
(NYSE: NRCG.WS) of $2.33 on October 31, 2019, the day immediately preceding the closing of the NRC Merger, divided
by the exchange ratio of 0.196 pursuant to the NRC Merger Agreement.

(3) The fair value of replacement restricted stock units issued was calculated based on 118,239 replacement restricted stock units
multiplied by the closing price of US Ecology common stock of $62.23 per share on October 31, 2019, the day immediately
preceding  the  closing  of  the  NRC  Merger,  further  multiplied  by  the  ratio  of  the  precombination  service  period  to  the
remaining vesting period, or approximately 1.9%.

(4) The fair value of replacement stock options issued was calculated based on 29,400 replacement stock options multiplied by
the fair value per option of $12.26. The fair value per option was calculated using the Black-Scholes option pricing model,
with  the  following  weighted-average  assumptions:  strike  price  of  $52.30 per  option,  dividend  yield  of  1.2%;  expected
volatility of 28.9%; average risk-free interest rate of 1.5%; and an expected term of 1 year. The replacement stock options
became fully vested at the merger date therefore the entire fair value is considered merger consideration.

The payment of transaction fees and expenses and repayment of $398.4 million of NRC’s debt were funded using proceeds from
a new $450.0 million seven-year term loan. See Note 16 for additional information on the Company’s debt.

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As of October 31, 2020, the Company finalized the purchase accounting for NRC Merger. The following table summarizes the
consideration paid for NRC and the fair value estimates of assets acquired and liabilities assumed, recognized at the acquisition
date,  with  purchase  price  allocation  adjustments  since  the  preliminary  purchase  price  allocation  as  previously  disclosed  as  of
December 31, 2019:

$s in thousands
Current assets
Property and equipment
Identifiable intangible assets
Other assets
Current liabilities
Deferred income tax liabilities
Other liabilities
Total identifiable net assets

Goodwill

Total purchase price

As Reported in 2019
Form 10-K

$

$

131,653
197,045
303,600
41,687
(83,460)
(56,596)
(57,581)
476,348
548,485
1,024,833

$

    Adjustments    
(1,543) $
(26,837)
5,900
—
(6,273)
1,622
(1,782)
(28,913)
28,913

$

— $

As Retrospectively
Adjusted

130,110
170,208
309,500
41,687
(89,733)
(54,974)
(59,363)
447,435
577,398
1,024,833

Purchase  price  allocation  adjustments  related  primarily  to  the  receipt  of  additional  information  regarding  the  fair  values  of
property and equipment, intangible assets, accrued liabilities, deferred income taxes and residual goodwill.

Goodwill  of  $577.4  million  arising  from  the  acquisition  is  primarily  attributable  to  the  assembled  workforce  of  NRC  and
expected  synergies  from  combining  operations.  $399.5  million  of  the  goodwill  recognized  was  allocated  to  our  Energy  Waste
segment and $177.9 million of the goodwill recognized was allocated to our Field Services segment. We expect $33.3 million of
the acquired goodwill to be deductible for income tax purposes.

The fair value of identifiable intangible assets related to the acquisition of NRC by major intangible asset class and corresponding
weighted average amortization period are as follows:

$s in thousands
Amortizing intangible assets:

Customer relationships - noncontractual
Customer relationships - contractual
Permits and licenses
Tradenames
Non-compete agreements

Total identified amortizing intangible assets
Non-amortizing intangible assets:

Permits and licenses

Total identified intangible assets

106

Average
Amortization
     Fair Value     Period (Years)

$ 199,600
34,400
8,700
6,100
3,300
252,100

57,400
$ 309,500

14
7
16
2
2

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The  following  unaudited  pro  forma  financial  information  presents  the  combined  results  of  operations  as  if  NRC  had  been
combined  with  US  Ecology  as  of  January  1,  2018.  The  pro  forma  financial  information  includes  the  accounting  effects  of  the
business combination, including the amortization of intangible assets, depreciation of property, plant and equipment, and interest
expense. The unaudited pro forma financial information is presented for informational purposes only and is not indicative of the
results of operations that would have been achieved if the acquisition had taken place at the beginning of the periods presented,
nor should it be taken as indication of our future consolidated results of operations.

$s in thousands
Pro forma combined:

Revenue
Net income (loss)

(unaudited)

2019

2018

$ 1,048,745
11,775
$

$ 923,947
$ (12,296)

The amounts of revenue and operating loss from NRC included in the Company’s consolidated statements of operations for the
year ended December 31, 2020 was $318.7 million and $417.4 million, respectively. The amounts of revenue and operating loss
from NRC included in the Company’s consolidated statements of operations for the year ended December 31, 2019 was $70.2
million and $9.1 million, respectively. NRC Merger-related business development and integration expenses of $11.5 million and
$24.4  million  are  included  in  Selling,  general  and  administrative  expenses  in  the  Company’s  consolidated  statements  of
operations for the year ended December 31, 2020 and 2019, respectively.

Acquisition of Impact Environmental Services, Inc.

On  January  28,  2020,  we  acquired  Impact  Environmental  Services,  Inc.,  an  industrial  cleaning  and  environmental  services
company  based  in  Romulus,  Michigan  for  $3.3  million.  The  acquired  operations  are  reported  as  part  of  our  Field  Services
segment, however, revenues, net income, earnings per share and total assets are not material to our consolidated financial position
or results of operations.

We allocated the purchase price to the assets acquired and liabilities assumed based on estimates of the fair value at the date of
the  acquisition,  resulting  in  $300,000  allocated  to  goodwill  and  $900,000  allocated  to  amortizing  intangible  assets  (primarily
customer relationships) to be amortized over a weighted average life of approximately 12 years. All of the goodwill recognized
was assigned to our Field Services segment and is expected to be deductible for income tax purposes over a 15-year amortization
period.

W.I.S.E. Environmental Solutions Inc.

On  August  1,  2019,  we  acquired  100%  of  the  outstanding  shares  of  W.I.S.E.  Environmental  Solutions  Inc.  (“US  Ecology
Sarnia”), an equipment rental and waste services company based in Sarnia, Ontario, Canada for 23.5 million Canadian dollars,
which  translated  to  $17.9  million  at  the  time  of  transaction  and  was  funded  with  borrowings  under  the  Credit  Agreement.  US
Ecology Sarnia is reported as part of our Field Services segment. The Company assessed the revenues, net income, earnings per
share and total assets of US Ecology Sarnia and concluded they are not material to our consolidated financial position or results
of operations. As such, pro forma financial information has not been provided.

We allocated the purchase price to the assets acquired and liabilities assumed based on estimates of the fair value at the date of
the acquisition, resulting in $7.7 million allocated to goodwill and $6.2 million allocated to intangible assets (primarily customer
relationships) to be amortized over a weighted average life of approximately 14 years.

Goodwill of $7.7 million arising from the acquisition is attributable to the assembled workforce and the future economic benefits
of synergies with our other regional facilities and expansion into new markets. All of the goodwill recognized was assigned to our
Field Services segment and is not expected to be deductible for income tax purposes.

ES&H of Dallas, LLC

On  August  31,  2018,  the  Company  acquired  ES&H  of  Dallas,  LLC  (“ES&H  Dallas”),  which  provides  emergency  and  spill
response, light industrial services and transportation and logistics for waste disposal and recycling from locations in Dallas

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and Midland, Texas. The total purchase price was $21.3 million and was funded with cash on hand. The ES&H Dallas facilities
are reported as part of our Field Services segment. The Company assessed the revenues, net income, earnings per share and total
assets of ES&H Dallas and concluded they are not material to our consolidated financial position or results of operations either
individually  or  when  aggregated  with  other  acquisitions  completed  in  2018.  As  such,  pro  forma  financial  information  has  not
been provided.

We allocated the purchase price to the assets acquired based on estimates of the fair value at the date of acquisition, resulting in
$10.0 million allocated to property and equipment and other current assets, $7.1 million allocated to goodwill and $4.2 million
allocated  to  intangible  assets  (consisting  primarily  of  customer  relationships)  to  be  amortized  over  a  weighted  average  life  of
approximately 13 years. No liabilities were assumed in the acquisition.

Goodwill of $7.1 million arising from the acquisition is attributable to the assembled workforce and the future economic benefits
of synergies with our other Texas facilities and expansion into new markets. All of the goodwill recognized was assigned to our
Field Services segment and is expected to be deductible for income tax purposes over a 15-year amortization period.

Ecoserv Industrial Disposal, LLC

On  November  14,  2018,  the  Company  acquired  Ecoserv  Industrial  Disposal,  LLC  (“Winnie”),  which  provides  non-hazardous
industrial  wastewater  disposal  solutions  and  employs  deep-well  injection  technology  in  the  southern  United  States.  The  total
purchase  price  was  $87.2  million  and  was  funded  with  $87.0  million  in  borrowings  under  the  Credit  Agreement  and  cash  on
hand. Winnie is reported as part of our Waste Solutions segment. The Company assessed the revenues, net income, earnings per
share and total assets of Winnie and concluded they are not material to our consolidated financial position or results of operations
either individually or when aggregated with other acquisitions completed in 2018. As such, pro forma financial information has
not been provided.

As  of  December  31,  2019,  the  Company  finalized  the  purchase  accounting  for  the  acquisition  of  Winnie.  The  following  table
summarizes the final Winnie purchase price allocation:

$s in thousands
Current assets
Property and equipment
Identifiable intangible assets
Current liabilities
Other liabilities
Total identifiable net assets

Goodwill

Total purchase price

Purchase Price

     Allocation

$

$

1,860
3,699
66,500
(755)
(512)
70,792
16,436
87,228

The  fair  value  of  identifiable  intangible  assets  related  to  the  acquisition  of  Winnie  consisted  of  $54.7  million  in  permits  to  be
amortized over a life of 60 years, and $11.8 million in customer relationships to be amortized over a life of 15 years.

Goodwill of $16.4 million arising from the acquisition is attributable to the future economic benefits of expansion into the deep-
well injection market and the assembled workforce. All of the goodwill recognized was assigned to our Waste Solutions segment
and is expected to be deductible for income tax purposes over a 15-year amortization period.

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NOTE 6. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

Changes in accumulated other comprehensive income (loss) (“AOCI”) consisted of the following:

$s in thousands
Balance at December 31, 2018

Other comprehensive income (loss) before reclassifications, net of tax
Amounts reclassified out of AOCI, net of tax (1)

Other comprehensive income (loss), net

Balance at December 31, 2019

Other comprehensive income (loss) before reclassifications, net of tax
Amounts reclassified out of AOCI, net of tax (2)

Other comprehensive income (loss), net

Balance at December 31, 2020

Foreign
Currency

Unrealized Gain
(Loss) on Interest

     Translation      Rate Hedge

$

$

$

(14,697) $
3,772

—  

3,772
(10,925) $
3,055

—  

3,055
(7,870) $

$

906
(1,700)
(135)
(1,835)

(929) $

(8,494)
2,635
(5,859)
(6,788) $

Total
(13,791)
2,072
(135)
1,937
(11,854)
(5,439)
2,635
(2,804)
(14,658)

(1) Before-tax  reclassifications  of  $170,000  ($135,000 after-tax)  for  the  year  ended  December  31,  2019  were  included  as  a
reduction  of  Interest  expense  in  the  Company’s  consolidated  statements  of  operations.  Amount  relates  to  the  Company’s
interest  rate  swap  which  is  designated  as  a  cash  flow  hedge.  Changes  in  fair  value  of  the  swap  recognized  in  AOCI  are
reclassified to interest expense when hedged interest payments on the underlying long-term debt are made.

(2) Before-tax reclassifications of $3.3 million ($2.6 million, after-tax) for the year ended December 31, 2020 were included in
Interest  expense  in  the  Company’s  consolidated  statements  of  operations.  Amount  relates  to  the  Company’s  interest  rate
swap which is designated as a cash flow hedge. Changes in fair value of the swap recognized in AOCI are reclassified to
interest expense when hedged interest payments on the underlying long-term debt are made. Amounts in AOCI expected to
be recognized as interest expense over the next 12 months total approximately $3.6 million ($2.8 million after tax).

NOTE 7. DISCLOSURE OF SUPPLEMENTAL CASH FLOW INFORMATION

$s in thousands
Income taxes and interest paid:

Income taxes paid, net of receipts
Interest paid

Non-cash investing and financing activities:

Fair value of equity issued for acquisition of NRC
Adjustments to closure/post-closure retirement asset
Capital expenditures in accounts payable
Acquisition of equipment with financing arrangements
Restricted stock issuances from treasury shares

$

$

For the Year Ended December 31, 
2018
2019
2020

7,774
28,433

$ 14,777
17,204

$ 19,580
  11,246

— $ 626,460
(221)
2,882
2,481
514

5,422
4,712
6,197
2,491

$

—
99
1,601
747
11

NOTE 8. FAIR VALUE MEASUREMENTS

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction
between market participants at the measurement date. Assets and liabilities recorded at fair value are categorized using defined
hierarchical levels directly related to the amount of subjectivity associated with the inputs to fair value measurements, as follows:

●

Level 1 - Quoted prices in active markets for identical assets or liabilities;

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●

●

Level 2 - Inputs other than quoted prices included within Level 1 that are either directly or indirectly observable;

Level  3  -  Unobservable  inputs  in  which  little  or  no  market  activity  exists,  requiring  an  entity  to  develop  its  own
assumptions that market participants would use to value the asset or liability.

The Company’s financial instruments consist of cash and cash equivalents, accounts receivable, restricted cash and investments,
accounts  payable  and  accrued  liabilities,  debt,  interest  rate  swap  agreements  and  contingent  consideration.  The  estimated  fair
value of cash and cash equivalents, accounts receivable, accounts payable and accrued liabilities approximate their carrying value
due to the short-term nature of these instruments.

On September 19, 2019, the Company invested $7.9 million in the preferred stock of a privately held company which is included
in Other assets  in the Company’s consolidated  balance  sheets.  The investment  does not have a readily  determinable  fair  value
therefore  the  investment  is  valued  at  cost,  less  impairment,  plus  or  minus  observable  price  changes  of  an  identical  or  similar
investment of the same issuer, if any. As of December 31, 2020, there have been no identified events or changes in circumstances
that  would  indicate  the  cost  method  investment  should  be  impaired  nor  have  there  been  any  observable  price  changes  of  an
identical or similar investment of the same issuer.

The  Company  estimates  the  fair  value  of  its  variable-rate  debt  using  Level  2  inputs,  such  as  interest  rates,  related  terms  and
maturities of similar obligations. At December 31, 2020, the fair value of the Company’s variable rate term loan was estimated to
be $446.1 million, and the carrying value of the Company’s variable-rate revolving credit facility approximates fair value due to
the short-term nature of the interest rates.

The Company estimates the fair value of its contingent consideration liabilities using Level 3 inputs, including both observable
and unobservable inputs. As a result, unrealized gains and losses may include changes in fair value that are attributable to both
observable (e.g., changes in market interest rates) and unobservable (e.g., changes in unobservable long-dated volatilities) inputs.

The Company’s assets and liabilities measured at fair value on a recurring basis at December 31, 2020 and 2019 consisted of the
following:

2020

$s in thousands
Assets:

Fixed-income securities (1)
Money market funds (2)

Total

Liabilities:

Interest rate swap agreement (3)
Contingent consideration (4)

Total

Quoted Prices in Other Observable Unobservable
Active Markets
(Level 1)

Inputs
(Level 3)

Inputs
(Level 2)

     Total

2,914
1,319
4,233

$

$

— $
—
— $

1,427
—
1,427

9,744
—
9,744

$

$

$

$

— $ 4,341
1,319
—
— $ 5,660

— $ 9,744
2,173
$ 11,917

2,173
2,173

$

$

$

$

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$s in thousands
Assets:

Fixed-income securities (1)
Money market funds (2)

Total

Liabilities:

Interest rate swap agreement (3)
Contingent consideration (4)

Total

2019

Quoted Prices in Other Observable Unobservable
Active Markets
(Level 1)

Inputs
(Level 3)

Inputs
(Level 2)

     Total

$

$

$

$

2,380
859
3,239

$

$

— $
—
— $

1,830
—
1,830

1,176
—
1,176

$

$

$

$

— $ 4,210
—
859
— $ 5,069

— $ 1,176
8,283
$ 9,459

8,283
8,283

(1) We  invest  a  portion  of  our  Restricted  cash  and  investments  in  fixed-income  securities,  including  U.S.  Treasury  and  U.S.
agency  securities.  We  measure  the  fair  value  of  U.S.  Treasury  securities  using  quoted  prices  for  identical  assets  in  active
markets.  We  measure  the  fair value  of U.S. agency  securities  using observable  market  activity  for similar  assets.  The fair
value of our fixed-income securities approximates our cost basis in the investments.

(2) We  invest  portions  of  our  Cash  and  cash  equivalents  and  Restricted  cash  and  investments  in  money  market  funds.  We
measure the fair value of these money market fund investments using quoted prices for identical assets in active markets.
The  portion  of  Restricted  cash  and  investments  that  is  invested  in  money  market  funds  is  considered  restricted  cash  for
purposes  of  reconciling  the  beginning-of-period  and  end-of-period  amounts  presented  in  the  Company’s  consolidated
statements of cash flows.

(3)

In order to manage interest rate exposure, we entered into an interest rate swap agreement in March 2020 and October 2014
that effectively convert a portion of our variable-rate debt to a fixed interest rate. In connection with our entry into the March
2020 interest rate swap, we terminated the October 2014 interest rate swap prior to its scheduled maturity date of June 2021.
The  March  2020  interest  rate  swap  is  designated  as  a  highly-effective  cash  flow  hedge,  with  gains  and  losses  deferred  in
other  comprehensive  income  to  be  recognized  as  an  adjustment  to  interest  expense  in  the  same  period  that  the  hedged
interest payments affect earnings. The October 2014 interest rate swap was also designated as a highly effective cash flow
hedge. The March 2020 interest rate swap has an effective date of March 31, 2020 in an initial notional amount of $500.0
million.  The  fair  value  of  the  interest  rate  swap  agreement  represents  the  difference  in  the  present  value  of  cash  flows
calculated (i) at the contracted interest rates and (ii) at current market interest rates at the end of the period. We calculate the
fair  value  of  interest  rate  swap  agreements  quarterly  based  on  the  quoted  market  price  for  the  same  or  similar  financial
instruments. The fair value of the interest rate swap agreements are included in Other long-term liabilities in the Company’s
consolidated balance sheets as of December 31, 2020 and 2019, respectively.

(4) Our contingent consideration liabilities represent the estimated fair value of potential future payments the Company may be
required  to  remit  under  the  terms  of  historical  purchase  agreements  entered  into  by  NRC  prior  to  the  NRC  Merger.  The
payments are contingent on the acquired businesses’ achievement of annual earnings targets in certain years and other events
considered in the purchase agreements. The fair value of our contingent consideration liabilities are calculated using either a
Monte  Carlo  simulation  or  modified  Black-Scholes  analyses  based  on  earnings  projections  for  the  respective  earn-out
periods, corresponding earnings thresholds, and approximate timing of payments as outlined in the purchase agreements. The
analyses utilize the following assumptions: (i) expected term; (ii) risk-adjusted net sales or earnings; (iii) risk-free interest
rate;  and  (iv)  expected  volatility  of  earnings.  Estimated  payments,  as  determined  through  the  respective  models,  are
discounted by a credit spread assumption to account for credit risk. At December 31, 2020, the fair value of our contingent
consideration  liabilities  of  $2.2 million  were  included  in  Accrued  liabilities.  At  December  31,  2019,  the  fair  value  of  our
contingent consideration liabilities of $6.6 million and $1.7 million were included in Accrued liabilities and Other long-term
liabilities, respectively. We revalue our contingent consideration payments each period and any increases or decreases to fair
value are included in Selling, general and administrative expenses in our consolidated statements of operations. Fair values
may  be  impacted  by  certain  unobservable  inputs,  most  significantly  with  regard  to  discount  rates,  expected  volatility  and
historical and

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projected  performance.  Significant  changes  to  these  inputs  in  isolation  could  result  in  a  significantly  different  fair  value
measurement.

Changes in Level 3 liabilities measured at fair value for the years ended December 31, 2020 and 2019 are as follows:

$s in thousands
Contingent consideration, beginning of period

Fair value of contingent consideration acquired
Change in fair value of contingent consideration
Contingent consideration paid
Foreign currency translation

Contingent consideration, end of period

NOTE 9. CONCENTRATIONS AND CREDIT RISK

Major Customers

2020

2019

8,283

$
—  

(3,682)
(2,517)
89
2,173

$

—
11,859
349
(4,000)
75
8,283

$

$

No customer accounted for more than 10% of total revenue for the years ended December 31, 2020, 2019 or 2018.

No customer accounted for more than 10% of total receivables as of December 31, 2020 or 2019.

Credit Risk Concentration

We maintain most of our cash and cash equivalents with nationally recognized financial institutions. Substantially all balances
are  uninsured  and  are  not  used  as  collateral  for  other  obligations.  Concentrations  of  credit  risk  on  accounts  receivable  are
believed to be limited due to the number, diversification and character of the obligors and our credit evaluation process. Credit
risk  associated  with  a  portion  of  the  Company’s  trade  receivables  is  reduced  by  our  ability  to  submit  claims  to  the  Oil  Spill
Liability  Trust  Fund  (“OSLTF”)  for  reimbursement  of  unpaid  customer  receivables  related  to  services  regulated  under  the
provisions  of  the  Oil  Pollution  Act  of  1990  (“OPA  90”).  As  of  December  31,  2020,  the  Company  did  not  have  any  trade
receivables that are eligible for submission to the OSLTF for reimbursement.

Labor Concentrations

As of December 31, 2020, approximately 500, or approximately 14%, of our employees were covered by collective bargaining
agreements with various labor unions. Approximately 46% of these employees are covered by collective bargaining agreements
that expired and are in negotiation as of December 31, 2020, or expire within one year of December 31, 2020.

NOTE 10. RECEIVABLES

Receivables as of December 31, 2020 and 2019 consisted of the following:

$s in thousands
Trade
Unbilled revenue
Other
Total receivables

Allowance for credit losses

Receivables, net

2020
$ 186,502
52,858
5,554
  244,914
(2,936)
$ 241,978

2019
$ 196,593
54,727
7,000
  258,320
(3,010)
$ 255,310

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The allowance  for credit  losses is a  provision  for  uncollectible  accounts  receivable  and unbilled  receivables.  The  allowance  is
evaluated and adjusted to reflect our expected credit losses based on collection history and an analysis of the accounts receivables
aging. The allowance is decreased by accounts receivable as they are written off. The allowance is adjusted periodically to reflect
actual experience. The change in the allowance during 2020, 2019 and 2018 was as follows:

$s in thousands
Year ended December 31, 2020
Year ended December 31, 2019
Year ended December 31, 2018

NOTE 11. PROPERTY AND EQUIPMENT

Balance at
Beginning of
Period

Charged
(Credited) to
Costs and
     Expenses

$
$
$

3,010
2,998
2,796

$
$
$

Recoveries
(Deductions/

Balance at

     Write-offs)      Adjustments     End of Period
2,936
3,010
2,998

296
$
(439) $
(213) $

$
42
225
$
(21) $

(412) $
$
226
$
436

Property and equipment as of December 31, 2020 and 2019 consisted of the following:

$s in thousands
Cell development costs
Land and improvements
Buildings and improvements
Railcars
Vehicles, vessels and other equipment
Construction in progress
Total property and equipment

Accumulated depreciation and amortization

Property and equipment, net

2020
$ 186,170
65,953
128,206
17,299
331,167
44,840
773,635
(316,998)
$ 456,637

2019
174,561
52,909
109,580
17,299
317,472
61,537
733,358
(254,590)
478,768

$

$

Depreciation  and  amortization  expense  was  $66.6  million,  $41.4  million  and  $29.2  million  for  the  years  ended  December  31,
2020, 2019 and 2018, respectively.

NOTE 12. LEASES

We lease certain facilities, office space, land and equipment. Our lease payments are primarily fixed, but also include variable
payments that are based on usage of the leased asset. Initial lease terms range from one to 15 years, and may include one or more
options to renew, with renewal terms extending a lease up to 40 years. None of our renewal options are considered reasonably
certain  to  be  exercised.  Provisions  for  residual  value  guarantees  exist  in  some  of  our  equipment  leases,  however  amounts
associated with these provisions are not material. Our leases do not include any material restrictive covenants.

Leases with an initial term of 12 months or less are not recorded on the balance sheet and expense is recognized on a straight-line
basis over the lease term. We combine lease and non-lease components in our leases. We use the rate implicit in the lease, when
available,  to  discount  lease  payments  to  present  value.  However,  many  of  our  leases  do  not  provide  a  readily  determinable
implicit  rate  and  we  estimate  our  incremental  borrowing  rate  to  discount  payments  based  on  information  available  at  lease
commencement.

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Lease assets and liabilities as of December 31, 2020 and 2019 consisted of the following:

$s in thousands
Assets:

Operating right-of-use assets (1)
Finance right-of-use assets (2)

Total

Liabilities:
Current:

Operating (3)
Finance (4)

Long-term:

Operating (5)
Finance (6)

Total

2020

2019

$

$

$

$

51,474
21,209
72,683

17,048
4,462

35,069
17,501
74,080

$

$

$

$

57,396
20,499
77,895

17,317
4,128

39,954
16,308
77,707

(1)
(2)

(3)
(4)
(5)
(6)

Included in Operating lease assets in the Company’s consolidated balance sheets.
Included  in  Property  and  equipment,  net  in  the  Company’s  consolidated  balance  sheets.  Finance  right-of-use  assets  are
recorded net of accumulated amortization of $8.0 million and $2.7 million as of December 31, 2020 and December 31, 2019,
respectively.
Included in Current portion of operating lease liabilities in the Company’s consolidated balance sheets.
Included in Accrued liabilities in the Company’s consolidated balance sheets.
Included in Long-term operating lease liabilities in the Company’s consolidated balance sheets.
Included in Other long-term liabilities in the Company’s consolidated balance sheets.

Lease expense consisted of the following:

$s in thousands
Operating lease cost (1)
Finance lease cost:

Amortization of leased assets (2)
Interest on lease liabilities (3)

Total

Year Ended December 31, 

2020
20,880

5,312
1,221
27,413

$

$

2019

9,144

1,641
332
11,117

$

$

(1)

(2)
(3)

Included  in  Direct  operating  costs  and  Selling,  general,  and  administrative  expenses  in  the  Company’s  consolidated
statements of operations. Operating lease cost includes short-term leases, excluding expenses relating to leases with a term of
one month or less, which are not material. Operating lease cost excludes variable lease costs which are not material.
Included in Direct operating costs in the Company’s consolidated statements of operations.
Included in Interest expense in the Company’s consolidated statements of operations.

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Supplemental cash flow information related to our leases is as follows:

$s in thousands
Cash paid for amounts included in the measurement of lease liabilities:

Operating cash flows from operating leases
Operating cash flows from finance leases
Financing cash flows from finance leases

Non-cash investing and financing activities:

Right-of-use assets obtained in exchange for new operating lease liabilities
Right-of-use assets obtained in exchange for new finance lease liabilities

Other information related to our leases as of December 31, 2020 and 2019 is as follows:

Weighted-average remaining lease term (years):

Operating leases
Finance leases

Weighted-average discount rate:

Operating leases
Finance leases

The Company’s maturity analysis of its lease liabilities as of December 31, 2020 is as follows:

Year Ended December 31, 

2020

2019

$
$
$

$
$

20,297
1,221
4,659

13,576
6,197

$
$
$

$
$

8,656
332
1,298

7,380
2,481

2020

2019

4.1
4.0

3.69 %
5.86 %

4.4
4.5

3.80 %
5.07 %

$s in thousands
2021
2022
2023
2024
2025
Thereafter
Total
Less: Interest
Present value of lease liabilities

Operating
Leases

Finance
Leases

$

$

$

17,819
14,076
10,938
6,877
2,627
4,163
56,500
4,383
52,117

$

$

$

5,944
5,560
5,668
3,929
3,807
1,014
25,922
3,959
21,963

Total
23,763
19,636
16,606
10,806
6,434
5,177
82,422
8,342
74,080

$

$

$

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NOTE 13. GOODWILL AND INTANGIBLE ASSETS

Changes in goodwill for the years ended December 31, 2020 and 2019 were as follows:

$s in thousands
Balance at
December 31, 2018

Preliminary NRC Merger
purchase price allocation
US Ecology Sarnia
acquisition
Winnie purchase price
allocation adjustment
Foreign currency
translation

Balance at
December 31, 2019

Impairment charges
NRC Merger purchase
price allocation adjustment
Impact Environmental
acquisition
Foreign currency
translation

Balance at
December 31, 2020

Waste Solutions

Field Services

Energy Waste

     Gross

     Impairment      Gross

     Impairment      Gross

Accumulated

Accumulated

Accumulated
     Impairment     

Total

$ 162,816

$

(6,870) $

51,231

$

— $

— $

— $

207,177

—

—

2,863

736

—

—

—

—  

239,629

7,668

—

51

—

—

—

—

308,856

—

—

—

—

—

—

—

548,485

7,668

2,863

787

$ 166,415
—

$

(6,870) $ 298,579
—

—

$

— $ 308,856
—

(19,900)

$

— $

(363,900)

766,980
(383,800)

—

—

448

—

—

—  

(61,735)

300

197

—

—

—

90,647

28,912

300

645

$ 166,863

$

(6,870) $ 237,341

$

(19,900) $ 399,503

$ (363,900) $

413,037

We  assess  goodwill  for  impairment  during  the  fourth  quarter  as  of  October  1  of  each  year,  and  also  if  an  event  occurs  or
circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. The
assessment  consists  of  comparing  the  fair  value  of  the  reporting  unit  to  the  carrying  value  of  the  net  assets  assigned  to  the
reporting unit, including goodwill.

Fair values are generally determined by an income approach, discounting projected future cash flows based on our expectations
of the current and future operating environment, using a market approach, applying a multiple of earnings based on guideline for
publicly  traded  companies,  or  a  combination  thereof.  Estimating  future  cash  flows  requires  significant  judgment  about  factors
such  as  general  economic  conditions  and  projected  growth  rates,  and  our  estimates  often  vary  from  the  cash  flows  eventually
realized. The rates used to discount projected future cash flows reflect a weighted average cost of capital based on our industry,
capital structure and risk premiums including those reflected in the current market capitalization. In the event the fair value of a
reporting unit exceeds its carrying amount, goodwill of the reporting unit is considered not impaired. If the carrying amount of a
reporting unit exceeds its fair value, goodwill of the reporting unit is considered impaired, and an impairment charge would be
recognized during the period in which the determination has been made for the amount by which the carrying amount exceeds the
reporting unit’s fair value; however, the loss recognized will not exceed the total amount of goodwill allocated to that reporting
unit.

Assessing  impairment  inherently  involves  management  judgments  as  to  the  assumptions  used  to  calculate  fair  value  of  the
reporting  units  and  the  impact  of  market  conditions  on  those  assumptions.  The  key  inputs  that  management  uses  in  its
assumptions to estimate the fair value of our reporting units under the income-based approach are as follows:

●

Projected  cash  flows  of  the  reporting  unit,  with  consideration  given  to  projected  revenues,  operating  margins  and  the
levels of capital investment required to generate the corresponding revenues; and

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● Weighted average cost of capital (“WACC”), the risk-adjusted rate used to discount the projected cash flows.

To develop the projected cash flows of our reporting units, management considers factors that may impact the revenue streams
within  each  reporting  unit.    These  factors  include,  but  are  not  limited  to,  economic  conditions  on  both  a  global  scale  and
specifically in the regions in which the reporting units operate, customer relationships, strategic plans and opportunities, required
returns  on  invested  capital  and  competition  from  other  service  providers.  With  regard  to  operating  margins,  management
considers  its  historical  reporting  unit  operating  margins  on the  revenue  streams  within  each  reporting  unit,  adjusting  historical
margins for the projected impact of current market trends on both fixed and variable costs.

Expected  future  after-tax  operating  cash  flows  of  each  reporting  unit  are  discounted  to  a  present  value  using  a  risk-adjusted
discount  rate.  Estimates  of  future  cash  flows  require  management  to  make  significant  assumptions  regarding  future  operating
performance including the projected mix of revenue streams within each reporting unit, projected operating margins, the amount
and timing of capital investments and the overall probability of achieving the projected cash flows, as well as future economic
conditions, which may result in actual future cash flows that are different than management’s estimates. The discount rate, which
is intended to reflect the risks inherent in future cash flow projections, used in estimating the present value of future cash flows, is
based on estimates of the WACC of market participants relative to the reporting units. Financial and credit market volatility can
directly impact certain inputs and assumptions used to develop the WACC.

In  connection  with  our  financial  review  and  forecasting  procedures  performed  during  the  first  quarter  of  2020,  management
determined that the projected future cash flows of our EW reporting unit and our International reporting unit (described below)
indicated that the fair value of such reporting units may be below their respective carrying amounts. Accordingly, we performed
an interim assessment of each reporting unit’s fair value as of March 31, 2020 (the “Interim Assessment”). Based on the results of
the  Interim  Assessment,  we  recognized  goodwill  impairment  charges  of  $283.6  million  related  to  our  EW  reporting  unit  and
$16.7  million  related  to  our  International  reporting  unit  in  the  first  quarter  of  2020.  During  the  fourth  quarter  of  2020,  the
Company finalized the purchase price allocation related to the NRC Merger. The finalization of fair value estimates during the
fourth quarter of 2020, and resulting final determination of goodwill by reporting unit, resulted in an increase in the amount of
goodwill assigned to the EW reporting unit and a decrease in the amount of goodwill assigned to the International reporting unit.
 $80.3 million of additional goodwill assigned to the EW reporting unit was immediately impaired in the fourth quarter of 2020
based  on  the  fair  value  of  the  reporting  unit  determined  in  the  Interim  Assessment.  The  decrease  in  goodwill  assigned  to  the
International reporting unit resulted in the reversal in the fourth quarter of 2020 of $11.2 million of International reporting unit
goodwill impairment charges recorded in the first quarter of 2020.

Our EW reporting unit, the sole component of our Energy Waste segment, provides energy-related services including solid and
liquid waste treatment and disposal, equipment cleaning and maintenance, specialty equipment rental, spill containment and site
remediation  for  a  full  complement  of  oil  and  gas  waste  streams,  predominately  to  upstream  energy  customers  currently
concentrated in the Eagle Ford and Permian Basins in Texas. Our International reporting unit, a component of our Field Services
segment, provides industrial and emergency response services to the offshore oil and gas sector in the North Sea and land-based
industries across the EMEA region. Both our EW and International reporting units are dependent on energy-related exploration
and production investments and expenditures by our energy industry customers. Lower crude oil prices and the volatility of such
prices affect the level of investment as it impacts the ability of energy companies to access capital on economically advantageous
terms or at all. In addition, energy companies decrease investments when the projected profits are inadequate or uncertain due to
lower  crude  oil  prices  or  volatility  in  crude  oil  prices.  Such  reductions  in  capital  spending  negatively  impact  energy  waste
generation and therefore the demand for our services. Recent volatility and historically low oil prices have adversely impacted
customers of our EW reporting unit and our International reporting unit, negatively affecting demand for our services.

The principal factors contributing to the goodwill impairment charges for both the EW and International reporting units related to
historically-low  energy  commodity  prices  reducing  anticipated  energy-related  exploration  and  production  investments  and
expenditures by our energy industry customers, which negatively impacted each reporting unit’s prospective cash flows and each
reporting  unit's  estimated  fair  value.  A  longer-than-expected  recovery  in  crude  oil  pricing  and  energy-related  exploration  and
production investments became evident during the first quarter of 2020 as we assessed

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the projected impact of the COVID-19 pandemic and foreign oil production increases on the global demand for oil and updated
the long-term projections for each reporting unit which, as a result, decreased each reporting unit’s anticipated future cash flows
as compared to those estimated previously.

Consistent with our annual impairment testing methodology, we utilized a weighted average of (1) an income approach and (2) a
market approach to determine the fair value of each of the reporting units for the Interim Assessment. The income approach is
based on the estimated present value of future cash flows for each reporting unit. The market approach is based on assumptions
about how market data relates to each reporting unit.

The rapid and sustained decline in the energy markets served by our EW and International  reporting units, exacerbated by the
uncertainty surrounding the impact of the COVID-19 pandemic and foreign oil production increases, has inherently increased the
risk  associated  with  the  future  cash  flows  of  these  reporting  units.  Accordingly,  when  performing  the  Interim  Assessment,  we
increased the discount rates and decreased the projected capital investment for each reporting unit compared to the assumptions
used in the initial fair value assessment in connection with the NRC Merger on November 1, 2019. We believe these changes are
reflective of market participant inputs in consideration of the current economic uncertainty.  

We  also  considered  the  estimated  fair  value  of  our  EW  and  International  reporting  units  under  a  market-based  approach  by
applying  industry-comparable  multiples  of  revenues  and  operating  earnings  to  reporting  unit  revenues  and  operating  earnings.
The  lack  of  a  broad  base  of  publicly  available  market  data  specific  to  the  industry  in  which  we  operate,  combined  with  the
general  market  volatility  attributable  to  the  COVID-19  pandemic,  results  in  a  wide  range  of  currently  observable  market
multiples.  Accordingly,  we  applied  less  weight  to  the  estimated  fair  value  of  our  reporting  units  calculated  under  the  market-
based approach (10%) compared to the income approach (90%) described above.

We  believe  that  the  discount  rates,  projected  cash  flows  and  other  inputs  and  assumptions  used  in  the  Interim  Assessment  are
consistent with those that a market participant would use based on the events described above and are reflective of the current
market assessment of the fair value of our EW and International reporting units. In addition, we believe that our estimates and
assumptions  about  future  revenues  and  margin  projections  in  the  Interim  Assessment  were  reasonable  and  consistent  with  the
current economic uncertainty, both in general and specific to the energy markets served by our EW and International reporting
units.

The result of the annual assessment of goodwill undertaken in the fourth quarter of 2020 indicated that the fair value of each of
our reporting units was in excess of its respective carrying value, with the exception of our Field Services reporting unit.

Our  Field  Services  reporting  unit,  a  component  of  our  Field  Services  segment,  offers  specialty  field  services  and  total  waste
management solutions to commercial and industrial facilities and to government entities through our 10-day transfer facilities and
at customer sites. Consistent with prior assessments, we utilized a weighted average of (1) an income approach and (2) a market
approach to determine the fair value of each of the Field Services reporting unit. The income approach is based on the estimated
present value of future cash flows for the reporting unit. The market approach is based on assumptions about how market data
relates  to  the  reporting  unit.  The  estimated  fair  value  of  the  Field  Services  reporting  unit  was  then  compared  to  the  reporting
unit’s carrying amount as of October 1, 2020. Based on the results of that comparison, the carrying amount of the Field Services
reporting  unit  exceeded  the  estimated  fair  value  of  the  reporting  unit  by  $14.4  million  and,  as  a  result,  we  recognized  a
corresponding goodwill impairment charge in the fourth quarter of 2020. The factors contributing to the $14.4 million goodwill
impairment  charge  principally  related  to  an  increase  in  the  risk-adjusted  rate  used  to  discount  the  projected  cash  flows  of  the
reporting  unit  as  a  result  of  the  decline  in  our  share  price  since  the  last  annual  assessment  as  well  as  a  slower  than  expected
recovery  to  cash  flow  levels  forecasted  prior  to  the  COVID-19  pandemic,  which  negatively  impacted  the  reporting  unit’s
prospective financial information in its discounted cash flow model and the reporting unit’s estimated fair value as compared to
previous estimates.

We  believe  that  the  discount  rates,  projected  cash  flows  and  other  inputs  and  assumptions  used  in  the  annual  assessment  of
goodwill are consistent with those that a market participant would use based on the facts and circumstances described above and
are reflective  of the current  market  assessment of the fair value of our Field Services and EW reporting units. In addition, we
believe that our estimates and assumptions about future revenues and margin projections in the annual

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assessment were reasonable and consistent with the current economic outlook, both in general and specific to the markets served
by our Field Services and EW reporting units.

The result of the annual assessment of goodwill undertaken in the fourth quarter of 2019 indicated that the fair value of each of
our reporting units was in excess of its respective carrying value.

Intangible assets as of December 31, 2020 and 2019 consisted of the following:

$s in thousands
Amortizing intangible assets:
Permits, licenses and lease
Customer relationships
Technology - formulae and processes
Customer backlog
Tradename
Developed software
Non-compete agreements
Internet domain and website
Database
Total amortizing intangible assets

Non-amortizing intangible assets:

Permits and licenses
Tradename

Total intangible assets

2020
Accumulated
    Amortization     

Cost

Net

Cost

2019
Accumulated
    Amortization    

Net

$ 174,885
340,032
7,142
3,652
10,390
2,902
5,571
536
389
  545,499

$

(23,005) $ 151,880
278,254
(61,778)
4,849
(2,293)
1,265
(2,387)
2,375
(8,015)
720
(2,182)
1,253
(4,318)
352
(184)
(214)
175
  441,123
(104,376)

$ 174,339
333,090
6,964
3,652
10,390
2,895
5,455
536
388
  537,709

$

(18,707) $ 155,632
297,836
(35,254)
4,951
(2,013)
1,630
(2,022)
5,558
(4,832)
1,011
(1,884)
3,761
(1,694)
380
(156)
(191)
197
  470,956
(66,753)

82,732
133
$ 628,364

—  
—

82,732
133
$ (104,376) $ 523,988

  103,816
130
$ 641,655

—   103,816
130
—
(66,753) $ 574,902

$

We review non-amortizing intangible assets for impairment during the fourth quarter as of October 1 of each year. Fair value is
generally  determined  by  considering  an  internally  developed  discounted  projected  cash  flow  analysis.  Estimating  future  cash
flows  requires  significant  judgment  about  factors  such  as  general  economic  conditions  and  projected  growth  rates,  and  our
estimates often vary from the cash flows eventually realized. If the fair value of an asset is determined to be less than the carrying
amount  of  the  intangible  asset,  an  impairment  in  the  amount  of  the  difference  is  recorded  in  the  period  in  which  the  annual
assessment occurs.

The results of the annual assessment of non-amortizing intangible assets undertaken in the fourth quarter of 2020 indicated no
impairment  charges  were  required,  with  the  exception  of  certain  non-amortizing  permit  intangibles  within  our  Field  Services
segment.

Our Field Services segment provides government-mandated, commercial standby oil spill compliance solutions to companies that
store,  transport,  produce  or  handle  petroleum  and  certain  nonpetroleum  oils  on  or  near  U.S.  waters.  A  company’s  ability  to
provide these standby services is subject to significant regulatory certification requirements and other high barriers to entry. As
such,  the  Company  assigned  $57.1  million  of  fair  value  to  non-amortizing  standby  services  permit  intangible  assets  upon
finalization of the purchase accounting allocation related to the NRC Merger. In performing the annual indefinite-lived intangible
assets impairment tests, the estimated fair value of the standby services permits was determined under an income approach using
discounted projected future cash flows associated with the permits and then compared to the $57.1 million carrying amount of the
permits as of October 1, 2020. Based on the results of that evaluation, the carrying amount of the permits exceeded the estimated
fair value of the permits and, as a result, we recognized a $21.1 million impairment  charge in the fourth quarter of 2020. The
factors contributing to the impairment charge principally related to a less favorable outlook on the potential for both significant
oil  spill  events  and  growth  opportunities,  which  negatively  impacted  the  discounted  projected  cash  flows  associated  with  the
standby services permits and their estimated fair value as compared to previous estimates.

The results of the annual assessment of non-amortizing intangible assets undertaken in the fourth quarter of 2019 indicated no
impairment charges were required.

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On  November  1,  2019,  the  Company  completed  the  NRC Merger  and  recorded  $577.4  million  of  goodwill,  $252.1 million  of
amortizing  intangible  assets  (consisting  primarily  of  customer  relationships)  and  $57.4  million  of  non-amortizing  intangible
assets (consisting of permits and licenses) as a result of the acquisition. See Note 5 for additional information.

On  August  1,  2019,  the  Company  acquired  US  Ecology  Sarnia  and  recorded  $7.7  million  of  goodwill  and  $6.2  million  of
amortizing  intangible  assets  (consisting  primarily  of  customer  relationships)  as  a  result  of  the  acquisition.  See  Note  5  for
additional information.

Amortization  expense  relating  to  intangible  assets  was  $37.3  million,  $15.5  million  and  $9.6  million  for  the  years  ended
December 31, 2020, 2019 and 2018, respectively.

Foreign intangible asset carrying amounts are affected by foreign currency translation. Future amortization expense of amortizing
intangible assets is expected to be as follows:

Expected

$s in thousands
2021
2022
2023
2024
2025
Thereafter

NOTE 14. EMPLOYEE BENEFIT PLANS

Defined Contribution Plans

$

     Amortization
34,506
31,397
31,210
30,824
30,581
282,605
441,123

$

We maintain the US Ecology, Inc., 401(k) Savings and Retirement Plan (“the Plan”) for employees who voluntarily contribute a
portion  of  their  compensation,  thereby  deferring  income  for  federal  income  tax  purposes.  Participants  may  contribute  a
percentage  of  salary  up  to  the  IRS  limitations.  The  Company  contributes  a  matching  contribution  equal  to  55%  of  participant
contributions up to 6% of eligible compensation. The Company contributed matching contributions to the Plan of $3.3 million,
$3.0 million and $2.5 million in 2020, 2019 and 2018, respectively.

The Company also maintains 401(k) savings and retirement plans (“the NRC Plans”) for the employees that joined the Company
through the NRC Merger. Participants may contribute a percentage of salary up to the IRS limitations. The Company contributes
a matching contribution equal to 55% of participant contributions up to 6% of eligible compensation. The Company contributed
matching contributions to the NRC Plans of $2.3 million and $325,000 in 2020 and 2019, respectively.

We  also  maintain  the  Stablex  Canada  Inc.  Simplified  Pension  Plan  (“the  SPP”).  This  defined  contribution  plan  covers
substantially  all  of  our  employees  at  our  Blainville,  Québec  facility  in  Canada.  Employees  represented  by  the  Unifor  Section
Locale  171  receive  a  Company  contribution  equal  to  9.5%  of  eligible  compensation.  Employees  not  represented  by  the  union
receive a base Company contribution equal to 5% of eligible compensation and an additional matching contribution in an amount
up to 2% of eligible compensation. The Company contributed $735,000, $692,000 and $653,000 to the SPP in 2020, 2019 and
2018, respectively.

Multi-Employer Defined Benefit Pension Plans

Certain of the Company’s wholly-owned subsidiaries participate in a total of six multi-employer  defined benefit pension plans
under  the  terms  of  collective  bargaining  agreements  covering  most  of  the  subsidiaries’  union  employees.  Contributions  are
determined in accordance with the provisions of negotiated labor contracts and are generally based on stipulated rates per hours
worked. Benefits under these plans are generally based on compensation levels and years of service.

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The financial risks of participating in multi-employer plans are different from single employer defined benefit pension plans in
the following respects:

● Assets  contributed  to  the  multi-employer  plan  by  one  employer  may  be  used  to  provide  benefits  to  employees  of  other

participating employers.

●

●

If a participating employer discontinues contributions to a plan, the unfunded obligations of the plan may be borne by the
remaining participating employers.

If  a  participating  employer  chooses  to  stop  participating  in  a  plan,  a  withdrawal  liability  may  be  created  based  on  the
unfunded vested benefits for all employees in the plan.

Information  regarding  significant  multi-employer  pension  benefit  plans  in  which  the  Company  participates  is  shown  in  the
following table:

Name of Plan
Operating Engineers Local 324 Pension Fund

Plan Employer

Plan

     ID Number      Number     

38-1900637

001

Pension
Protection Act
Certified
Zone Status

2020
Red

2019
Red

The Company contributed $1.0 million to the Operating Engineers Local 324 Pension Fund (the “Local 324 Plan”) in both 2020
and 2019. The Company also contributed $205,000 and $281,000 to other multi-employer plans in 2020 and 2019, respectively,
which are excluded from the table above as they are not individually significant.

Based on information as of April 30, 2020 and 2019, the year end of the Local 324 Plan, the Company’s contributions made to
the Local 324 Plan represented less than 5% of total contributions received by the Local 324 Plan during the 2020 and 2019 plan
years.

The certified zone status in the table above is defined by the Department of Labor and the Pension Protection Act of 2006 and
represents the level at which the plan is funded. Plans in the red zone are less than 65% funded; plans in the yellow zone are less
than 80% funded; and plans in the green zone are at least 80% funded. The certified  zone status is as of the Local 324 Plan’s
year-end of April 30, 2020 and 2019.

NOTE 15. CLOSURE AND POST-CLOSURE OBLIGATIONS

Our accrued closure and post-closure liability represents the expected future costs, including corrective actions, associated with
closure and post-closure of our operating and non-operating disposal facilities. We record the fair value of our closure and post-
closure  obligations  as  a  liability  in  the  period  in  which  the  regulatory  obligation  to  retire  a  specific  asset  is  triggered.  For  our
individual  landfill  cells,  the  required  closure  and  post-closure  obligations  under  the  terms  of  our  permits  and  our  intended
operation of the landfill cell are triggered and recorded when the cell is placed into service and waste is initially disposed in the
landfill cell. The fair value is based on the total estimated costs to close the landfill cell and perform post-closure activities once
the landfill cell has reached capacity and is no longer accepting waste. We perform periodic reviews of both non-operating and
operating facilities and revise accruals for estimated closure and post-closure, remediation or other costs as necessary. Recorded
liabilities  are  based  on  our  best  estimates  of  current  costs  and  are  updated  periodically  to  include  the  effects  of  existing
technology, presently enacted laws and regulations, inflation and other economic factors.

We do not presently bear significant financial responsibility for closure and/or post-closure care of the disposal facilities located
on state-owned land at our Beatty, Nevada site, provincial-owned land in Blainville, Québec; or state-leased federal land on the
Department of Energy Hanford Reservation near Richland, Washington. The states of Nevada and Washington and the province
of Québec collect fees from us based on the waste received on a quarterly or annual basis. Such fees are deposited in dedicated,
government-controlled funds to cover the future costs of closure and post-closure care and

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maintenance. Such fees are periodically reviewed for adequacy by the governmental authorities. We maintain a surety bond for
closure costs associated with the Stablex facility. Our lease agreement with the province of Québec requires that the surety bond
be maintained for 25 years after the lease expires. We also maintain surety bonds for closure costs associated with our energy
waste landfills in Texas. Under the terms of our waste disposal permits for these landfills, financial security must be provided to
the Railroad Commission of Texas in an amount necessary to close the facility. At December 31, 2020 we had $12.8 million in
commercial surety bonds dedicated for closure obligations at our operating and non-operating disposal facilities.

In accounting for closure and post-closure obligations, which represent our asset retirement obligations, we recognize a liability
as  part  of  the  fair  value  of  future  asset  retirement  obligations  and  an  associated  asset  as  part  of  the  carrying  amount  of  the
underlying asset. This obligation is valued based on our best estimates of current costs and current estimated closure and post-
closure costs taking into account current technology, material and service costs, laws and regulations. These cost estimates are
increased by an estimated inflation rate, estimated to be 2.6% at December 31, 2020. Inflated current costs are then discounted
using  our  credit-adjusted  risk-free  interest  rate,  which  approximates  our  incremental  borrowing  rate,  in  effect  at  the  time  the
obligation  is  established  or  when  there  are  upward  revisions  to  our  estimated  closure  and  post-closure  costs.  Our  weighted-
average credit-adjusted risk-free interest rate at December 31, 2020 approximated 5.4%.

Changes to reported closure and post-closure obligations for the years ended December 31, 2020 and 2019, were as follows:

$s in thousands
Closure and post-closure obligations, beginning of period

Liabilities assumed in the NRC Merger
NRC Merger purchase price allocation adjustment
Accretion expense
Payments
Adjustments
Foreign currency translation

Closure and post-closure obligations, end of period
Less current portion
Long-term portion

2020

2019

86,383
—
1,782
4,000
(1,750)
5,422
32
95,869
(6,471)
89,398

$

$

78,363
5,691
—
4,388
(1,913)
(221)
75
86,383
(2,152)
84,231

$

$

Adjustment to the obligations represents changes in the expected timing or amount of cash expenditures based upon actual and
estimated cash expenditures. The adjustments in 2020 were primarily attributable to a $5.4 million increase in closure and post-
closure obligations at our Robstown, Texas operating facility due to placing a new landfill cell into service in the fourth quarter
of 2020. The adjustments in 2019 were primarily attributable to a $393,000 decrease in closure and post-closure obligations at
our Robstown, Texas operating facility and a $272,000 decrease in closure and post-closure obligations at our Blainville, Québec,
Canada  operating  facility  due  to  changes  in  closure  timing,  partially  offset  by  a  $422,000  increase  to  the  obligation  for  our
Blainville, Québec, Canada operating facility associated with a newly-constructed disposal cell.

Changes  in  the  reported  closure  and  post-closure  asset,  recorded  as  a  component  of  Property  and  equipment,  net,  in  the
consolidated balance sheets, for the years ended December 31, 2020 and 2019 were as follows:

$s in thousands
Net closure and post-closure asset, beginning of year

Asset acquired in the NRC Merger
NRC Merger purchase price allocation adjustment
Additions or adjustments to closure and post-closure asset
Amortization of closure and post-closure asset
Foreign currency translation

Net closure and post-closure asset, end of year

2020
$ 22,884
—
(389)
5,422
(1,407)
22
$ 26,532

2019
$ 19,510
4,857
—
(221)
(1,298)
36
$ 22,884

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NOTE 16. DEBT

Long-term debt consisted of the following:

$s in thousands
Revolving credit facility
Term loan
Unamortized term loan discount and debt issuance costs
Total debt

Current portion of long-term debt

Long-term debt

December 31, 

2020
$ 347,000
445,500
(6,657)
785,843
(3,359)
$ 782,484

2019
$ 327,000
450,000
(7,799)
769,201
(3,359)
$ 765,842

Future maturities of long-term debt, excluding unamortized discount and debt issuance costs, as of December 31, 2020 consisted
of the following:

$s in thousands
2021
2022
2023
2024
2025
Thereafter

Credit Agreement

$

     Maturities
4,500
4,500
4,500
4,500
351,500
423,000
$ 792,500

On  April  18,  2017,  US  Ecology  Holdings,  Inc.  (f/k/a  US  Ecology,  Inc.)  (“Predecessor  US  Ecology”),  now  a  wholly-owned
subsidiary of the Company, entered into a new senior secured credit agreement (as amended, restated, supplemented or otherwise
modified  through  the  date  hereof,  the  “Credit  Agreement”)  with  Wells  Fargo  Bank,  National  Association  (“Wells  Fargo”),  as
administrative agent for the lenders, swingline lender and issuing lender, and Bank of America, N.A., as an issuing lender, that
provides  for  a  $500.0  million,  five-year  revolving  credit  facility  (the  “Revolving  Credit  Facility”),  including  a  $75.0  million
sublimit for the issuance of standby letters of credit and a $40.0 million sublimit for the issuance of swingline loans used to fund
short-term  working  capital  requirements.  The  Credit  Agreement  also  contains  an  accordion  feature  whereby  Predecessor  US
Ecology  may  request  up  to  $200.0  million  of  additional  funds  through  an  increase  to  the  Revolving  Credit  Facility,  through
incremental  term  loans,  or  some  combination  thereof.  As  described  below,  the  Credit  Agreement  was  amended  in  November
2019 in connection with the NRC Merger and further amended on June 26, 2020 pursuant to the Third Amendment (as defined
below).  In  addition,  as  a  result  of  the  consummation  of  the  NRC Merger,  the  borrower  under  the  Revolving  Credit  Facility  is
Predecessor US Ecology, a wholly-owned subsidiary of the Company. In connection with Predecessor US Ecology’s entry into
the Credit Agreement, Predecessor US Ecology terminated its existing credit agreement with Wells Fargo, dated June 17, 2014
(the “2014 Credit Agreement”). Immediately prior to the termination of the 2014 Credit Agreement, there were $278.3 million of
term loans and no revolving loans outstanding under the 2014 Credit Agreement. No early termination penalties were incurred as
a result of the termination of the 2014 Credit Agreement.

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The Revolving Credit Facility provides up to $500.0 million of revolving credit loans or letters of credit with the use of proceeds
restricted  solely  for  working  capital  and  other  general  corporate  purposes  (including  acquisitions  and  capital  expenditures).
Except as modified by the Third Amendment as described below, under the Revolving Credit Facility, revolving credit loans are
available based on a base rate (as defined in the Credit Agreement) or the London Inter-Bank Offered Rate (“LIBOR”), at the
Company’s  option,  plus  an  applicable  margin  which  is  determined  according  to  a  pricing  grid  under  which  the  interest  rate
decreases  or  increases  based  on  our  ratio  of  funded  debt  to  consolidated  earnings  before  interest,  taxes,  depreciation  and
amortization (as defined in the Credit Agreement), as set forth in the table below:

Total Net Leverage Ratio
Equal to or greater than 3.25 to 1.00
Equal to or greater than 2.50 to 1.00, but less than 3.25 to 1.00
Equal to or greater than 1.75 to 1.00, but less than 2.50 to 1.00
Equal to or greater than 1.00 to 1.00, but less than 1.75 to 1.00
Less than 1.00 to 1.00

LIBOR Rate
Loans Interest
Margin
2.00%
1.75%
1.50%
1.25%
1.00%

Base Rate Loans
Interest Margin
1.00%
0.75%
0.50%
0.25%
0.00%

During the year ended December 31, 2020, the effective interest rate on the Revolving Credit Facility, after giving effect to the
impact  of  our  interest  rate  swap  and  the  amortization  of  the  loan  discount  and  debt  issuance  costs,  was  3.98%.  Interest  only
payments are due either quarterly or on the last day of any interest period, as applicable.

Except as modified by the Third Amendment as described below, Predecessor US Ecology is required to pay a commitment fee
ranging from 0.175% to 0.35% on the average daily unused portion of the Revolving Credit Facility, with such commitment fee
to be based upon Predecessor US Ecology’s total net leverage ratio (as defined in the Credit Agreement). The maximum letter of
credit capacity under the Revolving Credit Facility is $75.0 million and the Credit Agreement provides for a letter of credit fee
equal to the applicable margin for LIBOR loans under the Revolving Credit Facility. At December 31, 2020, there were $347.0
million  of  revolving  credit  loans  outstanding  on  the  Revolving  Credit  Facility.  These  revolving  credit  loans  are  due  upon  the
earliest to occur of (i) November 1, 2024 (or, with respect to any lender, such later date as requested by us and accepted by such
lender), (ii) the date of termination of the entire revolving credit commitment (as defined in the Credit Agreement) by us, and (iii)
the  date  of  termination  of  the  revolving  credit  commitment  and  are  presented  as  long-term  debt  in  the  consolidated  balance
sheets.  

Predecessor US Ecology has entered into a sweep arrangement whereby day-to-day cash requirements in excess of available cash
balances  are  advanced  to  the  Company  on  an  as-needed  basis  with  repayments  of  these  advances  automatically  made  from
subsequent  deposits  to  our  cash  operating  accounts  (the  “Sweep  Arrangement”).  Total  advances  outstanding  under  the  Sweep
Arrangement  are  subject  to  the  $40.0  million  swingline  loan  sublimit  under  the  Revolving  Credit  Facility.  Predecessor  US
Ecology’s revolving credit loans outstanding under the Revolving Credit Facility are not subject to repayment through the Sweep
Arrangement. As of December 31, 2020, there were no amounts outstanding subject to the Sweep Arrangement.

As  of  December  31,  2020,  the  availability  under  the  Revolving  Credit  Facility  was  $121.9  million,  subject  to  our  leverage
covenant limitation, with $9.8 million of the Revolving Credit Facility issued in the form of standby letters of credit utilized as
collateral for closure and post-closure financial assurance and other assurance obligations.

Predecessor US Ecology may at any time and from time to time prepay revolving credit loans and swingline loans, in whole or in
part, without premium or penalty, subject to the obligation to indemnify each of the lenders against any actual loss or expense
(including any loss or expense arising from the liquidation or reemployment of funds obtained by it to maintain a LIBOR rate
loan (as defined in the Credit Agreement) or from fees payable to terminate the deposits from which such funds were obtained)
with respect to the early termination of any LIBOR rate loan. The Credit Agreement provides for mandatory prepayment at any
time  if  the  revolving  credit  outstanding  exceeds  the  revolving  credit  commitment  (as  such  terms  are  defined  in  the  Credit
Agreement),  in  an  amount  equal  to  such  excess.  Subject  to  certain  exceptions,  the  Credit  Agreement  provides  for  mandatory
prepayment upon certain asset dispositions, casualty events and issuances of indebtedness.

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Pursuant  to  (i)  an  unconditional  guarantee  agreement  and  (ii)  a  collateral  agreement,  each  entered  into  by  Predecessor  US
Ecology and its domestic subsidiaries on April 18, 2017, Predecessor US Ecology’s obligations under the Credit Agreement are
(or will be) jointly and severally and fully and unconditionally guaranteed on a senior basis by all of the Company’s existing and
certain  future  domestic  subsidiaries  and  are  secured  by  substantially  all  of  the  assets  of  Predecessor  US  Ecology  and  the
Company’s  existing  and  certain  future  domestic  subsidiaries  (subject  to  certain  exclusions),  including  100%  of  the  equity
interests of the Company’s domestic subsidiaries and 65% of the voting equity interests of the Company’s directly owned foreign
subsidiaries (and 100% of the non-voting equity interests of the Company’s directly owned foreign subsidiaries).

The Credit Agreement contains customary restrictive covenants, subject to certain permitted amounts and exceptions, including
covenants  limiting  the  ability  of  the  Company  to  incur  additional  indebtedness,  pay  dividends  and  make  other  restricted
payments,  repurchase  shares  of  our  outstanding  stock  and  create  certain  liens.  Upon  the  occurrence  of  an  event  of  default  (as
defined in the Credit Agreement), among other things, amounts outstanding under the Credit Agreement may be accelerated and
the commitments may be terminated.

The  Credit  Agreement  also  contains  financial  maintenance  covenants,  a  maximum  consolidated  total  net  leverage  ratio  and  a
consolidated interest coverage ratio (as such terms are defined in the Credit Agreement). Except as further modified by the Third
Amendment as described below, our consolidated total net leverage ratio as of the last day of the respective fiscal quarter, may
not exceed the maximum consolidated total net leverage ratios set forth in the table below, subject to certain exceptions:

Fiscal Quarter(s)
Fiscal Quarters ending June 30, 2017 through September 30, 2019
Fiscal Quarters ending December 31, 2019 and thereafter

Amendments to the Credit Agreement

Consolidated
Total Net
Leverage Ratio
3.50:1.00
4.00:1.00

On August 6, 2019, Predecessor US Ecology entered into the first amendment (the “First Amendment”) to the Credit Agreement,
by and among Predecessor US Ecology, the subsidiaries of Predecessor US Ecology party thereto, the lenders referred to therein
and  Wells  Fargo,  as  issuing  lender,  swingline  lender  and  administrative  agent.  Effective  November  1,  2019,  the  First
Amendment, among other things, extended the expiration of the Revolving Credit Facility to November 1, 2024, permitted the
issuance of a $400.0 million incremental term loan to be used to refinance the indebtedness of NRC and pay related transaction
expenses in connection with the NRC Merger, modified the accordion feature allowing Predecessor US Ecology to request up to
the greater of (x) $250.0 million and (y) 100% of consolidated EBITDA plus certain additional amounts, increased the sublimit
for the issuance of swingline loans to $40.0 million and increased the maximum consolidated total net leverage ratio to 4.00 to
1.00.

On November 1, 2019, Predecessor US Ecology entered into the lender joinder agreement and second amendment (the “Second
Amendment”) to the Credit Agreement. Effective November 1, 2019, the Second Amendment, among other things, amended the
Credit  Agreement  to  increase  the  capacity  for  incremental  term  loans  by  $50.0  million  and  provided  for  Wells  Fargo  lending
$450.0 million in incremental term loans to Predecessor US Ecology to pay off the existing debt of NRC in connection with the
NRC  Merger,  to  pay  certain  fees,  costs  and  expenses  incurred  in  connection  with  the  NRC  Merger  and  to  repay  outstanding
borrowings  under  the  Revolving  Credit  Facility.  The  seven-year  incremental  term  loan  matures  November  1,  2026,  requires
principal repayment of 1% annually, and bears interest at LIBOR plus 2.25% or a base rate plus 1.25% (with a step-up to LIBOR
plus 2.50% or a base rate plus 1.50% in the event that US Ecology credit ratings are not BB (with a stable or better outlook) or
better from S&P and Ba2 (with a stable or better outlook) or better from Moody’s). During the year ended December 31, 2020,
the effective interest rate on the term loan, including the impact of the amortization of debt issuance costs, was 3.45%.

On June 26, 2020, Predecessor US Ecology entered into the third amendment (the “Third Amendment”) to the Credit Agreement.
Among other things, the Third Amendment amended the Credit Agreement to provide a covenant relief period through the earlier
of March 31, 2022 and the date Predecessor US Ecology elects to end such covenant relief period

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pursuant  to  the  terms  therein.  During  the  covenant  relief  period,  the  Third  Amendment  increased  Predecessor  US  Ecology’s
consolidated total net leverage ratio requirement as of the end of each fiscal quarter to certain ratios above the 4.00 to 1.00 ratio
in effect immediately before giving effect to the Third Amendment, subject to compliance with certain restrictions on restricted
payments and permitted acquisitions during such covenant relief period. Furthermore, during the covenant relief period, under the
Revolving  Credit  Facility,  revolving  credit  loans  are  available  based  on  a  base  rate  (as  defined  in  the  Credit  Agreement)  or
LIBOR, at  the  Company’s  option,  plus  an  applicable  margin  which  is  determined  according  to  a  pricing  grid  under  which  the
interest rate decreases or increases based on our ratio of funded debt to consolidated earnings before interest, taxes, depreciation
and amortization (as defined in the Credit Agreement), as set forth in the table below:

Consolidated Total Net Leverage Ratio
Equal to or greater than 4.50 to 1.00
Equal to or greater than 4.00 to 1.00, but less than 4.50 to 1.00
Equal to or greater than 3.25 to 1.00, but less than 4.00 to 1.00
Equal to or greater than 2.50 to 1.00, but less than 3.25 to 1.00
Equal to or greater than 1.75 to 1.00, but less than 2.50 to 1.00
Equal to or greater than 1.00 to 1.00, but less than 1.75 to 1.00
Less than 1.00 to 1.00

LIBOR Rate
Loans Interest
Margin
2.50%
2.25%
2.00%
1.75%
1.50%
1.25%
1.00%

Base Rate Loans
Interest Margin
1.50%
1.25%
1.00%
0.75%
0.50%
0.25%
0.00%

Additionally,  during  the  covenant  relief  period,  Predecessor  US  Ecology  is  required  to  pay  a  commitment  fee  ranging  from
0.175% to 0.40% on the average daily unused portion of the Revolving Credit Facility, with such commitment fee to be based
upon Predecessor US Ecology’s total net leverage ratio (as defined in the Credit Agreement).

At December 31, 2020, we were in compliance with all of the financial covenants in the Credit Agreement, as amended by the
Third Amendment.

2014 Credit Agreement

On June  17, 2014, Predecessor  US Ecology  entered  into  a  $540.0  million  senior  secured  credit  agreement  with  a  syndicate  of
banks comprised of a $415.0 million term loan (the “Former Term Loan”) with a maturity date of June 17, 2021 and a $125.0
million revolving line of credit (the “Former Revolving Credit Facility”) with a maturity date of June 17, 2019.

The Former Term Loan provided an initial commitment amount of $415.0 million and bore interest at a base rate (as defined in
the 2014 Credit Agreement) plus 2.00% or LIBOR plus 3.00%, at Predecessor US Ecology’s option.

The Former Revolving Credit Facility provided up to $125.0 million of revolving credit loans or letters of credit with the use of
proceeds restricted solely for working capital and other general corporate purposes. Under the Former Revolving Credit Facility,
revolving  loans  were  available  based  on  a  base  rate  (as  defined  in  the  2014  Credit  Agreement)  or  LIBOR,  at  Predecessor  US
Ecology’s  option,  plus  an  applicable  margin  which  was  determined  according  to  a  pricing  grid  under  which  the  interest  rate
decreased  or  increased  based  on  our  ratio  of  funded  debt  to  consolidated  earnings  before  interest,  taxes,  depreciation  and
amortization  (as  defined  in  the  2014  Credit  Agreement).  The  maximum  letter  of  credit  capacity  under  the  Former  Revolving
Credit Facility was $50.0 million and the 2014 Credit Agreement provided for a letter of credit fee equal to the applicable margin
for LIBOR loans under the Former Revolving Credit Facility.

Interest Rate Swap

In March 2020, the Company entered into an interest rate swap agreement with Wells Fargo, effectively fixing the interest rate on
$480.0 million, or approximately 61%, of the Revolving Credit Facility and term loan borrowings outstanding as of December
31, 2020. In connection with our entry into the March 2020 interest rate swap, we terminated our existing interest rate swap prior
to its scheduled maturity date of June 2021. As the original hedged forecasted transaction (periodic

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interest payments on our variable-rate debt) remains probable, the $1.8 million net loss related to the terminated swap reported in
AOCI at the termination date will be amortized as additional interest expense over its original maturity.

The fair value of the interest rate swap as of December 31, 2020 is a liability of $9.7 million which is included in Other long-term
liabilities  with  the  offset  to  Accumulated  other  comprehensive  loss  on  the  Company’s  consolidated  balance  sheet.  During  the
years ended December 31, 2020, 2019 and 2018, the Company recognized $3.3 million of losses, $170,000 of gains and $375,000
of losses, respectively, related to settlements of the interest rate swaps which were recorded as Interest expense on the Company’s
consolidated statements of operations.

NOTE 17. INCOME TAXES

The domestic and foreign components of (loss) income before income taxes consisted of the following:

$s in thousands
Domestic
Foreign
(Loss) income before income taxes

2020

2019

2018

  $ (403,492)  $ 30,706   $ 46,147
18,711
$ 64,858

$ (393,601) $ 49,799

19,093  

9,891  

The components of the income tax (benefit) expense consisted of the following:

$s in thousands
Current:

U.S. Federal
State
Foreign
Total current
Deferred:

U.S. Federal
State
Foreign
Total deferred
Income tax (benefit) expense

2020

2019

2018

$ (9,905) $ 3,120
1,547
5,426
  10,093

3,062
6,768
(75)

$

2,239
2,368
4,746
9,353

1,384
(2,859)
(2,692)
(4,167)

5,977
714
(125)
6,566
$ (4,242) $ 16,659

5,675
172
63
5,910
$ 15,263

A reconciliation between the statutory federal income tax rate and the effective income tax rate is as follows:

Taxes computed at federal statutory rate
Goodwill impairment charges
State income taxes (net of federal income tax benefit)
Share-based compensation
Research and development credits
Non-deductible transaction costs
Global intangible low taxed income
Tax Cuts and Jobs Act of 2017
Foreign rate differential
Net operating loss reduction
Change in unrecognized tax benefits
State deferred rate differential
Other

127

     2020     

2018  

2019     
21.0 %   21.0 %   21.0 %
—
(20.4)
5.7
0.3
(0.4)
(0.1)
(0.8)
0.1
3.4
—
1.1
—
—
—
2.5
(0.3)
—
(1.7)
—
1.7
(1.6)
(0.1)
2.6
0.6
1.1 %   33.5 %   23.5 %

0.5
5.1
(1.3)
(2.0)
—
—
(0.3)
1.7
—
—
—
(1.2)

    
    
    
 
    
    
    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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The components of the total net deferred tax assets and liabilities as of December 31, 2020 and 2019 consisted of the following:

$s in thousands
Deferred tax assets:

Net operating losses
Operating leases
Foreign tax credit and capital loss carry forwards
Accruals, allowances and other
Environmental compliance and other site related costs
Business interest expense
Unrealized foreign exchange gains

Total deferred tax assets

Less: valuation allowance

Net deferred tax assets
Deferred tax liabilities:

Property and equipment
Intangible assets
Operating leases
Other

Total deferred tax liabilities
Net deferred tax liability

$

2020

2019

$

18,751
12,875
4,928
8,691
10,909
—
790
56,944
(4,207)
52,737

14,121
14,034
4,705
8,966
9,203
6,498
962
58,489
(4,965)
53,524

(53,838)
(107,109)
(12,875)
102
(173,720)

(53,540)
(112,446)
(14,034)
(1,849)
(181,869)
$ (120,983) $ (128,345)

All  deferred  tax  assets  and  liabilities  are  recorded  in  Deferred  income  taxes,  net  on  the  consolidated  balance  sheets  as  of
December 31, 2020 and 2019.

The Company acquired U.S. federal and state net operating loss and business interest expense carryforwards of NRC upon the
acquisition  of  that  entity  in  November  2019,  subject  to  the  ownership  change  limitations.  Upon  finalization  of  the  purchase
accounting related to the NRC Merger, acquired U.S. federal net operating losses, foreign net operating losses, state net operating
losses and business interest expense carryforwards from NRC total approximately $97.1 million, $3.1 million, $40.4 million and
$39.7 million, respectively, net of amounts unavailable due to previous ownership change limitations, which are included in the
total Net operating losses and Business interest expense above.

Utilization of the Company’s net operating loss carryforwards are subject to an annual limitation due to the ownership change
limitations  provided  by  the  Internal  Revenue  Code  and  similar  state  provisions.  Such  an  annual  limitation  could  result  in  the
expiration  or elimination  of the net operating  loss and business interest  expense carryforwards  before utilization.  Management
believes that the limitation will not limit utilization of the carryforwards prior to their expiration based on the historic profitability
of the Company and certain favorable adjustments available to the annual limitation calculations.

As of December 31, 2020, we had approximately $66.8 million, $7.2 million, and $57.2 million of federal, foreign, and state and
local  net  operating  losses  (“NOLs”),  respectively.  A  portion  of  the  federal  NOLs  begin  to  expire  in  2029  and  the  remaining
federal  NOLs  have  no  expiration  date.  Approximately  $29.5  million  of  the  US  Federal  NOLs  are  indefinite  lived  and  the
remainder  expire  between  2029  and  2037.  Foreign  NOLs  are  indefinite  lived  and  therefore  have  no  expiration  date.  State  and
local NOLs expire between 2020 and 2039. We have historically recorded a valuation allowance for certain deferred tax assets
due to uncertainties regarding future operating results and limitations on utilization of state and local NOLs for tax purposes. At
December  31, 2020 and 2019, we maintained  a valuation  allowance  of approximately  $79,000 and $260,000, respectively,  for
state and local NOLs that are not expected to be utilizable prior to expiration.

The  valuation  allowance  as  of  December  31,  2020  was  primarily  related  to  foreign  tax  credit  that,  in  the  judgment  of
management,  was  not  more  likely  than  not  to  be  realized.  The  valuation  allowance  as  of  December  31,  2019  were  primarily
related to foreign tax credits and capital loss carryforwards that, in the judgment of management, were not more likely than not to
be  realized.  In  assessing  the  realizability  of  deferred  tax  assets,  management  considers  whether  it  is  more  likely  than  not  that
some or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets

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depends  on  the  generation  of  future  taxable  income  during  the  periods  in  which  those  temporary  differences  are  deductible.
Management  considers  the  scheduled  reversal  of  deferred  tax  liabilities  (including  the  impact  of  available  carryback  and
carryforward  periods),  projected  taxable  income,  and  tax-planning  strategies  in  making  this  assessment.  The  net  valuation
allowance decreased $181,000 for the year ended December 31, 2020 compared to December 31, 2019.

Changes to unrecognized tax benefits for the years ended December 31, 2020, 2019 and 2018, were as follows:

$s in thousands
Unrecognized tax benefits, beginning of year

Gross increases - tax positions in prior period
Gross decreases - tax positions in prior period
Gross increases - tax positions in current period
Settlements
Lapse of statute of limitations

Unrecognized tax benefits, end of year

2020
8,335
—
(8,091)
50
—
(55)
239

$

$

2019

2018

$

$

555
8,088
(9)
52
(284)
(67)
8,335

$

$

—
494
—
61
—
—
555

As of December 31, 2020, the total amount of unrecognized tax benefits was $239,000, of which $227,000, if recognized, would
favorably  impact  our  future  earnings.  The  $8.1  million  decrease  in  prior  period  tax  positions  related  to  the  acquired  NRC  net
operating losses that were recorded as a reduction to our net operating losses deferred tax asset in 2019 for which an election to
treat  them  as  expired  was  made  during  2020.  We  do  not  anticipate  that  the  amount  of  existing  unrecognized  tax  benefits  will
significantly increase or decrease within the next 12 months. Accrued interest and penalties related to unrecognized tax benefits
as of December 31, 2020 and December 31, 2019 were not significant. There is no accrual for penalties.

The  Company  files  income  tax  returns  in  the  U.S.  Federal  and  various  state,  local  and  foreign  jurisdictions.  The  Company  is
subject  to  examination  by  the  IRS  for  tax  years  2017  through  2020.  The  2016  through  2020  state  tax  returns  are  subject  to
examination by state tax authorities. Stablex Canada, Inc. is currently under examination by the Canadian Revenue Agency for
years 2018 through 2020. The tax years 2016 through 2020 remain subject to examination in our significant foreign jurisdictions.
The Company does not anticipate any material change as a result of any current examinations in progress.

NOTE 18. COMMITMENTS AND CONTINGENCIES

Litigation and Regulatory Proceedings

In the ordinary course of business, we are involved in judicial and administrative proceedings involving federal, state, provincial
or  local  governmental  authorities,  including  regulatory  agencies  that  oversee  and  enforce  compliance  with  permits.  Fines  or
penalties  may  be  assessed  by  our  regulators  for  non-compliance.  Actions  may  also  be  brought  by  individuals  or  groups  in
connection  with  permitting  of  planned  facilities,  modification  or  alleged  violations  of  existing  permits,  or  alleged  damages
suffered  from  exposure  to  hazardous  substances  purportedly  released  from  our  operated  sites,  as  well  as  other  litigation.  We
maintain  insurance  intended  to  cover  property  and  damage  claims  asserted  as  a  result  of  our  operations.  Periodically,
management  reviews  and  may  establish  reserves  for  legal  and  administrative  matters,  or  other  fees  expected  to  be  incurred  in
relation to these matters.

In  December  2010,  National  Response  Corporation,  a  subsidiary  of  NRC  acquired  by  the  Company  in  the  NRC  Merger,  was
named  as  one  of  many  “Dispersant  Defendants”  in  multi-district  litigation,  arising  out  of  the  explosion  of  the  BP  Deepwater
Horizon (“BP”) oil rig, filed in the U.S. District Court for the Eastern District of Louisiana (“In re Deepwater Horizon” or the
“MDL”). The claims against National Response Corporation, and other “Dispersant Defendants,” were brought by workers and
others  who  alleged  injury  arising  from  post-explosion  clean–up  efforts,  including  particularly  the  use  of  certain  chemical
dispersants.  In  January  2013,  the  Court  approved  a  Medical  Benefits  Class  Action  Settlement,  which,  among  other  things,
provided for a “class wide” settlement as well as a release of claims against Dispersant Defendants, including National Response
Corporation.  Further,  National  Response  Corporation  successfully  moved  the  court  to  dismiss  all  claims  against  it  based  on
derivative  immunity,  as  it  was  acting  at  the  direction  of  the  U.S.  Government.  In  early  2018,  BP  began  asserting  an  alleged
contractual right of indemnity against National Response Corporation and

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others  in  post-settlement  lawsuits  brought  by  persons  who  had  either  chosen  not  to  participate  in  the  class-wide  agreement  or
whose injuries were allegedly manifest after the period covered by the claim submission process. The Company advised BP that
it considers the attempt to bring National Response Corporation back into previously settled litigation to be improper and moved
for  a  declaratory  judgment  that  it  owes  no  indemnity  or  contribution  to  BP,  raising  various  arguments,  including  BP’s  own
actions and conduct over the preceding nine years with respect to these claims (including its failure to seek indemnity) and the
resultant prejudice to National Response Corporation, BP’s waiver of any indemnity, and the court’s prior finding that National
Response  Corporation  is  entitled  to  derivative  immunity.  In  response,  BP  asserted  counterclaims  against  National  Response
Corporation for a declaratory judgment that National Response Corporation must indemnify BP under certain circumstances and
for  unjust  enrichment.  National  Response  Corporation  successfully  moved  to  dismiss  the  unjust  enrichment  claim.  The  parties
filed simultaneous judgment on the pleadings briefs in February 2020, and all oppositions were filed on March 16, 2020. On May
4, 2020, the court found in favor of National Response Corporation, and held that the Company is not liable to BP or any back
end litigation  plaintiffs for any damages related to the Deepwater Horizon oil spill. BP timely appealed the ruling on June 11,
2020. The Company is currently unable to estimate the range of possible losses associated with this proceeding. However, the
Company  also  believes  that,  were  it  deemed  to  have  liability  arising  out  of  or  related  to  BP’s  indemnity  claims,  such  liability
would be covered by an indemnity by SEACOR Holdings Inc., the former owner of National Response Corporation, in favor of
National Response Corporation and its affiliates.

In January 2019, Kevin Sullivan, a driver for NRC from May 1, 2018 to August 22, 2018 filed a class action complaint against
NRC in  California  Superior  Court (Kevin  Sullivan  et. Al. v. National  Response Corp., NRC Environmental  Services,  Inc. and
Paul Taveira et al.) alleging the failure by the defendants to provide meal and rest breaks required by California law and requiring
employees  to  work  off  the  clock.  Mr.  Sullivan’s  complaint  also  asserted  a  claim  under  the  California  Labor  Code  Private
Attorneys General Act (“PAGA”), which permits an employee to assert a claim for violations of certain California Labor Code
provisions on behalf of all aggrieved employees to recover statutory penalties that could be recovered by the State of California.
On April 17, 2019, NRC filed a motion to compel individual arbitration, strike Mr. Sullivan’s class action claims and stay the
PAGA claim pending the outcome of Mr. Sullivan’s individual claim; the court subsequently granted NRC’s motion to compel.
In response, Mr. Sullivan amended his complaint to dismiss the class claims without prejudice and proceed solely with the PAGA
claim.  The  parties  participated  in  a  confidential  mediation  on  August  3,  2020,  and  reached  a  settlement  resolving  the  pending
PAGA  claim.  The  court  issued  a  Notice  of  Entry  of  Judgment  on  October  30,  2020,  approving  the  parties’  settlement.  The
settlement administrator confirmed that the notices and settlement payments totaling $500,000 went out to aggrieved employees
on December 28, 2020, in accordance with the distribution timeline. This matter is resolved.

On November 17, 2018, an explosion occurred at our Grand View, Idaho facility, resulting in one employee fatality and injuries
to other employees. The incident severely damaged the facility’s primary waste-treatment building as well as surrounding waste
handling,  waste  storage,  maintenance  and  administrative  support  structures,  resulting  in  the  closure  of  the  entire  facility  that
remained in effect through January 2019. In addition to initiating and conducting our own investigation into the incident, we fully
cooperated  with  the  Idaho  Department  of  Environmental  Quality,  the  U.S.  Environmental  Protection  Agency  and  the
Occupational Safety and Health Administration (“OSHA”) to support their comprehensive and independent investigations of the
incident. On January 10, 2020, we entered into a settlement agreement with OSHA settling a complaint made by OSHA relating
to  the  incident  for  $50,000.  On  January  28,  2020,  the  Occupational  Safety  and  Health  Review  Commission  issued  an  order
terminating  the  proceeding  relating  to  such  OSHA  complaint.  We  maintain  workers’  compensation  insurance,  business
interruption  insurance  and  liability  insurance  for  personal  injury,  property  and  casualty  damage.  We  believe  that  any  potential
third-party claims associated with the explosion in excess of our deductibles are expected to be resolved primarily through our
insurance policies. Although we carry business interruption insurance, a disruption of our business caused by a casualty event,
including the full and partial closure of our Grand View, Idaho facility, may result in the loss of business, profits or customers
during the time of such closure. Accordingly, our insurance policies may not fully compensate us for these losses. In November
2020, we commenced a lawsuit against the generator and broker of the waste, the treatment of which we believe contributed to
the Grand View explosion, seeking damages in connection with the losses suffered as a result of the incident.

The Company is actively working with its insurance companies on comprehensive property and business interruption insurance
claims related to the incident at our Grand View, Idaho facility in the fourth quarter of 2018. The Company

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recognized  insurance  recoveries  of  $462,000  during  2020,  related  to  expenses  incurred  to  continue  limited  operations  at  the
facility.

Other than as described above, we are not currently a party to any material pending legal proceedings and are not aware of any
other  claims  that  could,  individually  or  in  the  aggregate,  have  a  materially  adverse  effect  on  our  financial  position,  results  of
operations or cash flows.

NOTE 19. EQUITY

Equity-Based Purchase Consideration

Pursuant to the NRC Merger Agreement, on November 1, 2019 the Company paid $626.5 million of the purchase price in equity-
based consideration comprising 9,337,949 newly-issued shares of US Ecology common stock, 3,772,753 replacement warrants,
118,239 replacement restricted stock units and 29,400 replacement stock options.

Stock Repurchase Program

On June 1, 2016, the Company’s Board of Directors authorized the repurchase of $25.0 million of the Company’s outstanding
common  stock.  On  May  29,  2018,  the  repurchase  program  was  extended.  On  December  30,  2019,  the  Company’s  Board  of
Directors authorized the repurchase of $25.0 million of the Company’s outstanding warrants (such dollar amount considered in
the aggregate with the dollar amount of shares of common stock repurchased by the Company, if any, under the Company’s share
repurchase program) as part of the Company’s share repurchase program. On June 6, 2020, the Company’s Board of Directors’
authorization  to  repurchase  the  Company’s  outstanding  shares  of  common  stock  and  warrants  under  the  share  repurchase
program expired. In the future, the Board of Directors may consider reauthorizing the repurchase program at any time, and the
timing of any future repurchases of common stock or warrants will be based upon prevailing market conditions and other factors.
The Company may from time to time also consider other options for repurchasing some or all of its warrants, including but not
limited to a tender offer for all of the outstanding warrants. The Company repurchased 397,600 shares of common stock in an
aggregate amount of $17.3 million under the repurchase program during the year ended December 31, 2020.

Omnibus Incentive Plan

On May 27, 2015, the stockholders of Predecessor US Ecology approved the Omnibus Incentive Plan (as amended, “Pre-Merger
Omnibus Plan”), which was approved by Predecessor US Ecology’s Board of Directors on April 7, 2015. In connection with the
closing of the NRC Merger, the Company assumed the Pre-Merger Omnibus Plan, amended and restated such plan and renamed
it  the  Amended  and  Restated  US  Ecology,  Inc.  Omnibus  Incentive  Plan  (the  “Omnibus  Plan”)  for  the  purpose  of  issuing
replacement awards to award recipients under the Omnibus Plan pursuant to the NRC Merger Agreement and for the issuance of
additional awards in the future.

The  Omnibus  Plan  was  developed  to  provide  additional  incentives  through  equity  ownership  in  US  Ecology  and,  as  a  result,
encourage employees, consultants and non-employee directors to contribute to our success. The Omnibus Plan provides, among
other things, the ability for the Company to grant restricted stock, performance stock, options, stock appreciation rights, restricted
stock units, performance stock units and other share-based awards or cash awards to employees, consultants and non-employee
directors.

The  Omnibus  Plan  expires  on  April  7,  2025  and  authorizes  1,500,000  shares  of  common  stock  for  grant  over  the  life  of  the
Omnibus Plan. As of December 31, 2020, 550,673 shares of common stock remain available for grant under the Omnibus Plan.

Subsequent  to  the  approval  of  the  Pre-Merger  Omnibus  Plan  by  Predecessor  US  Ecology  in  May  2015,  we  stopped  granting
equity  awards  under  the  American  Ecology  Corporation  2008  Stock  Option  Incentive  Plan  (“Pre-Merger  2008  Stock  Option
Plan”). However, in connection with the closing of the NRC Merger, the Company assumed the Pre-Merger 2008 Stock Option
Plan,  amended  and  restated  such  plan  and  renamed  it  in  the  Amended  and  Restated  US  Ecology,  Inc.  2008  Stock  Option
Incentive Plan (the “2008 Stock Option Plan”) solely for the purpose of issuing replacement awards to award

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recipients thereunder and remains in effect solely for the settlement of awards granted under such plan and no future grants may
be  made  under  such  plan.  No  shares  that  are  reserved  but  unissued  under  the  2008  Stock  Option  Plan  or  that  are  outstanding
under  the  2008  Stock  Option  Plan  and  reacquired  by  the  Company  for  any  reason  will  be  available  for  issuance  under  the
Omnibus Plan.

In  addition,  in  connection  with  the  closing  of  the  NRC  Merger,  the  Company  assumed  the  NRC  Group  Holdings  Corp.  2018
Equity Incentive Plan previously maintained by NRC by adopting the Amended and Restated US Ecology, Inc. 2018 Equity and
Incentive Compensation Plan solely for the purpose of issuing replacement awards to award recipients thereunder pursuant to the
NRC Merger Agreement, and no future grants may be made under such plan.

Performance Stock Units (PSUs)

We have PSU awards outstanding under the Omnibus Plan. Each PSU represents the right to receive, on the settlement date, one
share of the Company’s common stock. The total number of 2018 PSUs each participant is eligible to earn ranges from 0% to
200% of the target number of PSUs granted in 2018. The actual number of 2018 PSUs that will vest and be settled in shares is
determined based on total stockholder return relative to a set of peer companies, over a three-year performance period. The total
number of 2019 PSUs each participant is eligible to earn ranges from 0% to 300% of the target number of PSUs granted in 2019.
The actual number of 2019 PSUs that will vest and be settled in shares is determined based on achievement of certain Company
financial  performance  metrics  and  total  stockholder  return  relative  to  a  set  of  peer  companies,  over  a  three-year  performance
period. Compensation expense is recorded over the awards’ three-year vesting period.

On January  24,  2020,  the  Company  granted  5,358  PSUs to  certain  employees.  Each  January  2020  PSU represents  the  right  to
receive, on the settlement date, one share of the Company’s common stock. The actual number of January 2020 PSUs that will
vest and be settled in shares is determined based on the achievement of certain milestones. The fair value of the January 2020
PSUs  estimated  on  the  grant  date  was  $54.55  per  unit.  Compensation  expense  is  recorded  over  the  awards’  milestone
measurement period.

On July 16, 2020, the Company granted 51,922 PSUs to certain employees. Each July 2020 PSU represents the right to receive,
on  the  settlement  date,  one  share  of  the  Company’s  common  stock.  The  total  number  of  July  2020  PSUs  each  participant  is
eligible to earn ranges from 0% to 200% of the target number of PSUs granted. The actual number of July 2020 PSUs that will
vest  and  be  settled  in  shares  is  determined  at  the  end  of  a  2.5-year  performance  period  beginning  July  1,  2020,  based  on  the
Company’s total shareholder return relative to a set of peer companies. Compensation expense is recorded over the awards’ 2.5-
year vesting period.

A summary of our PSU activity is as follows:

Outstanding as of December 31, 2019

Granted
Vested
Cancelled, expired or forfeited
Outstanding as of December 31, 2020

132

Weighted
Average
Grant Date
Fair Value
61.11
43.60
61.37
54.55
49.45

Units
42,711 $
57,351
(13,322)
(670)
86,070 $

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The fair value of PSUs granted on July, 16, 2020, March 1, 2019 and January 2, 2018 was estimated as of the date of grant using
a Monte Carlo simulation model. The grant date fair value of PSUs granted on July 16, 2020, March 1, 2019 and January 2, 2018
was $42.47, $58.20 and $63.56 per unit, respectively. Assumptions used in the Monte Carlo simulation to calculate the fair value
of the PSUs granted are as follows:

Stock price on grant date
Expected term
Expected volatility
Risk-free interest rate
Expected dividend yield

2020
$ 32.89

2019
$ 58.40

2018
$ 51.00

2.5 years
40.6 %
0.2 %
0.0 %

3.0 years
30 %  
2.5 %  
1.1 %  

3.0 years
30 %  
2.0 %  
1.4 %  

During 2020, 13,322 PSUs vested and PSU holders earned 8,619 shares of the Company’s common stock.

Stock Options

We  have  stock  option  awards  outstanding  under  the  2008  Stock  Option  Plan  and  the  Omnibus  Plan.  Stock  options  expire  ten
years from the date of grant and generally vest over a period of three years from the date of grant. Vesting requirements for non-
employee directors are contingent on attending a minimum of 75% of regularly scheduled board meetings during the year. Upon
the exercise of stock options, common stock is issued from treasury stock or, when depleted, from new stock issuances.

A summary of our stock option activity is as follows:

Outstanding as of December 31, 2019

Granted
Exercised
Cancelled, expired or forfeited
Outstanding as of December 31, 2020
Exercisable as of December 31, 2020

Weighted
Average
Exercise

Aggregate
Intrinsic

     Shares

     Price

     Value

Weighted
Average
Remaining
Contractual
    Term (Years)

293,588
78,700
(6,880)
(8,375)
357,033
240,303

$ 48.23
54.20
  34.69
  42.89
$ 49.93
$ 47.06

$
$

—
—  

6.6
5.6

The  weighted  average  grant  date  fair  value  of  all  stock  options  granted  during  2020,  2019  and  2018  was  $12.30,  $14.26  and
$11.64 per share,  respectively.  The total  intrinsic  value  of stock options exercised  during 2020, 2019 and 2018 was $100,000,
$152,000  and  $6.6  million,  respectively.  During  2020,  option  holders  tendered  3,738  options  in  connection  with  options
exercised via net share settlement.

The fair value of each stock option is estimated as of the date of grant using the Black-Scholes option-pricing model. Expected
volatility is estimated based on an average of actual historical volatility and implied volatility corresponding to the stock option’s
estimated  expected  term.  We  believe  this  approach  to  determine  volatility  is  representative  of  future  stock  volatility.  The
expected  term  of  a  stock  option  is  estimated  based  on  analysis  of  stock  options  already  exercised  and  foreseeable  trends  or
changes in behavior. The risk-free interest rates are based on the U.S. Treasury securities maturities as of each applicable grant
date. The dividend yield is based on analysis of actual historical dividend yield.

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The significant weighted-average assumptions relating to the valuation of option grants are as follows:

Expected life
Expected volatility
Risk-free interest rate
Expected dividend yield

Restricted Stock

2018

2019     
     2020     
  4.0 years 2.7 years 3.8 years
30 %  
2.1 %  
1.2 %  

30 %  
  1.4 %  
  1.2 %  

30 %
2.0 %
1.5 %

We  have  restricted  stock  awards  outstanding  under  the  Omnibus  Plan.  Generally,  restricted  stock  awards  vest  annually  over  a
three-year  period.  Vesting  of  restricted  stock  awards  to  non-employee  directors  is  contingent  on  the  non-employee  director
attending a minimum of 75% of regularly scheduled board meetings and 75% of the meetings of each committee of which the
non‐employee director is a member during the year. Upon the vesting of restricted stock awards, common stock is issued from
treasury stock or, when depleted, from new stock issuances.

A summary of our restricted stock activity is as follows:

Outstanding as of December 31, 2019

Granted
Vested

Outstanding as of December 31, 2020

     Shares
64,654
51,700
(43,588)
72,766

Weighted
Average
Grant Date
     Fair Value
55.62
48.35
53.93
51.47

$

$

The  total  fair  value  of  restricted  stock  vested  during  2020,  2019  and  2018  was  $2.3  million,  $2.5  million  and  $2.2  million,
respectively.

Restricted Stock Units

We  have  restricted  stock  unit  awards  outstanding  under  the  Omnibus  Plan.  Each  restricted  stock  unit  represents  the  right  to
receive, on the settlement date, one share of the Company’s common stock. Generally, restricted stock unit awards vest annually
over a three-year period. Upon the vesting of restricted stock unit awards, common stock is issued from treasury stock or, when
depleted, from new stock issuances.

A summary of our restricted stock unit activity is as follows:

Outstanding as of December 31, 2019

Granted
Vested
Cancelled, expired or forfeited
Outstanding as of December 31, 2020

Weighted
Average
Grant Date
Fair Value
59.05
33.21
58.71
57.08
39.92

Units

131,199 $
111,830
(71,050)  
(24,736)  
147,243 $

The  total  fair  value  of  restricted  stock  units  vested  during  2020,  2019  and  2018  was  $3.0  million,  $4.8  million  and  $967,000,
respectively.

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Treasury Stock

During  2020,  the  Company  repurchased  17,169  shares  of  the  Company’s  common  stock  in  connection  with  the  net  share
settlement  of  employee  equity  awards  at  an  average  cost  of  $57.91  per  share,  repurchased  397,600  shares  of  the  Company’s
common stock under our stock repurchase program at an average cost of $43.61 per share and issued 56,381 shares of restricted
stock under the Omnibus Plan from our treasury stock at an average cost of $44.20 per share.

During 2019 prior to the NRC Merger, Predecessor US Ecology issued 8,900 shares of restricted stock under the Omnibus Plan,
from  our  treasury  stock  at  an  average  cost  of  $57.77  per  share  and  repurchased  14,462  shares  of  Predecessor  US  Ecology’s
common stock in connection with the net share settlement of employee equity awards at an average cost of $63.34 per share. In
connection with the closing of the NRC Merger, the outstanding treasury stock of Predecessor US Ecology was cancelled.

Share-Based Compensation Expense

All share-based compensation is measured at the grant date based on the fair value of the award, and is recognized as an expense
in earnings over the requisite service period. The components of pre-tax share-based compensation expense (primarily included
in  Selling,  general  and  administrative  expenses  in  our  consolidated  statements  of  operations)  and  related  tax  benefits  were  as
follows:

$s in thousands
Share-based compensation from:

Stock options
Restricted stock
Restricted stock units (1)
Performance stock units (2)
Total share-based compensation

Income tax benefit

Share-based compensation, net of tax

2020

2019

2018

$

725
2,032
3,810
1,266
7,833
(2,115)
$ 5,718

$

575
1,662
6,193
831
9,261
(3,098)
$ 6,163

$

727
1,590
1,324
725
4,366
(1,027)
$ 3,339

(1) Share-based  compensation  from  restricted  stock  units  for  the  years  ended  December  31,  2020  and
2019  includes  $605,000  and  $3.7  million,  respectively,  of  compensation  expense  related  to  the
accelerated vesting of restricted stock unit awards upon the termination of former employees of NRC
subsequent to the NRC Merger in accordance with change-in-control provisions of their respective
employment  agreements.  Share-based  compensation  from  restricted  stock  units  for  the  year  ended
December  31,  2020  also  includes  $405,000  of  compensation  expense  related  restricted  stock  unit
awards  granted  to  certain  employees  identified  as  critical  to  the  successful  integration  of  NRC.
Share-based  compensation  from  these  awards  is  attributable  entirely  to  the  NRC  Merger  therefore
the  Company  has  classified  this  portion  of  share-based  compensation  expense  as  business
development  and  integration  expenses  within  Selling,  general  and  administrative  expenses  in  our
consolidated statements of operations.

(2) Share-based  compensation  from  performance  stock  units  for  the  year  ended  December  31,  2020
includes  $173,000 of  compensation  expense  related  to  milestone-based  performance  stock  unit
awards  granted  to  certain  employees  identified  as  critical  to  the  successful  integration  of  NRC.
Share-based  compensation  from  these  awards  is  attributable  entirely  to  the  NRC  Merger  therefore
the  Company  has  classified  this  portion  of  share-based  compensation  expense  as  business
development  and  integration  expenses  within  Selling,  general  and  administrative  expenses  in  our
consolidated statements of operations.

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The  tax  benefits  from  stock  options  exercised  during  2020,  2019  and  2018  were  $113,000,  $321,000  and  $1.4  million,
respectively.

Unrecognized Share-Based Compensation Expense

As of December 31, 2020, there was $9.5 million of unrecognized compensation expense related to unvested share-based awards
granted under our share-based award plans. The expense is expected to be recognized over a weighted average remaining vesting
period of approximately two years.

Warrants

At December 31, 2020, there were a total of 3,772,753 warrants outstanding. Each warrant entitles the holder thereof to purchase
one share of common stock at a price of $58.67 per share, subject to certain adjustments. The warrants may be exercised only for
a whole number of shares of common stock. No fractional shares will be issued upon exercise of the warrants. The warrants will
expire at 5:00 p.m. New York City time on October 17, 2023, or earlier upon redemption or liquidation. The warrants are listed
on the Nasdaq Capital Market under the symbol “ECOLW”. The Company may call the warrants for redemption, in whole and
not in part, at a price of $0.01 per warrant, upon not less than 30 days’ prior written notice of redemption to each warrant holder,
if, and only if, the reported last sale price of Common Stock equals or exceeds $91.84 per share on each of 20 trading days within
the 30 trading-day period ending on the business day prior to the date on which notice of the redemption is given and provided
that there is an effective  registration statement covering the shares of Common Stock issuable on exercise of the warrants and
subject to the satisfaction of certain other requirements. The warrants were determined to be equity classified in accordance with
ASC 815, Derivatives and Hedging.

NOTE 20. EARNINGS PER SHARE

$s and shares in thousands, except per share amounts
Net (loss) income
Weighted average basic shares outstanding

2020

Basic

     Diluted
$ (389,359) $ (389,359) $ 33,140
  23,521

     Basic

31,126

31,126

2019
     Diluted      Basic

2018
     Diluted
$ 49,595
  21,888

$ 49,595
  21,888

$ 33,140
  23,521

228
  23,749

Dilutive effect of share-based awards and warrants
Weighted average diluted shares outstanding

—
31,126

159
  22,047

(Loss) earnings per share
Anti-dilutive shares excluded from calculation

$

(12.51) $

(12.51) $
4,213

1.41

$

1.40
90

$

2.27

$

2.25
46

NOTE 21. SEGMENT REPORTING

Financial Information by Segment

Effective in the fourth quarter of 2020, we have made changes to the manner in which we manage our business, make operating
decisions and assess our performance. The energy waste business that was acquired through the NRC Merger now comprises our
Energy Waste segment. Prior to this change, the energy waste business was included in the Waste Solutions segment (formerly
“Environmental Services”). All periods presented below have been recast to reflect these changes. Under our new structure our
operations  are  managed  in  three  reportable  segments  reflecting  our  internal  management  reporting  structure  and  nature  of
services offered as follows:

Waste Solutions (formerly  “Environmental Services”)—This segment provides a broad range of specialty  material
management  services  including  transportation,  recycling,  treatment  and  disposal  of  hazardous,  non-hazardous  and
radioactive waste at Company-owned or operated landfill, wastewater, deep-well injection and other treatment facilities,
excluding the services within our Energy Waste segment.

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Field  Services  (formerly  “Field  &  Industrial  Services”)—This  segment  provides  specialty  field  services  and  total
waste  management  solutions  to  commercial  and  industrial  facilities  and  to  government  entities  through  our  10-day
transfer  facilities  and  at  customer  sites,  both  domestic  and  international.  Specialty  field  services  include  standby
 retail  services,
services,
transportation,
 waste
 Total
characterization, transportation and disposal of non- hazardous and hazardous waste.

 services  include  on-site  management,

 industrial  cleaning  and  maintenance,

 emergency  response,

 and  other  services.

 waste  management

 remediation,

 lab  packs,

Energy Waste—This segment provides energy-related services and waste disposal services predominately to upstream
energy customers currently concentrated in the Eagle Ford and Permian Basin. Services include spill containment and
site remediation, equipment cleaning & maintenance services, specialty equipment rental, including tanks, pumps and
containment,  safety  monitoring  and  management  and  transportation  and  disposal.  This  segment  includes  all  of  the
energy waste business of the legacy NRC operations and none of the legacy US Ecology operations.

The operations not managed through our three reportable segments are recorded as “Corporate.” Corporate selling, general and
administrative expenses include typical corporate items such as legal, accounting and other items of a general corporate nature.
Income  taxes  are  assigned  to  Corporate,  but  all  other  items  are  included  in  the  segment  where  they  originated.  Inter-company
transactions have been eliminated from the segment information and are not significant between segments.

Summarized  financial  information  of  our  reportable  segments  for  the  years  ended  December  31,  2020,  2019  and  2018  is  as
follows:

$s in thousands
Revenue
Depreciation, amortization and accretion
Capital expenditures
Total assets

$s in thousands
Revenue
Depreciation, amortization and accretion
Capital expenditures
Total assets

$s in thousands
Revenue
Depreciation, amortization and accretion
Capital expenditures
Total assets

Waste

Field

     Solutions      Services

2020
Energy
Waste

$ 425,413
$ 41,540
$ 31,027
$ 773,448

$ 473,754 $ 34,687
$ 43,465 $ 19,962
$ 16,149 $
6,189
$ 762,854 $ 231,475

Total
     Corporate     
933,854
— $
107,905
$
$
57,399
$ 1,831,283

$
2,938
$
$
4,034
$ 63,506

     Solutions      Services

Waste

$ 440,547
41,133
$
$
46,202
$ 755,566

Field

2019
Energy
Waste
12,560
$ 232,402 $
3,402
15,007 $
$
$
1,391
5,986 $
$ 865,540 $ 534,738

Total
     Corporate     
685,509
— $
61,302
$
$
58,100
$ 2,231,244

$
$ 1,760
$ 4,521
$ 75,400

Waste

Field

2018
Energy

     Solutions      Services Waste      Corporate     

Total

$ 400,678
35,195
$
$
31,735
$ 701,267

$ 165,250 $ — $
6,304 $ — $ 1,060
$
$
7,430 $ — $ 1,592
$ 169,066 $ — $ 77,565

— $ 565,928
42,559
$
$
40,757
$ 947,898

Management uses Adjusted EBITDA as a financial measure to assess segment performance. Adjusted EBITDA is defined as net
(loss)  income  before  interest  expense,  interest  income,  income  tax  expense,  depreciation,  amortization,  share-based
compensation,  accretion  of  closure  and  post-closure  liabilities,  foreign  currency  gain/loss,  non-cash  property  and  equipment
impairment charges, non-cash goodwill and intangible asset impairment charges, gain on property insurance recoveries, business
development  and  integration  expenses  and  other  income/expense.  Adjusted  EBITDA  is  a  complement  to  results  provided  in
accordance with GAAP and we believe that such information provides additional useful information to analysts, stockholders and
other users to understand the Company’s operating performance. Since Adjusted EBITDA is not a measurement determined in
accordance with GAAP and is thus susceptible to varying calculations, Adjusted EBITDA as presented may not be comparable to
other similarly titled measures of other companies. Items excluded from

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Adjusted  EBITDA  are  significant  components  in  understanding  and  assessing  our  financial  performance.  Adjusted  EBITDA
should  not  be  considered  in  isolation  or  as  an  alternative  to,  or  substitute  for,  net  (loss)  income,  cash  flows  generated  by
operations, investing or financing activities, or other financial statement data presented in the consolidated financial statements as
indicators  of  financial  performance  or  liquidity.  Adjusted  EBITDA  has  limitations  as  an  analytical  tool  and  should  not  be
considered in isolation or a substitute for analyzing our results as reported under GAAP. Some of the limitations are:

● Adjusted EBITDA does not reflect changes in, or cash requirements for, our working capital needs;

● Adjusted  EBITDA  does  not  reflect  our  interest  expense,  or  the  requirements  necessary  to  service  interest  or  principal

payments on our debt;

● Adjusted EBITDA does not reflect our income tax expenses or the cash requirements to pay our taxes;

● Adjusted  EBITDA  does  not  reflect  our  cash  expenditures  or  future  requirements  for  capital  expenditures  or  contractual

commitments;

● Although depreciation and amortization charges are non-cash charges, the assets being depreciated and amortized will often
have to be replaced in the future, and Adjusted EBITDA does not reflect any cash requirements for such replacements; and

● Adjusted EBITDA does not reflect our business development and integration expenses.

A reconciliation of Net (loss) income to Adjusted EBITDA for the years ended December 31, 2020, 2019 and 2018 is as follows:

$s in thousands
Net (loss) income

Income tax (benefit) expense
Interest expense
Interest income
Foreign currency loss (gain)
Other income
Property and equipment impairment charges
Goodwill and intangible asset impairment charges
Depreciation and amortization of plant and equipment
Amortization of intangible assets
Share-based compensation
Accretion and non-cash adjustment of closure & post-closure liabilities
Gain on property insurance recoveries
Business development and integration expenses

Adjusted EBITDA

2020

$ (389,359) $
(4,242)
32,595
(258)
1,134
(788)
—
404,900
66,561
37,344
6,651
4,000
—
11,621
$ 170,159

2019
33,140
16,659
19,239
(605)
733
(455)
25
—
41,423
15,491
5,544
4,388
(12,366)
26,150
$ 149,366

$

2018
49,595
15,263
12,130
(215)
(55)
(2,630)
—
3,666
29,207
9,645
4,366
3,707
(347)
748
$ 125,080

Adjusted EBITDA, by reportable segment, for the years ended December 31, 2020, 2019 and 2018 is as follows:

$s in thousands

Waste Solutions
Field Services
Energy Waste
Corporate

Total

2020

  $ 174,385
69,869
1,157
(75,252)
  $ 170,159

2019
$ 184,133
26,707
3,626
(65,100)
$ 149,366

2018
$ 160,179
18,457
—
(53,556)
$ 125,080

138

    
    
    
    
    
 
 
 
 
 
 
 
 
Table of Contents

Property and Equipment and Intangible Assets Outside of the United States

We provide services primarily in the United States, Canada and the EMEA region. Long-lived assets, comprised of property and
equipment and intangible assets net of accumulated depreciation and amortization, by geographic location as of December 31,
2020 and 2019 are as follows:

$s in thousands
United States
Canada
EMEA
Other (1)

Total long-lived assets

2020
$ 882,639
68,623
18,042
11,321
$ 980,625

$

2019
954,102
70,691
23,587
5,290
$ 1,053,670

(1)

Includes Mexico, Asia Pacific, and Latin America and Caribbean geographical regions.

ITEM  9.    CHANGES  IN  AND  DISAGREEMENTS  WITH  ACCOUNTANTS  ON  ACCOUNTING  AND  FINANCIAL
DISCLOSURE

None

ITEM 9A.  CONTROLS AND PROCEDURES

An evaluation was performed under the supervision and with the participation of the Company’s management, including both the
Chief Executive Officer and Chief Financial Officer, of the effectiveness of the Company’s disclosure controls and procedures, as
such  term  is  defined  under  Rule  13a-15e  under  the  Securities  Exchange  Act  of  1934,  as  amended  (the  “Exchange  Act”)  as  of
December 31, 2020. Based on that evaluation, the Company’s management, including the Chief Executive and Chief Financial
Officer,  concluded  that  the  Company’s  disclosure  controls  and  procedures  are  effective  to  provide  reasonable  assurance  that
information  required  to  be  disclosed  by  the  Company  in  reports  that  it  files  or  submits  under  the  Exchange  Act  is  recorded,
processed,  summarized  and  reported  as  specified  in  SEC  rules  and  forms  and  that  such  information  is  accumulated  and
communicated  to  the  Company’s  management,  including  the  Chief  Executive  Officer  and  Chief  Financial  Officer,  or  persons
performing similar functions, as appropriate to allow timely decisions regarding required disclosure.

There were no changes in the Company’s internal control over financial reporting identified in connection with the evaluation of
such controls that occurred during the Company’s most recent fiscal quarter that has materially affected, or is reasonably likely to
materially affect, the Company’s internal control over financial reporting.

Management’s Annual Report on Internal Controls over Financial Reporting.

Management is responsible for and maintains a system of internal controls over financial reporting  that is designed to provide
reasonable assurance that its records and filings accurately reflect the transactions engaged in Section 404 of Sarbanes-Oxley Act
of  2002  and  related  rules  issued  by  the  SEC  requiring  management  to  issue  a  report  on  its  internal  controls  over  financial
reporting.

There  are  inherent  limitations  in  the  effectiveness  of  any  internal  control,  including  the  possibility  of  human  error  and  the
circumvention or overriding of controls. Accordingly, even effective internal control can provide only reasonable assurance with
respect to financial statement preparation. Further, because of changes in conditions, the effectiveness of internal controls may
vary over time.

Management  has  conducted  an  assessment  of  its  internal  controls  over  financial  reporting  as  of  December  31,  2020  based  on
criteria  established  in  Internal  Control—Integrated  Framework  (2013)  issued  by  the  Committee  of  Sponsoring  Organizations
(“COSO”) of the Treadway Commission. Based on this assessment, management concluded that our internal

139

    
 
 
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controls over financial reporting were effective to provide reasonable assurance regarding the reliability of financial reporting.

Our independent  registered  public  accounting  firm,  Deloitte  and  Touche  LLP, has  audited  the  effectiveness  of  internal  control
over financial  reporting  as of December  31, 2020, as stated in their report,  which is included  in Part II, Item 8 of this Annual
Report on Form 10-K.

ITEM 9B.  OTHER INFORMATION

None

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Table of Contents

ITEM 10.  DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

PART III

The information regarding directors and nominees for directors of the Company, including identification of the members of the
audit committee and audit committee financial expert, will be included in the Company’s definitive proxy statement for use in
connection with the 2021 Annual Meeting of Stockholders (the “Proxy Statement”) to be filed within 120 days after the end of
the Company’s fiscal year ended December 31, 2020. The information contained under these headings is incorporated herein by
reference. Information regarding the executive officers of the Company is included in this Annual Report on Form 10-K under
Item 1 of Part I as permitted by Instruction 3 to Item 401(b) of Regulation S-K.

We have adopted a code of ethics that applies to our Chief Executive Officer and Chief Financial Officer. This code of ethics is
available on our Web site at www.usecology.com. If we make any amendments to this code other than technical, administrative or
other non-substantive amendments, or grant any waivers, including implicit waivers, from a provision of this code to our Chief
Executive Officer or Chief Financial Officer, we will disclose the nature of the amendment or waiver, its effective date and to
whom it applies in a report filed with the SEC.

ITEM 11.  EXECUTIVE COMPENSATION

Information  concerning  executive  and  director  compensation  is  presented  under  the  heading  “Compensation  Discussion  and
Analysis” in the Proxy Statement. The information contained under these headings is incorporated herein by reference.

ITEM  12.    SECURITY  OWNERSHIP  OF  CERTAIN  BENEFICAL  OWNERS  AND  MANAGEMENT  AND  RELATED
STOCKHOLDER MATTERS

Information  with  respect  to  security  ownership  of  certain  beneficial  owners  and  management  is  set  forth  under  the  heading
“Security  Ownership  of  Certain  Beneficial  Owners  and  Directors  and  Officers”  in  the  Proxy  Statement.  The  information
contained under these headings is incorporated herein by reference.

The following table provides information as of December 31, 2020, about the common stock that has been issued under all of our
equity compensation plans, including the Omnibus Plan and the 2008 Stock Option Plan. All of these plans have been approved
by  our  stockholders.  The  Omnibus  Plan,  approved  in  May  2015,  superseded  our  2008  Stock  Option  Plan,  and  the  2008  Stock
Option  Plan  remain  in  effect  solely  for  the  settlement  of  awards  granted  under  the  2008  Stock  Option  Plan.  The  number  of
securities remaining available for future issuance presented in column (c) in the table below represents securities available under
the Omnibus Plan only. No shares that are reserved but unissued under the 2008 Stock Option Plan or that are outstanding under
the  2008  Stock  Option  Plan  and  reacquired  by  the  Company  for  any  reason  will  be  available  for  issuance  under  the  Omnibus
Plan.

Equity compensation plans approved by security holders
Equity compensation plans not approved by security holders
Total

Number of securities
to be issued upon
exercise of
outstanding options,
warrants and rights
(a)(1)

Weighted‑‑average
exercise price of
outstanding options,
warrants and rights
(b)(2)

 663,112

$
 —  
$

 663,112

 49.93  
 —  
 49.93  

Number of securities
remaining available for
future issuance under
equity compensation
plans (excluding
securities reflected in
column (a))
(c)

 550,673
 —
 550,673

(1)

Includes  220,009  shares  of  unvested  restricted  stock  and  restricted  stock  unit  awards  and  86,070  performance  stock  unit
awards outstanding under the Omnibus Plan.

(2) The  weighted-average  exercise  price  does  not  take  into  account  the  shares  issuable  upon  vesting  of  outstanding  restricted

stock, restricted stock unit and performance stock unit awards, which have no exercise price.

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Table of Contents

ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

Information concerning related transactions is presented under the heading “Certain Relationships and Related Transactions” in
the Proxy Statement. The information contained under this heading is incorporated herein by reference.

ITEM 14.  PRINCIPAL ACCOUNTING FEES AND SERVICES

Information  concerning  principal  accounting  fees  and  services  is  presented  under  the  heading  “Ratification  of  Appointment  of
Independent  Registered  Public  Accounting  Firm”  in  the  Proxy  Statement.  The  information  contained  under  this  heading  is
incorporated herein by reference.

ITEM 15.  EXHIBITS, FINANCIAL STATEMENTS AND SCHEDULES

(a)

The following documents are filed as part of this report:

PART IV

1) Consolidated  Financial  Statements:  See  Index  to  Consolidated  Financial  Statements  at  Item  8  of  this  Annual

Report.

2) Financial  Statement  Schedules.  Schedules  have  been  omitted  because  they  are  not  required  or  because  the

information is included in the financial statements at Item 8 of this Annual Report.

3) Exhibits  are  incorporated  herein  by  reference  or  are  filed  with  this  Annual  Report  as  set  forth  in  the  Index  to

Exhibits on page 134 hereof.

ITEM 16.  FORM 10-K SUMMARY

None

142

Table of Contents

Index to Exhibits

Exhibit 
No.

2.1

3.1

3.2
4.1

4.2
10.1

10.2

10.3

10.4

10.5

10.6

10.7
10.8

10.9

Description

Agreement and Plan of Merger, dated as of June 23, 2019, by
and among US Ecology, Inc., NRC Group Holdings Corp., US
Ecology Parent, Inc., Rooster Merger Sub, Inc. and ECOL
Merger Sub, Inc.
Amended and Restated Certificate of Incorporation of US
Ecology, Inc.
Amended and Restated Bylaws of US Ecology, Inc.
Assignment, Assumption and Amendment to the Warrant
Agreement, dated as of November 1, 2019, by and between US
Ecology, Inc., American Stock Transfer & Trust Company,
LLC, NRC Group Holdings Corp. and Continental Stock
Transfer & Trust Company.
Description of Securities
Investor Agreement, dated June 23, 2019, by and among US
Ecology, Inc., US Ecology Parent, Inc., JFL-NRC-SES Partners,
LLC, JFL-NRC Holdings III, LLC, JFL-NRC Holdings IV, LLC
and solely with respect to Section 4 thereof, NRC Group
Holdings Corp.
Registration Rights Agreement, dated June 23, 2019, by and
among US Ecology, Inc., US Ecology Parent, Inc., JFL-NRC-
SES Partners, LLC, JFL-NRC Holdings III, LLC and JFL-NRC
Holdings IV, LLC
Sublease, dated July 27, 2005, between the State of Washington
and US Ecology Washington, Inc.
Lease Agreement as amended between American Ecology
Corporation and the State of Nevada
*Amended and Restated US Ecology, Inc. 2008 Stock Option
Incentive Plan
*Amended and Restated US Ecology Inc. Omnibus Incentive
Plan
*US Ecology, Inc. Nonqualified Deferred Compensation Plan
*Amended and Restated US Ecology, Inc. 2018 Equity and
Incentive Compensation Plan
*Form of Performance Stock Unit Award Agreement

10.10

*Form of Restricted Stock Award Agreement

     Company Form+     
Predecessor US
Ecology

Incorporated by Reference from 
Registrant’s

Form 8-K filed 6-24-2019

US Ecology, Inc. Form 8-K filed 11-1-2019

US Ecology, Inc.
US Ecology, Inc. Form 8-K filed 11-1-2019

US Ecology, Inc.
Predecessor US
Ecology

Form 8-K filed 6-24-2019

Predecessor US
Ecology

Form 8-K filed 6-24-2019

Form 8-K filed 7-27-2005

Predecessor US
Ecology
2 Qtr 2007 Form 10-Q filed 8-
Predecessor US
Ecology
7-2007
US Ecology, Inc. Form S-8 filed 11-1-2019

US Ecology, Inc.

US Ecology, Inc. Form S-8 filed 1-7-2020
US Ecology, Inc. Form S-8 filed 11-1-2019

Predecessor US
Ecology
US Ecology, Inc. 1st Qtr 2020 Form 10-Q filed 5-

1st Qtr 2019 Form 10-Q filed 5-
6-2019

11-2020

10.11

*Form of Non-Statutory Stock Option Award Agreement

US Ecology, Inc. 1st Qtr 2020 Form 10-Q filed 5-

10.12

*Form of Incentive Stock Option Award Agreement

US Ecology, Inc. 1st Qtr 2020 Form 10-Q filed 5-

11-2020

10.13

*Amended and Restated Executive Employment Agreement,
dated December 22, 2020, between the Company and Jeffrey R.
Feeler

US Ecology, Inc.

11-2020

143

    
Table of Contents

Exhibit 
No.
10.14

10.15

10.16

10.17

10.18

10.19

10.19

Description

*Amended and Restated Executive Employment Agreement,
effective December 22, 2020, between the Company and Eric L.
Gerratt
*Amended and Restated Executive Employment Agreement,
effective December 22, 2020, between the Company and Steven
D. Welling
*Amended and Restated Executive Employment Agreement,
effective December 22, 2020, between the Company and Simon
G. Bell
*Form of Indemnification Agreement between US Ecology, Inc.
and each of the Company’s Directors and Officers

*Amended and Restated Executive Employment Agreement,
effective December 22, 2020, between the Company and
Andrew P. Marshall
Credit Agreement, dated April 18, 2017, by and among US
Ecology, Inc., the lenders referred to therein, Wells Fargo
Bank, National Association, as administrative agent, Bank of
America, N.A., as issuing lender, Wells Fargo Securities, LLC
and Merrill Lynch, Pierce, Fenner & Smith Incorporated, as joint
lead arrangers and joint bookrunners, Bank of America, N.A., as
syndication agent and Bank of Montreal, PNC Bank, National
Association and US Bank National Association, as co-
documentation agents
First Amendment, dated as of August 6, 2019, by and among US
Ecology, Inc., certain subsidiary guarantors, each consenting
lender and Wells Fargo Bank, National Association, as lender
and administrative agent, to the Credit Agreement, dated April
18, 2017, by and among US Ecology, Inc., the lenders referred
to therein, Wells Fargo Bank, National Association, as
administrative agent, Bank of America, N.A., as issuing lender,
Wells Fargo Securities, LLC and Merrill Lynch, Pierce, Fenner
& Smith Incorporated, as joint lead arrangers and joint
bookrunners, Bank of America, N.A., as syndication agent and
Bank of Montreal, PNC Bank, National Association and US
Bank National Association, as co-documentation agents

144

     Company Form+     
US Ecology, Inc.

Incorporated by Reference from 
Registrant’s

US Ecology, Inc.

US Ecology, Inc.

Predecessor US
Ecology

US Ecology, Inc.

Form 8

K filed 11

12

2014

-

-

-

Predecessor US
Ecology

Form 8-K filed 4-20-2017

Predecessor US
Ecology

Form 8-K filed 8-9-2019

    
Description

     Company Form+     

Incorporated by Reference from 
Registrant’s

US Ecology, Inc. Form 8-K filed 11-1-2019

Table of Contents

Exhibit 
No.
10.20

10.21

10.22

21
23.1
31.1

31.2

32.1

32.2

101

104

Second Amendment, dated as of November 1, 2019, by and
among US Ecology Holdings, Inc., certain subsidiary
guarantors, each consenting lender and Wells Fargo Bank,
National Association, as lender and administrative agent to the
Credit Agreement, dated April 18, 2017, by and among US
Ecology, Inc., the lenders referred to therein, Wells Fargo Bank,
National Association, as administrative agent, Bank of America,
N.A., as issuing lender, Wells Fargo Securities, LLC and Merrill
Lynch, Pierce, Fenner & Smith Incorporated, as joint lead
arrangers and joint bookrunners, Bank of America, N.A., as
syndication agent and Bank of Montreal, PNC Bank, National
Association and US Bank National Association, as co-
documentation agents
Third Amendment, dated as of June 26, 2020, by and among US
Ecology Holdings, Inc., US Ecology, Inc., certain subsidiary
guarantors, each consenting lender and Wells Fargo Bank,
National Association, as lender and administrative agent
*US Ecology, Inc. 2019 Management Incentive Plan (Executive) Predecessor US

List of Subsidiaries
Consent of Deloitte and Touche LLP
Certifications of December 31, 2020 Form 10-K by Chief
Executive Officer, dated February 26, 2021
Certifications of December 31, 2020 Form 10-K by Chief
Financial Officer, dated February 26, 2021
Certifications of December 31, 2020 Form 10-K by Chief
Executive Officer, dated February 26, 2021
Certifications of December 31, 2020 Form 10-K by Chief
Financial Officer, dated February 26, 2021
The following materials from the Annual Report on Form 10-K
of US Ecology, Inc. for the fiscal year ended December 31, 2020
formatted in Extensible Business Reporting Language (Inline
XBRL): (i) Consolidated Balance Sheets, (ii) Consolidated
Statements of Operations, (iii) Consolidated Statements of
Comprehensive Income, (iv) Consolidated Statements of Cash
Flows, (v) Consolidated Statements of Stockholders’ Equity, and
(vi) Notes to the Consolidated Financial Statements
The cover page from the Company’s Annual Report on Form
10-K for the year ended December 31, 2020, formatted in Inline
XBRL

Ecology
US Ecology, Inc.
US Ecology, Inc.
US Ecology, Inc.

US Ecology, Inc.

US Ecology, Inc.

US Ecology, Inc.

US Ecology, Inc.

US Ecology, Inc.

US Ecology, Inc. Form 8-K filed 6-29-2010

1st Qtr 2019 Form 10-Q filed 5-
6-2019

+ Company Forms include filings by US Ecology, Inc. and US Ecology Holdings, Inc. (f/k/a US Ecology, Inc.) (“Predecessor

US Ecology”).

*

Identifies management contracts or compensatory plans or arrangements required to be filed as an exhibit hereto.

145

    
Table of Contents

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this
report to be signed on its behalf by the undersigned, thereunto duly authorized.

Signatures

US ECOLOGY, INC.

By:

/s/ ERIC L. GERRATT
Eric L. Gerratt
Executive Vice President, Chief Financial Officer and
Treasurer

Date: February 26, 2021

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons
on behalf of the registrant and in the capacities indicated as of February 26, 2021.

/s/ JEFFREY R. FEELER
Jeffrey R. Feeler
(Director) President and Chief Executive Officer

    /s/ ERIC L. GERRATT

Eric L. Gerratt
Executive Vice President, Chief Financial Officer and
Treasurer (Principal Financial Officer and Principal
Accounting Officer)

/s/ SIMON G. BELL
Simon G. Bell
Executive Vice President and Chief Operating Officer

/s/ STEVEN D. WELLING
Steven D. Welling
Executive Vice President of Sales and Marketing

/s/ ANDREW P. MARSHALL
Andrew P. Marshall
Executive Vice President of Regulatory Compliance & Safety

/s/ RONALD C. KEATING
Ronald C. Keating
(Director)

/s/ RICHARD BURKE
Richard Burke
(Director)

/s/ DANIEL FOX
Daniel Fox
(Director)

/s/ JOHN T. SAHLBERG
John Sahlberg
(Director)

/s/ MELANIE STEINER
Melanie Steiner
(Director)

/s/ RENAE CONLEY
Renae Conley
(Director)

/s/ KATINA DORTON
Katina Dorton
(Director)

/s/ GLENN A. EISENBERG
Glenn A. Eisenberg
(Director)

/s/ MACK L. HOGANS
Mack L. Hogans
(Director)

146

AMENDED AND RESTATED BYLAWS
(dated November 1, 2019 and restated to give effect to Amendment No. 1 dated January 15, 2021)

Exhibit 3.2

OF

US ECOLOGY, INC.
(hereinafter called the “Corporation”)

ARTICLE I
OFFICES

Section 1. Registered Office. The registered office of the Corporation shall be in the City of Wilmington, County of New Castle, State

of Delaware.

Section 2. Other Offices. The Corporation may also have offices at such other places both within and without the State of Delaware as

the Board of Directors may from time to time determine.

ARTICLE II
MEETING OF STOCKHOLDERS

Section 1. Place of Meetings. Meetings of the stockholders for the election of directors or for any other purpose shall be held at such
time and place, either within or without the State of Delaware, as shall be designated from time to time by the Board of Directors and stated in
the notice of the meeting or in a duly executed waiver of notice thereof.

Section 2. Annual Meetings.

(a)

A meeting of stockholders for the election of directors and such other business as may be properly brought before
the  meeting  in  accordance  with  these  Bylaws  shall  be  held  annually  at  such  date  and  time  as  may  be  designated  by  the  Board  of
Directors from time to time.

(b)

At an annual meeting of the stockholders, only business (other than business relating to the nomination of directors
which is governed by Article III, Section 12) that has been properly brought before the stockholder meeting in accordance with the
procedures set forth in this Article II, Section 2 shall  be  conducted.  To be  properly  brought  before  a meeting  of  stockholders,  such
business must be brought before the meeting (i) by or at the direction of the Board of Directors or any committee thereof or (ii) by a
stockholder who (A) was a stockholder of record of the Corporation when the notice required by this Article II, Section 2 is delivered
to the Secretary of the Corporation and at the time of the meeting, (B) is entitled to vote at the meeting and (c) complies with the notice
and other provisions of this Article II, Section 2. Subject to Article II, Section 2(l), and except with respect to nominations of directors,
which  are  governed  by  Article  III,  Section  12,  Article  II,  Section  2(b) is  the  exclusive  means  by  which  a  stockholder  may  bring
business before a meeting of stockholders. Any business brought before a meeting in accordance with Article II, Section 2 is referred
to as “Stockholder Business”.

(c)

Subject to Article II, Section 2(l), at any annual meeting of stockholders, all proposals of Stockholder Business must
be made by timely written notice given by or on behalf of a stockholder of record of the Corporation (the “Notice of Business”) and
must otherwise be a proper matter for stockholder action. To be timely, the Notice of Business must be delivered personally or mailed
to, and received at the executive office of the Corporation, addressed to the Secretary of the Corporation, by no earlier than 120 days
and no later than 90 days before the first anniversary of the date of the prior year’s annual meeting of stockholders; provided, however,
that  if  (i)  the  annual  meeting  of  stockholders  is  advanced  by  more  than  30  days,  or  delayed  by  more  than  60  days,  from  the  first
anniversary of the prior year’s annual meeting of stockholders or (ii) no annual meeting was held during the prior year, the notice by
the stockholder to be

1

timely must be received (A) no earlier than 120 days before such annual meeting and (B) no later than the later of 90 days before such
annual  meeting  and  the  tenth  day  after  the  day  on  which  the  notice  of  such  annual  meeting  was  first  made  by  mail  or  Public
Disclosure.  In  no  event  shall  an  adjournment,  postponement  or  deferral,  or  Public  Disclosure  of  an  adjournment,  postponement  or
deferral, of a stockholder meeting commence a new time period (or extend any existing time period) for the giving of the Notice of
Business.

(d)

The Notice of Business must set forth:

i.

the  name  and  record  address  of  each  stockholder  proposing  Stockholder  Business  (the  “Proponent”), as

they appear on the Corporation’s books;

ii.

the name and address of any Stockholder Associated Person;

iii.

as to each Proponent and any Stockholder Associated Person, (A) the class or series and number of shares
of stock directly or indirectly held of record and beneficially owned by the Proponent or Stockholder Associated Person, (B)
the date such shares of stock were acquired, (C) a description of any agreement, arrangement or understanding (whether oral
or  in  writing),  direct  or  indirect,  between  or  among  the  Proponent,  any  Stockholder  Associated  Person  or  any  others
(including their names) acting in concert with any of the foregoing, (D) any material pending or threatened legal proceeding
in which such Proponent or Stockholder Associated Person is a party or material participant involving the Corporation or any
of its officers or directors, (E) any other material relationship between the Proponent or any Stockholder Associated Person,
on the one hand, and the Corporation or any affiliate of the Corporation, on the other hand, (F) any direct or indirect material
interest in any contract or agreement of such Proponent or any Stockholder Associated Person with the Corporation or any
affiliate  of  the  Corporation  (including,  without  limitation,  any  employment  agreement,  collective  bargaining  agreement  or
consulting agreement), (G) a description of any agreement, arrangement or understanding (including any derivative or short
positions, profit interests, options, hedging transactions and borrowed or loaned shares) that has been entered into, directly or
indirectly, by the Proponent or any Stockholder Associated Person and that remains in effect, the effect or intent of which is
to  mitigate  loss  to,  manage  risk  or  benefit  of  share  price  changes  for,  or  increase  or  decrease  the  voting  power  of  the
Proponent  or  any  Stockholder  Associated  Person  with  respect  to  shares  of  stock  of  the  Corporation,  (H)  a  description  in
reasonable  detail  of  any  proxy  (including  revocable  proxies),  contract,  arrangement,  understanding  or  other  relationship
pursuant  to  which  the  Proponent  or  any  Stockholder  Associated  Person  has  a  right  to  vote  any  shares  of  stock  of  the
Corporation,  and  (I)  any  other  information  relating  to  such  Proponent  or  Stockholder  Associated  Person  that  would  be
required to be disclosed in a proxy statement or other filing required to be made in connection with solicitations of proxies or
consents by such Proponent or Stockholder Associated Person in support of the Stockholder Business proposed to be brought
before the meeting pursuant to Section 14(a) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). The
information specified in this Article II, Section 2(d)(i) to (iii) is referred to herein as “Stockholder Information”;

iv.

a representation that each Proponent is a holder of record of stock of the Corporation entitled to vote at the

meeting and intends to appear in person or by proxy at the meeting to propose such Stockholder Business;

v.

a brief description of the Stockholder Business desired to be brought before the annual meeting, the text of
the  proposal  (including  the  text  of  any  resolutions  proposed  for  consideration  and,  if  such  business  includes  a  proposal  to
amend these Bylaws, the language of the proposed amendment) and the reasons for conducting such Stockholder Business at
the meeting;

vi.

any  material  interest  of  each  Proponent  and  any  Stockholder  Associated  Person  in  such  Stockholder

Business;

vii.

a representation as to whether the Proponent intends (A) to deliver a proxy statement and form of proxy to

holders of at least the percentage of the Corporation’s outstanding

2

capital stock required to approve or adopt such Stockholder Business or (B) otherwise to solicit proxies from stockholders in
support of such Stockholder Business;

viii.

all other information that would be required to be filed with the U.S. Securities and Exchange Commission
(“SEC”) if the Proponents or Stockholder Associated Persons were participants in a solicitation subject to Section 14 of the
Exchange Act; and

ix.
Corporation.

a  representation  that  the  Proponents  shall  provide  any  other  information  reasonably  requested  by  the

(e)

The Proponents shall also provide any other information reasonably requested from time to time by the Corporation

within ten business days after each such request.

(f)

In addition, the Proponent shall affirm as true and correct the information provided to the Corporation in the Notice
of Business or at the Corporation’s request pursuant to Article II, Section 2(e) (and shall update or supplement such information as
needed so that such information shall be true and correct) as of (i) the record date for the meeting, (ii) the date that is ten calendar days
before the first anniversary date of the Corporation’s proxy statement released to stockholders in connection with the previous year’s
annual meeting and (iii) the date that is ten business days before the meeting and, if applicable, before reconvening any adjournment or
postponement  thereof.  Such  affirmation,  update  and/or  supplement  must  be  delivered  personally  or  mailed  to,  and  received  at  the
executive  office  of  the  Corporation,  addressed  to  the  Secretary  of  the  Corporation,  by  no  later  than  (x)  five  business  days  after  the
applicable  date  specified  in  clause  (i)  or  (ii)  of  the  foregoing  sentence  (in  the  case  of  the  affirmation,  update  and/or  supplement
required to be made as of those dates), and (y) not later than seven business days before the date for the meeting (in the case of the
affirmation, update and/or supplement required to be made as of ten business days before the meeting or reconvening any adjournment
or postponement thereof).

(g)

The person presiding over the meeting shall, if the facts warrant, determine and declare to the meeting, that business
was not properly brought before the meeting in accordance with the procedures set forth in this Article II, Section 2. Notwithstanding
anything in these Bylaws to the contrary, any such business not properly brought before the meeting shall not be transacted.

(h)

If the Proponent (or a qualified representative of the Proponent) does not appear at the meeting of stockholders to
present the Stockholder Business, such business shall not be transacted, notwithstanding that proxies in respect of such vote may have
been  received  by  the  Corporation.  For  purposes  of  this  Article  II,  Section  2,  to  be  considered  a  qualified  representative  of  the
Proponent,  a  person  must  be  a  duly  authorized  officer,  manager  or  partner  of  such  stockholder  or  must  be  authorized  by  a  writing
executed by such stockholder or an electronic transmission delivered by such stockholder to act for such stockholder as proxy at the
meeting of stockholders and such person must produce such writing or electronic transmission, or a reliable reproduction of the writing
or electronic transmission, at the meeting of stockholders.

(i)

“Public Disclosure”  of  any  date  or  other  information  means  disclosure  thereof  by  a  press  release  reported  by  the
Dow  Jones  News  Services,  Associated  Press  or  comparable  U.S.  national  news  service  or  in  a  document  publicly  filed  by  the
Corporation with the SEC pursuant to Sections 13, 14 or 15(d) of the Exchange Act.

(j)

“Stockholder Associated Person” means with respect to any stockholder, (i) any other beneficial owner of stock of
the Corporation that is owned by such stockholder and (ii) any person that directly, or indirectly through one or more intermediaries,
controls, or is controlled by, or is under common control with, the stockholder or such beneficial owner.

(k)

“Control,”  including  the  terms  “controlling,”  “controlled  by”  and  “under  common  control  with,”  means  the
possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of a person, whether
through the ownership of voting stock, by contract, or otherwise. A person who is the owner of 20% or more of the outstanding voting
stock of a corporation,

3

partnership, unincorporated association or other entity shall be presumed to have control of such entity, in the absence of proof by a
preponderance of the evidence to the contrary.

(l)

The notice requirements of this Article II, Section 2 shall be deemed satisfied with respect to stockholder proposals
that  have  been  properly  brought  under  Rule  14a-8  of  the  Exchange  Act  and  that  are  included  in  a  proxy  statement  that  has  been
prepared by the Corporation to solicit proxies for such annual meeting.

Section 3. Special Meetings. Special meetings of the stockholders, for any purpose or purposes prescribed in the notice of the meeting,

may be called by the Board of Directors pursuant to a resolution adopted by a majority of the directors then in office, and shall be held at such
place, on such date, and at such time as the resolution shall fix. Business transacted at any special meeting of stockholders shall be limited to the
purposes stated in the notice of the meeting.

Section 4. Notice of Meetings. Written notice of the place, date, and time of all meetings of the stockholders shall be given, not less

than ten (10) nor more than sixty (60) days before the date on which the meeting is to be held, to each stockholder entitled to vote at such
meeting, except as otherwise provided herein or as required from time to time by the Delaware General Corporation Law or the Certificate of
Incorporation.

Section 5. Quorum; Adjournment. At any meeting of the stockholders, the holders of a majority of all of the shares of the stock entitled

to vote at the meeting, present in person or by proxy, shall constitute a quorum for all purposes, unless or except to the extent that the presence
of a larger number may be required by law or the Certificate of Incorporation. If a quorum shall fail to attend any meeting, the chairman of the
meeting or the holders of a majority of the shares of stock entitled to vote who are present, in person or by proxy, may adjourn the meeting to
another place, date, or time without notice other than announcement at the meeting, until a quorum shall be present or represented.

When a meeting is adjourned to another place, date or time, written notice need not be given of the adjourned meeting if the place, date

and time thereof are announced at the meeting at which the adjournment is taken; provided, however, that if the date of any adjourned meeting
is more than thirty (30) days after the date for which the meeting was originally noticed, or if a new record date is fixed for the adjourned
meeting, written notice of the place, date, and time of the adjourned meeting shall be given in conformity herewith. At any adjourned meeting,
any business may be transacted which might have been transacted at the original meeting.

Section 6. Proxies and Voting. At any meeting of the stockholders, every stockholder entitled to vote may vote in person or by proxy

authorized by an instrument in writing filed in accordance with the procedure established for the meeting.

Each stockholder shall have one vote for every share of stock entitled to vote which is registered in his name on the record date for the

meeting, except as otherwise provided herein or required by law or the Certificate of Incorporation.

All voting, except where otherwise provided herein or required by law or the Certificate of Incorporation, may be by a voice vote;

provided, however, that upon demand therefor by a stockholder entitled to vote or such stockholder’s proxy, a stock vote shall be taken. Every
stock vote shall be taken by ballots, each of which shall state the name of the stockholder or proxy voting and such other information as may be
required under the procedure established for the meeting. Every vote taken by ballots shall be counted by an inspector or inspectors appointed
by the chairman of the meeting.

Except as otherwise required by law or the Certificate of Incorporation, all matters shall be determined by a majority of the votes cast.

Section 7. Stock List. A complete list of stockholders entitled to vote at any meeting of stockholders, arranged in alphabetical order for

each class of stock and showing the address of each such stockholder and the

4

number of shares registered in such stockholder’s name, shall be open to the examination of any such stockholder, for any purpose germane to
the meeting, during ordinary business hours for a period of at least ten (10) days prior to the meeting, either at a place within the city where the
meeting is to be held, which place shall be specified in the notice of the meeting, or if not so specified, at the place where the meeting is to be
held.

The stock list shall also be kept at the place of the meeting during the whole time thereof and shall be open to the examination of any
such stockholder who is present. This list shall presumptively determine the identity of the stockholders entitled to vote at the meeting and the
number of shares held by each of them.

Section 8. Actions by Stockholders. Unless otherwise provided in the Certificate of Incorporation, any action required to be taken at
any annual or special meeting of stockholders of the Corporation, or any action which may be taken at any annual or special meeting of such
stockholders, may be taken without a meeting, without prior notice and without a vote, if a consent in writing, setting forth the action so taken,
shall be signed by the holders of outstanding stock having not less than the minimum number of votes that would be necessary to authorize or
take such action at a meeting at which all shares entitled to vote thereon were present and voted. Prompt notice of the taking of the corporate
action without a meeting by less than unanimous written consent shall be given to those stockholders who have not consented in writing.

Section 9. Record Date. In order that the Corporation may determine the stockholders entitled to consent to corporate action in writing

without a meeting, the Board of Directors may fix a record date, which record date shall not precede the date upon which the resolution fixing
the record date is adopted by the Board of Directors, and which date shall not be more than ten (10) days after the date upon which the
resolution fixing the record date is adopted by the Board of Directors. Any stockholder of record seeking to have the stockholders authorize or
take corporate action by written consent shall, by written notice to the Secretary, request the Board of Directors to fix a record date. The Board
of Directors shall promptly, but in all events within ten (10) days after the date on which such a request is received, adopt a resolution fixing the
record date. If no record date has been fixed by the Board of Directors within ten (10) days after the date on which such a request is received,
the record date for determining stockholders entitled to consent to corporate action in writing without a meeting, when no prior action by the
Board of Directors is required by applicable law, shall be the first date on which a signed written consent setting forth the action taken or
proposed to be taken is delivered to the Corporation by delivery to its registered office in the State of Delaware, its principal place of business,
or any officer or agent of the Corporation having custody of the book in which proceedings of stockholders meetings are recorded. Delivery
shall be by hand or by certified or registered mail, return receipt requested. If no record date has been fixed by the Board of Directors and prior
action by the Board of Directors is required by applicable law, the record date for determining stockholders entitled to consent to corporate
action in writing without a meeting shall be at the close of business on the date on which the Board of Directors adopts the resolution taking
such prior action.

In the event of the delivery to the Corporation of a written consent or consents purporting to authorize or take corporate action and/or

related revocations (each such written consent and related revocation is referred to in this paragraph as a “Consent”), the Secretary of the
Corporation shall provide for the safe-keeping of such Consent and shall conduct such reasonable investigation as he deems necessary or
appropriate for the purpose of ascertaining the validity of such consent and all matters incident thereto, including, without limitation, whether
stockholders having the requisite voting power to authorize or take the action specified in the Consent have given consent; provided, however,
that if the corporate action to which the Consent relates is the removal or replacement of one or more members of the Board of Directors, the
Secretary of the Corporation shall designate two persons, who shall not be members of the Board of Directors or officers or employees of the
Corporation, to serve as Inspectors with respect to such Consent and such Inspectors shall discharge the functions of the Secretary of the
Corporation under this paragraph. If after such investigation the Secretary or the Inspectors (as the case may be) shall determine that the
Consent is valid, that fact shall be certified on the records of the Corporation for the purpose of recording the proceedings of meetings of the
stockholders, and the Consent shall be filed with such records, at which time the Consent shall become effective as stockholder action.

In conducting the investigation required by this Section 9, the Secretary or the Inspectors (as the case may be) may, but are not

required to (i) at the expense of the Company, retain any necessary or appropriate professional advisors, and such other personnel as they may
deem necessary or appropriate to assist them and (ii) allow any

5

officers and representatives of the Company, stockholders soliciting consents or revocations, and any other interested parties to propose
challenges and pose questions relating to the preliminary results of such investigation following the availability of such preliminary results.

ARTICLE III
BOARD OF DIRECTORS

Section 1. Duties and Powers. The business of the Corporation shall be managed by or under the direction of the Board of Directors

which may exercise all such powers of the Corporation and do all such lawful acts and things as are not by law or by the Certificate of
Incorporation or by these Bylaws directed or required to be exercised or done by the stockholders.

Section 2. Number and Term of Office. The Board of Directors shall consist of not less than five (5) nor more than twelve (12)

members. Such set number of directors or the limits herein set forth may be changed from time to time by resolution of the Board of Directors
or the stockholders, except as otherwise provided by law or the Certificate of Incorporation. Except as provided in Sections 3 and 4 of this
Article, directors shall be elected by the holders of record at Annual Meetings of Stockholders, and each director so elected shall hold office
until the next Annual Meeting and until his or her successor is duly elected and qualified, or until his or her earlier resignation or removal. Any
director may resign at any time upon written notice to the Corporation. Directors need not be stockholders.

Section 3. Chairman of the Board. The Board of Directors at its first meeting held after each Annual Meeting of Stockholders, or

thereafter, may designate one of its members as Chairman of the Board to serve for the ensuing year or until his successor is designated. The
Chairman of the Board, if any, shall preside at all meetings of the stockholders and the Board of Directors and shall have such other duties and
powers as may be prescribed by the Board of Directors from time to time.

Section 4. Vacancies. Vacancies and newly created directorships resulting from any increase in the authorized number of directors may
be filled by a majority of the directors then in office, although less than a quorum, or by a sole remaining director or by the stockholders entitled
to vote at any Annual or Special Meeting held in accordance with Article II, and the directors so chosen shall hold office until the next Annual
or Special Meeting duly called for that purpose and until their successors are duly elected and qualified, or until their earlier resignation or
removal.

Section 5. Meetings. The Board of Directors of the Corporation may hold meetings, both regular and special, either within or without
the State of Delaware. The first meeting of each newly-elected Board of Directors shall be held immediately following the Annual Meeting of
Stockholders and no notice of such meeting shall be necessary to be given the newly-elected directors in order legally to constitute the meeting,
provided a quorum shall be present. Regular meetings of the Board of Directors may be held without notice at such time and at such place as
may from time to time be determined by the Board of Directors. Special meetings of the Board of Directors may be called by the Chairman of
The Board, the Chief Executive Officer, the President or a majority of the directors then in office. Notice thereof stating the place, date and hour
of the meeting shall be given to each director either by mail not less than forty-eight (48) hours before the date of the meeting, by telephone,
telegram or telecopy on twenty-four (24) hours’ notice, or on such shorter notice as the person or persons calling such meeting may deem
necessary or appropriate in the circumstances. Meetings may be held at any time without notice if all the directors are present or if all those not
present waive such notice in accordance with Section 2 of the Article VI of these Bylaws.

Section 6. Quorum. Except as may be otherwise specifically provided by law, the Certificate of Incorporation or these Bylaws, at all

meetings of the Board of Directors, a majority of the directors then in office shall constitute a quorum for the transaction of business and the act
of a majority of the directors present at any meeting at which there is a quorum shall be the act of the Board of Directors. If a quorum shall not
be present at any meeting of the Board of Directors, the directors present thereat may adjourn the meeting from time to time, without notice
other than announcement at the meeting, until a quorum shall be present.

6

Section 7. Actions of Board Without a Meeting. Unless otherwise provided by the Certificate of Incorporation or these Bylaws, any

action required or permitted to be taken at any meeting of the Board of Directors or of any committee thereof may be taken without a meeting if
all members of the Board of Directors or committee, as the case may be, consent thereto in writing, and the writing or writings are filed with the
minutes of proceedings of the Board of Directors or committee.

Section 8. Meetings by Means of Conference Telephone. Unless otherwise provided by the Certificate of Incorporation or these

Bylaws, members of the Board of Directors of the Corporation, or any committee designated by the Board of Directors, may participate in a
meeting of the Board of Directors or such committee by means of a conference telephone or similar communications equipment by means of
which all persons participating in the meeting can hear each other, and participation in a meeting pursuant to this Section 8 shall constitute
presence in person at such meeting.

Section 9. Committees. The Board of Directors may, by resolution passed by a majority of the directors then in office, designate one or

more committees, each committee to consist of one or more of the directors of the Corporation. The Board of Directors may designate one or
more directors as alternate members of any committee, who may replace any absent or disqualified member at any meeting of any such
committee. In the absence or disqualification of a member of a committee, and in the absence of a designation by the Board of Directors of an
alternate member to replace the absent or disqualified member, the member or members thereof present at any meeting and not disqualified
from voting, whether or not such members constitute a quorum, may unanimously appoint another member of the Board of Directors to act at
the meeting in the place of any such absent or disqualified member. Any committee, to the extent allowed by law and provided in the Bylaws or
resolution establishing such committee, shall have and may exercise all the powers and authority of the Board of Directors in the management
of the business and affairs of the Corporation, and may authorize the seal of the Corporation to be affixed to all papers which may require it.
Each committee shall keep regular minutes and report to the Board of Directors when required.

Section 10. Compensation. Unless otherwise restricted by the Certificate of Incorporation or these Bylaws, the Board of Directors shall

have the authority to fix the compensation of directors. The directors may be paid their expenses, if any, of attendance at each meeting of the
Board of Directors and may be paid a fixed sum for attendance at each meeting of the Board of Directors or a stated salary as a director. The
directors may also be compensated in such other manner as determined by the Board of Directors. No such payment shall preclude any director
from serving the Corporation in any other capacity and receiving compensation therefor. Members of special or standing committees may be
allowed compensation for attending committee meetings as determined by the Board of Directors.

Section 11. Removal. Unless otherwise restricted by the Certificate of Incorporation or Bylaws, any director or the entire Board of

Directors may be removed, with or without cause, by the holders of a majority of shares entitled to vote at an election of directors.

Section 12. Nominations of Directors.

(a)

Subject to Article III, Section 12(k), only persons who are nominated in accordance with the procedures set forth in

this Article III, Section 12 are eligible for election as directors.

(b)

 Nominations of persons for election to the Board of Directors may only be made at a meeting properly called for the
election of directors and only (i) by or at the direction of the Board of Directors or any committee thereof or (ii) by a stockholder who
(A) was a stockholder of record of the Corporation when the notice required by this Article III, Section 12 is delivered to the Secretary
of the Corporation and at the time of the meeting, (B) is entitled to vote for the election of directors at the meeting and (C) complies
with the notice and other provisions of this Article III, Section 12. Subject to Article III, Section 12(k), Article III, Section 12(c) is the
exclusive  means  by  which  a  stockholder  may  nominate  a  person  for  election  to  the  Board  of  Directors.  Persons  nominated  in
accordance- with Article III, Section 12 are referred to as “Stockholder Nominees”. A stockholder nominating persons for election to
the Board of Directors is referred to as the “Nominating Stockholder”.

7

(c)

Subject to this Article III, Section 12(c), all nominations of Stockholder Nominees must be made by timely written
notice given by or on behalf of a stockholder of record of the Corporation (the “Notice of Nomination”). To be timely, the Notice of
Nomination  must  be  delivered  personally  or  mailed  to  and  received  at  the  executive  office  of  the  Corporation,  addressed  to  the
attention of the Secretary of the Corporation, by the following dates:

i.

 in the case of the nomination of a Stockholder Nominee for election to the Board of Directors at an annual
meeting  of  stockholders,  no  earlier  than  120  and  no  later  than  90 days  before  the  first  anniversary  of  the  date  of  the  prior
year’s annual meeting of stockholders; provided, however, that if (A) the annual meeting of stockholders is advanced by more
than 30 days, or delayed by more than 60 days, from the first anniversary of the prior year’s annual meeting of stockholders
or (B) no annual meeting was held during the prior year, the notice by the stockholder to be timely must be received (1) no
earlier than 120 days before such annual meeting and (2) no later than the later of 90 days before such annual meeting and the
tenth day after the day on which the notice of such annual meeting was first made by mail or Public Disclosure, and

ii.

in the case of the nomination of a Stockholder Nominee for election to the Board of Directors at a special
meeting of stockholders, no earlier than 120 days before and no later than the later of 90 days before such special meeting and
the tenth day after the day on which the notice of such special meeting was first made by mail or Public Disclosure.

(d)

Notwithstanding  anything  to  the  contrary,  if  the  number  of  directors  to  be  elected  to  the  Board  of  Directors  at  a
meeting  of  stockholders  is  increased  and  there  is  no  Public  Disclosure  by  the  Corporation  naming  the  nominees  for  the  additional
directorships at least 100 days before the first anniversary of the preceding year’s annual meeting, a Notice of Nomination shall also be
considered timely, but only with respect to nominees for the additional directorships, if it shall be delivered personally and received at
the  executive  office  of  the  Corporation,  addressed  to  the  attention  of  the  Secretary  of  the  Corporation,  no  later  than  the  close  of
business on the tenth day following the day on which such Public Disclosure is first made by the Corporation.

(e)

In no event shall an adjournment, postponement or deferral, or Public Disclosure of an adjournment, postponement
or deferral, of an annual or special meeting commence a new time period (or extend any time period) for the giving of the Notice of
Nomination.

(f) 

The Notice of Nomination shall set forth:

i.

 the  Stockholder  Information  with  respect  to  each  Nominating  Stockholder  and  Stockholder  Associated
Person (except that references to the “Proponent” in Article II, Section 2(d)(i) to (iii) shall instead refer to the “Nominating
Stockholder,” and the disclosure required by Article II, Section 2(d)(iii)(C) may be omitted, for purposes of this  Article III,
Section 12(f)(i));

ii.

a representation that each Nominating Stockholder is a holder of record of stock of the Corporation entitled

to vote at the meeting and intends to appear in person or by proxy at the meeting to propose such nomination;

iii.

a description of all direct and indirect compensation and other material monetary agreements, arrangements
and  understandings  during  the  past  three  years,  and  any  other  material  relationships,  between  or  among  a  Nominating
Stockholder, Stockholder Associated Person or their respective associates, or others acting in concert therewith, including all
information that would be required to be disclosed pursuant to Rule 404 promulgated under Regulation S-K if the Nominating
Stockholder, Stockholder Associated Person or any person acting in concert therewith, were the “registrant” for purposes of
such rule and the Stockholder Nominee were a director or executive of such registrant;

8

iv.

a representation as to whether the Nominating Stockholders intends (A) to deliver a proxy statement and
form  of  proxy  to  holders  of  at  least  the  percentage  of  the  Corporation’s  outstanding  capital  stock  required  to  approve  the
nomination or (B) otherwise to solicit proxies from stockholders in support of such nomination;

v.

all other information that would be required to be filed with the SEC if the Nominating Stockholders and

Stockholder Associated Person were participants in a solicitation subject to Section 14 of the Exchange Act;

vi.

a  representation  that  the  Nominating  Stockholders  shall  provide  any  other  information  reasonably

requested by the Corporation;

vii
serve if elected; and

the written consent of each Stockholder Nominee to being named in a proxy statement as a nominee and to

viii.

a completed and signed written questionnaire (in the form provided by the Secretary upon written request)
with respect to the background and qualification of such person and the background of any other person or entity on whose
behalf the nomination is being made.

(g)

The Nominating Stockholders shall also provide any other information reasonably requested from time to time by

the Corporation within ten business days after each such request.

(h)

In addition, the Nominating Stockholder shall affirm as true and correct the information provided to the Corporation
in the Notice of Nomination or at the Corporation’s request pursuant to Article III, Section 12(g) (and shall update or supplement such
information as needed so that such information shall be true and correct) as of (i) the record date for the meeting, (ii) the date that is
ten calendar days before the first anniversary date of the Corporation’s proxy statement released to stockholders in connection with the
previous year’s annual meeting (in the case of an annual meeting) or 50 days before the date of the meeting (in the case of a special
meeting) and (iii) the date that is ten business days before the date of the meeting or any adjournment or postponement thereof. Such
affirmation,  update  and/or  supplement  must  be  delivered  personally  or  mailed  to,  and  received  at  the  executive  office  of  the
Corporation, addressed to the Secretary of the Corporation, by no later than (1) five business days after the applicable date specified in
clause (i) or (ii) of the foregoing sentence (in the case of the affirmation, update and/or supplement required to be made as of those
dates),  and  (2)  not  later  than  seven  business  days  before  the  date  for  the  meeting  (in  the  case  of  the  affirmation,  update  and/or
supplement required to be made as of ten business days before the meeting or reconvening any adjournment or postponement thereof).

(i)

The  person  presiding  over  the  meeting  shall,  if  the  facts  warrant,  determine  and  declare  to  the  meeting,  that  the
nomination was not made in accordance with the procedures set forth in this Article III, Section 12. Any such defective nomination
shall be disregarded.

(j)

If the Nominating Stockholder (or a qualified representative of the Nominating Stockholder) does not appear at the
applicable  stockholder  meeting  to  nominate  the  Stockholder  Nominees,  such  nomination  shall  be  disregarded  and  such  Stockholder
Nominees shall not be qualified for election as Directors, notwithstanding that proxies in respect of such vote may have been received
by  the  Corporation.  For  purposes  of  this  Article  III,  Section  12,  to  be  considered  a  qualified  representative  of  the  Nominating
Stockholder, a person must be a duly authorized officer, manager or partner of such Nominating Stockholder or must be authorized by
a writing executed by such Nominating Stockholder or an electronic transmission delivered by such Nominating Stockholder to act for
such  Nominating  Stockholder  as  proxy  at  the  meeting  of  stockholders  and  such  person  must  produce  such  writing  or  electronic
transmission, or a reliable reproduction of the writing or electronic transmission, at the meeting of stockholders.

(k)

Nothing in this Article III, Section 12 shall be deemed to affect any rights of the holders of any series of preferred

stock of the Corporation pursuant to any applicable provision of the Certificate of Incorporation.

9

ARTICLE IV
OFFICERS

Section 1. General. The officers of the Corporation shall be appointed by the Board of Directors and may include a Chief Executive

Officer, a President, a Chief Financial Officer, one or more Vice Presidents, a Treasurer, and a Secretary. The Board of Directors may also
choose one or more assistant secretaries and assistant treasurers, and such other officers and agents as the Board of Directors, in its sole
discretion, shall deem necessary or appropriate from time to time. Any number of offices may be held by the same person, unless the Certificate
of Incorporation or these Bylaws otherwise provide.

Section 2. Election: Term of Office. The Board of Directors at its first meeting held after each Annual Meeting of Stockholders may

elect a Chief Executive Officer, a President, a Treasurer and a Secretary and may also elect at that meeting or any other meeting, such other
officers and agents as it shall deem necessary or appropriate. Each officer of the Corporation shall exercise such powers and perform such duties
as shall be determined from time to time by the Board of Directors together with the powers and duties customarily exercised by such officer;
and each officer of the Corporation shall hold office until such officer’s successor is elected and qualified or until such officer’s earlier
resignation or removal. Any officer may resign at any time upon written notice to the Corporation. The Board of Directors may at any time,
with or without cause, by the affirmative vote of a majority of directors then in office, remove any officer. Such removal shall be without
prejudice to and shall not diminish such officer’s contractual rights, if any.

Section 3. Chief Executive Officer. The Chief Executive Officer of the Corporation shall have general and active management of the

business of the Corporation and shall see that all orders and resolutions of the Board of Directors are carried into effect. Subject to the powers of
the Board of Directors, the Chief Executive Officer shall have general executive charge, management and control of the properties and
operations of the Corporation with all such powers with respect to such properties and operations as may be reasonably incident to such
responsibilities. The Chief Executive Officer shall possess the power to execute all bonds, mortgages, certificates, contracts and other
instruments except where the signing and execution thereof shall be expressly delegated by the Board of Directors to some other officer or agent
of the Corporation. The Chief Executive Officer shall have and exercise such further powers and duties as may be specifically delegated to or
vested in the Chief Executive Officer from time to time by these Bylaws or the Board of Directors. In the absence of the Chairman of the Board
or in the event of his inability or refusal to act, or if the Board has not designated a Chairman, the Chief Executive Officer shall perform the
duties of the Chairman of the Board, and when so acting, shall have all of the powers and be subject to all of the restrictions upon the Chairman
of the Board.

Section 4. President. The President shall be the Chief Operating Officer of the Corporation and shall have general and active charge of

the operations of the Corporation, subject to the powers of the Board of Directors and the Chief Executive Officer. Subject to the powers and
direction of the Chief Executive Officer, the President shall possess the power to execute all bonds, mortgages, certificates, contracts and other
instruments except where the signing and execution thereof shall be expressly delegated by the Board of Directors to some other officer or agent
of the Corporation. In the absence of the Chief Executive Officer, or in the event of his inability or refusal to act, the President shall perform the
duties of the Chief Executive Officer, and when so acting, shall have all the powers of and be subject to all the restrictions upon the Chief
Executive Officer. The President shall have and exercise such further powers and duties as the Board of Directors or the Chief Executive
Officer may from time to time prescribe.

Section 5. Vice President-Finance. The Vice President-Finance shall be the chief financial officer of the Corporation and shall have

responsibility for all financial operations of the Corporation. The Vice President-Finance shall oversee the Treasurer and any Assistant
Treasurers, and the Treasurer and any Assistant Treasurers shall report to the Vice President-Finance. The Vice President-Finance shall have
and exercise such further powers and duties as the Board of Directors or the Chief Executive Officer may from time to time prescribe.

Section 6. Vice Presidents. In addition to the Vice President-Finance, the Board of Directors may elect such other Vice Presidents as it

shall from time to time deem necessary or appropriate. Each Vice President shall have and perform such powers and duties as the Board of
Directors, the Chief Executive Officer, or the President may from time to time prescribe.

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Section 7. Treasurer. Subject to the oversight of the Vice President-Finance, the Treasurer shall have the custody of the corporate

funds and securities and shall keep complete and accurate accounts of all receipts and disbursements of the Corporation, and shall deposit all
monies and other valuable effects of the Corporation in its name and to its credit in such banks and other depositories as may be designated
from time to time by the Board of Directors. The Treasurer shall disburse the funds of the Corporation, taking proper vouchers and receipts for
such disbursements, and shall render to the Board of Directors, at its regular meetings, or when the Board of Directors so requires, an account of
all his or her transactions as Treasurer and of the financial condition of the Corporation. The Treasurer shall have such other powers and
perform such other duties as the Board of Directors, the Chief Executive Officer or the Vice President-Finance shall from time to time
prescribe.

Section 8. Secretary. The Secretary shall attend all meetings of the Board of Directors and all meetings of stockholders and record all
the proceedings thereat in a book or books to be kept for that purpose; the Secretary shall also perform like duties for the standing committees
when required. The Secretary shall give, or cause to be given, notice of all meetings of the stockholders and special meetings of the Board of
Directors, and shall have and exercise such further powers and duties as may be prescribed by the Board of Directors or the Chief Executive
Officer. If the Secretary shall be unable or shall refuse to cause to be given notice of all meetings of the stockholders and special meetings of the
Board of Directors, and if there be no Assistant Secretary, then either the Board of Directors or the Chief Executive Officer may choose another
officer to cause such notice to be given. The Secretary shall have custody of the seal of the Corporation and the Secretary or any Assistant
Secretary, if there be one, shall have authority to affix the same to any instrument requiring it and when so affixed, it may be attested by the
signature of the Secretary or by the signature of any such Assistant Secretary. The Board of Directors may give general authority to any other
officer to affix the seal of the Corporation and to attest the affixing by his or her signature. The Secretary shall see that all books, reports,
statements, certificates and other documents and records required by law to be kept or filed are properly kept or filed, as the case may be.

Section 9. Assistant Treasurer. Except as may be otherwise provided in these Bylaws, Assistant Treasurers, if there be any, shall
perform such duties and have such powers as from time to time may be assigned to them by the Board of Directors, the Chief Executive Officer,
the Vice President-Finance or the Treasurer, and shall have the authority to perform all functions of the Treasurer, and when so acting, shall
have all the powers of and be subject to all restrictions upon the Treasurer.

Section 10. Assistant Secretaries. Except as may be otherwise provided in these Bylaws, Assistant Secretaries, if there be any, shall

perform such duties and have such powers as from time to time may be assigned to them by the Board of Directors, the Chief Executive Officer
or the Secretary, and shall have the authority to perform all functions of the Secretary, and when so acting, shall have all the powers of and be
subject to all the restrictions upon the Secretary.

Section 11. Other Officers. Such other officers as the Board of Directors may choose shall perform such duties and have such powers

as from time to time may be assigned to them by the Board of Directors. The Board of Directors may delegate to any other officer of the
Corporation the power to choose such other officers and to prescribe their respective duties and powers.

Section 12. Voting Securities Owned by the Corporation. Powers of attorney, proxies, waivers of notice of meeting, consents and other

instruments relating to securities owned by the Corporation may be executed in the name of and on behalf of the Corporation by the Chief
Executive Officer, the President, the Vice President-Finance, any other Vice President or the Secretary and any such officer may, in the name of
and on behalf of the Corporation, take all such action as any such officer may deem advisable to vote in person or by proxy at any meeting of
security holders of any corporation in which the Corporation may own securities and at any such meeting shall possess and may exercise any
and all rights and power incident to the ownership of such securities and which, as the owner thereof, the Corporation might have exercised and
possessed if present. The Board of Directors may, by resolution, from time to time confer like powers upon any other person or persons.

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ARTICLE V
STOCK

Section 1. Form of Certificates. Shares of the capital stock of the Corporation may be certificated or uncertificated, as provided under

Delaware General Corporation Law. Every holder of stock in the Corporation, upon written request, shall be entitled to have a certificate signed,
in the name of the Corporation (i) by the Chief Executive Officer, the President or a Vice President and (ii) the Treasurer or an Assistant
Treasurer, or the Secretary or an Assistant Secretary of the Corporation, certifying the number of shares owned by such holder in the
Corporation.

Section 2. Signatures. Any or all the signatures on the certificate may be a facsimile. In case any officer, transfer agent or registrar who
has signed or whose facsimile signature has been placed upon a certificate shall have ceased to be such officer, transfer agent or registrar before
such certificate is issued, it may be issued by the Corporation with the same effect as if such person were such officer, transfer agent or registrar
at the date of issue.

Section 3. Lost Certificates. The Board of Directors may direct a new certificate to be issued in place of any certificate theretofore

issued by the Corporation alleged to have been lost, stolen or destroyed, upon the making of an affidavit of that fact by the person claiming the
certificate of stock to be lost, stolen or destroyed. When authorizing such issue of a new certificate, the Board of Directors may, in its discretion
and as a condition precedent to the issuance thereof, require the owner of such lost, stolen or destroyed certificate, or such owner’s legal
representative, to advertise the same in such manner as the Board of Directors shall require and/or to give the Corporation a bond in such sum as
it may direct as indemnity against any claim that may be made against the Corporation with respect to the certificate alleged to have been lost,
stolen or destroyed.

Section 4. Transfers. Stock of the Corporation shall be transferable in the manner prescribed by law and in these Bylaws. Transfers of

stock shall be made on the books of the Corporation, if such stock is certificated, only by the person named in the certificate or by such person’s
attorney lawfully constituted in writing and upon the surrender of the certificate therefor, which shall be cancelled before a new certificate shall
be issued, or upon proper instructions from the holder of uncertificated shares, in each case with such proof of the authenticity of signature as
the Corporation or its transfer agent may reasonably require.

Section 5. Record Date. In order that the Corporation may determine the stockholders entitled to notice of or to vote at any meeting of

stockholders or any adjournment thereof, or entitled to receive payment of any dividend or other distribution or allotment of any rights, or
entitled to exercise any rights in respect of any change, conversion or exchange of stock, or for the purpose of any other lawful action, the Board
of Directors may fix, in advance, a record date, which shall not be more than sixty (60) days nor less than ten (10) days before the date of such
meeting, nor more than sixty (60) days prior to any other action. A determination of stockholders of record entitled to notice of or to vote at a
meeting of stockholders shall apply to any adjournment of the meeting; provided, however, that the Board of Directors may fix a new record
date for the adjourned meeting.

Section 6. Beneficial Owners. The Corporation shall be entitled to recognize the exclusive right of a person registered on its books as

the owner of shares to receive dividends, and to vote as such owner, and to hold liable for calls and assessments a person registered on its books
as the owner of shares, and shall not be bound to recognize any equitable or other claim to or interest in such share or shares on the part of any
other person, whether or not it shall have express or other notice thereof, except as otherwise provided by law.

ARTICLE VI
NOTICES

Section 1. Notices. Whenever written notice is required by law, the Certificate of Incorporation or these Bylaws, to be given to any

director, member of a committee or stockholder, such notice may be given by mail, addressed to such director, member of a committee or
stockholder, at such person’s address as it appears on the records of the Corporation, with postage thereon prepaid, and such notice shall be
deemed to be given at the time when the same shall be deposited in the United States mail. Written notice may also be given personally or by
telegram, telex, telecopy or cable and such notice shall be deemed to be given at the time of receipt thereof, if given personally, and at the time
of transmission thereof if given by telegram, telex, telecopy or cable.

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Section 2. Waiver of Notice. Whenever any notice is required by law, the Certificate of Incorporation or these Bylaws to be given to

any director, member of a committee or stockholder, a waiver thereof in writing, signed by the person or persons entitled to such notice,
whether before or after the time stated, therein, shall be deemed equivalent to notice.

ARTICLE VII
GENERAL PROVISIONS

Section 1. Dividends. Dividends upon the capital stock of the Corporation, subject to the provisions of the Certificate of Incorporation,

if any, may be declared by the Board of Directors at any regular or special meeting or by any committee of the Board of Directors having such
authority at any meeting thereof, and may be paid in cash, in property, in shares of the capital stock or in any combination thereof. Before
payment of any dividend, there may be set aside out of any funds of the Corporation available for dividends such sum or sums as the Board of
Directors from time to time, in its absolute discretion, deems proper as a reserve or reserves to meet contingencies, or for equalizing dividends,
or for repairing or maintaining any property of the Corporation, or for any proper purpose, and the Board of Directors may modify or abolish
any such reserve.

Section 2. Disbursements. All notes, checks, drafts and orders for the payment of money issued by the Corporation shall be signed in

the name of the Corporation by such officers or such other persons as the Board of Directors may from time to time designate.

Section 3. Corporation Seal. The corporate seal shall have inscribed thereon the name of the Corporation, the year of its organization
and the words “Corporate Seal, Delaware.” The seal may be used by causing it or a facsimile thereof to be impressed or affixed or reproduced
or otherwise.

ARTICLE VIII
AMENDMENTS

These Bylaws may be altered, amended or repealed and new Bylaws may be adopted at any meeting of the Board of Directors or of the

stockholders, provided notice of the proposed change was given in the notice of the meeting.

ARTICLE IX
EXCLUSIVE FORUM

Unless the Corporation consents in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware (or,
if and only if such court does not have subject matter jurisdiction thereof, another State court in Delaware or, if and only if all such State courts
do  not  have  jurisdiction,  the  federal  district  court  of  the  State  of  Delaware)  and  any  appellate  court  therefrom  shall,  to  the  fullest  extent
permitted by law, be the sole and exclusive forum for: (i) any derivative action or proceeding brought on behalf of the Corporation, (ii) any
action  or  proceeding  asserting  a  claim  for  or  based  on  a  breach  of  a  fiduciary  duty  owed  by  any  current  or  former  director,  officer,  other
employee, agent or stockholder of the Corporation to the Corporation or the Corporation’s stockholders, including without limitation a claim
alleging the aiding and abetting of such a breach of fiduciary duty, (iii) any action or proceeding asserting a claim against the Corporation or
any  current  or  former  director,  officer,  employee,  agent  or stockholder  of  the  Corporation  arising  pursuant  to  any provision  of the  Delaware
General Corporation Law or the Corporation’s Certificate of Incorporation or these Bylaws or as to which the Delaware General Corporation
Law  confers  jurisdiction  on  the  Court  of  Chancery  of  the  State  of  Delaware,  or  (iv)  any  action  asserting  a  claim  related  to  or  involving  the
Corporation that is governed by the internal affairs doctrine. For the avoidance of doubt, this first paragraph of this Article IX shall not apply to
any action brought to enforce a duty or liability created by the Securities Act of 1933, as amended (“Securities Act”) or the Exchange Act.

Unless the Corporation consents in writing to the selection of an alternative forum, the federal district courts of the United States of
America shall, to the fullest extent permitted by law, be the sole and exclusive forum for the resolution of any complaint asserting a cause of
action arising under the Securities Act and the rules and regulations promulgated thereunder.

Any person or entity purchasing or otherwise acquiring or holding any interest in shares of capital stock of the Corporation shall be

deemed to have notice of and consented to the provisions of this Article IX.

Failure  to  enforce  the  foregoing  provisions  would  cause  the  Corporation  irreparable  harm,  and  the  Corporation  shall  be  entitled  to

equitable relief, including injunctive relief and specific performance, to enforce the foregoing provisions.

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DESCRIPTION OF THE COMPANY’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES
EXCHANGE ACT OF 1934, AS AMENDED

As of December 31, 2020, US Ecology, Inc. (“we,” “our,” the “Company”) has two classes of securities registered under Section 12 of
the Securities Exchange Act of 1934, as amended (the “Exchange Act”) (1) common stock of the Company and (2) warrants to acquire shares of
our  common  stock.  The  following  description  is  a  general  summary  of  the  terms  of  the  shares  of  our  common  stock  and  warrants.  The
description  below  does  not  include  all  of  the  terms  of  the  shares  of  our  common  stock  and  warrants  and  should  be  read  together  with  our
Amended and Restated Certificate of Incorporation, as amended from time to time (the “Amended Charter”), and our Amended and Restated
Bylaws,  as  amended  from  time  to  time  (the  “Amended  Bylaws”),  each  of  which  are  incorporated  by  reference  as  an  exhibit  to  this  Annual
Report on Form 10-K.

Exhibit 4.2

Common Stock

General

Under the Amended Charter, we have the authority to issue 75,000,000 shares of common stock, par value $0.01 per share. Each share
of  our  common  stock  has  the  same  relative  rights  and  is  identical  in  all  respects  to  each  other  share  of  our  common  stock.  The  rights,
preferences and privileges of our holders of common stock are subject to the rights, preferences and privileges of the holders of shares of any
series of preferred stock that we have issued or may issue in the future.

Voting Rights

The holders of our common stock are entitled to one vote per share on any matter to be voted upon by our stockholders; provided,
however, that our Amended Charter entitles holders of shares of our common stock have cumulative voting in connection with the election of
directors,  which  means  that  holders  are  entitled  to  as  many  votes  as  shall  equal  the  number  of  votes  which  (except  for  this  provision  on
cumulative voting) such holder is entitled to cast for the election of directors with respect to such holder’s shares of stock multiplied by the
number of directors to be elected by such holder, and such holder may cast all of such votes for a single director or may distribute them among
the number to be voted for, or for any two or more of them as such holder may see fit.

Dividends

The holders of our common stock are entitled to receive dividends, if any, when, as and if declared by our board of directors out of

funds legally available for payment.

Liquidation Rights

In the event of any liquidation, dissolution or winding up of the affairs of the Company, whether voluntary or involuntary, the holders

of shares of our common stock are entitled to share ratably in all assets remaining after the payment of creditors.

Preemptive Rights

Holders of our common stock will not have preemptive, conversion, redemption or sinking fund rights.

Transfer Restrictions

Our  Amended  Charter  contains  transfer  restrictions  to  ensure  compliance  with  the  U.S.  citizen  ownership  requirements  of  the  U.S.
coastwise  trade  laws,  which  are  principally  contained  in  46  U.S.C.  Chapters  121,  505  and  551  and  the  related  regulations  (collectively,  the
“Jones Act”), as described below under the heading “Restrictions on US Ecology Stock Ownership and Purchase of Capital Stock by Non-U.S.
citizens under our Amended Charter.”

Nasdaq Listing

Our common stock is listed on the Nasdaq Global Select Market System (“Nasdaq”) under the symbol “ECOL.”

Transfer Agent and Registrar

The  transfer  agent  and  registrar  for  our  common  stock  is  American  Stock  Transfer  and  Trust  Company,  LLC  and  its  address  and

telephone number are 6201 15th Avenue, Brooklyn, NY 11219 and (800) 937-5449, respectively.

Delaware Law and Certain Amended Charter and Amended Bylaws Provisions

The provisions of Delaware law and of our Amended Charter and Amended Bylaws discussed below could discourage or make it more
difficult  to  acquire  control  of  the  Company  by  means  of  a  tender  offer,  open  market  purchases,  a  proxy  contest  or  otherwise.  Our  board  of
directors believes that these charter provisions are appropriate to protect our interests and the interests of our stockholders. A summary of these
provisions is set forth below. This summary does not purport to be complete and is qualified in its entirety by reference to the Delaware General
Corporation Law (the “DGCL”), our Amended Charter and our Amended Bylaws.

Section 203 of the Delaware General Corporation Law

We  are  subject  to  the  provisions  of  Section  203  of  the  DGCL.  Section  203  prohibits  a  publicly  held  Delaware  corporation  from
engaging in a “business combination” with an “interested stockholder” for a period of three years after the date of the transaction in which the
person  became  an  interested  stockholder,  unless  the  business  combination  is  approved  in  a  prescribed  manner.  A  “business  combination”
includes mergers, asset sales and other transactions resulting in a financial benefit to the interested stockholder. Subject to specified exceptions,
an “interested stockholder” is a person who, together with affiliates and associates, owns, or within three years did own, 15% or more of the
corporation’s voting stock.

Stockholders Rights Plan Policy

Stockholder rights plans can protect stockholders against abusive takeover tactics and ensure that each stockholder is treated fairly in
an  acquisition.  Such  plans  have  been  effective  in  connection  with  bids  for  control  of  other  companies  in  giving  boards  of  directors’  time  to
evaluate offers, investigate alternatives and take steps necessary to maximize value to stockholders. In lieu of adopting a stockholder rights plan,
our board of directors has instead adopted a policy with respect to the adoption of any stockholder rights plan for us in the future. Our policy,
adopted  in  July  2012,  is  that  we  will  adopt  a  stockholder  rights  plan  only  if,  in  the  exercise  of  their  fiduciary  duties,  a  majority  of  the
independent directors conclude that it would be in our best interests and those of the holders of the majority of the shares of our common stock.
Our  board  believes  that  this  policy  addresses  the  legitimate  concerns  that  stockholders  have  with  the  use  of  stockholder  rights  plans  while
maintaining its ability to act in the stockholders’ best interests and preserving our flexibility to react to unanticipated situations which may arise
without notice.

Number of Directors; Removal; Filling Vacancies

Our Amended Bylaws provide that our board of directors will consist of not less than five and not more than twelve directors, the exact
number to be fixed from time to time by resolution adopted by our directors. Further, subject to the rights of the holders of any series of our
preferred stock, if any, our Amended Bylaws authorize our board of directors to elect additional directors under specified circumstances and fill
any vacancies that occur in our board by reason of death, resignation, removal, or otherwise. A director so elected by our board to fill a vacancy
or a newly created directorship holds office until the next election and until his successor is elected and qualified. Subject to the rights of the
holders of any series of our preferred stock, if any, our Amended Bylaws also provide that directors may be removed with or without cause by
the affirmative vote of holders of a majority of the combined voting power of the then outstanding stock of the Company.

Indemnification

We  have  included  in  our  Amended  Charter  and  Amended  Bylaws  provisions  to  eliminate  the  personal  liability  of  our  directors  for
monetary  damages  resulting  from  breaches  of  their  fiduciary  duty  to  the  extent  permitted  by  the  DGCL,  and  to  indemnify  our  directors  and
officers  to  the  fullest  extent  permitted  by  Section  145  of  the  DGCL,  including  circumstances  in  which  indemnification  is  otherwise
discretionary. These provisions may have the effect of reducing the likelihood of derivative litigation against our directors and may discourage
or deter stockholders or management from bringing a lawsuit against our directors for breach of their duty of care, even though such an action,

if successful, might otherwise have benefited the Company and our stockholders. We believe that these provisions are necessary to attract and
retain qualified persons as directors and officers.

Advance Notice Provision

The Amended Bylaws establish an advance notice procedure for stockholder proposals to be brought before an annual meeting of the
Company’s stockholders, including proposed nominations of persons for election to our board of directors. Stockholders at an annual meeting
will only be able to consider proposals or nominations specified in the notice of meeting or brought before the meeting by or at the direction of
the board of directors or by a stockholder who was a stockholder of record on the record date for the meeting, who is entitled to vote at the
meeting  and  who  has  given  the  Company  timely  written  notice  to  the  corporate  secretary  in  proper  form  and  consistent  with  the  notice
requirements set forth in the Amended Bylaws. Such notice requirements include, but are not limited to, the stockholder nominee’s name and
address, the class and amount of stock beneficially owned by the stockholder nominee and disclosure of any material agreements or litigation
between the Company and stockholder nominee.

Restrictions on our Stock Ownership and Purchase of Capital Stock by Non-U.S. citizens under our Amended Charter

Certain of our operations are conducted in the U.S. coastwise trade and are governed by the Jones Act, which is principally contained
in 46 U.S.C. Chapters 121, 505 and 551 and the related regulations. The Jones Act restricts the transportation of merchandise and passengers for
hire by water or by land and water, either directly or via a foreign port between points in the United States and certain of its island territories
and possessions, to U.S.-flag vessels that meet certain requirements, including that they are built in the United States, owned and controlled by
U.S. citizens (within the meaning of the Jones Act), and manned by predominantly U.S. citizen crews. Should the Company fail to satisfy the
requirements  of  the  Jones  Act  to  be  a  U.S.  citizen,  the  Company  would  be  prohibited  from  operating  its  vessels  in  the  U.S.  coastwise  trade
during the period  of such non-compliance.  In addition,  the Company could  be subject to substantial  fines  and its vessels  could be subject  to
seizure and forfeiture for violations of the Jones Act.

The following is a summary of the restrictions (the “Maritime Restrictions”) in Article Eighth of the Amended Charter. This summary

is qualified in its entirety by reference to the full text of the Amended Charter.

General Restriction on Ownership of Shares by non-U.S. citizens

In  order  to  protect  the  Company’s  eligibility  as  a  U.S.  citizen,  the  Amended  Charter  restricts  the  record  or  beneficial  ownership  or
control of shares of each class or series of our capital stock, which includes common stock, by non-U.S. citizens to no more than 24% in the
aggregate of the total issued and outstanding shares of such class or series. The Company refers to such percentage restriction on ownership by
non-U.S. citizens of any class or series of shares of the Company’s capital stock as the “Permitted Percentage” and any such shares owned by
non-U.S. citizens in excess of the Permitted Percentage as “Excess Shares.” The Amended Charter provides that a person will not be deemed to
be the beneficial owner of shares of our capital stock, if our board of directors determines that such person is not the beneficial owner of such
shares for the purposes of the Jones Act. All references to beneficial ownership of shares and the derivative phrases thereof in this summary of
the Maritime Restrictions include record ownership of shares and the ability to control shares.

Restriction on Transfers of Excess Shares

The Maritime Restrictions provide that no shares of any class or series of the capital stock of the Company may be transferred to a
non-U.S. citizen or a holder of record that will hold such shares for or on behalf of a non-U.S. citizen if, upon completion of such transfer, the
number of shares of such class or series beneficially owned by all non-U.S. citizens in the aggregate would exceed the Permitted Percentage for
such  class  or  series.  Any  transfer  or  purported  transfer  of  beneficial  ownership  of  any  shares  of  any  class  or  series  of  capital  stock  of  the
Company, the effect of which would be to cause one or more non-U.S. citizens in the aggregate to beneficially own shares of any class or series
of capital stock of the Company in excess of the Permitted Percentage for such class or series, shall, to the fullest extent permitted by law, be
void ab initio and ineffective, and, to the extent that the Company or its transfer agent (if any) knows that such transfer or purported transfer
would,  if  completed,  be  in  violation  of  the  restrictions  on  transfers  to  non-U.S.  citizens  set  forth  in  the  Maritime  Restrictions,  neither  the
Company  nor  its  transfer  agent  (if  any)  shall  register  such  transfer  or  purported  transfer  on  the  stock  transfer  records  of  the  Company  and
neither  the  Company  nor  its  transfer  agent  (if  any)  shall  recognize  the  transferee  or  purported  transferee  thereof  as  a  stockholder  of  the
Company  for  any  purpose  whatsoever  (including  for  purposes  of  voting,  dividends  and  other  distributions)  except  to  the  extent  necessary  to
effect any remedy available to the Company under the Maritime Restrictions. In no event shall any such registration or recognition make such
transfer or purported transfer effective unless our board of directors (or any duly authorized committee thereof, or any officer of the Company
who shall have been duly authorized by our board of directors or any such committee thereof) shall have expressly and specifically authorized
the same.

In  connection  with  any  purported  transfer  of  shares  of  any  class  or  series  of  the  capital  stock  of  the  Company,  any  transferee  or
proposed  transferee  of  shares  and,  if  such  transferee  or  proposed  transferee  is  acting  as  a  fiduciary  or  nominee  for  a  beneficial  owner,  such
beneficial owner, may be required by the Company or its transfer agent to deliver (1) certification (which may include as part

thereof a form of affidavit) upon which the Company and its transfer agent shall be entitled to rely conclusively stating whether such transferee
or proposed or purported transferee

or, if such transferee or proposed transferee is acting as custodian, nominee, purchaser representative or in any other capacity for a beneficial
owner, whether such beneficial owner, is a U.S. citizen, and (2) such other documentation and information concerning its citizenship under the
Maritime Restrictions as the Company may request in its sole discretion. Registration and recognition of any transfer of shares may be denied
by  the  Company  upon  refusal  to  furnish  any  of  the  foregoing  citizenship  certifications,  documentation  or  information  requested  by  the
Company. Each proposed transferor of such shares shall reasonably cooperate with any requests from the Company to facilitate the transmission
of  requests  for  such  citizenship  certifications  and  such  other  documentation  and  information  to  the  proposed  transferee  and  such  proposed
transferee’s responses thereto.

Notwithstanding any of the Maritime Restrictions, the Company shall be entitled to rely, without limitation, on the stock transfer and
other stockholder records of the Company (and its transfer agent) for the purposes of preparing lists of stockholders entitled to vote at meetings,
determining the validity and authority of proxies, and otherwise conducting votes of stockholders.

Excess Shares

If  on  any  date,  including,  without  limitation,  any  record  date  (each,  an  “Excess  Share  Date”),  the  number  of  shares  of  any  class  or
series of capital stock of the Company beneficially owned by all non-U.S. citizens in the aggregate should exceed the Permitted Percentage with
respect to such class or series of capital stock, irrespective of the date on which such event becomes known to the Company (such shares in
excess of the Permitted Percentage, the “Excess Shares”), then the shares of such class or series of capital stock of the Company that constitute
Excess Shares for purposes of the Maritime Restrictions shall be (1) those shares that have been acquired by or become beneficially owned by
non-U.S.  citizens,  starting  with  the  most  recent  acquisition  of  beneficial  ownership  of  such  shares  by  a  non-U.S.  citizen  and  including,  in
reverse chronological order of acquisition, all other acquisitions of beneficial ownership of such shares by non-U.S. citizens from and after the
acquisition of beneficial ownership of such shares by a non-U.S. citizen that first caused such Permitted Percentage to be exceeded, or (2) those
shares  beneficially  owned  by  non-U.S.  citizens  that  exceed  the  Permitted  Percentage  as  the  result  of  any  repurchase  or  redemption  by  the
Company of shares of its capital stock, starting with the most recent acquisition of beneficial ownership of such shares by a non-U.S. citizen and
going  in  reverse  chronological  order  of  acquisition;  provided,  however,  that:  (a)  the  Company  shall  have  the  power  to  determine,  in  its  sole
discretion, those shares of such class or series that constitute Excess Shares in accordance with the provisions of the Maritime Restrictions; (b)
the Company may, in its sole discretion, rely on any documentation  provided by non-U.S. citizens with respect to the date and time of their
acquisition of beneficial ownership of Excess Shares; (c) if the acquisition of beneficial ownership of more than one Excess Share occurs on the
same date and the time of acquisition is not definitively established, then the order in which such acquisitions shall be deemed to have occurred
on  such  date  shall  be  determined  by  lot  or  by  such  other  method  as  the  Company  may,  in  its  sole  discretion,  deem  appropriate;  (d)  Excess
Shares  that  result  from  a  determination  that  a  beneficial  owner  has  ceased  to  be  a  U.S.  citizen  shall  be  deemed  to  have  been  acquired,  for
purposes of the Maritime Restrictions, as of the date that such beneficial owner ceased to be a U.S. citizen; and (e) the Company may adjust
upward to the nearest whole share the number of shares of such class or series deemed to be Excess Shares. Any determination made by the
Company  pursuant  to  the  Maritime  Restrictions  as  to  which  shares  of  any  class  or  series  of  the  Company’s  capital  stock  constitute  Excess
Shares of such class or series shall be conclusive and shall be deemed effective as of the applicable Excess Share Date for such class or series.

Redemption of Excess Shares

To the extent that the above ownership and transfer restrictions would be ineffective for any reason, the Maritime Restrictions provide
that,  to  prevent  the  percentage  of  aggregate  shares  of  any  class  or  series  of  the  Company’s  capital  stock  owned  by  non-U.S.  citizens  from
exceeding the Permitted Percentage, the Company, by action of our board of directors (or any duly authorized committee thereof), in its sole
discretion,  will  have  the  power  (but  not  the  obligation)  to  redeem  all  or  any  number  of  such  Excess  Shares,  unless  such  redemption  is  not
permitted under applicable law.

Until  such  Excess  Shares  are  redeemed  or  they  are  no  longer  Excess  Shares,  the  holders  of  such  shares  will  not  be  entitled  to  any
voting rights with respect to such shares and the Company will pay any dividends or distributions with respect to such shares into a segregated
account. Full voting, distribution and dividend rights will be restored to

such Excess Shares (and any dividends or distributions paid into a segregated account will be paid to holders of record of such shares), promptly
after  the  time  and  to  the  extent  that  such  shares  have  ceased  to  be  Excess  Shares,  unless  such  shares  have  already  been  redeemed  by  the
Company.

If our board of directors  (or  any duly authorized  committee  thereof)  determines  to redeem  Excess Shares, the per share redemption
price (the “Redemption Price”) for each Excess Share shall be paid by the issuance of one Redemption Warrant (as defined below) for each
Excess Share; provided, however, that if (1) the Company determines that a Redemption Warrant would be treated as capital stock under the
Jones Act or (2) the Company is prevented from legally issuing Redemption Warrants under applicable law, then the Redemption Price shall be
paid, as determined by our board of directors (or any duly authorized committee thereof) in its sole discretion, (a) in cash (by wire transfer or
bank or cashier’s check), (b) by the issuance of Redemption Notes (as defined below), (c) by any combination of cash and Redemption Notes,
or (d) by any other means authorized or permitted under the DGCL.

·

·

“Redemption Warrants” means the warrants issued pursuant to that certain Assignment, Assumption and Amendment to the
Warrant Agreement, dated November 1, 2019, among the Company, American Stock Transfer & Trust Company, LLC, NRC
Group Holdings Corp. and Continental  Stock Transfer  and Trust Company (the  “Warrant Agreement”), with  respect  to the
warrants  entitling  the  holders  thereof  to  purchase  shares  of  our  common  stock  with  an  exercise  price  per  warrant  equal  to
$0.01 per share of our common stock. A holder of Redemption Warrants (or its proposed or purported transferee) who cannot
establish to the satisfaction of the Company that it is a U.S. citizen shall not be permitted to exercise its Redemption Warrants
if the shares issuable upon exercise would constitute Excess Shares if they were issued. Redemption Warrants shall not entitle
the holder to have any rights or privileges of stockholders of the Company solely by virtue of such Redemption Warrants,
including, without limitation, any rights to vote, to receive dividends or distributions, to exercise any preemptive rights, or to
receive  notices,  in  each  case,  as  stockholders  of  the  Company,  until  they  exercise  their  Redemption  Warrants  and  receive
shares of our common stock.

“Redemption Notes” means  interest-bearing  promissory  notes  of  the  Company  with  a  maturity  of  not  more  than  ten  years
from  the  date  of  issue  and  bearing  interest  at  a  fixed  rate  equal  to  the  yield  on  the  U.S.  Treasury  Note  having  a  maturity
comparable to the term of such Redemption Notes as published in The Wall Street Journal or comparable publication at the
time of the issuance of the Redemption Notes. Such notes shall be governed by the terms of an indenture to be entered into by
and between the Company and a trustee, as may be amended from time to time. Redemption Notes shall be redeemable at par
plus accrued but unpaid interest.

With  respect  to  the  portion  of  the  Redemption  Price  being  paid  in  whole  or  in  part  by  cash  and/or  by  the  issuance  of  Redemption
Notes, such portion of the Redemption  Price shall be an amount equal  to, in the case  of cash, or a principal  amount  equal to, in the case of
Redemption Notes, the sum of (1) the fair market value of such Excess Share as of the date of redemption of such Excess Share plus (2) an
amount equal to the amount of any dividend or any other distribution (upon liquidation or otherwise) declared in respect of such Excess Share
prior  to  the  date  on  which  such  Excess  Share  is  called  for  redemption  and  which  amount  has  been  paid  into  a  segregated  account  by  the
Company.

Written notice of the redemption of the Excess Shares containing the information set forth in the Maritime Restrictions, together with a
letter of transmittal to accompany certificates, if any, representing the Excess Shares that have been called for redemption, shall be given either
by  hand  delivery  or  by overnight  courier  service  or  by  first-class  mail,  postage  prepaid,  to  each  holder  of  record  of  the  Excess  Shares  to  be
redeemed,  at such holder’s last known address as the same appears on the stock register of the Company (the “Redemption Notice”),  unless
such notice is waived in writing by any such holders.

The  date  on  which  the  Excess  Shares  shall  be  redeemed  (the  “Redemption  Date”)  shall  be  the  later  of  (1)  the  date  specified  in  the
Redemption Notice sent to the record holder of the Excess Shares (which shall not be earlier than the date of such notice), and (2) the date on
which the Company has irrevocably deposited in trust with a paying agent

or set aside for the benefit of such record holder consideration sufficient to pay the Redemption Price to such record holders of such Excess
Shares in Redemption Warrants, cash and/or Redemption Notes.

Each  Redemption  Notice  to  each  holder  of  record  of  the  Excess  Shares  to  be  redeemed  shall  specify  (1)  the  Redemption  Date  (as
determined pursuant to the Maritime Restrictions), (2) the number and the class or series of shares of capital stock to be redeemed from such
holder as Excess Shares (and, to the extent such Excess Shares are certificated, the certificate number(s) representing such Excess Shares), (3)
the Redemption Price and the manner of payment thereof, (4) the place where certificates for such Excess Shares (if such Excess Shares are
certificated) are to be surrendered for cancellation, (5) any instructions as to the endorsement or assignment for transfer of such certificates (if
any) and the completion of the accompanying letter of transmittal, and (6) the fact that all right, title and interest in respect of the Excess Shares
to  be  redeemed  (including,  without  limitation,  voting,  dividend  and  distribution  rights)  shall  cease  and  terminate  on  the  Redemption  Date,
except for the right to receive the Redemption Price, without interest.

On  and  after  the  Redemption  Date,  all  right,  title  and  interest  in  respect  of  the  Excess  Shares  selected  for  redemption  (including,
without  limitation,  voting  and  dividend  and  distribution  rights)  shall  forthwith  cease  and  terminate,  such  Excess  Shares  shall  no  longer  be
deemed to be outstanding shares for any purpose, including, without limitation, for purposes of voting or determining the total number of shares
entitled to vote on any matter properly brought before the stockholders for a vote thereon or receiving any dividends or distributions (and may
be either cancelled or held by the Company as treasury stock), and the holders of record of such Excess Shares shall thereafter be entitled only
to receive the Redemption Price, without interest.

Upon surrender of the certificates (if any) for any Excess Shares so redeemed in accordance with the requirements of the Redemption
Notice and the accompanying letter of transmittal (and otherwise in proper form for transfer as specified in the Redemption Notice), the holder
of record of such Excess Shares shall be entitled to payment of the Redemption Price. In case fewer than all the shares represented by any such
certificate are redeemed, a new certificate (or certificates), to the extent such shares were certificated, shall be issued representing the shares not
redeemed, without cost to the holder of record. On the Redemption Date, to the extent that dividends or other distributions (upon liquidation or
otherwise) with respect to the Excess Shares selected for redemption were paid into a segregated account, then, to the fullest extent permitted by
applicable law, such amounts shall be released to the Company upon the completion of such redemption.

Nothing  in  the  Maritime  Restrictions  will  prevent  the  recipient  of  a  Redemption  Notice  from  transferring  its  shares  before  the
Redemption Date if such transfer is otherwise permitted under the Maritime Restrictions and applicable law and the recipient provides notice of
such proposed  transfer  to  the Company along  with the  documentation  and  information  required  under  the Maritime  Restrictions  establishing
that  such  proposed  transferee  is  a  U.S.  citizen  to  the  satisfaction  of  the  Company  in  its  sole  discretion  before  the  Redemption  Date.  If  such
conditions  are  met,  our  board  of  directors  (or  any  duly  authorized  committee  thereof)  will  withdraw  the  Redemption  Notice  related  to  such
shares,  but  otherwise  the  redemption  thereof  will  proceed  on  the  Redemption  Date  in  accordance  with  the  Maritime  Restrictions  and  the
Redemption Notice.

Permitted Actions by the Company to Enforce the Maritime Restrictions

The Company has the power to determine the citizenship of the beneficial owners and the transferees or proposed transferees (and, if
such  transferees  or  proposed  transferees  are  acting  as  fiduciaries  or  nominees  for  any  beneficial  owners,  the  citizenship  of  such  beneficial
owners) of any class or series of the Company’s capital stock and to require confirmation from time to time of the citizenship of the beneficial
owners of any shares of its capital stock. As a condition to acquiring and having beneficial ownership of any shares of its capital stock, every
beneficial owner of the Company’s shares must comply with certain provisions in the Maritime Restrictions concerning citizenship, which are
summarized  below.  The  Company  has  the  right  under  the  Maritime  Restrictions  to  require  additional  reasonable  proof  of  the  citizenship  of
beneficial owners, transferees or proposed transferees (and any beneficial owners for whom such transferees or proposed transferees are acting
as fiduciaries or nominees) of any shares of its capital stock, and the determination of the Company at any time as to the citizenship of such
persons is conclusive.

The Maritime Restrictions require that promptly upon a beneficial owner’s acquisition of beneficial ownership of 5% or more of the
outstanding shares of any class or series of capital stock of the Company, and at such other times as the Company may determine by written
notice  to  such  beneficial  owner,  such  beneficial  owner  must  provide  to  the  Company  a  written  statement  or  an  affidavit,  as  specified  by the
Company, stating the name and address of such beneficial owner, the number of shares of each class or series of capital stock of the Company
beneficially owned by such beneficial owner as of a recent date, the legal structure of such beneficial owner, a statement as to whether such
beneficial  owner  is  a  U.S.  citizen,  and  such  other  information  and  documents  required  by  the  U.S.  Coast  Guard  or  the  U.S.  Maritime
Administration under the Jones Act, including 46 C.F.R. part 355. In addition, under the Maritime Restrictions, a beneficial owner is required to
provide such a written statement or affidavit when the Company determines, in its sole discretion, that the citizenship status of such beneficial
owner may have changed or that it is necessary under the Jones Act for the Company to confirm the Company’s citizenship status.

Under the Maritime Restrictions, when a beneficial owner of any shares of the Company’s capital stock ceases to be a U.S. citizen,
such beneficial owner is required to provide to the Company, as promptly as practicable but in no event less than five business days after the
date such beneficial owner becomes aware that it is no longer a U.S. citizen, a written statement, stating the name and address of such beneficial
owner, the number of shares of each class or series of its capital stock beneficially owned by such beneficial owner as of a recent date, the legal
structure of such beneficial owner, and a statement as to such change in status of such beneficial owner to a non-U.S. citizen.

The Maritime Restrictions require that, promptly after becoming a beneficial owner, every beneficial owner must provide, or authorize
such beneficial owner’s broker, dealer, custodian, depositary, nominee or similar agent with respect to the shares of each class or series of the
Company’s capital stock beneficially owned by such beneficial owner to provide, to the Company such beneficial owner’s address. A beneficial
owner  of  the  Company’s  capital  stock  is  also  required  by  the  Maritime  Restrictions  to  provide  promptly  upon  request  the  Company  with  a
written statement or an affidavit, as specified by the Company, stating the name and address of such beneficial owner, together with reasonable
documentation of the date and time of such beneficial owner’s acquisition of beneficial ownership of the shares of any class or series of capital
stock of the Company specified by the Company in its request.

In the event that the Company requests the documentation described above and a beneficial owner fails to provide it by the specified
date, the Maritime Restrictions provide for the suspension of the voting rights of such beneficial owner’s shares of the Company’s capital stock
and for the payment of dividends and distributions (upon liquidation or otherwise) with respect to those shares into a segregated account until
the  requested  documentation  is  submitted  in  form  and  substance  reasonably  satisfactory  to  the  Company  (subject  to  the  other  Maritime
Restrictions).  In  addition,  the  Company,  upon  approval  by  our  board  of  directors  (or  any  duly  authorized  committee  thereof)  in  its  sole
discretion,  has  the  power  to  treat  such  beneficial  owner  as  a  non-U.S.  citizen  unless  and  until  the  Company  receives  the  requested
documentation confirming that such beneficial owner is a U.S. citizen.

In the event that the Company requests a transferee or proposed transferee (and, if such transferee or proposed transferee is acting as a
fiduciary or nominee for a beneficial owner, such beneficial owner) of, shares of any class or series of the Company’s capital stock to provide
the  documentation  described  above,  and  such  person  fails  to  submit  it  in  form  and  substance  reasonably  satisfactory  to  the  Company  by  the
specified date, the Company, acting through our board of directors (or any duly authorized committee thereof, or any officer of the Company
who shall have been duly authorized by our board of directors or any such committee thereof), will have the power, in its sole discretion, to
refuse  to  accept  any  application  to  transfer  ownership  of  such  shares  (if  any)  or  to  register  such  shares  on  the  stock  transfer  records  of  the
Company and may prohibit and/or void such transfer, including by placing a stop order with the Company’s transfer agent, until such requested
documentation is submitted and the Company is satisfied that the proposed transfer of shares will not result in Excess Shares.

Certificates  representing  shares  of  any  class  or  series  of  the  Company’s  capital  stock  will  bear  legends  concerning  the  Maritime
Restrictions. Within a reasonable time after the issuance or transfer of uncertificated shares of the Company’s capital stock, the Company will
give notice, in writing or by electronic transmission, of the Maritime Restrictions.

Maritime Restrictions Severable

The Maritime Restrictions are intended to be severable. If any one or more of the Maritime Restrictions is held to be invalid, illegal or

unenforceable, the Amended Charter provides that the validity, legality or enforceability of any other provision will not be affected.

Summary of Requirements to be a U.S. citizen

The following is a summary of the requirements to be a U.S. citizen within the meaning of the Jones Act. Each holder and potential
purchaser of our stock should consult its own counsel as to whether it is a U.S. citizen or a non-U.S. citizen before purchasing our stock. The
Jones  Act  specifies  that  ownership  of  at  least  75%  of  the  equity  interest  by  U.S.  citizens  means  ownership  free  from  any  trust  or  fiduciary
obligations in favor of, or any agreement, arrangement or understanding or other means by which more than 25% of the voting power or control
of the corporation may be exercised directly or indirectly by or on behalf of, non-U.S. citizens. In addition, these citizenship requirements apply
at  each  tier  in  the  Company’s  ownership  chain,  which  means  that  they  must  be  satisfied  by  each  person  that  contributes  to  the  Company’s
eligibility as a U.S. citizen, and each person that contributes to the eligibility of such other person as a U.S. citizen at each tier of ownership. For
entities of a kind not described below, citizenship requirements may vary.

· A natural person is a U.S. citizen if he or she was born in the United States, born abroad to U.S. citizen parents, naturalized,

naturalized during minority through the naturalization of a parent, or as otherwise authorized by law.

· A partnership is deemed a U.S. citizen if such holder is (1) organized under the laws of the United States or a state, (2) each
general  partner  is  a  U.S.  citizen,  and  (3)  at  least  75%  of  the  ownership  and  voting  power  of  each  class  or  series  of  the
partnership interests is owned and controlled by U.S. citizens.

· A member-managed limited liability company is deemed a U.S. citizen if such holder is (1) organized under the laws of the
United  States  or  a  state,  (2)  each  member  of  the  limited  liability  company  is  a  U.S.  citizen,  and  (3)  at  least  75%  of  the
ownership and voting power of each class or series of the limited liability company interests is owned and controlled by U.S.
citizens.

· A manager-managed limited liability company is deemed a U.S. citizen if such holder is (1) organized under the laws of the
United  States  or  a  state,  (2)  each  manager  is  a  U.S.  citizen  within  the  meaning  of  the  Jones  Act,  (3)  the  chief  executive
officer, by whatever title, and the chairman of the board of directors (or equivalent body) of the limited liability company are
U.S.  citizens,  (4)  not  more  than  a  minority  of  the  number  of  the  directors  (or  equivalent  office)  necessary  to  constitute  a
quorum of the board of directors (or equivalent body) of the limited liability company are non-U.S. citizens, and (5) at least
75%  of  the  ownership  and  voting  power  of  each  class  or  series  of  the  limited  liability  company  interests  is  owned  and
controlled by U.S. citizens.

· A corporation is deemed a U.S. citizen if such holder is (1) organized under the laws of the United States or a state, (2) the
chief executive officer, by whatever title, and the chairman of the board of directors of the corporation are U.S. citizens, (3)
not  more  than  a  minority  of  the  number  of  the  directors  necessary  to  constitute  a  quorum  of  the  board  of  directors  of  the
corporation  are  non-U.S.  citizens,  and  (4)  at  least  75%  of  the  ownership  and  voting  power  of  each  class  or  series  of  the
corporation’s stock is owned and controlled by U.S. citizens.

· A trust is deemed to be a U.S. citizen if it (1) is organized under the laws of the United States or a state, (2) each trustee is a
U.S. citizen, (3) each beneficiary with an enforceable interest in the trust is a U.S. citizen, and (4) at least 75% of the equity
interest in the trust is owned and controlled by U.S. citizens.

If the Company should fail to comply with the above described ownership requirements, the Company’s vessels could lose their ability

to engage in U.S. coastwise trade. To assist the Company with compliance with these requirements, the Amended Charter:

·

·

·

·

·

limits ownership by non-U.S. citizens of any class or series of our capital stock (including our common stock) to 24%;

permits the Company to withhold dividends and suspend voting rights with respect to any shares held by non-U.S. citizens
above 24%;

permits the Company to establish and maintain a dual share system under which different forms of certificates (in the case of
certificated shares) and different book entries (in the case of uncertificated shares) are used to reflect whether the owner is or
is not a U.S. citizen;

permits the Company to redeem any shares held by non-U.S. citizens so that the Company’s non-U.S. citizen ownership is no
greater than 24%; and

permits the Company to take measures to ascertain ownership of our stock.

All potential investors will be required to certify to the Company if it is a U.S. citizen before investing in our common stock. If you or
a proposed transferee cannot or do not make such certification, or a sale of stock to you or a transfer of your stock would result in the ownership
by non-U.S. citizens of 24% or more of our common stock, such person may not be allowed to purchase or transfer our common stock, or such
purchase or transfer may be reversed or the shares so purchased or transferred may be redeemed under the Amended Charter. All certificates
representing the shares of our common stock will bear legends referring to the foregoing restrictions. Within a reasonable time after the issuance
or transfer of uncertificated shares of our capital stock, the Company will give notice, in writing or by electronic transmission, of the Maritime
Restrictions.

Exclusive Forum

The Amended Bylaws provide that: (i) unless the Company consents in writing to the selection of an alternative forum, the Court of
Chancery of the State of Delaware (or, if such court does not have subject matter jurisdiction thereof, the federal district court of the State of
Delaware) and any appellate court therefrom shall, to the fullest extent permitted by law, be the sole and exclusive forum for: (a) any derivative
action or proceeding brought on behalf of the Company, (b) any action asserting a claim for or based on a breach of a fiduciary duty owed by
any  of  the  Company’s  current  or  former  directors,  officers,  other  employees,  agents  or  stockholders  to  the  Company  or  the  Company’s
stockholders, including without limitation a claim alleging the aiding and abetting of such a breach of fiduciary duty, (c) any action asserting a
claim against the Company or any of the Company’s current or former directors, officers, employees, agents or stockholders arising pursuant to
any provision of the DGCL or the Company’s Amended Charter or Amended Bylaws or as to which the DGCL confers jurisdiction on the Court
of Chancery of the State of Delaware, or (d) any action asserting a claim related to or involving the Company that is governed by the internal
affairs doctrine; (ii) unless the Company consents in writing to the selection of an alternative forum, the federal district courts of the United
States will, to the fullest extent permitted by law, be the sole and exclusive forum for the resolution of any complaint asserting a cause of action
arising  under  the  Securities  Act  of  1933,  as  amended  (the  “Securities  Act”),  and  the  rules  and  regulations  promulgated  thereunder;  (iii)  any
person or entity purchasing or otherwise acquiring or holding any interest in shares of capital stock of the Company will be deemed to have
notice of and consented to these provisions; and (iv) failure to enforce the foregoing provisions would cause the Company irreparable harm, and
the Company will be entitled to equitable relief, including injunctive relief and specific performance, to enforce the foregoing provisions.

Warrants to Purchase Common Stock

Each  warrant  entitles  the  registered  holder  thereof  to  purchase  our  common  stock  for  $58.67  per  share,  subject  to  adjustment  as
discussed below, at any time. Warrants are exercisable only for a whole number of shares of our common stock. No fractional shares will be
issued upon exercise of the warrants. The warrants expire upon October 17, 2023, or earlier upon redemption or liquidation. The warrants are
listed on Nasdaq Capital Market under the symbol “ECOLW.”

The Company is not obligated to deliver any shares of common stock pursuant to the exercise of a warrant and has no obligation to
settle a warrant exercise unless a registration statement under the Securities Act with respect to the common stock underlying the warrants is
then  effective  and  a  prospectus  relating  thereto  is  current,  subject  to  the  Company  satisfying  its  obligations  described  below  with  respect  to
registration. No warrants is exercisable for cash or on a cashless basis, and the Company is not obligated to issue any common stock to holders
seeking to exercise their warrants, unless the issuance of the common stock upon such exercise is registered or qualified under the securities
laws of the state of the exercising holder, unless an exemption is available. In the event that the conditions in the two immediately preceding
sentences are not satisfied with respect to a warrant, the holder of such warrant will not be entitled to exercise such warrant and such warrant
may have no value and expire worthless.

In no event is the Company required to issue cash, securities or other compensation in exchange for the warrant in the event that the
Company is unable to register or qualify the shares underlying the warrant under the Securities Act or applicable state securities laws. If the
issuance of the shares upon exercise of the warrant is not so registered or qualified, the holder of such warrant shall not be entitled to exercise
such warrant and such warrant may have no value and expire worthless. In such event, holders who acquired their warrants as part of a purchase
of units will have paid the full unit purchase price solely for the shares of common stock included in the units.

Notwithstanding the above, if common stock is at the time of any exercise of a warrant not listed on a national securities exchange
such that it satisfies the definition of a “covered security” under Section 18(b)(1) of the Securities Act, the Company may, at its option, require
holders of warrants who exercise their warrants to do so on a “cashless basis” in accordance with Section 3(a)(9) of the Securities Act and, in
the event the Company so elects, the Company will not be required to file or maintain in effect a registration statement or register or qualify the
shares under blue sky laws.

Once the warrants become exercisable, the Company may call the warrants for redemption:

·

·

in whole and not in part;

at a price of $0.01 per warrant, provided that the last sales price of common stock reported has been at least $91.84 per share
on  each  of  20  days  within  the  30  trading-day  period  ending  on  the  business  day  prior  to  the  date  on  which  notice  of  the
redemption is given (the “Redemption Trigger Price”) and provided that there is an effective registration statement covering
the shares of common stock issuable on exercise of the warrants and subject to the satisfaction of certain other requirements;
and

·

upon not less than 30 days’ prior written notice of redemption to each warrant holder.

If and when the warrants become redeemable by the Company, the Company may not exercise its redemption right if the issuance of
shares of common stock upon exercise of the warrants is not exempt from registration or qualification under applicable state blue sky laws or
the Company is unable to effect such registration or qualification. The Company will use its best efforts to register or qualify such shares of
common stock under the blue sky laws of the state of residence in those states in which the warrants were offered by the Company.

The last of the redemption criteria discussed above was established to prevent a redemption call unless there is at the time of the call a
significant premium to the warrant exercise price. If the foregoing conditions are satisfied and the Company issues a notice of redemption of the
warrants, each warrant holder will be entitled to exercise his, her or its warrant prior to the scheduled redemption date. However, the price of the
common stock may fall below the Redemption Trigger Price as well as the warrant exercise price.

If the Company calls the warrants for redemption as described above, the Company’s management will have the option to require any
holder that wishes to exercise his, her or its warrants to do so on a “cashless basis.” In determining whether to require all holders to exercise
their warrants on a “cashless basis,” the Company’s management will consider, among other factors, the Company’s cash position, the number
of warrants that are outstanding and the dilutive effect on the Company’s stockholders of issuing the maximum number of shares of common
stock issuable upon the exercise of the warrants. If the Company’s management takes advantage of this option, all holders of warrants would
pay the exercise price by surrendering their warrants for that number of shares of common stock equal to the quotient obtained by dividing (1)
the product of the number of shares of common stock underlying the warrants, multiplied by the difference between the exercise price of the
warrants and the “fair market value” (defined below) by (2) the fair market value. The “fair market value” shall mean the average reported last
sale price of the common stock for the ten trading days ending on the third trading day prior to the date on which the notice of redemption is
sent  to  the  holders  of  warrants.  If  the  Company’s  management  takes  advantage  of  this  option,  the  notice  of  redemption  will  contain  the
information necessary to calculate the number of shares of common stock to be received upon exercise of the warrants, including the fair market
value in such case. Requiring a cashless exercise in this manner will reduce the number of shares to be issued and thereby lessen the dilutive
effect of a warrant redemption. The Company believes this feature is an attractive option to the Company if the Company does not need the cash
from the exercise of the warrants.

A holder of a warrant may notify the Company in writing in the event it elects to be subject to a requirement that such holder will not
have  the  right  to  exercise  such  warrant,  to  the  extent  that  after  giving  effect  to  such  exercise,  such  person  (together  with  such  person’s
affiliates), to the warrant agent’s actual knowledge, would beneficially own in excess of 4.9% or 9.8% (or such other amount as a holder may
specify) of the shares of common stock outstanding immediately after giving effect to such exercise.

If the number of outstanding shares of common stock is increased by a stock dividend payable in shares of common stock, or by a
split-up  of  shares  of  common  stock  or  other  similar  event,  then,  on  the  effective  date  of  such  stock  dividend,  split-up  or  similar  event,  the
number  of  shares  of  common  stock  issuable  on  exercise  of  each  warrant  will  be  increased  in  proportion  to  such  increase  in  the  outstanding
shares of common stock. A rights offering to holders of common stock entitling holders to purchase shares of common stock at a price less than
the fair market value will be deemed a stock dividend of a number of shares of common stock equal to the product of (1) the number of shares
of  common  stock  actually  sold  in  such  rights  offering  (or  issuable  under  any  other  equity  securities  sold  in  such  rights  offering  that  are
convertible into or exercisable for common stock) multiplied by (2) one minus the quotient of (i) the price per share of common stock paid in
such  rights  offering  divided  by  (ii)  the  fair  market  value.  For  these  purposes  (1)  if  the  rights  offering  is  for  securities  convertible  into  or
exercisable for common stock, in determining the price payable for common stock, there will be taken into account any consideration received
for such rights, as well as any additional amount payable upon exercise or conversion and (2) fair market value means the volume weighted
average price of common stock as reported during the ten trading day period ending on the trading day prior to the first date on which the shares
of common stock trade on the applicable exchange or in the applicable market, regular way, without the right to receive such rights.

In addition, if the Company, at any time while the warrants are outstanding and unexpired, pays a dividend or makes a distribution in
cash, securities or other assets to the holders of common stock on account of such shares of common stock (or other shares of the Company’s
capital stock into which the warrants are convertible), other than (1) as described above or (2) certain ordinary cash dividends then the warrant
exercise price will be decreased, effective immediately after the effective date of such event, by the amount of cash and/or the fair market value
of any securities or other assets paid on each share of common stock in respect of such event.

If  the  number  of  outstanding  shares  of  common  stock  is  decreased  by  a  consolidation,  combination,  reverse  stock  split  or
reclassification of shares of common stock or other similar event, then, on the effective date of such consolidation, combination, reverse stock
split,  reclassification  or  similar  event,  the  number  of  shares  of  common  stock  issuable  on  exercise  of  each  warrant  will  be  decreased  in
proportion to such decrease in outstanding shares of common stock.

Whenever the number of shares of common stock purchasable upon the exercise of the warrants is adjusted, as described above, the
warrant  exercise  price  will  be  adjusted  by  multiplying  the  warrant  exercise  price  immediately  prior  to  such  adjustment  by  a  fraction  (1)  the
numerator of which will be the number of shares of common stock purchasable  upon the exercise of the warrants immediately  prior to such
adjustment, and (2) the denominator of which will be the number of shares of common stock so purchasable immediately thereafter.

In case of any reclassification or reorganization of the outstanding shares of common stock (other than those described above or that
solely affects the par value of such shares of common stock), or in the case of any merger or consolidation of the Company with or into another
corporation  (other  than  a  consolidation  or  merger  in  which  the  Company  is  the  continuing  corporation  and  that  does  not  result  in  any
reclassification or reorganization of the Company’s outstanding shares of common stock), or in the case of any sale or conveyance to another
corporation or entity of the assets or other property of the Company as an entirety or substantially as an entirety in connection with which the
Company is dissolved, the holders of the warrants will thereafter have the right to purchase and receive, upon the basis and upon the terms and
conditions specified  in the warrants  and in lieu of the shares of common stock immediately  theretofore  purchasable  and receivable  upon the
exercise  of  the  rights  represented  thereby,  the  kind  and  amount  of  shares  of  stock  or  other  securities  or  property  (including  cash)  receivable
upon such reclassification, reorganization, merger or consolidation, or upon a dissolution following any such sale or transfer, that the holder of
the warrants would have received if such holder had exercised their warrants immediately prior to such event. However, if such holders were
entitled to exercise a right of election as to the kind or amount of securities, cash or other assets receivable upon such consolidation or merger,
then the kind and amount of securities, cash or other assets for which each warrant will become exercisable will be deemed to be the weighted
average of the kind and amount received per share by such holders in such consolidation or merger that affirmatively make such election, and if
a tender, exchange or redemption offer has been made to and accepted by such holders (other than a tender, exchange or redemption offer made
by the Company in connection with redemption rights held by stockholders as provided for in the charter) under circumstances in which, upon
completion of such tender or exchange offer, the maker thereof, together with members of any group (within the meaning of Rule 13d-5(b)(1)
under the Exchange Act) of which such

maker is a part, and together with any affiliate or associate of such maker (within the meaning of Rule 12b-2 under the Exchange Act) and any
members of any such group of which any such affiliate or associate is a part, own beneficially (within the meaning of Rule 13d-3 under the
Exchange Act) more than 50% of the outstanding shares of common stock, the holder of a warrant will be entitled to receive the highest amount
of  cash,  securities  or  other  property  to  which  such  holder  would  actually  have  been  entitled  as  a  stockholder  if  such  warrant  holder  had
exercised the warrant prior to the expiration of such tender or exchange offer, accepted such offer and all of the common stock held by such
holder had been purchased pursuant to such tender or exchange offer, subject to adjustments (from and after the consummation of such tender or
exchange offer) as nearly equivalent as possible to the adjustments provided for in the Warrant Agreement. Additionally, if less than 70% of the
consideration receivable by the holders of common stock in such a transaction is payable in the form of common stock in the successor entity
that is listed for trading on a national securities exchange or is quoted in an established over-the-counter market, or is to be so listed for trading
or quoted immediately following such event, and if the registered holder of the warrant properly exercises the warrant within 30 days following
public disclosure of such transaction, the warrant exercise price will be reduced based on the per share consideration minus the Black-Scholes
warrant value of the warrant in order to determine and realize the option value component of the warrant. This formula is to compensate the
warrant holder for the loss of the option value portion of the warrant due to the requirement that the warrant holder exercise the warrant within
30 days of the event. The Black-Scholes model is an accepted pricing model for estimating fair market value where no quoted market price for
an instrument is available.

The  warrants  are  issued  in  registered  form  under  the  Warrant  Agreement.  The  Warrant  Agreement  provides  that  the  terms  of  the
warrants  may  be  amended  without  the  consent  of  any  holder  to  cure  any  ambiguity  or  correct  any  defective  provision,  but  will  require  the
approval by the holders of at least 65% of the then outstanding warrants to make any change that adversely affects the interests of the registered
holders of warrants.

The warrants are exercisable upon surrender of the warrant certificate on or prior to the expiration date at the offices of the warrant
agent, with the exercise form on the reverse side of the warrant certificate completed and executed as indicated, accompanied by full payment of
the exercise price (or on a cashless basis, if applicable), by certified or official bank check payable to the Company, for the number of warrants
being exercised. The warrant holders do not have the rights or privileges of holders of common stock and any voting rights until they exercise
their warrants and receive shares of common stock. After the issuance of shares of common stock upon exercise of the warrants, each holder
will be entitled to one vote for each share held of record on all matters to be voted on by stockholders.

No  fractional  shares  will  be  issued  upon  exercise  of  the  warrants.  If,  upon  exercise  of  the  warrants,  a  holder  would  be  entitled  to
receive a fractional interest in a share, the Company will, upon exercise, round down to the nearest whole number of shares of common stock to
be issued to the warrant holder.

As discussed above, in order to protect the Company’s eligibility as a U.S. citizen in case that ownership of common stock by non-U.S.
citizens exceeds the maximum percentage permitted by the Jones Act (presently 25%), the Amended Charter and the Amended Bylaws contain
provisions  that  limit  the  maximum  aggregate  percentage  of  ownership  by  non-U.S.  citizens  of  the  common  stock  to  24%  of  the  outstanding
shares of common stock. At and during such time that the 24% maximum permitted percentage of ownership by non-U.S. citizens is reached
with respect to shares of common stock, the Company will be unable to permit the exercise of any warrants by non-U.S. citizens. If a holder of
the warrants that is a non-U.S. citizen is unable to exercise such warrants, it may have to wait to exercise such warrants until such time that the
24% maximum permitted percentage of ownership by non-U.S. citizens is not reached with respect to shares of common stock or may have to
sell such warrants to a U.S. citizen who is able to exercise the warrants.

AMENDED AND RESTATED
US ECOLOGY, INC.
 OMNIBUS INCENTIVE PLAN

Exhibit 10.6

Section 1.
Purpose of the Plan.  The purpose of the Amended and Restated US Ecology, Inc. Omnibus Incentive
Plan  (the  “Plan”)  is  to  assist  the  Company  and  its  Subsidiaries  in  attracting,  motivating  and  retaining  valued
Employees, Consultants and Non-Employee Directors by offering them a greater stake in the Company’s success and
a  closer  identity  with  it,  aligning  the  interests  of  Employees,  Consultants  and  Non-Employee  Directors  with  the
interests  of  the  Company’s  shareholders  and  encouraging  ownership  of  the  Company’s  stock  by  such  Employees,
Consultants and Non-Employee Directors.  In connection with, and as contemplated by, that certain Agreement and
Plan of Merger, dated as of June 23, 2019, by and among US Ecology, Inc. (now known as US Ecology Holdings,
Inc.), US Ecology Parent, Inc. (now known as US Ecology, Inc.), Rooster Merger Sub, Inc., ECOL Merger Sub, Inc.,
and  NRC  Group  Holdings  Corp.  (as  amended  and/or  restated  from  time  to  time,  the  “Merger  Agreement”),  the
Company  assumed  the  US  Ecology,  Inc.  Omnibus  Incentive  Plan  (the  “Pre-Merger Plan”),  amended  and  restated
such plan as set forth herein and renamed it the Amended and Restated US Ecology, Inc. Omnibus Incentive Plan.
 All awards granted under the Pre-Merger Plan that were outstanding as of immediately prior to the Effective Time
(as defined in the Merger Agreement) were assumed by the Company at the Effective Time and converted to be in
respect  of  Shares  (as  defined  below),  and  shall  be  treated  as  if  they  were  issued  under  the  Plan  (such  awards  as
converted, the “Converted Awards”).

Section 2.

Definitions.  As used herein, the following definitions shall apply:

2.1.

“Affiliate” means, with respect to any Person, any other Person that, directly or indirectly, is in control
of, is controlled by, or is under common control with, such Person.  For purposes of this definition, “control” of a
Person  means  the  power,  directly  or  indirectly,  to  direct  or  cause  the  direction  of  the  management  and  policies  of
such Person, whether by contract or otherwise.

2.2.

“Award” means any of Restricted Stock, Performance Stock, Options, SARs, Restricted Stock Units,

Performance Stock Units, Other Stock-Based Awards or Cash-Based Awards under the Plan.

2.3.

“Award Agreement” means the written agreement, instrument or document evidencing an Award.

2.4.

“Beneficial Owner” has the meaning set forth in Rule 13d-3 under the Exchange Act.

2.5.

“Board” means the Board of Directors of the Company.

2.6.

“Cash-Based Awards” means an Award Granted under Section 6.8 of the Plan.

2.7.

“Cause” means,

(a)

if  the  applicable  Participant  is  party  to  an  effective  employment,  consulting,  severance  or
similar agreement with the Company or a Subsidiary, and such term is defined therein, “Cause” shall have the
meaning provided in such agreement;

(b)

if the applicable Participant is not a party to an effective employment, consulting, severance or
similar  agreement  or  if  no  definition  of  “Cause”  is  set  forth  in  the  applicable  employment,  consulting,
severance  or  similar  agreement,  “Cause”  shall  have  the  meaning  provided  in  the  applicable  Award
Agreement; or

(c)

if  neither  (a)  nor  (b)  applies,  then  “Cause”  shall  mean  (i)  engaging  in  (A)  willful  or  gross
misconduct or (B) willful or gross neglect; (ii) failing to adhere to the directions of superiors or the Board or
the written policies and practices of the Company or its Subsidiaries or Affiliates; (iii) the commission of a
felony  or  a  crime  involving  any  of  the  following:  moral  turpitude,  dishonesty,  breach  of  trust  or  unethical
business  conduct;  or  the  commission  of  any  crime  involving  the  Company  or  its  Subsidiaries  or  Affiliates;
(iv)  fraud,  misappropriation  or  embezzlement;  (v)  a  material  breach  of  the  Participant’s  employment
agreement (if any) with the Company or its Subsidiaries or Affiliates, whether or not such breach results in
the  termination  of  the  Participant’s  employment;  (vi)  acts  or  omissions  constituting  a  material  failure  to
perform substantially and adequately the duties assigned to the Participant; (vii) any illegal act detrimental to
the  Company  or  its  Subsidiaries  or  Affiliates;  (viii)  repeated  failure  to  devote  substantially  all  of  the
Participant’s  business  time  and  efforts  to  the  Company  if  required  by  the  Participant’s  employment
agreement;  (ix)  the  Participant’s  abuse  of  illegal  drugs  and  other  controlled  substances  or  the  Participant’s
habitual intoxication; or (x) any other action for which the Participant’s employment may be terminated under
the  Participant’s  employment  agreement,  if  any,  or  for  which  applicable  law  permits  summary  dismissal
without notice.

2.8.

“Change in Control” means, after the Effective Date:

(a)

if  the  applicable  Participant  is  party  to  an  effective  employment,  consulting,  severance  or
similar agreement with the Company or a Subsidiary, and such term is defined therein, “Change in Control”
shall have the meaning provided in such agreement;

(b)

if the applicable Participant is not a party to an effective employment, consulting, severance or
similar  agreement  or  if  no  definition  of  “Change  in  Control”  is  set  forth  in  the  applicable  employment,
consulting,  severance  or  similar  agreement,  “Change  in  Control”  shall  have  the  meaning  provided  in  the
applicable Award Agreement; or

(c)

if neither (a) nor (b) applies, then “Change in Control” shall mean:

(i)

the  consummation  of  a  reorganization,

 statutory  share  exchange  or
consolidation or similar transaction involving the Company (each, a “Business Combination”), unless,
following such Business Combination, all or substantially all of the individuals and entities that were
the  Beneficial  Owners  of  the  combined  voting  power  of  the  Company’s  outstanding  securities
immediately prior to such Business Combination beneficially own, directly or indirectly, at least 50%
of the combined voting power of the then-outstanding securities of the entity

 merger,

2

resulting from such Business Combination in substantially the same proportions as their ownership of
the combined voting power of the Company’s outstanding securities immediately prior to the Business
Combination;  provided,  however,  that  a  public  offering  of  the  Company’s  securities  shall  not
constitute a Business Combination;

(ii)

any  transaction  as  a  result  of  which  any  person  is  the  Beneficial  Owner,  directly  or
indirectly,  of  securities  of  the  Company  representing  more  than  50%  of  the  total  voting  power
represented by the Company’s then outstanding voting securities.  For purposes of this clause (ii), the
term “person” shall have the same meaning as when used in sections 13(d) and 14(d) of the Exchange
Act,  but  shall  exclude  (x)  a  trustee  or  other  fiduciary  holding  securities  under  an  executive  benefit
plan  of  the  Company  or  of  a  subsidiary  and  (y)  a  corporation  owned  directly  or  indirectly  by  the
stockholders of the Company in substantially the same proportions as their ownership of the common
stock of the Company;

(iii)

the  sale,  transfer,  or  other  disposition  of  all  or  substantially  all  of  the  Company’s
assets, other than to a wholly-owned Subsidiary or to a holding company of which the Company is a
direct or indirect wholly owned subsidiary prior to such transaction;

(iv)

the  consummation  of  a  plan  of  complete  liquidation  or  substantial  dissolution  of  the

Company; or

(v)

a change in the composition of the Board in any two-year period as a result of which
fewer  than  a  majority  of  the  directors  are  Incumbent  Directors.  “Incumbent  Directors”  shall  mean
directors  who  either  (a)  are  directors  of  the  Company  as  of  the  date  hereof  or  (b)  are  elected,  or
nominated  for  election,  to  the  Board  with  the  affirmative  votes  (either  by  a  specific  vote  or  by
approval  of  the  proxy  statement  of  the  Company  in  which  such  person  is  named  as  a  nominee  for
election  as  a  director  without  objection  to  such  nomination)  of  at  least  a  majority  of  the  Incumbent
Directors  at  the  time  of  such  election  or  nomination  (but  shall  not  include  an  individual  whose
election  or  nomination  is  in  connection  with  an  actual  or  threatened  proxy  contest  relating  to  the
election of directors of the Company).

Notwithstanding the foregoing, no event shall constitute a Change in Control with respect to an Award that
constitutes “non-qualified deferred compensation” (within the meaning of Section 409A of the Code) unless such
Change in Control satisfies the requirements of Treasury Regulation Section 1.409A-3(i)(5).

2.9.

“Code” means the Internal Revenue Code of 1986, as amended.

2.10.

“Company”  means  US  Ecology,  Inc.  (formerly  known  as  US  Ecology  Parent,  Inc.),  a  Delaware

corporation, or any successor corporation.

2.11.

“Committee” means the Compensation  Committee of the Board.  The Committee shall have at least
two members, each of whom shall be a “non-employee director” as defined in Rule 16b-3 under the Exchange Act
and an “outside director” as defined in Section 162(m) of the

3

Code and the regulations thereunder, and, if applicable, shall meet the independence requirements of the applicable
stock exchange, quotation system or other regulatory organization on which Shares are traded.

2.12.

“Consultant” means an individual other than an Employee or Non-Employee Director who provides

bona fide services to the Company or a Subsidiary.

2.13.

“Disability” means,

(a)

if  the  applicable  Participant  is  party  to  an  effective  employment,  consulting,  severance  or
similar agreement with the Company or a Subsidiary, and such term is defined therein, “Disability” shall have
the meaning provided in such agreement;

(b)

if the applicable Participant is not a party to an effective employment, consulting, severance or
similar  agreement  or  if  no  definition  of  “Disability”  is  set  forth  in  the  applicable  employment,  consulting,
severance  or  similar  agreement,  “Disability”  shall  have  the  meaning  provided  in  the  applicable  Award
Agreement; or

(c)

if  neither  (a)  nor  (b)  applies,  then  “Disability”  shall  mean  that  the  Participant  is  unable  to
engage  in  any  substantial  gainful  activity  by  reason  of  any  medically  determinable  physical  or  mental
impairment  which  can  be  expected  to  result  in  death  or  which  has  lasted  or  can  be  expected  to  last  for  a
continuous period of not less than 12 months.

2.14.

“Effective  Date” means  the  date  on  which  the  Plan  becomes  effective,  which  shall  be  the  date  on

which the closing of the Parent Merger (as defined in the Merger Agreement) occurs.

2.15.

“Employee” means an individual who is an officer or an employee of the Company or a Subsidiary.

2.16.

“Exchange Act” means the Securities Exchange Act of 1934, as amended.

2.17.

“Fair Market Value” means, on any given date (i) the average of the high and low sale prices reported
as  having  occurred  on  the  NASDAQ  Global  Market  System  (or  other  principal  exchange  or  market  on  which  the
Shares are traded or listed) on such date, or, if no sale was made on such date on such principal exchange or market,
on the last preceding day on which the Shares were traded or listed; or (ii) if (i) does not apply, such value as the
Committee in its discretion may in good faith determine (such determination shall be made (a) in accordance with
Section 409A of the Code and the regulations thereunder to the extent applicable and (b) in accordance with Section
422 of the Code and the regulations thereunder to the extent the Award granted is intended to be an Incentive Stock
Option).

2.18.

“Good Reason” means,

(a)

if  the  applicable  Participant  is  party  to  an  effective  employment,  consulting,  severance  or
similar agreement with the Company or a Subsidiary, and such term is defined therein, “Good Reason” shall
have the meaning provided in such agreement;

4

(b)

if the applicable Participant is not a party to an effective employment, consulting, severance or
similar agreement or if no definition of “Good Reason” is set forth in the applicable employment, consulting,
severance  or  similar  agreement,  “Good  Reason”  shall  have  the  meaning  provided  in  the  applicable  Award
Agreement; or

(c)

if neither (a) nor (b) applies, then “Good Reason” shall mean, following a Change in Control,
unless cured by the Company within 30 days following notice from the Participant thereof, (i) a relocation of
the  Participant’s  principal  place  of  employment  or  other  service  that  increases  the  Participant’s  one-way
commute by more than 50 miles; (ii) a material diminution in the Participant’s duties or responsibilities; or
(iii) a decrease in the Participant’s  base salary or annual bonus opportunity,  other than a decrease resulting
from an across-the-board reduction in salaries or annual bonus opportunities applicable to similarly situated
employees or the failure to meet performance criteria applicable to incentive compensation.

2.19.

“Grant Date” means the date specified by the Committee on which a grant of an Award shall become

effective, which shall not be earlier than the date on which the Committee takes action with respect thereto.

2.20.

“Incentive Stock Option” means an Option or portion thereof intended to meet the requirements of an
incentive stock option as defined in Section 422 of the Code and designated as an Incentive Stock Option, and if the
Committee  does  not  designate  an  Option  as  an  Incentive  Stock  Option  in  the  Award  Agreement,  the  terms  of  the
Award Agreement for such Option hereby provide that the Option will not be treated as an Incentive Stock Option
under Section 422 of the Code.

2.21.

“Non-Employee Director” means a member of the Board who is not an Employee.

2.22.

“Non-Qualified Option” means an Option or portion thereof that does not qualify as or is not intended

to be an Incentive Stock Option or that is not designated as an Incentive Stock Option in the Award Agreement.

2.23.

“Option”  means  a  right  granted  under  Section  6.1  of  the  Plan  to  purchase  a  specified  number  of

Shares at a specified price.  An Option may be an Incentive Stock Option or a Non-Qualified Option.

2.24.

“Other Stock-Based Awards” means a right granted under Section 6.7 of the Plan.

2.25.

“Participant” means any Employee, Non-Employee Director or Consultant who receives an Award.

2.26.

“Performance  Goals”  means  any  goals  established  by  the  Committee  in  its  sole  discretion,  the
attainment  of  which  is  substantially  uncertain  at  the  time  such  goals  are  established.  Performance  Goals  may  be
described  in  terms  of  Company-wide  objectives  or  objectives  that  are  related  to  the  performance  of  the  individual
Participant  or  a  Subsidiary,  division,  department  or  function  within  the  Company  or  Subsidiary  in  which  the
Participant  is  employed.    Performance  Goals  may  be  measured  on  an  absolute  or  relative  basis.    Relative
performance  may  be  measured  by  a  group  of  peer  companies,  by  a  financial  market  index  or  by  another  external
measure.

5

Performance  Goals  may  be  based  upon:  specified  levels  of  or  increases  in  the  Company’s,  a  division’s  or  a
Subsidiary’s return on capital, equity or assets; earnings measures/ratios (on a gross, net, pre-tax or post-tax basis),
including diluted earnings per share, total earnings, operating earnings, earnings growth, earnings before interest and
taxes  (EBIT)  and  earnings  before  interest,  taxes,  depreciation  and  amortization  (EBITDA);  net  economic  profit
(which is operating earnings minus a charge to capital); net income; operating income; safety and/or environmental
record; sales; sales growth; gross margin; direct margin; share price (including but not limited to growth  measures
and  total  stockholder  return),  operating  profit;  operating  efficiency;  costs;  per  period  or  cumulative  cash  flow
(including but not limited to operating cash flow and free cash flow) or cash flow return on investment (which equals
net  cash  flow  divided  by  total  capital);  inventory  turns;  financial  return  ratios;  enterprise  value;  economic  value
added  or  other  value  added  measurements;  revenue;  market  share;  balance  sheet  measurements  such  as  receivable
turnover; improvement in or attainment of expense levels; improvement in or attainment of working capital levels;
debt reduction; strategic innovation, including but not limited to entering into, substantially completing, or receiving
payments  under,  relating  to,  or  deriving  from  a  joint  development  agreement,  licensing  agreement,  or  similar
agreement;  completion  of  acquisitions,  business  expansion  or  divestitures  of  the  Company,  a  division  or  a
Subsidiary;  implementation  of  critical  projects  or  related  milestones;  achievement  of  operational  or  efficiency
milestones;  customer  or  employee  satisfaction;  individual  objectives;  any  financial  or  other  measurement  deemed
appropriate by the Committee as it relates to the results of operations or other measurable progress of the Company
and its Subsidiaries (or any business unit of the Company or any of its Subsidiaries); and any combination of any of
the foregoing criteria.  Subject to Section 7.4, if the Committee determines that a change in the business, operations,
corporate  structure  or  capital  structure  of  the  Company,  or  the  manner  in  which  it  conducts  its  business,  or  other
events  or  circumstances  render  the  Performance  Goals  unsuitable,  the  Committee  may  modify  such  Performance
Goals  or  the  related  minimum  acceptable  level  of  achievement,  in  whole  or  in  part,  as  the  Committee  deems
appropriate and equitable.

2.27.

“Performance  Period”  means  the  period,  which  shall  not  be  less  than  one  year,  selected  by  the
Committee during which the performance of the Company, any Subsidiary, any department of the Company or any
Subsidiary, or any individual is measured for the purpose of determining the extent to which a Performance Goal has
been achieved.

2.28.

“Performance Stock” means Shares awarded by the Committee under Section 6.4 of the Plan that are

subject to Performance Goals.

2.29.

“Performance  Stock Unit”  means  the  right  granted  under  Section  6.6  of  the  Plan  to  receive,  on  the
date  of  settlement,  one  Share  or  an  amount  equal  to  the  Fair  Market  Value  of  one  Share  that  is  subject  to
Performance Goals.  Performance Stock Units may be settled in cash, Shares or any combination thereof; provided,
however, that unless otherwise provided in an Award Agreement, Performance Stock Units shall be settled in Shares.

2.30.

“Person” means an individual, corporation, partnership, association, limited liability company, estate

or other entity.

2.31.

“Qualified Performance-Based Award” has the meaning set forth in Section 7.1.

6

2.32.

“Restricted Stock” means Shares awarded by the Committee under Section 6.3 of the Plan.

2.33.

“Restricted Stock Unit” means the right granted under Section 6.5 of the Plan to receive, on the date of
settlement,  one  Share  or  an  amount  equal  to  the  Fair  Market  Value  of  one  Share.    Restricted  Stock  Units  may  be
settled in cash, Shares or any combination thereof; provided, however, that unless otherwise provided in an Award
Agreement, Restricted Stock Units shall be settled in Shares.

2.34.
subject to forfeiture.

“Restriction Period” means the period during which Restricted Stock and Restricted Stock Units are

2.35.

“SAR”  means  a  stock  appreciation  right  awarded  by  the  Committee  under  Section  6.2  of  the  Plan.
 SARs may be settled in cash, Shares or any combination thereof; provided, however, that unless otherwise provided
in an Award Agreement, SARs shall be settled in Shares.

2.36.

“Securities Act” means the Securities Act of 1933, as amended.

2.37.

“Share” means a share of the Company’s common stock, par value $0.01, or any security into which

Shares are converted by reason of any transaction or event of a type described in Section 9.

2.38.

“Subsidiary” means any corporation, partnership, joint venture or other business entity of which 50%

or more of the outstanding voting power is beneficially owned, directly or indirectly, by the Company.

2.39.

“Ten  Percent  Stockholder”  means  an  individual  who  on  any  given  date  is  the  Beneficial  Owner
(taking into account the attribution rules contained in Section 424(d) of the Code) of stock possessing more than 10%
of the total combined voting power of all classes of stock of the Company or a Subsidiary.

Section 3.
Director or Consultant who is selected by the Committee shall be eligible to receive an Award under the Plan.

Eligibility.       Except  as  otherwise  specifically  provided  herein,  any  Employee,  Non-Employee

Section 4.

Administration and Implementation of the Plan.

4.1.

The Plan shall be administered by the Committee.  Any action of the Committee in administering the
Plan  shall  be  final,  conclusive  and  binding  on  all  Persons,  including  the  Company,  its  Subsidiaries,  Participants,
Persons  claiming  rights  from  or  through  Participants  and  stockholders  of  the  Company.    Notwithstanding  the
foregoing, the Committee may delegate to one or more officers or Board members the authority to grant Awards to
eligible individuals other than Non-Employee Directors; provided that the Committee may not delegate authority to
grant  Awards  to  eligible  individuals  who  are  subject  to  the  requirements  of  Rule  16b-3  of  the  Exchange  Act  or
Covered Employees within the meaning of Code Section 162(m) and the regulations thereunder. Any such delegation
shall be subject to the limitations of Section 157(c) of the Delaware General Corporation Law, and the Committee
may revoke any such allocation or delegation at any time for any reason, with or without prior notice.

7

4.2.

Subject to the provisions of the Plan, the Committee shall have full and final authority in its discretion
to (i) select the Employees, Non-Employee Directors and Consultants who will receive Awards pursuant to the Plan;
provided that  Awards  granted  to  Non-Employee  Directors  shall  be  subject  to  ratification  by  the  full  Board;  (ii)
determine  the  type  or  types  of  Awards  to  be  granted  to  each  Participant;  (iii)  determine  the  number  of  Shares  to
which an Award will relate, the terms and conditions of any Award granted under the Plan (including, but not limited
to, restrictions as to vesting, Performance Goals relating to an Award, transferability or forfeiture, exercisability or
settlement of an Award and waivers or accelerations thereof, and waivers of or modifications to Performance Goals
relating  to  an  Award,  based  in  each  case  on  such  considerations  as  the  Committee  shall  determine)  and  all  other
matters to be determined in connection with an Award; (iv) determine the exercise price, base price or purchase price
(if  any)  of  an  Award;  (v)  determine  whether,  to  what  extent,  and  under  what  circumstances  an  Award  may  be
cancelled, forfeited, or surrendered; (vi) determine how a leave of absence will impact an Award, including, without
limitation,  tolling  the  vesting  schedule  or  treating  such  leave  of  absence  as  a  termination  of  employment  or  other
service; (vii) determine whether, and to certify that, Performance Goals to which an Award is subject are satisfied;
(viii)  correct  any  defect  or  supply  any  omission  or  reconcile  any  inconsistency  in  the  Plan,  and  adopt,  amend  and
rescind such rules, regulations, guidelines, forms of agreements and instruments relating to the Plan as it may deem
necessary or advisable; (ix) construe and interpret  the Plan;  and  (x) make  all other  determinations as it may  deem
necessary or advisable for the administration of the Plan.

Section 5.

Shares Subject to the Plan.

5.1.

Subject to adjustment as provided in Section 9 hereof, the total number of Shares available for Awards
under  the  Plan  shall  be  1,500,000  (the  “Plan  Limit”),  of  which  1,500,000  Shares  may  be  issued  pursuant  to  the
exercise  of  Incentive  Stock  Options.    Notwithstanding  the  foregoing,  (i)  Awards  covering  no  more  than  100,000
Shares  may  be  awarded  to  any  Participant  other  than  a  Non-Employee  Director  in  any  one  calendar  year  and  (ii)
Awards covering no more than 25,000 Shares may be awarded to a Non-Employee Director in any one calendar year
(provided that, for purposes of these individual limits, none of the Converted Awards nor any other Awards granted
by  the  Company  through  the  assumption  or  substitution  of  outstanding  grants  from  an  acquired  company  shall
count).  For purposes of determining the number of Shares available for Awards under the Plan, each Award that is
denominated  in  Shares  but  settled  in  cash  shall  count  against  the  Plan  Limit  based  on  the  number  of  Shares
underlying such Award rather than the number of Shares issued in settlement of such Award.  Any Shares tendered
by a Participant in payment of an exercise price for or settlement of an Award or the tax liability with respect to an
Award, including, without limitation, Shares withheld from any such Award, shall not be available for future Awards
hereunder.  Shares awarded under the Plan may be reserved or made available from the Company’s authorized and
unissued  Shares  or  from  Shares  reacquired  (through  open  market  transactions  or  otherwise)  and  held  in  the
Company’s  treasury.    Any  Shares  issued  by  the  Company  through  the  assumption  or  substitution  of  outstanding
grants from an acquired company shall not reduce the number of Shares available for Awards under the Plan.  For the
avoidance  of  doubt,  Shares  issued  pursuant  to  Converted  Awards  shall  be  treated  as if  they  were  issued  under  the
Plan and shall reduce the number of Shares available for issuance under the Plan.

5.2.

If  any  Shares  subject  to  an  Award  are  forfeited  or  terminated  without  the  issuance  of  Shares  or

settlement in cash, any Shares counted against the number of Shares available for

8

issuance pursuant to the Plan with respect to such Award shall, to the extent of any such forfeiture or termination,
again be available for Awards under the Plan; provided, however, that the Committee may adopt other procedures for
the  counting  of  Shares  relating  to  any  Award  to  ensure  appropriate  counting,  avoid  double  counting,  provide  for
adjustments  in  any  case  in  which  the  number  of  Shares  actually  distributed  differs  from  the  number  of  Shares
previously counted in connection with such Award, and if necessary, to comply with applicable law or regulations.

Section 6.
Awards.  Awards may be granted on the terms and conditions set forth in this Section 6.  In addition,
the Committee may impose on any Award or the settlement or exercise thereof, at the Grant Date or thereafter, such
additional terms and conditions, not inconsistent with the provisions of the Plan, as the Committee shall determine,
including  without  limitation  terms  requiring  forfeiture  of Awards  in the event  of the  termination  of a Participant’s
employment or other relationship with the Company or any Subsidiary; provided, however, that, except as provided
in  Sections  7  or  15,  the  Committee  shall  retain  full  power  to  accelerate  or  waive  any  such  additional  term  or
condition as it may have previously imposed.  The right of a Participant to exercise or receive a grant or settlement of
any  Award,  and  the  timing  thereof,  may  be  subject  to  such  Performance  Goals  as  may  be  determined  by  the
Committee.    Each  Award,  and  the  terms  and  conditions  applicable  thereto,  shall  be  evidenced  by  an  Award
Agreement.

6.1.

Options.    Options  give  a  Participant  the  right  to  purchase  a  specified  number  of  Shares  from  the
Company for a specified time period at a fixed exercise price, as provided in the applicable Award Agreement.  The
grant of Options shall be subject to the following terms and conditions:

(a)

Exercise  Price.    The  price  per  share  at  which  Shares  may  be  purchased  upon  exercise  of  an
Option  shall  be determined  by  the  Committee  and  specified  in  the  Award  Agreement,  but  shall  be  not  less
than the Fair Market Value of a Share on the Grant Date.

(b)

Term of Options.  The term of an Option shall be specified in the Award Agreement, but shall

in no event be greater than ten years.

(c)

Exercise of Option.  Each Award Agreement with respect to an Option shall specify the time
or  times  at  which  an  Option  may  be  exercised  in  whole  or  in  part  and  the  terms  and  conditions  applicable
thereto,  including  (i)  a  vesting  schedule  which  may  be  based  upon  the  passage  of  time,  attainment  of
Performance  Goals  or  a  combination  thereof,  (ii)  whether  the  exercise  price  for  an  Option  shall  be  paid  in
cash, Shares or any combination thereof, (iii) the methods of payment, which may include payment through
cashless  and  net  exercise  arrangements,  to  the  extent  permitted  by  applicable  law  and  (iv)  the  methods  by
which, or the time or times at which, Shares will be delivered or deemed to be delivered to Participants upon
the exercise of such Option.

(d)

Termination  of  Employment  or  Other  Service.    Unless  otherwise  provided  in  an  Award
Agreement  or an effective  employment,  consulting,  severance  or similar agreement  with the Company  or a
Subsidiary,  or  as  otherwise  may  be  determined  by  the  Committee,  (i)  upon  a  Participant’s  termination  of
employment or other service with the Company and its Subsidiaries (A) at any time, due to the Participant’s
death or Disability or (B) within 24 months following a Change in Control, by the Company or a Subsidiary

9

without Cause or by the Participant for Good Reason, the unvested portion of such Participant’s Options shall
vest  in  full  (with  any  applicable  Performance  Goals  being  deemed  to  have  been  achieved  at  target  or,  if
greater,  actual  levels),  and  the  Participant’s  Options  shall  remain  exercisable  by  the  Participant  or  the
Participant’s beneficiary or legal representative, as the case may be, for a period 90 days thereafter and (ii)
upon a Participant’s termination of employment or other service with the Company and its Subsidiaries for
any other reason, the unvested portion of such Participant’s Options shall cease to vest and shall be forfeited
with no further compensation  due the Participant  and the vested portion of such Participant’s  Options shall
remain exercisable by the Participant or the Participant’s beneficiary or legal representative, as the case may
be,  for  a  period  of  30  days  thereafter;  provided, however,  that  in  no  event  shall  any  Option  be  exercisable
after  its  stated  term  has  expired.    All  of  a  Participant’s  Options,  whether  or  not  vested,  shall  be  forfeited
immediately upon such Participant’s termination by the Company or a Subsidiary for Cause with no further
compensation due the Participant.

(e)

No Dividend Equivalent Rights.  No Participant shall be entitled to dividend equivalent rights

or payments with respect to any Shares underlying the unexercised portion of the Participant’s Options.

(f)

Incentive  Stock  Options.    The  following  conditions  apply  to  Awards  of  Incentive  Stock

Options in addition to or in lieu of those described above in provisions (a)-(e) of this Section 6.1:

(i)

Eligibility.    Incentive  Stock  Options  may  only  be  granted  to  Participants  who  are

Employees.

(ii)

Exercise Price.  In the case of Ten Percent Stockholder, the price at which a Share may
be  purchased  upon  exercise  of  an  Incentive  Stock  Option  shall  not  be  less  than  110%  of  the  Fair
Market Value of such Share on the Grant Date.

(iii)

Term of Options.  In the case of a Ten Percent Stockholder,  the term of an Incentive

Stock Option shall be no greater than five years.

(iv)

Notice.  Each Participant awarded an Incentive Stock Option under the Plan shall notify
the Company in writing immediately after the date he or she makes a “disqualifying disposition” (as
defined  in  Section  421(b)  of  the  Code)  of  any  Shares  acquired  pursuant  to  the  exercise  of  such
Incentive Stock Option.  The Company may, if determined by the Committee and in accordance with
procedures established by it, retain possession of any Shares acquired pursuant to the exercise of an
Incentive Stock Option as agent for the applicable Participant until the end of any period during which
a  disqualifying  disposition  could  occur,  subject  to  complying  with  any  instructions  from  such
Participant as to the sale of such Shares.  The aggregate Fair Market Value, determined as of the Grant
Date,  for  Awards  granted  under  the  Plan  (or  any  other  stock  option  plan  required  to  be  taken  into
account under Section 422(d) of the Code) that are intended to be Incentive Stock Options which are
first exercisable by the Participant during any calendar year shall not exceed $100,000.  To the extent
an Award purporting to be an Incentive Stock

10

Option  exceeds  the  limitation  in  the  previous  sentence,  the  portion  of  the  Award  in  excess  of  such
limit shall be a Non-Qualified Option.

(v)

Limits on Transferability.  Notwithstanding anything in Section 13 to the contrary, no
Incentive Stock Option shall be pledged, encumbered, or hypothecated to, or in favor of, or subject to
any  lien,  obligation,  or  liability  of  such  Participant  to,  any  party,  other  than  the  Company  or  any
Subsidiary, or assigned or transferred by such Participant otherwise than by will or the laws of descent
and distribution, and such Awards and rights shall be exercisable during the lifetime of the Participant
only by the Participant or his or her guardian or legal representative.

6.2.

Stock Appreciation Rights.  An SAR shall confer on the Participant a right to receive, upon exercise
thereof, the excess of (i) the Fair Market Value of one Share on the date of exercise over (ii) the grant price of the
SAR as determined by the Committee, but which may never be less than the Fair Market Value of one Share on the
Grant Date.  The grant of SARs shall be subject to the following terms and conditions:

(a)

General.  Each Award Agreement with respect to an SAR shall specify the number of SARs
granted, the grant price of the SAR, the time or times at which an SAR may be exercised in whole or in part
(including vesting upon the passage of time, the attainment of Performance Goals, or a combination thereof),
the method  of exercise,  method  of settlement  (in cash,  Shares  or a combination  thereof),  method  by which
Shares  will  be  delivered  or  deemed  to  be  delivered  to  Participants  (if  applicable)  and  any  other  terms  and
conditions of any SAR.

(b)

Termination  of  Employment  or  Other  Service.    Unless  otherwise  provided  in  an  Award
Agreement  or an effective  employment,  consulting,  severance  or similar agreement  with the Company  or a
Subsidiary,  or  as  otherwise  may  be  determined  by  the  Committee,  (i)  upon  a  Participant’s  termination  of
employment or other service with the Company and its Subsidiaries (A) at any time, due to the Participant’s
death or Disability or (B) within 24 months following a Change in Control, by the Company or a Subsidiary
without Cause or by the Participant for Good Reason, the unvested portion of such Participant’s SARs shall
vest  in  full  (with  any  applicable  Performance  Goals  being  deemed  to  have  been  achieved  at  target  or,  if
greater,  actual  levels)  and  the  Participant’s  SARs  shall  remain  exercisable  by  the  Participant  or  the
Participant’s  beneficiary  or  legal  representative,  as  the  case  may  be,  for  a  period  90  days  thereafter  and
(ii) upon a Participant’s termination of employment or other service with the Company and its Subsidiaries
for any other reason, the unvested portion of such Participant’s SARs shall cease to vest and shall be forfeited
with  no  further  compensation  due  the  Participant  and  the  vested  portion  of  such  Participant’s  SARs  shall
remain exercisable by the Participant or the Participant’s beneficiary or legal representative, as the case may
be, for a period of 30 days thereafter; provided, however, that in no event shall any SAR be exercisable after
its stated term has expired.  All of a Participant’s SARs, whether or not vested, shall be forfeited immediately
upon such Participant’s termination by the Company or a Subsidiary for Cause with no further compensation
due the Participant.

11

(c)

Term.  The term of an SAR shall be specified in the Award Agreement, but shall in no event

be greater than ten years.

(d)

No Dividend Equivalent Rights.  No Participant shall be entitled to dividend equivalent rights

or payments with respect to any Shares underlying the Participant’s SARs.

6.3.

Restricted Stock.  An Award of Restricted Stock is a grant by the Company of a specified number of
Shares to the Participant,  which Shares are subject  to forfeiture  upon the happening  of specified  events  during  the
Restriction Period.  An Award of Restricted Stock shall be subject to the following terms and conditions:

(a)

General.  Each Award Agreement with respect to Restricted Stock shall specify the duration of
the  Restriction  Period,  if  any,  and/or  each  installment  thereof,  the  conditions  under  which  the  Restricted
Stock  may  be  forfeited  to  the  Company,  and  the  amount,  if  any,  the  Participant  must  pay  to  receive  the
Restricted Stock.  Such restrictions may include a vesting schedule based upon the passage of time.

(b)

Transferability.  During the Restriction Period, if any, the transferability of Restricted Stock
shall  be  prohibited  or  restricted  in  the  manner  and  to  the  extent  prescribed  in  the  applicable  Award
Agreement.    Such  restrictions  may  include,  without  limitation,  rights  of  repurchase  or  first  refusal  in  the
Company  or  provisions  subjecting  the  Restricted  Stock  to  a  continuing  substantial  risk  of  forfeiture  in  the
hands of any transferee.

(c)

Stockholder  Rights.    Unless  otherwise  provided  in  the  applicable  Award  Agreement,  during
the  Restriction  Period  the  Participant  shall  have  all  the  rights  of  a  stockholder  with  respect  to  Restricted
Stock, including, without limitation, the right to receive dividends thereon (whether in cash or Shares), at the
same time such dividends are paid on Shares generally, and to vote such shares of Restricted Stock.

(d)

Termination  of  Employment  or  Other  Service.    Unless  otherwise  provided  in  an  Award
Agreement  or an effective  employment,  consulting,  severance  or similar agreement  with the Company  or a
Subsidiary,  or  as  otherwise  may  be  determined  by  the  Committee,  (i)  upon  a  Participant’s  termination  of
employment or other service with the Company and its Subsidiaries (A) at any time, due to the Participant’s
death or Disability or (B) within 24 months following a Change in Control, by the Company or a Subsidiary
without Cause or by the Participant for Good Reason, the unvested portion of each Award of Restricted Stock
held  by such Participant  shall  vest  in full  and the applicable  Restriction  Period  shall  expire  and (ii)  upon  a
Participant’s termination of employment or other service with the Company and its Subsidiaries for any other
reason,  the  unvested  portion  of  each  Award  of  Restricted  Stock  held  by  such  Participant  shall  be  forfeited
with no further compensation due the Participant.

6.4.

Performance  Stock.    An  Award  of  Performance  Stock  is  a  grant  by  the  Company  of  a  specified
number of Shares to the Participant, which Shares are conditional on the achievement of Performance Goals during
the Performance Period and subject to forfeiture upon the happening

12

of specified events during the Restriction Period.  An Award of Performance Stock shall be subject to the following
terms and conditions:

(a)

General.  Each Award Agreement with respect to Performance Stock shall specify the duration
of the Performance Period and the Restriction Period, if any, and/or each installment thereof, the Performance
Goals  applicable  to  the  Performance  Stock  and  the  conditions  under  which  the  Performance  Stock  may  be
forfeited to the Company, and the amount, if any, the Participant must pay to receive the Performance Stock.
 Such restrictions may include a vesting schedule based on the attainment of Performance Goals measured on
a milestone basis or in respect of the Performance Period.

(b)

Transferability.  During the Restriction Period, if any, the transferability of Performance Stock
shall  be  prohibited  or  restricted  in  the  manner  and  to  the  extent  prescribed  in  the  applicable  Award
Agreement.    Such  restrictions  may  include,  without  limitation,  rights  of  repurchase  or  first  refusal  in  the
Company or provisions subjecting the Performance Stock to a continuing substantial risk of forfeiture in the
hands of any transferee.

(c)

Stockholder  Rights.    Unless  otherwise  provided  in  the  applicable  Award  Agreement,  during
the Restriction  Period  the Participant  shall  have  all the rights  of a stockholder  with  respect  to Performance
Stock; provided that  the  Participant  shall  not  have  the  right  to  receive  or  accumulate  dividends  paid  on  or
with  respect  to  Performance  Stock  during  the  applicable  Performance  Period  (whether  in  cash  or  Shares),
which dividends shall be forfeited to the Company with no compensation due therefor; provided, further, that
the Participant  shall have the right to receive dividends paid after the expiration of the Performance Period
with respect to earned Shares, whether or not such Shares are subject to restriction under Section 6.3, at the
same time such dividends are paid on Shares generally.

(d)

Termination  of  Employment  or  Other  Service.    Unless  otherwise  provided  in  an  Award
Agreement  or an effective  employment,  consulting,  severance  or similar agreement  with the Company  or a
Subsidiary,  or  as  otherwise  may  be  determined  by  the  Committee,  (i)  upon  a  Participant’s  termination  of
employment or other service with the Company and its Subsidiaries (A) at any time, due to the Participant’s
death or Disability or (B) within 24 months following a Change in Control, by the Company or a Subsidiary
without  Cause  or by the  Participant  for Good  Reason,  the unvested  portion  of each  Award  of Performance
Stock  held  by  such  Participant  shall  vest  in  full  (with  the  Performance  Goals  being  deemed  to  have  been
achieved at target or, if greater, actual levels) and the applicable Restriction Period shall expire and (ii) upon
a  Participant’s  termination  of  employment  or  other  service  with  the  Company  and  its  Subsidiaries  for  any
other  reason,  the  unvested  portion  of  each  Award  of  Performance  Stock  held  by  such  Participant  shall  be
forfeited with no further compensation due the Participant.

6.5.

Restricted  Stock  Units.    Restricted  Stock  Units  are  solely  a  device  for  the  measurement  and
determination  of  the  amounts  to  be  paid  to  a  Participant  under  the  Plan.  Restricted  Stock  Units  do  not  constitute
Shares  and  shall  not  be  treated  as  (or  as  giving  rise  to)  property  or  as  a  trust  fund  of  any  kind.    The  right  of  any
Participant in respect of an Award of

13

Restricted  Stock  Units  shall  be  no  greater  than  the  right  of  any  unsecured  general  creditor  of  the  Company.    The
grant of Restricted Stock Units shall be subject to the following terms and conditions:

(a)

Restriction  Period.    Each  Award  Agreement  with  respect  to  Restricted  Stock  Units  shall
specify the duration of the Restriction Period, if any, and/or each installment thereof and the conditions under
which such Award may be forfeited to the Company.  Such restrictions may include a vesting schedule based
upon the passage of time.

(b)

Termination  of  Employment  or  Other  Service.    Unless  otherwise  provided  in  an  Award
Agreement  or an effective  employment,  consulting,  severance  or similar agreement  with the Company  or a
Subsidiary,  or  as  otherwise  may  be  determined  by  the  Committee,  (i)  upon  a  Participant’s  termination  of
employment or other service with the Company and its Subsidiaries (A) at any time, due to the Participant’s
death or Disability or (B) within 24 months following a Change in Control, by the Company or a Subsidiary
without Cause or by the Participant for Good Reason, the unvested portion of each Award of Restricted Stock
Units  credited  to  such  Participant  shall  vest  in  full,  the  applicable  Restriction  Period  shall  expire  and  each
such  Award  of  Restricted  Stock  Units  shall  be  settled  in  accordance  with  Section  6.5(c)  and  (ii)  upon  a
Participant’s termination of employment or other service with the Company and its Subsidiaries for any other
reason,  the  unvested  portion  of  each  Award  of  Restricted  Stock  Units  credited  to  such  Participant  shall  be
forfeited with no compensation due the Participant.

(c)

Settlement.    Unless  otherwise  provided  in  an  Award  Agreement,  subject  to  the  Participant’s
continued employment or other service with the Company or a Subsidiary from the Grant Date through the
expiration  of  the  Restriction  Period  (or  applicable  portion  thereof),  the  vested  portion  of  an  Award  of
Restricted  Stock  Units  shall  be  settled  within  30  days  after  the  expiration  of  the  Restriction  Period  (or
applicable portion thereof).

(d)

Stockholder Rights.  Nothing contained in the Plan shall be construed to give any Participant
rights as a stockholder with respect to an Award of Restricted Stock Units (including, without limitation, any
voting, dividend or derivative or other similar rights).

6.6.

Performance  Stock  Units.    Performance  Stock  Units  are  solely  a  device  for  the  measurement  and
determination of the amounts to be paid to a Participant under the Plan.  Performance Stock Units do not constitute
Shares  and  shall  not  be  treated  as  (or  as  giving  rise  to)  property  or  as  a  trust  fund  of  any  kind.    The  right  of  any
Participant in respect of an Award of Performance Stock Units shall be no greater than the right of any unsecured
general creditor of the Company.  The grant of Performance Stock Units shall be subject to the following terms and
conditions:

(a)

Restriction  Period.    Each  Award  Agreement  with  respect  to  Performance  Stock  Units  shall
specify  the  duration  of  the  Performance  Period  and  the  Restriction  Period,  if  any,  and/or  each  installment
thereof, the Performance Goals applicable to the Performance Stock Units and the conditions under which the
Performance Stock Units may

14

be  forfeited  to  the  Company.    Such  restrictions  may  include  a  vesting  schedule  based  on  the  attainment  of
Performance Goals measured on a milestone basis or in respect of the Performance Period.

(b)

Termination  of  Employment  or  Other  Service.    Unless  otherwise  provided  in  an  Award
Agreement  or an effective  employment,  consulting,  severance  or similar agreement  with the Company  or a
Subsidiary,  or  as  otherwise  may  be  determined  by  the  Committee,  (i)  upon  a  Participant’s  termination  of
employment or other service with the Company and its Subsidiaries (A) at any time, due to the Participant’s
death or Disability or (B) within 24 months following a Change in Control, by the Company or a Subsidiary
without  Cause  or by the Participant  for Good  Reason,  the unvested  portion  of each  Award  of Performance
Stock  Units  credited  to  such  Participant  shall  vest  in  full  (with  any  applicable  Performance  Goals  being
deemed  to  have  been  achieved  at  target  or,  if  greater,  actual  levels),  the  applicable  Restriction  Period  shall
expire and each such Award of Performance  Stock Units shall be settled in accordance  with Section 6.6(c)
and  (ii)  upon  a  Participant’s  termination  of  employment  or  other  service  with  the  Company  and  its
Subsidiaries for any other reason, the unvested portion of each Award of Performance Stock Units credited to
such Participant shall be forfeited with no compensation due the Participant.

(c)

Settlement.    Unless  otherwise  provided  in  an  Award  Agreement,  subject  to  the  Participant’s
continued employment or other service with the Company or a Subsidiary from the Grant Date through the
expiration  of  the  Restriction  Period  (or  applicable  portion  thereof),  the  vested  portion  of  an  Award  of
Performance  Stock  Units  shall  be  settled  within  30  days  after  the  expiration  of  the  Restriction  Period  (or
applicable portion thereof).

(d)

Stockholder Rights.  Nothing contained in the Plan shall be construed to give any Participant
rights as a stockholder with respect to an Award of Performance Stock Units (including, without limitation,
any voting, dividend or derivative or other similar rights).

6.7.

Other Stock-Based Awards.  The Committee is authorized, subject to limitations under applicable law,
to grant to Participants any type of award (in addition to those Awards provided in Section 6.1, 6.2, 6.3, 6.4, 6.5 or
6.6  hereof)  that  is  payable  in,  or  valued  in  whole  or  in  part  by  reference  to,  Shares,  and  that  is  deemed  by  the
Committee  to  be  consistent  with  the  purposes  of  the  Plan.    Such  Awards  may  include  deferred  Shares  or  Share
purchase Awards, as well as the outright grant of Shares that are not subject to any restrictions as to vesting or other
forfeiture conditions, and shall be subject to such additional terms as the Committee determines in its sole discretion,
consistent with provisions of the Plan.

(a)

Termination  of  Employment  or  Other  Service.    Unless  otherwise  provided  in  an  Award
Agreement  or an effective  employment,  consulting,  severance  or similar agreement  with the Company  or a
Subsidiary,  or  as  otherwise  may  be  determined  by  the  Committee,  (i)  upon  a  Participant’s  termination  of
employment or other service with the Company and its Subsidiaries (A) at any time, due to the Participant’s
death or Disability or (B) within 24 months following a Change in Control, by the Company or a Subsidiary
without Cause or by the Participant for Good Reason, the unvested portion of each Other

15

Stock-Based Award held by such Participant shall vest in full (with any applicable Performance Goals being
deemed to have been achieved at target or, if greater, actual levels) and (ii) upon a Participant’s termination
of  employment  or  other  service  with  the  Company  and  its  Subsidiaries  for  any  other  reason,  the  unvested
portion of each Other Stock-Based Award shall be forfeited with no further compensation due the Participant.

6.8.

Cash-Based Awards.  The Committee is hereby authorized to grant Cash-Based Awards denominated
in cash in such amounts and subject to such terms and conditions as the Committee may determine.  Each such Cash-
Based  Award  shall  specify  a  payment  amount  or  payment  range  as  determined  by  the  Committee.    Cash-Based
Awards  may  be  based  on  the  attainment  of  Performance  Goals  and  designed  to  constitute  Qualified  Performance-
Based Awards.  The maximum amount payable pursuant to Cash-Based Awards granted to a Participant during any
one calendar year shall not exceed $10,000,000.

(a)

Termination  of  Employment  or  Other  Service.    Unless  otherwise  provided  in  an  Award
Agreement  or an effective  employment,  consulting,  severance  or similar agreement  with the Company  or a
Subsidiary,  or  as  otherwise  may  be  determined  by  the  Committee,  (i)  upon  a  Participant’s  termination  of
employment or other service with the Company and its Subsidiaries (A) at any time, due to the Participant’s
death or Disability or (B) within 24 months following a Change in Control, by the Company or a Subsidiary
without Cause or by the Participant for Good Reason, the unvested portion of each Cash-Based Award held
by  such  Participant  shall  vest  in  full  (with  any  applicable  Performance  Goals  being  deemed  to  have  been
achieved at target or, if greater, actual levels) and become payable and (ii) upon a Participant’s termination of
employment or other service with the Company and its Subsidiaries for any other reason, the unvested portion
of each Cash-Based Award held by such Participant shall be forfeited with no further compensation due the
Participant.

Section 7.

Code Section 162(m).

7.1.

General Requirements.  If at any time the Company is subject to Code Section 162(m), the Committee
may  grant  Awards  that  satisfy  the  following  requirements  for  the  exception  to  Code  Section  162(m)  for  qualified
performance-based compensation (“Qualified Performance-Based Awards”):

(a)

Eligibility.    Only  Participants  who  are  “Covered  Employees”  within  the  meaning  of
Section  162(m)  of  the  Code  shall  be  eligible  to  receive  Qualified  Performance-Based  Awards.  The
Committee  shall  designate  in  its  sole  discretion  which  Covered  Employees  shall  be  Participants  for  a
Performance Period within the earlier of the (i) first 90 days of the Performance Period and (ii) the lapse of
25% of the Performance Period.

(b)

Performance Goals.  The Committee shall establish in writing within the earlier of the (i) first
90 days of a Performance Period and (ii) the lapse of 25% of the Performance Period, and in any event, while
the outcome is substantially uncertain, (x) Performance Goals for the Performance Period, and (y) in respect
of  such  Performance  Goals,  a  minimum  acceptable  level  of  achievement  below  which  no  Award  shall  be
made, and an objective formula or other method for determining the Award to be made if

16

performance is at or above such minimum acceptable level but falls short of the maximum achievement of the
specified Performance Goals.

(c)

Certification.  Following the completion of a Performance Period, the Committee shall review
and certify in writing whether, and to what extent, the Performance Goals for the Performance Period have
been  achieved  and,  if  so,  calculate  and  certify  in  writing  the  amount  of  the  Qualified  Performance-Based
Awards  earned  for  the  period  based  upon  the  Performance  Goals  and  the  related  formulas  or  methods  as
determined  pursuant  to  Section  7.1(b).    The  Committee  shall  then  determine  the  actual  number  of  Shares
issuable  under  each  Participant’s  Award  for  the  Performance  Period,  and,  in  doing  so,  may  reduce  or
eliminate the amount of the Award, as permitted in the Award Agreement.  In no event shall the Committee
have the authority to increase Award amounts to any Covered Employee.

(d)

Termination of Employment.  Notwithstanding anything herein to the contrary, the Committee
shall  not  permit  the  payment  or  other  settlement  of  a  Qualified  Performance-Based  Award  following  a
Participant’s termination of employment with the Company and its Subsidiaries for any reason other than the
Participant’s death or Disability or following a Change in Control unless such Qualified Performance-Based
Award  would  have  been  paid  or  settled  based  on  the  actual  outcome  of  the  applicable  Performance  Goals
during the applicable Performance Period absent such termination of employment.  Notwithstanding anything
herein  to  the  contrary,  unless  otherwise  provided  in  an  Award  Agreement  or  an  effective  employment,
consulting,  severance  or  similar  agreement  with  the  Company  or  a  Subsidiary,  or  as  otherwise  may  be
determined  by  the  Committee,  upon  a  Participant’s  termination  of  employment  with  the  Company  and  its
Subsidiaries (i) at any time, due to the Participant’s death or Disability or (ii) within 24 months following a
Change in Control, by the Company or a Subsidiary without Cause or by the Participant for Good Reason, the
Participant’s  Qualified  Performance-Based  Awards  shall  be  paid  or  settled  in  full  based  on  the  assumption
that  the  applicable  Performance  Goals  have  been  achieved  at  target  or,  if  greater,  actual  levels.    Upon  a
Participant’s  termination  of  employment  with  the  Company  and  its  Subsidiaries  for  Cause,  100%  of  a
Participant’s Qualified Performance-Based Awards shall be forfeited with no compensation due therefor.

7.2.

Notwithstanding anything in Section 5.1 to the contrary, the maximum number of Shares underlying
Qualified Performance-Based Awards that may be granted to a Participant in any one Performance Period is 100,000
and the maximum number of shares that may be granted to a Participant pursuant to Options and SARs is 100,000, in
each case, subject to adjustment as provided in Section 9.  The maximum amount payable to a Participant pursuant to
Cash-Based  Awards  that  are  intended  to  constitute  Qualified  Performance-Based  Awards  during  any  one  calendar
year shall not exceed $10,000,000.  For purposes of the foregoing limitations, Converted Awards shall be treated as
if they were granted in the year, and with respect to the performance period, in which the award granted under the
Pre-Merger Plan from which they were converted was granted.

7.3.

The Committee may, without the consent of a Participant, make any amendment, alteration or other

modification to the Plan as would have a material adverse affect on the rights

17

of such Participant if such modification is necessary to ensure a deduction under Code Section 162(m).

7.4.

The  Committee  is  authorized,  in  its  sole  discretion,  to  adjust  or  modify  a  Performance  Goal  for  a
Performance  Period,  including,  without  limitation,  the  applicable  minimum,  target  and    maximum  levels  of
achievement,  in  connection  with  any  one  or  more  of  the  following  events:  (a)  asset  write-downs;  (b)  significant
litigation or claim judgments or settlements; (c) the effect of changes in tax laws, accounting standards or principles,
or  other  laws  or  regulatory  rules  affecting  reporting  results;  (d)  any  reorganization  and  restructuring  programs  or
change  in  the  corporate  structure  or  capital  structure  of  the  Company;  (e)  extraordinary  nonrecurring  items  as
described  in  Accounting  Principles  Board  Opinion  No.  30  (or  any  successor  pronouncement  thereto)  and/or  in
management’s discussion and analysis of financial condition and results of operations appearing in the Company’s
annual report to stockholders for the applicable year or period; (f) acquisitions or divestitures; (g) any other specific
unusual or nonrecurring events or objectively determinable category thereof; (h) foreign exchange gains and losses;
and  (i)  a  change  in  the  Company’s  fiscal  year.    Except  as  otherwise  provided  above  in  this  Section  7.4,  the
Committee  may not (i) adjust  or otherwise  amend  any Performance  Goal  if such  adjustment  or amendment  would
adversely affect the status of an Award as a Qualified Performance-Based Award; or (ii) change any material term of
a Performance Goal without stockholder approval as required by Section 162(m) and the regulations thereunder.

7.5.

  Other than certain of the Converted Awards, no Awards granted on or after the Effective Date are

intended to be Qualified Performance-Based Awards or shall be subject to this Section 7.

Section 8.
Change in Control.  Unless otherwise provided in an Award Agreement or an effective employment,
consulting, severance or similar agreement with the Company or a Subsidiary, a Change in Control shall not, in and
of itself, accelerate the vesting, settlement or exercisability of outstanding Awards.  Notwithstanding the foregoing
and unless otherwise provided in an Award Agreement or an effective employment, consulting, severance or similar
agreement with the Company or a Subsidiary, if (i) the successor corporation (or its parent) does not agree to assume
an outstanding Award or does not agree to substitute or replace such Award with an award involving the ordinary
shares of such successor corporation (or its parent) on terms and conditions necessary to preserve the rights of the
applicable  Participant  with  respect  to  such  Award,  (ii)  the  securities  of  the  Company  or  the  successor  corporation
will not be publicly traded on a U.S. securities exchange or (iii) the Change in Control is not approved by a majority
of the Incumbent Directors immediately prior to such Change in Control, the Committee, in its sole discretion, may
take one or more of the following actions with respect to all, some or any such Awards: (a) accelerate the vesting,
settlement  and,  if  applicable,  exercisability  of  such  Awards  such  that  the  Awards  are  fully  vested,  settled  and,  if
applicable,  exercisable  (effective  immediately  prior  to  such  Change  in  Control);  provided that  Awards  subject  to
performance-based vesting conditions shall be paid or settled in full based on the actual level of achievement of the
applicable  Performance  Goals  through  the  date  of  the  Change  in  Control  or,  if  doing  so  would  result  in  the
Participant’s receipt of a larger payment or settlement amount, using the applicable target (or, in the case of a Change
in Control described in clause (ii), maximum) level of achievement through the date of such Change in Control rather
than such actual level of achievement; (b) cancel outstanding Options or SARs in exchange for a cash payment in an
amount equal to the excess, if

18

any, of the Fair Market Value of the Shares underlying the unexercised portion of the Option or SAR as of the date
of the Change in Control over the exercise price or grant price, as the case may be, of such portion, provided that any
Option or SAR with an exercise price or grant price, as the case may be, that equals or exceeds the Fair Market Value
of the Shares on the date of the Change in Control shall be cancelled with no payment due the Participant; or (c) take
such  other  actions  as  the  Committee  deems  appropriate  to  preserve  the  rights  of  Participants  with  respect  to  their
Awards.  The judgment of the Committee with respect to any matter referred to in this Section shall be conclusive
and binding upon each Participant without the need for any amendment to the Plan.  Notwithstanding the foregoing,
no Award that constitutes “non-qualified deferred compensation” (within the meaning of Section 409A of the Code)
shall  be  payable  upon  the  occurrence  of  a  Change  in  Control  unless  such  Change  in  Control  satisfies  the
requirements of Treasury Regulation Section 1.409A-3(i)(5).  In addition to the actions described above, and without
the consent of any Participant, effective upon the occurrence of a Change in Control, the Committee may, in its sole
discretion,  terminate  all  Awards  granted  under  the  Plan  that  are  treated  as  “non-qualified  deferred  compensation”
under Section 409A of the Code and settle such  shares for a cash payment equal to the Fair Market Value of such
Shares  or  any  benchmark,  if  any,  provided  that  (1)  such  Change  in  Control  satisfies  the  requirements  of  Treasury
Regulation Section 1.409A-3(i)(5) and (2) all other arrangements that would be aggregated with such Awards under
Section 409A of the Code are terminated  and liquidated  within 30 days before or 12 months after such Change in
Control.

Section 9.

Adjustments upon Changes in Capitalization.

9.1.

In the event that the Committee shall determine that any stock dividend, recapitalization, forward split
or  reverse  split,  reorganization,  merger,  consolidation,  spin-off,  combination,  repurchase  or  share  exchange,
extraordinary or unusual cash distribution or other similar corporate transaction or event, affects the Shares such that
an adjustment is appropriate in order to prevent dilution or enlargement of the rights of Participants under the Plan,
then the Committee shall proportionately and equitably adjust any or all of (i) the number and kind of Shares which
may  thereafter  be  issued  in  connection  with  Awards,  (ii)  the  number  and  kind  of  Shares  issuable  in  respect  of
outstanding Awards, (iii) the aggregate number and kind of Shares available under the Plan, (iv) the limits described
in Section  5 of the  Plan  and  (v)  the  exercise  price  or grant  price  relating  to  any  Award  or,  if  deemed  appropriate,
make  provision  for  a  cash  payment  with  respect  to  any  outstanding  Award;  provided, however,  in  each  case,  that
each adjustment shall be made in a manner consistent with Section 7.

9.2.

In addition, the Committee is authorized to make adjustments in the terms and conditions of, and the
criteria included in, Awards in recognition of unusual or nonrecurring events (including, without limitation, events
described  in  Section  9.1)  affecting  the  Company  or  any  Subsidiary,  or  in  response  to  changes  in  applicable  laws,
regulations,  or  accounting  principles.  Notwithstanding  the  foregoing,  all  adjustments  shall  be  made  in  a  manner
consistent with Section 7 and no adjustment shall be made in a manner that would adversely affect the status of an
Award as a Qualified Performance-Based Award.

Section 10.

Termination and Amendment.

19

10.1. Changes to the Plan and Awards.  The Board may amend, alter, suspend, discontinue, or terminate the
Plan without the consent of the Company’s stockholders or Participants, except that any such amendment, alteration,
suspension, discontinuation, or termination shall be subject to the approval of the Company’s stockholders if (i) such
action would increase the number of Shares subject to the Plan, (ii) such action results in the repricing, replacement
or cash buyout/repurchase of any Option, SAR or other Award, or (iii) such stockholder approval is required by any
applicable  law  or  regulation  or  the  rules  of  any  stock  exchange  on  which  the  Shares  may  then  be  listed,  and  the
Board  may  otherwise,  in  its  discretion,  determine  to  submit  such  other  changes  to  the  Plan  to  the  Company’s
stockholders  for  approval;  provided,  however,  that  without  the  consent  of  an  affected  Participant,  no  amendment,
alteration, suspension, discontinuation, or termination of the Plan may materially and adversely affect the rights of
such  Participant  under  any  outstanding  Award,  except  insofar  as any  such  action  is necessary  to ensure  the  Plan’s
compliance  with  applicable  law  or  regulation  or  the  listing  requirements  of  an  applicable  securities  exchange,
including, without limitation, Code Sections 162(m) or 409A.

10.2. The Committee may waive any conditions or rights under, or amend, alter, suspend, discontinue, or
terminate,  any  Award  theretofore  granted  and  any  Award  Agreement  relating  thereto;  provided,  however,  that
without  the  consent  of  an  affected  Participant,  no  such  amendment,  alteration,  suspension,  discontinuation,  or
termination  of  any  Award  may  materially  and  adversely  affect  the  rights  of  such  Participant  under  such  Award,
except insofar as any such action is necessary to ensure the Plan’s compliance with applicable law or regulation or
the listing requirements of an applicable securities exchange, including, without limitation, Code Sections 162(m) or
409A.

Section 11.
No  Right  to  Award,  Employment  or  Service.    No  Employee,  Consultant  or  Non-Employee  Director
shall have any claim to be granted any Award under the Plan, and there is no obligation that the terms of Awards be
uniform  or  consistent  among  Participants.    Neither  the  Plan  nor  any  action  taken  hereunder  shall  be  construed  as
giving  any  Participant  any  right  to  be  retained  in  the  employ  or  service  of  the  Company  or  any  Subsidiary.    For
purposes  of  this  Plan,  a  transfer  of  employment  or  service  between  the  Company  and  its  Subsidiaries  shall  not  be
deemed  a  termination  of  employment  or  service;  provided,  however,  that  individuals  employed  by,  or  otherwise
providing  services  to,  an  entity  that  ceases  to  be  a  Subsidiary  shall  be  deemed  to  have  incurred  a  termination  of
employment or service, as the case may be, as of the date such entity ceases to be a Subsidiary unless such individual
becomes an employee of, or service provider to, the Company or another Subsidiary as of the date of such cessation.

Section 12.
Taxes.  Each Participant must make appropriate arrangement for the payment of any taxes relating to
an Award granted hereunder.  The Company or any Subsidiary is authorized to withhold from any payment relating
to an Award under the Plan, including from a distribution of Shares or any payroll or other payment to a Participant,
amounts of withholding and other taxes due in connection with any transaction involving an Award, and to take such
other action as the Committee may deem advisable to enable the Company and Participants to satisfy obligations for
the payment of withholding taxes and other tax obligations relating to any Award.  This authority shall include the
ability to withhold or receive Shares or other property and to make cash payments in respect thereof in satisfaction of
a Participant’s tax obligations and to require the Participant to enter into elections in respect of taxes.  Withholding of
taxes in the form of Shares with respect to

20

an Award shall not occur at a rate that exceeds the minimum required statutory federal and state withholding rates.
 Participants who are subject to the reporting requirements of Section 16 of the Exchange Act shall have the right to
pay all or a portion of any withholding or other taxes due in connection with an Award by directing the Company to
withhold  Shares  that  would  otherwise  be  received  in  connection  with  such  Award  up  to  the  minimum  required
withholding amount.

Section 13.
Limits on Transferability; Beneficiaries.  No Award or other right or interest of a Participant under the
Plan shall be pledged, encumbered, or hypothecated to, or in favor of, or subject to any lien, obligation, or liability of
such  Participant  to,  any  party,  other  than  the  Company  or  any  Subsidiary,  or  assigned  or  transferred  by  such
Participant  otherwise  than  by  will  or  the  laws  of  descent  and  distribution,  and  such  Awards  and  rights  shall  be
exercisable during the lifetime of the Participant only by the Participant or his or her guardian or legal representative.
Notwithstanding the foregoing, except as provided in Section 6.1(f)(v), the Committee may, in its discretion, provide
that  Awards  or  other  rights  or  interests  of  a  Participant  granted  pursuant  to  the  Plan  be  transferable,  without
consideration, to immediate family members (i.e., children, grandchildren or spouse), to trusts for the benefit of such
immediate family members and to partnerships in which such family members are the only partners.  The Committee
may attach to such transferability feature such terms and conditions as it deems advisable.  In addition, a Participant
may, in the manner established by the Committee, designate a beneficiary (which may be a natural person or a trust)
to exercise the rights of the Participant, and to receive any distribution, with respect to any Award upon the death of
the Participant.  A beneficiary, guardian, legal representative or other Person claiming any rights under the Plan from
or  through  any  Participant  shall  be  subject  to  all  terms  and  conditions  of  the  Plan  and  any  Award  Agreement
applicable to such Participant, except as otherwise determined by the Committee, and to any additional restrictions
deemed necessary or appropriate by the Committee.

Section 14.

Securities Law Requirements.

14.1. No Shares may be issued hereunder if the Company shall at any time determine that to do so would
(i)  violate  the  listing  requirements  of  an  applicable  securities  exchange,  or  adversely  affect  the  registration  or
qualification  of  the  Company’s  Shares  under  any  state  or  federal  law  or  regulation,  or  (ii)  require  the  consent  or
approval of any regulatory body or the satisfaction of withholding tax or other withholding liabilities. In any of the
events referred to in clause (i) or clause (ii) above, the issuance of such Shares shall be suspended and shall not be
effective unless and until such withholding, listing, registration, qualifications or approval shall have been effected or
obtained free of any conditions not acceptable to the Company in its sole discretion, notwithstanding any termination
of any Award or any portion of any Award during the period when issuance has been suspended.

14.2. The  Committee  may  require,  as  a  condition  to  the  issuance  of  Shares  hereunder,  representations,
warranties  and  agreements  to  the  effect  that  such  Shares  are  being  purchased  or  acquired  by  the  Participant  for
investment only and without any present intention to sell or otherwise distribute such Shares and that the Participant
will not dispose of such Shares in transactions which, in the opinion of counsel to the Company, would violate the
registration provisions of the Securities Act and the rules and regulations thereunder.

21

Section 15.
Code Section 409A.  The Plan and all Awards are intended to comply with, or be exempt from, Code
Section 409A and all regulations, guidance, compliance programs and other interpretative authority thereunder, and
all  provisions  of  the  Plan,  including,  without  limitation,  Sections  6,  8  and  9,  and  any  Award  Agreement  shall  be
applied and interpreted in a manner consistent therewith.  Notwithstanding anything contained herein to the contrary,
in  the  event  any  Award  is subject  to  Code  Section  409A,  the  Committee  may,  in  its  sole  discretion  and  without  a
Participant’s prior consent, amend the Plan and/or Awards, adopt policies and procedures, or take any other actions
as  deemed  appropriate  by  the  Committee  to  (i)  exempt  the  Plan  and/or  any  Award  from  the  application  of  Code
Section 409A, (ii) preserve the intended tax treatment of any such Award or (iii) comply with the requirements of
Code  Section  409A.    In  the  event  that  a  Participant  is  a  “specified  employee”  within  the  meaning  of  Code
Section 409A, and a payment or benefit provided for under the Plan would be subject to additional tax under Code
Section 409A if such payment or benefit is paid within six (6) months after such Participant’s separation from service
(within the meaning of Code Section 409A), then such payment or benefit shall not be paid (or commence) during
the six (6) month period immediately following such Participant’s separation from service except as provided in the
immediately following sentence.  In such an event, any payments or benefits that would otherwise have been made or
provided  during  such  six  (6)  month  period  and  which  would  have  incurred  such  additional  tax  under  Code
Section 409A shall instead be paid to the Participant in a lump-sum payment, without interest, on the earlier of (i) the
first business day of the seventh month following such Participant’s separation from service or (ii) the tenth business
day following such Participant’s death.  Notwithstanding the foregoing, none of the Company, its Affiliates or their
respective directors, officers, employees or advisors will be held liable for any taxes, interest or other amounts owed
by any Participant as a result of the application of Code Section 409A.

Section 16.
Participant to the Company pursuant to the terms of any Company “clawback” or recoupment policy.

Recoupment.  Any Award granted pursuant to the Plan shall be subject to mandatory repayment by the

Section 17.
Foreign Participants.  In order to facilitate  the making of any grant or combination  of grants under
this Plan, the Committee may provide for such special terms for Awards to Participants who are foreign nationals, or
who  are  employed  by  or  perform  services  for  the  Company  or  any  Subsidiary  outside  of  the  United  States  of
America,  as  the  Committee  may  consider  necessary  or  appropriate  to  accommodate  differences  in  local  law,  tax
policy  or  custom.    Moreover,  the  Committee  may  approve  such  supplements  to,  or  amendments,  restatements  or
alternative  versions  of,  this  Plan  as  it  may  consider  necessary  or  appropriate  for  such  purposes  without  thereby
affecting the terms of this Plan as in effect for any other purpose, provided that no such supplements, amendments,
restatements or alternative versions shall include any provisions that are inconsistent with the terms of this Plan, as
then in effect, unless this Plan could have been amended to eliminate such inconsistency without further approval by
the stockholders of the Company.

Section 18.
Termination.    Unless  earlier  terminated,  the  Plan  shall  terminate  on  April  7,  2025,  and  no  Awards
under the Plan shall thereafter be granted; provided that no such termination shall impact Awards that were granted
prior to such termination.

22

Section 19.
Plan.  The Committee may provide for the elimination of fractions and settlement of such fractional Shares in cash.

Fractional Shares.  The Company will not be required to issue any fractional Shares pursuant to the

Section 20.
Non-Exclusivity of Plan.  Nothing in the Plan shall be construed in any way as limiting the authority
of the Committee, the Board, the Company or any Subsidiary or Affiliate to establish any other cash or equity annual
or  incentive  compensation  plan  or  as  limiting  the  authority  of  any  of  the  foregoing  to  issue  Shares  or  pay  cash
bonuses  or  other  supplemental  or  additional  cash  or  equity  incentive  compensation  to  any  service  provider  to  the
Company, its Subsidiaries or Affiliates, whether or not such person is a Participant in this Plan and regardless of how
the number of Shares or the amount of such bonuses or other cash or equity compensation is determined.

Section 21.
Discretion.  In exercising, or declining to exercise, any grant of authority or discretion hereunder, the
Committee  may consider  or ignore  such factors  or circumstances  and may accord  such weight  to such factors  and
circumstances as the Committee alone and in its sole judgment deems appropriate and without regard to the effect
such exercise, or declining to exercise such grant of authority or discretion, would have upon the affected Participant,
any  other  Participant,  any  Employee,  Consultant  or  Non-Employee  Director,  the  Company,  any  Subsidiary,  any
Affiliate of the Company, any stockholder or any other Person.

Section 22.
Governing  Law.    To  the  extent  that  Federal  laws  do  not  otherwise  control,  the  validity  and
construction  of  the  Plan  and  any  Award  Agreement  entered  into  thereunder  shall  be  construed  and  enforced  in
accordance with the laws of the State of Delaware, but without giving effect to the choice of law principles thereof.

Section 23.

Effective Date.  The Plan shall become effective upon the Effective Date.

*          *          *          *           *

23

Exhibit 10.13

AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT

This AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT (this “Employment

Agreement”) is made and entered into effective as of the 22nd day of December, 2020 (the “Effective Date”), by and
between US ECOLOGY, INC., a Delaware corporation (the “Company”), and JEFFREY R. FEELER (“Executive”).
The Company and Executive are sometimes collectively referred to herein as the “Parties,” and individually, as a
“Party.”

WHEREAS, immediately prior to the Effective Date, Executive rendered valuable services to the Company

in the capacity of President and Chief Executive Officer, pursuant to an Executive Employment Agreement, dated
February 25, 2016 (the “Prior Agreement”); and

WHEREAS, the Parties desire to amend and restate the Prior Agreement in its entirety as set forth herein and
to continue Executive’s employment with the Company as its President and Chief Executive Officer on the terms and
conditions hereinafter set forth.

NOW, THEREFORE, in consideration of the premises, the mutual promises, covenants and conditions
herein contained and for other good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the Parties hereto, intending to be legally bound hereby, agree as follows:

1.0.      Employment.

Section 1.01.   Employment. The Company hereby employs Executive, and Executive hereby accepts

employment with the Company, all upon the terms and subject to the conditions set forth in this Employment
Agreement, effective as of the Effective Date first set forth above.

Section 1.02.   Term of Employment. The term of employment of Executive by the Company pursuant
to this Employment Agreement shall be for the period commencing on the Effective Date and ending December 31,
2023 (the “Employment Term”), or such earlier date that Executive’s employment is terminated in accordance with
the provisions of this Employment Agreement; provided, however, that the Employment Term shall automatically
renew for additional one year periods if neither the Company nor Executive has notified the other in writing of its or
his intention not to renew this Employment Agreement on or before 60 days prior to the expiration of the
Employment Term (including any renewal(s) thereof).

Section 1.03.   Capacity and Duties. During the Employment Term, Executive is and shall be

employed in the capacity of President and Chief Executive Officer of the Company and its subsidiaries as the senior
executive with overall responsibility for Company performance, and shall have such other duties, responsibilities and
authorities as may be assigned to him from time to time by the Board of Directors of the Company (the “Board”),
which are not materially inconsistent with Executive’s positions with the Company. Except as otherwise herein
provided, Executive shall devote his entire business time, best efforts and attention to promote and advance the
business of the Company and its subsidiaries and to perform diligently and faithfully all the duties, responsibilities
and obligations of Executive to be performed by him under this Employment Agreement. Upon termination of
Executive’s employment for any reason, unless

otherwise requested by the Board, Executive will be deemed to have resigned from the Board (and all other positions
held at the Company and its affiliates) voluntarily, without any further action by Executive, as of the end of
Executive’s employment, and Executive, at the Board’s request, will execute any documents necessary to reflect his
resignation.

Section 1.04.   Place of Employment. Executive’s principal place of work shall be the main corporate
office of the Company, currently located in Boise, Idaho; provided, however, that the location of the Company and
any of its offices may be moved from time to time in the discretion of the Board.

Section 1.05.   No Other Employment. During the Employment Term, Executive shall not be

employed in any other business activity, whether or not such activity is pursued for gain, profit or other pecuniary
advantage; provided, however, that this restriction shall not be construed as preventing Executive from (i)
participating in charitable, civic, educational, professional, community or industry affairs; (ii) sitting on one outside
board of directors for a public or private company that does not compete with the Company, with the prior
concurrence of the Board that the required time commitment with respect to such position is acceptable; and (iii)
investing his personal assets in a business which does not compete with the Company or its subsidiaries or with any
other company or entity affiliated with the Company, where the form or manner of such investment will not require
services on the part of Executive in the operation of the affairs of the business in which such investment is made and
in which his participation is solely that of a passive investor or advisor, so long as the activities in clauses (i), (ii) and
(iii), above, do not materially interfere with the performance of Executive’s duties hereunder or create a potential
business conflict or the appearance thereof.

Section 1.06.   Adherence to Standards. Executive shall comply with the written policies, standards,

rules and regulations of the Company from time to time established for all executive officers of the Company
consistent with Executive’s position and level of authority, including, without limitation, policies relating to stock
ownership guidelines, clawback of compensation, hedging and pledging of securities and insider trading.

Section 1.07.   Review of Performance. The Board or designated committee of the Board shall

periodically review and evaluate with Executive his performance under this Employment Agreement.

2.0.      Compensation.

During the Employment Term, subject to all the terms and conditions of this Employment Agreement and as
compensation for all services to be rendered by Executive hereunder, the Company shall pay to or provide Executive
with the following:

Section 2.01.   Base Salary. During the Employment Term, the Company shall pay to Executive an

annual base salary (“Base Salary”) in an amount not less than Six Hundred Twenty-Five Thousand and No/100
Dollars ($625,000.00). Such Base Salary shall be payable in accordance with the regular payroll practices and
procedures of the Company.

Section 2.02.   Incentive Pay. During the Employment Term, Executive shall be eligible to participate

in any cash incentive or bonus plans of the Company which are in effect

2

for executives from time to time, including the annual cash incentive payment opportunity granted to Executive
under the Company’s Management Incentive Plan (“MIP,” and together with any other cash incentive or bonus plans
of the Company in which Executive participates, the “Cash Incentive Plans”), subject to the terms and conditions
thereof, at a minimum 100% of Base Salary (“Target Bonus”) at a 100% of MIP target basis, with such MIP target
to be set annually by the Board. Anything to the contrary in this Employment Agreement notwithstanding, the
Company reserves the right to modify or terminate any or all of its Cash Incentive Plans at any time. In the event of
any inconsistency between the terms of this Employment Agreement and the terms of any Cash Incentive Plan, the
Cash Incentive Plan shall govern and control; provided, however, that any amount owed to Executive under a Cash
Incentive Plan in accordance with the terms thereof shall be paid to Executive no later than March 15 of the calendar
year immediately following the calendar year in which the applicable performance period ended.

Section 2.03.   Paid Time Off and Other Benefits. During the Employment Term, Executive shall be

entitled to Paid Time Off (“PTO”) consistent with the Company’s policy for senior executives (as in effect from time
to time), and shall have the right, on the same basis as other members of senior management of the Company, to
participate in any and all employee benefit plans and programs of the Company, including medical plans and other
benefit plans and programs as shall be, from time to time, in effect for executive employees and senior management
personnel of the Company. Such participation shall be subject to the terms of the applicable plan documents,
generally applicable Company policies and the discretion of the Board or any administrative or other committee
provided for in, or contemplated by, each such plan or program. Anything to the contrary in this Employment
Agreement notwithstanding, the Company reserves the right to modify or terminate such benefit plans and programs
at any time, including, without limitation, any modification of the Company’s PTO policy.

Section 2.04.   Expenses. The Company shall reimburse Executive for all reasonable, ordinary and
necessary business expenses including, but not limited to, automobile and other business travel and customer and
business entertainment expenses incurred by him during the Employment Term in connection with his employment
in accordance with the Company’s expense reimbursement policy; provided, however, Executive shall render to the
Company a complete and accurate accounting of all such business expenses in accordance with the substantiation
requirements of the Internal Revenue Code of 1986, as amended (the “Code”). Executive’s right to reimbursement
hereunder may not be liquidated or exchanged for any other benefit, the amount of expenses eligible for
reimbursement hereunder in a calendar year shall not affect the amount of expenses eligible for reimbursement
hereunder in any other calendar year, and Executive shall be reimbursed for eligible expenses no later than the close
of the calendar year immediately following the calendar year in which Executive incurs the applicable expense.

3.0.      Termination of Employment.

Section 3.01.   Termination of Employment. Executive’s employment and the Employment Term may
be terminated prior to expiration of the Employment Term as follows (with the date of termination being referred to
hereinafter as the “Termination Date”):

3

(a)        By either Party by delivering 60 days’ prior written notice of non-renewal as set forth in

Section 1.02 above;

(b)        Upon no less than 30 days’ written notice from the Company to Executive at any time without

Cause (as hereinafter defined) and other than due to Executive’s death or Disability, subject to the provisions of
Section 4.02 below;

(c)        By the Company for Cause (as hereinafter defined) immediately upon written notice stating

the basis for such termination;

(d)        Immediately upon the death of Executive;

(e)        Due to the Disability (as hereinafter defined) of Executive;

(f)        By Executive due to Retirement (as hereinafter defined) upon 90 days’ prior written notice to

the Company stating that Executive does not intend to engage in full-time employment following such termination of
employment;

(g)        By Executive at any time with or without Good Reason (as hereinafter defined), other than

due to Retirement, upon 30 days’ written notice from Executive to the Company (or such shorter period to which the
Company may agree); or

(h)        Upon the mutual agreement of the Company and Executive.

Section 3.02.   Certain Definitions. For purposes of this Employment Agreement, the following terms

have the meanings set forth below:

(a)        “Cause” shall mean, by reason of a determination by two-thirds (2/3) of the members of the
Board (excluding, for all such purposes, Executive, if Executive is a member of the Board) voting, that Executive:

(i)         Has engaged in willful neglect (other than neglect resulting from his incapacity due to
physical or mental illness) of Executive’s duties or willful misconduct in the performance of his duties for the
Company under this Employment Agreement, or has willfully violated any material written policy of the
Company;

(ii)       Has engaged in willful or grossly negligent conduct the consequences of which are

materially adverse to the Company, monetarily or otherwise;

(iii)      Has materially breached the terms of this Employment Agreement, and such breach

persisted after notice thereof from the Company and a reasonable opportunity to cure; or

(iv)       Has been convicted of (or has plead guilty or no contest to) any felony (other than a

traffic violation) or any misdemeanor involving moral turpitude.

(b)        “Disability” shall mean that, as a result of Executive’s incapacity due to physical or mental

illness, Executive is considered disabled under the Company’s Long-Term

4

Disability Plan or, in the absence of such plan, Executive is unable (without reasonable accommodation), as
determined by the Board in good faith, to perform Executive’s essential duties, responsibilities and functions under
this Employment Agreement for a period of 180 days during any 12 consecutive months.

(c)        “Good Reason” shall mean the occurrence of any of the following without Executive’s prior

written consent during the Employment Term:

(i)         Any material diminution or adverse change in Executive’s title, authority,

responsibilities or duties under this Employment Agreement which are materially inconsistent with his title,
authority, responsibilities or duties set forth in this Employment Agreement, or any removal of Executive
from, or failure to appoint, elect, reappoint or reelect Executive to, any of his positions, except in connection
with the termination of his employment with or without Cause, or as a result of his death or Disability;

(ii)       The exclusion of Executive from any incentive, bonus or other similar plan in which

Executive participated at the time that this Employment Agreement is executed, unless an equitable
arrangement (embodied in an ongoing substitute or alternative plan) has been made with respect to the failure
to continue such plan, or the failure by the Company to continue Executive’s participation therein, or any
action by the Company which would directly or indirectly materially reduce his participation therein or
reward opportunities thereunder; provided, however, that Executive continues to meet all eligibility
requirements thereof. Notwithstanding the foregoing, this provision shall not apply to the exclusion of
Executive from any incentive, bonus or other similar plan in which Executive participated at the time that this
Employment Agreement is executed to the extent that such termination is required by law, or applies to all of
the Company’s executive officers and/or employees generally.

(iii)      The failure by the Company to include or continue Executive’s participation in any
material employee benefit plan (including any medical, hospitalization, life insurance or disability benefit
plan in which Executive participates or in which other Company executives participate), or any material
fringe benefit or prerequisite enjoyed by him unless an equitable arrangement (embodied in an ongoing
substitute or alternative plan, if applicable) has been made with respect to the failure to include Executive in
such plan, or the failure by the Company to continue Executive’s participation therein, or any action by the
Company which would directly or indirectly materially reduce his participation therein or reward
opportunities thereunder, or the failure by the Company to provide him with the benefits to which he is
entitled under this Employment Agreement; provided, however, that Executive continues to meet all
eligibility requirements thereof. Notwithstanding the foregoing, this provision shall not apply to the exclusion
of Executive from any employee benefit plan in which Executive participated at the time that this
Employment Agreement is executed to the extent that such exclusion is required by law, or applies to all of
the Company’s executive officers and/or employees generally;

5

(iv)       Any material breach by the Company of any provision of this Employment

Agreement; or

(v)        The relocation of the main corporate office of the Company beyond a 50 mile radius

from Boise, Idaho or beyond a fifty (50) mile radius from Executive’s primary place of employment if not in
the corporate office, in each case which materially increases Executive’s commute.

Notwithstanding any other provision of this Employment Agreement to the contrary, Executive shall be
deemed not to have terminated his employment for Good Reason unless (i) Executive notifies the Board in writing of
the condition that Executive believes constitutes Good Reason within 90 days after the initial existence thereof
(which notice specifically identifies such condition and the details regarding its existence), (ii) the Company fails to
remedy such condition within 30 days after the date on which the Board receives such notice (the “Remedial
Period”), and (iii) Executive terminates employment with the Company (and its subsidiaries and affiliates) within 60
days after the end of the Remedial Period. The failure by Executive to include in the notice any fact or circumstance
that contributes to a showing of Good Reason shall not waive any right of Executive hereunder or preclude Executive
from asserting such fact or circumstance in enforcing Executive’s rights hereunder.

(d)        “Retirement” shall mean Executive’s termination of employment with the Company and its

subsidiaries for any reason (other than for Cause, or when grounds for Cause exist, or due to Executive’s death) after
attaining age [52] and having been employed by the Company or its subsidiaries for not less than 10 consecutive
years as of immediately prior to such termination of employment.

4.0.      Payments and Benefits Upon Termination of Employment.

Section 4.01.   Termination by the Company For Cause or by Executive Without Good Reason. If
Executive’s employment and the Employment Term are terminated by the Company for Cause or by Executive
without Good Reason (but not due to Retirement), the Company shall pay Executive the Accrued Obligations (as
hereinafter defined) (other than, however, any amounts due under any Cash Incentive Plan which shall be forfeited
pursuant to the terms of such plan), in a single, lump-sum payment in accordance with the regular payroll practices
and procedures of the Company but in no event longer than 45 days following such termination (or on such earlier
date required by applicable law).

Section 4.02.   Termination by the Company Without Cause or by Executive For Good Reason.

Subject to Section 5.0 below, if Executive’s employment and the Employment Term are terminated by the Company
without Cause or if Executive terminates his employment and the Employment Term for Good Reason, the Company
shall pay Executive the Accrued Obligations in a single, lump-sum payment in accordance with the regular payroll
practices and procedures of the Company but in no event longer than 45 days following such termination (or on such
earlier date required by applicable law) or, in the case of a Cash Incentive Plan payment, according to the terms of
such plan but no later than March 15 of the calendar year immediately following the calendar year in which the
applicable performance period ended. In addition,

6

subject to Sections 5.0, 6.0 and 7.0, in the event of such a termination, Executive shall be entitled to receive the
following:

(i)         an amount equal to the sum of two year’s Base Salary and two times Target Bonus

(“Severance Payment”), which shall be payable during the two year period immediately following the
Termination Date as provided below;

(ii)       continued vesting of outstanding stock options and stock appreciation rights for a

period of two years following the Termination Date, with any stock option and stock appreciation right held
by Executive immediately prior to such termination that is, or becomes, vested to remain exercisable until the
earlier of the second anniversary of the Termination Date and the original expiration date of such stock option
or stock appreciation right (as applicable);

(iii)      immediate vesting of any restricted stock grants that would have vested during the two-

year period immediately following the Termination Date;

(iv)       continued vesting of restricted stock unit grants for a period of two years following the

Termination Date in the same manner as if no such termination had occurred;

(v)        continued vesting of performance stock and performance stock units in the same

manner as if no termination of employment had occurred, with payment calculated based on actual
performance but with vesting to be pro-rated based on the number of days from the start of the performance
period through the second anniversary of the Termination Date in relation to the total number of days in the
performance period (provided that such pro-ration shall not result in a pro-ration factor greater than 1);

(vi)       reimbursement of Executive’s and his eligible dependents’ insurance premiums

pursuant to the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended (“COBRA”) under the
Company’s medical, dental and vision plans if Executive and Executive’s eligible dependents are eligible for,
and timely elect, COBRA continuation coverage, with such reimbursements to be provided for a period of the
lesser of 18 months immediately following the Termination Date or the date Executive or such dependent
receives similar or comparable coverage from a new employer, a spouse or the employer of a spouse;
provided, however, that the Company may unilaterally amend this clause (v) or eliminate the benefit provided
hereunder to the extent it deems necessary to avoid the imposition of excise taxes, penalties or similar charges
on the Company or any of its subsidiaries or affiliates, including, without limitation, under Code Section
4980D, or to the extent that this provision violates applicable law or non-discrimination rules (Executive
understands that such COBRA reimbursement may be treated as taxable, in which case, Executive shall be
grossed-up for such taxes in accordance with Section 409A);

(vii)     6 monthly payments each in an amount equal to the greater of (x) two (2) times the

monthly COBRA insurance premiums as of the Termination Date under the Company’s medical, dental and
vision plans and (y) $5,000, in either case as

7

compensation for Executive’s loss of participation in certain of the Company’s employee benefit plans, which
shall commence on the first payroll date following the 18-month anniversary of the Termination Date; and

(viii)    24 monthly cash payments each in an amount equal to two (2) times the monthly

premiums as of the Termination Date for the life insurance and long-term disability insurance coverage under
the Company’s life insurance and long-term disability plans covering Executive as of immediately prior to the
Termination Date (the “L&D Payments”), which shall be payable during the two year period immediately
following the Termination Date as provided below; and

(ix)       up to 12 consecutive months of outplacement services not to exceed $100,000 in the

aggregate (such benefits to end not later than the second anniversary of the Termination Date).

All payments and benefits under this Section 4.02 (other than the Accrued Obligations) shall be conditional on
Executive’s timely execution and non-revocation of the Release (as defined in Section 6.0) and Executive’s
continued compliance with Section 9.0, Section 12.0, Section 13.0, and Section 14.0. Payment of the Severance
Payment and the L&D Payments shall be made in substantially equal installments in accordance with the regular
payroll practices and procedures of the Company commencing on the first payroll date occurring after Executive’s
Release becomes effective (but not later than sixty (60) days after the Termination Date); provided, however, that the
first such payment shall include any installments that would have been made on previous payroll dates but for the
requirement that Executive execute a Release. For the avoidance of doubt, a termination of employment pursuant to
Section 3.01(a) by notice of non-renewal by the Company for any reason other than Cause, shall be deemed a
termination of employment by the Company without Cause for purposes of this Section 4.02 and Section 5, as
applicable.

Section 4.03.   Termination Due to Death. If Executive’s employment and the Employment Term are 

terminated due to Executive’s death, the Company shall pay the estate of Executive the Accrued Obligations in a 
single, lump-sum payment within 45 days following such termination (or on such earlier date required by applicable 
law) or, in the case of a Cash Incentive Plan payment, according to the terms of such plan but no later than March 15 
of the calendar year immediately following the calendar year in which the applicable performance period ended. In 
addition, in the event of such a termination of employment: (i) all unvested stock options, stock appreciation rights, 
restricted stock, restricted stock units, performance stock and performance stock units will immediately vest (with 
performance being deemed achieved at target), (ii) all restricted stock units and performance stock units that become 
vested under clause (i) shall be settled within 30 days after the Termination Date and (iii) all stock options and stock 
appreciation rights held by Executive as of immediately prior to such termination shall remain exercisable until their 
normal expiration date.

Section 4.04.   Termination Due to Disability. If Executive’s employment and the Employment Term

are terminated due to his Disability, the Company shall pay Executive the Accrued Obligations in a single, lump-sum
payment in accordance with the regular payroll practices and procedures of the Company but in no event longer than
45 days following such

8

termination (or on such earlier date required by applicable law) or, in the case of a Cash Incentive Plan payment,
according to the terms of such plan but no later than March 15 of the calendar year immediately following the
calendar year in which the applicable performance period ended. In addition, in the event of such a termination of
employment: (i) all unvested stock options, stock appreciation rights, restricted stock, performance stock and
performance stock units (but only performance stock units that are not subject to Section 409A (as hereinafter
defined)) will immediately vest (with performance being deemed achieved at target), (ii) all restricted stock units will
continue to vest for a period of two years following the Termination Date in the same manner as if no such
termination had occurred (provided that if such termination occurs within 24 months after a Change of Control, any
restricted stock units granted after the Effective Date will vest in full upon such termination and shall be settled
within 30 days thereafter), (iii) any performance stock units that are subject to Section 409A will continue to vest in
the same manner as if no such termination of employment had occurred, with performance deemed achieved at target
(provided that if such termination occurs within 24 months after a Change of Control, any performance stock units
that are subject to Section 409A granted after the Effective Date will vest in full upon such termination with
performance being deemed achieved at target and shall be settled within 30 days thereafter), (iv) all performance
stock units that become vested under clause (i) shall be settled within 30 days after the Termination Date and (v) all
stock options and stock appreciation rights held by Executive as of immediately prior to such termination shall
remain exercisable until their normal expiration date; provided, however, that such continued vesting and
exercisability of any restricted stock, restricted stock units, stock options, stock appreciation rights, performance
stock units and performance stock under this Section 4.04 shall be conditional on Executive’s timely execution and
non-revocation of the Release and Executive’s continued compliance with Section 9.0, Section 12.0, Section 13.0,
and Section 14.0 below.

Section 4.05.   Retirement. If Executive’s employment and the Employment Term are terminated by
virtue of Executive’s Retirement, the Company shall pay Executive the Accrued Obligations in a single, lump-sum
payment in accordance with the regular payroll practices and procedures of the Company but in no event longer than
45 days following such termination (or on such earlier date required by applicable law) or, in the case of a Cash
Incentive Plan payment, according to the terms of such plan but no later than March 15 of the calendar year
immediately following the calendar year in which the applicable performance period ended.

Section 4.06.   Definition of Accrued Obligations. “Accrued Obligations” shall mean (i) any earned

but unpaid Base Salary through the Termination Date and any PTO that is accrued but unused as of the Termination
Date (with such accrual determined in accordance with the Company’s PTO policy); (ii) any unreimbursed business
expenses incurred through the Termination Date that are otherwise reimbursable in accordance with Company
policy; (iii) all other payments, benefits or fringe benefits to which Executive may be entitled under the terms of any
applicable compensation arrangement or benefit, equity or fringe benefit plan or program or grant or this
Employment Agreement; and (iv) subject to forfeiture of any such payments under the terms of the applicable Cash
Incentive Plan (x) to the extent unpaid, any cash incentive earned under any Cash Incentive Plan for the fiscal year
prior to the year in which Executive’s termination occurs and (y) any cash incentive earned under any Cash Incentive
Plan in the year of Executive’s termination of employment based on actual results over the entire performance

9

period and shall be paid on a pro-rata basis based on days employed during the fiscal year of such plan if any. With
respect to clause (iv)(y) of this Section 4.06, for the sake of clarity and by way of example only, if Executive is
employed for 270 days of a fiscal year and the management incentive plan in place at the time pays out 100% of
target, Executive would be owed 74% (270/365) of any incentive payments to which he would have been entitled had
his employment not been terminated. Such payments under clause (iv) hereof shall be made in accordance with the
terms of any Cash Incentive Plan in effect at the time, except that any requirement that the recipient must be an
employee at the time of payment shall be waived by the Company under this policy.

5.0.      Payment and Benefits Upon Certain Terminations in Connection with a Change of Control.

Section 5.01.   Change of Control Severance Benefits. Subject to Sections 6.0 and 7.0 below, if within

24 months after a Change of Control, Executive’s employment and the Employment Term are terminated by the
Company without Cause (but not due to death or Disability) or by Executive for Good Reason, then Executive shall
receive:

(i)         in lieu of the Severance Payment, a payment equal to three times the sum of (x) his
annual Base Salary; and (y) the greater of (a) any earned but unpaid amount due under any Cash Incentive
Plan (as determined by the terms of the Cash Incentive Plan); and (b) Executive’s Target Bonus amount
(collectively, the “Change of Control Payment”);

(ii)       the payments and benefits set forth in clauses (vi), (vii), (viii) and (ix) of Section 4.02

at the times provided therein, provided that for purposes of applying (x) clause (vii) of Section 4.02, the
payments shall be for a period of 18 months as of the Termination Date, (y) clause (viii) of Section 4.02, the
L&D Payments shall be for a period of 36 months as of the Termination Date and (z) clause (ix) of Section
4.02, the benefits shall end no later than the third anniversary of the Termination Date;

(iii)      full vesting of all unvested stock options, stock appreciation rights, restricted stock,
restricted stock units (but only to the extent such restricted stock units are granted after the Effective Date),
performance stock units (but only to the extent such performance stock units (x) are not subject to Section
409A or (y) are subject to Section 409A but are granted after the Effective Date) and performance stock (with
all stock options and stock appreciation rights to remain exercisable through their normal expiration date,
with performance with respect to any performance-based awards to be deemed achieved at target and with all
restricted stock units and performance stock units that become vested under this clause (iii) to be settled
within 30 days after the Termination Date), provided, however, that if unvested stock options, stock
appreciation rights, restricted stock, performance stock units (to the extent not subject to Section 409A) and
performance stock held by Executive are not continued, substituted for or assumed by the successor company
in connection with a Change of Control, such awards shall immediately vest upon the Change of Control;

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(iv)       with respect to any restricted stock units that are outstanding on the Effective Date,

continued vesting of such restricted stock units in the same manner as if no such termination of employment
had occurred; and

(v)        with respect to any performance stock units that are subject to Section 409A that are

outstanding on the Effective Date, continued vesting of such performance stock units in the same manner as if
no such termination of employment had occurred (with payment based on target performance).

The Change of Control Payment shall be paid in a single lump-sum payment on the first payroll date after the
effective date of the Release, but in any event within 60 days after the Termination Date.

In the event of a termination described in this Section 5.0, Executive also shall be entitled to receive the Accrued
Obligations (to be provided in accordance with Section 4.02).

In the event of an inconsistency between this Section 5.0 and Section 4.02, this Section 5.0 shall govern and control.

Section 5.02.   Definition of Change of Control. A “Change of Control” shall be deemed to have

occurred upon:

(i)         The consummation of a reorganization, merger, statutory share exchange or consolidation or similar

transaction involving the Company (each, a “Business Combination”), unless, following such Business
Combination, all or substantially all of the individuals and entities that were the beneficial owners of the combined
voting power of the Company’s outstanding securities immediately prior to such Business Combination beneficially
own, directly or indirectly, at least 60% of the combined voting power of the then-outstanding securities of the entity
resulting from such Business Combination; provided, however, that a public offering of the Company’s securities
shall not constitute a Business Combination;

(ii)       The sale, transfer, or other disposition of all or substantially all of the Company’s assets;

(iii)      Any transaction as a result of which any person is the “beneficial owner” (as defined in Rule 13d-3

under the Securities Exchange Act of 1934, as amended (the “1934 Act”)), directly or indirectly, of securities of the
Company representing more than 30% of the total voting power represented by the Company’s then outstanding
voting securities. For purposes of this subparagraph (iii), the term “person” shall have the same meaning as when
used in sections 13 and 14(d) of the 1934 Act, but shall exclude (x) a trustee or other fiduciary holding securities
under an employee benefit plan of the Company or of a subsidiary; (y) a corporation owned directly or indirectly by
the stockholders of the Company in substantially the same proportions as their ownership of the common stock of the
Company; and (z) any person or entity owning more than 30% of the total voting power represented by the
Company’s then outstanding voting securities immediately prior to such transaction; or

(iv)       A change in the composition of the Board in any 12-month period as a result of which fewer than a

majority of the directors are Incumbent Directors. “Incumbent Directors”

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shall mean directors who either (a) are directors of the Company as of the start of the period or (b) are elected, or
nominated for election, to the Board with the affirmative votes (either by a specific vote or by approval of the proxy
statement of the Company in which such person is named as a nominee for election as a director without objection to
such nomination) of at least a majority of the Incumbent Directors at the time of such election or nomination (but
shall not include an individual whose election or nomination is in connection with an actual or threatened proxy
contest relating to the election of directors of the Company).

Notwithstanding the foregoing or anything contained herein to the contrary, no transaction or event shall be a
Change of Control unless it also satisfies the requirements of Treasury Regulation Section 1.409A-3(i)(5)(v), (vi) or
(vii).

6.0.      Release.

Executive’s entitlement to the payments and benefits described in Section 4.02, Section 4.04, Section 4.05
and Section 5.0, in each case, other than the Accrued Obligations, is subject to and conditioned upon Executive’s
timely execution, without subsequent revocation, of a release of claims in favor of the Company and its subsidiaries
and affiliates in form and substance satisfactory to the Company (the “Release”); provided, however, that
notwithstanding the foregoing, the Release is not intended to and will not waive Executive’s rights: (i) to
indemnification pursuant to any applicable provision of the Company’s Bylaws or Certificate of Incorporation, as
amended, pursuant to any written indemnification agreement between Executive and the Company, or pursuant to
applicable law; (ii) to vested benefits or payments specifically to be provided to Executive under this Employment
Agreement or any Company employee benefit plans or policies; or (iii) respecting any claims Executive may have
solely by virtue of Executive’s status as a stockholder of the Company. The Release also shall not impose any
restrictive covenant on Executive’s conduct post-termination that Executive had not agreed to prior to Executive’s
termination in this Agreement or otherwise or include claims that an employee cannot lawfully release through
execution of a general release of claims.

To be timely, the Release must become effective (i.e., Executive must sign it and any revocation period must
expire without Executive revoking the Release) within 60 days, or such shorter period specified in the Release, after
Executive’s date of termination of employment. If the Release does not become effective within such time period,
then Executive shall not be entitled to such payments and benefits. The Company is obligated to provide Executive
the Release within 7 calendar days after the Termination Date and Executive shall have a minimum of 21 calendar
days to review and comment on the Release.

Notwithstanding anything contained in this Employment Agreement to the contrary, if payment or provision

of any amounts under Section 4.02, Section 4.04, Section 4.05 and Section 5.0, in each case, on which Executive’s
execution and non-revocation of the Release is conditioned, could commence in more than one calendar year based
on when the Release could be executed (regardless of when the Release is executed), then to the extent any such
amounts are treated as nonqualified deferred compensation under Section 409A (as hereinafter defined) any such
amounts that otherwise would have been paid or provided in such first calendar year instead shall be withheld and
paid or provided on the first payroll date in such second calendar year with all remaining payments and benefits to be
made as if no such delay had occurred.

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7.0.      Compliance With Section 409A.

Section 7.01.   General. The provisions of this Employment Agreement are intended to comply with

the requirements of Section 409A of the Code and any regulations and official guidance promulgated thereunder
(“Section 409A”) or an exemption or exclusion therefrom and, with respect to amounts that are subject to Section
409A, shall in all respects be interpreted in accordance with Section 409A. Any payments that qualify for the “short-
term deferral” exception or another exception under Section 409A shall be paid under the applicable exception. Each
payment of compensation under this Employment Agreement shall be treated as a separate payment of compensation
for purposes of Section 409A and a right to a series of installment payments under this Employment Agreement
(including pursuant to Section 4.02) shall be treated as a right to a series of separate and distinct payments. All 
payments to be made upon a termination of employment under this Employment Agreement that are treated as 
nonqualified deferred compensation under Section 409A may only be made upon a “separation from service” under 
Section 409A. In no event may Executive, directly or indirectly, designate the calendar year of any payment under 
this Employment Agreement. For purposes of this Employment Agreement, a termination of Executive’s 
employment as a result of Disability, by the Company without Cause or by Executive for Good Reason, in each case, 
is intended to constitute an “involuntary separation” within the meaning of, and for purposes of, Section 409A, and 
this Employment Agreement shall be interpreted accordingly.

Section 7.02.   In-Kind Benefits and Reimbursements. Notwithstanding anything to the contrary in this

Employment Agreement, all reimbursements and in-kind benefits provided hereunder shall be made or provided in
accordance with the requirements of Section 409A, including, where applicable, the requirement that (a) any
reimbursement is for expenses incurred during Executive’s lifetime (or during a shorter period of time specified
herein); (b) the amount of expenses eligible for reimbursement, or in-kind benefits provided, during a calendar year
may not affect the expenses eligible for reimbursement, or in-kind benefits to be provided, in any other calendar year,
except, if such benefits consist of the reimbursement of expenses referred to in Section 105(b) of the Code, a
maximum, if provided under the terms of the plan providing such medical benefit, may be imposed on the amount of
such reimbursements over some or all of the period in which such benefit is to be provided to Executive as described
in Treasury Regulation Section 1.409A-3(i)(1)(iv)(B); (c) the reimbursement of an eligible expense will be made no
later than the last day of the calendar year immediately following the calendar year in which the expense is incurred,
provided that reimbursement shall be made only if Executive has submitted an invoice for such expenses at least 10
days before the end of the calendar year immediately following the calendar year in which such expenses were
incurred; and (d) the right to reimbursement or in-kind benefits is not subject to liquidation or exchange for another
benefit.

Section 7.03.   Delay of Payments. Notwithstanding any other provision of this Employment

Agreement to the contrary, if Executive is considered a “specified employee” for purposes of Section 409A (as
determined in accordance with the methodology established by the Company as in effect on the date of termination
of employment), any payment that constitutes nonqualified deferred compensation within the meaning of Section
409A that is otherwise due to Executive hereunder during the six-month period immediately following Executive’s
separation from service (as determined in accordance with Section 409A) on account of Executive’s separation from
service shall be accumulated and paid to Executive on the first business day after

13

the date that is six months immediately following Executive’s separation from service (the “Delayed Payment
Date”). Executive shall be entitled to interest (at a per annum rate equal to the highest rate of interest applicable to
six-month non-callable certificates of deposit with daily compounding offered by the following institutions: Citibank,
N.A., Wells Fargo Bank, N.A. or Bank of America, on the date of such separation from service) on any cash
payments so delayed from the scheduled date of payment to the Delayed Payment Date. If Executive dies during the
postponement period, the amounts and entitlements delayed on account of Section 409A shall be paid to the personal
representative of Executive’s estate on the first to occur of the Delayed Payment Date or 30 days after the date of
Executive’s death.

Section 7.04.   Cooperation. Executive and the Company agree to work together in good faith to
consider amendments to this Employment Agreement and to take such reasonable actions which are necessary,
appropriate or desirable to avoid imposition of any additional tax or income recognition prior to actual payment to
Executive under Section 409A.

Section 7.05.   No Liability. Notwithstanding anything contained in this Employment Agreement to

the contrary, neither the Company nor any of its subsidiaries or affiliates shall have any liability or obligation to
Executive or to any other person or entity in the event that this Employment Agreement, or any of the payments or
benefits provided under this Employment Agreement, does not comply with, or is not exempt from, Section 409A.

8.0.      Limitation on Payments.

Notwithstanding any other provision of this Employment Agreement or any other agreement or arrangement

between Executive and the Company or any of its affiliates, in the event that the payments and other benefits
provided for in this Employment Agreement, together with all other payments and benefits that Executive receives or
is entitled to receive from the Company or any of its subsidiaries, (i) constitute “parachute payments” within the
meaning of Section 280G of the Code and (ii) but for this Section 8.0, would be subject to the excise tax imposed by
Section 4999 of the Code, then such payments and benefits will be either:

(a)        delivered in full; or

(b)        delivered as to such lesser extent as would result in no portion of such payments and benefits

being subject to excise tax under Section 4999 of the Code,

whichever of the foregoing amounts, taking into account the applicable federal, state and local income taxes and the
excise tax imposed by Section 4999 of the Code, results in the receipt by Executive on an after-tax basis, of the
greatest amount of payments and benefits, notwithstanding that all or some portion of such payments and benefits
may be taxable under Section 4999 of the Code. If a reduction in payments and benefits constituting “parachute
payments” is necessary so that payments and benefits are delivered to a lesser extent under Section 8.0(b) hereof,
reduction shall occur in the following order: (i) reduction of cash severance payments (reduced from the latest
scheduled payments to the earliest scheduled payments); (ii) cancellation of any equity awards that are included
under Section 280G of the Code at full value rather than accelerated value (reduced from highest value to lowest
value under Section 280G of the Code and, if such values are the same, from latest to earliest scheduled vesting
dates); (iii) cancellation of the

14

accelerated vesting of any equity awards included under Section 280G of the Code at an accelerated value (and not at
full value), which shall be reduced with the highest value reduced first (as such values are determined under Treasury
Regulation Section 1.280G-1, Q&A 24) (and if such values are the same, from latest to earliest vesting dates); and
(iv) reduction of any other non-cash benefits (including the value of the accelerated payment of any cash payments),
reduced in the order of highest to lowest value under Code Section 280G (and if such values are the same, from latest
to earliest payment dates); provided, in each case, that any such reduction shall be made in a manner consistent with
the requirements of Section 409A. Unless the Company and Executive otherwise agree in writing, any determination
required under this Section 8.0 will be made in writing by an independent, nationally recognized accounting firm
selected by the Company (the “Firm”), whose determination will be conclusive and binding upon Executive and the
Company for all purposes. For purposes of making the calculations required by this Section 8.0, the Firm may make
reasonable assumptions and approximations concerning applicable taxes and may rely on reasonable, good faith
interpretations concerning the application of Sections 280G and 4999 of the Code. The Company and Executive will
furnish to the Firm such information and documents as the Firm may reasonably request in order to make a
determination under this Section 8.0. The Company will bear all costs the Firm may reasonably incur in connection
with any calculations contemplated by this Section 8.0.

9.0.      Return of Property.

Executive agrees, upon the termination of his employment with the Company or upon the earlier written

request of the Company, to return to the Company all physical, computerized, electronic or other types of records,
documents, proposals, notes, lists, files and any and all other materials, including without limitation, computerized
and/or electronic information that refers, relates or otherwise pertains to the Company and/or its subsidiaries, and any
and all business dealings of said persons and entities. In addition, Executive shall return to the Company all property
and equipment that Executive has been issued during the course of his employment or which he otherwise then
possesses or has control over, including but not limited to, any computers, cellular phones, personal digital assistants,
pagers and/or similar items. Executive shall immediately deliver to the Company any such physical, computerized,
electronic or other types of records, documents, proposals, notes, lists, files, materials, property and equipment that
are in Executive’s possession or control. Executive further agrees that he will immediately forward to the Company
any business information regarding the Company and/or its subsidiaries that has been or is inadvertently directed to
Executive following his last day of employment with the Company. The provisions of this Section 9.0 are in addition
to any other written agreements on this subject that Executive may have with the Company and/or its subsidiaries,
and are not meant to and do not excuse any additional obligations that Executive may have under such agreements.

10.0.    Notices.

For the purposes of this Employment Agreement, notices and all other communications provided for

hereunder shall be in writing and shall be deemed to have been duly given when personally delivered or sent by
certified mail, return receipt requested, postage prepaid, or by expedited (overnight) courier with established national
reputation, shipping prepaid or billed to sender, in either case addressed to the respective addresses last given by each
Party to the other

15

(provided that all notices to the Company shall be directed to the attention of the Board) or to such other address as
either Party may have furnished to the other in writing in accordance herewith. All notices and communications shall
be deemed to have been received on the date of delivery thereof, or on the second day after deposit thereof with an
expedited courier service, except that notice of change of address shall be effective only upon receipt. Notices shall
be addressed as follows:

If to the Company:
101 S. Capitol Blvd., Suite 1000
Boise, Idaho 83702

If to Executive:
As on file with the Company’s Corporate Secretary

11.0.    Life Insurance.

The Company may, at any time after the execution of this Employment Agreement, apply for and procure as

owner and for its own benefit, life insurance on Executive, in such amounts and in such form or forms as the
Company may determine. Executive shall, at the request of the Company, submit to such medical examinations,
supply such information, and execute such documents as may be required by the insurance company or companies to
whom the Company has applied for such insurance.

12.0.    Confidentiality.

Executive agrees not to disclose or reveal to any person or entity outside the Company or any of its
subsidiaries any confidential, trade secret, proprietary or other non-public information concerning the Company, any
of its subsidiaries or any of the businesses or operations of the Company or any of its subsidiaries (“Confidential
Information”), including all information relating to any Company or subsidiary product, process, equipment,
machinery, design, formula, business plan or strategy, or other activity without prior permission of the Company in
writing. Confidential Information shall not include any information which is in the public domain or becomes
publicly known, in either case, through no wrongful act on the part of Executive or breach of this Employment
Agreement. Executive acknowledges that the Confidential Information is vital, sensitive, confidential and proprietary
to the Company or its subsidiaries. The obligation to protect the secrecy of such information continues after
employment with Company or any of its subsidiaries may be terminated. In furtherance of this agreement, Executive
acknowledges that all Confidential Information which Executive now possesses, or shall hereafter acquire,
concerning and pertaining to the business and secrets of the Company or any of its subsidiaries and all inventions or
discoveries made or developed, or suggested by or to Executive during said term of employment relating to the
Company’s or any of its subsidiaries’ business shall, at all times and for all purposes, be regarded as acquired and
held by Executive in his fiduciary capacity and solely for the benefit of the Company or any of its subsidiaries.

16

Pursuant to 18 U.S.C. § 1833(b), Executive understands that he will not be held criminally or civilly liable

under any federal or state trade secret law for the disclosure of a trade secret of the Company or any of its
subsidiaries that (i) is made (A) in confidence to a federal, state, or local government official, either directly or
indirectly, or to his attorney and (B) solely for the purpose of reporting or investigating a suspected violation of law;
or (ii) is made in a complaint or other document that is filed under seal in a lawsuit or other proceeding. Executive
understands that if he files a lawsuit for retaliation by the Company or any of its subsidiaries for reporting a
suspected violation of law, he may disclose the trade secret to his attorney and use the trade secret information in the
court proceeding if he (I) files any document containing the trade secret under seal, and (II) does not disclose the
trade secret, except pursuant to court order. Nothing in this Employment Agreement, or any other agreement that
Executive has with the Company, is intended to conflict with 18 U.S.C. § 1833(b) or create liability for disclosures
of trade secrets that are expressly allowed by such section. Further, nothing in this Employment Agreement or any
other agreement that Executive has with the Company or any of its affiliates shall prohibit or restrict him from
making any voluntary disclosure of information or documents concerning possible violations of law to any
governmental agency or legislative body, or any self-regulatory organization, in each case, without advance notice to
the Company.

13.0.    Work Product Assignment.

Executive agrees that all inventions, innovations, discoveries, improvements, technical information, systems,

software developments, methods, designs, analyses, data, drawings, reports, works of authorship, service marks,
trademarks, trade names, logos and all similar or related information or developments (whether patentable or
unpatentable) which relate to the actual or anticipated business, research and development or existing or future
products or services of the Company or of any of its subsidiaries or affiliates, and which are conceived, developed or
made by Executive (whether or not during usual business hours and whether or not alone or in conjunction with any
other person) while employed by the Company, together with all patent applications, letters patent, trademark, trade
name and service mark applications or registrations, copyrights and reissues thereof that may be granted for or upon
any of the foregoing and any other intellectual property right or other proprietary rights in any of the foregoing
(collectively referred to herein as the “Work Product”), are in all instances the exclusive property of the Company,
and Executive hereby irrevocably assigns to the Company all Work Product and all of his interest therein, including
all rights to claim and recover damages and/or injunctive relief for past, present, and future infringement or violation
of any Work Product. Executive agrees to promptly make full written disclosure to the Company of any and all Work
Product. Executive will promptly perform all actions reasonably requested by the Board (whether during or after his
employment with the Company) to establish and confirm the ownership of such Work Product (including, without
limitation, the execution and delivery of assignments, consents, powers of attorney and other instruments) by the
Company or its subsidiaries or affiliates, as applicable, and to provide reasonable assistance to the Company or any
of its subsidiaries and affiliates in connection with the prosecution of any applications for patents, trademarks, trade
names, service marks or reissues thereof or other intellectual property rights, or in the prosecution, maintenance,
enforcement and defense of any intellectual property rights or other proprietary rights in any Work Product. Without
limiting the foregoing, Executive hereby irrevocably designates and appoints the Company and its duly authorized
officers and agents as Executive’s agent and attorney-in-fact, to act for and on Executive’s behalf to execute

17

and file any such application or applications or other documents and to do all other lawfully permitted acts to further
the prosecution and issuance of letters patent, copyright or trademark registrations or any other legal protection
thereon with the same legal force and effect as if executed by Executive.

14.0.    Covenant Not to Compete, Not to Solicit and Not to Disparage.

Section 14.01. Acknowledgment of Executive. Executive acknowledges that his employment with the

Company has special, unique and extraordinary value to the Company; that the Company has a lawful interest in
protecting its investment in entrusting its Confidential Information to him; that the Company would be irreparably
damaged if Executive were to provide services to any person or entity in violation of this Employment Agreement;
that in performing such services Executive would inevitably disclose the Company’s Confidential Information to
third parties; and that the restrictions, prohibitions and other provisions of this Section 14.0 are reasonable, fair and
equitable in scope, terms, and duration to protect the legitimate business interests of the Company, and are a material
inducement to the Company to enter into this Employment Agreement.

Section 14.02. Non-Competition Covenant. Without the consent in writing of the Board, Executive

will not, during Executive’s employment with the Company and (i) for a period of 18 months after a termination of
employment by the Company without Cause, including for non-renewal of the Employment Term, or by Executive
for Good Reason or (ii) for a period of 12 months after a termination of employment by Executive without Good
Reason, acting alone or in conjunction with others, directly or indirectly engage anywhere in the United States or any
other country in which the Company conducts business (either as owner, investor, partner, stockholder, employer,
employee, consultant, advisor or director) in activities on behalf of any person or entity that provides environmental
or industrial products or services that are in competition with any products or services provided by the Company or
any of its subsidiaries or that the Company or any of its subsidiaries had plans to provide as of the termination of
Executive’s employment. It is agreed that the ownership of not more than five percent (5%) of the equity securities
of any company having securities listed on an exchange or regularly traded in the over-the-counter market shall not,
of itself, be deemed inconsistent with this Section 14.02.

Section 14.03. Non-Solicitation of Customers and Prospective Customers. Without the consent in

writing of the Board, Executive will not, during Executive’s employment with the Company and (i) for a period of
18 months after a termination of employment by the Company without Cause, including for non-renewal of the
Employment Term, or by Executive for Good Reason or (ii) for a period of 12 months after a termination of
employment by Executive without Good Reason, acting alone or in conjunction with others, either directly or
indirectly, solicit, encourage or induce, or attempt to solicit, encourage or induce, any customer or prospective
customer of the Company or any of its subsidiaries to curtail or cancel its business with the Company or any of its
subsidiaries.

Section 14.04. Non-Solicitation of Employees. Without the consent in writing of the Board, Executive

will not, during Executive’s employment with the Company and (i) for a period of 18 months after a termination of
employment if the Company without Cause, including for non-renewal of the Employment Term, or by Executive for
Good Reason or (ii) for a period

18

of 12 months after a termination of employment by Executive without Good Reason, acting alone or in conjunction
with others, either directly or indirectly, solicit, encourage or induce, or attempt to solicit, encourage or induce, any
employee of the Company or any of its subsidiaries to terminate his or her employment.

Section 14.05. Non-Disparagement. Executive agrees that during Executive’s employment with the
Company and at all times thereafter, Executive shall not directly or indirectly through any other person, make any
statements (whether orally, in writing, on social media or otherwise) that disparage, denigrate or malign any of the
Company, its affiliates or any of their respective businesses, activities, operations or reputations or any of their
respective directors, managers, officers, employees, representatives or more than 1% stockholders. The Company
shall not permit any member of the Board to, or authorize or direct any employee of the Company to, make any
public statements (whether orally, in writing, on social media or otherwise) that disparage, denigrate or malign
Executive. For purposes of clarification, and not limitation, a statement shall be deemed to disparage, denigrate or
malign a person if such statement could be reasonably construed to adversely affect the opinion any other person
may have or form of such first person. The foregoing limitations shall not be violated by truthful statements made (i)
to any governmental authority, (ii) which such person believes, based on the advice of counsel, are in response to
legal process, required governmental testimony or filings, or administrative or arbitral proceedings (including,
without limitation, depositions in connection with such proceedings), (iii) in good faith in connection with any
employment (or similar) performance or similar review or (iv) as necessary to defend or prosecute a claim or
allegation.

15.0.    Remedies.

Section 15.01. Specific Performance; Costs of Enforcement. Executive acknowledges that the

covenants and agreements which he has made in this Employment Agreement are reasonable and are required for the
reasonable protection of the Company, its subsidiaries and their respective businesses. Executive agrees that the
breach of any covenant or agreement contained herein will result in irreparable injury to the Company and/or its
subsidiaries, and that, in addition to all other remedies provided by law or in equity with respect to the breach of any
provision of this Employment Agreement, the Company, its subsidiaries and each of their respective successors and
assigns will be entitled to enforce the specific performance by Executive of his obligations hereunder and to enjoin
him from engaging in any activity in violation hereof and that no claim by Executive against the Company, any of its
subsidiaries or any of their respective successors or assigns will constitute a defense or bar to the specific
enforcement of such obligations. Executive agrees that the Company, its subsidiaries and each of their respective
successors and assigns shall be entitled to recover all costs of enforcing any provision of this Employment
Agreement, including, without limitation, reasonable attorneys’ fees and costs of litigation. In the event of a breach
by Executive of any covenant or agreement contained in Section 14.0 (other than Section 14.05), the running of the
restrictive covenant periods (but not of Executive’s obligations thereunder) shall be tolled during the period of the
continuance of any actual breach or violation.

Section 15.02. Additional Remedies for Breach of Restrictive Covenants. The provisions of Section

12.0, Section 13.0, and Section 14.0 (collectively, the “Restrictive Covenants”) are separate and distinct
commitments independent of each of the other Sections.

19

Accordingly, notwithstanding any other provision of this Employment Agreement, Executive agrees that damages in
the event of a breach or a threatened breach by Executive of Section 12.0, Section 13.0 and/or Section 14.0 would be
difficult if not impossible to ascertain and an inadequate remedy, and it is therefore agreed that the Company, in
addition to and without limiting any other remedy or right it may have, shall have the right to an immediate
injunction or other equitable relief enjoining any such threatened or actual breach, without any requirement to post
bond or provide similar security or to prove actual damages. The existence of this right shall not preclude the
Company from pursuing any other rights and remedies at law or in equity that the Company may have, including
recovery of damages for any breach of such Sections.

Section 15.03. Right to Cancel Payments.

(a)        In addition to the remedies set forth above in Sections 15.01 and 15.02, the Company may, at

the sole discretion of the Board, cancel, rescind or reduce the Severance Payment and the other payments and
benefits under Sections 4.02 and 4.04 (other than the Accrued Obligations), whether vested or not, at any time, if
Executive is not in compliance with all of the provisions of Section 12.0, Section 13.0 and Section 14.0.

(b)        As a condition to the receipt of any payment or benefit under Sections 4.02 and 4.04 (other
than the Accrued Obligations), Executive shall certify to the Company that he is in compliance with the provisions
set forth above.

(c)        In the event that the Company has rescinded any payments or benefits under Sections 4.02 and

4.04 pursuant to Section 15.03(a) at the time of Executive’s alleged breach and the arbitrator determines that
Executive has failed to comply with the provisions set forth in Section 12.0, Section 13.0 and/or Section 14.0, as
finally determined by binding arbitration pursuant to Section 16.0, Executive shall pay to the Company, within 12
months of the Company’s rescission of one or more such payments or benefits, the amount of any such payment(s) or
benefit(s) received as a result of the rescinded payment(s) or benefit(s), without interest, in such further manner and
on such further terms and conditions as may be required by the Company; and the Company shall be entitled to set-
off against the amount of such payment or benefit any amount owed to Executive by the Company or any of its
subsidiaries (if permitted by Section 409A), other than wages.

(d)        Executive acknowledges that the foregoing provisions are fair, equitable and reasonable for

the protection of the Company’s interests in a stable workforce and the time and expense the Company has incurred
to develop its business and its customer and vendor relationships.

(e)        Notwithstanding the foregoing or anything contained herein to the contrary, this Section 15.03
shall not apply to any payments or benefits owed to Executive in the event of a termination of employment described
in Section 5.0.

16.0.    Dispute Resolution; WAIVER OF JURY TRIAL.

Except for claims to enforce or otherwise relating to the Restrictive Covenants, including any claim for

injunctive, declaratory or other equitable relief, which remedies may be sought in any court of competent
jurisdiction:

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Section 16.01. Initial Negotiations. The Company and Executive agree to resolve all disputes arising

out of their employment relationship by the following alternative dispute resolution process: (a) the Company and
Executive agree to seek a fair and prompt negotiated resolution; but if this is not possible, (b) all disputes shall be
resolved by binding arbitration; provided, however, that during this process, at the request of either Party, made not
later than 60 days after the initial arbitration demand, the Parties agree to attempt to resolve any dispute by non-
binding, third-party intervention, including either mediation or evaluation or both but without delaying the arbitration
hearing date. BY ENTERING INTO THIS EMPLOYMENT AGREEMENT, BOTH PARTIES GIVE UP
THEIR RIGHT TO HAVE THE DISPUTE DECIDED IN COURT BY A JUDGE OR JURY.

Section 16.02. Mandatory Arbitration. Any controversy or claim arising out of or connected with

Executive’s employment or service with the Company or any of its affiliates or the termination thereof, including but
not limited to claims for compensation or severance and claims of wrongful termination, age, sex or other
discrimination or civil rights shall be decided by arbitration. In the event the Parties cannot agree on an arbitrator,
then the arbitrator shall be selected by the administrator of the American Arbitration Association (“AAA”) office in
Salt Lake City, Utah. The arbitrator shall be an attorney with at least 15 years’ experience in employment law in
Idaho. Boise, Idaho shall be the site of the arbitration. All statutes of limitation, which would otherwise be
applicable, shall apply to any arbitration proceeding hereunder. Any issue about whether a controversy or claim is
covered by this Employment Agreement shall be determined by the arbitrator.

Section 16.03. Arbitration Rules.

(a)        The arbitration shall be conducted in accordance with this Employment Agreement, using as
appropriate the AAA Employment Arbitration Rules and Mediation Procedures then-in-effect. The arbitrator shall
not be bound by the rules of evidence or of civil procedure, but rather may consider such writings and oral
presentations as reasonable business people would use in the conduct of their day-to-day affairs, and may require
both Parties to submit some or all of their respective cases by written declaration or such other manner of
presentation as the arbitrator may determine to be appropriate. The Parties agree to limit live testimony and cross-
examination to the extent necessary to ensure a fair hearing on material issues.

(b)        The arbitrator shall take such steps as may be necessary to hold a private hearing within 120

days after the initial request for arbitration; and the arbitrator’s written decision shall be made not later than 14
calendar days after the hearing. The Parties agree that they have included these time limits in order to expedite the
proceeding, but they are not jurisdictional, and the arbitrator may for good cause allow reasonable extensions or
delays, which shall not affect the validity of the award. Both written discovery and depositions shall be allowed. The
extent of such discovery will be determined by the Parties and any disagreements concerning the scope and extent of
discovery shall be resolved by the arbitrator. The written decision shall contain a brief statement of the claim(s)
determined and the award made on each claim. In making the decision and award, the arbitrator shall apply
applicable substantive law. The arbitrator may award injunctive relief or any other remedy available from a judge,
including consolidation of this arbitration with any other involving common issues of law or fact which

21

may promote judicial economy, and shall award attorneys’ fees and costs to the prevailing Party in accordance with
Section 17.0, but shall not have the power to award punitive or exemplary damages except where expressly
authorized by statute. The Parties specifically state that the agreement to limit damages was agreed to by the Parties
after negotiations.

17.0.    Attorneys’ Fees.

Section 17.01. Prevailing Party Entitled to Attorneys’ Fees. In any action at law or in equity, or in

arbitration, to enforce any of the provisions or rights under this Employment Agreement, the prevailing Party to such
litigation, as determined by the arbitrator in accordance with the dispute resolution provisions set forth above, shall
be entitled to recover from the unsuccessful Party all costs, expenses and reasonable attorneys’ fees incurred therein
by such prevailing Party (including, without limitation, such costs, expenses and fees on appeal), excluding,
however, any time spent by Company employees, including in-house legal counsel, and if such prevailing Party shall
recover judgment in any such action or proceeding, such costs, expenses and attorneys’ fees shall be included as part
of such judgment; provided that nothing herein shall limit Executive’s right to recover Executive’s full attorney’s
fees and costs in accordance with any statute authorizing an award of such fees and costs.

Section 17.02. Limitation on Fees. Notwithstanding the foregoing provision, in no event shall the

prevailing Party be entitled to recover an amount from the unsuccessful Party for costs, expenses and attorneys’ fees
that exceeds the unsuccessful Party’s costs, expenses and attorneys’ fees in connection with the action or proceeding.

18.0.    Miscellaneous Provisions.

Section 18.01. Prior Employment Agreements. Executive represents and warrants that Executive’s

performance of all the terms of this Employment Agreement and as an executive of the Company does not, and will
not, breach any employment agreement, arrangement or understanding or any agreement, arrangement or
understanding to keep in confidence proprietary information acquired by Executive in confidence or in trust prior to
Executive’s employment by the Company. Executive has not entered into, and shall not enter into, any agreement,
arrangement or understanding, either written or oral, which is in conflict with this Employment Agreement or which
would be violated by Executive entering into, or carrying out his obligations under, this Employment Agreement.
This Employment Agreement supersedes any former oral agreement and any former written agreement heretofore
executed relating generally to the employment of Executive with the Company, including without limitation, the
Prior Agreement.

Section 18.02. Cooperation. During and after Executive’s employment, Executive agrees to cooperate

with the Company or any of its subsidiaries in any internal investigation, any administrative, regulatory, or judicial
proceeding or any dispute with a third party concerning issues about which Executive has knowledge. Executive’s
cooperation may include, without limitation, being available to the Company or any of its subsidiaries upon
reasonable notice for interviews and factual investigations, appearing at the Company’s or any of its subsidiaries’
request to give testimony without requiring service of a subpoena or other legal process, volunteering to the
Company or any of its subsidiaries pertinent information, and turning over to

22

the Company or any of its subsidiaries all relevant documents which are or may come into Executive’s
possession. The Company shall take into account Executive’s other obligations in the case of any cooperation
requested after the Termination Date. The Company shall promptly reimburse Executive for the reasonable expenses
and costs incurred by him in connection with such cooperation to the extent approved in advance in writing by the
Company, and, if any such cooperation is provided after the Termination Date at a time when Executive is not
receiving any severance payments under this Employment Agreement, shall compensate Executive for Executive’s
time in providing such cooperation at Executive’s hourly Base Salary rate (based on an eight (8) hour work day) as in
effect on the Termination Date (provided that no such compensation shall be paid with respect to Executive’s
testimony as a witness). For the avoidance of doubt, the immediately preceding sentence shall not require the
Company to reimburse Executive for any attorneys’ fees or related costs Executive may incur absent advance written
approval by the Company.

Section 18.03. Assignment; Binding Effect. This Employment Agreement may be assigned in whole or
in part by the Company or its successors, but may not be assigned by Executive in whole or in part. Notwithstanding
the foregoing, this Employment Agreement shall inure to the benefit of and be enforceable by Executive’s personal
representatives, executors, administrators, successors, heirs, distributees, devisees and legatees. If Executive should
die while any amounts under this Employment Agreement are owed to him based on events occurring on or prior to
such death, all such amounts, unless otherwise provided herein, shall be paid in accordance with the terms of this
Employment Agreement to Executive’s estate.

Section 18.04. Headings. Headings used in this Employment Agreement are for convenience only and

shall not be used to interpret or construe its provisions.

Section 18.05. Waiver. No provision of this Employment Agreement may be waived or discharged
unless such waiver or discharge is agreed to in writing and signed by the Company and Executive. No waiver by
either Party hereto at any time of any breach by the other Party hereto of, or compliance with, any condition or
provision of this Employment Agreement to be performed by such other Party shall be deemed a waiver of similar or
dissimilar provisions or conditions at the same or at any prior or subsequent time.

Section 18.06. Amendments. No amendments or variations of the terms and conditions of this

Employment Agreement shall be valid unless the same is in writing and signed by the Parties hereto.

Section 18.07. Severability. The invalidity or unenforceability of any provision of this Employment
Agreement, whether in whole or in part, shall not in any way affect the validity and/or enforceability of any other
provision contained herein. Any invalid or unenforceable provision shall be deemed severable to the extent of any
such invalidity or unenforceability. It is expressly understood and agreed that while the Company and Executive
consider the restrictions contained in this Employment Agreement reasonable for the purpose of preserving for the
Company the goodwill, other proprietary rights and intangible business value of the Company, if a final judicial
determination is made by a court having jurisdiction that the time or territory or any other restriction contained in this
Employment Agreement is an unreasonable or otherwise unenforceable restriction against Executive, the provisions
of such clause shall not be rendered

23

void but shall be deemed amended to apply as to maximum time and territory and to such other extent as such court
may judicially determine or indicate to be reasonable.

Section 18.08. Governing Law. This Employment Agreement shall be construed and enforced

pursuant to the laws of the State of Idaho, applied without reference to principles of conflicts of law.

Section 18.09. Executive Officer Status. Executive acknowledges that he may be deemed to be an

“executive officer” of the Company for purposes of the Securities Act of 1933, as amended (the “1933 Act”), and the
1934 Act and, if so, he shall comply in all respects with all the rules and regulations under the 1933 Act and the 1934
Act applicable to him in a timely and non-delinquent manner. In order to assist the Company in complying with its
obligations under the 1933 Act and 1934 Act, Executive shall provide to the Company such information about
Executive as the Company shall reasonably request including, but not limited to, information relating to personal
history and stockholdings. Executive shall report to the Secretary of the Company or other designated officer of the
Company all changes in beneficial ownership of any shares of the Company’s Common Stock deemed to be
beneficially owned by Executive and/or any members of Executive’s immediate family. Executive further agrees to
comply with all requirements placed on him by the Sarbanes-Oxley Act of 2002, Public Law 107-204.

Section 18.10. Tax Withholding. To the extent required by law, the Company shall deduct or withhold

from any payments under this Employment Agreement all applicable federal, state and local income taxes, Social
Security, Medicare, unemployment tax and other amounts that the Company determines in good faith are required by
law to be withheld.

Section 18.11. Counterparts. This Employment Agreement may be executed in one or more

counterparts, each of which shall be deemed to be an original, but all of which together shall constitute but one
document.

Section 18.12. Retention of Counsel. Executive acknowledges that he has had the opportunity to

review this Employment Agreement and the transactions contemplated hereby with his own legal counsel.

[The remainder of this page intentionally left blank]

24

IN WITNESS WHEREOF, this Employment Agreement has been duly executed by the Company and

Executive as of the date first above written.

EXECUTIVE:

/s/ Jeffrey R. Feeler
JEFFREY R. FEELER

COMPANY:

US ECOLOGY, INC.

/s/ John Sahlberg

By:
Name: John Sahlberg
Title: CHAIRMAN OF COMPENSATION
COMMITTEE OF THE BOARD OF
DIRECTORS

Exhibit 10.14

AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT

This AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT (this “Employment

Agreement”) is made and entered into effective as of the 22nd day of December, 2020 (the “Effective Date”), by and
between US ECOLOGY, INC., a Delaware corporation (the “Company”), and ERIC L. GERRATT (“Executive”).
The Company and Executive are sometimes collectively referred to herein as the “Parties,” and individually, as a
“Party.”

WHEREAS, immediately prior to the Effective Date, Executive rendered valuable services to the Company

in the capacity of Executive Vice President and Chief Financial Officer, pursuant to an Executive Employment
Agreement, dated February 25, 2016 (the “Prior Agreement”); and

WHEREAS, the Parties desire to amend and restate the Prior Agreement in its entirety as set forth herein and

to continue Executive’s employment with the Company as Executive Vice President and Chief Financial Officer on
the terms and conditions hereinafter set forth.

NOW, THEREFORE, in consideration of the premises, the mutual promises, covenants and conditions
herein contained and for other good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the Parties hereto, intending to be legally bound hereby, agree as follows:

1.0.      Employment.

Section 1.01.   Employment. The Company hereby employs Executive, and Executive hereby accepts

employment with the Company, all upon the terms and subject to the conditions set forth in this Employment
Agreement, effective as of the Effective Date first set forth above.

Section 1.02.   Term of Employment. The term of employment of Executive by the Company pursuant
to this Employment Agreement shall be for the period commencing on the Effective Date and ending December 31,
2021 (the “Employment Term”), or such earlier date that Executive’s employment is terminated in accordance with
the provisions of this Employment Agreement; provided, however, that the Employment Term shall automatically
renew for additional one year periods if neither the Company nor Executive has notified the other in writing of its or
his intention not to renew this Employment Agreement on or before 60 days prior to the expiration of the
Employment Term (including any renewal(s) thereof).

Section 1.03.   Capacity and Duties. During the Employment Term, Executive is and shall be

employed in the capacity of Executive Vice President and Chief Financial Officer of the Company and its
subsidiaries, and shall have such other duties, responsibilities and authorities as may be assigned to him from time to
time by the President and Chief Executive Officer (“CEO”) and the Board of Directors of the Company (the
“Board”), which are not materially inconsistent with Executive’s positions with the Company. Except as otherwise
herein provided, Executive shall devote his entire business time, best efforts and attention to promote and advance
the business of the Company and its subsidiaries and to perform diligently and

faithfully all the duties, responsibilities and obligations of Executive to be performed by him under this Employment
Agreement. Upon termination of Executive’s employment for any reason, unless otherwise requested by the Board,
Executive will be deemed to have resigned from the Board (and all other positions held at the Company and its
affiliates) voluntarily, without any further action by Executive, as of the end of Executive’s employment, and
Executive, at the Board’s request, will execute any documents necessary to reflect his resignation.

Section 1.04.   Place of Employment. Executive’s principal place of work shall be the main corporate
office of the Company, currently located in Boise, Idaho; provided, however, that the location of the Company and
any of its offices may be moved from time to time in the discretion of the Board.

Section 1.05.   No Other Employment. During the Employment Term, Executive shall not be

employed in any other business activity, whether or not such activity is pursued for gain, profit or other pecuniary
advantage; provided, however, that this restriction shall not be construed as preventing Executive from (i)
participating in charitable, civic, educational, professional, community or industry affairs; (ii) sitting on one outside
board of directors for a public or private company that does not compete with the Company, with the prior
concurrence of the Board that the required time commitment with respect to such position is acceptable; and (iii)
investing his personal assets in a business which does not compete with the Company or its subsidiaries or with any
other company or entity affiliated with the Company, where the form or manner of such investment will not require
services on the part of Executive in the operation of the affairs of the business in which such investment is made and
in which his participation is solely that of a passive investor or advisor, so long as the activities in clauses (i), (ii) and
(iii), above, do not materially interfere with the performance of Executive’s duties hereunder or create a potential
business conflict or the appearance thereof.

Section 1.06.   Adherence to Standards. Executive shall comply with the written policies, standards,

rules and regulations of the Company from time to time established for all executive officers of the Company
consistent with Executive’s position and level of authority, including, without limitation, policies relating to stock
ownership guidelines, clawback of compensation, hedging and pledging of securities and insider trading.

Section 1.07.   Review of Performance. The CEO shall periodically review and evaluate with

Executive his performance under this Employment Agreement.

2.0.      Compensation.

During the Employment Term, subject to all the terms and conditions of this Employment Agreement and as
compensation for all services to be rendered by Executive hereunder, the Company shall pay to or provide Executive
with the following:

Section 2.01.   Base Salary. During the Employment Term, the Company shall pay to Executive an

annual base salary (“Base Salary”) in an amount not less than Four Hundred

2

Twenty-Five Thousand and No/100 Dollars ($425,000.00). Such Base Salary shall be payable in accordance with the
regular payroll practices and procedures of the Company.

Section 2.02.   Incentive Pay. During the Employment Term, Executive shall be eligible to participate
in any cash incentive or bonus plans of the Company which are in effect for executives from time to time, including
the annual cash incentive payment opportunity granted to Executive under the Company’s Management Incentive
Plan (“MIP,” and together with any other cash incentive or bonus plans of the Company in which Executive
participates, the “Cash Incentive Plans”), subject to the terms and conditions thereof, at a minimum 75% of Base
Salary (“Target Bonus”) at a 100% of MIP target basis, with such MIP target to be set annually by the Board.
Anything to the contrary in this Employment Agreement notwithstanding, the Company reserves the right to modify
or terminate any or all of its Cash Incentive Plans at any time. In the event of any inconsistency between the terms of
this Employment Agreement and the terms of any Cash Incentive Plan, the Cash Incentive Plan shall govern and
control; provided, however, that any amount owed to Executive under a Cash Incentive Plan in accordance with the
terms thereof shall be paid to Executive no later than March 15 of the calendar year immediately following the
calendar year in which the applicable performance period ended.

Section 2.03.   Paid Time Off and Other Benefits. During the Employment Term, Executive shall be

entitled to Paid Time Off (“PTO”) consistent with the Company’s policy for senior executives (as in effect from time
to time), and shall have the right, on the same basis as other members of senior management of the Company, to
participate in any and all employee benefit plans and programs of the Company, including medical plans and other
benefit plans and programs as shall be, from time to time, in effect for executive employees and senior management
personnel of the Company. Such participation shall be subject to the terms of the applicable plan documents,
generally applicable Company policies and the discretion of the Board or any administrative or other committee
provided for in, or contemplated by, each such plan or program. Anything to the contrary in this Employment
Agreement notwithstanding, the Company reserves the right to modify or terminate such benefit plans and programs
at any time, including, without limitation, any modification of the Company’s PTO policy.

Section 2.04.   Expenses. The Company shall reimburse Executive for all reasonable, ordinary and
necessary business expenses including, but not limited to, automobile and other business travel and customer and
business entertainment expenses incurred by him during the Employment Term in connection with his employment
in accordance with the Company’s expense reimbursement policy; provided, however, Executive shall render to the
Company a complete and accurate accounting of all such business expenses in accordance with the substantiation
requirements of the Internal Revenue Code of 1986, as amended (the “Code”). Executive’s right to reimbursement
hereunder may not be liquidated or exchanged for any other benefit, the amount of expenses eligible for
reimbursement hereunder in a calendar year shall not affect the amount of expenses eligible for reimbursement
hereunder in any other calendar year, and Executive shall be reimbursed for eligible expenses no later than the close
of the calendar year immediately following the calendar year in which Executive incurs the applicable expense.

3

3.0.      Termination of Employment.

Section 3.01.   Termination of Employment. Executive’s employment and the Employment Term may
be terminated prior to expiration of the Employment Term as follows (with the date of termination being referred to
hereinafter as the “Termination Date”):

(a)        By either Party by delivering 60 days’ prior written notice of non-renewal as set forth in

Section 1.02 above;

(b)        Upon no less than 30 days’ written notice from the Company to Executive at any time without

Cause (as hereinafter defined) and other than due to Executive’s death or Disability, subject to the provisions of
Section 4.02 below;

(c)        By the Company for Cause (as hereinafter defined) immediately upon written notice stating

the basis for such termination;

(d)        Immediately upon the death of Executive;

(e)        Due to the Disability (as hereinafter defined) of Executive;

(f)        By Executive due to Retirement (as hereinafter defined) upon 90 days’ prior written notice to

the Company stating that Executive does not intend to engage in full-time employment following such termination of
employment;

(g)        By Executive at any time with or without Good Reason (as hereinafter defined), other than

due to Retirement, upon 30 days’ written notice from Executive to the Company (or such shorter period to which the
Company may agree); or

(h)        Upon the mutual agreement of the Company and Executive.

Section 3.02.   Certain Definitions. For purposes of this Employment Agreement, the following terms

have the meanings set forth below:

(a)        “Cause” shall mean, by reason of a determination by two-thirds (2/3) of the members of the
Board (excluding, for all such purposes, Executive, if Executive is a member of the Board) voting, that Executive:

(i)         Has engaged in willful neglect (other than neglect resulting from his incapacity due to
physical or mental illness) of Executive’s duties or willful misconduct in the performance of his duties for the
Company under this Employment Agreement, or has willfully violated any material written policy of the
Company;

(ii)       Has engaged in willful or grossly negligent conduct the consequences of which are

materially adverse to the Company, monetarily or otherwise;

4

(iii)      Has failed to follow the lawful instructions of the CEO or the Board that are consistent

with his position as Executive Vice President and Chief Financial Officer;

(iv)       Has materially breached the terms of this Employment Agreement, and such breach

persisted after notice thereof from the Company and a reasonable opportunity to cure; or

(v)        Has been convicted of (or has plead guilty or no contest to) any felony (other than a

traffic violation) or any misdemeanor involving moral turpitude.

(b)        “Disability” shall mean that, as a result of Executive’s incapacity due to physical or mental

illness, Executive is considered disabled under the Company’s Long-Term Disability Plan or, in the absence of such
plan, Executive is unable (without reasonable accommodation), as determined by the Board in good faith, to perform
Executive’s essential duties, responsibilities and functions under this Employment Agreement for a period of 180
days during any 12 consecutive months.

(c)        “Good Reason” shall mean the occurrence of any of the following without Executive’s prior

written consent during the Employment Term:

(i)         Any material diminution or adverse change in Executive’s title, authority,

responsibilities or duties under this Employment Agreement which are materially inconsistent with his title,
authority, responsibilities or duties set forth in this Employment Agreement, or any removal of Executive
from, or failure to appoint, elect, reappoint or reelect Executive to, any of his positions, except in connection
with the termination of his employment with or without Cause, or as a result of his death or Disability;

(ii)       The exclusion of Executive from any incentive, bonus or other similar plan in which

Executive participated at the time that this Employment Agreement is executed, unless an equitable
arrangement (embodied in an ongoing substitute or alternative plan) has been made with respect to the failure
to continue such plan, or the failure by the Company to continue Executive’s participation therein, or any
action by the Company which would directly or indirectly materially reduce his participation therein or
reward opportunities thereunder; provided, however, that Executive continues to meet all eligibility
requirements thereof. Notwithstanding the foregoing, this provision shall not apply to the exclusion of
Executive from any incentive, bonus or other similar plan in which Executive participated at the time that this
Employment Agreement is executed to the extent that such termination is required by law, or applies to all of
the Company’s executive officers and/or employees generally.

(iii)      The failure by the Company to include or continue Executive’s participation in any
material employee benefit plan (including any medical, hospitalization, life insurance or disability benefit
plan in which Executive participates or in which other Company executives participate), or any material
fringe benefit or

5

prerequisite enjoyed by him unless an equitable arrangement (embodied in an ongoing substitute or
alternative plan, if applicable) has been made with respect to the failure to include Executive in such plan, or
the failure by the Company to continue Executive’s participation therein, or any action by the Company
which would directly or indirectly materially reduce his participation therein or reward opportunities
thereunder, or the failure by the Company to provide him with the benefits to which he is entitled under this
Employment Agreement; provided, however, that Executive continues to meet all eligibility requirements
thereof. Notwithstanding the foregoing, this provision shall not apply to the exclusion of Executive from any
employee benefit plan in which Executive participated at the time that this Employment Agreement is
executed to the extent that such exclusion is required by law, or applies to all of the Company’s executive
officers and/or employees generally;

(iv)       Any material breach by the Company of any provision of this Employment

Agreement; or

(v)        The relocation of the main corporate office of the Company beyond a 50 mile radius

from Boise, Idaho or beyond a fifty (50) mile radius from Executive’s primary place of employment if not in
the corporate office, in each case which materially increases Executive’s commute.

Notwithstanding any other provision of this Employment Agreement to the contrary, Executive shall be
deemed not to have terminated his employment for Good Reason unless (i) Executive notifies the Board in writing of
the condition that Executive believes constitutes Good Reason within 90 days after the initial existence thereof
(which notice specifically identifies such condition and the details regarding its existence), (ii) the Company fails to
remedy such condition within 30 days after the date on which the Board receives such notice (the “Remedial
Period”), and (iii) Executive terminates employment with the Company (and its subsidiaries and affiliates) within 60
days after the end of the Remedial Period. The failure by Executive to include in the notice any fact or circumstance
that contributes to a showing of Good Reason shall not waive any right of Executive hereunder or preclude Executive
from asserting such fact or circumstance in enforcing Executive’s rights hereunder.

(d)        “Retirement” shall mean Executive’s termination of employment with the Company and its

subsidiaries for any reason (other than for Cause, or when grounds for Cause exist, or due to Executive’s death) after
attaining age [52] and having been employed by the Company or its subsidiaries for not less than 10 consecutive
years as of immediately prior to such termination of employment.

4.0.      Payments and Benefits Upon Termination of Employment.

Section 4.01.   Termination by the Company For Cause or by Executive Without Good Reason. If
Executive’s employment and the Employment Term are terminated by the Company for Cause or by Executive
without Good Reason (but not due to Retirement), the Company shall pay Executive the Accrued Obligations (as
hereinafter defined) (other than, however, any amounts due under any Cash Incentive Plan which shall be forfeited
pursuant to

6

the terms of such plan), in a single, lump-sum payment in accordance with the regular payroll practices and
procedures of the Company but in no event longer than 45 days following such termination (or on such earlier date
required by applicable law).

Section 4.02.   Termination by the Company Without Cause or by Executive For Good Reason.

Subject to Section 5.0 below, if Executive’s employment and the Employment Term are terminated by the Company
without Cause or if Executive terminates his employment and the Employment Term for Good Reason, the Company
shall pay Executive the Accrued Obligations in a single, lump-sum payment in accordance with the regular payroll
practices and procedures of the Company but in no event longer than 45 days following such termination (or on such
earlier date required by applicable law) or, in the case of a Cash Incentive Plan payment, according to the terms of
such plan but no later than March 15 of the calendar year immediately following the calendar year in which the
applicable performance period ended. In addition, subject to Sections 5.0, 6.0 and 7.0, in the event of such a
termination, Executive shall be entitled to receive the following:

(i)         an amount equal to the sum of two year’s Base Salary and two times Target Bonus

(“Severance Payment”), which shall be payable during the two year period immediately following the
Termination Date as provided below;

(ii)       continued vesting of outstanding stock options and stock appreciation rights for a

period of two years following the Termination Date, with any stock option and stock appreciation right held
by Executive immediately prior to such termination that is, or becomes, vested to remain exercisable until the
earlier of the second anniversary of the Termination Date and the original expiration date of such stock option
or stock appreciation right (as applicable);

(iii)      immediate vesting of any restricted stock grants that would have vested during the two-

year period immediately following the Termination Date;

(iv)       continued vesting of restricted stock unit grants for a period of two years following the

Termination Date in the same manner as if no such termination had occurred;

(v)        continued vesting of performance stock and performance stock units in the same

manner as if no termination of employment had occurred, with payment calculated based on actual
performance but with vesting to be pro-rated based on the number of days from the start of the performance
period through the second anniversary of the Termination Date in relation to the total number of days in the
performance period (provided that such pro-ration shall not result in a pro-ration factor greater than 1);

(vi)       reimbursement of Executive’s and his eligible dependents’ insurance premiums

pursuant to the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended (“COBRA”) under the
Company’s medical, dental and vision plans if Executive and Executive’s eligible dependents are eligible for,
and timely elect, COBRA continuation coverage, with such reimbursements to be provided for a period of the
lesser

7

of 18 months immediately following the Termination Date or the date Executive or such dependent receives
similar or comparable coverage from a new employer, a spouse or the employer of a spouse; provided,
however, that the Company may unilaterally amend this clause (v) or eliminate the benefit provided
hereunder to the extent it deems necessary to avoid the imposition of excise taxes, penalties or similar charges
on the Company or any of its subsidiaries or affiliates, including, without limitation, under Code Section
4980D, or to the extent that this provision violates applicable law or non-discrimination rules (Executive
understands that such COBRA reimbursement may be treated as taxable, in which case, Executive shall be
grossed-up for such taxes in accordance with Section 409A);

(vii)     6 monthly payments each in an amount equal to the greater of (x) two (2) times the

monthly COBRA insurance premiums as of the Termination Date under the Company’s medical, dental and
vision plans and (y) $5,000, in either case as compensation for Executive’s loss of participation in certain of
the Company’s employee benefit plans, which shall commence on the first payroll date following the 18-
month anniversary of the Termination Date; and

(viii)    24 monthly cash payments each in an amount equal to two (2) times the monthly

premiums as of the Termination Date for the life insurance and long-term disability insurance coverage under
the Company’s life insurance and long-term disability plans covering Executive as of immediately prior to the
Termination Date (the “L&D Payments”), which shall be payable during the two year period immediately
following the Termination Date as provided below.

All payments and benefits under this Section 4.02 (other than the Accrued Obligations) shall be conditional on
Executive’s timely execution and non-revocation of the Release (as defined in Section 6.0) and Executive’s
continued compliance with Section 9.0, Section 12.0, Section 13.0, and Section 14.0. Payment of the Severance
Payment and the L&D Payments shall be made in substantially equal installments in accordance with the regular
payroll practices and procedures of the Company commencing on the first payroll date occurring after Executive’s
Release becomes effective (but not later than sixty (60) days after the Termination Date); provided, however, that the
first such payment shall include any installments that would have been made on previous payroll dates but for the
requirement that Executive execute a Release. For the avoidance of doubt, a termination of employment pursuant to
Section 3.01(a) by notice of non-renewal by the Company for any reason other than Cause, shall be deemed a
termination of employment by the Company without Cause for purposes of this Section 4.02 and Section 5, as
applicable.

Section 4.03.   Termination Due to Death. If Executive’s employment and the Employment Term are 

terminated due to Executive’s death, the Company shall pay the estate of Executive the Accrued Obligations in a 
single, lump-sum payment within 45 days following such termination (or on such earlier date required by applicable 
law) or, in the case of a Cash Incentive Plan payment, according to the terms of such plan but no later than March 15 
of the calendar year immediately following the calendar year in which the applicable performance period ended. In 
addition, in the event of such a termination of employment: (i) all unvested

8

stock options, stock appreciation rights, restricted stock, restricted stock units, performance stock and performance
stock units will immediately vest (with performance being deemed achieved at target), (ii) all restricted stock units
and performance stock units that become vested under clause (i) shall be settled within 30 days after the Termination
Date and (iii) all stock options and stock appreciation rights held by Executive as of immediately prior to such
termination shall remain exercisable until their normal expiration date.

Section 4.04.   Termination Due to Disability. If Executive’s employment and the Employment Term

are terminated due to his Disability, the Company shall pay Executive the Accrued Obligations in a single, lump-sum
payment in accordance with the regular payroll practices and procedures of the Company but in no event longer than
45 days following such termination (or on such earlier date required by applicable law) or, in the case of a Cash
Incentive Plan payment, according to the terms of such plan but no later than March 15 of the calendar year
immediately following the calendar year in which the applicable performance period ended. In addition, in the event
of such a termination of employment: (i) all unvested stock options, stock appreciation rights, restricted stock,
performance stock and performance stock units (but only performance stock units that are not subject to Section
409A (as hereinafter defined)) will immediately vest (with performance being deemed achieved at target), (ii) all
restricted stock units will continue to vest for a period of two years following the Termination Date in the same
manner as if no such termination had occurred (provided that if such termination occurs within 24 months after a
Change of Control, any restricted stock units granted after the Effective Date will vest in full upon such termination
and shall be settled within 30 days thereafter), (iii) any performance stock units that are subject to Section 409A will
continue to vest in the same manner as if no such termination of employment had occurred, with performance
deemed achieved at target (provided that if such termination occurs within 24 months after a Change of Control, any
performance stock units that are subject to Section 409A granted after the Effective Date will vest in full upon such
termination with performance being deemed achieved at target and shall be settled within 30 days thereafter), (iv) all
performance stock units that become vested under clause (i) shall be settled within 30 days after the Termination
Date and (v) all stock options and stock appreciation rights held by Executive as of immediately prior to such
termination shall remain exercisable until their normal expiration date; provided, however, that such continued
vesting and exercisability of any restricted stock, restricted stock units, stock options, stock appreciation rights,
performance stock units and performance stock under this Section 4.04 shall be conditional on Executive’s timely
execution and non-revocation of the Release and Executive’s continued compliance with Section 9.0, Section 12.0,
Section 13.0, and Section 14.0 below.

Section 4.05.   Retirement. If Executive’s employment and the Employment Term are terminated by
virtue of Executive’s Retirement, the Company shall pay Executive the Accrued Obligations in a single, lump-sum
payment in accordance with the regular payroll practices and procedures of the Company but in no event longer than
45 days following such termination (or on such earlier date required by applicable law) or, in the case of a Cash
Incentive Plan payment, according to the terms of such plan but no later than March 15 of the calendar year
immediately following the calendar year in which the applicable performance period ended.

9

Section 4.06.   Definition of Accrued Obligations. “Accrued Obligations” shall mean (i) any earned

but unpaid Base Salary through the Termination Date and any PTO that is accrued but unused as of the Termination
Date (with such accrual determined in accordance with the Company’s PTO policy); (ii) any unreimbursed business
expenses incurred through the Termination Date that are otherwise reimbursable in accordance with Company
policy; (iii) all other payments, benefits or fringe benefits to which Executive may be entitled under the terms of any
applicable compensation arrangement or benefit, equity or fringe benefit plan or program or grant or this
Employment Agreement; and (iv) subject to forfeiture of any such payments under the terms of the applicable Cash
Incentive Plan (x) to the extent unpaid, any cash incentive earned under any Cash Incentive Plan for the fiscal year
prior to the year in which Executive’s termination occurs and (y) any cash incentive earned under any Cash Incentive
Plan in the year of Executive’s termination of employment based on actual results over the entire performance period
and shall be paid on a pro-rata basis based on days employed during the fiscal year of such plan if any. With respect
to clause (iv)(y) of this Section 4.06, for the sake of clarity and by way of example only, if Executive is employed for
270 days of a fiscal year and the management incentive plan in place at the time pays out 100% of target, Executive
would be owed 74% (270/365) of any incentive payments to which he would have been entitled had his employment
not been terminated. Such payments under clause (iv) hereof shall be made in accordance with the terms of any Cash
Incentive Plan in effect at the time, except that any requirement that the recipient must be an employee at the time of
payment shall be waived by the Company under this policy.

5.0.      Payment and Benefits Upon Certain Terminations in Connection with a Change of Control.

Section 5.01.   Change of Control Severance Benefits. Subject to Sections 6.0 and 7.0 below, if within

24 months after a Change of Control, Executive’s employment and the Employment Term are terminated by the
Company without Cause (but not due to death or Disability) or by Executive for Good Reason, then Executive shall
receive:

(i)         in lieu of the Severance Payment, a payment equal to two times the sum of (x) his

annual Base Salary; and (y) the greater of (a) any earned but unpaid amount due under any Cash Incentive
Plan (as determined by the terms of the Cash Incentive Plan); and (b) Executive’s Target Bonus amount
(collectively, the “Change of Control Payment”);

(ii)       the payments and benefits set forth in clauses (vi), (vii) and (viii) of Section 4.02 at the

times provided therein;

(iii)      full vesting of all unvested stock options, stock appreciation rights, restricted stock,
restricted stock units (but only to the extent such restricted stock units are granted after the Effective Date),
performance stock units (but only to the extent such performance stock units (x) are not subject to Section
409A or (y) are subject to Section 409A but are granted after the Effective Date) and performance stock (with
all stock options and stock appreciation rights to remain exercisable through their normal expiration date,
with performance with respect to any performance-based awards to be

10

deemed achieved at target and with all restricted stock units and performance stock units that become vested
under this clause (iii) to be settled within 30 days after the Termination Date), provided, however, that if
unvested stock options, stock appreciation rights, restricted stock, performance stock units (to the extent not
subject to Section 409A) and performance stock held by Executive are not continued, substituted for or
assumed by the successor company in connection with a Change of Control, such awards shall immediately
vest upon the Change of Control;

(iv)       with respect to any restricted stock units that are outstanding on the Effective Date,

continued vesting of such restricted stock units in the same manner as if no such termination of employment
had occurred; and

(v)        with respect to any performance stock units that are subject to Section 409A that are

outstanding on the Effective Date, continued vesting of such performance stock units in the same manner as if
no such termination of employment had occurred (with payment based on target performance).

The Change of Control Payment shall be paid in a single lump-sum payment on the first payroll date after the
effective date of the Release, but in any event within 60 days after the Termination Date.

In the event of a termination described in this Section 5.0, Executive also shall be entitled to receive the Accrued
Obligations (to be provided in accordance with Section 4.02).

In the event of an inconsistency between this Section 5.0 and Section 4.02, this Section 5.0 shall govern and control.

Section 5.02.   Definition of Change of Control. A “Change of Control” shall be deemed to have

occurred upon:

(i)         The consummation of a reorganization, merger, statutory share exchange or consolidation or similar

transaction involving the Company (each, a “Business Combination”), unless, following such Business
Combination, all or substantially all of the individuals and entities that were the beneficial owners of the combined
voting power of the Company’s outstanding securities immediately prior to such Business Combination beneficially
own, directly or indirectly, at least 60% of the combined voting power of the then-outstanding securities of the entity
resulting from such Business Combination; provided, however, that a public offering of the Company’s securities
shall not constitute a Business Combination;

(ii)       The sale, transfer, or other disposition of all or substantially all of the Company’s assets;

(iii)      Any transaction as a result of which any person is the “beneficial owner” (as defined in Rule 13d-3

under the Securities Exchange Act of 1934, as amended (the “1934 Act”)), directly or indirectly, of securities of the
Company representing more than 30% of the total voting power represented by the Company’s then outstanding
voting securities. For purposes of this subparagraph (iii), the term “person” shall have the same meaning as when
used in sections

11

13 and 14(d) of the 1934 Act, but shall exclude (x) a trustee or other fiduciary holding securities under an employee
benefit plan of the Company or of a subsidiary; (y) a corporation owned directly or indirectly by the stockholders of
the Company in substantially the same proportions as their ownership of the common stock of the Company; and (z)
any person or entity owning more than 30% of the total voting power represented by the Company’s then outstanding
voting securities immediately prior to such transaction; or

(iv)       A change in the composition of the Board in any 12-month period as a result of which fewer than a

majority of the directors are Incumbent Directors. “Incumbent Directors” shall mean directors who either (a) are
directors of the Company as of the start of the period or (b) are elected, or nominated for election, to the Board with
the affirmative votes (either by a specific vote or by approval of the proxy statement of the Company in which such
person is named as a nominee for election as a director without objection to such nomination) of at least a majority of
the Incumbent Directors at the time of such election or nomination (but shall not include an individual whose
election or nomination is in connection with an actual or threatened proxy contest relating to the election of directors
of the Company).

Notwithstanding the foregoing or anything contained herein to the contrary, no transaction or event shall be a
Change of Control unless it also satisfies the requirements of Treasury Regulation Section 1.409A-3(i)(5)(v), (vi) or
(vii).

6.0.      Release.

Executive’s entitlement to the payments and benefits described in Section 4.02, Section 4.04, Section 4.05
and Section 5.0, in each case, other than the Accrued Obligations, is subject to and conditioned upon Executive’s
timely execution, without subsequent revocation, of a release of claims in favor of the Company and its subsidiaries
and affiliates in form and substance satisfactory to the Company (the “Release”); provided, however, that
notwithstanding the foregoing, the Release is not intended to and will not waive Executive’s rights: (i) to
indemnification pursuant to any applicable provision of the Company’s Bylaws or Certificate of Incorporation, as
amended, pursuant to any written indemnification agreement between Executive and the Company, or pursuant to
applicable law; (ii) to vested benefits or payments specifically to be provided to Executive under this Employment
Agreement or any Company employee benefit plans or policies; or (iii) respecting any claims Executive may have
solely by virtue of Executive’s status as a stockholder of the Company. The Release also shall not impose any
restrictive covenant on Executive’s conduct post-termination that Executive had not agreed to prior to Executive’s
termination in this Agreement or otherwise or include claims that an employee cannot lawfully release through
execution of a general release of claims.

To be timely, the Release must become effective (i.e., Executive must sign it and any revocation period must
expire without Executive revoking the Release) within 60 days, or such shorter period specified in the Release, after
Executive’s date of termination of employment. If the Release does not become effective within such time period,
then Executive shall not be entitled to such payments and benefits. The Company is obligated to provide Executive
the Release within 7 calendar days after the Termination Date and Executive shall have a minimum of 21 calendar
days to review and comment on the Release.

12

Notwithstanding anything contained in this Employment Agreement to the contrary, if payment or provision

of any amounts under Section 4.02, Section 4.04, Section 4.05 and Section 5.0, in each case, on which Executive’s
execution and non-revocation of the Release is conditioned, could commence in more than one calendar year based
on when the Release could be executed (regardless of when the Release is executed), then to the extent any such
amounts are treated as nonqualified deferred compensation under Section 409A (as hereinafter defined) any such
amounts that otherwise would have been paid or provided in such first calendar year instead shall be withheld and
paid or provided on the first payroll date in such second calendar year with all remaining payments and benefits to be
made as if no such delay had occurred.

7.0.      Compliance With Section 409A.

Section 7.01.   General. The provisions of this Employment Agreement are intended to comply with

the requirements of Section 409A of the Code and any regulations and official guidance promulgated thereunder
(“Section 409A”) or an exemption or exclusion therefrom and, with respect to amounts that are subject to Section
409A, shall in all respects be interpreted in accordance with Section 409A. Any payments that qualify for the “short-
term deferral” exception or another exception under Section 409A shall be paid under the applicable exception. Each
payment of compensation under this Employment Agreement shall be treated as a separate payment of compensation
for purposes of Section 409A and a right to a series of installment payments under this Employment Agreement
(including pursuant to Section 4.02) shall be treated as a right to a series of separate and distinct payments. All 
payments to be made upon a termination of employment under this Employment Agreement that are treated as 
nonqualified deferred compensation under Section 409A may only be made upon a “separation from service” under 
Section 409A. In no event may Executive, directly or indirectly, designate the calendar year of any payment under 
this Employment Agreement. For purposes of this Employment Agreement, a termination of Executive’s 
employment as a result of Disability, by the Company without Cause or by Executive for Good Reason, in each case, 
is intended to constitute an “involuntary separation” within the meaning of, and for purposes of, Section 409A, and 
this Employment Agreement shall be interpreted accordingly.

Section 7.02.   In-Kind Benefits and Reimbursements. Notwithstanding anything to the contrary in this

Employment Agreement, all reimbursements and in-kind benefits provided hereunder shall be made or provided in
accordance with the requirements of Section 409A, including, where applicable, the requirement that (a) any
reimbursement is for expenses incurred during Executive’s lifetime (or during a shorter period of time specified
herein); (b) the amount of expenses eligible for reimbursement, or in-kind benefits provided, during a calendar year
may not affect the expenses eligible for reimbursement, or in-kind benefits to be provided, in any other calendar year,
except, if such benefits consist of the reimbursement of expenses referred to in Section 105(b) of the Code, a
maximum, if provided under the terms of the plan providing such medical benefit, may be imposed on the amount of
such reimbursements over some or all of the period in which such benefit is to be provided to Executive as described
in Treasury Regulation Section 1.409A-3(i)(1)(iv)(B); (c) the reimbursement of an eligible expense will be made no
later than the last day of the calendar year immediately following the calendar year in which the expense is incurred,
provided that reimbursement shall be made only if Executive has submitted an invoice for such expenses at least 10
days before the end of the calendar year

13

immediately following the calendar year in which such expenses were incurred; and (d) the right to reimbursement or
in-kind benefits is not subject to liquidation or exchange for another benefit.

Section 7.03.   Delay of Payments. Notwithstanding any other provision of this Employment

Agreement to the contrary, if Executive is considered a “specified employee” for purposes of Section 409A (as
determined in accordance with the methodology established by the Company as in effect on the date of termination
of employment), any payment that constitutes nonqualified deferred compensation within the meaning of Section
409A that is otherwise due to Executive hereunder during the six-month period immediately following Executive’s
separation from service (as determined in accordance with Section 409A) on account of Executive’s separation from
service shall be accumulated and paid to Executive on the first business day after the date that is six months
immediately following Executive’s separation from service (the “Delayed Payment Date”). Executive shall be
entitled to interest (at a per annum rate equal to the highest rate of interest applicable to six-month non-callable
certificates of deposit with daily compounding offered by the following institutions: Citibank, N.A., Wells Fargo
Bank, N.A. or Bank of America, on the date of such separation from service) on any cash payments so delayed from
the scheduled date of payment to the Delayed Payment Date. If Executive dies during the postponement period, the
amounts and entitlements delayed on account of Section 409A shall be paid to the personal representative of
Executive’s estate on the first to occur of the Delayed Payment Date or 30 days after the date of Executive’s death.

Section 7.04.   Cooperation. Executive and the Company agree to work together in good faith to
consider amendments to this Employment Agreement and to take such reasonable actions which are necessary,
appropriate or desirable to avoid imposition of any additional tax or income recognition prior to actual payment to
Executive under Section 409A.

Section 7.05.   No Liability. Notwithstanding anything contained in this Employment Agreement to

the contrary, neither the Company nor any of its subsidiaries or affiliates shall have any liability or obligation to
Executive or to any other person or entity in the event that this Employment Agreement, or any of the payments or
benefits provided under this Employment Agreement, does not comply with, or is not exempt from, Section 409A.

8.0.      Limitation on Payments.

Notwithstanding any other provision of this Employment Agreement or any other agreement or arrangement

between Executive and the Company or any of its affiliates, in the event that the payments and other benefits
provided for in this Employment Agreement, together with all other payments and benefits that Executive receives or
is entitled to receive from the Company or any of its subsidiaries, (i) constitute “parachute payments” within the
meaning of Section 280G of the Code and (ii) but for this Section 8.0, would be subject to the excise tax imposed by
Section 4999 of the Code, then such payments and benefits will be either:

(a)        delivered in full; or

(b)        delivered as to such lesser extent as would result in no portion of such payments and benefits

being subject to excise tax under Section 4999 of the Code,

14

whichever of the foregoing amounts, taking into account the applicable federal, state and local income taxes and the
excise tax imposed by Section 4999 of the Code, results in the receipt by Executive on an after-tax basis, of the
greatest amount of payments and benefits, notwithstanding that all or some portion of such payments and benefits
may be taxable under Section 4999 of the Code. If a reduction in payments and benefits constituting “parachute
payments” is necessary so that payments and benefits are delivered to a lesser extent under Section 8.0(b) hereof,
reduction shall occur in the following order: (i) reduction of cash severance payments (reduced from the latest
scheduled payments to the earliest scheduled payments); (ii) cancellation of any equity awards that are included
under Section 280G of the Code at full value rather than accelerated value (reduced from highest value to lowest
value under Section 280G of the Code and, if such values are the same, from latest to earliest scheduled vesting
dates); (iii) cancellation of the accelerated vesting of any equity awards included under Section 280G of the Code at
an accelerated value (and not at full value), which shall be reduced with the highest value reduced first (as such
values are determined under Treasury Regulation Section 1.280G-1, Q&A 24) (and if such values are the same, from
latest to earliest vesting dates); and (iv) reduction of any other non-cash benefits (including the value of the
accelerated payment of any cash payments), reduced in the order of highest to lowest value under Code Section 280G
(and if such values are the same, from latest to earliest payment dates); provided, in each case, that any such
reduction shall be made in a manner consistent with the requirements of Section 409A. Unless the Company and
Executive otherwise agree in writing, any determination required under this Section 8.0 will be made in writing by an
independent, nationally recognized accounting firm selected by the Company (the “Firm”), whose determination will
be conclusive and binding upon Executive and the Company for all purposes. For purposes of making the
calculations required by this Section 8.0, the Firm may make reasonable assumptions and approximations concerning
applicable taxes and may rely on reasonable, good faith interpretations concerning the application of Sections 280G
and 4999 of the Code. The Company and Executive will furnish to the Firm such information and documents as the
Firm may reasonably request in order to make a determination under this Section 8.0. The Company will bear all
costs the Firm may reasonably incur in connection with any calculations contemplated by this Section 8.0.

9.0.      Return of Property.

Executive agrees, upon the termination of his employment with the Company or upon the earlier written

request of the Company, to return to the Company all physical, computerized, electronic or other types of records,
documents, proposals, notes, lists, files and any and all other materials, including without limitation, computerized
and/or electronic information that refers, relates or otherwise pertains to the Company and/or its subsidiaries, and any
and all business dealings of said persons and entities. In addition, Executive shall return to the Company all property
and equipment that Executive has been issued during the course of his employment or which he otherwise then
possesses or has control over, including but not limited to, any computers, cellular phones, personal digital assistants,
pagers and/or similar items. Executive shall immediately deliver to the Company any such physical, computerized,
electronic or other types of records, documents, proposals, notes, lists, files, materials, property and equipment that
are in Executive’s possession or control. Executive further agrees that he will immediately forward to the Company
any business information regarding the Company and/or its subsidiaries that has been or is inadvertently directed to
Executive following his last day of employment with

15

the Company. The provisions of this Section 9.0 are in addition to any other written agreements on this subject that
Executive may have with the Company and/or its subsidiaries, and are not meant to and do not excuse any additional
obligations that Executive may have under such agreements.

10.0.    Notices.

For the purposes of this Employment Agreement, notices and all other communications provided for

hereunder shall be in writing and shall be deemed to have been duly given when personally delivered or sent by
certified mail, return receipt requested, postage prepaid, or by expedited (overnight) courier with established national
reputation, shipping prepaid or billed to sender, in either case addressed to the respective addresses last given by each
Party to the other (provided that all notices to the Company shall be directed to the attention of the CEO) or to such
other address as either Party may have furnished to the other in writing in accordance herewith. All notices and
communications shall be deemed to have been received on the date of delivery thereof, or on the second day after
deposit thereof with an expedited courier service, except that notice of change of address shall be effective only upon
receipt. Notices shall be addressed as follows:

If to the Company:
101 S. Capitol Blvd., Suite 1000
Boise, Idaho 83702

If to Executive:
As on file with the Company’s Corporate Secretary

11.0.    Life Insurance.

The Company may, at any time after the execution of this Employment Agreement, apply for and procure as

owner and for its own benefit, life insurance on Executive, in such amounts and in such form or forms as the
Company may determine. Executive shall, at the request of the Company, submit to such medical examinations,
supply such information, and execute such documents as may be required by the insurance company or companies to
whom the Company has applied for such insurance.

12.0.    Confidentiality.

Executive agrees not to disclose or reveal to any person or entity outside the Company or any of its
subsidiaries any confidential, trade secret, proprietary or other non-public information concerning the Company, any
of its subsidiaries or any of the businesses or operations of the Company or any of its subsidiaries (“Confidential
Information”), including all information relating to any Company or subsidiary product, process, equipment,
machinery, design, formula, business plan or strategy, or other activity without prior permission of the Company in
writing.

16

Confidential Information shall not include any information which is in the public domain or becomes publicly
known, in either case, through no wrongful act on the part of Executive or breach of this Employment Agreement.
Executive acknowledges that the Confidential Information is vital, sensitive, confidential and proprietary to the
Company or its subsidiaries. The obligation to protect the secrecy of such information continues after employment
with Company or any of its subsidiaries may be terminated. In furtherance of this agreement, Executive
acknowledges that all Confidential Information which Executive now possesses, or shall hereafter acquire,
concerning and pertaining to the business and secrets of the Company or any of its subsidiaries and all inventions or
discoveries made or developed, or suggested by or to Executive during said term of employment relating to the
Company’s or any of its subsidiaries’ business shall, at all times and for all purposes, be regarded as acquired and
held by Executive in his fiduciary capacity and solely for the benefit of the Company or any of its subsidiaries.

Pursuant to 18 U.S.C. § 1833(b), Executive understands that he will not be held criminally or civilly liable

under any federal or state trade secret law for the disclosure of a trade secret of the Company or any of its
subsidiaries that (i) is made (A) in confidence to a federal, state, or local government official, either directly or
indirectly, or to his attorney and (B) solely for the purpose of reporting or investigating a suspected violation of law;
or (ii) is made in a complaint or other document that is filed under seal in a lawsuit or other proceeding. Executive
understands that if he files a lawsuit for retaliation by the Company or any of its subsidiaries for reporting a
suspected violation of law, he may disclose the trade secret to his attorney and use the trade secret information in the
court proceeding if he (I) files any document containing the trade secret under seal, and (II) does not disclose the
trade secret, except pursuant to court order. Nothing in this Employment Agreement, or any other agreement that
Executive has with the Company, is intended to conflict with 18 U.S.C. § 1833(b) or create liability for disclosures
of trade secrets that are expressly allowed by such section. Further, nothing in this Employment Agreement or any
other agreement that Executive has with the Company or any of its affiliates shall prohibit or restrict him from
making any voluntary disclosure of information or documents concerning possible violations of law to any
governmental agency or legislative body, or any self-regulatory organization, in each case, without advance notice to
the Company.

13.0.    Work Product Assignment.

Executive agrees that all inventions, innovations, discoveries, improvements, technical information, systems,

software developments, methods, designs, analyses, data, drawings, reports, works of authorship, service marks,
trademarks, trade names, logos and all similar or related information or developments (whether patentable or
unpatentable) which relate to the actual or anticipated business, research and development or existing or future
products or services of the Company or of any of its subsidiaries or affiliates, and which are conceived, developed or
made by Executive (whether or not during usual business hours and whether or not alone or in conjunction with any
other person) while employed by the Company, together with all patent applications, letters patent, trademark, trade
name and service mark applications or registrations, copyrights and reissues thereof that may be granted for or upon
any of the foregoing and any other intellectual property right or other proprietary rights in any of the foregoing
(collectively referred to herein as the “Work Product”), are in all instances the exclusive property of the Company,
and Executive hereby irrevocably assigns to the Company

17

all Work Product and all of his interest therein, including all rights to claim and recover damages and/or injunctive
relief for past, present, and future infringement or violation of any Work Product. Executive agrees to promptly make
full written disclosure to the Company of any and all Work Product. Executive will promptly perform all actions
reasonably requested by the Board (whether during or after his employment with the Company) to establish and
confirm the ownership of such Work Product (including, without limitation, the execution and delivery of
assignments, consents, powers of attorney and other instruments) by the Company or its subsidiaries or affiliates, as
applicable, and to provide reasonable assistance to the Company or any of its subsidiaries and affiliates in connection
with the prosecution of any applications for patents, trademarks, trade names, service marks or reissues thereof or
other intellectual property rights, or in the prosecution, maintenance, enforcement and defense of any intellectual
property rights or other proprietary rights in any Work Product. Without limiting the foregoing, Executive hereby
irrevocably designates and appoints the Company and its duly authorized officers and agents as Executive’s agent
and attorney-in-fact, to act for and on Executive’s behalf to execute and file any such application or applications or
other documents and to do all other lawfully permitted acts to further the prosecution and issuance of letters patent,
copyright or trademark registrations or any other legal protection thereon with the same legal force and effect as if
executed by Executive.

14.0.    Covenant Not to Compete, Not to Solicit and Not to Disparage.

Section 14.01. Acknowledgment of Executive. Executive acknowledges that his employment with the

Company has special, unique and extraordinary value to the Company; that the Company has a lawful interest in
protecting its investment in entrusting its Confidential Information to him; that the Company would be irreparably
damaged if Executive were to provide services to any person or entity in violation of this Employment Agreement;
that in performing such services Executive would inevitably disclose the Company’s Confidential Information to
third parties; and that the restrictions, prohibitions and other provisions of this Section 14.0 are reasonable, fair and
equitable in scope, terms, and duration to protect the legitimate business interests of the Company, and are a material
inducement to the Company to enter into this Employment Agreement.

Section 14.02. Non-Competition Covenant. Without the consent in writing of the Board, Executive

will not, during Executive’s employment with the Company and (i) for a period of 18 months after a termination of
employment by the Company without Cause, including for non-renewal of the Employment Term, or by Executive
for Good Reason or (ii) for a period of 12 months after a termination of employment by Executive without Good
Reason, acting alone or in conjunction with others, directly or indirectly engage anywhere in the United States or any
other country in which the Company conducts business (either as owner, investor, partner, stockholder, employer,
employee, consultant, advisor or director) in activities on behalf of any person or entity that provides environmental
or industrial products or services that are in competition with any products or services provided by the Company or
any of its subsidiaries or that the Company or any of its subsidiaries had plans to provide as of the termination of
Executive’s employment. It is agreed that the ownership of not more than five percent (5%) of the equity securities
of any company having securities listed on an exchange or regularly traded in the over-the-counter market shall not,
of itself, be deemed inconsistent with this Section 14.02.

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Section 14.03. Non-Solicitation of Customers and Prospective Customers. Without the consent in

writing of the Board, Executive will not, during Executive’s employment with the Company and (i) for a period of
18 months after a termination of employment by the Company without Cause, including for non-renewal of the
Employment Term, or by Executive for Good Reason or (ii) for a period of 12 months after a termination of
employment by Executive without Good Reason, acting alone or in conjunction with others, either directly or
indirectly, solicit, encourage or induce, or attempt to solicit, encourage or induce, any customer or prospective
customer of the Company or any of its subsidiaries to curtail or cancel its business with the Company or any of its
subsidiaries.

Section 14.04. Non-Solicitation of Employees. Without the consent in writing of the Board, Executive

will not, during Executive’s employment with the Company and (i) for a period of 18 months after a termination of
employment if the Company without Cause, including for non-renewal of the Employment Term, or by Executive for
Good Reason or (ii) for a period of 12 months after a termination of employment by Executive without Good
Reason, acting alone or in conjunction with others, either directly or indirectly, solicit, encourage or induce, or
attempt to solicit, encourage or induce, any employee of the Company or any of its subsidiaries to terminate his or
her employment.

Section 14.05. Non-Disparagement. Executive agrees that during Executive’s employment with the
Company and at all times thereafter, Executive shall not directly or indirectly through any other person, make any
statements (whether orally, in writing, on social media or otherwise) that disparage, denigrate or malign any of the
Company, its affiliates or any of their respective businesses, activities, operations or reputations or any of their
respective directors, managers, officers, employees, representatives or more than 1% stockholders. The Company
shall not permit any member of the Board to, or authorize or direct any employee of the Company to, make any
public statements (whether orally, in writing, on social media or otherwise) that disparage, denigrate or malign
Executive. For purposes of clarification, and not limitation, a statement shall be deemed to disparage, denigrate or
malign a person if such statement could be reasonably construed to adversely affect the opinion any other person
may have or form of such first person. The foregoing limitations shall not be violated by truthful statements made (i)
to any governmental authority, (ii) which such person believes, based on the advice of counsel, are in response to
legal process, required governmental testimony or filings, or administrative or arbitral proceedings (including,
without limitation, depositions in connection with such proceedings), (iii) in good faith in connection with any
employment (or similar) performance or similar review or (iv) as necessary to defend or prosecute a claim or
allegation.

15.0.    Remedies.

Section 15.01. Specific Performance; Costs of Enforcement. Executive acknowledges that the

covenants and agreements which he has made in this Employment Agreement are reasonable and are required for the
reasonable protection of the Company, its subsidiaries and their respective businesses. Executive agrees that the
breach of any covenant or agreement contained herein will result in irreparable injury to the Company and/or its
subsidiaries, and that, in addition to all other remedies provided by law or in equity with respect to the breach of any
provision of this Employment Agreement, the Company, its subsidiaries and

19

each of their respective successors and assigns will be entitled to enforce the specific performance by Executive of
his obligations hereunder and to enjoin him from engaging in any activity in violation hereof and that no claim by
Executive against the Company, any of its subsidiaries or any of their respective successors or assigns will constitute
a defense or bar to the specific enforcement of such obligations. Executive agrees that the Company, its subsidiaries
and each of their respective successors and assigns shall be entitled to recover all costs of enforcing any provision of
this Employment Agreement, including, without limitation, reasonable attorneys’ fees and costs of litigation. In the
event of a breach by Executive of any covenant or agreement contained in Section 14.0 (other than Section 14.05),
the running of the restrictive covenant periods (but not of Executive’s obligations thereunder) shall be tolled during
the period of the continuance of any actual breach or violation.

Section 15.02. Additional Remedies for Breach of Restrictive Covenants. The provisions of Section

12.0, Section 13.0, and Section 14.0 (collectively, the “Restrictive Covenants”) are separate and distinct
commitments independent of each of the other Sections. Accordingly, notwithstanding any other provision of this
Employment Agreement, Executive agrees that damages in the event of a breach or a threatened breach by Executive
of Section 12.0, Section 13.0 and/or Section 14.0 would be difficult if not impossible to ascertain and an inadequate
remedy, and it is therefore agreed that the Company, in addition to and without limiting any other remedy or right it
may have, shall have the right to an immediate injunction or other equitable relief enjoining any such threatened or
actual breach, without any requirement to post bond or provide similar security or to prove actual damages. The
existence of this right shall not preclude the Company from pursuing any other rights and remedies at law or in
equity that the Company may have, including recovery of damages for any breach of such Sections.

Section 15.03. Right to Cancel Payments.

(a)        In addition to the remedies set forth above in Sections 15.01 and 15.02, the Company may, at

the sole discretion of the Board, cancel, rescind or reduce the Severance Payment and the other payments and
benefits under Sections 4.02 and 4.04 (other than the Accrued Obligations), whether vested or not, at any time, if
Executive is not in compliance with all of the provisions of Section 12.0, Section 13.0 and Section 14.0.

(b)        As a condition to the receipt of any payment or benefit under Sections 4.02 and 4.04 (other
than the Accrued Obligations), Executive shall certify to the Company that he is in compliance with the provisions
set forth above.

(c)        In the event that the Company has rescinded any payments or benefits under Sections 4.02 and

4.04 pursuant to Section 15.03(a) at the time of Executive’s alleged breach and the arbitrator determines that
Executive has failed to comply with the provisions set forth in Section 12.0, Section 13.0 and/or Section 14.0, as
finally determined by binding arbitration pursuant to Section 16.0, Executive shall pay to the Company, within 12
months of the Company’s rescission of one or more such payments or benefits, the amount of any such payment(s) or
benefit(s) received as a result of the rescinded payment(s) or benefit(s), without interest, in such further manner and
on such further terms and conditions as may be required by the Company; and the Company shall be entitled to set-
off against the amount of such payment

20

or benefit any amount owed to Executive by the Company or any of its subsidiaries (if permitted by Section 409A),
other than wages.

(d)        Executive acknowledges that the foregoing provisions are fair, equitable and reasonable for

the protection of the Company’s interests in a stable workforce and the time and expense the Company has incurred
to develop its business and its customer and vendor relationships.

(e)        Notwithstanding the foregoing or anything contained herein to the contrary, this Section 15.03
shall not apply to any payments or benefits owed to Executive in the event of a termination of employment described
in Section 5.0.

16.0.    Dispute Resolution; WAIVER OF JURY TRIAL.

Except for claims to enforce or otherwise relating to the Restrictive Covenants, including any claim for

injunctive, declaratory or other equitable relief, which remedies may be sought in any court of competent
jurisdiction:

Section 16.01. Initial Negotiations. The Company and Executive agree to resolve all disputes arising

out of their employment relationship by the following alternative dispute resolution process: (a) the Company and
Executive agree to seek a fair and prompt negotiated resolution; but if this is not possible, (b) all disputes shall be
resolved by binding arbitration; provided, however, that during this process, at the request of either Party, made not
later than 60 days after the initial arbitration demand, the Parties agree to attempt to resolve any dispute by non-
binding, third-party intervention, including either mediation or evaluation or both but without delaying the arbitration
hearing date. BY ENTERING INTO THIS EMPLOYMENT AGREEMENT, BOTH PARTIES GIVE UP
THEIR RIGHT TO HAVE THE DISPUTE DECIDED IN COURT BY A JUDGE OR JURY.

Section 16.02. Mandatory Arbitration. Any controversy or claim arising out of or connected with

Executive’s employment or service with the Company or any of its affiliates or the termination thereof, including but
not limited to claims for compensation or severance and claims of wrongful termination, age, sex or other
discrimination or civil rights shall be decided by arbitration. In the event the Parties cannot agree on an arbitrator,
then the arbitrator shall be selected by the administrator of the American Arbitration Association (“AAA”) office in
Salt Lake City, Utah. The arbitrator shall be an attorney with at least 15 years’ experience in employment law in
Idaho. Boise, Idaho shall be the site of the arbitration. All statutes of limitation, which would otherwise be
applicable, shall apply to any arbitration proceeding hereunder. Any issue about whether a controversy or claim is
covered by this Employment Agreement shall be determined by the arbitrator.

Section 16.03. Arbitration Rules.

(a)        The arbitration shall be conducted in accordance with this Employment Agreement, using as
appropriate the AAA Employment Arbitration Rules and Mediation Procedures then-in-effect. The arbitrator shall
not be bound by the rules of evidence or of civil

21

procedure, but rather may consider such writings and oral presentations as reasonable business people would use in
the conduct of their day-to-day affairs, and may require both Parties to submit some or all of their respective cases by
written declaration or such other manner of presentation as the arbitrator may determine to be appropriate. The
Parties agree to limit live testimony and cross-examination to the extent necessary to ensure a fair hearing on
material issues.

(b)        The arbitrator shall take such steps as may be necessary to hold a private hearing within 120

days after the initial request for arbitration; and the arbitrator’s written decision shall be made not later than 14
calendar days after the hearing. The Parties agree that they have included these time limits in order to expedite the
proceeding, but they are not jurisdictional, and the arbitrator may for good cause allow reasonable extensions or
delays, which shall not affect the validity of the award. Both written discovery and depositions shall be allowed. The
extent of such discovery will be determined by the Parties and any disagreements concerning the scope and extent of
discovery shall be resolved by the arbitrator. The written decision shall contain a brief statement of the claim(s)
determined and the award made on each claim. In making the decision and award, the arbitrator shall apply
applicable substantive law. The arbitrator may award injunctive relief or any other remedy available from a judge,
including consolidation of this arbitration with any other involving common issues of law or fact which may promote
judicial economy, and shall award attorneys’ fees and costs to the prevailing Party in accordance with Section 17.0,
but shall not have the power to award punitive or exemplary damages except where expressly authorized by statute.
The Parties specifically state that the agreement to limit damages was agreed to by the Parties after negotiations.

17.0.    Attorneys’ Fees.

Section 17.01. Prevailing Party Entitled to Attorneys’ Fees. In any action at law or in equity, or in

arbitration, to enforce any of the provisions or rights under this Employment Agreement, the prevailing Party to such
litigation, as determined by the arbitrator in accordance with the dispute resolution provisions set forth above, shall
be entitled to recover from the unsuccessful Party all costs, expenses and reasonable attorneys’ fees incurred therein
by such prevailing Party (including, without limitation, such costs, expenses and fees on appeal), excluding,
however, any time spent by Company employees, including in-house legal counsel, and if such prevailing Party shall
recover judgment in any such action or proceeding, such costs, expenses and attorneys’ fees shall be included as part
of such judgment; provided that nothing herein shall limit Executive’s right to recover Executive’s full attorney’s
fees and costs in accordance with any statute authorizing an award of such fees and costs.

Section 17.02. Limitation on Fees. Notwithstanding the foregoing provision, in no event shall the

prevailing Party be entitled to recover an amount from the unsuccessful Party for costs, expenses and attorneys’ fees
that exceeds the unsuccessful Party’s costs, expenses and attorneys’ fees in connection with the action or proceeding.

22

18.0.    Miscellaneous Provisions.

Section 18.01. Prior Employment Agreements. Executive represents and warrants that Executive’s

performance of all the terms of this Employment Agreement and as an executive of the Company does not, and will
not, breach any employment agreement, arrangement or understanding or any agreement, arrangement or
understanding to keep in confidence proprietary information acquired by Executive in confidence or in trust prior to
Executive’s employment by the Company. Executive has not entered into, and shall not enter into, any agreement,
arrangement or understanding, either written or oral, which is in conflict with this Employment Agreement or which
would be violated by Executive entering into, or carrying out his obligations under, this Employment Agreement.
This Employment Agreement supersedes any former oral agreement and any former written agreement heretofore
executed relating generally to the employment of Executive with the Company, including without limitation, the
Prior Agreement.

Section 18.02. Cooperation. During and after Executive’s employment, Executive agrees to cooperate

with the Company or any of its subsidiaries in any internal investigation, any administrative, regulatory, or judicial
proceeding or any dispute with a third party concerning issues about which Executive has knowledge. Executive’s
cooperation may include, without limitation, being available to the Company or any of its subsidiaries upon
reasonable notice for interviews and factual investigations, appearing at the Company’s or any of its subsidiaries’
request to give testimony without requiring service of a subpoena or other legal process, volunteering to the
Company or any of its subsidiaries pertinent information, and turning over to the Company or any of its subsidiaries
all relevant documents which are or may come into Executive’s possession. The Company shall take into account
Executive’s other obligations in the case of any cooperation requested after the Termination Date. The Company
shall promptly reimburse Executive for the reasonable expenses and costs incurred by him in connection with such
cooperation to the extent approved in advance in writing by the Company, and, if any such cooperation is provided
after the Termination Date at a time when Executive is not receiving any severance payments under this Employment
Agreement, shall compensate Executive for Executive’s time in providing such cooperation at Executive’s hourly
Base Salary rate (based on an eight (8) hour work day) as in effect on the Termination Date (provided that no such
compensation shall be paid with respect to Executive’s testimony as a witness). For the avoidance of doubt, the
immediately preceding sentence shall not require the Company to reimburse Executive for any attorneys’ fees or
related costs Executive may incur absent advance written approval by the Company.

Section 18.03. Assignment; Binding Effect. This Employment Agreement may be assigned in whole or
in part by the Company or its successors, but may not be assigned by Executive in whole or in part. Notwithstanding
the foregoing, this Employment Agreement shall inure to the benefit of and be enforceable by Executive’s personal
representatives, executors, administrators, successors, heirs, distributees, devisees and legatees. If Executive should
die while any amounts under this Employment Agreement are owed to him based on events occurring on or prior to
such death, all such amounts, unless otherwise provided herein, shall be paid in accordance with the terms of this
Employment Agreement to Executive’s estate.

23

Section 18.04. Headings. Headings used in this Employment Agreement are for convenience only and

shall not be used to interpret or construe its provisions.

Section 18.05. Waiver. No provision of this Employment Agreement may be waived or discharged
unless such waiver or discharge is agreed to in writing and signed by the Company and Executive. No waiver by
either Party hereto at any time of any breach by the other Party hereto of, or compliance with, any condition or
provision of this Employment Agreement to be performed by such other Party shall be deemed a waiver of similar or
dissimilar provisions or conditions at the same or at any prior or subsequent time.

Section 18.06. Amendments. No amendments or variations of the terms and conditions of this

Employment Agreement shall be valid unless the same is in writing and signed by the Parties hereto.

Section 18.07. Severability. The invalidity or unenforceability of any provision of this Employment
Agreement, whether in whole or in part, shall not in any way affect the validity and/or enforceability of any other
provision contained herein. Any invalid or unenforceable provision shall be deemed severable to the extent of any
such invalidity or unenforceability. It is expressly understood and agreed that while the Company and Executive
consider the restrictions contained in this Employment Agreement reasonable for the purpose of preserving for the
Company the goodwill, other proprietary rights and intangible business value of the Company, if a final judicial
determination is made by a court having jurisdiction that the time or territory or any other restriction contained in this
Employment Agreement is an unreasonable or otherwise unenforceable restriction against Executive, the provisions
of such clause shall not be rendered void but shall be deemed amended to apply as to maximum time and territory
and to such other extent as such court may judicially determine or indicate to be reasonable.

Section 18.08. Governing Law. This Employment Agreement shall be construed and enforced

pursuant to the laws of the State of Idaho, applied without reference to principles of conflicts of law.

Section 18.09. Executive Officer Status. Executive acknowledges that he may be deemed to be an

“executive officer” of the Company for purposes of the Securities Act of 1933, as amended (the “1933 Act”), and the
1934 Act and, if so, he shall comply in all respects with all the rules and regulations under the 1933 Act and the 1934
Act applicable to him in a timely and non-delinquent manner. In order to assist the Company in complying with its
obligations under the 1933 Act and 1934 Act, Executive shall provide to the Company such information about
Executive as the Company shall reasonably request including, but not limited to, information relating to personal
history and stockholdings. Executive shall report to the Secretary of the Company or other designated officer of the
Company all changes in beneficial ownership of any shares of the Company’s Common Stock deemed to be
beneficially owned by Executive and/or any members of Executive’s immediate family. Executive further agrees to
comply with all requirements placed on him by the Sarbanes-Oxley Act of 2002, Public Law 107-204.

Section 18.10. Tax Withholding. To the extent required by law, the Company shall deduct or withhold

from any payments under this Employment Agreement all applicable federal,

24

state and local income taxes, Social Security, Medicare, unemployment tax and other amounts that the Company
determines in good faith are required by law to be withheld.

Section 18.11. Counterparts. This Employment Agreement may be executed in one or more

counterparts, each of which shall be deemed to be an original, but all of which together shall constitute but one
document.

Section 18.12. Retention of Counsel. Executive acknowledges that he has had the opportunity to

review this Employment Agreement and the transactions contemplated hereby with his own legal counsel.

[The remainder of this page intentionally left blank]

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IN WITNESS WHEREOF, this Employment Agreement has been duly executed by the Company and

Executive as of the date first above written.

EXECUTIVE:

/s/ Eric L. Gerratt
ERIC L. GERRATT

COMPANY:

US ECOLOGY, INC.

/s/ Jeffrey R. Feeler

By:
Name: Jeffrey R. Feeler
Title: PRESIDENT AND CHIEF EXECUTIVE

OFFICER

Exhibit 10.15

AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT

This AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT (this “Employment

Agreement”) is made and entered into effective as of the 22nd day of December, 2020 (the “Effective Date”), by and
between US ECOLOGY, INC., a Delaware corporation (the “Company”), and STEVEN D. WELLING
(“Executive”). The Company and Executive are sometimes collectively referred to herein as the “Parties,” and
individually, as a “Party.”

WHEREAS, immediately prior to the Effective Date, Executive rendered valuable services to the Company

in the capacity of Executive Vice President of Sales and Marketing, pursuant to an Executive Employment
Agreement, dated February 25, 2016 (the “Prior Agreement”); and

WHEREAS, the Parties desire to amend and restate the Prior Agreement in its entirety as set forth herein and

to continue Executive’s employment with the Company as Executive Vice President of Sales and Marketing on the
terms and conditions hereinafter set forth.

NOW, THEREFORE, in consideration of the premises, the mutual promises, covenants and conditions
herein contained and for other good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the Parties hereto, intending to be legally bound hereby, agree as follows:

1.0.      Employment.

Section 1.01.   Employment. The Company hereby employs Executive, and Executive hereby accepts

employment with the Company, all upon the terms and subject to the conditions set forth in this Employment
Agreement, effective as of the Effective Date first set forth above.

Section 1.02.   Term of Employment. The term of employment of Executive by the Company pursuant
to this Employment Agreement shall be for the period commencing on the Effective Date and ending December 31,
2021 (the “Employment Term”), or such earlier date that Executive’s employment is terminated in accordance with
the provisions of this Employment Agreement; provided, however, that the Employment Term shall automatically
renew for additional one year periods if neither the Company nor Executive has notified the other in writing of its or
his intention not to renew this Employment Agreement on or before 60 days prior to the expiration of the
Employment Term (including any renewal(s) thereof).

Section 1.03.   Capacity and Duties. During the Employment Term, Executive is and shall be

employed in the capacity of Executive Vice President of Sales and Marketing of the Company and its subsidiaries,
and shall have such other duties, responsibilities and authorities as may be assigned to him from time to time by the
President and Chief Executive Officer (“CEO”) and the Board of Directors of the Company (the “Board”), which are
not materially inconsistent with Executive’s positions with the Company. Except as otherwise herein provided,
Executive shall devote his entire business time, best efforts and attention to promote and advance the business of the
Company and its subsidiaries and to perform diligently and faithfully all the

duties, responsibilities and obligations of Executive to be performed by him under this Employment Agreement.
Upon termination of Executive’s employment for any reason, unless otherwise requested by the Board, Executive
will be deemed to have resigned from the Board (and all other positions held at the Company and its affiliates)
voluntarily, without any further action by Executive, as of the end of Executive’s employment, and Executive, at the
Board’s request, will execute any documents necessary to reflect his resignation.

Section 1.04.   Place of Employment. Executive’s principal place of work shall be his home office,

currently located in El Dorado Hills, California.

Section 1.05.   No Other Employment. During the Employment Term, Executive shall not be

employed in any other business activity, whether or not such activity is pursued for gain, profit or other pecuniary
advantage; provided, however, that this restriction shall not be construed as preventing Executive from (i)
participating in charitable, civic, educational, professional, community or industry affairs; (ii) sitting on one outside
board of directors for a public or private company that does not compete with the Company, with the prior
concurrence of the Board that the required time commitment with respect to such position is acceptable; and (iii)
investing his personal assets in a business which does not compete with the Company or its subsidiaries or with any
other company or entity affiliated with the Company, where the form or manner of such investment will not require
services on the part of Executive in the operation of the affairs of the business in which such investment is made and
in which his participation is solely that of a passive investor or advisor, so long as the activities in clauses (i), (ii) and
(iii), above, do not materially interfere with the performance of Executive’s duties hereunder or create a potential
business conflict or the appearance thereof.

Section 1.06.   Adherence to Standards. Executive shall comply with the written policies, standards,

rules and regulations of the Company from time to time established for all executive officers of the Company
consistent with Executive’s position and level of authority, including, without limitation, policies relating to stock
ownership guidelines, clawback of compensation, hedging and pledging of securities and insider trading.

Section 1.07.   Review of Performance. The CEO shall periodically review and evaluate with

Executive his performance under this Employment Agreement.

2.0.      Compensation.

During the Employment Term, subject to all the terms and conditions of this Employment Agreement and as
compensation for all services to be rendered by Executive hereunder, the Company shall pay to or provide Executive
with the following:

Section 2.01.   Base Salary. During the Employment Term, the Company shall pay to Executive an
annual base salary (“Base Salary”) in an amount not less than Four Hundred Twenty-Five Thousand and No/100
Dollars ($425,000.00). Such Base Salary shall be payable in accordance with the regular payroll practices and
procedures of the Company.

2

Section 2.02.   Incentive Pay. During the Employment Term, Executive shall be eligible to participate
in any cash incentive or bonus plans of the Company which are in effect for executives from time to time, including
the annual cash incentive payment opportunity granted to Executive under the Company’s Management Incentive
Plan (“MIP,” and together with any other cash incentive or bonus plans of the Company in which Executive
participates, the “Cash Incentive Plans”), subject to the terms and conditions thereof, at a minimum 75% of Base
Salary (“Target Bonus”) at a 100% of MIP target basis, with such MIP target to be set annually by the Board.
Anything to the contrary in this Employment Agreement notwithstanding, the Company reserves the right to modify
or terminate any or all of its Cash Incentive Plans at any time. In the event of any inconsistency between the terms of
this Employment Agreement and the terms of any Cash Incentive Plan, the Cash Incentive Plan shall govern and
control; provided, however, that any amount owed to Executive under a Cash Incentive Plan in accordance with the
terms thereof shall be paid to Executive no later than March 15 of the calendar year immediately following the
calendar year in which the applicable performance period ended.

Section 2.03.   Paid Time Off and Other Benefits. During the Employment Term, Executive shall be

entitled to Paid Time Off (“PTO”) consistent with the Company’s policy for senior executives (as in effect from time
to time), and shall have the right, on the same basis as other members of senior management of the Company, to
participate in any and all employee benefit plans and programs of the Company, including medical plans and other
benefit plans and programs as shall be, from time to time, in effect for executive employees and senior management
personnel of the Company. Such participation shall be subject to the terms of the applicable plan documents,
generally applicable Company policies and the discretion of the Board or any administrative or other committee
provided for in, or contemplated by, each such plan or program. Anything to the contrary in this Employment
Agreement notwithstanding, the Company reserves the right to modify or terminate such benefit plans and programs
at any time, including, without limitation, any modification of the Company’s PTO policy.

Section 2.04.   Expenses. The Company shall reimburse Executive for all reasonable, ordinary and
necessary business expenses including, but not limited to, automobile and other business travel and customer and
business entertainment expenses incurred by him during the Employment Term in connection with his employment
in accordance with the Company’s expense reimbursement policy; provided, however, Executive shall render to the
Company a complete and accurate accounting of all such business expenses in accordance with the substantiation
requirements of the Internal Revenue Code of 1986, as amended (the “Code”). Executive’s right to reimbursement
hereunder may not be liquidated or exchanged for any other benefit, the amount of expenses eligible for
reimbursement hereunder in a calendar year shall not affect the amount of expenses eligible for reimbursement
hereunder in any other calendar year, and Executive shall be reimbursed for eligible expenses no later than the close
of the calendar year immediately following the calendar year in which Executive incurs the applicable expense.

3

3.0.      Termination of Employment.

Section 3.01.   Termination of Employment. Executive’s employment and the Employment Term may
be terminated prior to expiration of the Employment Term as follows (with the date of termination being referred to
hereinafter as the “Termination Date”):

(a)        By either Party by delivering 60 days’ prior written notice of non-renewal as set forth in

Section 1.02 above;

(b)        Upon no less than 30 days’ written notice from the Company to Executive at any time without

Cause (as hereinafter defined) and other than due to Executive’s death or Disability, subject to the provisions of
Section 4.02 below;

(c)        By the Company for Cause (as hereinafter defined) immediately upon written notice stating

the basis for such termination;

(d)        Immediately upon the death of Executive;

(e)        Due to the Disability (as hereinafter defined) of Executive;

(f)        By Executive due to Retirement (as hereinafter defined) upon 90 days’ prior written notice to

the Company stating that Executive does not intend to engage in full-time employment following such termination of
employment;

(g)        By Executive at any time with or without Good Reason (as hereinafter defined), other than

due to Retirement, upon 30 days’ written notice from Executive to the Company (or such shorter period to which the
Company may agree); or

(h)        Upon the mutual agreement of the Company and Executive.

Section 3.02.   Certain Definitions. For purposes of this Employment Agreement, the following terms

have the meanings set forth below:

(a)        “Cause” shall mean, by reason of a determination by two-thirds (2/3) of the members of the
Board (excluding, for all such purposes, Executive, if Executive is a member of the Board) voting, that Executive:

(i)         Has engaged in willful neglect (other than neglect resulting from his incapacity due to
physical or mental illness) of Executive’s duties or willful misconduct in the performance of his duties for the
Company under this Employment Agreement, or has willfully violated any material written policy of the
Company;

(ii)       Has engaged in willful or grossly negligent conduct the consequences of which are

materially adverse to the Company, monetarily or otherwise;

4

(iii)      Has failed to follow the lawful instructions of the CEO or the Board that are consistent

with his position as Executive Vice President of Sales and Marketing;

(iv)       Has materially breached the terms of this Employment Agreement, and such breach

persisted after notice thereof from the Company and a reasonable opportunity to cure; or

(v)        Has been convicted of (or has plead guilty or no contest to) any felony (other than a

traffic violation) or any misdemeanor involving moral turpitude.

(b)        “Disability” shall mean that, as a result of Executive’s incapacity due to physical or mental

illness, Executive is considered disabled under the Company’s Long-Term Disability Plan or, in the absence of such
plan, Executive is unable (without reasonable accommodation), as determined by the Board in good faith, to perform
Executive’s essential duties, responsibilities and functions under this Employment Agreement for a period of 180
days during any 12 consecutive months.

(c)        “Good Reason” shall mean the occurrence of any of the following without Executive’s prior

written consent during the Employment Term:

(i)         Any material diminution or adverse change in Executive’s title, authority,

responsibilities or duties under this Employment Agreement which are materially inconsistent with his title,
authority, responsibilities or duties set forth in this Employment Agreement, or any removal of Executive
from, or failure to appoint, elect, reappoint or reelect Executive to, any of his positions, except in connection
with the termination of his employment with or without Cause, or as a result of his death or Disability;

(ii)       The exclusion of Executive from any incentive, bonus or other similar plan in which

Executive participated at the time that this Employment Agreement is executed, unless an equitable
arrangement (embodied in an ongoing substitute or alternative plan) has been made with respect to the failure
to continue such plan, or the failure by the Company to continue Executive’s participation therein, or any
action by the Company which would directly or indirectly materially reduce his participation therein or
reward opportunities thereunder; provided, however, that Executive continues to meet all eligibility
requirements thereof. Notwithstanding the foregoing, this provision shall not apply to the exclusion of
Executive from any incentive, bonus or other similar plan in which Executive participated at the time that this
Employment Agreement is executed to the extent that such termination is required by law, or applies to all of
the Company’s executive officers and/or employees generally.

(iii)      The failure by the Company to include or continue Executive’s participation in any
material employee benefit plan (including any medical, hospitalization, life insurance or disability benefit
plan in which Executive participates or in which other Company executives participate), or any material
fringe benefit or

5

prerequisite enjoyed by him unless an equitable arrangement (embodied in an ongoing substitute or
alternative plan, if applicable) has been made with respect to the failure to include Executive in such plan, or
the failure by the Company to continue Executive’s participation therein, or any action by the Company
which would directly or indirectly materially reduce his participation therein or reward opportunities
thereunder, or the failure by the Company to provide him with the benefits to which he is entitled under this
Employment Agreement; provided, however, that Executive continues to meet all eligibility requirements
thereof. Notwithstanding the foregoing, this provision shall not apply to the exclusion of Executive from any
employee benefit plan in which Executive participated at the time that this Employment Agreement is
executed to the extent that such exclusion is required by law, or applies to all of the Company’s executive
officers and/or employees generally;

(iv)       Any material breach by the Company of any provision of this Employment

Agreement; or

(v)        The relocation of the main corporate office of the Company beyond a 50 mile radius

from Boise, Idaho or beyond a fifty (50) mile radius from Executive’s primary place of employment if not in
the corporate office, in each case which materially increases Executive’s commute.

Notwithstanding any other provision of this Employment Agreement to the contrary, Executive shall be
deemed not to have terminated his employment for Good Reason unless (i) Executive notifies the Board in writing of
the condition that Executive believes constitutes Good Reason within 90 days after the initial existence thereof
(which notice specifically identifies such condition and the details regarding its existence), (ii) the Company fails to
remedy such condition within 30 days after the date on which the Board receives such notice (the “Remedial
Period”), and (iii) Executive terminates employment with the Company (and its subsidiaries and affiliates) within 60
days after the end of the Remedial Period. The failure by Executive to include in the notice any fact or circumstance
that contributes to a showing of Good Reason shall not waive any right of Executive hereunder or preclude Executive
from asserting such fact or circumstance in enforcing Executive’s rights hereunder.

(d)        “Retirement” shall mean Executive’s termination of employment with the Company and its

subsidiaries for any reason (other than for Cause, or when grounds for Cause exist, or due to Executive’s death) after
attaining age [52] and having been employed by the Company or its subsidiaries for not less than 10 consecutive
years as of immediately prior to such termination of employment.

4.0.      Payments and Benefits Upon Termination of Employment.

Section 4.01.   Termination by the Company For Cause or by Executive Without Good Reason. If
Executive’s employment and the Employment Term are terminated by the Company for Cause or by Executive
without Good Reason (but not due to Retirement), the Company shall pay Executive the Accrued Obligations (as
hereinafter defined) (other than, however, any amounts due under any Cash Incentive Plan which shall be forfeited
pursuant to

6

the terms of such plan), in a single, lump-sum payment in accordance with the regular payroll practices and
procedures of the Company but in no event longer than 45 days following such termination (or on such earlier date
required by applicable law).

Section 4.02.   Termination by the Company Without Cause or by Executive For Good Reason.

Subject to Section 5.0 below, if Executive’s employment and the Employment Term are terminated by the Company
without Cause or if Executive terminates his employment and the Employment Term for Good Reason, the Company
shall pay Executive the Accrued Obligations in a single, lump-sum payment in accordance with the regular payroll
practices and procedures of the Company but in no event longer than 45 days following such termination (or on such
earlier date required by applicable law) or, in the case of a Cash Incentive Plan payment, according to the terms of
such plan but no later than March 15 of the calendar year immediately following the calendar year in which the
applicable performance period ended. In addition, subject to Sections 5.0, 6.0 and 7.0, in the event of such a
termination, Executive shall be entitled to receive the following:

(i)         an amount equal to the sum of two year’s Base Salary and two times Target Bonus

(“Severance Payment”), which shall be payable during the two year period immediately following the
Termination Date as provided below;

(ii)       continued vesting of outstanding stock options and stock appreciation rights for a

period of two years following the Termination Date, with any stock option and stock appreciation right held
by Executive immediately prior to such termination that is, or becomes, vested to remain exercisable until the
earlier of the second anniversary of the Termination Date and the original expiration date of such stock option
or stock appreciation right (as applicable);

(iii)      immediate vesting of any restricted stock grants that would have vested during the two-

year period immediately following the Termination Date;

(iv)       continued vesting of restricted stock unit grants for a period of two years following the

Termination Date in the same manner as if no such termination had occurred;

(v)        continued vesting of performance stock and performance stock units in the same

manner as if no termination of employment had occurred, with payment calculated based on actual
performance but with vesting to be pro-rated based on the number of days from the start of the performance
period through the second anniversary of the Termination Date in relation to the total number of days in the
performance period (provided that such pro-ration shall not result in a pro-ration factor greater than 1);

(vi)       reimbursement of Executive’s and his eligible dependents’ insurance premiums

pursuant to the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended (“COBRA”) under the
Company’s medical, dental and vision plans if Executive and Executive’s eligible dependents are eligible for,
and timely elect, COBRA continuation coverage, with such reimbursements to be provided for a period of the
lesser

7

of 18 months immediately following the Termination Date or the date Executive or such dependent receives
similar or comparable coverage from a new employer, a spouse or the employer of a spouse; provided,
however, that the Company may unilaterally amend this clause (v) or eliminate the benefit provided
hereunder to the extent it deems necessary to avoid the imposition of excise taxes, penalties or similar charges
on the Company or any of its subsidiaries or affiliates, including, without limitation, under Code Section
4980D, or to the extent that this provision violates applicable law or non-discrimination rules (Executive
understands that such COBRA reimbursement may be treated as taxable, in which case, Executive shall be
grossed-up for such taxes in accordance with Section 409A);

(vii)     6 monthly payments each in an amount equal to the greater of (x) two (2) times the

monthly COBRA insurance premiums as of the Termination Date under the Company’s medical, dental and
vision plans and (y) $5,000, in either case as compensation for Executive’s loss of participation in certain of
the Company’s employee benefit plans, which shall commence on the first payroll date following the 18-
month anniversary of the Termination Date; and

(viii)    24 monthly cash payments each in an amount equal to two (2) times the monthly 

premiums as of the Termination Date for the life insurance and long-term disability insurance coverage under 
the Company’s life insurance and long-term disability plans covering Executive as of immediately prior to the 
Termination Date (the “L&D Payments”), which shall be payable during the two year period immediately
following the Termination Date as provided below.

All payments and benefits under this Section 4.02 (other than the Accrued Obligations) shall be conditional on
Executive’s timely execution and non-revocation of the Release (as defined in Section 6.0) and Executive’s
continued compliance with Section 9.0, Section 12.0, Section 13.0, and Section 14.0. Payment of the Severance
Payment and the L&D Payments shall be made in substantially equal installments in accordance with the regular
payroll practices and procedures of the Company commencing on the first payroll date occurring after Executive’s
Release becomes effective (but not later than sixty (60) days after the Termination Date); provided, however, that the
first such payment shall include any installments that would have been made on previous payroll dates but for the
requirement that Executive execute a Release. For the avoidance of doubt, a termination of employment pursuant to
Section 3.01(a) by notice of non-renewal by the Company for any reason other than Cause, shall be deemed a
termination of employment by the Company without Cause for purposes of this Section 4.02 and Section 5, as
applicable.

Section 4.03.   Termination Due to Death. If Executive’s employment and the Employment Term are 

terminated due to Executive’s death, the Company shall pay the estate of Executive the Accrued Obligations in a 
single, lump-sum payment within 45 days following such termination (or on such earlier date required by applicable 
law) or, in the case of a Cash Incentive Plan payment, according to the terms of such plan but no later than March 15 
of the calendar year immediately following the calendar year in which the applicable performance period ended. In 
addition, in the event of such a termination of employment: (i) all unvested

8

stock options, stock appreciation rights, restricted stock, restricted stock units, performance stock and performance
stock units will immediately vest (with performance being deemed achieved at target), (ii) all restricted stock units
and performance stock units that become vested under clause (i) shall be settled within 30 days after the Termination
Date and (iii) all stock options and stock appreciation rights held by Executive as of immediately prior to such
termination shall remain exercisable until their normal expiration date.

Section 4.04.   Termination Due to Disability. If Executive’s employment and the Employment Term

are terminated due to his Disability, the Company shall pay Executive the Accrued Obligations in a single, lump-sum
payment in accordance with the regular payroll practices and procedures of the Company but in no event longer than
45 days following such termination (or on such earlier date required by applicable law) or, in the case of a Cash
Incentive Plan payment, according to the terms of such plan but no later than March 15 of the calendar year
immediately following the calendar year in which the applicable performance period ended. In addition, in the event
of such a termination of employment: (i) all unvested stock options, stock appreciation rights, restricted stock,
performance stock and performance stock units (but only performance stock units that are not subject to Section
409A (as hereinafter defined)) will immediately vest (with performance being deemed achieved at target), (ii) all
restricted stock units will continue to vest for a period of two years following the Termination Date in the same
manner as if no such termination had occurred (provided that if such termination occurs within 24 months after a
Change of Control, any restricted stock units granted after the Effective Date will vest in full upon such termination
and shall be settled within 30 days thereafter), (iii) any performance stock units that are subject to Section 409A will
continue to vest in the same manner as if no such termination of employment had occurred, with performance
deemed achieved at target (provided that if such termination occurs within 24 months after a Change of Control, any
performance stock units that are subject to Section 409A granted after the Effective Date will vest in full upon such
termination with performance being deemed achieved at target and shall be settled within 30 days thereafter), (iv) all
performance stock units that become vested under clause (i) shall be settled within 30 days after the Termination
Date and (v) all stock options and stock appreciation rights held by Executive as of immediately prior to such
termination shall remain exercisable until their normal expiration date; provided, however, that such continued
vesting and exercisability of any restricted stock, restricted stock units, stock options, stock appreciation rights,
performance stock units and performance stock under this Section 4.04 shall be conditional on Executive’s timely
execution and non-revocation of the Release and Executive’s continued compliance with Section 9.0, Section 12.0,
Section 13.0, and Section 14.0 below.

Section 4.05.   Retirement. If Executive’s employment and the Employment Term are terminated by
virtue of Executive’s Retirement, the Company shall pay Executive the Accrued Obligations in a single, lump-sum
payment in accordance with the regular payroll practices and procedures of the Company but in no event longer than
45 days following such termination (or on such earlier date required by applicable law) or, in the case of a Cash
Incentive Plan payment, according to the terms of such plan but no later than March 15 of the calendar year
immediately following the calendar year in which the applicable performance period ended.

9

Section 4.06.   Definition of Accrued Obligations. “Accrued Obligations” shall mean (i) any earned

but unpaid Base Salary through the Termination Date and any PTO that is accrued but unused as of the Termination
Date (with such accrual determined in accordance with the Company’s PTO policy); (ii) any unreimbursed business
expenses incurred through the Termination Date that are otherwise reimbursable in accordance with Company
policy; (iii) all other payments, benefits or fringe benefits to which Executive may be entitled under the terms of any
applicable compensation arrangement or benefit, equity or fringe benefit plan or program or grant or this
Employment Agreement; and (iv) subject to forfeiture of any such payments under the terms of the applicable Cash
Incentive Plan (x) to the extent unpaid, any cash incentive earned under any Cash Incentive Plan for the fiscal year
prior to the year in which Executive’s termination occurs and (y) any cash incentive earned under any Cash Incentive
Plan in the year of Executive’s termination of employment based on actual results over the entire performance period
and shall be paid on a pro-rata basis based on days employed during the fiscal year of such plan if any. With respect
to clause (iv)(y) of this Section 4.06, for the sake of clarity and by way of example only, if Executive is employed for
270 days of a fiscal year and the management incentive plan in place at the time pays out 100% of target, Executive
would be owed 74% (270/365) of any incentive payments to which he would have been entitled had his employment
not been terminated. Such payments under clause (iv) hereof shall be made in accordance with the terms of any Cash
Incentive Plan in effect at the time, except that any requirement that the recipient must be an employee at the time of
payment shall be waived by the Company under this policy.

5.0.      Payment and Benefits Upon Certain Terminations in Connection with a Change of Control.

Section 5.01.   Change of Control Severance Benefits. Subject to Sections 6.0 and 7.0 below, if within

24 months after a Change of Control, Executive’s employment and the Employment Term are terminated by the
Company without Cause (but not due to death or Disability) or by Executive for Good Reason, then Executive shall
receive:

(i)        in lieu of the Severance Payment, a payment equal to two times the sum of (x) his

annual Base Salary; and (y) the greater of (a) any earned but unpaid amount due under any Cash Incentive
Plan (as determined by the terms of the Cash Incentive Plan); and (b) Executive’s Target Bonus amount
(collectively, the “Change of Control Payment”);

(ii)       the payments and benefits set forth in clauses (vi), (vii) and (viii) of Section 4.02 at the

times provided therein;

(iii)      full vesting of all unvested stock options, stock appreciation rights, restricted stock,
restricted stock units (but only to the extent such restricted stock units are granted after the Effective Date),
performance stock units (but only to the extent such performance stock units (x) are not subject to Section
409A or (y) are subject to Section 409A but are granted after the Effective Date) and performance stock (with
all stock options and stock appreciation rights to remain exercisable through their normal expiration date,
with performance with respect to any performance-based awards to be

10

deemed achieved at target and with all restricted stock units and performance stock units that become vested
under this clause (iii) to be settled within 30 days after the Termination Date), provided, however, that if
unvested stock options, stock appreciation rights, restricted stock, performance stock units (to the extent not
subject to Section 409A) and performance stock held by Executive are not continued, substituted for or
assumed by the successor company in connection with a Change of Control, such awards shall immediately
vest upon the Change of Control;

(iv)       with respect to any restricted stock units that are outstanding on the Effective Date,

continued vesting of such restricted stock units in the same manner as if no such termination of employment
had occurred; and

(v)        with respect to any performance stock units that are subject to Section 409A that are

outstanding on the Effective Date, continued vesting of such performance stock units in the same manner as if
no such termination of employment had occurred (with payment based on target performance).

The Change of Control Payment shall be paid in a single lump-sum payment on the first payroll date after the
effective date of the Release, but in any event within 60 days after the Termination Date.

In the event of a termination described in this Section 5.0, Executive also shall be entitled to receive the Accrued
Obligations (to be provided in accordance with Section 4.02).

In the event of an inconsistency between this Section 5.0 and Section 4.02, this Section 5.0 shall govern and control.

Section 5.02.   Definition of Change of Control. A “Change of Control” shall be deemed to have

occurred upon:

(i)         The consummation of a reorganization, merger, statutory share exchange or consolidation or similar

transaction involving the Company (each, a “Business Combination”), unless, following such Business
Combination, all or substantially all of the individuals and entities that were the beneficial owners of the combined
voting power of the Company’s outstanding securities immediately prior to such Business Combination beneficially
own, directly or indirectly, at least 60% of the combined voting power of the then-outstanding securities of the entity
resulting from such Business Combination; provided, however, that a public offering of the Company’s securities
shall not constitute a Business Combination;

(ii)       The sale, transfer, or other disposition of all or substantially all of the Company’s assets;

(iii)      Any transaction as a result of which any person is the “beneficial owner” (as defined in Rule 13d-3

under the Securities Exchange Act of 1934, as amended (the “1934 Act”)), directly or indirectly, of securities of the
Company representing more than 30% of the total voting power represented by the Company’s then outstanding
voting securities. For purposes of this subparagraph (iii), the term “person” shall have the same meaning as when
used in sections

11

13 and 14(d) of the 1934 Act, but shall exclude (x) a trustee or other fiduciary holding securities under an employee
benefit plan of the Company or of a subsidiary; (y) a corporation owned directly or indirectly by the stockholders of
the Company in substantially the same proportions as their ownership of the common stock of the Company; and (z)
any person or entity owning more than 30% of the total voting power represented by the Company’s then outstanding
voting securities immediately prior to such transaction; or

(iv)       A change in the composition of the Board in any 12-month period as a result of which fewer than a

majority of the directors are Incumbent Directors. “Incumbent Directors” shall mean directors who either (a) are
directors of the Company as of the start of the period or (b) are elected, or nominated for election, to the Board with
the affirmative votes (either by a specific vote or by approval of the proxy statement of the Company in which such
person is named as a nominee for election as a director without objection to such nomination) of at least a majority of
the Incumbent Directors at the time of such election or nomination (but shall not include an individual whose
election or nomination is in connection with an actual or threatened proxy contest relating to the election of directors
of the Company).

Notwithstanding the foregoing or anything contained herein to the contrary, no transaction or event shall be a
Change of Control unless it also satisfies the requirements of Treasury Regulation Section 1.409A-3(i)(5)(v), (vi) or
(vii).

6.0.      Release.

Executive’s entitlement to the payments and benefits described in Section 4.02, Section 4.04, Section 4.05
and Section 5.0, in each case, other than the Accrued Obligations, is subject to and conditioned upon Executive’s
timely execution, without subsequent revocation, of a release of claims in favor of the Company and its subsidiaries
and affiliates in form and substance satisfactory to the Company (the “Release”); provided, however, that
notwithstanding the foregoing, the Release is not intended to and will not waive Executive’s rights: (i) to
indemnification pursuant to any applicable provision of the Company’s Bylaws or Certificate of Incorporation, as
amended, pursuant to any written indemnification agreement between Executive and the Company, or pursuant to
applicable law; (ii) to vested benefits or payments specifically to be provided to Executive under this Employment
Agreement or any Company employee benefit plans or policies; or (iii) respecting any claims Executive may have
solely by virtue of Executive’s status as a stockholder of the Company. The Release also shall not impose any
restrictive covenant on Executive’s conduct post-termination that Executive had not agreed to prior to Executive’s
termination in this Agreement or otherwise or include claims that an employee cannot lawfully release through
execution of a general release of claims.

To be timely, the Release must become effective (i.e., Executive must sign it and any revocation period must
expire without Executive revoking the Release) within 60 days, or such shorter period specified in the Release, after
Executive’s date of termination of employment. If the Release does not become effective within such time period,
then Executive shall not be entitled to such payments and benefits. The Company is obligated to provide Executive
the Release within 7 calendar days after the Termination Date and Executive shall have a minimum of 21 calendar
days to review and comment on the Release.

12

Notwithstanding anything contained in this Employment Agreement to the contrary, if payment or provision

of any amounts under Section 4.02, Section 4.04, Section 4.05 and Section 5.0, in each case, on which Executive’s
execution and non-revocation of the Release is conditioned, could commence in more than one calendar year based
on when the Release could be executed (regardless of when the Release is executed), then to the extent any such
amounts are treated as nonqualified deferred compensation under Section 409A (as hereinafter defined) any such
amounts that otherwise would have been paid or provided in such first calendar year instead shall be withheld and
paid or provided on the first payroll date in such second calendar year with all remaining payments and benefits to be
made as if no such delay had occurred.

7.0.      Compliance With Section 409A.

Section 7.01.   General. The provisions of this Employment Agreement are intended to comply with

the requirements of Section 409A of the Code and any regulations and official guidance promulgated thereunder
(“Section 409A”) or an exemption or exclusion therefrom and, with respect to amounts that are subject to Section
409A, shall in all respects be interpreted in accordance with Section 409A. Any payments that qualify for the “short-
term deferral” exception or another exception under Section 409A shall be paid under the applicable exception. Each
payment of compensation under this Employment Agreement shall be treated as a separate payment of compensation
for purposes of Section 409A and a right to a series of installment payments under this Employment Agreement
(including pursuant to Section 4.02) shall be treated as a right to a series of separate and distinct payments. All 
payments to be made upon a termination of employment under this Employment Agreement that are treated as 
nonqualified deferred compensation under Section 409A may only be made upon a “separation from service” under 
Section 409A. In no event may Executive, directly or indirectly, designate the calendar year of any payment under 
this Employment Agreement. For purposes of this Employment Agreement, a termination of Executive’s 
employment as a result of Disability, by the Company without Cause or by Executive for Good Reason, in each case, 
is intended to constitute an “involuntary separation” within the meaning of, and for purposes of, Section 409A, and 
this Employment Agreement shall be interpreted accordingly.

Section 7.02.   In-Kind Benefits and Reimbursements. Notwithstanding anything to the contrary in this

Employment Agreement, all reimbursements and in-kind benefits provided hereunder shall be made or provided in
accordance with the requirements of Section 409A, including, where applicable, the requirement that (a) any
reimbursement is for expenses incurred during Executive’s lifetime (or during a shorter period of time specified
herein); (b) the amount of expenses eligible for reimbursement, or in-kind benefits provided, during a calendar year
may not affect the expenses eligible for reimbursement, or in-kind benefits to be provided, in any other calendar year,
except, if such benefits consist of the reimbursement of expenses referred to in Section 105(b) of the Code, a
maximum, if provided under the terms of the plan providing such medical benefit, may be imposed on the amount of
such reimbursements over some or all of the period in which such benefit is to be provided to Executive as described
in Treasury Regulation Section 1.409A-3(i)(1)(iv)(B); (c) the reimbursement of an eligible expense will be made no
later than the last day of the calendar year immediately following the calendar year in which the expense is incurred,
provided that reimbursement shall be made only if Executive has submitted an invoice for such expenses at least 10
days before the end of the calendar year

13

immediately following the calendar year in which such expenses were incurred; and (d) the right to reimbursement or
in-kind benefits is not subject to liquidation or exchange for another benefit.

Section 7.03.   Delay of Payments. Notwithstanding any other provision of this Employment

Agreement to the contrary, if Executive is considered a “specified employee” for purposes of Section 409A (as
determined in accordance with the methodology established by the Company as in effect on the date of termination
of employment), any payment that constitutes nonqualified deferred compensation within the meaning of Section
409A that is otherwise due to Executive hereunder during the six-month period immediately following Executive’s
separation from service (as determined in accordance with Section 409A) on account of Executive’s separation from
service shall be accumulated and paid to Executive on the first business day after the date that is six months
immediately following Executive’s separation from service (the “Delayed Payment Date”). Executive shall be
entitled to interest (at a per annum rate equal to the highest rate of interest applicable to six-month non-callable
certificates of deposit with daily compounding offered by the following institutions: Citibank, N.A., Wells Fargo
Bank, N.A. or Bank of America, on the date of such separation from service) on any cash payments so delayed from
the scheduled date of payment to the Delayed Payment Date. If Executive dies during the postponement period, the
amounts and entitlements delayed on account of Section 409A shall be paid to the personal representative of
Executive’s estate on the first to occur of the Delayed Payment Date or 30 days after the date of Executive’s death.

Section 7.04.   Cooperation. Executive and the Company agree to work together in good faith to
consider amendments to this Employment Agreement and to take such reasonable actions which are necessary,
appropriate or desirable to avoid imposition of any additional tax or income recognition prior to actual payment to
Executive under Section 409A.

Section 7.05.   No Liability. Notwithstanding anything contained in this Employment Agreement to

the contrary, neither the Company nor any of its subsidiaries or affiliates shall have any liability or obligation to
Executive or to any other person or entity in the event that this Employment Agreement, or any of the payments or
benefits provided under this Employment Agreement, does not comply with, or is not exempt from, Section 409A.

8.0.      Limitation on Payments.

Notwithstanding any other provision of this Employment Agreement or any other agreement or arrangement

between Executive and the Company or any of its affiliates, in the event that the payments and other benefits
provided for in this Employment Agreement, together with all other payments and benefits that Executive receives or
is entitled to receive from the Company or any of its subsidiaries, (i) constitute “parachute payments” within the
meaning of Section 280G of the Code and (ii) but for this Section 8.0, would be subject to the excise tax imposed by
Section 4999 of the Code, then such payments and benefits will be either:

(a)        delivered in full; or

(b)        delivered as to such lesser extent as would result in no portion of such payments and benefits

being subject to excise tax under Section 4999 of the Code,

14

whichever of the foregoing amounts, taking into account the applicable federal, state and local income taxes and the
excise tax imposed by Section 4999 of the Code, results in the receipt by Executive on an after-tax basis, of the
greatest amount of payments and benefits, notwithstanding that all or some portion of such payments and benefits
may be taxable under Section 4999 of the Code. If a reduction in payments and benefits constituting “parachute
payments” is necessary so that payments and benefits are delivered to a lesser extent under Section 8.0(b) hereof,
reduction shall occur in the following order: (i) reduction of cash severance payments (reduced from the latest
scheduled payments to the earliest scheduled payments); (ii) cancellation of any equity awards that are included
under Section 280G of the Code at full value rather than accelerated value (reduced from highest value to lowest
value under Section 280G of the Code and, if such values are the same, from latest to earliest scheduled vesting
dates); (iii) cancellation of the accelerated vesting of any equity awards included under Section 280G of the Code at
an accelerated value (and not at full value), which shall be reduced with the highest value reduced first (as such
values are determined under Treasury Regulation Section 1.280G-1, Q&A 24) (and if such values are the same, from
latest to earliest vesting dates); and (iv) reduction of any other non-cash benefits (including the value of the
accelerated payment of any cash payments), reduced in the order of highest to lowest value under Code Section 280G
(and if such values are the same, from latest to earliest payment dates); provided, in each case, that any such
reduction shall be made in a manner consistent with the requirements of Section 409A. Unless the Company and
Executive otherwise agree in writing, any determination required under this Section 8.0 will be made in writing by an
independent, nationally recognized accounting firm selected by the Company (the “Firm”), whose determination will
be conclusive and binding upon Executive and the Company for all purposes. For purposes of making the
calculations required by this Section 8.0, the Firm may make reasonable assumptions and approximations concerning
applicable taxes and may rely on reasonable, good faith interpretations concerning the application of Sections 280G
and 4999 of the Code. The Company and Executive will furnish to the Firm such information and documents as the
Firm may reasonably request in order to make a determination under this Section 8.0. The Company will bear all
costs the Firm may reasonably incur in connection with any calculations contemplated by this Section 8.0.

9.0.      Return of Property.

Executive agrees, upon the termination of his employment with the Company or upon the earlier written

request of the Company, to return to the Company all physical, computerized, electronic or other types of records,
documents, proposals, notes, lists, files and any and all other materials, including without limitation, computerized
and/or electronic information that refers, relates or otherwise pertains to the Company and/or its subsidiaries, and any
and all business dealings of said persons and entities. In addition, Executive shall return to the Company all property
and equipment that Executive has been issued during the course of his employment or which he otherwise then
possesses or has control over, including but not limited to, any computers, cellular phones, personal digital assistants,
pagers and/or similar items. Executive shall immediately deliver to the Company any such physical, computerized,
electronic or other types of records, documents, proposals, notes, lists, files, materials, property and equipment that
are in Executive’s possession or control. Executive further agrees that he will immediately forward to the Company
any business information regarding the Company and/or its subsidiaries that has been or is inadvertently directed to
Executive following his last day of employment with

15

the Company. The provisions of this Section 9.0 are in addition to any other written agreements on this subject that
Executive may have with the Company and/or its subsidiaries, and are not meant to and do not excuse any additional
obligations that Executive may have under such agreements.

10.0.    Notices.

For the purposes of this Employment Agreement, notices and all other communications provided for

hereunder shall be in writing and shall be deemed to have been duly given when personally delivered or sent by
certified mail, return receipt requested, postage prepaid, or by expedited (overnight) courier with established national
reputation, shipping prepaid or billed to sender, in either case addressed to the respective addresses last given by each
Party to the other (provided that all notices to the Company shall be directed to the attention of the CEO) or to such
other address as either Party may have furnished to the other in writing in accordance herewith. All notices and
communications shall be deemed to have been received on the date of delivery thereof, or on the second day after
deposit thereof with an expedited courier service, except that notice of change of address shall be effective only upon
receipt. Notices shall be addressed as follows:

If to the Company:

101 S. Capitol Blvd., Suite 1000
Boise, Idaho 83702

If to Executive:

As on file with the Company’s Corporate Secretary

11.0.    Life Insurance.

The Company may, at any time after the execution of this Employment Agreement, apply for and procure as

owner and for its own benefit, life insurance on Executive, in such amounts and in such form or forms as the
Company may determine. Executive shall, at the request of the Company, submit to such medical examinations,
supply such information, and execute such documents as may be required by the insurance company or companies to
whom the Company has applied for such insurance.

12.0.    Confidentiality.

Executive agrees not to disclose or reveal to any person or entity outside the Company or any of its
subsidiaries any confidential, trade secret, proprietary or other non-public information concerning the Company, any
of its subsidiaries or any of the businesses or operations of the Company or any of its subsidiaries (“Confidential
Information”), including all information relating to any Company or subsidiary product, process, equipment,
machinery, design, formula, business plan or strategy, or other activity without prior permission of the Company in
writing.

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Confidential Information shall not include any information which is in the public domain or becomes publicly
known, in either case, through no wrongful act on the part of Executive or breach of this Employment Agreement.
Executive acknowledges that the Confidential Information is vital, sensitive, confidential and proprietary to the
Company or its subsidiaries. The obligation to protect the secrecy of such information continues after employment
with Company or any of its subsidiaries may be terminated. In furtherance of this agreement, Executive
acknowledges that all Confidential Information which Executive now possesses, or shall hereafter acquire,
concerning and pertaining to the business and secrets of the Company or any of its subsidiaries and all inventions or
discoveries made or developed, or suggested by or to Executive during said term of employment relating to the
Company’s or any of its subsidiaries’ business shall, at all times and for all purposes, be regarded as acquired and
held by Executive in his fiduciary capacity and solely for the benefit of the Company or any of its subsidiaries.

Pursuant to 18 U.S.C. § 1833(b), Executive understands that he will not be held criminally or civilly liable

under any federal or state trade secret law for the disclosure of a trade secret of the Company or any of its
subsidiaries that (i) is made (A) in confidence to a federal, state, or local government official, either directly or
indirectly, or to his attorney and (B) solely for the purpose of reporting or investigating a suspected violation of law;
or (ii) is made in a complaint or other document that is filed under seal in a lawsuit or other proceeding. Executive
understands that if he files a lawsuit for retaliation by the Company or any of its subsidiaries for reporting a
suspected violation of law, he may disclose the trade secret to his attorney and use the trade secret information in the
court proceeding if he (I) files any document containing the trade secret under seal, and (II) does not disclose the
trade secret, except pursuant to court order. Nothing in this Employment Agreement, or any other agreement that
Executive has with the Company, is intended to conflict with 18 U.S.C. § 1833(b) or create liability for disclosures
of trade secrets that are expressly allowed by such section. Further, nothing in this Employment Agreement or any
other agreement that Executive has with the Company or any of its affiliates shall prohibit or restrict him from
making any voluntary disclosure of information or documents concerning possible violations of law to any
governmental agency or legislative body, or any self-regulatory organization, in each case, without advance notice to
the Company.

13.0.    Work Product Assignment.

Executive agrees that all inventions, innovations, discoveries, improvements, technical information, systems,

software developments, methods, designs, analyses, data, drawings, reports, works of authorship, service marks,
trademarks, trade names, logos and all similar or related information or developments (whether patentable or
unpatentable) which relate to the actual or anticipated business, research and development or existing or future
products or services of the Company or of any of its subsidiaries or affiliates, and which are conceived, developed or
made by Executive (whether or not during usual business hours and whether or not alone or in conjunction with any
other person) while employed by the Company, together with all patent applications, letters patent, trademark, trade
name and service mark applications or registrations, copyrights and reissues thereof that may be granted for or upon
any of the foregoing and any other intellectual property right or other proprietary rights in any of the foregoing
(collectively referred to herein as the “Work Product”), are in all instances the exclusive property of the Company,
and Executive hereby irrevocably assigns to the Company

17

all Work Product and all of his interest therein, including all rights to claim and recover damages and/or injunctive
relief for past, present, and future infringement or violation of any Work Product. Executive agrees to promptly make
full written disclosure to the Company of any and all Work Product. Executive will promptly perform all actions
reasonably requested by the Board (whether during or after his employment with the Company) to establish and
confirm the ownership of such Work Product (including, without limitation, the execution and delivery of
assignments, consents, powers of attorney and other instruments) by the Company or its subsidiaries or affiliates, as
applicable, and to provide reasonable assistance to the Company or any of its subsidiaries and affiliates in connection
with the prosecution of any applications for patents, trademarks, trade names, service marks or reissues thereof or
other intellectual property rights, or in the prosecution, maintenance, enforcement and defense of any intellectual
property rights or other proprietary rights in any Work Product. Without limiting the foregoing, Executive hereby
irrevocably designates and appoints the Company and its duly authorized officers and agents as Executive’s agent
and attorney-in-fact, to act for and on Executive’s behalf to execute and file any such application or applications or
other documents and to do all other lawfully permitted acts to further the prosecution and issuance of letters patent,
copyright or trademark registrations or any other legal protection thereon with the same legal force and effect as if
executed by Executive.

14.0.    Covenant Not to Compete, Not to Solicit and Not to Disparage.

Section 14.01. Acknowledgment of Executive. Executive acknowledges that his employment with the

Company has special, unique and extraordinary value to the Company; that the Company has a lawful interest in
protecting its investment in entrusting its Confidential Information to him; that the Company would be irreparably
damaged if Executive were to provide services to any person or entity in violation of this Employment Agreement;
that in performing such services Executive would inevitably disclose the Company’s Confidential Information to
third parties; and that the restrictions, prohibitions and other provisions of this Section 14.0 are reasonable, fair and
equitable in scope, terms, and duration to protect the legitimate business interests of the Company, and are a material
inducement to the Company to enter into this Employment Agreement.

Section 14.02. Non-Competition Covenant. Without the consent in writing of the Board, Executive

will not, during Executive’s employment with the Company and (i) for a period of 18 months after a termination of
employment by the Company without Cause, including for non-renewal of the Employment Term, or by Executive
for Good Reason or (ii) for a period of 12 months after a termination of employment by Executive without Good
Reason, acting alone or in conjunction with others, directly or indirectly engage anywhere in the United States or any
other country in which the Company conducts business (either as owner, investor, partner, stockholder, employer,
employee, consultant, advisor or director) in activities on behalf of any person or entity that provides environmental
or industrial products or services that are in competition with any products or services provided by the Company or
any of its subsidiaries or that the Company or any of its subsidiaries had plans to provide as of the termination of
Executive’s employment. It is agreed that the ownership of not more than five percent (5%) of the equity securities
of any company having securities listed on an exchange or regularly traded in the over-the-counter market shall not,
of itself, be deemed inconsistent with this Section 14.02.

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Section 14.03. Non-Solicitation of Customers and Prospective Customers. Without the consent in

writing of the Board, Executive will not, during Executive’s employment with the Company and (i) for a period of
18 months after a termination of employment by the Company without Cause, including for non-renewal of the
Employment Term, or by Executive for Good Reason or (ii) for a period of 12 months after a termination of
employment by Executive without Good Reason, acting alone or in conjunction with others, either directly or
indirectly, solicit, encourage or induce, or attempt to solicit, encourage or induce, any customer or prospective
customer of the Company or any of its subsidiaries to curtail or cancel its business with the Company or any of its
subsidiaries.

Section 14.04. Non-Solicitation of Employees. Without the consent in writing of the Board, Executive

will not, during Executive’s employment with the Company and (i) for a period of 18 months after a termination of
employment if the Company without Cause, including for non-renewal of the Employment Term, or by Executive for
Good Reason or (ii) for a period of 12 months after a termination of employment by Executive without Good
Reason, acting alone or in conjunction with others, either directly or indirectly, solicit, encourage or induce, or
attempt to solicit, encourage or induce, any employee of the Company or any of its subsidiaries to terminate his or
her employment.

Section 14.05. Non-Disparagement. Executive agrees that during Executive’s employment with the
Company and at all times thereafter, Executive shall not directly or indirectly through any other person, make any
statements (whether orally, in writing, on social media or otherwise) that disparage, denigrate or malign any of the
Company, its affiliates or any of their respective businesses, activities, operations or reputations or any of their
respective directors, managers, officers, employees, representatives or more than 1% stockholders. The Company
shall not permit any member of the Board to, or authorize or direct any employee of the Company to, make any
public statements (whether orally, in writing, on social media or otherwise) that disparage, denigrate or malign
Executive. For purposes of clarification, and not limitation, a statement shall be deemed to disparage, denigrate or
malign a person if such statement could be reasonably construed to adversely affect the opinion any other person
may have or form of such first person. The foregoing limitations shall not be violated by truthful statements made (i)
to any governmental authority, (ii) which such person believes, based on the advice of counsel, are in response to
legal process, required governmental testimony or filings, or administrative or arbitral proceedings (including,
without limitation, depositions in connection with such proceedings), (iii) in good faith in connection with any
employment (or similar) performance or similar review or (iv) as necessary to defend or prosecute a claim or
allegation.

15.0.    Remedies.

Section 15.01. Specific Performance; Costs of Enforcement. Executive acknowledges that the

covenants and agreements which he has made in this Employment Agreement are reasonable and are required for the
reasonable protection of the Company, its subsidiaries and their respective businesses. Executive agrees that the
breach of any covenant or agreement contained herein will result in irreparable injury to the Company and/or its
subsidiaries, and that, in addition to all other remedies provided by law or in equity with respect to the breach of any
provision of this Employment Agreement, the Company, its subsidiaries and

19

each of their respective successors and assigns will be entitled to enforce the specific performance by Executive of
his obligations hereunder and to enjoin him from engaging in any activity in violation hereof and that no claim by
Executive against the Company, any of its subsidiaries or any of their respective successors or assigns will constitute
a defense or bar to the specific enforcement of such obligations. Executive agrees that the Company, its subsidiaries
and each of their respective successors and assigns shall be entitled to recover all costs of enforcing any provision of
this Employment Agreement, including, without limitation, reasonable attorneys’ fees and costs of litigation. In the
event of a breach by Executive of any covenant or agreement contained in Section 14.0 (other than Section 14.05),
the running of the restrictive covenant periods (but not of Executive’s obligations thereunder) shall be tolled during
the period of the continuance of any actual breach or violation.

Section 15.02. Additional Remedies for Breach of Restrictive Covenants. The provisions of Section

12.0, Section 13.0, and Section 14.0 (collectively, the “Restrictive Covenants”) are separate and distinct
commitments independent of each of the other Sections. Accordingly, notwithstanding any other provision of this
Employment Agreement, Executive agrees that damages in the event of a breach or a threatened breach by Executive
of Section 12.0, Section 13.0 and/or Section 14.0 would be difficult if not impossible to ascertain and an inadequate
remedy, and it is therefore agreed that the Company, in addition to and without limiting any other remedy or right it
may have, shall have the right to an immediate injunction or other equitable relief enjoining any such threatened or
actual breach, without any requirement to post bond or provide similar security or to prove actual damages. The
existence of this right shall not preclude the Company from pursuing any other rights and remedies at law or in
equity that the Company may have, including recovery of damages for any breach of such Sections.

Section 15.03. Right to Cancel Payments.

(a)        In addition to the remedies set forth above in Sections 15.01 and 15.02, the Company may, at

the sole discretion of the Board, cancel, rescind or reduce the Severance Payment and the other payments and
benefits under Sections 4.02 and 4.04 (other than the Accrued Obligations), whether vested or not, at any time, if
Executive is not in compliance with all of the provisions of Section 12.0, Section 13.0 and Section 14.0.

(b)        As a condition to the receipt of any payment or benefit under Sections 4.02 and 4.04 (other
than the Accrued Obligations), Executive shall certify to the Company that he is in compliance with the provisions
set forth above.

(c)        In the event that the Company has rescinded any payments or benefits under Sections 4.02 and

4.04 pursuant to Section 15.03(a) at the time of Executive’s alleged breach and the arbitrator determines that
Executive has failed to comply with the provisions set forth in Section 12.0, Section 13.0 and/or Section 14.0, as
finally determined by binding arbitration pursuant to Section 16.0, Executive shall pay to the Company, within 12
months of the Company’s rescission of one or more such payments or benefits, the amount of any such payment(s) or
benefit(s) received as a result of the rescinded payment(s) or benefit(s), without interest, in such further manner and
on such further terms and conditions as may be required by the Company; and the Company shall be entitled to set-
off against the amount of such payment

20

or benefit any amount owed to Executive by the Company or any of its subsidiaries (if permitted by Section 409A),
other than wages.

(d)        Executive acknowledges that the foregoing provisions are fair, equitable and reasonable for

the protection of the Company’s interests in a stable workforce and the time and expense the Company has incurred
to develop its business and its customer and vendor relationships.

(e)        Notwithstanding the foregoing or anything contained herein to the contrary, this Section 15.03
shall not apply to any payments or benefits owed to Executive in the event of a termination of employment described
in Section 5.0.

16.0.    Dispute Resolution; WAIVER OF JURY TRIAL.

Except for claims to enforce or otherwise relating to the Restrictive Covenants, including any claim for

injunctive, declaratory or other equitable relief, which remedies may be sought in any court of competent
jurisdiction:

Section 16.01. Initial Negotiations. The Company and Executive agree to resolve all disputes arising

out of their employment relationship by the following alternative dispute resolution process: (a) the Company and
Executive agree to seek a fair and prompt negotiated resolution; but if this is not possible, (b) all disputes shall be
resolved by binding arbitration; provided, however, that during this process, at the request of either Party, made not
later than 60 days after the initial arbitration demand, the Parties agree to attempt to resolve any dispute by non-
binding, third-party intervention, including either mediation or evaluation or both but without delaying the arbitration
hearing date. BY ENTERING INTO THIS EMPLOYMENT AGREEMENT, BOTH PARTIES GIVE UP
THEIR RIGHT TO HAVE THE DISPUTE DECIDED IN COURT BY A JUDGE OR JURY.

Section 16.02. Mandatory Arbitration. Any controversy or claim arising out of or connected with

Executive’s employment or service with the Company or any of its affiliates or the termination thereof, including but
not limited to claims for compensation or severance and claims of wrongful termination, age, sex or other
discrimination or civil rights shall be decided by arbitration. In the event the Parties cannot agree on an arbitrator,
then the arbitrator shall be selected by the administrator of the American Arbitration Association (“AAA”) office in
Salt Lake City, Utah. The arbitrator shall be an attorney with at least 15 years’ experience in employment law in
Idaho. Boise, Idaho shall be the site of the arbitration. All statutes of limitation, which would otherwise be
applicable, shall apply to any arbitration proceeding hereunder. Any issue about whether a controversy or claim is
covered by this Employment Agreement shall be determined by the arbitrator.

Section 16.03. Arbitration Rules.

(a)        The arbitration shall be conducted in accordance with this Employment Agreement, using as
appropriate the AAA Employment Arbitration Rules and Mediation Procedures then-in-effect. The arbitrator shall
not be bound by the rules of evidence or of civil

21

procedure, but rather may consider such writings and oral presentations as reasonable business people would use in
the conduct of their day-to-day affairs, and may require both Parties to submit some or all of their respective cases by
written declaration or such other manner of presentation as the arbitrator may determine to be appropriate. The
Parties agree to limit live testimony and cross-examination to the extent necessary to ensure a fair hearing on
material issues.

(b)        The arbitrator shall take such steps as may be necessary to hold a private hearing within 120

days after the initial request for arbitration; and the arbitrator’s written decision shall be made not later than 14
calendar days after the hearing. The Parties agree that they have included these time limits in order to expedite the
proceeding, but they are not jurisdictional, and the arbitrator may for good cause allow reasonable extensions or
delays, which shall not affect the validity of the award. Both written discovery and depositions shall be allowed. The
extent of such discovery will be determined by the Parties and any disagreements concerning the scope and extent of
discovery shall be resolved by the arbitrator. The written decision shall contain a brief statement of the claim(s)
determined and the award made on each claim. In making the decision and award, the arbitrator shall apply
applicable substantive law. The arbitrator may award injunctive relief or any other remedy available from a judge,
including consolidation of this arbitration with any other involving common issues of law or fact which may promote
judicial economy, and shall award attorneys’ fees and costs to the prevailing Party in accordance with Section 17.0,
but shall not have the power to award punitive or exemplary damages except where expressly authorized by statute.
The Parties specifically state that the agreement to limit damages was agreed to by the Parties after negotiations.

17.0.    Attorneys’ Fees.

Section 17.01. Prevailing Party Entitled to Attorneys’ Fees. In any action at law or in equity, or in

arbitration, to enforce any of the provisions or rights under this Employment Agreement, the prevailing Party to such
litigation, as determined by the arbitrator in accordance with the dispute resolution provisions set forth above, shall
be entitled to recover from the unsuccessful Party all costs, expenses and reasonable attorneys’ fees incurred therein
by such prevailing Party (including, without limitation, such costs, expenses and fees on appeal), excluding,
however, any time spent by Company employees, including in-house legal counsel, and if such prevailing Party shall
recover judgment in any such action or proceeding, such costs, expenses and attorneys’ fees shall be included as part
of such judgment; provided that nothing herein shall limit Executive’s right to recover Executive’s full attorney’s
fees and costs in accordance with any statute authorizing an award of such fees and costs.

Section 17.02. Limitation on Fees. Notwithstanding the foregoing provision, in no event shall the

prevailing Party be entitled to recover an amount from the unsuccessful Party for costs, expenses and attorneys’ fees
that exceeds the unsuccessful Party’s costs, expenses and attorneys’ fees in connection with the action or proceeding.

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18.0.    Miscellaneous Provisions.

Section 18.01. Prior Employment Agreements. Executive represents and warrants that Executive’s

performance of all the terms of this Employment Agreement and as an executive of the Company does not, and will
not, breach any employment agreement, arrangement or understanding or any agreement, arrangement or
understanding to keep in confidence proprietary information acquired by Executive in confidence or in trust prior to
Executive’s employment by the Company. Executive has not entered into, and shall not enter into, any agreement,
arrangement or understanding, either written or oral, which is in conflict with this Employment Agreement or which
would be violated by Executive entering into, or carrying out his obligations under, this Employment Agreement.
This Employment Agreement supersedes any former oral agreement and any former written agreement heretofore
executed relating generally to the employment of Executive with the Company, including without limitation, the
Prior Agreement.

Section 18.02. Cooperation. During and after Executive’s employment, Executive agrees to cooperate

with the Company or any of its subsidiaries in any internal investigation, any administrative, regulatory, or judicial
proceeding or any dispute with a third party concerning issues about which Executive has knowledge. Executive’s
cooperation may include, without limitation, being available to the Company or any of its subsidiaries upon
reasonable notice for interviews and factual investigations, appearing at the Company’s or any of its subsidiaries’
request to give testimony without requiring service of a subpoena or other legal process, volunteering to the
Company or any of its subsidiaries pertinent information, and turning over to the Company or any of its subsidiaries
all relevant documents which are or may come into Executive’s possession. The Company shall take into account
Executive’s other obligations in the case of any cooperation requested after the Termination Date. The Company
shall promptly reimburse Executive for the reasonable expenses and costs incurred by him in connection with such
cooperation to the extent approved in advance in writing by the Company, and, if any such cooperation is provided
after the Termination Date at a time when Executive is not receiving any severance payments under this Employment
Agreement, shall compensate Executive for Executive’s time in providing such cooperation at Executive’s hourly
Base Salary rate (based on an eight (8) hour work day) as in effect on the Termination Date (provided that no such
compensation shall be paid with respect to Executive’s testimony as a witness). For the avoidance of doubt, the
immediately preceding sentence shall not require the Company to reimburse Executive for any attorneys’ fees or
related costs Executive may incur absent advance written approval by the Company.

Section 18.03. Assignment; Binding Effect. This Employment Agreement may be assigned in whole or
in part by the Company or its successors, but may not be assigned by Executive in whole or in part. Notwithstanding
the foregoing, this Employment Agreement shall inure to the benefit of and be enforceable by Executive’s personal
representatives, executors, administrators, successors, heirs, distributees, devisees and legatees. If Executive should
die while any amounts under this Employment Agreement are owed to him based on events occurring on or prior to
such death, all such amounts, unless otherwise provided herein, shall be paid in accordance with the terms of this
Employment Agreement to Executive’s estate.

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Section 18.04. Headings. Headings used in this Employment Agreement are for convenience only and

shall not be used to interpret or construe its provisions.

Section 18.05. Waiver. No provision of this Employment Agreement may be waived or discharged
unless such waiver or discharge is agreed to in writing and signed by the Company and Executive. No waiver by
either Party hereto at any time of any breach by the other Party hereto of, or compliance with, any condition or
provision of this Employment Agreement to be performed by such other Party shall be deemed a waiver of similar or
dissimilar provisions or conditions at the same or at any prior or subsequent time.

Section 18.06. Amendments. No amendments or variations of the terms and conditions of this

Employment Agreement shall be valid unless the same is in writing and signed by the Parties hereto.

Section 18.07. Severability. The invalidity or unenforceability of any provision of this Employment
Agreement, whether in whole or in part, shall not in any way affect the validity and/or enforceability of any other
provision contained herein. Any invalid or unenforceable provision shall be deemed severable to the extent of any
such invalidity or unenforceability. It is expressly understood and agreed that while the Company and Executive
consider the restrictions contained in this Employment Agreement reasonable for the purpose of preserving for the
Company the goodwill, other proprietary rights and intangible business value of the Company, if a final judicial
determination is made by a court having jurisdiction that the time or territory or any other restriction contained in this
Employment Agreement is an unreasonable or otherwise unenforceable restriction against Executive, the provisions
of such clause shall not be rendered void but shall be deemed amended to apply as to maximum time and territory
and to such other extent as such court may judicially determine or indicate to be reasonable.

Section 18.08. Governing Law. This Employment Agreement shall be construed and enforced

pursuant to the laws of the State of Idaho, applied without reference to principles of conflicts of law.

Section 18.09. Executive Officer Status. Executive acknowledges that he may be deemed to be an

“executive officer” of the Company for purposes of the Securities Act of 1933, as amended (the “1933 Act”), and the
1934 Act and, if so, he shall comply in all respects with all the rules and regulations under the 1933 Act and the 1934
Act applicable to him in a timely and non-delinquent manner. In order to assist the Company in complying with its
obligations under the 1933 Act and 1934 Act, Executive shall provide to the Company such information about
Executive as the Company shall reasonably request including, but not limited to, information relating to personal
history and stockholdings. Executive shall report to the Secretary of the Company or other designated officer of the
Company all changes in beneficial ownership of any shares of the Company’s Common Stock deemed to be
beneficially owned by Executive and/or any members of Executive’s immediate family. Executive further agrees to
comply with all requirements placed on him by the Sarbanes-Oxley Act of 2002, Public Law 107-204.

Section 18.10. Tax Withholding. To the extent required by law, the Company shall deduct or withhold

from any payments under this Employment Agreement all applicable federal,

24

state and local income taxes, Social Security, Medicare, unemployment tax and other amounts that the Company
determines in good faith are required by law to be withheld.

Section 18.11. Counterparts. This Employment Agreement may be executed in one or more

counterparts, each of which shall be deemed to be an original, but all of which together shall constitute but one
document.

Section 18.12. Retention of Counsel. Executive acknowledges that he has had the opportunity to

review this Employment Agreement and the transactions contemplated hereby with his own legal counsel.

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IN WITNESS WHEREOF, this Employment Agreement has been duly executed by the Company and

Executive as of the date first above written.

EXECUTIVE:

/s/ Steven D. Welling
STEVEN D. WELLING

COMPANY:

US ECOLOGY, INC.

/s/ Jeffrey R. Feeler

By:
Name: Jeffrey R. Feeler
Title: PRESIDENT AND CHIEF EXECUTIVE

OFFICER

Exhibit 10.16

AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT

This AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT (this “Employment

Agreement”) is made and entered into effective as of the 22nd day of December, 2020 (the “Effective Date”), by and
between US ECOLOGY, INC., a Delaware corporation (the “Company”), and SIMON G. BELL (“Executive”). The
Company and Executive are sometimes collectively referred to herein as the “Parties,” and individually, as a
“Party.”

WHEREAS, immediately prior to the Effective Date, Executive rendered valuable services to the Company

in the capacity of Executive Vice President and Chief Operating Officer, pursuant to an Executive Employment
Agreement, dated February 25, 2016 (the “Prior Agreement”); and

WHEREAS, the Parties desire to amend and restate the Prior Agreement in its entirety as set forth herein and
to continue Executive’s employment with the Company as Executive Vice President and Chief Operating Officer on
the terms and conditions hereinafter set forth.

NOW, THEREFORE, in consideration of the premises, the mutual promises, covenants and conditions
herein contained and for other good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the Parties hereto, intending to be legally bound hereby, agree as follows:

1.0.      Employment.

Section 1.01.   Employment. The Company hereby employs Executive, and Executive hereby accepts

employment with the Company, all upon the terms and subject to the conditions set forth in this Employment
Agreement, effective as of the Effective Date first set forth above.

Section 1.02.   Term of Employment. The term of employment of Executive by the Company pursuant
to this Employment Agreement shall be for the period commencing on the Effective Date and ending December 31,
2021 (the “Employment Term”), or such earlier date that Executive’s employment is terminated in accordance with
the provisions of this Employment Agreement; provided, however, that the Employment Term shall automatically
renew for additional one year periods if neither the Company nor Executive has notified the other in writing of its or
his intention not to renew this Employment Agreement on or before 60 days prior to the expiration of the
Employment Term (including any renewal(s) thereof).

Section 1.03.   Capacity and Duties. During the Employment Term, Executive is and shall be

employed in the capacity of Executive Vice President and Chief Operating Officer of the Company and its
subsidiaries, and shall have such other duties, responsibilities and authorities as may be assigned to him from time to
time by the President and Chief Executive Officer (“CEO”) and the Board of Directors of the Company (the
“Board”), which are not materially inconsistent with Executive’s positions with the Company. Except as otherwise
herein provided, Executive shall devote his entire business time, best efforts and attention to promote and advance
the business of the Company and its subsidiaries and to perform diligently and

faithfully all the duties, responsibilities and obligations of Executive to be performed by him under this Employment
Agreement. Upon termination of Executive’s employment for any reason, unless otherwise requested by the Board,
Executive will be deemed to have resigned from the Board (and all other positions held at the Company and its
affiliates) voluntarily, without any further action by Executive, as of the end of Executive’s employment, and
Executive, at the Board’s request, will execute any documents necessary to reflect his resignation.

Section 1.04.   Place of Employment. Executive’s principal place of work shall be the main corporate
office of the Company, currently located in Boise, Idaho; provided, however, that the location of the Company and
any of its offices may be moved from time to time in the discretion of the Board.

Section 1.05.   No Other Employment. During the Employment Term, Executive shall not be

employed in any other business activity, whether or not such activity is pursued for gain, profit or other pecuniary
advantage; provided, however, that this restriction shall not be construed as preventing Executive from (i)
participating in charitable, civic, educational, professional, community or industry affairs; (ii) sitting on one outside
board of directors for a public or private company that does not compete with the Company, with the prior
concurrence of the Board that the required time commitment with respect to such position is acceptable; and (iii)
investing his personal assets in a business which does not compete with the Company or its subsidiaries or with any
other company or entity affiliated with the Company, where the form or manner of such investment will not require
services on the part of Executive in the operation of the affairs of the business in which such investment is made and
in which his participation is solely that of a passive investor or advisor, so long as the activities in clauses (i), (ii) and
(iii), above, do not materially interfere with the performance of Executive’s duties hereunder or create a potential
business conflict or the appearance thereof.

Section 1.06.   Adherence to Standards. Executive shall comply with the written policies, standards,

rules and regulations of the Company from time to time established for all executive officers of the Company
consistent with Executive’s position and level of authority, including, without limitation, policies relating to stock
ownership guidelines, clawback of compensation, hedging and pledging of securities and insider trading.

Section 1.07.   Review of Performance. The CEO shall periodically review and evaluate with

Executive his performance under this Employment Agreement.

2.0.      Compensation.

During the Employment Term, subject to all the terms and conditions of this Employment Agreement and as
compensation for all services to be rendered by Executive hereunder, the Company shall pay to or provide Executive
with the following:

Section 2.01.   Base Salary. During the Employment Term, the Company shall pay to Executive an

annual base salary (“Base Salary”) in an amount not less than Four Hundred

2

Fifty-Three Thousand and No/100 Dollars ($453,000.00). Such Base Salary shall be payable in accordance with the
regular payroll practices and procedures of the Company.

Section 2.02.   Incentive Pay. During the Employment Term, Executive shall be eligible to participate
in any cash incentive or bonus plans of the Company which are in effect for executives from time to time, including
the annual cash incentive payment opportunity granted to Executive under the Company’s Management Incentive
Plan (“MIP,” and together with any other cash incentive or bonus plans of the Company in which Executive
participates, the “Cash Incentive Plans”), subject to the terms and conditions thereof, at a minimum 75% of Base
Salary (“Target Bonus”) at a 100% of MIP target basis, with such MIP target to be set annually by the Board.
Anything to the contrary in this Employment Agreement notwithstanding, the Company reserves the right to modify
or terminate any or all of its Cash Incentive Plans at any time. In the event of any inconsistency between the terms of
this Employment Agreement and the terms of any Cash Incentive Plan, the Cash Incentive Plan shall govern and
control; provided, however, that any amount owed to Executive under a Cash Incentive Plan in accordance with the
terms thereof shall be paid to Executive no later than March 15 of the calendar year immediately following the
calendar year in which the applicable performance period ended.

Section 2.03.   Paid Time Off and Other Benefits. During the Employment Term, Executive shall be

entitled to Paid Time Off (“PTO”) consistent with the Company’s policy for senior executives (as in effect from time
to time), and shall have the right, on the same basis as other members of senior management of the Company, to
participate in any and all employee benefit plans and programs of the Company, including medical plans and other
benefit plans and programs as shall be, from time to time, in effect for executive employees and senior management
personnel of the Company. Such participation shall be subject to the terms of the applicable plan documents,
generally applicable Company policies and the discretion of the Board or any administrative or other committee
provided for in, or contemplated by, each such plan or program. Anything to the contrary in this Employment
Agreement notwithstanding, the Company reserves the right to modify or terminate such benefit plans and programs
at any time, including, without limitation, any modification of the Company’s PTO policy.

Section 2.04.   Expenses. The Company shall reimburse Executive for all reasonable, ordinary and
necessary business expenses including, but not limited to, automobile and other business travel and customer and
business entertainment expenses incurred by him during the Employment Term in connection with his employment
in accordance with the Company’s expense reimbursement policy; provided, however, Executive shall render to the
Company a complete and accurate accounting of all such business expenses in accordance with the substantiation
requirements of the Internal Revenue Code of 1986, as amended (the “Code”). Executive’s right to reimbursement
hereunder may not be liquidated or exchanged for any other benefit, the amount of expenses eligible for
reimbursement hereunder in a calendar year shall not affect the amount of expenses eligible for reimbursement
hereunder in any other calendar year, and Executive shall be reimbursed for eligible expenses no later than the close
of the calendar year immediately following the calendar year in which Executive incurs the applicable expense.

3

3.0.      Termination of Employment.

Section 3.01.   Termination of Employment. Executive’s employment and the Employment Term may
be terminated prior to expiration of the Employment Term as follows (with the date of termination being referred to
hereinafter as the “Termination Date”):

(a)        By either Party by delivering 60 days’ prior written notice of non-renewal as set forth in

Section 1.02 above;

(b)        Upon no less than 30 days’ written notice from the Company to Executive at any time without

Cause (as hereinafter defined) and other than due to Executive’s death or Disability, subject to the provisions of
Section 4.02 below;

(c)        By the Company for Cause (as hereinafter defined) immediately upon written notice stating

the basis for such termination;

(d)        Immediately upon the death of Executive;

(e)        Due to the Disability (as hereinafter defined) of Executive;

(f)        By Executive due to Retirement (as hereinafter defined) upon 90 days’ prior written notice to

the Company stating that Executive does not intend to engage in full-time employment following such termination of
employment;

(g)        By Executive at any time with or without Good Reason (as hereinafter defined), other than

due to Retirement, upon 30 days’ written notice from Executive to the Company (or such shorter period to which the
Company may agree); or

(h)        Upon the mutual agreement of the Company and Executive.

Section 3.02.   Certain Definitions. For purposes of this Employment Agreement, the following terms

have the meanings set forth below:

(a)        “Cause” shall mean, by reason of a determination by two-thirds (2/3) of the members of the
Board (excluding, for all such purposes, Executive, if Executive is a member of the Board) voting, that Executive:

(i)       Has engaged in willful neglect (other than neglect resulting from his incapacity due to

physical or mental illness) of Executive’s duties or willful misconduct in the performance of his duties for the
Company under this Employment Agreement, or has willfully violated any material written policy of the
Company;

(ii)       Has engaged in willful or grossly negligent conduct the consequences of which are

materially adverse to the Company, monetarily or otherwise;

4

(iii)      Has failed to follow the lawful instructions of the CEO or the Board that are consistent

with his position as Executive Vice President and Chief Operating Officer;

(iv)       Has materially breached the terms of this Employment Agreement, and such breach

persisted after notice thereof from the Company and a reasonable opportunity to cure; or

(v)        Has been convicted of (or has plead guilty or no contest to) any felony (other than a

traffic violation) or any misdemeanor involving moral turpitude.

(b)        “Disability” shall mean that, as a result of Executive’s incapacity due to physical or mental

illness, Executive is considered disabled under the Company’s Long-Term Disability Plan or, in the absence of such
plan, Executive is unable (without reasonable accommodation), as determined by the Board in good faith, to perform
Executive’s essential duties, responsibilities and functions under this Employment Agreement for a period of 180
days during any 12 consecutive months.

(c)        “Good Reason” shall mean the occurrence of any of the following without Executive’s prior

written consent during the Employment Term:

(i)         Any material diminution or adverse change in Executive’s title, authority,

responsibilities or duties under this Employment Agreement which are materially inconsistent with his title,
authority, responsibilities or duties set forth in this Employment Agreement, or any removal of Executive
from, or failure to appoint, elect, reappoint or reelect Executive to, any of his positions, except in connection
with the termination of his employment with or without Cause, or as a result of his death or Disability;

(ii)       The exclusion of Executive from any incentive, bonus or other similar plan in which

Executive participated at the time that this Employment Agreement is executed, unless an equitable
arrangement (embodied in an ongoing substitute or alternative plan) has been made with respect to the failure
to continue such plan, or the failure by the Company to continue Executive’s participation therein, or any
action by the Company which would directly or indirectly materially reduce his participation therein or
reward opportunities thereunder; provided, however, that Executive continues to meet all eligibility
requirements thereof. Notwithstanding the foregoing, this provision shall not apply to the exclusion of
Executive from any incentive, bonus or other similar plan in which Executive participated at the time that this
Employment Agreement is executed to the extent that such termination is required by law, or applies to all of
the Company’s executive officers and/or employees generally.

(iii)      The failure by the Company to include or continue Executive’s participation in any
material employee benefit plan (including any medical, hospitalization, life insurance or disability benefit
plan in which Executive participates or in which other Company executives participate), or any material
fringe benefit or

5

prerequisite enjoyed by him unless an equitable arrangement (embodied in an ongoing substitute or
alternative plan, if applicable) has been made with respect to the failure to include Executive in such plan, or
the failure by the Company to continue Executive’s participation therein, or any action by the Company
which would directly or indirectly materially reduce his participation therein or reward opportunities
thereunder, or the failure by the Company to provide him with the benefits to which he is entitled under this
Employment Agreement; provided, however, that Executive continues to meet all eligibility requirements
thereof. Notwithstanding the foregoing, this provision shall not apply to the exclusion of Executive from any
employee benefit plan in which Executive participated at the time that this Employment Agreement is
executed to the extent that such exclusion is required by law, or applies to all of the Company’s executive
officers and/or employees generally;

(iv)       Any material breach by the Company of any provision of this Employment

Agreement; or

(v)        The relocation of the main corporate office of the Company beyond a 50 mile radius

from Boise, Idaho or beyond a fifty (50) mile radius from Executive’s primary place of employment if not in
the corporate office, in each case which materially increases Executive’s commute.

Notwithstanding any other provision of this Employment Agreement to the contrary, Executive shall be
deemed not to have terminated his employment for Good Reason unless (i) Executive notifies the Board in writing of
the condition that Executive believes constitutes Good Reason within 90 days after the initial existence thereof
(which notice specifically identifies such condition and the details regarding its existence), (ii) the Company fails to
remedy such condition within 30 days after the date on which the Board receives such notice (the “Remedial
Period”), and (iii) Executive terminates employment with the Company (and its subsidiaries and affiliates) within 60
days after the end of the Remedial Period. The failure by Executive to include in the notice any fact or circumstance
that contributes to a showing of Good Reason shall not waive any right of Executive hereunder or preclude Executive
from asserting such fact or circumstance in enforcing Executive’s rights hereunder.

(d)        “Retirement” shall mean Executive’s termination of employment with the Company and its

subsidiaries for any reason (other than for Cause, or when grounds for Cause exist, or due to Executive’s death) after
attaining age [52] and having been employed by the Company or its subsidiaries for not less than 10 consecutive
years as of immediately prior to such termination of employment.

4.0.      Payments and Benefits Upon Termination of Employment.

Section 4.01.   Termination by the Company For Cause or by Executive Without Good Reason. If
Executive’s employment and the Employment Term are terminated by the Company for Cause or by Executive
without Good Reason (but not due to Retirement), the Company shall pay Executive the Accrued Obligations (as
hereinafter defined) (other than, however, any amounts due under any Cash Incentive Plan which shall be forfeited
pursuant to

6

the terms of such plan), in a single, lump-sum payment in accordance with the regular payroll practices and
procedures of the Company but in no event longer than 45 days following such termination (or on such earlier date
required by applicable law).

Section 4.02.   Termination by the Company Without Cause or by Executive For Good Reason.

Subject to Section 5.0 below, if Executive’s employment and the Employment Term are terminated by the Company
without Cause or if Executive terminates his employment and the Employment Term for Good Reason, the Company
shall pay Executive the Accrued Obligations in a single, lump-sum payment in accordance with the regular payroll
practices and procedures of the Company but in no event longer than 45 days following such termination (or on such
earlier date required by applicable law) or, in the case of a Cash Incentive Plan payment, according to the terms of
such plan but no later than March 15 of the calendar year immediately following the calendar year in which the
applicable performance period ended. In addition, subject to Sections 5.0, 6.0 and 7.0, in the event of such a
termination, Executive shall be entitled to receive the following:

(i)         an amount equal to the sum of two year’s Base Salary and two times Target Bonus

(“Severance Payment”), which shall be payable during the two year period immediately following the
Termination Date as provided below;

(ii)       continued vesting of outstanding stock options and stock appreciation rights for a

period of two years following the Termination Date, with any stock option and stock appreciation right held
by Executive immediately prior to such termination that is, or becomes, vested to remain exercisable until the
earlier of the second anniversary of the Termination Date and the original expiration date of such stock option
or stock appreciation right (as applicable);

(iii)       immediate vesting of any restricted stock grants that would have vested during the

two-year period immediately following the Termination Date;

(iv)       continued vesting of restricted stock unit grants for a period of two years following the

Termination Date in the same manner as if no such termination had occurred;

(v)        continued vesting of performance stock and performance stock units in the same

manner as if no termination of employment had occurred, with payment calculated based on actual
performance but with vesting to be pro-rated based on the number of days from the start of the performance
period through the second anniversary of the Termination Date in relation to the total number of days in the
performance period (provided that such pro-ration shall not result in a pro-ration factor greater than 1);

(vi)       reimbursement of Executive’s and his eligible dependents’ insurance premiums

pursuant to the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended (“COBRA”) under the
Company’s medical, dental and vision plans if Executive and Executive’s eligible dependents are eligible for,
and timely elect, COBRA continuation coverage, with such reimbursements to be provided for a period of the
lesser

7

of 18 months immediately following the Termination Date or the date Executive or such dependent receives
similar or comparable coverage from a new employer, a spouse or the employer of a spouse; provided,
however, that the Company may unilaterally amend this clause (v) or eliminate the benefit provided
hereunder to the extent it deems necessary to avoid the imposition of excise taxes, penalties or similar charges
on the Company or any of its subsidiaries or affiliates, including, without limitation, under Code Section
4980D, or to the extent that this provision violates applicable law or non-discrimination rules (Executive
understands that such COBRA reimbursement may be treated as taxable, in which case, Executive shall be
grossed-up for such taxes in accordance with Section 409A);

(vii)     6 monthly payments each in an amount equal to the greater of (x) two (2) times the

monthly COBRA insurance premiums as of the Termination Date under the Company’s medical, dental and
vision plans and (y) $5,000, in either case as compensation for Executive’s loss of participation in certain of
the Company’s employee benefit plans, which shall commence on the first payroll date following the 18-
month anniversary of the Termination Date; and

(viii)    24 monthly cash payments each in an amount equal to two (2) times the monthly

premiums as of the Termination Date for the life insurance and long-term disability insurance coverage under
the Company’s life insurance and long-term disability plans covering Executive as of immediately prior to the
Termination Date (the “L&D Payments”), which shall be payable during the two year period immediately
following the Termination Date as provided below.

All payments and benefits under this Section 4.02 (other than the Accrued Obligations) shall be conditional on
Executive’s timely execution and non-revocation of the Release (as defined in Section 6.0) and Executive’s
continued compliance with Section 9.0, Section 12.0, Section 13.0, and Section 14.0. Payment of the Severance
Payment and the L&D Payments shall be made in substantially equal installments in accordance with the regular
payroll practices and procedures of the Company commencing on the first payroll date occurring after Executive’s
Release becomes effective (but not later than sixty (60) days after the Termination Date); provided, however, that the
first such payment shall include any installments that would have been made on previous payroll dates but for the
requirement that Executive execute a Release. For the avoidance of doubt, a termination of employment pursuant to
Section 3.01(a) by notice of non-renewal by the Company for any reason other than Cause, shall be deemed a
termination of employment by the Company without Cause for purposes of this Section 4.02 and Section 5, as
applicable.

Section 4.03.   Termination Due to Death. If Executive’s employment and the Employment Term are 

terminated due to Executive’s death, the Company shall pay the estate of Executive the Accrued Obligations in a 
single, lump-sum payment within 45 days following such termination (or on such earlier date required by applicable 
law) or, in the case of a Cash Incentive Plan payment, according to the terms of such plan but no later than March 15 
of the calendar year immediately following the calendar year in which the applicable performance period ended. In 
addition, in the event of such a termination of employment: (i) all unvested

8

stock options, stock appreciation rights, restricted stock, restricted stock units, performance stock and performance
stock units will immediately vest (with performance being deemed achieved at target), (ii) all restricted stock units
and performance stock units that become vested under clause (i) shall be settled within 30 days after the Termination
Date and (iii) all stock options and stock appreciation rights held by Executive as of immediately prior to such
termination shall remain exercisable until their normal expiration date.

Section 4.04.   Termination Due to Disability. If Executive’s employment and the Employment Term

are terminated due to his Disability, the Company shall pay Executive the Accrued Obligations in a single, lump-sum
payment in accordance with the regular payroll practices and procedures of the Company but in no event longer than
45 days following such termination (or on such earlier date required by applicable law) or, in the case of a Cash
Incentive Plan payment, according to the terms of such plan but no later than March 15 of the calendar year
immediately following the calendar year in which the applicable performance period ended. In addition, in the event
of such a termination of employment: (i) all unvested stock options, stock appreciation rights, restricted stock,
performance stock and performance stock units (but only performance stock units that are not subject to Section
409A (as hereinafter defined)) will immediately vest (with performance being deemed achieved at target), (ii) all
restricted stock units will continue to vest for a period of two years following the Termination Date in the same
manner as if no such termination had occurred (provided that if such termination occurs within 24 months after a
Change of Control, any restricted stock units granted after the Effective Date will vest in full upon such termination
and shall be settled within 30 days thereafter), (iii) any performance stock units that are subject to Section 409A will
continue to vest in the same manner as if no such termination of employment had occurred, with performance
deemed achieved at target (provided that if such termination occurs within 24 months after a Change of Control, any
performance stock units that are subject to Section 409A granted after the Effective Date will vest in full upon such
termination with performance being deemed achieved at target and shall be settled within 30 days thereafter), (iv) all
performance stock units that become vested under clause (i) shall be settled within 30 days after the Termination
Date and (v) all stock options and stock appreciation rights held by Executive as of immediately prior to such
termination shall remain exercisable until their normal expiration date; provided, however, that such continued
vesting and exercisability of any restricted stock, restricted stock units, stock options, stock appreciation rights,
performance stock units and performance stock under this Section 4.04 shall be conditional on Executive’s timely
execution and non-revocation of the Release and Executive’s continued compliance with Section 9.0, Section 12.0,
Section 13.0, and Section 14.0 below.

Section 4.05.   Retirement. If Executive’s employment and the Employment Term are terminated by
virtue of Executive’s Retirement, the Company shall pay Executive the Accrued Obligations in a single, lump-sum
payment in accordance with the regular payroll practices and procedures of the Company but in no event longer than
45 days following such termination (or on such earlier date required by applicable law) or, in the case of a Cash
Incentive Plan payment, according to the terms of such plan but no later than March 15 of the calendar year
immediately following the calendar year in which the applicable performance period ended.

9

Section 4.06.   Definition of Accrued Obligations. “Accrued Obligations” shall mean (i) any earned

but unpaid Base Salary through the Termination Date and any PTO that is accrued but unused as of the Termination
Date (with such accrual determined in accordance with the Company’s PTO policy); (ii) any unreimbursed business
expenses incurred through the Termination Date that are otherwise reimbursable in accordance with Company
policy; (iii) all other payments, benefits or fringe benefits to which Executive may be entitled under the terms of any
applicable compensation arrangement or benefit, equity or fringe benefit plan or program or grant or this
Employment Agreement; and (iv) subject to forfeiture of any such payments under the terms of the applicable Cash
Incentive Plan (x) to the extent unpaid, any cash incentive earned under any Cash Incentive Plan for the fiscal year
prior to the year in which Executive’s termination occurs and (y) any cash incentive earned under any Cash Incentive
Plan in the year of Executive’s termination of employment based on actual results over the entire performance period
and shall be paid on a pro-rata basis based on days employed during the fiscal year of such plan if any. With respect
to clause (iv)(y) of this Section 4.06, for the sake of clarity and by way of example only, if Executive is employed for
270 days of a fiscal year and the management incentive plan in place at the time pays out 100% of target, Executive
would be owed 74% (270/365) of any incentive payments to which he would have been entitled had his employment
not been terminated. Such payments under clause (iv) hereof shall be made in accordance with the terms of any Cash
Incentive Plan in effect at the time, except that any requirement that the recipient must be an employee at the time of
payment shall be waived by the Company under this policy.

5.0.      Payment and Benefits Upon Certain Terminations in Connection with a Change of Control.

Section 5.01.   Change of Control Severance Benefits. Subject to Sections 6.0 and 7.0 below, if within

24 months after a Change of Control, Executive’s employment and the Employment Term are terminated by the
Company without Cause (but not due to death or Disability) or by Executive for Good Reason, then Executive shall
receive:

(i)        in lieu of the Severance Payment, a payment equal to two times the sum of (x) his

annual Base Salary; and (y) the greater of (a) any earned but unpaid amount due under any Cash Incentive
Plan (as determined by the terms of the Cash Incentive Plan); and (b) Executive’s Target Bonus amount
(collectively, the “Change of Control Payment”);

(ii)       the payments and benefits set forth in clauses (vi), (vii) and (viii) of Section 4.02 at the

times provided therein;

(iii)      full vesting of all unvested stock options, stock appreciation rights, restricted stock,
restricted stock units (but only to the extent such restricted stock units are granted after the Effective Date),
performance stock units (but only to the extent such performance stock units (x) are not subject to Section
409A or (y) are subject to Section 409A but are granted after the Effective Date) and performance stock (with
all stock options and stock appreciation rights to remain exercisable through their normal expiration date,
with performance with respect to any performance-based awards to be

10

deemed achieved at target and with all restricted stock units and performance stock units that become vested
under this clause (iii) to be settled within 30 days after the Termination Date), provided, however, that if
unvested stock options, stock appreciation rights, restricted stock, performance stock units (to the extent not
subject to Section 409A) and performance stock held by Executive are not continued, substituted for or
assumed by the successor company in connection with a Change of Control, such awards shall immediately
vest upon the Change of Control;

(iv)       with respect to any restricted stock units that are outstanding on the Effective Date,

continued vesting of such restricted stock units in the same manner as if no such termination of employment
had occurred; and

(v)        with respect to any performance stock units that are subject to Section 409A that are

outstanding on the Effective Date, continued vesting of such performance stock units in the same manner as if
no such termination of employment had occurred (with payment based on target performance).

The Change of Control Payment shall be paid in a single lump-sum payment on the first payroll date after the
effective date of the Release, but in any event within 60 days after the Termination Date.

In the event of a termination described in this Section 5.0, Executive also shall be entitled to receive the Accrued
Obligations (to be provided in accordance with Section 4.02).

In the event of an inconsistency between this Section 5.0 and Section 4.02, this Section 5.0 shall govern and control.

Section 5.02.   Definition of Change of Control. A “Change of Control” shall be deemed to have

occurred upon:

(i)         The consummation of a reorganization, merger, statutory share exchange or consolidation or similar

transaction involving the Company (each, a “Business Combination”), unless, following such Business
Combination, all or substantially all of the individuals and entities that were the beneficial owners of the combined
voting power of the Company’s outstanding securities immediately prior to such Business Combination beneficially
own, directly or indirectly, at least 60% of the combined voting power of the then-outstanding securities of the entity
resulting from such Business Combination; provided, however, that a public offering of the Company’s securities
shall not constitute a Business Combination;

(ii)       The sale, transfer, or other disposition of all or substantially all of the Company’s assets;

(iii)      Any transaction as a result of which any person is the “beneficial owner” (as defined in Rule 13d-3

under the Securities Exchange Act of 1934, as amended (the “1934 Act”)), directly or indirectly, of securities of the
Company representing more than 30% of the total voting power represented by the Company’s then outstanding
voting securities. For purposes of this subparagraph (iii), the term “person” shall have the same meaning as when
used in sections

11

13 and 14(d) of the 1934 Act, but shall exclude (x) a trustee or other fiduciary holding securities under an employee
benefit plan of the Company or of a subsidiary; (y) a corporation owned directly or indirectly by the stockholders of
the Company in substantially the same proportions as their ownership of the common stock of the Company; and (z)
any person or entity owning more than 30% of the total voting power represented by the Company’s then outstanding
voting securities immediately prior to such transaction; or

(iv)       A change in the composition of the Board in any 12-month period as a result of which fewer than a

majority of the directors are Incumbent Directors. “Incumbent Directors” shall mean directors who either (a) are
directors of the Company as of the start of the period or (b) are elected, or nominated for election, to the Board with
the affirmative votes (either by a specific vote or by approval of the proxy statement of the Company in which such
person is named as a nominee for election as a director without objection to such nomination) of at least a majority of
the Incumbent Directors at the time of such election or nomination (but shall not include an individual whose
election or nomination is in connection with an actual or threatened proxy contest relating to the election of directors
of the Company).

Notwithstanding the foregoing or anything contained herein to the contrary, no transaction or event shall be a
Change of Control unless it also satisfies the requirements of Treasury Regulation Section 1.409A-3(i)(5)(v), (vi) or
(vii).

6.0.      Release.

Executive’s entitlement to the payments and benefits described in Section 4.02, Section 4.04, Section 4.05
and Section 5.0, in each case, other than the Accrued Obligations, is subject to and conditioned upon Executive’s
timely execution, without subsequent revocation, of a release of claims in favor of the Company and its subsidiaries
and affiliates in form and substance satisfactory to the Company (the “Release”); provided, however, that
notwithstanding the foregoing, the Release is not intended to and will not waive Executive’s rights: (i) to
indemnification pursuant to any applicable provision of the Company’s Bylaws or Certificate of Incorporation, as
amended, pursuant to any written indemnification agreement between Executive and the Company, or pursuant to
applicable law; (ii) to vested benefits or payments specifically to be provided to Executive under this Employment
Agreement or any Company employee benefit plans or policies; or (iii) respecting any claims Executive may have
solely by virtue of Executive’s status as a stockholder of the Company. The Release also shall not impose any
restrictive covenant on Executive’s conduct post-termination that Executive had not agreed to prior to Executive’s
termination in this Agreement or otherwise or include claims that an employee cannot lawfully release through
execution of a general release of claims.

To be timely, the Release must become effective (i.e., Executive must sign it and any revocation period must
expire without Executive revoking the Release) within 60 days, or such shorter period specified in the Release, after
Executive’s date of termination of employment. If the Release does not become effective within such time period,
then Executive shall not be entitled to such payments and benefits. The Company is obligated to provide Executive
the Release within 7 calendar days after the Termination Date and Executive shall have a minimum of 21 calendar
days to review and comment on the Release.

12

Notwithstanding anything contained in this Employment Agreement to the contrary, if payment or provision

of any amounts under Section 4.02, Section 4.04, Section 4.05 and Section 5.0, in each case, on which Executive’s
execution and non-revocation of the Release is conditioned, could commence in more than one calendar year based
on when the Release could be executed (regardless of when the Release is executed), then to the extent any such
amounts are treated as nonqualified deferred compensation under Section 409A (as hereinafter defined) any such
amounts that otherwise would have been paid or provided in such first calendar year instead shall be withheld and
paid or provided on the first payroll date in such second calendar year with all remaining payments and benefits to be
made as if no such delay had occurred.

7.0.      Compliance With Section 409A.

Section 7.01.   General. The provisions of this Employment Agreement are intended to comply with

the requirements of Section 409A of the Code and any regulations and official guidance promulgated thereunder
(“Section 409A”) or an exemption or exclusion therefrom and, with respect to amounts that are subject to Section
409A, shall in all respects be interpreted in accordance with Section 409A. Any payments that qualify for the “short-
term deferral” exception or another exception under Section 409A shall be paid under the applicable exception. Each
payment of compensation under this Employment Agreement shall be treated as a separate payment of compensation
for purposes of Section 409A and a right to a series of installment payments under this Employment Agreement
(including pursuant to Section 4.02) shall be treated as a right to a series of separate and distinct payments. All 
payments to be made upon a termination of employment under this Employment Agreement that are treated as 
nonqualified deferred compensation under Section 409A may only be made upon a “separation from service” under 
Section 409A. In no event may Executive, directly or indirectly, designate the calendar year of any payment under 
this Employment Agreement. For purposes of this Employment Agreement, a termination of Executive’s 
employment as a result of Disability, by the Company without Cause or by Executive for Good Reason, in each case, 
is intended to constitute an “involuntary separation” within the meaning of, and for purposes of, Section 409A, and 
this Employment Agreement shall be interpreted accordingly.

Section 7.02.   In-Kind Benefits and Reimbursements. Notwithstanding anything to the contrary in this

Employment Agreement, all reimbursements and in-kind benefits provided hereunder shall be made or provided in
accordance with the requirements of Section 409A, including, where applicable, the requirement that (a) any
reimbursement is for expenses incurred during Executive’s lifetime (or during a shorter period of time specified
herein); (b) the amount of expenses eligible for reimbursement, or in-kind benefits provided, during a calendar year
may not affect the expenses eligible for reimbursement, or in-kind benefits to be provided, in any other calendar year,
except, if such benefits consist of the reimbursement of expenses referred to in Section 105(b) of the Code, a
maximum, if provided under the terms of the plan providing such medical benefit, may be imposed on the amount of
such reimbursements over some or all of the period in which such benefit is to be provided to Executive as described
in Treasury Regulation Section 1.409A-3(i)(1)(iv)(B); (c) the reimbursement of an eligible expense will be made no
later than the last day of the calendar year immediately following the calendar year in which the expense is incurred,
provided that reimbursement shall be made only if Executive has submitted an invoice for such expenses at least 10
days before the end of the calendar year

13

immediately following the calendar year in which such expenses were incurred; and (d) the right to reimbursement or
in-kind benefits is not subject to liquidation or exchange for another benefit.

Section 7.03.   Delay of Payments. Notwithstanding any other provision of this Employment

Agreement to the contrary, if Executive is considered a “specified employee” for purposes of Section 409A (as
determined in accordance with the methodology established by the Company as in effect on the date of termination
of employment), any payment that constitutes nonqualified deferred compensation within the meaning of Section
409A that is otherwise due to Executive hereunder during the six-month period immediately following Executive’s
separation from service (as determined in accordance with Section 409A) on account of Executive’s separation from
service shall be accumulated and paid to Executive on the first business day after the date that is six months
immediately following Executive’s separation from service (the “Delayed Payment Date”). Executive shall be
entitled to interest (at a per annum rate equal to the highest rate of interest applicable to six-month non-callable
certificates of deposit with daily compounding offered by the following institutions: Citibank, N.A., Wells Fargo
Bank, N.A. or Bank of America, on the date of such separation from service) on any cash payments so delayed from
the scheduled date of payment to the Delayed Payment Date. If Executive dies during the postponement period, the
amounts and entitlements delayed on account of Section 409A shall be paid to the personal representative of
Executive’s estate on the first to occur of the Delayed Payment Date or 30 days after the date of Executive’s death.

Section 7.04.   Cooperation. Executive and the Company agree to work together in good faith to
consider amendments to this Employment Agreement and to take such reasonable actions which are necessary,
appropriate or desirable to avoid imposition of any additional tax or income recognition prior to actual payment to
Executive under Section 409A.

Section 7.05.   No Liability. Notwithstanding anything contained in this Employment Agreement to

the contrary, neither the Company nor any of its subsidiaries or affiliates shall have any liability or obligation to
Executive or to any other person or entity in the event that this Employment Agreement, or any of the payments or
benefits provided under this Employment Agreement, does not comply with, or is not exempt from, Section 409A.

8.0.      Limitation on Payments.

Notwithstanding any other provision of this Employment Agreement or any other agreement or arrangement

between Executive and the Company or any of its affiliates, in the event that the payments and other benefits
provided for in this Employment Agreement, together with all other payments and benefits that Executive receives or
is entitled to receive from the Company or any of its subsidiaries, (i) constitute “parachute payments” within the
meaning of Section 280G of the Code and (ii) but for this Section 8.0, would be subject to the excise tax imposed by
Section 4999 of the Code, then such payments and benefits will be either:

(a)        delivered in full; or

(b)        delivered as to such lesser extent as would result in no portion of such payments and benefits

being subject to excise tax under Section 4999 of the Code,

14

whichever of the foregoing amounts, taking into account the applicable federal, state and local income taxes and the
excise tax imposed by Section 4999 of the Code, results in the receipt by Executive on an after-tax basis, of the
greatest amount of payments and benefits, notwithstanding that all or some portion of such payments and benefits
may be taxable under Section 4999 of the Code. If a reduction in payments and benefits constituting “parachute
payments” is necessary so that payments and benefits are delivered to a lesser extent under Section 8.0(b) hereof,
reduction shall occur in the following order: (i) reduction of cash severance payments (reduced from the latest
scheduled payments to the earliest scheduled payments); (ii) cancellation of any equity awards that are included
under Section 280G of the Code at full value rather than accelerated value (reduced from highest value to lowest
value under Section 280G of the Code and, if such values are the same, from latest to earliest scheduled vesting
dates); (iii) cancellation of the accelerated vesting of any equity awards included under Section 280G of the Code at
an accelerated value (and not at full value), which shall be reduced with the highest value reduced first (as such
values are determined under Treasury Regulation Section 1.280G-1, Q&A 24) (and if such values are the same, from
latest to earliest vesting dates); and (iv) reduction of any other non-cash benefits (including the value of the
accelerated payment of any cash payments), reduced in the order of highest to lowest value under Code Section 280G
(and if such values are the same, from latest to earliest payment dates); provided, in each case, that any such
reduction shall be made in a manner consistent with the requirements of Section 409A. Unless the Company and
Executive otherwise agree in writing, any determination required under this Section 8.0 will be made in writing by an
independent, nationally recognized accounting firm selected by the Company (the “Firm”), whose determination will
be conclusive and binding upon Executive and the Company for all purposes. For purposes of making the
calculations required by this Section 8.0, the Firm may make reasonable assumptions and approximations concerning
applicable taxes and may rely on reasonable, good faith interpretations concerning the application of Sections 280G
and 4999 of the Code. The Company and Executive will furnish to the Firm such information and documents as the
Firm may reasonably request in order to make a determination under this Section 8.0. The Company will bear all
costs the Firm may reasonably incur in connection with any calculations contemplated by this Section 8.0.

9.0.      Return of Property.

Executive agrees, upon the termination of his employment with the Company or upon the earlier written

request of the Company, to return to the Company all physical, computerized, electronic or other types of records,
documents, proposals, notes, lists, files and any and all other materials, including without limitation, computerized
and/or electronic information that refers, relates or otherwise pertains to the Company and/or its subsidiaries, and any
and all business dealings of said persons and entities. In addition, Executive shall return to the Company all property
and equipment that Executive has been issued during the course of his employment or which he otherwise then
possesses or has control over, including but not limited to, any computers, cellular phones, personal digital assistants,
pagers and/or similar items. Executive shall immediately deliver to the Company any such physical, computerized,
electronic or other types of records, documents, proposals, notes, lists, files, materials, property and equipment that
are in Executive’s possession or control. Executive further agrees that he will immediately forward to the Company
any business information regarding the Company and/or its subsidiaries that has been or is inadvertently directed to
Executive following his last day of employment with

15

the Company. The provisions of this Section 9.0 are in addition to any other written agreements on this subject that
Executive may have with the Company and/or its subsidiaries, and are not meant to and do not excuse any additional
obligations that Executive may have under such agreements.

10.0.    Notices.

For the purposes of this Employment Agreement, notices and all other communications provided for

hereunder shall be in writing and shall be deemed to have been duly given when personally delivered or sent by
certified mail, return receipt requested, postage prepaid, or by expedited (overnight) courier with established national
reputation, shipping prepaid or billed to sender, in either case addressed to the respective addresses last given by each
Party to the other (provided that all notices to the Company shall be directed to the attention of the CEO) or to such
other address as either Party may have furnished to the other in writing in accordance herewith. All notices and
communications shall be deemed to have been received on the date of delivery thereof, or on the second day after
deposit thereof with an expedited courier service, except that notice of change of address shall be effective only upon
receipt. Notices shall be addressed as follows:

If to the Company:

101 S. Capitol Blvd., Suite 1000
Boise, Idaho 83702

If to Executive:

As on file with the Company’s Corporate Secretary

11.0.    Life Insurance.

The Company may, at any time after the execution of this Employment Agreement, apply for and procure as

owner and for its own benefit, life insurance on Executive, in such amounts and in such form or forms as the
Company may determine. Executive shall, at the request of the Company, submit to such medical examinations,
supply such information, and execute such documents as may be required by the insurance company or companies to
whom the Company has applied for such insurance.

12.0.    Confidentiality.

Executive agrees not to disclose or reveal to any person or entity outside the Company or any of its
subsidiaries any confidential, trade secret, proprietary or other non-public information concerning the Company, any
of its subsidiaries or any of the businesses or operations of the Company or any of its subsidiaries (“Confidential
Information”), including all information relating to any Company or subsidiary product, process, equipment,
machinery, design, formula, business plan or strategy, or other activity without prior permission of the Company in
writing.

16

Confidential Information shall not include any information which is in the public domain or becomes publicly
known, in either case, through no wrongful act on the part of Executive or breach of this Employment Agreement.
Executive acknowledges that the Confidential Information is vital, sensitive, confidential and proprietary to the
Company or its subsidiaries. The obligation to protect the secrecy of such information continues after employment
with Company or any of its subsidiaries may be terminated. In furtherance of this agreement, Executive
acknowledges that all Confidential Information which Executive now possesses, or shall hereafter acquire,
concerning and pertaining to the business and secrets of the Company or any of its subsidiaries and all inventions or
discoveries made or developed, or suggested by or to Executive during said term of employment relating to the
Company’s or any of its subsidiaries’ business shall, at all times and for all purposes, be regarded as acquired and
held by Executive in his fiduciary capacity and solely for the benefit of the Company or any of its subsidiaries.

Pursuant to 18 U.S.C. § 1833(b), Executive understands that he will not be held criminally or civilly liable

under any federal or state trade secret law for the disclosure of a trade secret of the Company or any of its
subsidiaries that (i) is made (A) in confidence to a federal, state, or local government official, either directly or
indirectly, or to his attorney and (B) solely for the purpose of reporting or investigating a suspected violation of law;
or (ii) is made in a complaint or other document that is filed under seal in a lawsuit or other proceeding. Executive
understands that if he files a lawsuit for retaliation by the Company or any of its subsidiaries for reporting a
suspected violation of law, he may disclose the trade secret to his attorney and use the trade secret information in the
court proceeding if he (I) files any document containing the trade secret under seal, and (II) does not disclose the
trade secret, except pursuant to court order. Nothing in this Employment Agreement, or any other agreement that
Executive has with the Company, is intended to conflict with 18 U.S.C. § 1833(b) or create liability for disclosures
of trade secrets that are expressly allowed by such section. Further, nothing in this Employment Agreement or any
other agreement that Executive has with the Company or any of its affiliates shall prohibit or restrict him from
making any voluntary disclosure of information or documents concerning possible violations of law to any
governmental agency or legislative body, or any self-regulatory organization, in each case, without advance notice to
the Company.

13.0.    Work Product Assignment.

Executive agrees that all inventions, innovations, discoveries, improvements, technical information, systems,

software developments, methods, designs, analyses, data, drawings, reports, works of authorship, service marks,
trademarks, trade names, logos and all similar or related information or developments (whether patentable or
unpatentable) which relate to the actual or anticipated business, research and development or existing or future
products or services of the Company or of any of its subsidiaries or affiliates, and which are conceived, developed or
made by Executive (whether or not during usual business hours and whether or not alone or in conjunction with any
other person) while employed by the Company, together with all patent applications, letters patent, trademark, trade
name and service mark applications or registrations, copyrights and reissues thereof that may be granted for or upon
any of the foregoing and any other intellectual property right or other proprietary rights in any of the foregoing
(collectively referred to herein as the “Work Product”), are in all instances the exclusive property of the Company,
and Executive hereby irrevocably assigns to the Company

17

all Work Product and all of his interest therein, including all rights to claim and recover damages and/or injunctive
relief for past, present, and future infringement or violation of any Work Product. Executive agrees to promptly make
full written disclosure to the Company of any and all Work Product. Executive will promptly perform all actions
reasonably requested by the Board (whether during or after his employment with the Company) to establish and
confirm the ownership of such Work Product (including, without limitation, the execution and delivery of
assignments, consents, powers of attorney and other instruments) by the Company or its subsidiaries or affiliates, as
applicable, and to provide reasonable assistance to the Company or any of its subsidiaries and affiliates in connection
with the prosecution of any applications for patents, trademarks, trade names, service marks or reissues thereof or
other intellectual property rights, or in the prosecution, maintenance, enforcement and defense of any intellectual
property rights or other proprietary rights in any Work Product. Without limiting the foregoing, Executive hereby
irrevocably designates and appoints the Company and its duly authorized officers and agents as Executive’s agent
and attorney-in-fact, to act for and on Executive’s behalf to execute and file any such application or applications or
other documents and to do all other lawfully permitted acts to further the prosecution and issuance of letters patent,
copyright or trademark registrations or any other legal protection thereon with the same legal force and effect as if
executed by Executive.

14.0.    Covenant Not to Compete, Not to Solicit and Not to Disparage.

Section 14.01. Acknowledgment of Executive. Executive acknowledges that his employment with the

Company has special, unique and extraordinary value to the Company; that the Company has a lawful interest in
protecting its investment in entrusting its Confidential Information to him; that the Company would be irreparably
damaged if Executive were to provide services to any person or entity in violation of this Employment Agreement;
that in performing such services Executive would inevitably disclose the Company’s Confidential Information to
third parties; and that the restrictions, prohibitions and other provisions of this Section 14.0 are reasonable, fair and
equitable in scope, terms, and duration to protect the legitimate business interests of the Company, and are a material
inducement to the Company to enter into this Employment Agreement.

Section 14.02. Non-Competition Covenant. Without the consent in writing of the Board, Executive

will not, during Executive’s employment with the Company and (i) for a period of 18 months after a termination of
employment by the Company without Cause, including for non-renewal of the Employment Term, or by Executive
for Good Reason or (ii) for a period of 12 months after a termination of employment by Executive without Good
Reason, acting alone or in conjunction with others, directly or indirectly engage anywhere in the United States or any
other country in which the Company conducts business (either as owner, investor, partner, stockholder, employer,
employee, consultant, advisor or director) in activities on behalf of any person or entity that provides environmental
or industrial products or services that are in competition with any products or services provided by the Company or
any of its subsidiaries or that the Company or any of its subsidiaries had plans to provide as of the termination of
Executive’s employment. It is agreed that the ownership of not more than five percent (5%) of the equity securities
of any company having securities listed on an exchange or regularly traded in the over-the-counter market shall not,
of itself, be deemed inconsistent with this Section 14.02.

18

Section 14.03. Non-Solicitation of Customers and Prospective Customers. Without the consent in

writing of the Board, Executive will not, during Executive’s employment with the Company and (i) for a period of
18 months after a termination of employment by the Company without Cause, including for non-renewal of the
Employment Term, or by Executive for Good Reason or (ii) for a period of 12 months after a termination of
employment by Executive without Good Reason, acting alone or in conjunction with others, either directly or
indirectly, solicit, encourage or induce, or attempt to solicit, encourage or induce, any customer or prospective
customer of the Company or any of its subsidiaries to curtail or cancel its business with the Company or any of its
subsidiaries.

Section 14.04. Non-Solicitation of Employees. Without the consent in writing of the Board, Executive

will not, during Executive’s employment with the Company and (i) for a period of 18 months after a termination of
employment if the Company without Cause, including for non-renewal of the Employment Term, or by Executive for
Good Reason or (ii) for a period of 12 months after a termination of employment by Executive without Good
Reason, acting alone or in conjunction with others, either directly or indirectly, solicit, encourage or induce, or
attempt to solicit, encourage or induce, any employee of the Company or any of its subsidiaries to terminate his or
her employment.

Section 14.05. Non-Disparagement. Executive agrees that during Executive’s employment with the
Company and at all times thereafter, Executive shall not directly or indirectly through any other person, make any
statements (whether orally, in writing, on social media or otherwise) that disparage, denigrate or malign any of the
Company, its affiliates or any of their respective businesses, activities, operations or reputations or any of their
respective directors, managers, officers, employees, representatives or more than 1% stockholders. The Company
shall not permit any member of the Board to, or authorize or direct any employee of the Company to, make any
public statements (whether orally, in writing, on social media or otherwise) that disparage, denigrate or malign
Executive. For purposes of clarification, and not limitation, a statement shall be deemed to disparage, denigrate or
malign a person if such statement could be reasonably construed to adversely affect the opinion any other person
may have or form of such first person. The foregoing limitations shall not be violated by truthful statements made (i)
to any governmental authority, (ii) which such person believes, based on the advice of counsel, are in response to
legal process, required governmental testimony or filings, or administrative or arbitral proceedings (including,
without limitation, depositions in connection with such proceedings), (iii) in good faith in connection with any
employment (or similar) performance or similar review or (iv) as necessary to defend or prosecute a claim or
allegation.

15.0.    Remedies.

Section 15.01. Specific Performance; Costs of Enforcement. Executive acknowledges that the

covenants and agreements which he has made in this Employment Agreement are reasonable and are required for the
reasonable protection of the Company, its subsidiaries and their respective businesses. Executive agrees that the
breach of any covenant or agreement contained herein will result in irreparable injury to the Company and/or its
subsidiaries, and that, in addition to all other remedies provided by law or in equity with respect to the breach of any
provision of this Employment Agreement, the Company, its subsidiaries and

19

each of their respective successors and assigns will be entitled to enforce the specific performance by Executive of
his obligations hereunder and to enjoin him from engaging in any activity in violation hereof and that no claim by
Executive against the Company, any of its subsidiaries or any of their respective successors or assigns will constitute
a defense or bar to the specific enforcement of such obligations. Executive agrees that the Company, its subsidiaries
and each of their respective successors and assigns shall be entitled to recover all costs of enforcing any provision of
this Employment Agreement, including, without limitation, reasonable attorneys’ fees and costs of litigation. In the
event of a breach by Executive of any covenant or agreement contained in Section 14.0 (other than Section 14.05),
the running of the restrictive covenant periods (but not of Executive’s obligations thereunder) shall be tolled during
the period of the continuance of any actual breach or violation.

Section 15.02. Additional Remedies for Breach of Restrictive Covenants. The provisions of Section

12.0, Section 13.0, and Section 14.0 (collectively, the “Restrictive Covenants”) are separate and distinct
commitments independent of each of the other Sections. Accordingly, notwithstanding any other provision of this
Employment Agreement, Executive agrees that damages in the event of a breach or a threatened breach by Executive
of Section 12.0, Section 13.0 and/or Section 14.0 would be difficult if not impossible to ascertain and an inadequate
remedy, and it is therefore agreed that the Company, in addition to and without limiting any other remedy or right it
may have, shall have the right to an immediate injunction or other equitable relief enjoining any such threatened or
actual breach, without any requirement to post bond or provide similar security or to prove actual damages. The
existence of this right shall not preclude the Company from pursuing any other rights and remedies at law or in
equity that the Company may have, including recovery of damages for any breach of such Sections.

Section 15.03. Right to Cancel Payments.

(a)        In addition to the remedies set forth above in Sections 15.01 and 15.02, the Company may, at

the sole discretion of the Board, cancel, rescind or reduce the Severance Payment and the other payments and
benefits under Sections 4.02 and 4.04 (other than the Accrued Obligations), whether vested or not, at any time, if
Executive is not in compliance with all of the provisions of Section 12.0, Section 13.0 and Section 14.0.

(b)        As a condition to the receipt of any payment or benefit under Sections 4.02 and 4.04 (other
than the Accrued Obligations), Executive shall certify to the Company that he is in compliance with the provisions
set forth above.

(c)        In the event that the Company has rescinded any payments or benefits under Sections 4.02 and

4.04 pursuant to Section 15.03(a) at the time of Executive’s alleged breach and the arbitrator determines that
Executive has failed to comply with the provisions set forth in Section 12.0, Section 13.0 and/or Section 14.0, as
finally determined by binding arbitration pursuant to Section 16.0, Executive shall pay to the Company, within 12
months of the Company’s rescission of one or more such payments or benefits, the amount of any such payment(s) or
benefit(s) received as a result of the rescinded payment(s) or benefit(s), without interest, in such further manner and
on such further terms and conditions as may be required by the Company; and the Company shall be entitled to set-
off against the amount of such payment

20

or benefit any amount owed to Executive by the Company or any of its subsidiaries (if permitted by Section 409A),
other than wages.

(d)        Executive acknowledges that the foregoing provisions are fair, equitable and reasonable for

the protection of the Company’s interests in a stable workforce and the time and expense the Company has incurred
to develop its business and its customer and vendor relationships.

(e)        Notwithstanding the foregoing or anything contained herein to the contrary, this Section 15.03
shall not apply to any payments or benefits owed to Executive in the event of a termination of employment described
in Section 5.0.

16.0.    Dispute Resolution; WAIVER OF JURY TRIAL.

Except for claims to enforce or otherwise relating to the Restrictive Covenants, including any claim for

injunctive, declaratory or other equitable relief, which remedies may be sought in any court of competent
jurisdiction:

Section 16.01. Initial Negotiations. The Company and Executive agree to resolve all disputes arising

out of their employment relationship by the following alternative dispute resolution process: (a) the Company and
Executive agree to seek a fair and prompt negotiated resolution; but if this is not possible, (b) all disputes shall be
resolved by binding arbitration; provided, however, that during this process, at the request of either Party, made not
later than 60 days after the initial arbitration demand, the Parties agree to attempt to resolve any dispute by non-
binding, third-party intervention, including either mediation or evaluation or both but without delaying the arbitration
hearing date. BY ENTERING INTO THIS EMPLOYMENT AGREEMENT, BOTH PARTIES GIVE UP
THEIR RIGHT TO HAVE THE DISPUTE DECIDED IN COURT BY A JUDGE OR JURY.

Section 16.02. Mandatory Arbitration. Any controversy or claim arising out of or connected with

Executive’s employment or service with the Company or any of its affiliates or the termination thereof, including but
not limited to claims for compensation or severance and claims of wrongful termination, age, sex or other
discrimination or civil rights shall be decided by arbitration. In the event the Parties cannot agree on an arbitrator,
then the arbitrator shall be selected by the administrator of the American Arbitration Association (“AAA”) office in
Salt Lake City, Utah. The arbitrator shall be an attorney with at least 15 years’ experience in employment law in
Idaho. Boise, Idaho shall be the site of the arbitration. All statutes of limitation, which would otherwise be
applicable, shall apply to any arbitration proceeding hereunder. Any issue about whether a controversy or claim is
covered by this Employment Agreement shall be determined by the arbitrator.

Section 16.03. Arbitration Rules.

(a)        The arbitration shall be conducted in accordance with this Employment Agreement, using as
appropriate the AAA Employment Arbitration Rules and Mediation Procedures then-in-effect. The arbitrator shall
not be bound by the rules of evidence or of civil

21

procedure, but rather may consider such writings and oral presentations as reasonable business people would use in
the conduct of their day-to-day affairs, and may require both Parties to submit some or all of their respective cases by
written declaration or such other manner of presentation as the arbitrator may determine to be appropriate. The
Parties agree to limit live testimony and cross-examination to the extent necessary to ensure a fair hearing on
material issues.

(b)        The arbitrator shall take such steps as may be necessary to hold a private hearing within 120

days after the initial request for arbitration; and the arbitrator’s written decision shall be made not later than 14
calendar days after the hearing. The Parties agree that they have included these time limits in order to expedite the
proceeding, but they are not jurisdictional, and the arbitrator may for good cause allow reasonable extensions or
delays, which shall not affect the validity of the award. Both written discovery and depositions shall be allowed. The
extent of such discovery will be determined by the Parties and any disagreements concerning the scope and extent of
discovery shall be resolved by the arbitrator. The written decision shall contain a brief statement of the claim(s)
determined and the award made on each claim. In making the decision and award, the arbitrator shall apply
applicable substantive law. The arbitrator may award injunctive relief or any other remedy available from a judge,
including consolidation of this arbitration with any other involving common issues of law or fact which may promote
judicial economy, and shall award attorneys’ fees and costs to the prevailing Party in accordance with Section 17.0,
but shall not have the power to award punitive or exemplary damages except where expressly authorized by statute.
The Parties specifically state that the agreement to limit damages was agreed to by the Parties after negotiations.

17.0.    Attorneys’ Fees.

Section 17.01. Prevailing Party Entitled to Attorneys’ Fees. In any action at law or in equity, or in

arbitration, to enforce any of the provisions or rights under this Employment Agreement, the prevailing Party to such
litigation, as determined by the arbitrator in accordance with the dispute resolution provisions set forth above, shall
be entitled to recover from the unsuccessful Party all costs, expenses and reasonable attorneys’ fees incurred therein
by such prevailing Party (including, without limitation, such costs, expenses and fees on appeal), excluding,
however, any time spent by Company employees, including in-house legal counsel, and if such prevailing Party shall
recover judgment in any such action or proceeding, such costs, expenses and attorneys’ fees shall be included as part
of such judgment; provided that nothing herein shall limit Executive’s right to recover Executive’s full attorney’s
fees and costs in accordance with any statute authorizing an award of such fees and costs.

Section 17.02. Limitation on Fees. Notwithstanding the foregoing provision, in no event shall the

prevailing Party be entitled to recover an amount from the unsuccessful Party for costs, expenses and attorneys’ fees
that exceeds the unsuccessful Party’s costs, expenses and attorneys’ fees in connection with the action or proceeding.

22

18.0.    Miscellaneous Provisions.

Section 18.01. Prior Employment Agreements. Executive represents and warrants that Executive’s

performance of all the terms of this Employment Agreement and as an executive of the Company does not, and will
not, breach any employment agreement, arrangement or understanding or any agreement, arrangement or
understanding to keep in confidence proprietary information acquired by Executive in confidence or in trust prior to
Executive’s employment by the Company. Executive has not entered into, and shall not enter into, any agreement,
arrangement or understanding, either written or oral, which is in conflict with this Employment Agreement or which
would be violated by Executive entering into, or carrying out his obligations under, this Employment Agreement.
This Employment Agreement supersedes any former oral agreement and any former written agreement heretofore
executed relating generally to the employment of Executive with the Company, including without limitation, the
Prior Agreement.

Section 18.02. Cooperation. During and after Executive’s employment, Executive agrees to cooperate

with the Company or any of its subsidiaries in any internal investigation, any administrative, regulatory, or judicial
proceeding or any dispute with a third party concerning issues about which Executive has knowledge. Executive’s
cooperation may include, without limitation, being available to the Company or any of its subsidiaries upon
reasonable notice for interviews and factual investigations, appearing at the Company’s or any of its subsidiaries’
request to give testimony without requiring service of a subpoena or other legal process, volunteering to the
Company or any of its subsidiaries pertinent information, and turning over to the Company or any of its subsidiaries
all relevant documents which are or may come into Executive’s possession. The Company shall take into account
Executive’s other obligations in the case of any cooperation requested after the Termination Date. The Company
shall promptly reimburse Executive for the reasonable expenses and costs incurred by him in connection with such
cooperation to the extent approved in advance in writing by the Company, and, if any such cooperation is provided
after the Termination Date at a time when Executive is not receiving any severance payments under this Employment
Agreement, shall compensate Executive for Executive’s time in providing such cooperation at Executive’s hourly
Base Salary rate (based on an eight (8) hour work day) as in effect on the Termination Date (provided that no such
compensation shall be paid with respect to Executive’s testimony as a witness). For the avoidance of doubt, the
immediately preceding sentence shall not require the Company to reimburse Executive for any attorneys’ fees or
related costs Executive may incur absent advance written approval by the Company.

Section 18.03. Assignment; Binding Effect. This Employment Agreement may be assigned in whole or
in part by the Company or its successors, but may not be assigned by Executive in whole or in part. Notwithstanding
the foregoing, this Employment Agreement shall inure to the benefit of and be enforceable by Executive’s personal
representatives, executors, administrators, successors, heirs, distributees, devisees and legatees. If Executive should
die while any amounts under this Employment Agreement are owed to him based on events occurring on or prior to
such death, all such amounts, unless otherwise provided herein, shall be paid in accordance with the terms of this
Employment Agreement to Executive’s estate.

23

Section 18.04. Headings. Headings used in this Employment Agreement are for convenience only and

shall not be used to interpret or construe its provisions.

Section 18.05. Waiver. No provision of this Employment Agreement may be waived or discharged
unless such waiver or discharge is agreed to in writing and signed by the Company and Executive. No waiver by
either Party hereto at any time of any breach by the other Party hereto of, or compliance with, any condition or
provision of this Employment Agreement to be performed by such other Party shall be deemed a waiver of similar or
dissimilar provisions or conditions at the same or at any prior or subsequent time.

Section 18.06. Amendments. No amendments or variations of the terms and conditions of this

Employment Agreement shall be valid unless the same is in writing and signed by the Parties hereto.

Section 18.07. Severability. The invalidity or unenforceability of any provision of this Employment
Agreement, whether in whole or in part, shall not in any way affect the validity and/or enforceability of any other
provision contained herein. Any invalid or unenforceable provision shall be deemed severable to the extent of any
such invalidity or unenforceability. It is expressly understood and agreed that while the Company and Executive
consider the restrictions contained in this Employment Agreement reasonable for the purpose of preserving for the
Company the goodwill, other proprietary rights and intangible business value of the Company, if a final judicial
determination is made by a court having jurisdiction that the time or territory or any other restriction contained in this
Employment Agreement is an unreasonable or otherwise unenforceable restriction against Executive, the provisions
of such clause shall not be rendered void but shall be deemed amended to apply as to maximum time and territory
and to such other extent as such court may judicially determine or indicate to be reasonable.

Section 18.08. Governing Law. This Employment Agreement shall be construed and enforced

pursuant to the laws of the State of Idaho, applied without reference to principles of conflicts of law.

Section 18.09. Executive Officer Status. Executive acknowledges that he may be deemed to be an

“executive officer” of the Company for purposes of the Securities Act of 1933, as amended (the “1933 Act”), and the
1934 Act and, if so, he shall comply in all respects with all the rules and regulations under the 1933 Act and the 1934
Act applicable to him in a timely and non-delinquent manner. In order to assist the Company in complying with its
obligations under the 1933 Act and 1934 Act, Executive shall provide to the Company such information about
Executive as the Company shall reasonably request including, but not limited to, information relating to personal
history and stockholdings. Executive shall report to the Secretary of the Company or other designated officer of the
Company all changes in beneficial ownership of any shares of the Company’s Common Stock deemed to be
beneficially owned by Executive and/or any members of Executive’s immediate family. Executive further agrees to
comply with all requirements placed on him by the Sarbanes-Oxley Act of 2002, Public Law 107-204.

Section 18.10. Tax Withholding. To the extent required by law, the Company shall deduct or withhold

from any payments under this Employment Agreement all applicable federal,

24

state and local income taxes, Social Security, Medicare, unemployment tax and other amounts that the Company
determines in good faith are required by law to be withheld.

Section 18.11. Counterparts. This Employment Agreement may be executed in one or more

counterparts, each of which shall be deemed to be an original, but all of which together shall constitute but one
document.

Section 18.12. Retention of Counsel. Executive acknowledges that he has had the opportunity to

review this Employment Agreement and the transactions contemplated hereby with his own legal counsel.

[The remainder of this page intentionally left blank]

25

IN WITNESS WHEREOF, this Employment Agreement has been duly executed by the Company and

Executive as of the date first above written.

EXECUTIVE:

/s/ Simon G. Bell
SIMON G. BELL

COMPANY:

US ECOLOGY, INC.

/s/ Jeffrey R. Feeler

By:
Name:Jeffrey R. Feeler
Title: PRESIDENT AND CHIEF EXECUTIVE

OFFICER

Exhibit 10.18

AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT

This AMENDED AND RESTATED EXECUTIVE EMPLOYMENT AGREEMENT (this “Employment

Agreement”) is made and entered into effective as of the 22nd day of December, 2020 (the “Effective Date”), by and
between US ECOLOGY, INC., a Delaware corporation (the “Company”), and ANDREW P. MARSHALL
(“Executive”). The Company and Executive are sometimes collectively referred to herein as the “Parties,” and
individually, as a “Party.”

WHEREAS, immediately prior to the Effective Date, Executive rendered valuable services to the Company

in the capacity of Executive Vice President of Regulatory Compliance and Safety, pursuant to an Executive
Employment Agreement, dated February 25, 2016 (the “Prior Agreement”); and

WHEREAS, the Parties desire to amend and restate the Prior Agreement in its entirety as set forth herein and

to continue Executive’s employment with the Company as Executive Vice President of Regulatory Compliance and
Safety on the terms and conditions hereinafter set forth.

NOW, THEREFORE, in consideration of the premises, the mutual promises, covenants and conditions
herein contained and for other good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the Parties hereto, intending to be legally bound hereby, agree as follows:

1.0.      Employment.

Section 1.01.   Employment. The Company hereby employs Executive, and Executive hereby accepts

employment with the Company, all upon the terms and subject to the conditions set forth in this Employment
Agreement, effective as of the Effective Date first set forth above.

Section 1.02.   Term of Employment. The term of employment of Executive by the Company pursuant
to this Employment Agreement shall be for the period commencing on the Effective Date and ending December 31,
2021 (the “Employment Term”), or such earlier date that Executive’s employment is terminated in accordance with
the provisions of this Employment Agreement; provided, however, that the Employment Term shall automatically
renew for additional one year periods if neither the Company nor Executive has notified the other in writing of its or
his intention not to renew this Employment Agreement on or before 60 days prior to the expiration of the
Employment Term (including any renewal(s) thereof).

Section 1.03.   Capacity and Duties. During the Employment Term, Executive is and shall be

employed in the capacity of Executive Vice President of Regulatory Compliance and Safety of the Company and its
subsidiaries, and shall have such other duties, responsibilities and authorities as may be assigned to him from time to
time by the President and Chief Executive Officer (“CEO”) and the Board of Directors of the Company (the
“Board”), which are not materially inconsistent with Executive’s positions with the Company. Except as otherwise
herein provided, Executive shall devote his entire business time, best efforts and attention to promote and advance
the business of the Company and its subsidiaries and to perform diligently

and faithfully all the duties, responsibilities and obligations of Executive to be performed by him under this
Employment Agreement. Upon termination of Executive’s employment for any reason, unless otherwise requested
by the Board, Executive will be deemed to have resigned from the Board (and all other positions held at the
Company and its affiliates) voluntarily, without any further action by Executive, as of the end of Executive’s
employment, and Executive, at the Board’s request, will execute any documents necessary to reflect his resignation.

Section 1.04.   Place of Employment. Executive’s principal place of work shall be the main corporate
office of the Company, currently located in Boise, Idaho; provided, however, that the location of the Company and
any of its offices may be moved from time to time in the discretion of the Board.

Section 1.05.   No Other Employment. During the Employment Term, Executive shall not be

employed in any other business activity, whether or not such activity is pursued for gain, profit or other pecuniary
advantage; provided, however, that this restriction shall not be construed as preventing Executive from (i)
participating in charitable, civic, educational, professional, community or industry affairs; (ii) sitting on one outside
board of directors for a public or private company that does not compete with the Company, with the prior
concurrence of the Board that the required time commitment with respect to such position is acceptable; and (iii)
investing his personal assets in a business which does not compete with the Company or its subsidiaries or with any
other company or entity affiliated with the Company, where the form or manner of such investment will not require
services on the part of Executive in the operation of the affairs of the business in which such investment is made and
in which his participation is solely that of a passive investor or advisor, so long as the activities in clauses (i), (ii) and
(iii), above, do not materially interfere with the performance of Executive’s duties hereunder or create a potential
business conflict or the appearance thereof.

Section 1.06.   Adherence to Standards. Executive shall comply with the written policies, standards,

rules and regulations of the Company from time to time established for all executive officers of the Company
consistent with Executive’s position and level of authority, including, without limitation, policies relating to stock
ownership guidelines, clawback of compensation, hedging and pledging of securities and insider trading.

Section 1.07.   Review of Performance. The CEO shall periodically review and evaluate with

Executive his performance under this Employment Agreement.

2.0.      Compensation.

During the Employment Term, subject to all the terms and conditions of this Employment Agreement and as
compensation for all services to be rendered by Executive hereunder, the Company shall pay to or provide Executive
with the following:

Section 2.01.   Base Salary. During the Employment Term, the Company shall pay to Executive an

annual base salary (“Base Salary”) in an amount not less than Three

2

Hundred Twenty Thousand and No/100 Dollars ($320,000.00). Such Base Salary shall be payable in accordance with
the regular payroll practices and procedures of the Company.

Section 2.02.   Incentive Pay. During the Employment Term, Executive shall be eligible to participate
in any cash incentive or bonus plans of the Company which are in effect for executives from time to time, including
the annual cash incentive payment opportunity granted to Executive under the Company’s Management Incentive
Plan (“MIP,” and together with any other cash incentive or bonus plans of the Company in which Executive
participates, the “Cash Incentive Plans”), subject to the terms and conditions thereof, at a minimum 75% of Base
Salary (“Target Bonus”) at a 100% of MIP target basis, with such MIP target to be set annually by the Board.
Anything to the contrary in this Employment Agreement notwithstanding, the Company reserves the right to modify
or terminate any or all of its Cash Incentive Plans at any time. In the event of any inconsistency between the terms of
this Employment Agreement and the terms of any Cash Incentive Plan, the Cash Incentive Plan shall govern and
control; provided, however, that any amount owed to Executive under a Cash Incentive Plan in accordance with the
terms thereof shall be paid to Executive no later than March 15 of the calendar year immediately following the
calendar year in which the applicable performance period ended.

Section 2.03.   Paid Time Off and Other Benefits. During the Employment Term, Executive shall be

entitled to Paid Time Off (“PTO”) consistent with the Company’s policy for senior executives (as in effect from time
to time), and shall have the right, on the same basis as other members of senior management of the Company, to
participate in any and all employee benefit plans and programs of the Company, including medical plans and other
benefit plans and programs as shall be, from time to time, in effect for executive employees and senior management
personnel of the Company. Such participation shall be subject to the terms of the applicable plan documents,
generally applicable Company policies and the discretion of the Board or any administrative or other committee
provided for in, or contemplated by, each such plan or program. Anything to the contrary in this Employment
Agreement notwithstanding, the Company reserves the right to modify or terminate such benefit plans and programs
at any time, including, without limitation, any modification of the Company’s PTO policy.

Section 2.04.   Expenses. The Company shall reimburse Executive for all reasonable, ordinary and
necessary business expenses including, but not limited to, automobile and other business travel and customer and
business entertainment expenses incurred by him during the Employment Term in connection with his employment
in accordance with the Company’s expense reimbursement policy; provided, however, Executive shall render to the
Company a complete and accurate accounting of all such business expenses in accordance with the substantiation
requirements of the Internal Revenue Code of 1986, as amended (the “Code”). Executive’s right to reimbursement
hereunder may not be liquidated or exchanged for any other benefit, the amount of expenses eligible for
reimbursement hereunder in a calendar year shall not affect the amount of expenses eligible for reimbursement
hereunder in any other calendar year, and Executive shall be reimbursed for eligible expenses no later than the close
of the calendar year immediately following the calendar year in which Executive incurs the applicable expense.

3

3.0.      Termination of Employment.

Section 3.01.   Termination of Employment. Executive’s employment and the Employment Term may
be terminated prior to expiration of the Employment Term as follows (with the date of termination being referred to
hereinafter as the “Termination Date”):

(a)        By either Party by delivering 60 days’ prior written notice of non-renewal as set forth in

Section 1.02 above;

(b)        Upon no less than 30 days’ written notice from the Company to Executive at any time without

Cause (as hereinafter defined) and other than due to Executive’s death or Disability, subject to the provisions of
Section 4.02 below;

(c)        By the Company for Cause (as hereinafter defined) immediately upon written notice stating

the basis for such termination;

(d)        Immediately upon the death of Executive;

(e)        Due to the Disability (as hereinafter defined) of Executive;

(f)        By Executive due to Retirement (as hereinafter defined) upon 90 days’ prior written notice to

the Company stating that Executive does not intend to engage in full-time employment following such termination of
employment;

(g)        By Executive at any time with or without Good Reason (as hereinafter defined), other than

due to Retirement, upon 30 days’ written notice from Executive to the Company (or such shorter period to which the
Company may agree); or

(h)        Upon the mutual agreement of the Company and Executive.

Section 3.02.   Certain Definitions. For purposes of this Employment Agreement, the following terms

have the meanings set forth below:

(a)        “Cause” shall mean, by reason of a determination by two-thirds (2/3) of the members of the
Board (excluding, for all such purposes, Executive, if Executive is a member of the Board) voting, that Executive:

(i)         Has engaged in willful neglect (other than neglect resulting from his incapacity due to
physical or mental illness) of Executive’s duties or willful misconduct in the performance of his duties for the
Company under this Employment Agreement, or has willfully violated any material written policy of the
Company;

(ii)       Has engaged in willful or grossly negligent conduct the consequences of which are

materially adverse to the Company, monetarily or otherwise;

4

(iii)      Has failed to follow the lawful instructions of the CEO or the Board that are consistent

with his position as Executive Vice President of Regulatory Compliance and Safety;

(iv)       Has materially breached the terms of this Employment Agreement, and such breach

persisted after notice thereof from the Company and a reasonable opportunity to cure; or

(v)        Has been convicted of (or has plead guilty or no contest to) any felony (other than a

traffic violation) or any misdemeanor involving moral turpitude.

(b)        “Disability” shall mean that, as a result of Executive’s incapacity due to physical or mental

illness, Executive is considered disabled under the Company’s Long-Term Disability Plan or, in the absence of such
plan, Executive is unable (without reasonable accommodation), as determined by the Board in good faith, to perform
Executive’s essential duties, responsibilities and functions under this Employment Agreement for a period of 180
days during any 12 consecutive months.

(c)        “Good Reason” shall mean the occurrence of any of the following without Executive’s prior

written consent during the Employment Term:

(i)         Any material diminution or adverse change in Executive’s title, authority,

responsibilities or duties under this Employment Agreement which are materially inconsistent with his title,
authority, responsibilities or duties set forth in this Employment Agreement, or any removal of Executive
from, or failure to appoint, elect, reappoint or reelect Executive to, any of his positions, except in connection
with the termination of his employment with or without Cause, or as a result of his death or Disability;

(ii)       The exclusion of Executive from any incentive, bonus or other similar plan in which

Executive participated at the time that this Employment Agreement is executed, unless an equitable
arrangement (embodied in an ongoing substitute or alternative plan) has been made with respect to the failure
to continue such plan, or the failure by the Company to continue Executive’s participation therein, or any
action by the Company which would directly or indirectly materially reduce his participation therein or
reward opportunities thereunder; provided, however, that Executive continues to meet all eligibility
requirements thereof. Notwithstanding the foregoing, this provision shall not apply to the exclusion of
Executive from any incentive, bonus or other similar plan in which Executive participated at the time that this
Employment Agreement is executed to the extent that such termination is required by law, or applies to all of
the Company’s executive officers and/or employees generally.

(iii)      The failure by the Company to include or continue Executive’s participation in any
material employee benefit plan (including any medical, hospitalization, life insurance or disability benefit
plan in which Executive participates or in which other Company executives participate), or any material
fringe benefit or

5

prerequisite enjoyed by him unless an equitable arrangement (embodied in an ongoing substitute or
alternative plan, if applicable) has been made with respect to the failure to include Executive in such plan, or
the failure by the Company to continue Executive’s participation therein, or any action by the Company
which would directly or indirectly materially reduce his participation therein or reward opportunities
thereunder, or the failure by the Company to provide him with the benefits to which he is entitled under this
Employment Agreement; provided, however, that Executive continues to meet all eligibility requirements
thereof. Notwithstanding the foregoing, this provision shall not apply to the exclusion of Executive from any
employee benefit plan in which Executive participated at the time that this Employment Agreement is
executed to the extent that such exclusion is required by law, or applies to all of the Company’s executive
officers and/or employees generally;

(iv)       Any material breach by the Company of any provision of this Employment

Agreement; or

(v)        The relocation of the main corporate office of the Company beyond a 50 mile radius

from Boise, Idaho or beyond a fifty (50) mile radius from Executive’s primary place of employment if not in
the corporate office, in each case which materially increases Executive’s commute.

Notwithstanding any other provision of this Employment Agreement to the contrary, Executive shall be
deemed not to have terminated his employment for Good Reason unless (i) Executive notifies the Board in writing of
the condition that Executive believes constitutes Good Reason within 90 days after the initial existence thereof
(which notice specifically identifies such condition and the details regarding its existence), (ii) the Company fails to
remedy such condition within 30 days after the date on which the Board receives such notice (the “Remedial
Period”), and (iii) Executive terminates employment with the Company (and its subsidiaries and affiliates) within 60
days after the end of the Remedial Period. The failure by Executive to include in the notice any fact or circumstance
that contributes to a showing of Good Reason shall not waive any right of Executive hereunder or preclude Executive
from asserting such fact or circumstance in enforcing Executive’s rights hereunder.

(d)        “Retirement” shall mean Executive’s termination of employment with the Company and its

subsidiaries for any reason (other than for Cause, or when grounds for Cause exist, or due to Executive’s death) after
attaining age [52] and having been employed by the Company or its subsidiaries for not less than 10 consecutive
years as of immediately prior to such termination of employment.

4.0.      Payments and Benefits Upon Termination of Employment.

Section 4.01.   Termination by the Company For Cause or by Executive Without Good Reason. If
Executive’s employment and the Employment Term are terminated by the Company for Cause or by Executive
without Good Reason (but not due to Retirement), the Company shall pay Executive the Accrued Obligations (as
hereinafter defined) (other than, however, any amounts due under any Cash Incentive Plan which shall be forfeited
pursuant to

6

the terms of such plan), in a single, lump-sum payment in accordance with the regular payroll practices and
procedures of the Company but in no event longer than 45 days following such termination (or on such earlier date
required by applicable law).

Section 4.02.   Termination by the Company Without Cause or by Executive For Good Reason.

Subject to Section 5.0 below, if Executive’s employment and the Employment Term are terminated by the Company
without Cause or if Executive terminates his employment and the Employment Term for Good Reason, the Company
shall pay Executive the Accrued Obligations in a single, lump-sum payment in accordance with the regular payroll
practices and procedures of the Company but in no event longer than 45 days following such termination (or on such
earlier date required by applicable law) or, in the case of a Cash Incentive Plan payment, according to the terms of
such plan but no later than March 15 of the calendar year immediately following the calendar year in which the
applicable performance period ended. In addition, subject to Sections 5.0, 6.0 and 7.0, in the event of such a
termination, Executive shall be entitled to receive the following:

(i)         an amount equal to the sum of two year’s Base Salary and two times Target Bonus

(“Severance Payment”), which shall be payable during the two year period immediately following the
Termination Date as provided below;

(ii)       continued vesting of outstanding stock options and stock appreciation rights for a

period of two years following the Termination Date, with any stock option and stock appreciation right held
by Executive immediately prior to such termination that is, or becomes, vested to remain exercisable until the
earlier of the second anniversary of the Termination Date and the original expiration date of such stock option
or stock appreciation right (as applicable);

(iii)      immediate vesting of any restricted stock grants that would have vested during the two-

year period immediately following the Termination Date;

(iv)       continued vesting of restricted stock unit grants for a period of two years following the

Termination Date in the same manner as if no such termination had occurred;

(v)        continued vesting of performance stock and performance stock units in the same

manner as if no termination of employment had occurred, with payment calculated based on actual
performance but with vesting to be pro-rated based on the number of days from the start of the performance
period through the second anniversary of the Termination Date in relation to the total number of days in the
performance period (provided that such pro-ration shall not result in a pro-ration factor greater than 1);

(vi)       reimbursement of Executive’s and his eligible dependents’ insurance premiums

pursuant to the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended (“COBRA”) under the
Company’s medical, dental and vision plans if Executive and Executive’s eligible dependents are eligible for,
and timely elect, COBRA continuation coverage, with such reimbursements to be provided for a period of the
lesser

7

of 18 months immediately following the Termination Date or the date Executive or such dependent receives
similar or comparable coverage from a new employer, a spouse or the employer of a spouse; provided,
however, that the Company may unilaterally amend this clause (v) or eliminate the benefit provided
hereunder to the extent it deems necessary to avoid the imposition of excise taxes, penalties or similar charges
on the Company or any of its subsidiaries or affiliates, including, without limitation, under Code Section
4980D, or to the extent that this provision violates applicable law or non-discrimination rules (Executive
understands that such COBRA reimbursement may be treated as taxable, in which case, Executive shall be
grossed-up for such taxes in accordance with Section 409A);

(vii)     6 monthly payments each in an amount equal to the greater of (x) two (2) times the

monthly COBRA insurance premiums as of the Termination Date under the Company’s medical, dental and
vision plans and (y) $5,000, in either case as compensation for Executive’s loss of participation in certain of
the Company’s employee benefit plans, which shall commence on the first payroll date following the 18-
month anniversary of the Termination Date; and

(viii)    24 monthly cash payments in an amount equal to two (2) times the monthly premiums

as of the Termination Date for the life insurance and long-term disability insurance coverage under the
Company’s life insurance and long-term disability plans covering Executive as of immediately prior to the
Termination Date (the “L&D Payments”), which shall be payable during the two year period immediately
following the Termination Date as provided below.

All payments and benefits under this Section 4.02 (other than the Accrued Obligations) shall be conditional on
Executive’s timely execution and non-revocation of the Release (as defined in Section 6.0) and Executive’s
continued compliance with Section 9.0, Section 12.0, Section 13.0, and Section 14.0. Payment of the Severance
Payment and the L&D Payments shall be made in substantially equal installments in accordance with the regular
payroll practices and procedures of the Company commencing on the first payroll date occurring after Executive’s
Release becomes effective (but not later than sixty (60) days after the Termination Date); provided, however, that the
first such payment shall include any installments that would have been made on previous payroll dates but for the
requirement that Executive execute a Release. For the avoidance of doubt, a termination of employment pursuant to
Section 3.01(a) by notice of non-renewal by the Company for any reason other than Cause, shall be deemed a
termination of employment by the Company without Cause for purposes of this Section 4.02 and Section 5, as
applicable.

Section 4.03.   Termination Due to Death. If Executive’s employment and the Employment Term are 

terminated due to Executive’s death, the Company shall pay the estate of Executive the Accrued Obligations in a 
single, lump-sum payment within 45 days following such termination (or on such earlier date required by applicable 
law) or, in the case of a Cash Incentive Plan payment, according to the terms of such plan but no later than March 15 
of the calendar year immediately following the calendar year in which the applicable performance period ended. In 
addition, in the event of such a termination of employment: (i) all unvested

8

stock options, stock appreciation rights, restricted stock, restricted stock units, performance stock and performance
stock units will immediately vest (with performance being deemed achieved at target), (ii) all restricted stock units
and performance stock units that become vested under clause (i) shall be settled within 30 days after the Termination
Date and (iii) all stock options and stock appreciation rights held by Executive as of immediately prior to such
termination shall remain exercisable until their normal expiration date.

Section 4.04.   Termination Due to Disability. If Executive’s employment and the Employment Term

are terminated due to his Disability, the Company shall pay Executive the Accrued Obligations in a single, lump-sum
payment in accordance with the regular payroll practices and procedures of the Company but in no event longer than
45 days following such termination (or on such earlier date required by applicable law) or, in the case of a Cash
Incentive Plan payment, according to the terms of such plan but no later than March 15 of the calendar year
immediately following the calendar year in which the applicable performance period ended. In addition, in the event
of such a termination of employment: (i) all unvested stock options, stock appreciation rights, restricted stock,
performance stock and performance stock units (but only performance stock units that are not subject to Section
409A (as hereinafter defined)) will immediately vest (with performance being deemed achieved at target), (ii) all
restricted stock units will continue to vest for a period of two years following the Termination Date in the same
manner as if no such termination had occurred (provided that if such termination occurs within 24 months after a
Change of Control, any restricted stock units granted after the Effective Date will vest in full upon such termination
and shall be settled within 30 days thereafter), (iii) any performance stock units that are subject to Section 409A will
continue to vest in the same manner as if no such termination of employment had occurred, with performance
deemed achieved at target (provided that if such termination occurs within 24 months after a Change of Control, any
performance stock units that are subject to Section 409A granted after the Effective Date will vest in full upon such
termination with performance being deemed achieved at target and shall be settled within 30 days thereafter), (iv) all
performance stock units that become vested under clause (i) shall be settled within 30 days after the Termination
Date and (v) all stock options and stock appreciation rights held by Executive as of immediately prior to such
termination shall remain exercisable until their normal expiration date; provided, however, that such continued
vesting and exercisability of any restricted stock, restricted stock units, stock options, stock appreciation rights,
performance stock units and performance stock under this Section 4.04 shall be conditional on Executive’s timely
execution and non-revocation of the Release and Executive’s continued compliance with Section 9.0, Section 12.0,
Section 13.0, and Section 14.0 below.

Section 4.05.   Retirement. If Executive’s employment and the Employment Term are terminated by
virtue of Executive’s Retirement, the Company shall pay Executive the Accrued Obligations in a single, lump-sum
payment in accordance with the regular payroll practices and procedures of the Company but in no event longer than
45 days following such termination (or on such earlier date required by applicable law) or, in the case of a Cash
Incentive Plan payment, according to the terms of such plan but no later than March 15 of the calendar year
immediately following the calendar year in which the applicable performance period ended.

9

Section 4.06.   Definition of Accrued Obligations. “Accrued Obligations” shall mean (i) any earned

but unpaid Base Salary through the Termination Date and any PTO that is accrued but unused as of the Termination
Date (with such accrual determined in accordance with the Company’s PTO policy); (ii) any unreimbursed business
expenses incurred through the Termination Date that are otherwise reimbursable in accordance with Company
policy; (iii) all other payments, benefits or fringe benefits to which Executive may be entitled under the terms of any
applicable compensation arrangement or benefit, equity or fringe benefit plan or program or grant or this
Employment Agreement; and (iv) subject to forfeiture of any such payments under the terms of the applicable Cash
Incentive Plan (x) to the extent unpaid, any cash incentive earned under any Cash Incentive Plan for the fiscal year
prior to the year in which Executive’s termination occurs and (y) any cash incentive earned under any Cash Incentive
Plan in the year of Executive’s termination of employment based on actual results over the entire performance period
and shall be paid on a pro-rata basis based on days employed during the fiscal year of such plan if any. With respect
to clause (iv)(y) of this Section 4.06, for the sake of clarity and by way of example only, if Executive is employed for
270 days of a fiscal year and the management incentive plan in place at the time pays out 100% of target, Executive
would be owed 74% (270/365) of any incentive payments to which he would have been entitled had his employment
not been terminated. Such payments under clause (iv) hereof shall be made in accordance with the terms of any Cash
Incentive Plan in effect at the time, except that any requirement that the recipient must be an employee at the time of
payment shall be waived by the Company under this policy.

5.0.      Payment and Benefits Upon Certain Terminations in Connection with a Change of Control.

Section 5.01.   Change of Control Severance Benefits. Subject to Sections 6.0 and 7.0 below, if within

24 months after a Change of Control, Executive’s employment and the Employment Term are terminated by the
Company without Cause (but not due to death or Disability) or by Executive for Good Reason, then Executive shall
receive:

(i)         in lieu of the Severance Payment, a payment equal to two times the sum of (x) his

annual Base Salary; and (y) the greater of (a) any earned but unpaid amount due under any Cash Incentive
Plan (as determined by the terms of the Cash Incentive Plan); and (b) Executive’s Target Bonus amount
(collectively, the “Change of Control Payment”);

(ii)       the payments and benefits set forth in clauses (vi), (vii) and (viii) of Section 4.02 at the

times provided therein;

(iii)      full vesting of all unvested stock options, stock appreciation rights, restricted stock,
restricted stock units (but only to the extent such restricted stock units are granted after the Effective Date),
performance stock units (but only to the extent such performance stock units (x) are not subject to Section
409A or (y) are subject to Section 409A but are granted after the Effective Date) and performance stock (with
all stock options and stock appreciation rights to remain exercisable through their normal expiration date,
with performance with respect to any performance-based awards to be

10

deemed achieved at target and with all restricted stock units and performance stock units that become vested
under this clause (iii) to be settled within 30 days after the Termination Date), provided, however, that if
unvested stock options, stock appreciation rights, restricted stock, performance stock units (to the extent not
subject to Section 409A) and performance stock held by Executive are not continued, substituted for or
assumed by the successor company in connection with a Change of Control, such awards shall immediately
vest upon the Change of Control;

(iv)       with respect to any restricted stock units that are outstanding on the Effective Date,

continued vesting of such restricted stock units in the same manner as if no such termination of employment
had occurred; and

(v)        with respect to any performance stock units that are subject to Section 409A that are

outstanding on the Effective Date, continued vesting of such performance stock units in the same manner as if
no such termination of employment had occurred (with payment based on target performance).

The Change of Control Payment shall be paid in a single lump-sum payment on the first payroll date after the
effective date of the Release, but in any event within 60 days after the Termination Date.

In the event of a termination described in this Section 5.0, Executive also shall be entitled to receive the Accrued
Obligations (to be provided in accordance with Section 4.02).

In the event of an inconsistency between this Section 5.0 and Section 4.02, this Section 5.0 shall govern and control.

Section 5.02.   Definition of Change of Control. A “Change of Control” shall be deemed to have

occurred upon:

(i)         The consummation of a reorganization, merger, statutory share exchange or consolidation or similar

transaction involving the Company (each, a “Business Combination”), unless, following such Business
Combination, all or substantially all of the individuals and entities that were the beneficial owners of the combined
voting power of the Company’s outstanding securities immediately prior to such Business Combination beneficially
own, directly or indirectly, at least 60% of the combined voting power of the then-outstanding securities of the entity
resulting from such Business Combination; provided, however, that a public offering of the Company’s securities
shall not constitute a Business Combination;

(ii)       The sale, transfer, or other disposition of all or substantially all of the Company’s assets;

(iii)      Any transaction as a result of which any person is the “beneficial owner” (as defined in Rule 13d-3

under the Securities Exchange Act of 1934, as amended (the “1934 Act”)), directly or indirectly, of securities of the
Company representing more than 30% of the total voting power represented by the Company’s then outstanding
voting securities. For purposes of this subparagraph (iii), the term “person” shall have the same meaning as when
used in sections

11

13 and 14(d) of the 1934 Act, but shall exclude (x) a trustee or other fiduciary holding securities under an employee
benefit plan of the Company or of a subsidiary; (y) a corporation owned directly or indirectly by the stockholders of
the Company in substantially the same proportions as their ownership of the common stock of the Company; and (z)
any person or entity owning more than 30% of the total voting power represented by the Company’s then outstanding
voting securities immediately prior to such transaction; or

(iv)       A change in the composition of the Board in any 12-month period as a result of which fewer than a

majority of the directors are Incumbent Directors. “Incumbent Directors” shall mean directors who either (a) are
directors of the Company as of the start of the period or (b) are elected, or nominated for election, to the Board with
the affirmative votes (either by a specific vote or by approval of the proxy statement of the Company in which such
person is named as a nominee for election as a director without objection to such nomination) of at least a majority of
the Incumbent Directors at the time of such election or nomination (but shall not include an individual whose
election or nomination is in connection with an actual or threatened proxy contest relating to the election of directors
of the Company).

Notwithstanding the foregoing or anything contained herein to the contrary, no transaction or event shall be a
Change of Control unless it also satisfies the requirements of Treasury Regulation Section 1.409A-3(i)(5)(v), (vi) or
(vii).

6.0.      Release.

Executive’s entitlement to the payments and benefits described in Section 4.02, Section 4.04, Section 4.05
and Section 5.0, in each case, other than the Accrued Obligations, is subject to and conditioned upon Executive’s
timely execution, without subsequent revocation, of a release of claims in favor of the Company and its subsidiaries
and affiliates in form and substance satisfactory to the Company (the “Release”); provided, however, that
notwithstanding the foregoing, the Release is not intended to and will not waive Executive’s rights: (i) to
indemnification pursuant to any applicable provision of the Company’s Bylaws or Certificate of Incorporation, as
amended, pursuant to any written indemnification agreement between Executive and the Company, or pursuant to
applicable law; (ii) to vested benefits or payments specifically to be provided to Executive under this Employment
Agreement or any Company employee benefit plans or policies; or (iii) respecting any claims Executive may have
solely by virtue of Executive’s status as a stockholder of the Company. The Release also shall not impose any
restrictive covenant on Executive’s conduct post-termination that Executive had not agreed to prior to Executive’s
termination in this Agreement or otherwise or include claims that an employee cannot lawfully release through
execution of a general release of claims.

To be timely, the Release must become effective (i.e., Executive must sign it and any revocation period must
expire without Executive revoking the Release) within 60 days, or such shorter period specified in the Release, after
Executive’s date of termination of employment. If the Release does not become effective within such time period,
then Executive shall not be entitled to such payments and benefits. The Company is obligated to provide Executive
the Release within 7 calendar days after the Termination Date and Executive shall have a minimum of 21 calendar
days to review and comment on the Release.

12

Notwithstanding anything contained in this Employment Agreement to the contrary, if payment or provision

of any amounts under Section 4.02, Section 4.04, Section 4.05 and Section 5.0, in each case, on which Executive’s
execution and non-revocation of the Release is conditioned, could commence in more than one calendar year based
on when the Release could be executed (regardless of when the Release is executed), then to the extent any such
amounts are treated as nonqualified deferred compensation under Section 409A (as hereinafter defined) any such
amounts that otherwise would have been paid or provided in such first calendar year instead shall be withheld and
paid or provided on the first payroll date in such second calendar year with all remaining payments and benefits to be
made as if no such delay had occurred.

7.0.      Compliance With Section 409A.

Section 7.01.   General. The provisions of this Employment Agreement are intended to comply with

the requirements of Section 409A of the Code and any regulations and official guidance promulgated thereunder
(“Section 409A”) or an exemption or exclusion therefrom and, with respect to amounts that are subject to Section
409A, shall in all respects be interpreted in accordance with Section 409A. Any payments that qualify for the “short-
term deferral” exception or another exception under Section 409A shall be paid under the applicable exception. Each
payment of compensation under this Employment Agreement shall be treated as a separate payment of compensation
for purposes of Section 409A and a right to a series of installment payments under this Employment Agreement
(including pursuant to Section 4.02) shall be treated as a right to a series of separate and distinct payments. All 
payments to be made upon a termination of employment under this Employment Agreement that are treated as 
nonqualified deferred compensation under Section 409A may only be made upon a “separation from service” under 
Section 409A. In no event may Executive, directly or indirectly, designate the calendar year of any payment under 
this Employment Agreement. For purposes of this Employment Agreement, a termination of Executive’s 
employment as a result of Disability, by the Company without Cause or by Executive for Good Reason, in each case, 
is intended to constitute an “involuntary separation” within the meaning of, and for purposes of, Section 409A, and 
this Employment Agreement shall be interpreted accordingly.

Section 7.02.   In-Kind Benefits and Reimbursements. Notwithstanding anything to the contrary in this

Employment Agreement, all reimbursements and in-kind benefits provided hereunder shall be made or provided in
accordance with the requirements of Section 409A, including, where applicable, the requirement that (a) any
reimbursement is for expenses incurred during Executive’s lifetime (or during a shorter period of time specified
herein); (b) the amount of expenses eligible for reimbursement, or in-kind benefits provided, during a calendar year
may not affect the expenses eligible for reimbursement, or in-kind benefits to be provided, in any other calendar year,
except, if such benefits consist of the reimbursement of expenses referred to in Section 105(b) of the Code, a
maximum, if provided under the terms of the plan providing such medical benefit, may be imposed on the amount of
such reimbursements over some or all of the period in which such benefit is to be provided to Executive as described
in Treasury Regulation Section 1.409A-3(i)(1)(iv)(B); (c) the reimbursement of an eligible expense will be made no
later than the last day of the calendar year immediately following the calendar year in which the expense is incurred,
provided that reimbursement shall be made only if Executive has submitted an invoice for such expenses at least 10
days before the end of the calendar year

13

immediately following the calendar year in which such expenses were incurred; and (d) the right to reimbursement or
in-kind benefits is not subject to liquidation or exchange for another benefit.

Section 7.03.   Delay of Payments. Notwithstanding any other provision of this Employment

Agreement to the contrary, if Executive is considered a “specified employee” for purposes of Section 409A (as
determined in accordance with the methodology established by the Company as in effect on the date of termination
of employment), any payment that constitutes nonqualified deferred compensation within the meaning of Section
409A that is otherwise due to Executive hereunder during the six-month period immediately following Executive’s
separation from service (as determined in accordance with Section 409A) on account of Executive’s separation from
service shall be accumulated and paid to Executive on the first business day after the date that is six months
immediately following Executive’s separation from service (the “Delayed Payment Date”). Executive shall be
entitled to interest (at a per annum rate equal to the highest rate of interest applicable to six-month non-callable
certificates of deposit with daily compounding offered by the following institutions: Citibank, N.A., Wells Fargo
Bank, N.A. or Bank of America, on the date of such separation from service) on any cash payments so delayed from
the scheduled date of payment to the Delayed Payment Date. If Executive dies during the postponement period, the
amounts and entitlements delayed on account of Section 409A shall be paid to the personal representative of
Executive’s estate on the first to occur of the Delayed Payment Date or 30 days after the date of Executive’s death.

Section 7.04.   Cooperation. Executive and the Company agree to work together in good faith to
consider amendments to this Employment Agreement and to take such reasonable actions which are necessary,
appropriate or desirable to avoid imposition of any additional tax or income recognition prior to actual payment to
Executive under Section 409A.

Section 7.05.   No Liability. Notwithstanding anything contained in this Employment Agreement to

the contrary, neither the Company nor any of its subsidiaries or affiliates shall have any liability or obligation to
Executive or to any other person or entity in the event that this Employment Agreement, or any of the payments or
benefits provided under this Employment Agreement, does not comply with, or is not exempt from, Section 409A.

8.0.      Limitation on Payments.

Notwithstanding any other provision of this Employment Agreement or any other agreement or arrangement

between Executive and the Company or any of its affiliates, in the event that the payments and other benefits
provided for in this Employment Agreement, together with all other payments and benefits that Executive receives or
is entitled to receive from the Company or any of its subsidiaries, (i) constitute “parachute payments” within the
meaning of Section 280G of the Code and (ii) but for this Section 8.0, would be subject to the excise tax imposed by
Section 4999 of the Code, then such payments and benefits will be either:

(a)        delivered in full; or

(b)        delivered as to such lesser extent as would result in no portion of such payments and benefits

being subject to excise tax under Section 4999 of the Code,

14

whichever of the foregoing amounts, taking into account the applicable federal, state and local income taxes and the
excise tax imposed by Section 4999 of the Code, results in the receipt by Executive on an after-tax basis, of the
greatest amount of payments and benefits, notwithstanding that all or some portion of such payments and benefits
may be taxable under Section 4999 of the Code. If a reduction in payments and benefits constituting “parachute
payments” is necessary so that payments and benefits are delivered to a lesser extent under Section 8.0(b) hereof,
reduction shall occur in the following order: (i) reduction of cash severance payments (reduced from the latest
scheduled payments to the earliest scheduled payments); (ii) cancellation of any equity awards that are included
under Section 280G of the Code at full value rather than accelerated value (reduced from highest value to lowest
value under Section 280G of the Code and, if such values are the same, from latest to earliest scheduled vesting
dates); (iii) cancellation of the accelerated vesting of any equity awards included under Section 280G of the Code at
an accelerated value (and not at full value), which shall be reduced with the highest value reduced first (as such
values are determined under Treasury Regulation Section 1.280G-1, Q&A 24) (and if such values are the same, from
latest to earliest vesting dates); and (iv) reduction of any other non-cash benefits (including the value of the
accelerated payment of any cash payments), reduced in the order of highest to lowest value under Code Section 280G
(and if such values are the same, from latest to earliest payment dates); provided, in each case, that any such
reduction shall be made in a manner consistent with the requirements of Section 409A. Unless the Company and
Executive otherwise agree in writing, any determination required under this Section 8.0 will be made in writing by an
independent, nationally recognized accounting firm selected by the Company (the “Firm”), whose determination will
be conclusive and binding upon Executive and the Company for all purposes. For purposes of making the
calculations required by this Section 8.0, the Firm may make reasonable assumptions and approximations concerning
applicable taxes and may rely on reasonable, good faith interpretations concerning the application of Sections 280G
and 4999 of the Code. The Company and Executive will furnish to the Firm such information and documents as the
Firm may reasonably request in order to make a determination under this Section 8.0. The Company will bear all
costs the Firm may reasonably incur in connection with any calculations contemplated by this Section 8.0.

9.0.      Return of Property.

Executive agrees, upon the termination of his employment with the Company or upon the earlier written

request of the Company, to return to the Company all physical, computerized, electronic or other types of records,
documents, proposals, notes, lists, files and any and all other materials, including without limitation, computerized
and/or electronic information that refers, relates or otherwise pertains to the Company and/or its subsidiaries, and any
and all business dealings of said persons and entities. In addition, Executive shall return to the Company all property
and equipment that Executive has been issued during the course of his employment or which he otherwise then
possesses or has control over, including but not limited to, any computers, cellular phones, personal digital assistants,
pagers and/or similar items. Executive shall immediately deliver to the Company any such physical, computerized,
electronic or other types of records, documents, proposals, notes, lists, files, materials, property and equipment that
are in Executive’s possession or control. Executive further agrees that he will immediately forward to the Company
any business information regarding the Company and/or its subsidiaries that has been or is inadvertently directed to
Executive following his last day of employment with

15

the Company. The provisions of this Section 9.0 are in addition to any other written agreements on this subject that
Executive may have with the Company and/or its subsidiaries, and are not meant to and do not excuse any additional
obligations that Executive may have under such agreements.

10.0.    Notices.

For the purposes of this Employment Agreement, notices and all other communications provided for

hereunder shall be in writing and shall be deemed to have been duly given when personally delivered or sent by
certified mail, return receipt requested, postage prepaid, or by expedited (overnight) courier with established national
reputation, shipping prepaid or billed to sender, in either case addressed to the respective addresses last given by each
Party to the other (provided that all notices to the Company shall be directed to the attention of the CEO) or to such
other address as either Party may have furnished to the other in writing in accordance herewith. All notices and
communications shall be deemed to have been received on the date of delivery thereof, or on the second day after
deposit thereof with an expedited courier service, except that notice of change of address shall be effective only upon
receipt. Notices shall be addressed as follows:

If to the Company:
101 S. Capitol Blvd., Suite 1000
Boise, Idaho 83702

If to Executive:
As on file with the Company’s Corporate Secretary

11.0.    Life Insurance.

The Company may, at any time after the execution of this Employment Agreement, apply for and procure as

owner and for its own benefit, life insurance on Executive, in such amounts and in such form or forms as the
Company may determine. Executive shall, at the request of the Company, submit to such medical examinations,
supply such information, and execute such documents as may be required by the insurance company or companies to
whom the Company has applied for such insurance.

12.0.    Confidentiality.

Executive agrees not to disclose or reveal to any person or entity outside the Company or any of its
subsidiaries any confidential, trade secret, proprietary or other non-public information concerning the Company, any
of its subsidiaries or any of the businesses or operations of the Company or any of its subsidiaries (“Confidential
Information”), including all information relating to any Company or subsidiary product, process, equipment,
machinery, design, formula, business plan or strategy, or other activity without prior permission of the Company in
writing.

16

Confidential Information shall not include any information which is in the public domain or becomes publicly
known, in either case, through no wrongful act on the part of Executive or breach of this Employment Agreement.
Executive acknowledges that the Confidential Information is vital, sensitive, confidential and proprietary to the
Company or its subsidiaries. The obligation to protect the secrecy of such information continues after employment
with Company or any of its subsidiaries may be terminated. In furtherance of this agreement, Executive
acknowledges that all Confidential Information which Executive now possesses, or shall hereafter acquire,
concerning and pertaining to the business and secrets of the Company or any of its subsidiaries and all inventions or
discoveries made or developed, or suggested by or to Executive during said term of employment relating to the
Company’s or any of its subsidiaries’ business shall, at all times and for all purposes, be regarded as acquired and
held by Executive in his fiduciary capacity and solely for the benefit of the Company or any of its subsidiaries.

Pursuant to 18 U.S.C. § 1833(b), Executive understands that he will not be held criminally or civilly liable

under any federal or state trade secret law for the disclosure of a trade secret of the Company or any of its
subsidiaries that (i) is made (A) in confidence to a federal, state, or local government official, either directly or
indirectly, or to his attorney and (B) solely for the purpose of reporting or investigating a suspected violation of law;
or (ii) is made in a complaint or other document that is filed under seal in a lawsuit or other proceeding. Executive
understands that if he files a lawsuit for retaliation by the Company or any of its subsidiaries for reporting a
suspected violation of law, he may disclose the trade secret to his attorney and use the trade secret information in the
court proceeding if he (I) files any document containing the trade secret under seal, and (II) does not disclose the
trade secret, except pursuant to court order. Nothing in this Employment Agreement, or any other agreement that
Executive has with the Company, is intended to conflict with 18 U.S.C. § 1833(b) or create liability for disclosures
of trade secrets that are expressly allowed by such section. Further, nothing in this Employment Agreement or any
other agreement that Executive has with the Company or any of its affiliates shall prohibit or restrict him from
making any voluntary disclosure of information or documents concerning possible violations of law to any
governmental agency or legislative body, or any self-regulatory organization, in each case, without advance notice to
the Company.

13.0.    Work Product Assignment.

Executive agrees that all inventions, innovations, discoveries, improvements, technical information, systems,

software developments, methods, designs, analyses, data, drawings, reports, works of authorship, service marks,
trademarks, trade names, logos and all similar or related information or developments (whether patentable or
unpatentable) which relate to the actual or anticipated business, research and development or existing or future
products or services of the Company or of any of its subsidiaries or affiliates, and which are conceived, developed or
made by Executive (whether or not during usual business hours and whether or not alone or in conjunction with any
other person) while employed by the Company, together with all patent applications, letters patent, trademark, trade
name and service mark applications or registrations, copyrights and reissues thereof that may be granted for or upon
any of the foregoing and any other intellectual property right or other proprietary rights in any of the foregoing
(collectively referred to herein as the “Work Product”), are in all instances the exclusive property of the Company,
and Executive hereby irrevocably assigns to the Company

17

all Work Product and all of his interest therein, including all rights to claim and recover damages and/or injunctive
relief for past, present, and future infringement or violation of any Work Product. Executive agrees to promptly make
full written disclosure to the Company of any and all Work Product. Executive will promptly perform all actions
reasonably requested by the Board (whether during or after his employment with the Company) to establish and
confirm the ownership of such Work Product (including, without limitation, the execution and delivery of
assignments, consents, powers of attorney and other instruments) by the Company or its subsidiaries or affiliates, as
applicable, and to provide reasonable assistance to the Company or any of its subsidiaries and affiliates in connection
with the prosecution of any applications for patents, trademarks, trade names, service marks or reissues thereof or
other intellectual property rights, or in the prosecution, maintenance, enforcement and defense of any intellectual
property rights or other proprietary rights in any Work Product. Without limiting the foregoing, Executive hereby
irrevocably designates and appoints the Company and its duly authorized officers and agents as Executive’s agent
and attorney-in-fact, to act for and on Executive’s behalf to execute and file any such application or applications or
other documents and to do all other lawfully permitted acts to further the prosecution and issuance of letters patent,
copyright or trademark registrations or any other legal protection thereon with the same legal force and effect as if
executed by Executive.

14.0.    Covenant Not to Compete, Not to Solicit and Not to Disparage.

Section 14.01. Acknowledgment of Executive. Executive acknowledges that his employment with the

Company has special, unique and extraordinary value to the Company; that the Company has a lawful interest in
protecting its investment in entrusting its Confidential Information to him; that the Company would be irreparably
damaged if Executive were to provide services to any person or entity in violation of this Employment Agreement;
that in performing such services Executive would inevitably disclose the Company’s Confidential Information to
third parties; and that the restrictions, prohibitions and other provisions of this Section 14.0 are reasonable, fair and
equitable in scope, terms, and duration to protect the legitimate business interests of the Company, and are a material
inducement to the Company to enter into this Employment Agreement.

Section 14.02. Non-Competition Covenant. Without the consent in writing of the Board, Executive

will not, during Executive’s employment with the Company and (i) for a period of 18 months after a termination of
employment by the Company without Cause, including for non-renewal of the Employment Term, or by Executive
for Good Reason or (ii) for a period of 12 months after a termination of employment by Executive without Good
Reason, acting alone or in conjunction with others, directly or indirectly engage anywhere in the United States or any
other country in which the Company conducts business (either as owner, investor, partner, stockholder, employer,
employee, consultant, advisor or director) in activities on behalf of any person or entity that provides environmental
or industrial products or services that are in competition with any products or services provided by the Company or
any of its subsidiaries or that the Company or any of its subsidiaries had plans to provide as of the termination of
Executive’s employment. It is agreed that the ownership of not more than five percent (5%) of the equity securities
of any company having securities listed on an exchange or regularly traded in the over-the-counter market shall not,
of itself, be deemed inconsistent with this Section 14.02.

18

Section 14.03. Non-Solicitation of Customers and Prospective Customers. Without the consent in

writing of the Board, Executive will not, during Executive’s employment with the Company and (i) for a period of
18 months after a termination of employment by the Company without Cause, including for non-renewal of the
Employment Term, or by Executive for Good Reason or (ii) for a period of 12 months after a termination of
employment by Executive without Good Reason, acting alone or in conjunction with others, either directly or
indirectly, solicit, encourage or induce, or attempt to solicit, encourage or induce, any customer or prospective
customer of the Company or any of its subsidiaries to curtail or cancel its business with the Company or any of its
subsidiaries.

Section 14.04. Non-Solicitation of Employees. Without the consent in writing of the Board, Executive

will not, during Executive’s employment with the Company and (i) for a period of 18 months after a termination of
employment if the Company without Cause, including for non-renewal of the Employment Term, or by Executive for
Good Reason or (ii) for a period of 12 months after a termination of employment by Executive without Good
Reason, acting alone or in conjunction with others, either directly or indirectly, solicit, encourage or induce, or
attempt to solicit, encourage or induce, any employee of the Company or any of its subsidiaries to terminate his or
her employment.

Section 14.05. Non-Disparagement. Executive agrees that during Executive’s employment with the
Company and at all times thereafter, Executive shall not directly or indirectly through any other person, make any
statements (whether orally, in writing, on social media or otherwise) that disparage, denigrate or malign any of the
Company, its affiliates or any of their respective businesses, activities, operations or reputations or any of their
respective directors, managers, officers, employees, representatives or more than 1% stockholders. The Company
shall not permit any member of the Board to, or authorize or direct any employee of the Company to, make any
public statements (whether orally, in writing, on social media or otherwise) that disparage, denigrate or malign
Executive. For purposes of clarification, and not limitation, a statement shall be deemed to disparage, denigrate or
malign a person if such statement could be reasonably construed to adversely affect the opinion any other person
may have or form of such first person. The foregoing limitations shall not be violated by truthful statements made (i)
to any governmental authority, (ii) which such person believes, based on the advice of counsel, are in response to
legal process, required governmental testimony or filings, or administrative or arbitral proceedings (including,
without limitation, depositions in connection with such proceedings), (iii) in good faith in connection with any
employment (or similar) performance or similar review or (iv) as necessary to defend or prosecute a claim or
allegation.

15.0.    Remedies.

Section 15.01. Specific Performance; Costs of Enforcement. Executive acknowledges that the

covenants and agreements which he has made in this Employment Agreement are reasonable and are required for the
reasonable protection of the Company, its subsidiaries and their respective businesses. Executive agrees that the
breach of any covenant or agreement contained herein will result in irreparable injury to the Company and/or its
subsidiaries, and that, in addition to all other remedies provided by law or in equity with respect to the breach of any
provision of this Employment Agreement, the Company, its subsidiaries and

19

each of their respective successors and assigns will be entitled to enforce the specific performance by Executive of
his obligations hereunder and to enjoin him from engaging in any activity in violation hereof and that no claim by
Executive against the Company, any of its subsidiaries or any of their respective successors or assigns will constitute
a defense or bar to the specific enforcement of such obligations. Executive agrees that the Company, its subsidiaries
and each of their respective successors and assigns shall be entitled to recover all costs of enforcing any provision of
this Employment Agreement, including, without limitation, reasonable attorneys’ fees and costs of litigation. In the
event of a breach by Executive of any covenant or agreement contained in Section 14.0 (other than Section 14.05),
the running of the restrictive covenant periods (but not of Executive’s obligations thereunder) shall be tolled during
the period of the continuance of any actual breach or violation.

Section 15.02. Additional Remedies for Breach of Restrictive Covenants. The provisions of Section

12.0, Section 13.0, and Section 14.0 (collectively, the “Restrictive Covenants”) are separate and distinct
commitments independent of each of the other Sections. Accordingly, notwithstanding any other provision of this
Employment Agreement, Executive agrees that damages in the event of a breach or a threatened breach by Executive
of Section 12.0, Section 13.0 and/or Section 14.0 would be difficult if not impossible to ascertain and an inadequate
remedy, and it is therefore agreed that the Company, in addition to and without limiting any other remedy or right it
may have, shall have the right to an immediate injunction or other equitable relief enjoining any such threatened or
actual breach, without any requirement to post bond or provide similar security or to prove actual damages. The
existence of this right shall not preclude the Company from pursuing any other rights and remedies at law or in
equity that the Company may have, including recovery of damages for any breach of such Sections.

Section 15.03. Right to Cancel Payments.

(a)        In addition to the remedies set forth above in Sections 15.01 and 15.02, the Company may, at

the sole discretion of the Board, cancel, rescind or reduce the Severance Payment and the other payments and
benefits under Sections 4.02 and 4.04 (other than the Accrued Obligations), whether vested or not, at any time, if
Executive is not in compliance with all of the provisions of Section 12.0, Section 13.0 and Section 14.0.

(b)        As a condition to the receipt of any payment or benefit under Sections 4.02 and 4.04 (other
than the Accrued Obligations), Executive shall certify to the Company that he is in compliance with the provisions
set forth above.

(c)        In the event that the Company has rescinded any payments or benefits under Sections 4.02 and

4.04 pursuant to Section 15.03(a) at the time of Executive’s alleged breach and the arbitrator determines that
Executive has failed to comply with the provisions set forth in Section 12.0, Section 13.0 and/or Section 14.0, as
finally determined by binding arbitration pursuant to Section 16.0, Executive shall pay to the Company, within 12
months of the Company’s rescission of one or more such payments or benefits, the amount of any such payment(s) or
benefit(s) received as a result of the rescinded payment(s) or benefit(s), without interest, in such further manner and
on such further terms and conditions as may be required by the Company; and the Company shall be entitled to set-
off against the amount of such payment

20

or benefit any amount owed to Executive by the Company or any of its subsidiaries (if permitted by Section 409A),
other than wages.

(d)        Executive acknowledges that the foregoing provisions are fair, equitable and reasonable for

the protection of the Company’s interests in a stable workforce and the time and expense the Company has incurred
to develop its business and its customer and vendor relationships.

(e)        Notwithstanding the foregoing or anything contained herein to the contrary, this Section 15.03
shall not apply to any payments or benefits owed to Executive in the event of a termination of employment described
in Section 5.0.

16.0.    Dispute Resolution; WAIVER OF JURY TRIAL.

Except for claims to enforce or otherwise relating to the Restrictive Covenants, including any claim for

injunctive, declaratory or other equitable relief, which remedies may be sought in any court of competent
jurisdiction:

Section 16.01. Initial Negotiations. The Company and Executive agree to resolve all disputes arising

out of their employment relationship by the following alternative dispute resolution process: (a) the Company and
Executive agree to seek a fair and prompt negotiated resolution; but if this is not possible, (b) all disputes shall be
resolved by binding arbitration; provided, however, that during this process, at the request of either Party, made not
later than 60 days after the initial arbitration demand, the Parties agree to attempt to resolve any dispute by non-
binding, third-party intervention, including either mediation or evaluation or both but without delaying the arbitration
hearing date. BY ENTERING INTO THIS EMPLOYMENT AGREEMENT, BOTH PARTIES GIVE UP
THEIR RIGHT TO HAVE THE DISPUTE DECIDED IN COURT BY A JUDGE OR JURY.

Section 16.02. Mandatory Arbitration. Any controversy or claim arising out of or connected with

Executive’s employment or service with the Company or any of its affiliates or the termination thereof, including but
not limited to claims for compensation or severance and claims of wrongful termination, age, sex or other
discrimination or civil rights shall be decided by arbitration. In the event the Parties cannot agree on an arbitrator,
then the arbitrator shall be selected by the administrator of the American Arbitration Association (“AAA”) office in
Salt Lake City, Utah. The arbitrator shall be an attorney with at least 15 years’ experience in employment law in
Idaho. Boise, Idaho shall be the site of the arbitration. All statutes of limitation, which would otherwise be
applicable, shall apply to any arbitration proceeding hereunder. Any issue about whether a controversy or claim is
covered by this Employment Agreement shall be determined by the arbitrator.

Section 16.03. Arbitration Rules.

(a)        The arbitration shall be conducted in accordance with this Employment Agreement, using as
appropriate the AAA Employment Arbitration Rules and Mediation Procedures then-in-effect. The arbitrator shall
not be bound by the rules of evidence or of civil

21

procedure, but rather may consider such writings and oral presentations as reasonable business people would use in
the conduct of their day-to-day affairs, and may require both Parties to submit some or all of their respective cases by
written declaration or such other manner of presentation as the arbitrator may determine to be appropriate. The
Parties agree to limit live testimony and cross-examination to the extent necessary to ensure a fair hearing on
material issues.

(b)        The arbitrator shall take such steps as may be necessary to hold a private hearing within 120

days after the initial request for arbitration; and the arbitrator’s written decision shall be made not later than 14
calendar days after the hearing. The Parties agree that they have included these time limits in order to expedite the
proceeding, but they are not jurisdictional, and the arbitrator may for good cause allow reasonable extensions or
delays, which shall not affect the validity of the award. Both written discovery and depositions shall be allowed. The
extent of such discovery will be determined by the Parties and any disagreements concerning the scope and extent of
discovery shall be resolved by the arbitrator. The written decision shall contain a brief statement of the claim(s)
determined and the award made on each claim. In making the decision and award, the arbitrator shall apply
applicable substantive law. The arbitrator may award injunctive relief or any other remedy available from a judge,
including consolidation of this arbitration with any other involving common issues of law or fact which may promote
judicial economy, and shall award attorneys’ fees and costs to the prevailing Party in accordance with Section 17.0,
but shall not have the power to award punitive or exemplary damages except where expressly authorized by statute.
The Parties specifically state that the agreement to limit damages was agreed to by the Parties after negotiations.

17.0.    Attorneys’ Fees.

Section 17.01. Prevailing Party Entitled to Attorneys’ Fees. In any action at law or in equity, or in

arbitration, to enforce any of the provisions or rights under this Employment Agreement, the prevailing Party to such
litigation, as determined by the arbitrator in accordance with the dispute resolution provisions set forth above, shall
be entitled to recover from the unsuccessful Party all costs, expenses and reasonable attorneys’ fees incurred therein
by such prevailing Party (including, without limitation, such costs, expenses and fees on appeal), excluding,
however, any time spent by Company employees, including in-house legal counsel, and if such prevailing Party shall
recover judgment in any such action or proceeding, such costs, expenses and attorneys’ fees shall be included as part
of such judgment; provided that nothing herein shall limit Executive’s right to recover Executive’s full attorney’s
fees and costs in accordance with any statute authorizing an award of such fees and costs.

Section 17.02. Limitation on Fees. Notwithstanding the foregoing provision, in no event shall the

prevailing Party be entitled to recover an amount from the unsuccessful Party for costs, expenses and attorneys’ fees
that exceeds the unsuccessful Party’s costs, expenses and attorneys’ fees in connection with the action or proceeding.

22

18.0.    Miscellaneous Provisions.

Section 18.01. Prior Employment Agreements. Executive represents and warrants that Executive’s

performance of all the terms of this Employment Agreement and as an executive of the Company does not, and will
not, breach any employment agreement, arrangement or understanding or any agreement, arrangement or
understanding to keep in confidence proprietary information acquired by Executive in confidence or in trust prior to
Executive’s employment by the Company. Executive has not entered into, and shall not enter into, any agreement,
arrangement or understanding, either written or oral, which is in conflict with this Employment Agreement or which
would be violated by Executive entering into, or carrying out his obligations under, this Employment Agreement.
This Employment Agreement supersedes any former oral agreement and any former written agreement heretofore
executed relating generally to the employment of Executive with the Company, including without limitation, the
Prior Agreement.

Section 18.02. Cooperation. During and after Executive’s employment, Executive agrees to cooperate

with the Company or any of its subsidiaries in any internal investigation, any administrative, regulatory, or judicial
proceeding or any dispute with a third party concerning issues about which Executive has knowledge. Executive’s
cooperation may include, without limitation, being available to the Company or any of its subsidiaries upon
reasonable notice for interviews and factual investigations, appearing at the Company’s or any of its subsidiaries’
request to give testimony without requiring service of a subpoena or other legal process, volunteering to the
Company or any of its subsidiaries pertinent information, and turning over to the Company or any of its subsidiaries
all relevant documents which are or may come into Executive’s possession. The Company shall take into account
Executive’s other obligations in the case of any cooperation requested after the Termination Date. The Company
shall promptly reimburse Executive for the reasonable expenses and costs incurred by him in connection with such
cooperation to the extent approved in advance in writing by the Company, and, if any such cooperation is provided
after the Termination Date at a time when Executive is not receiving any severance payments under this Employment
Agreement, shall compensate Executive for Executive’s time in providing such cooperation at Executive’s hourly
Base Salary rate (based on an eight (8) hour work day) as in effect on the Termination Date (provided that no such
compensation shall be paid with respect to Executive’s testimony as a witness). For the avoidance of doubt, the
immediately preceding sentence shall not require the Company to reimburse Executive for any attorneys’ fees or
related costs Executive may incur absent advance written approval by the Company.

Section 18.03. Assignment; Binding Effect. This Employment Agreement may be assigned in whole or
in part by the Company or its successors, but may not be assigned by Executive in whole or in part. Notwithstanding
the foregoing, this Employment Agreement shall inure to the benefit of and be enforceable by Executive’s personal
representatives, executors, administrators, successors, heirs, distributees, devisees and legatees. If Executive should
die while any amounts under this Employment Agreement are owed to him based on events occurring on or prior to
such death, all such amounts, unless otherwise provided herein, shall be paid in accordance with the terms of this
Employment Agreement to Executive’s estate.

23

Section 18.04. Headings. Headings used in this Employment Agreement are for convenience only and

shall not be used to interpret or construe its provisions.

Section 18.05. Waiver. No provision of this Employment Agreement may be waived or discharged
unless such waiver or discharge is agreed to in writing and signed by the Company and Executive. No waiver by
either Party hereto at any time of any breach by the other Party hereto of, or compliance with, any condition or
provision of this Employment Agreement to be performed by such other Party shall be deemed a waiver of similar or
dissimilar provisions or conditions at the same or at any prior or subsequent time.

Section 18.06. Amendments. No amendments or variations of the terms and conditions of this

Employment Agreement shall be valid unless the same is in writing and signed by the Parties hereto.

Section 18.07. Severability. The invalidity or unenforceability of any provision of this Employment
Agreement, whether in whole or in part, shall not in any way affect the validity and/or enforceability of any other
provision contained herein. Any invalid or unenforceable provision shall be deemed severable to the extent of any
such invalidity or unenforceability. It is expressly understood and agreed that while the Company and Executive
consider the restrictions contained in this Employment Agreement reasonable for the purpose of preserving for the
Company the goodwill, other proprietary rights and intangible business value of the Company, if a final judicial
determination is made by a court having jurisdiction that the time or territory or any other restriction contained in this
Employment Agreement is an unreasonable or otherwise unenforceable restriction against Executive, the provisions
of such clause shall not be rendered void but shall be deemed amended to apply as to maximum time and territory
and to such other extent as such court may judicially determine or indicate to be reasonable.

Section 18.08. Governing Law. This Employment Agreement shall be construed and enforced

pursuant to the laws of the State of Idaho, applied without reference to principles of conflicts of law.

Section 18.09. Executive Officer Status. Executive acknowledges that he may be deemed to be an

“executive officer” of the Company for purposes of the Securities Act of 1933, as amended (the “1933 Act”), and the
1934 Act and, if so, he shall comply in all respects with all the rules and regulations under the 1933 Act and the 1934
Act applicable to him in a timely and non-delinquent manner. In order to assist the Company in complying with its
obligations under the 1933 Act and 1934 Act, Executive shall provide to the Company such information about
Executive as the Company shall reasonably request including, but not limited to, information relating to personal
history and stockholdings. Executive shall report to the Secretary of the Company or other designated officer of the
Company all changes in beneficial ownership of any shares of the Company’s Common Stock deemed to be
beneficially owned by Executive and/or any members of Executive’s immediate family. Executive further agrees to
comply with all requirements placed on him by the Sarbanes-Oxley Act of 2002, Public Law 107-204.

Section 18.10. Tax Withholding. To the extent required by law, the Company shall deduct or withhold

from any payments under this Employment Agreement all applicable federal,

24

state and local income taxes, Social Security, Medicare, unemployment tax and other amounts that the Company
determines in good faith are required by law to be withheld.

Section 18.11. Counterparts. This Employment Agreement may be executed in one or more

counterparts, each of which shall be deemed to be an original, but all of which together shall constitute but one
document.

Section 18.12. Retention of Counsel. Executive acknowledges that he has had the opportunity to

review this Employment Agreement and the transactions contemplated hereby with his own legal counsel.

[The remainder of this page intentionally left blank]

25

IN WITNESS WHEREOF, this Employment Agreement has been duly executed by the Company and

Executive as of the date first above written.

EXECUTIVE:

/s/ Andrew P. Marshall
ANDREW P. MARSHALL

COMPANY:

US ECOLOGY, INC.

/s/ Jeffrey R. Feeler

By:
Name:Jeffrey R. Feeler
Title: PRESIDENT AND CHIEF EXECUTIVE

OFFICER

Exhibit 21

List of Subsidiaries

Subsidiary Name
American Ecology Environmental Services Corp.
CRN Denizcliik Anonim Sirketi /aka/ CRN Martime S.A.
Eagle Construction and Environmental Services, LLC
ENPRO Holdings Group, Inc.
ENPRO Services of Vermont, Inc.
Envirite of Illinois, Inc.
Envirite of Ohio, Inc.
Envirite of Pennsylvania, Inc.
Envirite Transportation, LLC
Environmental Services Inc.
EQ de Mexico, Inc.
EQ Detroit, Inc.
EQ Holdings, Inc.
EQ Industrial Services, Inc.
EQ Metals Recovery, LLC
EQ Northeast, Inc.
EQ Parent Company, Inc.
JFL-NRC Holdings, LLC
Michigan Disposal, Inc.
National Response Corporation
National Response Corporation (Angola) LDA
National Response Corporation (NRC) Environmental Services
UAE L LC
National Response Corporation Aruba
National Response Corporation Mexico NRC
National Response Corporation of Puerto Rico
NRC (Asia Pacific) LTD.
NRC (B.V.I.) Ltd.
NRC (East Africa) Limited
NRC (Egypt) LLC
NRC (Malta) Limited
NRC (West Africa) LLC
NRC Alaska, LLC
NRC East Environmental Services, Inc.
NRC Eastern Mediterranean Ltd.
NRC Environmental of Maine, Inc.
NRC Environmental Protection Waste Management &
Remediation Services AS
NRC Environmental Services (UK) Limited
NRC Environmental Services, Inc.
NRC Group Holdings Corp.
NRC Group Holdings, LLC
NRC Gulf Environmental Services, Inc.
NRC Intermediate Int. Holding Company, LLC
NRC Int. Holding Company, LLC
NRC International Services, Ltd.
NRC Kazakhstan LLP
NRC NY Environmental Services, Inc.
NRC Payroll Management LLC
NRC Servicing Limited
NRC (Trinidad and Tobago) Ltd.
NRC US Holding Company, LLC

State of Formation
Texas
Turkey
Delaware
Massachusetts
Maine
Delaware
Delaware
Delaware
Ohio
Ontario
Mexico
Michigan
Delaware
Michigan
Ohio
Massachusetts
Delaware
Delaware
Michigan
Delaware
Angola
United Arab Emirates

Aruba
Mexico
Delaware
Thailand
British Virgin Islands
Uganda
Egypt
Marshall Islands
Marshall Islands
Delaware
Massachusetts
Israel
Maine
Turkey

Scotland
Washington
Delaware
Delaware
Delaware
Delaware
Marshall Islands
Marshall Islands
Kazakhstan
Delaware
Delaware
United Kingdom
Trinidad
Delaware

Exhibit 21

NRC WWS LTD
OP-TECH Avix, Inc.
OSRV Holdings, Inc.
Quail Run Services, LLC
RTF Romulus, LLC
SES-Haztec Servicos De Reposta A Emrgencias S.A.
South Atlantic Response S.A.
Southern Waste Services, Inc.
Specialized Response Solutions (Canada) Inc.
Specialized Response Solutions, L.P.
Stablex Canada Inc.
Sureclean A.S.
Sureclean Holdco Limited
TMC Services, Inc.
US Ecology Energy Waste Disposal Services, LLC
US Ecology Holdings, Inc.
US Ecology Houston, Inc.
US Ecology Idaho, Inc.
US Ecology Illinois, Inc.
US Ecology Karnes County Disposal, LLC
US Ecology Livonia, Inc.
US Ecology Michigan, Inc.
US Ecology Nevada, Inc.
US Ecology Romulus, Inc.
US Ecology Stablex Holdings, Inc.
US Ecology Sulligent, Inc.
US Ecology Tampa, Inc.
US Ecology Taylor, Inc.
US Ecology Texas, Inc.
US Ecology Thermal Services, Inc.
US Ecology Transportation Solutions, Inc.
US Ecology Tulsa, Inc.
US Ecology Vernon, Inc.
US Ecology Washington, Inc.
US Ecology Winnie, LLC
USE Canada Holdings Inc.
USE EWD Holdco, LLC
Venezuelan Response Corporation
W.I.S.E. Environmental Solutions Inc.
Waste Repurposing International, Inc.
Wayne Disposal, Inc.

United Kingdom
New York
Delaware
Texas
Michigan
Brazil
Argentina
Florida
Alberta
Texas
Canada
Norway
United Kingdom
Massachusetts
Delaware
Delaware
Delaware
Delaware
California
Texas
Michigan
Michigan
Delaware
Michigan
Delaware
Michigan
Michigan
Michigan
Delaware
Delaware
Delaware
Michigan
Delaware
Delaware
Delaware
Canada
Delaware
Venezuela
Ontario
Delaware
Michigan

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-235835 and 333-234424 on Form S-8,
Registration Statement No. 333-235824 on Form S-3, and Registration Statement No. 333-232930 on Form S-4, of our report
dated February 26, 2021, relating to the consolidated financial statements of US Ecology Inc. and the effectiveness of US
Ecology Inc.’s internal control over financial reporting, appearing in this Annual Report on Form 10-K of US Ecology Inc. for
the year ended December 31, 2020.

Exhibit 23.1

/s/ DELOITTE & TOUCHE LLP

Boise, Idaho
February 26, 2021

Exhibit 31.1

I, Jeffrey R. Feeler, certify that:

1.

2.

3.

4.

I have reviewed this annual report on Form 10-K of US Ecology, Inc.;

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material
fact necessary to make the statements made, in light of the circumstances under which such statements were made, not
misleading with respect to the period covered by this report;

Based on my knowledge, the financial statements, and other financial information included in this report, fairly present
in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the
periods presented in this report;

The registrant’s  other  certifying  officer  and I are responsible  for establishing  and maintaining  disclosure  controls  and
procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as
defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)

b)

c)

d)

Designed  such  disclosure  controls  and  procedures,  or  caused  such  disclosure  controls  and  procedures  to  be
designed  under  our  supervision,  to  ensure  that  material  information  relating  to  the  registrant,  including  its
consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in
which this report is being prepared;

Designed such internal control over financial reporting, or caused such internal control over financial reporting
to  be  designed  under  our  supervision,  to  provide  reasonable  assurance  regarding  the  reliability  of  financial
reporting  and  the  preparation  of  financial  statements  for  external  purposes  in  accordance  with  generally
accepted accounting principles;

Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report
our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period
covered by this report based on such evaluation; and

Disclosed  in  this  report  any  change  in  the  registrant’s  internal  control  over  financial  reporting  that  occurred
during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual
report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control
over financial reporting; and

5.

The  registrant’s  other  certifying  officer  and  I  have  disclosed,  based  on  our  most  recent  evaluation  of  internal  control
over  financial  reporting,  to  the  registrant’s  auditors  and  the  audit  committee  of  the  registrant’s  board  of  directors  (or
persons performing the equivalent functions):

a)

b)

All significant deficiencies and material weaknesses in the design or operation of internal control over financial
reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize
and report financial information; and

Any fraud, whether or not material, that involves management or other employees who have a significant role
in the registrant’s internal control over financial reporting.

/s/ JEFFREY R. FEELER
President and Chief Executive Officer

February 26, 2021

Exhibit 31.2

I, Eric L. Gerratt, certify that:

1.

2.

3.

4.

I have reviewed this annual report on Form 10-K of US Ecology, Inc.;

Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material
fact necessary to make the statements made, in light of the circumstances under which such statements were made, not
misleading with respect to the period covered by this report;

Based on my knowledge, the financial statements, and other financial information included in this report, fairly present
in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the
periods presented in this report;

The registrant’s  other  certifying  officer  and I are responsible  for establishing  and maintaining  disclosure  controls  and
procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as
defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)

b)

c)

d)

Designed  such  disclosure  controls  and  procedures,  or  caused  such  disclosure  controls  and  procedures  to  be
designed  under  our  supervision,  to  ensure  that  material  information  relating  to  the  registrant,  including  its
consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in
which this report is being prepared;

Designed such internal control over financial reporting, or caused such internal control over financial reporting
to  be  designed  under  our  supervision,  to  provide  reasonable  assurance  regarding  the  reliability  of  financial
reporting  and  the  preparation  of  financial  statements  for  external  purposes  in  accordance  with  generally
accepted accounting principles;

Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report
our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period
covered by this report based on such evaluation; and

Disclosed  in  this  report  any  change  in  the  registrant's  internal  control  over  financial  reporting  that  occurred
during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual
report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control
over financial reporting; and

5.

The  registrant’s  other  certifying  officer  and  I  have  disclosed,  based  on  our  most  recent  evaluation  of  internal  control
over  financial  reporting,  to  the  registrant’s  auditors  and  the  audit  committee  of  the  registrant’s  board  of  directors  (or
persons performing the equivalent functions):

a)

b)

All significant deficiencies and material weaknesses in the design or operation of internal control over financial
reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize
and report financial information; and

Any fraud, whether or not material, that involves management or other employees who have a significant role
in the registrant’s internal control over financial reporting.

/s/ ERIC L. GERRATT
Executive Vice President, Chief Financial Officer
and Treasurer

February 26, 2021

Written Statement of the Chief Executive Officer
Pursuant to 18 U.S.C. §1350

Solely for the purposes of complying with 18 U.S.C. §1350, I, the undersigned Chief Executive Officer of US Ecology, Inc., (the
“Company”),  hereby  certify,  that  to  my  knowledge,  the  Annual  Report  on  Form  10-K  of  the  Company  for  the  period  ended
December 31, 2020 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act
of 1934 and that information contained in the Report fairly presents, in all material respects, the financial condition and results of
operations of the Company as of the dates hereof and for the periods expressed in this Report.

Exhibit 32.1

/s/ JEFFREY R. FEELER
President and Chief Executive Officer

February 26, 2021

Written Statement of the Chief Financial Officer
Pursuant to 18 U.S.C. §1350

Solely for the purposes of complying with 18 U.S.C. §1350, I, the undersigned Chief Financial Officer of US Ecology, Inc., (the
“Company”),  hereby  certify,  that  to  my  knowledge,  the  Annual  Report  on  Form  10-K  of  the  Company  for  the  period  ended
December 31, 2020 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act
of 1934 and that information contained in the Report fairly presents, in all material respects, the financial condition and results of
operations of the Company as of the dates hereof and for the periods expressed in this Report.

Exhibit 32.2

/s/ ERIC L. GERRATT
Executive Vice President, Chief Financial Officer
and Treasurer

February 26, 2021