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IPG Photonics

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

(Mark One)
☑ 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: 001-33155

IPG PHOTONICS CORPORATION
(Exact name of registrant as specified in its charter)

Delaware
(State or other jurisdiction of
incorporation or organization)
50 Old Webster Road, Oxford, Massachusetts
(Address of principal executive offices)

04-3444218
(IRS Employer
Identification No.)
01540
(Zip Code)

Registrant's telephone number, including area code: (508) 373-1100

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

Title of Class
Common Stock, Par Value $0.0001 per share

Trading Symbol
IPGP

Name of Exchange on Which Registered
The Nasdaq Stock Market LLC

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, a smaller reporting company or emerging growth company.
See 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 
Non-accelerated filer

☑
☐

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 common stock held by non-affiliates of the registrant was approximately $5.7 billion, calculated based upon the closing price as
reported by the Nasdaq Global Select Market on June 30, 2020. For purposes of this disclosure, shares of common stock held by persons who own 5% or more of the outstanding
common stock and shares of common stock held by each officer and director have been excluded in that such persons may be deemed to be "affiliates" as that term is defined
under the Rules and Regulations of the Exchange Act. This determination of affiliate status is not necessarily conclusive.

As of February 19, 2021, 53,533,592 shares of the registrant's common stock were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE
Portions of the registrant's Proxy Statement for its 2021 Annual Meeting of Stockholders to be filed pursuant to Regulation 14A within 120 days of the end of the registrant's
fiscal year ended December 31, 2020 are incorporated by reference into Part III of this Annual Report on Form 10-K to the extent stated herein.

 
 
 
Table of Contents

ITEM 1.
ITEM 1A.
ITEM 1B.
ITEM 2.
ITEM 3.
ITEM 4.

ITEM 5.

ITEM 6.
ITEM 7.

ITEM 7A.
ITEM 8.
ITEM 9.

ITEM 9A.
ITEM 9B.

ITEM 10.
ITEM 11.
ITEM 12.

ITEM 13.
ITEM 14.

BUSINESS
RISK FACTORS
UNRESOLVED STAFF COMMENTS
PROPERTIES
LEGAL PROCEEDINGS
MINE SAFETY DISCLOSURES

TABLE OF CONTENTS

PART I

PART II

MARKET FOR REGISTRANT'S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER
PURCHASES OF EQUITY SECURITIES
RESERVED
MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
OPERATIONS
QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL
DISCLOSURE
CONTROLS AND PROCEDURES
OTHER INFORMATION

PART III

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

ITEM 15.
ITEM 16.

EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
FORM 10-K SUMMARY

PART IV

SIGNATURES

INDEX TO FINANCIAL STATEMENTS

1

3
14
29
29
29
29

30
31

31
44
45

45
45
47

47
47

47
47
47

48
50

51

F-1

 
Table of Contents

This Annual Report on Form 10-K contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended,
and Section 21E of the Securities Exchange Act of 1934, as amended, and we intend that such forward-looking statements be subject to the safe harbors created
thereby. For this purpose, any statements contained in this Annual Report on Form 10-K except for historical information are forward-looking statements. Without
limiting  the  generality  of  the  foregoing,  words  such  as  "may,"  "will,"  "expect,"  "believe,"  "anticipate,"  "intend,"  "target,"  "project,"  "intend,"  "plan,"  "seek,"
"strive,"  endeavor,"  goal,"  "could,"  "estimate,"  or  "continue"  or  the  negative  or  other  variations  thereof  or  comparable  terminology  are  intended  to  identify
forward-looking  statements.  In  addition,  any  statements  that  refer  to  projections  of  our  future  financial  performance,  trends  in  our  businesses,  or  other
characterizations of future events or circumstances are forward-looking statements.

The forward-looking statements included herein are based on current expectations of our management based on available information and involve a number
of risks and uncertainties, all of which are difficult or impossible to accurately predict and many of which are beyond our control. As such, our actual results may
differ significantly from those expressed in any forward-looking statements. Factors that may cause or contribute to such differences include, but are not limited to,
those discussed in more detail in Item 1 (Business) and Item 1A (Risk Factors) of Part I and Item 7 (Management's Discussion and Analysis of Financial Condition
and Results of Operations) of Part II of this Annual Report on Form 10-K. Readers should carefully review these risks, as well as the additional risks described in
other documents we file from time to time with the Securities and Exchange Commission (the "SEC"). In light of the significant risks and uncertainties inherent in
the forward-looking information included herein, the inclusion of such information should not be regarded as a representation by us or any other person that such
results will be achieved, and readers are cautioned not to rely on such forward-looking information. We undertake no obligation to revise the forward-looking
statements contained herein to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

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Table of Contents

ITEM 1.    BUSINESS

Our Company

PART I

IPG Photonics Corporation ("IPG", the "Company", the "Registrant", "we", "us" or "our") develops, manufactures and sells high-performance fiber lasers,
fiber  amplifiers  and  diode  lasers  that  are  used  for  diverse  applications,  primarily  in  materials  processing.  Fiber  lasers  are  a  type  of  laser  that  combine  the
advantages  of  semiconductor  diodes,  such  as  long  life  and  high  efficiency,  with  the  high  amplification  and  precise  beam  qualities  of  specialty  optical  fibers  to
deliver superior performance, reliability and usability.

Our  portfolio  of  laser  solutions  are  used  in  materials  processing,  communications,  medical  and  advanced  applications.  We  sell  our  products  globally  to
original equipment manufacturers ("OEMs"), system integrators and end users. We market our products internationally, primarily through our direct sales force.
Our  major  manufacturing  facilities  are  located  in  the  United  States,  Germany,  Russia  and  Belarus.  We  have  sales  service  offices  and  applications  laboratories
worldwide.

We are vertically integrated. We design and manufacture most of the key components used in our finished products, from semiconductor diodes to optical
fiber preforms, finished fiber lasers and amplifiers. We manufacture complementary products used with our lasers including optical delivery cables, fiber couplers,
beam switches, optical processing heads, in-line sensors and chillers. We offer laser-based and non-laser based systems for certain markets and applications. Our
vertically integrated operations allow us to reduce manufacturing costs, control quality, rapidly develop and integrate advanced products and protect our proprietary
technology.

We  are  listed  on  the  Nasdaq  Global  Select  Market  (ticker:  IPGP).  We  began  operations  in  1990,  and  we  were  incorporated  in  Delaware  in  1998.  Our

principal executive offices are located at 50 Old Webster Road, Oxford, Massachusetts 01540, and our telephone number is (508) 373-1100.

Industry Overview

Laser  technology  has  revolutionized  a  broad  range  of  applications  and  products  in  manufacturing,  automotive,  aerospace,  medical,  research,  consumer
electronics,  semiconductors  and  communications.  A  laser  converts  electrical  energy  to  optical  energy  that  can  be  focused  and  shaped,  creating  a  powerful,
concentrated beam that causes materials to melt, vaporize or change their character. In a laser, an energy source excites or pumps a gain medium, which converts
the energy from the source into an emission consisting of particles of light, called photons, at particular wavelengths. Lasers provide flexible, non-contact and high-
speed ways to process and treat various materials and enable automated production, miniaturization and increasing product complexity.

Lasers  are  utilized  in  materials  processing  applications  requiring  very  high  power  densities,  such  as  cutting,  welding,  marking,  engraving,  additive
manufacturing, ablation and cleaning, printing, drilling and cladding. Historically, machine tools such as grinding machines, mechanical saws, milling machines,
lathes,  presses,  water  jet  cutters,  plasma  cutters  and  welding  machines  have  been  used  to  cut,  combine,  form  or  otherwise  process  metal  in  the  production  of
finished  goods  such  as  automobiles,  consumer  appliances,  electronics  and  heavy  machinery.  Laser-based  systems  are  increasingly  gaining  share  within  the
materials processing market because of the greater precision, processing speeds and flexibility enabled by this technology. Beyond materials processing, lasers are
well-suited for imaging and inspection applications and the ability to confine laser light to narrow wavelengths makes them particularly effective in medical, non-
destructive inspection and sensing applications.

Fiber Lasers

Fiber lasers use semiconductor diodes as the energy source to pump a gain medium consisting of specialty optical fibers, which are infused with rare earth
ions. These fibers are called active fibers and are comparable in diameter to a human hair. The laser emission is created within optical fibers and delivered through
a flexible optical fiber cable. As a result of their different design and components, fiber lasers are more reliable, efficient, robust, compact and easier to operate
than gas, crystal and solid state lasers that were initially used in industrial applications. In addition, fiber lasers free the end users from fine mechanical adjustments
and the high maintenance costs that are typical for other laser technologies.

Although  low  power  fiber  lasers  were  introduced  four  decades  ago,  their  increased  adoption  in  the  last  twenty  years  has  been  driven  primarily  by  our
improvements in their output power levels and cost, as well as their superior performance, lower cost of ownership and greater reliability compared with other laser
and non-laser technologies. We successfully increased output power levels, efficiency and reliability by improving optical components such as diodes and active
fibers that increased their power capacities and improved their performance. Fiber lasers now offer output powers that exceed those of other laser technologies in
many categories. Our substantial advancements in diode technology, packaging design and other optical

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components together with increased production volumes over the last two decades reduced the cost and increased the reliability of our products. As a result, the
average cost per watt of output power has decreased dramatically and our fiber lasers effectively compete in many applications that used other laser technologies
and  non-laser  solutions  historically.  We  believe  that  fiber  lasers  provide  a  combination  of  benefits  that  include:  superior  performance;  enhanced  end  user
productivity;  lower cost  of  ownership;  greater  ease  of  use;  a more  compact  footprint;  and greater  choice  of  wavelengths  and  more  precise  beam  control.  There
remain  applications  and  processes  where  other  laser  and  non-laser  technologies  may  provide  superior  performance  with  respect  to  particular  features  or
applications notwithstanding the benefits offered by fiber lasers.

Our Competitive Strengths

Our key strengths and competitive advantages include the following:

World's Leading Producer of Fiber Laser Technology.   As a pioneer and technology leader in fiber lasers, we are able to leverage our scale to reduce costs

for our customers and drive the proliferation of fiber lasers in existing and new applications.

Vertically  Integrated  Development  and  Manufacturing.       We  develop  and  manufacture  most  of  our  key  high-volume  specialty  components,  along  with
optical  heads  and  other  products  used  in  conjunction  with  our  lasers,  which  we  believe  enhances  our  ability  to  meet  customer  requirements,  reduce  costs  and
accelerate product development.

Manufacturing Scale. We have invested extensively in our production capabilities allowing us to efficiently manufacture and deliver large volumes of fiber

lasers in short delivery cycles which provide us with a competitive advantage.

Breadth  and  Depth  of  Expertise.     Our  extensive  know-how  in  materials  sciences  and  experience  in  optical,  electrical,  mechanical  and  semiconductor
engineering  enable  us  to  develop  and  manufacture  proprietary  components,  products,  accessories  and  systems  and  assist  customers  in  improving  their
manufacturing using our fiber lasers.

Broad Product Portfolio and Ability to Meet Customer Requirements.  Our broad range of standard and custom fiber lasers operating at various wavelengths
and pulse durations allow us to meet varied customer requirements. Further, our vertically integrated manufacturing and broad technology expertise allow us to
design, prototype and commence high-volume production of our products rapidly.

Diverse  Customer  Base,  End  Markets  and  Applications.       Our  diverse  customer  base,  end  markets  and  applications  provide  us  with  many  growth
opportunities. In 2020, we shipped products to thousands of customers worldwide. Our principal end markets and representative applications within those markets
include:

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Table of Contents

Materials Processing Markets

End Market
General manufacturing

Automotive

Consumer goods

Medical devices
Energy and Renewable Energy

Aerospace, rail and
shipbuilding

Micro electronics

Other Markets

End Market
Aerospace and defense
Entertainment
Scientific
Medical procedures

Communications

Products

Applications
Flat sheet, tube and 3D cutting
Welding, brazing and hardening
Marking, engraving and printing
3D printing
Ablation and cleaning
Cutting of high-strength steel and aluminum
Welding tailored blanks, frames and auto parts
Seam welding and brazing
Electric vehicle battery processing
Micro welding, cutting and marking
Marking of plastic and non-metal material
Stent, pacemaker and device manufacturing

Hardening and welding of pipes

Cladding of turbine blades and drill bits

Solar cell processing
Welding titanium, welding/cutting thick plates
Percussion drilling of parts
Non-destructive inspection
Wafer inspection and annealing
Processing of glass, ceramics, sapphire, silicon

Principal Products
Continuous Wave ("CW") lasers (1-20 kW)
CW lasers (1-100 kW)
Nanosecond ("NS") pulsed lasers (10-100 W)
CW lasers (200-1,000 W)
NS pulsed lasers (100-2000 W)
CW lasers (1-20 kW)
CW lasers (1-50 kW)
CW lasers and IPG systems
CW lasers and NS pulsed lasers
Quasi-CW ("QCW") lasers and NS pulsed lasers
Ultraviolet pulsed lasers
CW lasers and NS pulsed lasers

CW lasers (4-50 kW)

CW lasers (1-20 kW) and IPG systems

Green pulsed lasers
CW lasers (1-50 kW) and IPG systems
QCW lasers
Genesis systems
CW lasers and NS pulsed lasers
Picosecond ("PS") pulsed lasers

Applications
Directed energy
Laser cinema projection
Sensing, spectroscopy and research
General surgery, urology and soft tissue
Skin, wrinkle/hair removal, dental
Datacom and telecom network infrastructure
Terrestrial and satellite broadband

Principal Products
Single-Mode CW lasers, amplifiers and diodes
RGB luminaire laser system
Mid-infrared and other lasers
Thulium lasers
Erbium and diode lasers
Optical transceivers
Optical amplifiers and raman lasers

We design and manufacture a broad range of high-performance fiber lasers and amplifiers. We also make packaged diodes, direct diode lasers, laser and non-
laser systems and communications  components and systems. Many of our products are designed to be used as general-purpose  energy or light sources, making
them useful in diverse applications and markets.

Our laser products are based on a common proprietary technology platform using many of the same core components, such as semiconductor  diodes and
specialty fibers, which we configure to our customers' specifications. Our engineers and scientists work closely with OEMs, system integrators and end users to
develop  and  customize  our  products  for  their  needs.  Because  of  our  flexible  and  modular  product  architecture,  we  offer  products  in  different  configurations
according to the desired application, including modules, rack-mounted units and tabletop units. Our engineers and other technical experts work directly with the
customer in our application and development centers to develop and configure the optimal solution for each customer's requirements. We also manufacture certain
complementary products that are used with our lasers, such as optical delivery cables, fiber couplers, beam switches, optical processing heads and chillers.

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Table of Contents

Lasers

Our laser products include medium (1 to 999 watts) and high (1,000 watts and above) output power lasers from 0.3 to 4.5 microns in wavelength.  These
lasers may be CW, QCW or pulsed. Our pulsed line includes NS, PS and femtosecond lasers. We offer lasers with different gain mediums and wavelengths. The
gain mediums are ytterbium, erbium and thulium, as well as Raman and hybrid fiber-solid state lasers using our crystal technology. We produce hybrid fiber-solid
state lasers at green and ultraviolet wavelengths for a range of micro processing applications and in the mid-IR spectrum for sensing, imaging and spectroscopy
applications. We also sell fiber pigtailed packaged diodes and fiber coupled direct diode laser systems that use semiconductor diodes rather than optical fibers as
their gain medium. In addition, we offer high-energy pulsed lasers, multi-wavelength lasers, tunable lasers, single-polarization and single-frequency lasers, as well
as other versions of our products.

We believe that we produce the highest power solid-state lasers in the industry. Our ytterbium fiber lasers reach power levels of up to 120,000 watts. We also
make  single-mode  and  low-mode  output  ytterbium  fiber  lasers  with  power  levels  of  up  to  20,000  watts  and  single-mode,  erbium  and  thulium  fiber  lasers  with
power levels of up to 1,000 watts.

For  2020  fiscal  year,  high  power  continuous  wave  ("CW")  lasers  accounted  for  54%  of  revenue  and  were  56%  and  62%  of  revenue,  in  2019  and  2018,

respectively. Pulsed lasers accounted for 13%, 11%, and 11% of revenue in 2020, 2019 and 2018, respectively.

Accessories

We manufacture and sell accessories that include high power optical fiber delivery cables, fiber couplers, beam switches, chillers and scanners for our fiber
lasers. We are expanding our line of cutting and welding optical processing heads for use with our fiber lasers and sell devices for in-line coherent monitoring for
welding.

Systems

Besides selling laser sources, we also offer integrated laser systems for particular geographic markets or custom-developed for a customer's manufacturing
requirements. We offer 2D compact flat sheet cutter systems and multi-axis systems for fine welding, cutting and drilling. We produce high precision laser systems
for the medical device industry. We also offer a welding seam stepper and picker, which is an automated fiber laser welding tool providing customers increased
processing speeds, better quality and the elimination of certain clamping tools. In 2018, we acquired Genesis Systems Group LLC (United States), a leader in the
integration of laser and non-laser robotic welding and automation solutions, and Robot Concept GmbH (Germany), an integrator of laser-based systems. IPG also
develops and sells specialized fiber laser systems for unique material processing applications as requested by customers desiring a complete laser-based solution,
including orbital welding, pipe welding and remote welding. The platforms include robotic and multi-axis workstations for welding, cutting and cladding, flatbed
cutting  systems,  and  diode  markers.  For  the  2020,  2019  and  2018  fiscal  years,  laser  and  non-laser  systems  accounted  for  8%,  11%,  and  4%,  respectively,  of
revenues.

Other Products

We produce optical amplifiers, which are predominantly deployed in broadband networks, ranging from milliwatts to up to 1,500 watts of output power from
1 to 2 microns in wavelength. We offer erbium-doped fiber amplifiers ("EDFAs"), Raman amplifiers and integrated communications systems that incorporate our
amplifiers. We also offer ytterbium and thulium specialty fiber amplifiers and broadband light sources that are used in advanced applications. Our fiber amplifiers
offer some of the highest output power levels and highest number of optical outputs in the industry.

We  also  sell  optical  transceiver  and  transponder  modules  for  communications  applications.  These  optical  subsystems  provide  the  interface  for
interconnecting electronic equipment including Ethernet switches, IP routers and SONET/SDH optical transport modules within telecommunications, cable multi-
system operator ("MSO") and data center networking applications.

Our Markets

We broadly classify our principal end markets as material processing, advanced applications, communications and medical procedures. The following table

shows the allocation of our net sales (in thousands) among our principal markets:

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Materials processing
Advanced applications
Communications
Medical procedures

Total

2020

% of Total

Year Ended December 31,
2019

% of Total

2018

% of Total

$

$

1,082,478 
63,859 
23,144 
31,243 
1,200,724 

90.2  % $
5.3  %
1.9  %
2.6  %
100.0  % $

1,229,211 
40,779 
30,111 
14,480 
1,314,581 

93.5  % $
3.1  %
2.3  %
1.1  %
100.0  % $

1,374,448 
43,469 
34,397 
7,560 
1,459,874 

94.1  %
3.0  %
2.4  %
0.5  %
100.0  %

These estimates are based upon customer information and when customer information has not been provided, upon our best information and belief.

Materials Processing

The most significant materials processing applications for fiber lasers are cutting, welding and brazing, marking and engraving, additive manufacturing such

as 3D printing and ablation. Other applications include precision processing, surface treatment, drilling and annealing.

Cutting  and  Welding  Applications.       Laser-based  cutting  technology  has  several  advantages  compared  to  alternative  technologies.  Laser  cutting  is  fast,
flexible and highly precise and can be used to cut complex contours on flat, tubular or three-dimensional materials. The laser source can be programmed to process
many  different  kinds  of  materials  such  as  steel,  aluminum,  brass,  copper,  glass,  ceramic  and  plastic  at  various  thicknesses.  Laser  cutting  technology  is  a  non-
contact  process  that  is  easy  to  integrate  into  an  automated  production  line  and  is  not  subject  to  wear  of  the  cutting  medium.  We  sell  low, mid  and  high  power
ytterbium  fiber  lasers  for  laser  cutting.  High  electrical  efficiency,  low  maintenance  and  operating  cost,  high  beam  quality,  wide  operating  power  range,  power
stability and small spot size are some of the qualities offered by IPG fiber lasers for many cutting applications, which enable customers to cut a variety of materials
faster.

Laser welding offers several  important  advantages  compared  to conventional  welding technology  as it is non-contact,  precise,  easy to automate,  provides
high process speed and results in narrow-seamed, high-quality welds that generally require little or no post-processing machining. The high beam quality of our
fiber lasers coupled with high CW power offer deep penetration welding as well as shallow conduction mode welding. Lasers allow for precise welding required in
battery  manufacturing  or the small  components used in consumer electronics.  In addition, fiber  lasers enable remote  welding "on the fly," a flexible  method of
three-dimensional  welding  in  which  the  laser  beam  is  positioned  by  a  robot-guided  scanner.  Remote  welding  stations  equipped  with  fiber  lasers  are  used  for
welding door panels, seat backs, spot and lap welds over the entire auto body frame ("body-in-white") and tailor welded blanks for automotive applications. Our
products are used also for laser brazing of visible joints in automobiles such as tailgates, roof joints and columns. Brazing is a method of joining sheet metal by
using a melted filler material similar to soldering but requiring higher temperatures.

3D Printing. Historically,  metalworking  has  been  performed  with  processes  that  remove  material  to  produce  component  parts.  The  development  of  3D
printing  technology  enables  the  production  of  three-dimensional  objects  from  digital  design  data  through  an  additive  manufacturing  process,  which  builds  up
components  in layers  using  materials  that  are  available  in  fine  powder  form.  3D printers  take  advantage  of  improvements  in  computing  power  and motion  and
process  control  to  deposit  a  range  of  materials,  including  metals,  plastics  and  composite  materials,  accurately  at  high  speed.  Within  metal-based  3D  printing
processes that include laser metal deposition (LMD) and selective laser melting (SLM), a laser beam is used to fuse metallic powder at points defined by computer-
generated design data. 3D printing permits highly complex structures, with a high degree of customization capability and significantly less waste than subtractive
manufacturing processes.  

Marking and Engraving.    With the increasing need for source traceability, component identification and product tracking as a means of reducing product
liability  and  preventing  falsification,  as  well  as  the  demand  for  modern  robotic  production  systems,  manufacturers  increasingly  demand  laser  marking  systems
capable  of  applying  serialized  alphanumeric,  graphic  or  bar  code  identifications  directly  onto  their  manufactured  components.  Laser  engraving  is  similar  to
marking but forms deeper grooves in the material. In contrast to conventional acid etching and ink-based technologies, lasers can mark a wide variety of metal and
non-metal  materials,  such  as  ceramic,  glass  and  plastic  surfaces,  at  high  speeds  and  without  contact  by  changing  the  surface  structure  of  the  material  or  by
engraving. Laser marking systems can be easily integrated into a customer's production process and do not subject the item being marked to mechanical stress. In
addition, we make high powered lasers for ablation and cleaning applications.

Micro-materials  processing.  In  the  semiconductor  industry,  lasers  typically  are  used  as  the  light  source  in  microlithography  and  for  annealing,  dicing,
drilling, lift-off and marking of wafers. In the electronics industry, lasers typically are used to cut, join, mark, scribe or otherwise process a variety of materials that
include ceramics, metals, plastics, silicon, and

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sapphire among others. Consumer electronic devices such as mobile phones, computers and handheld computers contain many parts that are laser-cut, marked or
welded. In the photovoltaic or solar panel industry, pulsed lasers are used to remove materials and to scribe, or cut, solar cells. The high beam quality, increased
peak output powers, flexible fiber delivery and competitive price of fiber lasers have accelerated the adoption of fiber lasers in these low power applications.

Precision Processing.       The  trend  toward  miniaturization  in  numerous  industries  such  as  consumer  electronics,  as  well  as  innovations  in  materials  and
structures, is driving end users to utilize lasers in processing and fabrication. The ability of lasers to cut, weld, drill, ablate, etch and add materials on a fine scale is
enabling new technologies and products across many industries. Our low power CW and QCW lasers are used to cut medical stents and weld medical batteries. In
photovoltaic manufacturing, our lasers etch and perform edge isolation processes. The aerospace industry requires precise manufacturing of engine parts so that
cooling is effective and aerospace manufacturers use lasers to conduct percussion drilling. Processing of plastics and semi-conductors require short pulse and high
energy lasers, in the green, UV and mid-IR wavelengths.

Advanced Applications

Our  fiber  lasers  and  amplifiers  are  utilized  by  commercial  firms  and  by  academic  and  government  institutions  worldwide  for  advanced  and  scientific
applications.  These  markets  may  sell  specialty  products  developed  by  us  or  our  commercial  products.  Representative  applications  include  directed  energy,
spectroscopy,  optical  trapping,  remote  sensing,  LIDAR  and  materials  characterization.  Our  visible  lasers  can  be  used  in  cinema  projection,  amusement  parks,
planetariums and light shows.

Communications

We design and manufacture optical amplifiers and optical transceiver and transponder modules for communications applications. IPG's fiber amplifiers are
deployed in some of the world's largest broadband networks, supporting high speed data, voice, video on demand and high definition television applications. We
provide a broad range of high power products for these applications including erbium doped fiber amplifiers and Raman lasers. We also produce optical transceiver
and transponder modules based upon proprietary tunable lasers, photonic integrated circuits and mixed signal coherent DSP-ASIC designs, intended to simplify
optical networks and reduce customer capital costs. These configurable modules are designed to operate at 10G and 100G coherent transmission rates, with higher
speed modules under development. These products are deployed in data center operations and optical network systems.

Medical Procedures

We  sell  our  commercial  fiber  and  diode  laser  modules,  subassemblies  and  complete  systems  to  OEMs  that  incorporate  our  products  into  their  medical
products. Our ultrafast, CW and QCW ytterbium, erbium, thulium fiber lasers and hybrid lasers with power from 1 to 200 watts and diode laser systems can be
used  in  various  medical  and  biomedical  applications.  We  have  also  developed  and  are  now  selling  medical  laser  systems  and  fibers  for  surgical  applications,
including benign prostatic hyperplasia and lithotripsy, as an OEM and, in certain territories, as an IPG-branded product. Aesthetic applications addressed by IPG
lasers include skin rejuvenation, hair removal, and treatment of pigmented and vascular lesions.

Technology

Our products are based on our proprietary technology platform that we have developed and refined since our formation. The following technologies are key

elements in our products.

Specialty Optical Fibers

We have extensive expertise in the disciplines and techniques that form the basis for the multi-clad active and passive optical fibers used in our products. We
believe that our large portfolio of specialty active and passive optical fibers has a number of advantages as compared to other commercially available optical fibers.

Semiconductor Diode Laser Processing and Packaging Technologies

We  use  multiple  multi-mode,  or  broad  area,  single-emitter  diodes  rather  than  diode  bars  or  stacks  as  a  pump  source.  We  believe  that  multi-mode  single-
emitter  diodes  are  the  most  efficient  and  reliable  pumping  source  presently  available,  surpassing  diode  bars  and  stacks  in  efficiency,  brightness  and  reliability.
Single-emitter diodes have substantially reduced cooling requirements and typically have long lifetimes at high operating currents, compared to typical lifetimes of
diode bars.

We developed advanced molecular beam epitaxy techniques to grow alumina indium gallium arsenide wafers for our diodes. This method yields high-quality
optoelectronic  material  for  low-defect  density  and  high  uniformity  of  optoelectronic  parameters.  In  addition,  we  have  developed  numerous  proprietary  wafer
processes and testing and qualification procedures in order to create a high energy output in a reliable and high power diode. Our diode is packaged to dissipate
heat produced by the

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diode  and  withstands  vibration,  shock,  high  temperature,  humidity  and  other  environmental  conditions,  enabling  world-class  reliability  and  efficiency  of  the
products.

Specialty Components and Combining Techniques

We  developed  a  wide  range  of  advanced  optical  components  that  are  capable  of  handling  high  optical  power  levels  and  contribute  to  the  superior
performance, efficiency and reliability of our products. In addition to fibers and diodes, our optical component portfolio includes fiber gratings, couplers, isolators,
combiners,  and  crystals.  We  also  developed  special  methods  and  expertise  in  splicing  fibers  together  with  low  optical  energy  loss  and  on-line  loss  testing.  We
believe that our internal development and manufacturing of key optical components allows us to lower our manufacturing costs and improve product performance
and reliability.

Side Pumping of Fibers and Fiber Block Technologies

Our technology platform allows us to efficiently combine a large number of multi-mode single-emitter semiconductor diodes with our active optical fibers
that are used in all of our products. A key element of this technology is that we pump our fiber lasers through the cladding surrounding the active core. We splice
our specialty active optical fibers with other optical components and package them in a sealed box, which we call a fiber block. The fiber blocks are compact and
are designed to eliminate the risk of contamination or misalignment due to mechanical vibrations and shocks as well as temperature or humidity variations. Our
design  is  scalable  and  modular,  permitting  us  to  make  products  with  high  output  power  by  coupling  a  large  number  of  diodes  with  fiber  blocks,  which  can  be
combined in parallel and serially.

High-Stress Testing

We employ high-stress techniques in testing components and final products that help increase reliability and accelerate product development. For example,
we test all of our diodes with high current and temperatures to identify and eliminate potentially unreliable diodes. We also have built a large database of diode test
results that allows us to predict the estimated lifetime of our diodes. This testing allows us to eliminate defective diodes prior to further assembly and thus increase
reliability.

Research and Development

We perform research and development to develop new products or components, improve existing products or components, develop new applications for our

products and improve our manufacturing processes.

We research, develop and manufacture most of the key components of our lasers. In addition to our cladding-pumped specialty fiber platform, we have core
competencies  in  high  power  multi-mode  and  single-mode  semiconductor  laser  diodes,  diode  packaging,  specialty  active  and  passive  optical  fibers,  high-
performance optical components, crystal growth and processing, fiber gain blocks and fiber modules, thin film optical coatings, as well as splicing and combining
techniques and high-stress test methods. The strategy of developing our proprietary components has allowed us to leverage our optical experience and large volume
requirements to lower the cost of our products.

Our  research  and  development  supports  expanding  and  improving  our  product  line  by  increasing  power  levels,  improving  beam  quality  and  electrical
efficiency, decreasing the size of our products and lowering the cost per watt. We are engaged in research projects to expand the spectral range of products that we
offer. We are investing our research and development funds on laser systems, products for medical applications, and telecommunications products and components.

We have assembled a team of scientists and engineers with specialized experience and knowledge in fiber lasers and amplifiers, materials science, optics,
critical components, testing and manufacturing process design, and laser application development. Our team of experienced scientists and engineers works closely
with many of our customers to develop and introduce custom products and laser processing that address specific applications and performance requirements.

We incurred research and development costs of approximately $126.9 million, $130.0 million and $122.8 million for the years ended December 31, 2020,
2019 and 2018, respectively.  We expect  to continue  our commitment  to  research  and development  and to introduce  new products,  systems  and complementary
products. See Item 7, "Management's Discussion and Analysis of Financial Condition of Results of Operations."

Intellectual Property

We  rely  on  the  technical  expertise,  creativity,  and  knowledge  of  our  personnel,  and  therefore,  we  utilize  trade  secret,  patent,  trademark,  copyright  and
contractual protections to maintain our competitive position and protect our proprietary rights in our products and technology. While our intellectual property rights
are important to our success, we believe that our business as a whole is not materially dependent on any particular patent, trademark, copyright or other intellectual
property right. IPG has used, registered or applied to register a number of trademark registrations in the United States and in other countries.

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As of December 31, 2020, we have over 500 patents issued and over 475 pending patent applications worldwide. Intellectual property rights, including those
that we own, those that we license and those of others, involve significant risks. See Item 1A, "Risk Factors — In the past, we were subject to litigation alleging
that we infringed third-party intellectual property rights. Intellectual property claims could result in costly litigation and harm our business" and "Risk Factors —
Our inability  to  protect  our  intellectual  property  and  proprietary  technologies  could  result  in  the unauthorized  use  of  our technologies  by third  parties,  hurt  our
competitive position and adversely affect our operating results."

Manufacturing

Vertical integration is one of our core business strategies through which we control our proprietary processes and technologies as well as the supply of key
components  and  assemblies.  Our  vertically  integrated  manufacturing  operations  include  the  manufacturing  or  assembly  of  optical  preforms,  specialty  fiber,
semiconductor  wafers,  laser  diodes  and  packaged  laser  diodes,  specialty  optical  components,  fiber  blocks,  fiber  laser  modules,  power  supplies,  circuit  boards,
electronics and control systems and software, crystals, chillers, housings and cabinets and final assembly of finished product. In addition, we make some of the
automated  production  systems,  tools  and  fixtures  and  testing  systems  that  we  use  in  our  own  manufacturing  processes.  Over  the  last  several  years,  we  added
additional production capabilities, including multi-wafer growth reactors, diode test stations, fiber preform and fiber drawing equipment and low, mid and high
power laser production and testing, in order to increase our capacity as well as reduce the risks associated with our production processes.

We operate our own semiconductor foundry for the production of the multi-mode single-emitter diodes. We also process, package and extensively test all of
our  diodes.  We  developed  proprietary  components  and  accessories,  manufacturing  tools,  equipment  and  techniques  over  many  years  in  an  effort  to  address  the
major issues that had been inhibiting the development of fiber laser technology and to provide products that differentiate us from our competitors. In addition, we
have  acquired  the  technology  to  produce  additional  components,  such  as  volume  Bragg  gratings  and  crystals.  Using  our  technology  platform,  we  configure
standard laser and amplifier products based upon each customer's specifications. We have developed proprietary testing methodologies that allow us to develop
higher power components and products in short periods of time, enable us to introduce products to the market more quickly, capitalize on new opportunities and
provide  superior  service  to  our  customers.  In  our  materials  processing  systems  business,  we  manufacture  standard  configuration  systems  and  also  systems
customized for specific customer requirements. We purchase common and specialized mechanical, electrical and optical parts and raw materials from vendors.

Sales, Marketing and Support

We  market  our  products  internationally  primarily  through  our  direct  sales  force.  Our  direct  sales  force  sells  to  end  users,  OEMs  and  systems  integrators.
Once our fiber laser products are designed into an OEM system, the OEM's sales force markets its systems, allowing us to leverage our sales capability through the
OEM sales channels and because the OEM's typically having several sales persons in locations other than where our sales offices are located. We have sales offices
in  the  countries  in  which  we  have  major  manufacturing:  United  States,  Germany  and  Russia.  We  have  sales  and  service  offices  and  application  development
centers in the Americas, Europe and Asia. To a lesser extent, we market through agreements with independent sales representatives and distributors. We typically
provide one to five-year parts and service warranties on lasers and amplifiers. Most of the Company's sales offices provide support to customers in their respective
geographic areas.

Customers

We sell our products globally to OEMs, system integrators and end users in a wide range of diverse markets who have the in-house engineering capability to
integrate our products into their own systems. We also sell complete laser and non-laser solutions to end users for their production needs. We have thousands of
customers  worldwide.  One  of  our  customers,  Han's  Laser,  headquartered  in  China,  accounted  for  8%,  9%  and  12%  of  our  net  sales  in  2020,  2019  and  2018,
respectively. No other customer accounted for 10% or more of our net sales in 2020, 2019 or 2018.

Competition

Our markets are highly competitive and characterized by rapidly changing technology, continuously evolving customer requirements and reduced average
selling  prices  over  time.  In  the  materials  processing  market,  we compete  with makers  of  fiber  lasers  and  other  lasers,  such  as Coherent,  Inc.,  Laserline  GmbH,
Lumentum Holdings Inc., Maxphotonics Co., Ltd., nLight, Inc., Trumpf GmbH + Co. KG and Wuhan Raycus Fiber Laser Technologies Co. Ltd., as well as other
smaller competitors. Our current or potential customers may develop and produce products for their own use which are competitive to our products. Such vertical
integration  could  reduce  the  market  opportunity  for  our  products.  Many  of  our  fiber  laser  competitors  are  increasing  the  output  powers  of  their  fiber  lasers  to
compete with our products.

We also compete with end users that produce their own laser technology as well as with manufacturers of non-laser methods and tools, such as traditional

non-laser welding, cutting dies, mechanical cutters and plasma cutters in the materials

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processing market. Some of our competitors are larger than we are and have substantially greater financial, managerial and technical resources, more extensive
distribution and service networks, greater sales and marketing capacity, and larger installed customer bases than we do.

Backlog

At  December  31,  2020,  our  backlog  of  orders  (generally  scheduled  for  shipment  within  one  year)  was  approximately  $673.7  million  compared  to
$693.4 million at December 31, 2019. At December 31, 2020, our backlog included $376.0 million of orders with firm shipment dates and $297.6 million of frame
agreements  that  we  expect  to  ship  within  one  year,  compared  to  $285.1  million  of  orders  with  firm  shipment  dates  and  $408.3  million  of  frame  agreements  at
December 31, 2019. Frame agreements are non-binding indications of customer pricing and volume levels but are not firm customer purchase obligations. Orders
used  to  compute  backlog  are  generally  cancellable  without  substantial  penalties  or  any  penalties.  We  anticipate  shipping  a  substantial  majority  of  the  present
backlog during fiscal year 2021. However, our backlog at any given date is not necessarily indicative of actual sales for any future period.

Employees and Human Capital Management

Our  employees  are  our  most  valuable  assets.  They  contribute  to  IPG’s  success  and,  in  particular,  the  skilled  and  experienced  employees  within  our
manufacturing, sales, service, research and development and quality assurance departments are instrumental in driving operational execution and strong financial
performance, advancing innovation and maintaining a strong quality and compliance program.

As of December 31, 2020, we had approximately 6,060 full-time employees, including 660 in research and development, 4,550 in manufacturing and service
operations, 350 in sales and marketing, and 500 in general and administrative functions. As a global company, our employees are distributed throughout our more
than thirty locations in twenty-four countries. Of our total full-time employees at our principal facilities, approximately 2,150 were in the United States, 1,200 were
in Germany, 1,740 were in Russia, 210 were in Belarus and 230 were in China. We have never experienced a work stoppage, and none of our employees at our
principal manufacturing facilities are subject to a collective bargaining agreement.

The success and growth of IPG’s business is dependent in large part on our ability to attract, retain and develop a diverse population of talented and high-
performing employees at all levels of our organization. For our research, engineering and production management positions, we require employees with university
and graduate-level degrees in physics, optics, electrical, mechanical and software engineering. Globally, the demand for employees with such levels of education is
high and competitive.

To  succeed  in  these  conditions,  IPG  implements  key  recruitment  and  retention  strategies,  objectives  and  effectiveness  measures  as  part  of  the  overall

management of our business. These core strategies are advanced through the following programs, policies and initiatives:

Competitive Pay and Benefits. IPG’s compensation programs are designed to align the compensation of our employees, who operate in a highly competitive
and technologically challenging environment, with IPG’s business performance and to provide the proper incentives to attract, retain and motivate employees to
achieve  superior  performance.  The  structure  of  our  compensation  programs  balances  incentive  earnings  for  both  short-term  and  long-term  performance.
Specifically:

• We provide employee wages that are competitive and consistent with employee’s positions, skill levels, experience, knowledge and geographic location.

• All  employees  participate  in  our  annual  cash  bonus  program,  allowing  them  to  share  in  the  profitability  and  business  performance  of  IPG.  We  also
generally provide equity grants and an employee stock purchase plan to salaried employees consistent with geographic compensation practices and subject
to regulatory compliance. These programs each further align our employees’ financial interests with the performance of the business and the interests of
our stockholders.

• We generally provide annual increases and incentive compensation based on merit.

• We purchase compensation data from a compensation and benefits consulting firm to allow us to ensure we provide competitive compensation in each of

the geographic locations in which we operate.

• We align our executives’ annual and long-term equity compensation with our stockholders’ interests by linking realizable pay with stock performance and

operating metrics.

• We provide comprehensive benefit options designed to retain our employees and support their families in living healthier and more secure lives.

Employee recruitment, retention and development. IPG works diligently to attract the best talent from a broad array of sources to meet the current and future

demands of our business. We have established relationships with trade schools, world-

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class universities, professional associations and industry groups to proactively attract talented and capable new hires. We also utilize social media, local job fairs
and educational organizations to find diverse, motivated and responsible employees. IPG has made strides to increase diversity in management positions, building
internal resources for potential future leadership openings. IPG has a strong employee value proposition that leverages our technology leadership, unique culture,
collaborative working environment, shared sense of purpose, and desire to do the right thing to attract talent to our company. In 2020, we hired approximately 719
new employees.

We monitor employee turnover rates as our success depends upon retaining and investing in our highly trained manufacturing and technical staff. IPG strives
to  decrease  voluntary  turnover  rates  and  thereby  increase  employee  tenure  by  ensuring  a  combination  of  competitive  compensation,  individual  developmental
opportunities and personal career enrichment and growth. Our retention at the technical, professional  and levels is high. In 2020, amidst global uncertainty and
turmoil resulting from the COVID-19 pandemic, we introduced a number of special initiatives to minimize the impact upon our employees to safeguard the health
and safety of them and their communities. These initiatives included compensation programs designed to provide a source of income to employees who needed to
be absent from work as a result of the pandemic and enhanced “appreciation pay” to recognize the significant contributions of hourly employees who continued to
work on-site. Throughout the crisis, we believe our employees took immense pride in the shared purpose of making products that supported the world’s critical
supply chains within a wide range of essential businesses and services including medical devices, transportation, communications, packaging and agriculture.

Executive Officers of the Registrant

The following table sets forth certain information regarding our executive officers as of February 20, 2021:

Name
Valentin P. Gapontsev, Ph.D.
Eugene A. Scherbakov, Ph.D.

Timothy P.V. Mammen
Angelo P. Lopresti
Alexander Ovtchinnikov, Ph.D.
Trevor D. Ness
Igor Samartsev
Felix Stukalin

Age
81
73

51
57
60
48
56
59

Position with the Company
Chief Executive Officer and Chairman of the Board
Chief Operating Officer, Managing Director of IPG Laser GmbH, Senior
Vice President, Europe, and Director
Chief Financial Officer and Senior Vice President
General Counsel, Secretary and Senior Vice President
Senior Vice President, Components
Senior Vice President, World Wide Sales and Marketing
Chief Technology Officer
Senior Vice President, North America Operations

Valentin P. Gapontsev, Ph.D. has been the Chief Executive Officer and Chairman of the Board of IPG since our inception. Prior to founding the company in
1990,  Dr.  Gapontsev  served  as  senior  scientist  in  laser  material  physics  and  head  of  the  laboratory  at  the  Soviet  Academy  of  Science's  Institute  of  Radio
Engineering and Electronics in Moscow. In 2006 he was awarded the Ernst & Young  Entrepreneur of the Year Award for Industrial Products and Services in New
England  and  in  2009, he  was awarded  the  Arthur  L.  Schawlow  Award by  the  Laser  Institute  of  America.  In  2011 he  received  the  Russian  Federation  National
Award in Science and Technology, and he was selected as a Fellow of the Optical Society of America. Dr. Gapontsev holds a Ph.D. in Laser Materials from the
Moscow Institute of Physics and Technology.

®

Eugene A. Scherbakov, Ph.D. has served as Chief Operating Officer since February 2017, Managing Director of IPG Laser GmbH, our German subsidiary,
since August 2000 and Senior Vice President, Europe, since 2013. He served as the Technical Director of IPG Laser from 1995 to August 2000. From 1983 to
1995, Dr. Scherbakov was a senior scientist in fiber optics and head of the optical communications laboratory at the General Physics Institute, Russian Academy of
Science in Moscow. Dr. Scherbakov graduated from the Moscow Physics and Technology Institute with an M.S. in Physics. In addition, Dr. Scherbakov attended
the Russian Academy of Science in Moscow, where he received a Ph.D. in Quantum Electronics from its Lebedev Physics Institute and a Dr.Sci. degree in Laser
Physics from its General Physics Institute.

Igor Samartsev has served as our Chief Technology Officer since 2011. Prior to that, he was the Deputy General Manager of our Russian subsidiary, NTO
IRE-Polus since 2005 and after having served in technical leadership roles at NTO IRE-Polus. Mr. Samartsev holds an M.S. in Physics from the Moscow Institute
of Physics and Technology.

Timothy P.V. Mammen has served as our Chief Financial Officer since July 2000 and as Vice President since November 2000. He was promoted to Senior
Vice  President  in  February  2013.  Between  May  1999  and  July  2000,  Mr.  Mammen  served  as  the  Group  Finance  Director  and  General  Manager  of  the  United
Kingdom operations for IPFD. Mr. Mammen was Finance Director and General Manager of United Partners Plc, a commodities trading firm, from 1995 to 1999
and, prior to that, he worked in the finance department of E.I. du Pont de Nemours and Company. Mr. Mammen holds an Upper Second B.Sc. Honours degree in
International Trade and Development from the London School of Economics and Political Science. He is a Chartered Accountant and a member of the Institute of
Chartered Accountants of Scotland.

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Angelo P. Lopresti has  served  as  our  General  Counsel,  Secretary  and  Vice  President  since  February  2001.  He  was  promoted  to  Senior  Vice  President  in
February 2013. Prior to joining us, Mr. Lopresti was a partner at the law firm of Winston & Strawn LLP from 1999 to 2001. He was a partner at the law firm of
Hertzog, Calamari & Gleason from 1998 to 1999 and an associate there from 1991 to 1998. He served on the board of Coastway Bancorp, Inc. from 2016 to 2018,
prior to its acquisition by HarborOne Bancorp, Inc. Mr. Lopresti holds a B.A. in Economics from Trinity College and a J.D. from the New York University School
of Law.

Alexander Ovtchinnikov, Ph.D., has served as our Vice President, Components, since September 2005 and as Director of Material Sciences from October
2001 to September 2005. He was promoted to Senior Vice President in February 2013. Prior to joining us, Dr. Ovtchinnikov was Material Science Manager of
Lasertel, Inc., a maker of high-power semiconductor lasers, from 1999 to 2001. For 15 years prior to joining Lasertel, Inc., he worked on the development and
commercialization  of  high  power  diode  pump  technology  at  the  Ioffe  Institute,  Tampere  University  of  Technology,  Coherent,  Inc.  and  Spectra-Physics
Corporation.  He  holds  an  M.S.  in  Electrical  Engineering  from  the  Electrotechnical  University  of  St.  Petersburg,  Russia,  and  a  Ph.D.  from  Ioffe  Institute  of  the
Russian Academy of Sciences.

Trevor D. Ness has served as our Senior Vice President, World Wide Sales and Marketing, since February 2013. From January 2011 until February 2013, he
served as our Vice President-Asian Operations. Prior to joining us, Mr. Ness was Director of GSI Precision Technologies China from May 2005 to December 2010
and prior  to that  he held technical  sales  management  roles  with  GSI Group, Inc. and Cobham Plc, located  in UK, Japan and Taiwan. Mr. Ness holds a B.S. in
Geology from Imperial College, a H.N.C. from Bournemouth University and an M.B.A. from The Open University.

Felix Stukalin has served as our Senior Vice President, North America Operations, since February 2013. From March 2009 until February 2013, he served as
our Vice President, Devices. Prior to joining us, he was Vice President, Business Development of GSI Group Inc. from April 2002 to September 2008, and from
March 2000 to April 2002 he was Vice President of Components and President of the Wave Precision divisions of GSI Lumonics, Mr. Stukalin holds a B.S. in
Mechanical Engineering from the University of Rochester and he is a graduate of the Harvard Business School General Management Program.

Seasonality

Our net sales can fluctuate from quarter to quarter with general economic trends, specific industry cycles, holidays in foreign countries such as Lunar New
Year in the first quarter of our fiscal year and the timing of capital expenditures by our customers. Historically, our net sales have been higher in the second half of
the year than in the first half of the year, although that trend did not occur in 2018 and 2019 due to a decrease in capital equipment spending in Europe and China
caused by slower macro-economic growth and uncertainty caused by the trade war between the United States and China.

Government Regulation

Regulatory Compliance

The majority of our laser and amplifier products sold in the United States are classified as Class IV Laser Products under the applicable rules and regulations
of the Center for Devices and Radiological Health ("CDRH") of the U.S. Food and Drug Administration ("FDA"). The same classification system is applied in the
European  markets.  Safety  rules  are  formulated  with  "Deutsche  Industrie  Norm"  (i.e.,  German  Industrial  Standards)  or  International  Organization  for
Standardization ("ISO") standards, which are internationally harmonized. CDRH regulations generally require a self-certification procedure pursuant to which a
manufacturer must submit a filing to the CDRH with respect to each product incorporating a laser device, make periodic reports of sales and purchases and comply
with product labeling standards, product safety and design features and informational requirements.

Our business activities are subject to various export controls and trade and economic sanctions laws and regulations, including, without limitation, the U.S.
Commerce  Department’s  Export  Administration  Regulations,  the  U.S.  Treasury  Department’s  Office  of  Foreign  Assets  Control’s  trade  and  economic  sanctions
programs, the U.S. Department of State’s Nonproliferation Sanctions and International Traffic in Arms Regulations, as well as those of the European Community
and Germany, which we collectively refer to as Trade Controls. We further discuss the impact of such Trade Controls under "Risk Factors" in Item 1A "—We must
comply  with  and  could  be  impacted  by  various  export  controls  and  trade  and  economic  sanctions  laws  and  regulations  that  are  fluid  and  may  change  due  to
diplomatic and political considerations outside of our control."

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Environmental Regulation

Our  operations  are  subject  to  various  federal,  state,  local  and  international  laws  governing  the  environment,  including  those  relating  to  the  storage,  use,
discharge,  disposal,  product  composition  and  labeling  of,  human  exposure  to  and  hazardous  and  toxic  materials.  In  the  event  of  an  accident  involving  such
materials, we could be liable for damages and such liability could exceed the amount of our liability insurance coverage and the resources of our business.

We face increasing complexity in our product design and procurement operations due to the evolving nature of environmental compliance regulations and
standards,  as  well  as  specific  customer  compliance  requirements.  These  regulations  and  standards  have  an  impact  on  the  material  composition  of  our  products
entering specific markets. For example, the European Union ("EU") adopted the Restriction of the use of Certain Hazardous Substances in Electrical and Electronic
Equipment  (RoHS)  and  Registration,  Evaluation,  Authorization  and  Restriction  of  Chemicals  (REACH),  and  China  enacted  the  Management  Methods  for
Controlling Pollution Caused by Electronic Information Products Regulation (China-RoHS). In addition to these regulations and directives, we may face costs and
liabilities in connection with product take-back legislation.

For further discussion of risks relating to the regulations to which we are subject, see Item 1A. Risk Factors.

Availability of Reports

Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and any amendments to such reports are available free of
charge on our web site at www.ipgphotonics.com as soon as reasonably practicable after such reports are electronically filed with, or furnished to, the Securities
and Exchange Commission ("SEC"). The SEC maintains an internet site that contains reports, proxy and information statements and other information regarding
issuers that file electronically with the SEC at www.sec.gov. We will also provide electronic or paper copies of such reports free of charge, upon request made to
our Corporate Secretary. The information included on our website is not a part of, nor is it incorporated by reference into, this annual report on Form 10-K.

ITEM 1A.    RISK FACTORS

The factors described below are the principal risks that could materially adversely affect our operating results and financial condition. Other factors may
exist that we do not consider significant based on information that is currently available. In addition, new risks may emerge at any time and we cannot predict
those risks or estimate the extent to which they may affect us.

Risks Relating to the COVID-19 Pandemic

The  COVID-19  pandemic,  including  private  and  public  sector  responses,  could  materially  adversely  affect  our  business,  financial  condition,  results  of

operations and/or cash flows.

As  a  result  of  the  ongoing  COVID-19  pandemic,  governmental  authorities  where  we  produce  and  sell  our  products  implemented  and  are  continuing  to
implement  numerous  and  evolving  measures  to  contain  the  virus,  such  as  travel  bans  and  restrictions,  quarantines,  shelter-in-place  orders  and  guidance  and
business shutdowns. We have significant manufacturing operations in the U.S., Europe and Russia, and a material portion of our sales are in China, the U.S. and
Europe. Each of these countries and regions has been affected by the pandemic and has taken measures to try to contain it. While our main production facilities
currently remain operational, these measures have impacted and may further impact our workforce and operations, as well as those of our customers, vendors and
suppliers. There is considerable uncertainty regarding such measures and potential future measures. In addition to reduced productivity, the constraints and limits
implemented  in  our  operations  in  response  to  COVID-19  may  slow  or  diminish  our  research  and  development  activities  and  qualification  activities  with  our
customers. Restrictive governmental measures had specific expiration dates and some of those measures have been extended in response to increases in infection
rates.  As  a  result,  there  is  considerable  uncertainty  regarding  the  duration  of  such  measures  and  potential  future  measures.  Restrictions  on  our  manufacturing,
support  operations  or  workforce,  or  similar  limitations  for  our  vendors  and  suppliers  could  limit  our  ability  to  meet  customer  demand,  testing,  installation  and
acceptance of our equipment or delays for orders, deliveries and payments, and could have a material adverse effect on our financial condition, cash flows and
results  of  operations.  In  addition,  restrictions  or  disruptions  of  transportation,  such  as  reduced  availability  of  air  transport,  port  closures  and  increased  border
controls or closures, could limit our ability to manufacture, deliver or install products and generate sales, or could result in higher costs and could have a material
adverse effect on our financial condition, cash flows and results of operations.

In  response  to  these  developments,  we  and  our  suppliers  and  customers  modified  business  practices,  including  restricting  employee  travel,  modifying
employee work locations, implementing social distancing and enhanced sanitary measures, and cancelling attendance at events and conferences. We experienced
and may experience increased absenteeism and reduced levels

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of productivity and efficiency, even with the rollout of vaccination programs. The COVID-19 pandemic has also disrupted our internal operations, including by
exposing us to cyber and other data security risks associated with the increased number of our employees working remotely, as well as increased dependence on
internet and telecommunications access and capabilities. There is no certainty that measures implemented by governmental authorities or by us in our operations
will be sufficient to mitigate the risks posed by the COVID-19 virus, including risk of infection of our senior management, scientific staff or a significant number
of employees or the ability of the healthcare system to treat them, and our ability to perform critical functions or respond to the needs of our customers could be
impeded. The resumption of normal business operations after such interruptions may be delayed or constrained by lingering effects of COVID-19 on our suppliers,
third-party service providers, and/or customers.

The  impact  of  COVID-19,  including  changes  in  customer  demand,  pandemic  fears  and  market  downturns,  and  restrictions  on  business  and  individual
activities has created significant economic and demand uncertainty. We have experienced and expect to continue to experience unpredictable volatility in demand
in several  of our end-markets.  In addition to the economic  slowdown caused by the COVID-19 pandemic,  we anticipate  that  it could cause  regional  recessions
and/or  a  global  recession.  The  COVID-19  pandemic  also  may  exacerbate  other  risks  disclosed  herein,  including  but  not  limited  to  downturns  in  our  markets,
uncertainty and adverse changes in general economic conditions, highly competitive markets and declining average selling prices, price decreases, and international
operations and customers.

The degree to which COVID-19 impacts our financial condition, cash flows and results of operations depends upon future developments, which are highly
uncertain and cannot be predicted, including but not limited to the duration, location and spread of the outbreak, its severity, governmental and business measures
to contain the virus and address its impact, and how quickly and to what extent normal economic and operating conditions can resume. We cannot at this time
predict the many potential impacts of the COVID-19 pandemic, but it could have a material adverse effect on our business, prospects, financial condition, cash
flows and results of operations. Furthermore, the COVID-19 pandemic makes it more difficult for us to forecast demand and provide guidance for 2021.

Accordingly, while IPG provided and may provide quarterly guidance during the COVID-19 pandemic, any such guidance we provide is subject to greater
risks and uncertainty than in the past and actual results may be more likely to ultimately vary a greater degree from actual results than guidance we provided in the
past. In light of the foregoing, investors are urged to put the guidance we provide and may provide in context and not to place undue reliance on it.

Risks Relating to the Macroeconomic Environment

Uncertainty and adverse changes in the general economic conditions of markets in which we participate negatively affect our business.

Current and future conditions in the economy have an inherent degree of uncertainty. As a result, it is difficult to estimate the level of growth or contraction
for the economy as a whole. It is even more difficult to estimate growth or contraction in various parts, sectors and regions of the economy, including the materials
processing, telecommunications, advanced and medical markets and applications in which we participate. Because all components of our budgeting and forecasting
are dependent upon estimates of growth or contraction in the markets and applications we serve and demand for our products, the prevailing economic uncertainties
render estimates of future income and expenditures very difficult to make. A significant portion of our sales are to customers in China, which accounted for 42%,
37%  and  43%  in  2020,  2019  and  2018,  respectively.  Slowing  economic  growth  or  recession,  tariff-trade  wars  or  other  adverse  economic  developments  or
uncertainty in any of our key markets, including in China, may result in a decrease in our sales. Adverse changes have occurred and may occur in the future as a
result  of  declining  or  flat  global  or  regional  economic  conditions,  fluctuations  in  currency  and  commodity  prices,  wavering  confidence,  capital  expenditure
reductions, unemployment, declines in stock markets, contraction of credit availability, declines in real estate values, or other factors affecting economic conditions
generally. These changes may negatively affect the sales of our products, increase exposure to losses from bad debts, increase the cost and decrease the availability
of financing, increase the risk of loss on investments, or increase costs associated with manufacturing and distributing products. An economic downturn could have
a material adverse effect on our business, financial condition and results of operations.

Downturns in the markets we serve, particularly materials processing, could have a material adverse effect on our sales and profitability.

Our business depends substantially upon capital expenditures by manufacturers in the materials processing market, which includes general manufacturing,
automotive,  aerospace,  other  transportation,  heavy  industry,  electronics  and  photovoltaic  industries.  Approximately  90%  of  our  revenues  in  2020  were  from
customers in the materials processing market. Although

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applications  in  this  market  are  broad,  sales  for  these  applications  are  cyclical  and  have  historically  experienced  sudden  and  severe  downturns  and  periods  of
oversupply,  resulting  in  significantly  reduced  demand  for  capital  equipment,  including  the  products  that  we  manufacture  and  market.  For  example,  our  sales
decreased by 25% in the materials processing market in 2009 as a result of the global economic recession, our material processing sales declined 10% in the second
half of 2018 and 11% in the 2019 fiscal year, in part due to decreased capital equipment demand stemming from adverse changes to U.S.-China relations, including
rounds  of  tariff  increases  and  retaliations  and  12%  in  the  2020  fiscal  year,  in  part  due  to  decreased  capital  equipment  demand  attributed  to  the  COVID-19
pandemic. For the foreseeable future, our operations will continue to depend upon capital expenditures by customers in these industries or markets, which, in turn,
depend upon the demand, as well as forecasted demand, for their products or services. A softening of demand for our customers' products and services, whether
caused by a weakening of the U.S. or global economies or other factors, may result in decreased revenue or growth for our customers and may lead to decreased
demand for our products, which would reduce our sales and margins. We may not be able to respond by decreasing our expenses quickly enough or sufficiently,
due  in  part,  to  our  fixed  overhead  structure  related  to  our  vertically  integrated  operations  and  our  commitments  to  continuing  investment  in  research  and
development and infrastructure for long term growth.

Risks Relating to Industry Dynamics and Competition

The markets for our products are highly competitive and increased competition could result in reduced sales, reduced gross margins or the loss of market

share.

The industries in which we operate are characterized by significant price and technological competition. We compete with makers of fiber lasers, solid-state
lasers, direct diode lasers, high power CO2, YAG and disc lasers. These include public and private companies such as Coherent, Inc., Laserline GmbH, Lumentum
Holdings Inc., Maxphotonics Co., Ltd., nLight, Inc., Trumpf GmbH + Co. KG, and Wuhan Raycus Fiber Laser Technologies Co. Ltd., as well as other smaller
competitors.  Several  of  these  are  larger  and  have  substantially  greater  financial,  managerial  and  technical  resources,  more  extensive  distribution  and  service
networks,  greater  sales  and  marketing  capacity,  and  larger  installed  customer  bases  than  we  do.  Many  of  our  fiber  laser  competitors  are  increasing  the  output
powers,  improving  the  quality  of  their  fiber  lasers  and  decreasing  prices  to  compete  with  our  products.  Our  current  or  potential  customers  may  determine  to
develop  and  produce  products  for  their  own  use  which  are  competitive  to  our  products.  Such  vertical  integration  could  reduce  the  market  opportunity  for  our
products. We also compete in the materials processing, advanced and medical applications markets with end users that produce their own solid-state and gas lasers
as  well  as  with  manufacturers  of  non-laser  methods  and  tools,  such  as  traditional  non-laser  welding,  cutting  dies  mechanical  cutters  and  plasma  cutters  in  the
materials processing market and scalpels in the medical market.

We may not be able to successfully differentiate our current and proposed products from our competitors' products and current or prospective customers may
not consider our products to be superior to competitors' products. To maintain our competitive position, we believe that we will be required to continue a high level
of  investment  in  research  and  development,  application  development,  manufacturing  facilities  and  customer  service  and  support,  and  to  react  to  market  pricing
conditions. As a result of the foregoing factors, competitive pressures have resulted in price reductions, reduced margins, loss of sales and loss of market share.

The  laser  and  amplifier  industries  are  experiencing  declining  average  selling  prices,  which  could  cause  our  gross  margins  to  decline  and  harm  our

operating results.

Our products are experiencing and may in the future continue to experience a significant decline in average selling prices ("ASPs") as a result of new product
and technology introductions, increased competition and price pressures from significant customers. Newer market participants, particularly in China, have reduced
and may continue to reduce, prices of competing products to gain market share. If the ASPs of our products decline further and we are unable to increase our unit
volumes,  introduce  new  or  enhanced  products  with  higher  margins  or  reduce  manufacturing  costs  to  offset  anticipated  decreases  in  the  prices  of  our  existing
products,  our  operating  results  may  be  adversely  affected.  In  addition,  because  of  our  significant  fixed  costs,  we  are  limited  in  our  ability  to  reduce  total  costs
quickly in response to any revenue shortfalls. Because of these factors, we have experienced and we may experience in the future material adverse fluctuations in
our operating results on a quarterly or annual basis if the ASPs of our products continue to decline.

Our ability to maintain or increase sales depends upon our ability to develop new products, penetrate new applications and end markets for fiber lasers and

maintain or increase our market share in existing applications.

Our level of sales will depend on our ability to generate sales of fiber lasers in new and developing markets and applications for lasers where they have not
been used previously and in applications in which other lasers, such as CO2 and YAG lasers, have been used. To date, a significant portion of our revenue growth
has been derived from sales of fiber lasers

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primarily  for  applications  where  CO2 and  YAG  lasers  historically  have  been  used.  We  have  made  significant  sales  into  the  cutting,  welding  and  marking  and
engraving applications, large applications where the use of other laser technologies was well established. As fiber lasers reach higher levels of penetration in core
materials processing applications and there is higher levels of competition in these core material processing application, the development of new applications, end
markets and products outside our core applications becomes more important to our ability to generate sales. In order to maintain or increase market demand for our
products, we will need to devote substantial resources to:

•

•

•

•

•

demonstrate the effectiveness of fiber lasers in new applications for materials processing, medical, communications or other applications such as cinema
and projection;

successfully develop new product lines, such as UV, visible and ultrafast fiber lasers, with competitive features that extend our product line;

increase our direct and indirect sales efforts;

effectively meet growing competition and pricing pressures; and

continue to reduce our manufacturing costs and enhance our competitive position.

Potential  customers  may  have  substantial  investments  and  know-how  related  to  their  existing  laser  and  non-laser  technologies.  They  may  perceive  risks
relating to the reliability, quality, usefulness and profitability of integrating of fiber lasers in their systems when compared to other laser or non-laser technologies
available  in the  market  or  that  they  manufacture  themselves.  Despite  fiber  lasers  having  better  performance  and  prices  compared  to  other  lasers  or tools,  OEM
customers may be reluctant to switch incumbent suppliers or we may miss the design cycles of our customers. Many of our target markets, such as the automotive,
machine tool and other manufacturing, communications and medical industries, have historically adopted new technologies slowly. These markets often require
long test and qualification periods or lengthy government approval processes before adopting new technologies.

If we are unable to successfully implement our strategy to develop new applications and end markets for our products or develop new products, our revenues,
operating results and financial condition could be adversely affected. In addition, any newly developed or enhanced products may not achieve market acceptance or
may be rendered obsolete or less competitive by the introduction of new products by other companies.

We depend on our OEM customers and system integrators to incorporate our products into their systems.

Our sales depend in part on our ability to maintain existing and secure new OEM customers. Our revenues also depend in part upon the ability of our current
and  potential  OEM  customers  and  system  integrators  to  incorporate  our  laser  and  amplifier  products.  The  commercial  success  of  these  systems  depends  to  a
substantial degree on the efforts of these OEM customers and system integrators to develop and market products that incorporate our technologies. Relationships
and experience with traditional laser makers, limited marketing resources, reluctance to invest in research and development and other factors affecting these OEM
customers  and  third-party  system  integrators  could  have  a  substantial  impact  upon  our  financial  results.  If  OEM  customers  or  integrators  are  not  able  to  adapt
existing tools or develop new systems to take advantage of the features and benefits of fiber lasers or if they perceive us to be an actual or potential competitor,
then the opportunities to increase our revenues and profitability may be severely limited or delayed. In addition, some of our OEM customers are developing their
own fiber laser sources. If they are successful, this may reduce our sales to these customers. Furthermore, if our OEM customers or third-party system integrators
experience financial or other difficulties that adversely affect their operations, our financial condition or results of operations may also be adversely affected.

Risks Relating to Our Operations

Our vertically integrated business results in high levels of fixed costs and inventory levels that may adversely impact our gross profits and our operating

results in the event that demand for our products declines or we maintain excess inventory levels.

We  have  a  high  fixed  cost  base  due  to  our  vertically  integrated  business  model.  Approximately  75%  of  our  approximately  6,060  employees  as  of
December  31,  2020  were  employed  in  our  manufacturing  operations.  We  may  not  adjust  these  fixed  costs  quickly  enough  or  sufficiently  to  adapt  to  rapidly
changing market conditions. Our gross profit, in absolute dollars and as a percentage of net sales, is impacted by our sales volume, the corresponding absorption of
fixed manufacturing overhead expenses and manufacturing yields. In addition, because we are a vertically integrated manufacturer and design and manufacture our
key specialty components, insufficient demand for our products may subject us to the risks of high inventory carrying costs and increased inventory obsolescence.
If our capacity and production levels are not properly sized in relation to expected demand, we may need to record write-downs for excess or obsolete inventory.
Because we are vertically integrated,

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the rate at which we turn inventory has historically been low when compared to our cost of sales. We do not expect this to change significantly in the future and
believe  that we will have to maintain  a relatively  high level of inventory compared  to our cost of sales. As a result, we expect to have a significant amount of
working  capital  invested  in inventory.  Changes  in  our  level  of inventory  lead  to  an  increase  in  cash generated  from  our  operations  when  inventory  is  sold  or  a
decrease in cash generated from our operations at times when the amount of inventory increases. Decreases in inventory may decrease our overhead absorption and
decrease our gross margins and profitability.

Our manufacturing capacity and operations may not be appropriate for future levels of demand and may adversely affect our gross margins.

We  have  added  and  are  continuing  to  add  substantial  manufacturing  capacity  at  our  facilities  in  the  United  States,  Germany,  Russia  and  Belarus.  A
significant portion of our manufacturing facilities and production equipment, such as our semiconductor production and processing equipment, diode packaging
equipment  and  diode  burn-in  stations,  are  special-purpose  in  nature  and  cannot  be  adapted  easily  to  make  other  products.  If  the  demand  for  fiber  lasers  or
amplifiers does not increase or if our revenue decreases from current levels, we may have significant excess manufacturing capacity and under-absorption of our
fixed costs, which could in turn adversely affect our gross margins and profitability.

To maintain our competitive position and to meet anticipated demand for our products, we invest significantly in the expansion of our manufacturing and
operations throughout the world and may do so in the future. We had capital expenditures of $88 million and $134 million in 2020 and 2019, respectively, and we
expect  to incur  approximately  $150 million  to $160 million  in capital  expenditures,  excluding  acquisitions,  in 2021. In connection  with these  projects,  we may
incur cost overruns, construction delays, project cancellations, labor difficulties or regulatory issues which could cause our capital expenditures to be higher than
what we currently anticipate,  possibly by a material  amount, which would in turn adversely impact our operating  results. Moreover, we may experience higher
costs due to yield loss, production inefficiencies and equipment problems until any operational issues associated with the opening of new manufacturing facilities
are resolved.

A few customers account for a significant portion of our sales, and if we lose any of these customers or they significantly curtail their purchases of our

products, our results of operations could be adversely affected.

We  rely  on  a  few  customers  for  a  significant  portion  of  our  sales.  In  the  aggregate,  our  top  five  customers  accounted  for  24%,  21%  and  26%  of  our
consolidated net sales in 2020, 2019 and 2018, respectively. Our largest customer is located in China and accounted for 8%, 9% and 12% of sales in 2020, 2019
and  2018,  respectively.  A  few  of  our  larger  customers,  including  our  largest  customer,  are  making  fiber  lasers  or  announced  plans  to  develop  fiber  lasers.  We
generally do not enter into agreements with our customers obligating them to purchase our fiber lasers or amplifiers. Our business is characterized by short-term
purchase  orders  and  shipment  schedules.  If  any  of  our  principal  customers  discontinues  its  relationship  with  us,  replaces  us  as  a  vendor  for  certain  products  or
suffers downturns in its business, our business and results of operations could be adversely affected.

Because we lack long-term purchase commitments from our customers, our sales can be difficult to predict, which could lead to excess or obsolete inventory

and adversely affect our operating results.

We  generally  do  not  enter  into  long-term  agreements  with  our  customers  obligating  them  to  purchase  our  fiber  lasers  or  amplifiers.  Our  business  is
characterized  by  short-term  purchase  orders  and  shipment  schedules  and,  in  some  cases,  orders  may  be  canceled  or  delayed  without  significant  penalty  or  any
penalty. As a result, it is difficult to forecast our revenues and to determine the appropriate levels of inventory required to meet future demand. In addition, due to
the absence of long-term volume purchase agreements, we forecast our revenues and plan our production and inventory levels based upon the demand forecasts of
our OEM customers, end users and distributors, which are highly unpredictable and can fluctuate substantially. This could lead to increased inventory levels and
increased carrying costs and risk of excess or obsolete inventory due to unanticipated reductions in purchases by our customers. In addition, provisions have been
recorded  as a result  of changes  in market  prices  of certain  components,  the value  of those inventories  that  was realizable  through finished  product  sales  due to
declines  in certain  end  market  demand  and  uncertainties  related  to the  recoverability  of  the value  of  inventories  due to  technological  and  product  changes,  and
excess quantities. In this regard, we recorded provisions for slow-moving, obsolete or excess inventory totaling $45.4 million, $38.9 million and $13.0 million in
2020,  2019  and  2018,  respectively.  If  our  OEM  customers,  end  users  or  distributors  fail  to  accurately  forecast  the  demand  for  our  products,  fail  to  accurately
forecast  the  timing  of  such  demand,  or  are  unable  to  consistently  negotiate  acceptable  purchase  order  terms  with  customers,  our  results  of  operations  may  be
adversely affected.

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We  depend  upon  internal  production  and  on  outside  single  or  limited-source  suppliers  for  many  of  our  key  components  and  raw  materials,  including
cutting-edge optics and materials. Any interruption in the supply or availability of these key components and raw materials could adversely affect our results of
operations.

We rely exclusively on our own production capabilities to manufacture certain of our key components, such as semiconductor diodes, specialty optical fibers
and optical components. We do not have redundant production lines for some of our components, such as our diodes and some other components, which are made
at  a  single  manufacturing  facility.  These  are  not  readily  available  from  other  sources  at  our  current  costs and  may  not  be  available  at all.  If  our  manufacturing
activities were obstructed or hampered significantly, it could take a considerable length of time, or it could increase our costs, to resume manufacturing or find
alternative sources of supply. Many of the tools and equipment we use are custom-designed, and it could take a significant period of time to repair or replace them.
Our four major manufacturing facilities are located in Massachusetts, Germany, Russia and Belarus. Despite our efforts to mitigate the impact of any flood, fire,
natural disaster, political unrest, act of terrorism, war, outbreak of disease or other similar event, our business could be adversely affected to the extent that we do
not  have  redundant  production  capabilities  if  any  of  our  major  manufacturing  facilities  or  equipment  should  become  inoperable,  inaccessible,  damaged  or
destroyed.

Also, we purchase certain raw materials used to manufacture our products and other components, such as semiconductor wafer substrates, diode packages,
modulators, micro-optics, bulk optics and high power beam delivery products, from single or limited-source suppliers. We typically purchase our components and
materials through purchase orders or agreed-upon terms and conditions and we do not have guaranteed supply arrangements with many of these suppliers. These
suppliers  are  relatively  small  private  companies  that  may  discontinue  their  operations  at  any  time  and  may  be  particularly  susceptible  to  prevailing  economic
conditions. Some of our suppliers are also our competitors. Some of our suppliers may not be able to meet demand from our growing business or because of global
demand for their components. As a result, we experienced and may in the future experience longer lead times or delays in fulfillment of our orders. Furthermore,
other than our current suppliers, there are a limited number of entities from whom we could obtain these supplies. We do not anticipate that we would be able to
purchase these components or raw materials that we require in a short period of time or at the same cost from other sources in commercial quantities or that have
our  required  performance  specifications.  Any  interruption  or  delay  in  the  supply  of  any  of  these  components  or  materials,  or  the  inability  to  obtain  these
components and materials from alternate sources at acceptable prices and within a reasonable amount of time, could adversely affect our business. If our suppliers
face financial or other difficulties, if our suppliers do not maintain sufficient inventory on hand or if there are significant changes in demand for the components
and materials we obtain from them, they could limit the availability of these components and materials to us, which in turn could adversely affect our business.

We may experience lower than expected manufacturing yields, which would adversely affect our gross margins.

The manufacture of semiconductor diodes and the packaging of them is a highly complex process. Manufacturers often encounter difficulties in achieving
acceptable product yields from diode and packaging operations. We have from time to time experienced lower than anticipated manufacturing yields for our diodes
and packaged diodes. This occurs during the production of new designs and the installation and start-up of new process technologies and new equipment. If we do
not achieve planned yields, our product costs could increase resulting in lower gross margins, and key component availability would decrease.

We are highly dependent on the significant experience and specialized expertise of our CEO, COO and other senior management and scientific staff. The
unavailability or loss of one or more of these key employees or our failure to attract other highly skilled personnel necessary to compete successfully could
harm our business and results of operations.

Our future success is substantially dependent on the continued service and performance of our executive officers, particularly our founder and chief executive
officer, Dr. Valentin P. Gapontsev, age 81, and our chief operating officer, Dr. Eugene Scherbakov, age 73. They play key roles setting our strategic direction,
directing  the  development  of  new  technologies  and  maintaining  our  culture.  The  unavailability  of  either  key  executive  could  have  a  material  impact  on  our
business. Although the board engages in executive succession planning, our inability to effectively and immediately transition knowledge or responsibilities to their
successors  in  the  event  of  an  unexpected  absence  or  departure  could  harm  our  business  and  disrupt  our operations.  We  also  rely  on our highly  trained  team  of
scientists, many of whom have numerous years of experience and specialized expertise in optical fibers, semiconductors and optical component technology, and
other key engineering, sales, marketing, manufacturing and support personnel, any of whom may depart for a variety of reasons, which could harm our business.
The members of our scientific staff who are expected to make significant individual contributions to our business are also members of our executive management
team. We will need to continue to recruit and retain highly skilled scientists and engineers for certain functions. Competition for qualified personnel in our industry
is intense, particularly for physicists, software engineers and other technical staff. If we fail to attract, integrate and retain the necessary personnel, it could

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delay the development or introduction of new products, negatively impact our ability to market, sell or support our products, and significantly harm our business.

Risks Relating to Intellectual Property, Litigation, Information Systems and Regulations

In the past, we were subject to litigation alleging that we infringed third-party intellectual property rights. Intellectual property claims could result in costly

litigation and harm our business.

There  has  been  significant  litigation  involving  intellectual  property  rights  in  many  technology-based  industries,  including  our  own.  We  face  risks  and
uncertainties in connection with such litigation, including the risk that patents issued to others may harm our ability to do business; that there could be existing
patents of which we are unaware that could be pertinent to our business; and that it is not possible for us to know whether there are patent applications pending that
our products might infringe upon. Moreover, the frequency with which new patents are granted and the diversity of jurisdictions in which they are granted make it
impractical and expensive for us to monitor all patents that may be relevant to our business.

From time to time, we have been notified of allegations and claims that we may be infringing patents or intellectual property rights owned by third parties.
We have defended against several patent infringement claims in the past and we engage in patent office opposition proceedings internationally for patents owned
by others.

There can be no assurance that we will be able to dispose without a material effect any claims or other allegations made or asserted in the future. Even if we
ultimately are successful on the merits of any such litigation or re-examination, legal and administrative proceedings related to intellectual property are typically
expensive and time-consuming, generate negative publicity and divert financial and managerial resources. Some litigants may have greater financial resources than
we have and may be able to sustain the costs of complex intellectual property litigation more easily than we can.

If we do not prevail in any intellectual property litigation brought against us, it could affect our ability to sell our products and materially harm our business,
financial condition and results of operations. These developments could adversely affect our ability to compete for customers and increase our revenues. Plaintiffs
in  intellectual  property  cases  often  seek,  and  sometimes  obtain,  injunctive  relief.  Intellectual  property  litigation  commenced  against  us  could  force  us  to  take
actions that could be harmful to our business, including the following:

•

•

•

stop selling our products or using the technology that contains the allegedly infringing intellectual property;

pay actual monetary damages, royalties, lost profits or increased damages and the plaintiff's attorneys' fees; and

attempt to license the relevant intellectual property which may not be available on reasonable terms.

In  addition,  intellectual  property  lawsuits  can be  brought  by  third  parties  against  OEMs and end  users  that  incorporate  our  products  into  their  systems  or
processes.  In  some  cases,  we  indemnify  OEMs  against  third-party  infringement  claims  relating  to  our  products  and  we  often  make  representations  affirming,
among other things, that our products do not infringe  the intellectual  property rights of others. As a result, we may incur liabilities  in connection with lawsuits
against our customers. Any such lawsuits, whether or not they have merit, could be time-consuming to defend, damage our reputation or result in substantial and
unanticipated costs.

Our inability to protect our intellectual property and proprietary technologies could result in the unauthorized use of our technologies by third parties, hurt

our competitive position and adversely affect our operating results.

We  rely  on  patents,  trade  secret  laws,  contractual  agreements,  technical  know-how  and  other  unpatented  proprietary  information  to  protect  our  products,
product development and manufacturing activities from unauthorized copying by third parties. Our patents do not cover all of our technologies, systems, products
and product components and may not prevent third parties from unauthorized copying of our technologies, products and product components. We have significant
international operations and are subject to foreign laws which differ in many respects from U.S. laws. Policing unauthorized use of our trade secret technologies
throughout the world and proving misappropriation of our technologies are particularly difficult, especially due to the number of our employees and operations in
numerous foreign countries. The steps that we take to acquire ownership of our employees' inventions and trade secrets in foreign countries may not have been
effective  under  all  such  local  laws,  which  could  expose  us  to  potential  claims  or  the  inability  to  protect  intellectual  property  developed  by  our  employees.
Furthermore,  any  changes  in,  or  unexpected  interpretations  of,  the  trade  secret  and  other  intellectual  property  laws  in  any  country  in  which  we  operate  may
adversely affect our ability to enforce our trade secret and intellectual property positions. Costly and time-consuming litigation could be necessary to determine the
scope  of  our  confidential  information  and  trade  secret  protection.  However,  there  can  be  no  assurance  that  confidentiality  agreements  we  enter  into  with
consultants, suppliers, employees and

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others will not be breached, that we will be able to effectively enforce them or that we will have adequate remedies for any breach.

Given  our  reliance  on  trade  secret  laws,  others  may  independently  develop  similar  or  alternative  technologies  or  duplicate  our  technologies  and
commercialize  discoveries  that  we  have  made.  Therefore,  our  intellectual  property  efforts  may  be  insufficient  to  maintain  our  competitive  advantage  or  to  stop
other parties from commercializing similar products or technologies. Many countries outside of the United States afford little or no protection to trade secrets and
other intellectual property rights. Intellectual property litigation can be time-consuming and expensive, and there is no guarantee that we will have the resources to
fully enforce our rights. If we are unable to prevent misappropriation or infringement of our intellectual property rights, or the independent development or design
of similar technologies, our competitive position and operating results could suffer.

Our  information  systems  are  subject  to  cyber-attacks,  interruptions  and  failures.  If  unauthorized  access  is  obtained  to  our  information  systems,  we  may

incur significant legal and financial exposure and liabilities.

Like many multinational corporations, we maintain several information technology systems, including software products licensed from third parties. These
systems vary from country to country. Any system, network or internet failures, misuse by system users, the hacking into or disruption caused by the unauthorized
access  by  third  parties  or  loss  of  license  rights  could  disrupt  our  ability  to  timely  and  accurately  manufacture  and  ship  products  or  to  report  our  financial
information  in  compliance  with  the  timelines  mandated  by  the  SEC.  Any  such  failure,  misuse,  hacking,  disruptions  or  loss  would  likely  cause  a  diversion  of
management's  attention  from  the  underlying  business  and  could  harm  our  operations.  In  addition,  a  significant  failure  of  our  various  information  technology
systems could adversely affect our ability to complete an evaluation of our internal controls and attestation activities pursuant to Section 404 of the Sarbanes-Oxley
Act of 2002 under the updated framework issued in 2013.

As part of our day-to-day business, we store our data and certain data about our customers, employees and service providers in our information technology
system. While our system is designed with access security, if a third party gains unauthorized access to our data or technology, including information regarding our
customers,  employees  and  service  providers,  such  security  breach  could  expose  us to  a  risk  of  loss  of  this  information,  loss  of  business,  litigation  and  possible
liability.  Our  security  measures  may  be  breached  as  a  result  of  third-party  action,  including  intentional  misconduct  by  computer  hackers,  employee  error,
malfeasance or otherwise. Additionally, third parties may attempt to fraudulently induce employees or customers into disclosing sensitive information such as user
names, passwords or other information in order to gain access to our customers' data or our data, including our intellectual property and other confidential business
information,  employee  information  or  our  information  technology  systems.  Because  the  techniques  used  to  obtain  unauthorized  access,  or  to  sabotage  systems,
change  frequently  and  generally  are  not  recognized  until  launched  against  a  target,  we  may  be  unable  to  anticipate  or  detect  these  techniques  or  to  implement
adequate preventative measures. Any unauthorized access could negatively impact our customers' products, result in a loss of confidence by our customers, damage
our  reputation,  disrupt  our  business,  result  in  a  misappropriation  of  our  assets  (including  cash),  lead  to  legal  liability  and  negatively  impact  our  future  sales.
Additionally, such actions could result in significant costs associated with loss of our intellectual property, impairment of our ability to conduct our operations,
rebuilding our network and systems, prosecuting and defending litigation, responding to regulatory inquiries or actions, paying damages or taking other remedial
steps.  In  addition,  we  may  incur  significant  costs  designed  to  prevent  or  mitigate  the  damage  related  to  cybersecurity  incidents.  For  instance,  we  may  retain
additional employees or consultants, implement new policies and procedures, and install information technology to detect and prevent identity theft, data breaches,
or  system  disruptions.  We  would  incur  any  such  costs  with  the  intent  that  proactively  preventing  a  cybersecurity  incident  ultimately  helps  to  mitigate  potential
cybersecurity  liability.  As  previously  disclosed,  on  September  14,  2020,  the  Company  detected  a  ransomware  attack  impacting  certain  of  our  operational  and
information technology systems that did not have a material impact on the Company's business, operations or financial condition.

The costs to address the foregoing security problems and security vulnerabilities before or after a cyber-incident could be significant. Our remediation efforts
may  not  be  successful  and  could  result  in  interruptions,  delays,  a  cessation  of  service,  and  a  loss  of  existing  or  potential  customers,  impeding  our  sales,
manufacturing, distribution, and other critical functions.

We may face particular privacy, data security and data protection risks due to laws and regulations regulating the protection or security of personal and

other sensitive data.

We may face particular privacy, data security and data protection risks due to laws and regulations regulating the protection or security of personal and other
sensitive data, including in particular several laws and regulations that have recently been enacted or adopted or are likely to be enacted or adopted in the future.
For instance, effective May 25, 2018, the European General Data Protection Regulation (“GDPR”) imposed additional obligations and risk upon our business and
substantially increased the penalties to which we could be subject in the event of any non-compliance. GDPR requires companies to satisfy

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new requirements regarding the handling of personal data (generally, of EU residents), including its use, protection and the rights of affected persons regarding
their data. Failure to comply with GDPR requirements could result in penalties of up to 4% of worldwide revenue. In addition, several other jurisdictions around
the world have recently enacted privacy laws or regulations similar to GDPR. For instance, California enacted the California Consumer Privacy Act (“CCPA”),
which became effective January 1, 2020, and which gives consumers many of the same rights as those available under GDPR. Several laws similar to the CCPA
have been proposed in the United States at both the federal and state level. GDPR and other similar laws and regulations, as well as any associated inquiries or
investigations  or  any  other  government  actions,  may  be  costly  to  comply  with,  result  in  negative  publicity,  increase  our  operating  costs,  require  significant
management time and attention, and subject us to remedies that may harm our business. We are evaluating its processes and taking measures to ensure compliance
with all applicable privacy and data protection-related laws and regulations. Due to the lack of experience with the interpretation and enforcement of many of these
laws and regulations, some measures initially might not satisfy standard or best practices that will be established in the coming years.

Changes in tax rates, tax liabilities or tax accounting rules could affect future results.

As  a  global  company,  we  are  subject  to  taxation  in  the  United  States  and  various  other  countries  and  jurisdictions.  Significant  judgment  is  required  to
determine worldwide tax liabilities. Our future tax rates could be affected by changes in the composition of earnings in countries or states with differing tax rates,
transfer  pricing  rules,  changes  in  the  valuation  of  our  deferred  tax  assets  and  liabilities,  or  changes  in  the  tax  laws.  In  addition,  we  are  subject  to  regular
examination of our income tax returns by the Internal Revenue Service ("IRS") and other tax authorities. From time to time the United States, foreign and state
governments make substantive changes to tax rules and the application of rules to companies, including various announcements from the United States government
potentially impacting our ability to defer taxes on international earnings. We regularly assess the likelihood of favorable or unfavorable outcomes resulting from
these examinations to determine the adequacy of our provision for income taxes. Although we believe our tax estimates are reasonable, there can be no assurance
that any final determination will not be materially different than the treatment reflected in our historical income tax provisions and accruals, which could materially
and adversely affect our operating results and financial condition.

If we or our third-party vendors fail to comply with FDA regulations or similar legal requirements in foreign jurisdictions relating to the manufacturing of
our products or any component part, we may be subject to fines, injunctions and penalties, and our ability to commercially distribute and sell our products may
be negatively impacted.

We  now  make  fiber  laser  systems  and  accessories  targeted  at  specific  medical  applications.  In  addition,  we  sell  our  commercial  fiber  and  diode  laser
modules,  subassemblies  and  systems  to  OEMs  that  incorporate  them  into  their  medical  products.  With  respect  to  such  products,  some  of  our  manufacturing
facilities, and the manufacturing facilities of any of our third-party component manufacturers or critical suppliers, are required to comply with the FDA’s Quality
System  Regulation  and  those  of  other  countries  (“QSR”),  which  sets  forth  minimum  standards  for  the  procedures,  execution  and  documentation  of  the  design,
testing, production, control, quality assurance, labeling, packaging, sterilization, storage, and shipping of the products we sell in the medical industry, and related
regulations, including Medical Device Reporting (“MDR”) regulations regarding reporting of certain malfunctions and adverse events potentially associated with
our products. The FDA and other regulatory agencies may evaluate our compliance with the QSR, MDR and other regulations, among other ways, through periodic
announced or unannounced inspections which could disrupt our operations and interrupt our manufacturing. If in conducting an inspection of our manufacturing
facilities, or the manufacturing facilities of any of our third-party component manufacturers or critical suppliers, an investigator from the FDA observes conditions
or practices believed to violate the QSR, the investigator may document their observations on a Form FDA 483 that is issued at the conclusion of the inspection. A
manufacturer that receives an FDA 483 may respond in writing and explain any corrective actions taken in response to the inspectional observations. The FDA will
typically  review  the  facility’s  written  response  and  may  re-inspect  to  determine  the  facility’s  compliance  with  the  QSR  and  other  applicable  regulatory
requirements.  Failure  to  take  adequate  and  timely  corrective  actions  to  remedy  objectionable  conditions  listed  on  an  FDA  483  could  result  in  the  FDA  taking
administrative or enforcement actions. Among these may be the FDA’s issuance of a Warning Letter to a manufacturer, which informs it that the FDA considers
the observed violations to be of “regulatory significance” that, if not corrected, could result in further enforcement action.

FDA enforcement actions, which include seizure, injunction, criminal prosecution, and civil penalties, could result in total or partial suspension of a facility’s
production  and/or  distribution,  product  recalls,  fines,  suspension  of  the  FDA’s  review  of  product  applications,  and/or  the  FDA’s  issuance  of  adverse  publicity.
Thus,  an  adverse  inspection  could  force  a  shutdown  of  our  manufacturing  operations  for  products  servicing  the  medical  industry  or  a  recall  of  such  products.
Adverse inspections could also delay FDA approval of our products for the medical industry.

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Failure to maintain effective internal controls may cause a loss of investor confidence in the reliability of our financial statements or to cause us to delay

filing our periodic reports with the SEC and adversely affect our stock price.

The SEC, as directed by Section 404 of the Sarbanes-Oxley Act of 2002, adopted rules requiring public companies to include a report of management on
internal control over financial reporting in their annual reports on Form 10-K that contain an assessment by management of the effectiveness of our internal control
over financial reporting. In addition, our independent registered public accounting firm must attest to and report on the effectiveness of our internal control over
financial reporting. We have experienced rapid growth and have extensive and complex international manufacturing  and sales and service locations which may
make us more vulnerable to weaknesses in our internal controls. Although we test our internal control over financial reporting in order to ensure compliance with
the  Section  404  requirements,  our  failure  to  maintain  adequate  internal  controls  over  financial  reporting  could  result  in  an  adverse  reaction  in  the  financial
marketplace due to a loss of investor confidence in the reliability of our financial statements or a delay in our ability to timely file our periodic reports with the
SEC, which ultimately could negatively impact our stock price.

Our products could contain defects, which may reduce sales of those products, harm market acceptance of our fiber laser and other products or result in

claims against us.

The manufacture of our products involves highly complex and precise processes. Despite testing by us and our customers, errors have been found, and may
be found in the future, in our products. These defects may cause us to incur significant warranty, support and repair costs, incur additional costs related to a recall,
divert the attention of our engineering personnel from our product development efforts and harm our relationships with our customers. These problems could result
in, among other things, loss of revenues or a delay in revenue recognition, loss of market share, harm to our reputation or a delay or loss of market acceptance of
our fiber laser products. Additionally, a recall, particularly in our products used or incorporated in medical devices, could result in significant costs and lost sales
and customers, enforcement actions and/or investigations by state and federal governments or other enforcement bodies, as well as negative publicity and damage
to our reputation that could reduce future demand for our products. The development and sale of medical devices and component products involves an inherent risk
of product liability claims. Defects, integration issues or other performance problems in our fiber laser and other products could also result in personal injury or
financial or other damages to our customers, which in turn could damage market acceptance of our products and result in significant product liability claims being
brought against us. A product liability claim brought against us, even if unsuccessful, could be time-consuming and costly to defend. If a product liability action
were determined against us, it could result in significant damages, including punitive damages, and our consolidated financial position, results of operations or cash
flows could be materially adversely affected.

We are subject to government regulations, including tariffs and duties that could restrict our international sales and negatively affect our business.

The United States, Germany, the European Union, China, Japan, South Korea and many other foreign governments impose tariffs and duties on the import of
products,  including  some  of  those  which  we  sell.  In  recent  years,  the  U.S.  instituted  and  proposed  changes  in  trade  policies  that  included  the  negotiation  or
termination of trade agreements, the imposition of higher tariffs on imports into the United States, including, in particular, on Chinese goods, economic sanctions
on individuals, corporations or countries and other government regulations affecting trade between the United States and other countries where we conduct our
business.

Policy changes and proposals could require time-consuming and expensive alterations to our business operations and may result in greater restrictions and
economic uncertainty and disincentives on international trade, which could negatively impact our competitiveness in jurisdictions around the world as well as lead
to an increase in costs in our supply chain. We are a multinational corporation, with manufacturing located both in the United States and internationally and with
approximately 80% of our net sales arising from foreign customers. As such, we may be more susceptible to negative impacts from these tariffs or change in trade
policies  than  other  less  internationally  focused  enterprises.  In  addition,  new  tariffs  and  other  changes  in  U.S.  trade  policy  could  trigger  retaliatory  actions  by
affected countries, and certain foreign governments, including the Chinese government (which has imposed retaliatory tariffs on a range of U.S. goods including
certain optical and electronic products and components), may impose trade sanctions on certain U.S. manufactured goods. Such changes by the United States and
other countries  have the potential  to adversely  impact  U.S. and worldwide economic  conditions, our industry and the global demand for our products, and as a
result, could negatively affect our business, financial condition and results of operations.

We must comply with and could be impacted by various export controls and trade and economic sanctions laws and regulations that could negatively affect

our business and may change due to diplomatic and political considerations outside of our control.

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A significant part of our business involves the export and import of components and products among many countries, including the U.S., Germany, Russia
and China. The U.S. government and governments of other countries in which we do business have Trade Controls that impact our ability to export, re-export or
transfer products, software and technology originating in those countries. Trade Controls may require that we obtain a license before we can export, re-export or
transfer certain products, software or technology. The requirement to obtain a license could put us at a competitive disadvantage by restricting our ability to sell
products  to  customers  in  certain  countries  or  by  giving  rise  to  delays  or  expenses  related  to  obtaining  a  license.  We  have  experienced  and,  in  the  future,  may
experience delays in obtaining export licenses based on issues solely within the control of the applicable government agency. Licenses may also include conditions
that limit the use, resale, transfer, re-export, modification, disassembly, or transfer of a product, software or technology after it is exported without first obtaining
permission from the relevant government agency. Failure to comply with these laws and regulations could result in government sanctions, including substantial
monetary  penalties,  denial  of  export  privileges,  debarment  from  government  contracts  and  a  loss  of  revenues.  Delays  in  obtaining  or  failure  to  obtain  required
export licenses may require us to defer shipments for substantial periods or cancel orders. Any of these circumstances could adversely affect our operations and, as
a result, our financial results could suffer.

We  have  a  large  manufacturing  facility  and  research  and  development  operations  in  Russia  which  supplies  components  to  our  U.S.  and  German
manufacturing  facilities.  In  addition,  we  supply  components  from  our  U.S.  and  German  manufacturing  facilities  to  our  Russian  facility.  Also,  all  three  such
facilities  provide  finished  products  to  China,  our  largest  market.  Should  there  be  any  disruption  of  our  supplies  from  or  to  our  Russian  operations,  should  the
United States, the European Union or Russia implement new or broad-based Trade Controls, including those directed at China, our production and/or deliveries as
well as results of operations  would be affected.  Although we have implemented  compliance  measures  designed to prevent transactions prohibited  by current  or
future Trade Controls, our failure to successfully comply with applicable Trade Controls may expose us to negative legal and business consequences, including
civil or criminal penalties, government investigations, and reputational harm.

In addition, Trade Controls and their implementation are fluid and may change due to diplomatic and political considerations outside of our control. Such
changes,  including  the  potential  expansion  of  sanctions  and  sanctions  designations,  as  well  as  public  statements  by  government  officials,  could  be  significant,
require us to take certain actions to be in compliance, adversely affect prevailing market prices of our common stock, have a reputational impact, or otherwise have
a material adverse impact on us, our business, and our ability to raise capital.

We are subject to various environmental laws and regulations that could impose substantial costs upon us and may adversely affect our business, operating

results and financial condition.

Some of our operations use substances regulated under various federal, state, local and international laws governing the environment, including those relating
to the storage, use, discharge, disposal, product composition and labeling of, and human exposure to, hazardous and toxic materials. We could incur costs, fines and
civil or criminal sanctions, third-party property damage or personal injury claims, or could be required to incur substantial investigation or remediation costs, if we
were  to  violate  or  become  liable  under  environmental  laws.  Compliance  with  current  or  future  environmental  laws  and  regulations  could  restrict  our  ability  to
expand our facilities or require us to acquire additional expensive equipment, modify our manufacturing processes, or incur other significant expenses in order to
remain in compliance with such laws and regulations. There can be no assurance that violations of environmental laws or regulations will not occur in the future as
a result of the lack of, or failure to obtain, permits, human error, accident, equipment failure or other causes.

Risks Relating to Our Common Stock

Dr. Valentin P. Gapontsev, our Chairman and Chief Executive Officer, and three trusts he created collectively  control approximately 31% of our voting
power and have a significant influence on the outcome of director elections and other matters requiring stockholder approval, including a change in corporate
control.

Dr. Valentin P. Gapontsev, our Chairman and Chief Executive Officer, and IP Fibre Devices (UK) Ltd., of which Dr. Gapontsev is the managing director,
together with three trusts he created beneficially own approximately 31% of our common stock. Trustees of the trusts are officers or employees of the Company.
Dr. Gapontsev and the trusts have a significant influence on the outcome of matters requiring stockholder approval, including election of our directors, stockholder
proposals  and  approval  of  significant  corporate  transactions.  Dr.  Gapontsev  and  the  trusts  may  vote  their  shares  of  our  common  stock  in  ways  that  other
stockholders may consider would be adverse to the interests of the other stockholders. These significant ownership interests could delay, prevent or cause a change
in control of the Company and might affect the market price of our common stock.

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Provisions in our charter documents and Delaware law, and our severance arrangements, could prevent or delay a change in control of our company, even

if a change in control would be beneficial to our stockholders.

Provisions of our certificate of incorporation and by-laws, including certain provisions that will take effect when Dr. Valentin P. Gapontsev (together with
his  affiliates  and  associates)  ceases  to  beneficially  own  an  aggregate  of  25%  or  more  of  our  outstanding  voting  securities,  may  discourage,  delay  or  prevent  a
merger,  acquisition  or  change  of  control,  even  if  it  would  be  beneficial  to  our  stockholders.  The  existence  of  these  provisions  could  also  limit  the  price  that
investors might be willing to pay in the future for shares of our common stock. These provisions include:

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•

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•

•

•

•

authorizing the issuance of "blank check" preferred stock;

establishing a classified board and providing that directors thereon may only be removed for cause;

providing that directors fill board vacancies;

prohibiting stockholder action by written consent;

limiting the ability of stockholders to call a special meeting of stockholders;

establishing advance notice requirements for nominations for election to the board of directors and for proposing matters to be submitted to a stockholder
vote;

supermajority stockholder approval to change certificate of incorporation and by-laws and

lack of cumulative voting for director elections.

Section 203 of the Delaware General Corporation Law, which will apply to the Company following such time as Dr. Gapontsev (together with his affiliates
and associates) ceases to beneficially own 25% or more of the total voting power of our outstanding shares, may prohibit business combinations with stockholders
owning  15%  or  more  of  our  outstanding  voting  stock.  The  terms  of  our  employment  agreements  and  severance  plan  with  executives  include  change-of-control
severance  provisions  which  provide  for  the  payment  of  cash  following  a  termination  of  employment  following  a  change  of  control.  These  provisions  may
discourage,  delay or prevent a merger  or acquisition,  make a merger  or acquisition  costlier  for a potential  acquirer,  or make removal  of incumbent  directors  or
officers more difficult.

General Risk Factors

We have experienced, and expect to experience in the future, fluctuations in our quarterly operating results. These fluctuations may increase the volatility

of our stock price and may be difficult to predict.

We have experienced, and expect to continue to experience, fluctuations in our quarterly operating results. We believe that fluctuations in quarterly results
may cause the market price of our common stock to fluctuate, perhaps substantially. Factors which may have an influence on our operating results in a particular
quarter include those below and others included in the Risk Factors:

•

•

•

•

•

•

•

•

•

•

•

•

the increase, decrease, cancellation or rescheduling of significant customer orders;

the timing of revenue recognition based on the installation or acceptance of certain products shipped to our customers;

the timing of customer qualification of our products and commencement of volume sales of systems that include our products;

the gain or loss of a key customer;

product or customer mix;

competitive pricing pressures and new market entrants;

our ability to design, manufacture and introduce new products on a cost-effective and timely basis;

our ability to manage our inventory levels and any provisions for excess or obsolete inventory;

our ability to collect outstanding accounts receivable balances;

incurring expenses to develop and improve application and support capabilities, the benefits of which may not be realized until future periods, if at all;

incurring expenses related to impairment of values for goodwill, intangibles and other long-lived assets;

different capital expenditure and budget cycles for our customers, which affect the timing of their spending;

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•

•

•

expenses associated with acquisition-related activities;

health pandemic; and

our ability to control expenses.

These  factors  make  it  difficult  for  us  to  accurately  predict  our  operating  results.  In  addition,  our  ability  to  accurately  predict  our  operating  results  is
complicated  by  the  fact  that  many  of  our  products  have  long  sales  cycles,  some  lasting  as  long  as  twelve  months  or  more.  Once  a  sale  is  made,  our  delivery
schedule typically ranges from four weeks to four months, and therefore our sales will often reflect orders shipped in the same quarter that they are received and
will not enhance our ability to predict our results for future quarters. In addition, long sales cycles may cause us to incur significant expenses without offsetting
revenues  since  customers  typically  expend  significant  effort  in  evaluating,  testing  and  qualifying  our  products  before  making  a  decision  to  purchase  them.
Moreover, customers may cancel or reschedule shipments, and production difficulties could delay shipments. Accordingly, our results of operations are subject to
significant fluctuations from quarter to quarter, and we may not be able to accurately predict when these fluctuations will occur.

Our inability to manage risks associated with our international customers and operations could adversely affect our business.

We  have  significant  facilities  in  and  our  products  are  sold  in  numerous  countries.  Our  principal  markets  include  China,  the  United  States,  Germany,
Switzerland, Japan, Italy, Korea, Turkey and Russia. A substantial majority of our revenues are derived from customers outside the United States. In addition, we
have substantial tangible assets outside of the United States. We anticipate that foreign sales will continue to account for a significant portion of our revenues in the
foreseeable future. Our operations and sales in these markets are subject to risks inherent in international business activities, including the following and others
mentioned in the Risk Factors:

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

fluctuations in the values of foreign currencies;

changes, including recession, and other general economic uncertainties affecting the macroeconomic and local economic communities in which we and
our customers operate or serve;

longer accounts receivable collection periods and less developed credit assessment and collection procedures;

compliance  with  domestic  and  foreign  laws  and  regulations,  unexpected  changes  in  those  laws  and  regulatory  requirements,  including  uncertainties
regarding  taxes,  tariffs,  quotas,  export  controls,  export  licenses,  trade  sanctions  and  other  trade  barriers,  and  any  corresponding  retaliatory  actions  by
affected countries, including China and Russia;

certification requirements;

less effective protection of intellectual property rights in some countries;

potentially adverse tax consequences;

different capital expenditure and budget cycles for our customers, which affect the timing of their spending;

political, legal and economic instability, foreign conflicts, labor unrest and the impact of regional and global infectious illnesses in the countries in which
we and our customers, suppliers, manufacturers and subcontractors are located;

preference for locally produced products;

difficulties and costs of staffing and managing international operations across different geographic areas and cultures;

seasonal reductions in business activities;

fluctuations in freight rates and transportation disruptions;

investment restrictions or requirements;

repatriation restrictions or requirements;

export and import restrictions; and

limitations on the ability of our employees to travel without restriction to certain countries in which we operate.

Political, economic and monetary instability and changes in governmental regulations or policies, including trade tariffs and protectionism, could adversely
affect both our ability to effectively operate our foreign sales offices and the ability of our foreign suppliers to supply us with required materials or services. Any
interruption or delay in the supply of our required components, products, materials or services, or our inability to obtain these components, materials, products or
services from

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alternate sources at acceptable prices and within a reasonable amount of time, could impair our ability to meet scheduled product deliveries to our customers and
could cause customers to cancel orders.

We are subject to risks of doing business in Russia through our subsidiary, NTO IRE-Polus, which provides components and test equipment to us and sells
finished fiber devices to customers in Russia and neighboring countries as well as finished lasers to China. Further, approximately 42% of our sales in 2020 were to
customers  in  China.  We  have  also  invested  in  manufacturing  facilities  in  Belarus.  The  results  of  our  operations,  business  prospects  and  facilities  in  these  three
countries are subject to the economic and political environment in Russia, China and Belarus. In recent years, these countries have undergone substantial political,
economic and social change. As is typical of an emerging economy, none of these three countries possess a well-developed business, financial, legal and regulatory
infrastructure  that  would  generally  exist  in  a  more  mature  free  market  economy.  In  addition,  tax,  currency  and  customs  legislation  is  subject  to  varying
interpretations and changes, which can occur frequently. The future economic direction of these emerging market countries remains largely dependent upon the
effectiveness of economic, financial and monetary measures undertaken by the government, together with tax, legal, regulatory and political developments. Our
failure to manage the risks associated with our operations in Russia, China and Belarus and our other existing and potential future international business operations
could have a material adverse effect upon our results of operations.

Foreign currency risk may negatively affect our net sales, cost of sales and operating margins and could result in exchange losses.

We  conduct  our  business  and  incur  costs  in  the  local  currency  of  most  countries  in  which  we  operate.  In  2020  our  net  sales  outside  the  United  States
represented a substantial majority of our total sales. We incur currency transaction risk whenever one of our operating subsidiaries enters into either a purchase or a
sales transaction using a different currency from the currency in which it operates or holds assets or liabilities in currencies different than their functional currency.
Changes in exchange rates can also affect our results of operations when the value of sales and expenses of foreign subsidiaries are translated to U.S. dollars. We
cannot accurately predict the impact of future exchange rate fluctuations on our results of operations. Further, given the volatility of exchange rates, we may not be
able to effectively manage our currency risks, and any volatility in currency exchange rates may increase the price of our products in local currency to our foreign
customers or increase the manufacturing cost of our products, which may have an adverse effect on our financial condition, cash flows and profitability.

We pursue acquisitions and investments in new businesses, products, patents or technologies. These involve risks which could disrupt our business and may

harm our financial results and condition.

We make acquisitions of and investments in new businesses, products, patents and technologies and expand into new geographic areas, or we may acquire
operations, products or technologies that expand our current capabilities. Although we have pursued relatively small acquisitions in the past, we may pursue larger
transactions  in  the  future.  Acquisitions  present  a  number  of  potential  risks  and  challenges  that  could,  if  not  met,  disrupt  our  business  operations,  increase  our
operating costs, reduce consolidated margins, cause us to incur impairment charges and reduce the value of the acquired company, asset or technology to us. We
may not be able to effectively integrate acquired businesses, business cultures, products, patents or technologies into our existing business and products, or retain
key employees. As a result of the rapid pace of technological change in our industry, we may misjudge the long-term potential of an acquired business, product,
patent or technology, or the acquisition may not be complementary to our existing business. Furthermore, potential acquisitions and investments, whether or not
consummated,  may  divert  our  management's  attention,  require  considerable  cash  outlays  at  the  expense  of  our  existing  operations,  incur  unanticipated  costs  or
liabilities, including the costs associated with improving the internal controls of the acquired company. In addition, to complete future acquisitions, we may issue
equity  securities,  incur  debt,  assume  contingent  liabilities  or  have  amortization  expenses  and  write-downs  of  acquired  assets,  which  could  adversely  affect  our
profitability and result in dilution to our existing and future stockholders.

We may incur impairments to goodwill or long-lived assets, which would negatively affect our results of operations.

We review our goodwill for impairment annually and other long-lived assets, including intangible assets identified in business combinations whenever events
or changes in circumstances  indicate that the carrying amount of these assets may not be recoverable.  Negative industry or economic trends, including reduced
estimates of future cash flows, disruptions to our business, slower growth rates, lack of growth in our relevant business units or differences in the estimated product
acceptance rates could lead to impairment charges against our long-lived assets, including goodwill and other intangible assets. For example, we recorded a non-
cash impairment charge of $44.6 million in 2020.

Our valuation methodology for assessing impairment requires management to make significant judgments and assumptions based on historical experience

and to rely heavily on projections of future operating performance at many points

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during  the  analysis.  Also,  the  process  of  evaluating  the  potential  impairment  of  goodwill  is  subjective.  We  operate  in  a  highly  competitive  environment  and
projections  of  future  operating  results  and  cash  flows  may  vary  significantly  from  actual  results.  Additionally,  if  our  analysis  indicates  potential  impairment  to
goodwill in one or more of our business units, we may be required to record additional charges to earnings in our financial statements, which could negatively
affect our results of operations.

We are exposed to credit risk and fluctuations in the market values of our cash, cash equivalents and marketable securities.

Given the global nature of our business, we have both domestic and international investments. At December 31, 2020, 74% of our cash, cash equivalents and
marketable securities were in the United States and 26% were outside the United States. Credit ratings and pricing of our investments can be negatively affected by
liquidity, credit deterioration, prevailing interest rates, financial results, economic risk, political risk, sovereign risk or other factors. Also, our investments may be
negatively affected by events that impact the banks or depositories that hold our investments. As a result, the value and liquidity of our cash, cash equivalents and
marketable  securities  may  fluctuate  substantially.  Therefore,  although  we have not  realized  any significant  losses on our  cash, cash  equivalents  and  marketable
securities, future fluctuations in their value could result in a significant realized loss.

Our ability  to access financial markets to raise capital or finance a portion of our working capital requirements and support our liquidity  needs may be
adversely  affected by factors beyond our control and could negatively impact our ability  to finance our operations, meet certain obligations, implement  our
operating strategy or complete acquisitions.

We occasionally borrow under our existing credit facilities to fund operations, including working capital investments. Our major credit lines in the United
States and Germany expire in April 2025 and July 2023, respectively. Uncertainty or disruptions in financial markets may negatively impact our ability to access
additional financing or to refinance our existing credit facilities or existing debt arrangements on favorable terms or at all, which could negatively affect our ability
to  fund  current  and  future  expansion  as  well  as  future  acquisitions  and  development.  These  disruptions  may  include  turmoil  in  the  financial  services  industry,
unprecedented  volatility  in  the  markets  where  our  outstanding  securities  trade,  changes  in  reference  rates  for  interest  such  as  the  scheduled  discontinuation  of
LIBOR in 2021 and general economic downturns in the areas where we do business. If we are unable to access funds at competitive rates, or if our short-term or
long-term borrowing costs increase, our ability to finance our operations, meet our short-term obligations and implement our operating strategy could be adversely
affected. We also may in the future be required to raise capital through public or private financing or other arrangements. Such financing may not be available on
acceptable terms, or at all, and our failure to raise capital when needed could harm our business.

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ITEM 1B.    UNRESOLVED STAFF COMMENTS

None.

ITEM 2.    PROPERTIES

Our significant facilities at December 31, 2020 include the following:

Location

Oxford, Massachusetts

Burbach, Germany

Fryazino, Russia

Minsk, Belarus

Marlborough, Massachusetts

Davenport, Iowa

Owned or
Leased

Owned

Owned

Owned

Leased

Owned

Owned

Owned
Leased

Lease Expiration

Approximate
Size (sq. ft.)

502,300

499,500

473,700

80,500

271,500

243,000

160,300
46,500

June 2021 - August
2022

March 2022

Primary Activity

Diodes, components, complete device manufacturing,
R&D, administration
Optical fiber, components, final assembly, complete
device manufacturing, R&D administration
Manufacturing, R&D, administration

Components, complete device manufacturing

Manufacturing
Components, manufacturing, applications, sales, R&D,
administration
Systems integration, administration
Systems integration, sales, administration

Our corporate headquarters is in Oxford, Massachusetts. As of December 31, 2020, we occupied more than 3.0 million square feet of facilities worldwide. Of
this we own 2.5 million square feet and lease 0.5 million square feet of building space, of which the majority is used for manufacturing. We operate four principal
manufacturing  facilities  for fiber  lasers,  laser  systems,  fiber  amplifiers,  and related  optical  and mechanical  components,  which are  located  in the United States,
Germany,  Russia  and  Belarus.  We  conduct  our  major  research  and  development  activities  in  Oxford  and  Marlborough,  Massachusetts;  Burbach,  Germany;  and
Fryazino, Russia.

We own additional facilities  and land for various purposes, such as sales and support and applications labs. We believe the existing facilities  are in good
operating condition and are suitable for the conduct of our operations. The productive capacity at our current facilities is substantially utilized. We plan to continue
the expansion of our operations and build manufacturing in Germany, the United States and Belarus to meet the demand for our products and our sales and support
needs.

ITEM 3.    LEGAL PROCEEDINGS

From time to time, we are party to various legal claims and legal proceedings and other disputes incidental to our business, such as employment, intellectual
property or product issues. For a discussion of the risks associated with intellectual property legal proceedings and other disputes, see Item 1A. "Risk Factors — In
the past, we were subject to litigation alleging that we infringed third-party intellectual property rights. Intellectual property claims could result in costly litigation
and harm our business."

ITEM 4.    MINE SAFETY DISCLOSURES

Not applicable.

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PART II

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

SECURITIES

Our common stock is quoted on the Nasdaq Global Select Market under the symbol "IPGP". As of February 19, 2021, there were 53,533,592 shares of our
common stock outstanding held by approximately 31 holders of record, which does not include beneficial owners of common stock whose shares are held in the
names of various securities brokers, dealers and registered clearing agencies.

Stock Price Performance Graph

The following Stock Price Performance Graph and related information includes comparisons required by the SEC. The graph does not constitute "soliciting
material"  and  should  not  be  deemed  "filed"  or  incorporated  by  reference  into  any  other  filings  under  the  Securities  Act  of  1933,  as  amended,  or  the  Securities
Exchange Act of 1934, as amended, except to the extent that we specifically incorporate this information by reference into such filing.

The following graph presents the cumulative shareholder returns for our Common Stock compared with the S&P 500 Index and the S&P 1500 Composite
1500 / Electronic Equipment Instruments & Components Index. We include the S&P 500 Index because we became a member of this index in 2018. We include
the S&P Composite 1500 / Electronic Equipment Instruments & Components Index because outstanding performance stock units awarded to executive officers use
this  index  when  comparing  total  shareholder  return  and  due  to  our  being  an  index  member,  industry  similarities,  our  internal  use  to  monitor  executive
compensation, and the fact that it contains several direct competitors.

Base Period
12/31/2015

12/31/2016

5-Year Cumulative Total Return
12/31/2018

12/31/2019

12/31/2017

12/31/2020

IPG Photonics Corporation
S&P 500 Index
S&P 1500 Composite / Electronic Equipment Instruments &
Components Index

$
$

$

100.00  $
100.00  $

110.71  $
111.96  $

240.16  $
136.40  $

128.98  $
129.31  $

161.42  $
171.94  $

251.00 
203.04 

100.00  $

129.69  $

168.06  $

144.95  $

195.01  $

241.56 

The  above  graph  represents  and  compares  the  value,  through  December  31,  2020,  of  a  hypothetical  investment  of  $100  made  at  the  closing  price  on
December 31, 2015 in each of (i) our common stock, (ii) S&P 500 Index, and (iii) the S&P 1500 Composite / Electronic Equipment Instruments & Components
Index, in each case assuming the reinvestment of dividends. The stock price performance shown in this graph is not necessarily indicative of, and not is intended to
suggest, future stock price performance.

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Table of Contents

Dividends

We  anticipate  that  we  will  retain  future  earnings  to  support  operations,  fund  acquisitions  and  to  finance  the  growth  and  development  of  our  business.
Therefore, we do not expect to pay cash dividends in the foreseeable future. Our payment of any future dividends will be at the discretion of our Board of Directors
after taking into account any business conditions, any contractual and legal restrictions on our payment of dividends, and our financial condition, operating results,
cash  needs,  growth  plans  and  other  factors.  In  addition,  a  current  agreement  with  one  lender  contains  a  restrictive  covenant  that  prohibits  us  from  paying  cash
dividends, making any distribution on any class of stock or making stock repurchases if a breach of a financial covenant or an event of default exists or would
result from the dividend, distribution or repurchase.

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

There have been no sales of unregistered securities during the past year.

Issuer Purchases of Equity Securities

The following table shows repurchases of our common stock in the fiscal quarter ended December 31, 2020:

Date
October 1, 2020 — October 31, 2020
November 1, 2020 — November 30, 2020
December 1, 2020 — December 31, 2020
Total

Total Number of
Shares (or Units)
Purchased

Average Price
Paid per Share (or
Unit)

(1), (2), (3)

(1), (2), (3)

(1), (2), (3)

63 
545 
53 
661 

$

$

195.33 
188.43 
209.03 
190.74 

Total Number of
Shares (or Units)
Purchased as Part of Publicly
Announced Plans or
Programs

Maximum Number (or
Approximate Dollar
Value) of Shares (or
Units) that May Yet Be
Purchased Under the
Plans or Programs

— 
— 
— 
— 

$

$

246,386 
246,386 
246,386 
246,386 

(1)

(2)

(3)

In  2012,  our  Board  of  Directors  approved  "withhold  to  cover"  as  a  tax  payment  method  for  vesting  of  restricted  stock  awards  for  certain  employees.
Pursuant to the "withhold to cover" method, we withheld from such employees the shares noted in the table above to cover tax withholding related to the
vesting of their awards. For the fourth quarter of 2020, the Company withheld 661 shares at an average price of $190.74.

On February 12, 2019, we announced that our Board of Directors authorized the purchase of up to $125 million of IPG common stock (the "February 2019
program") following the completion of our $125 million repurchase program authorized in July 2018. Under the February 2019 program, we are authorized
to  repurchase  shares  of  common  stock  in  an  amount  not  to  exceed  the  lesser  of  (a)  the  number  of  shares  issued  to  employees  and  directors  under  the
Company's various employee and director equity compensation and employee stock purchase plans from January 1, 2019 through December 31, 2020 and
(b) $125 million, exclusive of any fees, commissions or other expenses. There were no shares purchased in the fourth quarter of 2020 under the February
2019 program.

On May 5, 2020, we announced that our Board of Directors authorized the purchase of up to $200 million of IPG common stock (the "May 2020 program"),
exclusive of any fees, commissions or other expenses. The May 2020 program is separate from, and in addition to, the repurchases authorized under the
February 2019 program. There were no shares purchased in the fourth quarter of 2020 under the May 2020 program.

ITEM 6.    RESERVED

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

The  following  discussion  and  analysis  of  our  financial  condition  and  results  of  operations  should  be  read  in  conjunction  with  our  consolidated  financial
statements  and  related  notes  included  in  this  Annual  Report  on  Form  10-K.  This  discussion  contains  forward-looking  statements  that  involve  risks  and
uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of certain factors including, but not
limited to, those discussed under Item 1A, "Risk Factors."

Overview

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We  develop,  manufacture  and  sell  high-performance  fiber  lasers,  fiber  amplifiers  and  diode  lasers  that  are  used  for  diverse  applications,  primarily  in
materials processing. We also manufacture and sell complementary products used with our lasers including optical delivery cables, fiber couplers, beam switches,
optical  processing  heads,  in-line  sensors  and  chillers.  In  addition,  we  offer  laser-based  and  non-laser  based  systems  for  certain  markets  and  applications.  Our
portfolio  of  laser  solutions  are  used  in  materials  processing,  communications,  medical  and  advanced  applications.  We  sell  our  products  globally  to  original
equipment manufacturers ("OEMs"), system integrators and end users. We market our products internationally, primarily through our direct sales force. Our major
manufacturing facilities are located in the United States, Germany, Russia and Belarus. We have sales service offices and applications laboratories worldwide.

We are vertically integrated such that we design and manufacture most of the key components used in our finished products, from semiconductor diodes to
optical fiber preforms, finished fiber lasers, amplifiers and complementary products. Our vertically integrated operations allow us to reduce manufacturing costs,
control quality, rapidly develop and integrate advanced products and protect our proprietary technology.

Description of Our Net Sales, Costs and Expenses

Net sales. We derive net sales primarily from the sale of fiber lasers, diode lasers, laser and non-laser based systems, amplifiers and complementary products.
We sell our products to OEMs that supply materials processing laser systems, communications systems, medical laser systems and other laser systems to end users.
We also sell our laser products and laser and non-laser based systems to end users. Our scientists and engineers work closely with OEMs, systems integrators and
end users to analyze their system requirements and match appropriate fiber laser, amplifier or system specifications to those requirements. Our sales cycle varies
substantially, ranging from a period of a few weeks to as long as one year or more, but is typically several months.

Sales of our products are generally recognized upon shipment, provided that no obligations remain and collection of the receivable is reasonably assured.
Sales  of  customized  robotic  systems  are  recognized  over  time.  Our  sales  typically  are  made  on  a  purchase  order  basis  rather  than  through  long-term  purchase
commitments.

We develop our products to standard specifications  and use a common set of components within our product architectures.  Our major products are based
upon a common technology platform. We continually enhance these and other products by improving their components and developing new components and new
product designs.

Cost of sales. Our cost of sales consists primarily of the cost of raw materials and components, direct labor expenses and manufacturing overhead. We are
vertically integrated and currently manufacture all critical components for our products as well as assemble finished products. We believe our vertical integration
allows  us  to  increase  efficiencies,  leverage  our  scale  and  lower  our  cost  of  sales.  Cost  of  sales  also  includes  personnel  costs  and  overhead  related  to  our
manufacturing,  engineering  and  service  operations,  related  occupancy  and  equipment  costs,  shipping  costs  and  reserves  for  inventory  obsolescence  and  for
warranty obligations. Inventories are written off and charged to cost of sales when identified as excess or obsolete.

Due to our vertical integration strategy and ongoing investment in plant and machinery, we maintain a relatively high fixed manufacturing overhead. We may
not be able to or choose not to adjust these fixed costs to adapt to rapidly changing market conditions. Our gross margin is therefore significantly affected by our
sales volume and the corresponding utilization of capacity and absorption of fixed manufacturing overhead expenses.

Sales  and  marketing. Our  sales  and  marketing  expense  consists  primarily  of  costs  related  to  compensation,  trade  shows,  professional  and  technical

conferences, travel, facilities, depreciation of equipment used for demonstration purposes and other marketing costs.

Research and development. Our research and development expense consists primarily of compensation, development expenses related to the design of our
products  and  certain  components,  the  cost  of  materials  and  components  to  build  prototype  devices  for  testing  and  facilities  costs.  Costs  related  to  product
development are recorded as research and development expenses in the period in which they are incurred.

General  and  administrative. Our  general  and  administrative  expense  consists  primarily  of  compensation  and  associated  costs  for  executive  management,
finance,  legal,  human  resources,  information  technology  and  other  administrative  personnel,  outside  legal  and  professional  fees,  insurance  premiums  and  fees,
allocated facilities costs and other corporate expenses such as charges and benefits related to the change in allowance for doubtful debt.

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Factors and Trends That Affect Our Operations and Financial Results

In reading our financial statements, you should be aware of the following factors and trends that our management believes are important in understanding our

financial performance.

COVID-19 Update. Global demand trends have been impacted adversely by the ongoing COVID-19 pandemic and therefore remain uncertain at this time.
Economic  indicators  show  some  improvement  from  the  severe  contraction  experienced  earlier  in  2020, which  has  led  to  an  improvement  in  the  recent  demand
environment  in  certain  regions.  It  is  difficult  to  predict  whether  the  improvement  in  some  macro-economic  indicators  will  be  sustained  if  there  are  additional
restrictions imposed as a result of a resurgence in COVID-19 infections. This uncertainty continues to make forecasting our business challenging in the near to
medium-term.

Currently,  our  four  major  production  facilities  in  United  States,  Germany,  Russia  and  Belarus  remain  open  and  are  operating  normally.  We  have
implemented employee safety and sanitization protocols that have impacted productivity and efficiency. We have vertically integrated manufacturing, and many of
the components one facility supplies to another facility are single sourced internally and not available from third party suppliers, for example our semiconductor
diodes  manufactured  in  Oxford,  Massachusetts.  While  we  have  attempted  to  build  safety  stock  of  critical  components  at  our  various  locations,  if  government
restrictions  to  address  COVID-19  become  more  severe  than  we  have  experienced  to  date  or  if  there  was  significant  absenteeism  as  a  result  of  COVID-19  or
resurgence in the places where we operate, it could impact our internal supply chain. If our revenues are reduced for an extended period or if our production output
falls  because  of  government  restrictions  or  absenteeism,  we  may  be  required  to  reduce  payroll-related  costs  and  other  expenses  in  the  future  through  layoffs,
furloughs or reduced hours, even though we have not done so to date.

We have not experienced significant supply disruption from third party component suppliers; however, we may face some supply chain restraints related to
logistics, including available air cargo space and higher freight rates if there is a COVID-19 resurgence. We may experience delays in the future if resurgences are
experienced and governments implement new restrictions. We believe we have the ability to meet the near-term demand for our products, but the situation is fluid
and subject to change.

We continue to monitor the rapidly evolving conditions and circumstances as well as guidance from international and domestic authorities, including public
health authorities, and we may need to take additional actions based on their recommendations. The measures implemented by various authorities related to the
COVID-19 outbreak have caused us to change our business practices  including those related  to where employees work, the distance between employees  in our
facilities,  limitations  on  in-person  meetings  between  employees  and  with  customers,  suppliers,  service  providers,  and  stakeholders  as  well  as  restrictions  on
business travel to domestic and international locations or to attend trade shows, investor conferences and other events. To date, we have been able to accommodate
these  changes  to  our  business  operations  and  continue  to  meet  customer  demand.  If  guidelines  from  relevant  authorities  becomes  more  restrictive  due  to  a
resurgence of COVID-19 in a particular region, the effect on our operations could be more significant.

The COVID-19 pandemic has increased economic uncertainty and decreased demand for our products in many markets we serve and could continue for an
unknown period of time. In these circumstances, there may be developments outside of our control, including the length and extent of the COVID-19 outbreak and
government-imposed measures that may require us to adjust our operating plans. As such, given the dynamic nature of this situation, we cannot reasonably estimate
the future impacts of COVID-19 on our financial condition, results of operations or cash flows.

Net sales.  Our annual revenue growth rates have varied from year to year. Net sales decreased by 9% and 10% in 2020 and 2019, respectively, and increased
by 4% in 2018. In 2020, the decline in net sales was driven by decreased demand for our products related to the COVID-19 pandemic that extended and deepened
the weak macroeconomic environment prevailing at the end of 2019. In 2019, the decline in net sales was driven by decreased demand for our products related to
the trade war between the U.S. and China that weakened macroeconomic conditions in the second half of 2019. In addition to these factors, sales were affected by
declines in average sales prices related to competition. These reductions in sales were partially offset by the introduction of new products, including high power
and  ultra-fast  pulsed  lasers,  optical  heads  and  other  accessories  and  the  development  of  new  applications  for  our  products  some  of  which  displace  non-laser
technologies.

Our business depends substantially upon capital expenditures by end users, particularly by manufacturers using our products for materials processing, which
includes general manufacturing, automotive, other transportation, aerospace, heavy industry, consumer, semiconductor and electronics. Approximately 90% of our
revenues  in  2020  were  from  customers  using  our  products  for  materials  processing.  Although  applications  within  materials  processing  are  broad,  the  capital
equipment market in general is cyclical and historically has experienced sudden and severe downturns. For the foreseeable future, our operations will continue to
depend upon capital expenditures by end users of materials processing equipment and will be subject to the broader fluctuations of capital equipment spending.

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Our  net  sales  have  historically  fluctuated  from  quarter  to  quarter.  The  increase  or  decrease  in  sales  from  a  prior  quarter  can  be  affected  by  the  timing  of
orders received from customers, the shipment, installation and acceptance of products at our customers' facilities, the mix of OEM orders and one-time orders for
products with large purchase prices, competitive pressures, acquisitions, economic and political conditions in a certain country or region and seasonal factors such
as the purchasing patterns and levels of activity throughout the year in the regions where we operate. Net sales can be affected by the time taken to qualify our
products for use in new applications in the end markets that we serve. Our sales cycle varies substantially, ranging from a period of a few weeks to as long as one
year or more, but is typically several months. The adoption of our products by a new customer or qualification in a new application can lead to an increase in net
sales for a period, which may then slow until we penetrate new markets or obtain new customers.

In the recent years, our net sales have been negatively impacted by tariffs and trade policies. New tariffs and other changes in U.S. trade policy could trigger

retaliatory actions by affected countries, and certain foreign governments.

We  are  also  susceptible  to  global  or  regional  disruptions  such  as  political  instability,  geopolitical  conflicts,  acts  of  terrorism,  significant  fluctuations  in
currency values, natural disasters, macroeconomic concerns and particularly the impact of the COVID-19 outbreak that affect the level of capital expenditures or
global  commerce.  With  respect  to  the  COVID-19  outbreak  specifically,  our  2020  financial  results  were  negatively  impacted.  In  addition,  as  of  the  time  of  this
Annual Report on Form 10-K, we expect that COVID-19 could continue to negatively impact our businesses beyond 2020, but the extent and duration of such
impacts  over  the  longer  term  remain  uncertain  and  dependent  on  future  developments  that  cannot  be  accurately  predicted  at  this  time,  such  as  the  severity  and
transmission rate of the coronavirus, the extent and effectiveness of containment actions taken, the approval, effectiveness, timing and widespread inoculation of
the global population with new vaccines, and the impact of these and other factors on our customer base and general commercial activity.

The  average  selling  prices  of  our  products  generally  decrease  as  the  products  mature.  These  decreases  result  from  factors  such  as  increased  competition,
decreased manufacturing costs and increases in unit volumes. We may also reduce selling prices in order to penetrate new markets and applications. Furthermore,
we may negotiate discounted selling prices from time to time with certain customers that place high unit volume orders.

The secular shift to fiber laser technology in large materials processing applications, such as cutting applications, had a positive effect on our sales trends in
the past such that our sales trends were often better than other capital equipment manufacturers in both positive and negative economic cycles. As the secular shift
to fiber laser technology matures in such applications, our sales trends are more susceptible to economic cycles which affect other capital equipment manufacturers.

Gross margin. Our total gross margin in any period can be significantly affected by total net sales in any period, by competitive factors, by product mix, and

by other factors such as changes in foreign exchange rates relative to the U.S. Dollar, some of which are not under our control. For instance,

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As our products mature, we can experience additional competition which tends to decrease average selling prices and affects gross margin;

Our gross margin can be significantly affected by product mix. Within each of our product categories, the gross margin is generally higher for devices
with greater average power. These higher power products often have better performance, more difficult specifications to attain and fewer competing
products in the marketplace;

Higher power lasers also use a greater number of optical components, improving absorption of fixed overhead costs and enabling economies of scale in
manufacturing;

The gross margin for certain specialty products may be higher because there are fewer or sometimes no equivalent competing products;

Customers that purchase devices in greater unit volumes generally are provided lower prices per device than customers that purchase fewer units. In
general, lower selling prices to high unit volume customers reduce gross margin although this may be partially offset by improved absorption of fixed
overhead costs associated with larger product volumes, which drive economies of scale in manufacturing; and finally,

Gross  margin  on  systems  and  communication  components  can  be  lower  than  margins  for  our  laser  and  amplifier  sources,  depending  on  the
configuration, volume and competitive forces, among other factors.

We expect that some new technologies, products and systems will have returns above our cost of capital but may have gross margins below our corporate
average. If we are able to develop opportunities that are significant in size, competitively advantageous or leverage our existing technology base and leadership, our
current gross margin levels may not be maintained. Instead, we aim to deliver industry-leading levels of gross margins by growing sales, by taking market share in
existing

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markets, or by developing new applications and markets we address, by reducing the cost of our products and by optimizing the efficiency of our manufacturing
operations.  For  instance,  despite  the  decreases  in  sales  in  2020  and  2019,  manufacturing  levels  remained  high  and  our  facilities  increased  production  as  we
manufactured more optical power products at lower average selling prices.

We invested $87.7 million, $133.5 million and $160.3 million in capital expenditures in 2020, 2019 and 2018, respectively. Most of this investment relates to

expansion of our manufacturing capacity and, to a lesser extent, research and development and sales-related facilities.

A high proportion of our costs is fixed so costs are generally difficult to adjust or may take time to adjust in response to changes in demand. In addition, our
fixed costs increase as we expand our capacity. If we expand capacity faster than is required by sales growth, gross margins could be negatively affected. Gross
margins  generally  decline  if  production  volumes  are  lower  as  a  result  of  a  decrease  in  sales  or  a  reduction  in  inventory  because  the  absorption  of  fixed
manufacturing  costs  will  be  reduced.  Gross  margins  generally  improve  when  the  opposite  occurs.  If  both  sales  and  inventory  decrease  in  the  same  period,  the
decline in gross margin may be greater if we cannot reduce fixed costs or choose not to reduce fixed costs to match the decrease in the level of production. If we
experience a decline in sales that reduces absorption of our fixed costs, or if we have production issues, our gross margins will be negatively affected.

We also regularly review our inventory for items that are slow-moving, have been rendered obsolete or are determined to be excess. Any provision for such
slow-moving, obsolete or excess inventory affects our gross margins. For example, we recorded provisions for slow-moving, obsolete or excess inventory totaling
$45.4 million, $38.9 million and $13.0 million in 2020, 2019 and 2018, respectively.

Selling and general and administrative expenses. In the past, the Company has invested in selling and general and administrative costs in order to support
continued growth in the company. As the secular shift to fiber laser technology matures, our sales growth becomes more susceptible to the cyclical trends typical of
capital  equipment  manufacturers.  Accordingly,  our  future  management  of  and  investments  in  selling  and  general  and  administrative  expenses  will  also  be
influenced  by these trends, although  we may still  invest in selling  or general  and administrative  functions  to support certain  initiatives  even in economic  down
cycles.  Certain  general  and  administrative  expenses  are  not  related  to  the  level  of  sales  and  may  vary  quarter  to  quarter  based  primarily  upon  the  level  of
acquisitions and litigation.

Research  and  development  expenses.  We  plan  to  continue  to  invest  in  research  and  development  to  improve  our  existing  components  and  products  and
develop new components, products, systems and applications technology. We believe that these investments will sustain our position as a leader in the fiber laser
industry and will support development of new products that can address new markets and growth opportunities. The amount of research and development expense
we incur may vary from period to period.

Goodwill and long-lived assets impairments. We review our intangible assets and property, plant and equipment for impairment when events or changes in
circumstances  indicate  the  carrying  value  may  not  be  recoverable.  Goodwill  is  required  to  be  tested  for  impairment  at  least  annually.  Negative  industry  or
economic trends, including reduced estimates of future cash flows, disruptions to our business, slower growth rates, lack of growth in our relevant business units or
differences in the estimated product acceptance rates could lead to impairment charges against our long-lived assets, including goodwill and other intangible assets.
We  incurred  $0.7  million  and  $2.5  million  of  non-cash  impairment  charges  related  to  long-lived  assets  during  the  years  ended  December  31,  2020  and  2019,
respectively. There were no impairment charges recognized during the year ended December 31, 2018.

Our valuation methodology for assessing impairment requires management to make significant judgments and assumptions based on historical experience
and to rely heavily on projections of future operating performance at many points during the analysis. Also, the process of evaluating the potential impairment of
goodwill  is  subjective.  We  operate  in  a  highly  competitive  environment  and  projections  of  future  operating  results  and  cash  flows  may  vary  significantly  from
actual results. If our analysis indicates potential impairment to goodwill in one or more of our reporting units, we may be required to record charges to earnings in
our financial statements, which could negatively affect our results of operations.

As a result of the continued negative impact of COVID-19 on order flow for our Genesis custom system business, we performed an impairment analysis of
the goodwill during the third quarter of 2020. We performed a quantitative assessment using the discounted cash flow method under the income approach as well
as the guideline public company analysis and guideline transaction analysis under the market approach to estimate the fair value of the custom systems business.
As a result of this and to a lesser extent the overall performance of the business since its acquisition in 2018, we recognized a non-cash impairment loss of $44.6
million, which was equal to the carrying amount of goodwill prior to its impairment. The analysis considered internal forecasts of sales, profitability and capital
expenditures,  as  well  as  valuation  multiples  of  comparable  public  companies  and  valuation  multiples  of  transactions  of  comparable  companies. If  the  business
impacts of COVID-19 carry on for

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an  extended  period,  it  could  cause  us  to  recognize  additional  impairments  for  goodwill  and  certain  long-lived  assets,  including  amortizable  intangible  assets  or
right-of-use assets in one or more of our reporting units, which would negatively affect our results of operations.

Foreign exchange. Because we are a U.S. based company doing business globally, we have both translational and transactional exposure to fluctuations in
foreign currency exchange rates. Changes in the relative exchange rate between the U.S. dollar and the foreign currencies in which our subsidiaries operate directly
affects our sales, costs and earnings. Differences in the relative exchange rates between where we sell our products and where we incur manufacturing and other
operating  costs  (primarily  in  the  U.S.,  Germany  and  Russia)  also  affects  our  costs  and  earnings.  Certain  currencies  experiencing  significant  exchange  rate
fluctuations like the Euro, the Russian Ruble, the Japanese Yen and Chinese Yuan have had and could have an additional significant impact on our sales, costs and
earnings. Our ability to adjust the foreign currency selling prices of products in response to changes in exchange rates is limited and may not offset the impact of
the changes in exchange rates on the translated value of sales or costs. In addition, if we increase the selling price of our products in local currencies, this could
have a negative impact on the demand for our products.

Major customers. While we have historically depended on a few customers for a large percentage of our annual net sales, the composition of this group can
change from year to year. Net sales derived from our five largest customers as a percentage of our annual net sales were 24%, 21% and 26% in 2020, 2019 and
2018, respectively. Our largest customer accounted for 8%, 9% and 12% of our net sales in 2020, 2019 and 2018, respectively. The same customer accounted for
21% and 24% of our net accounts receivable as of December 31, 2020 and 2019, respectively. We seek to add new customers and to expand our relationships with
existing customers. We anticipate that the composition of our significant customers will continue to change. We generally do not enter into agreements with our
customers obligating them to purchase a fixed number or large volume of our fiber lasers or amplifiers. If any of our significant customers were to substantially
reduce their purchases from us, our results would be adversely affected.

Critical Accounting Policies and Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States ("GAAP") requires management to
make  estimates  and  assumptions  that  affect  the  reported  amounts  of  assets  and  liabilities  and  disclosure  of  contingent  assets  and  liabilities  at  the  date  of  the
financial  statements  and  the  reported  amounts  of  net  sales  and  expenses.  By  their  nature,  these  estimates  and  judgments  are  subject  to  an  inherent  degree  of
uncertainty. We base our estimates and judgments on our historical experience and on other assumptions that we believe are reasonable under the circumstances,
the results of which form the basis for making the judgments about the carrying values of assets and liabilities that are not readily apparent from other sources.
Actual results could differ from those estimates, which may materially affect our operating results and financial position. We have identified the following items
that require the most significant judgment and often involve complex estimation: revenue recognition, inventory valuation, warranty, accounting for income taxes
and goodwill and long-lived asset impairment.

Revenue Recognition. Revenue is recognized when transfer of control to the customer occurs in an amount reflecting the consideration that we expect to be
entitled. In order to achieve this core principle, we apply the following five step approach: (1) identify the contract with a customer, (2) identify the performance
obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance obligations in the contract, and (5) recognize
revenue when a performance obligation is satisfied.

We allocate the transaction price to each distinct product based on its relative standalone selling price, as more fully described in Note 1, "Nature of Business
and Summary of Significant Accounting Policies - Revenue Recognition," in our consolidated financial statements. Revenue is generally recognized when control
of the product is transferred to the customer (i.e., when our performance obligation is satisfied), which typically occurs at shipment, but which can occur over time
for certain of our systems contracts.  We also recognize  revenue over time for sales of extended warranties.  When goods or services have been delivered to the
customer, but all conditions for revenue recognition have not been met, deferred revenue and deferred costs are recorded on our consolidated balance sheet. We
enter into contracts to sell customized robotic systems, for which revenue is generally recognized over time, depending on the terms of the contract. Recognizing
revenue over time for these contracts is based on our judgment that the customized robotic system does not have an alternative use and we have an enforceable
right  to  payment  for  performance  completed  to  date.  Recognizing  revenue  over  time  also  requires  estimation  of  the  progress  towards  completion  based  on  the
projected costs for the contract.

Inventory.  Inventory  is  stated  at  the  lower  of  cost  (first-in,  first-out  method)  or  market  value.  Inventory  includes  parts  and  components  that  may  be
specialized  in  nature  and  subject  to  rapid  obsolescence.  We  maintain  a  reserve  for  excess  or  obsolete  inventory  items.  The  reserve  is  based  upon  a  review  of
inventory materials on hand, which we compare with historic usage, estimated future usage and age. In addition, we review the inventory and compare recorded
costs with estimates of current

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market  value. Write-downs  are recorded  to reduce the carrying  value to the net realizable  value with respect  to any part with costs in excess  of current  market
value.  Estimating  demand  and  current  market  values  is  inherently  difficult,  particularly  given  that  we  make  highly  specialized  components  and  products.  We
determine the valuation of excess and obsolete inventory by making our best estimate considering the current quantities of inventory on hand and our forecast of
the need for this inventory to support future sales of our products. We often have limited information on which to base our forecasts. If future sales differ from
these  forecasts,  the  valuation  of  excess  and  obsolete  inventory  may  change  and  additional  inventory  provisions  may  be  required.  Because  of  our  vertical
integration, a significant or sudden decrease in sales could result in a significant change in the estimates of excess or obsolete inventory valuation.

Warranty.  We  maintain  an  accrual  for  warranty  claims  for  units  sold  that  are  subject  to  warranty.  We  estimate  this  accrual  considering  past  claims
experience, the number of units still carrying warranty coverage and the average life of the remaining warranty period. A change in the rate of warranty repairs or
when warranty is generally incurred during the warranty period could change our estimated warranty accrual and associated warranty expense.

Income Taxes and Deferred Taxes. Our annual tax rate is based on our income, statutory tax rates and tax planning opportunities available to us in the various
jurisdictions in which we operate. We file federal and state income tax returns in the United States and tax returns in numerous international jurisdictions. We must
estimate our income tax expense after considering, among other factors, if inter-company transactions have been made on an arm’s length basis, differing tax rates
between  jurisdictions,  allocation  factors,  tax  credits,  nondeductible  items  and  changes  in  enacted  tax  rates.  Significant  judgment  is  required  in  determining  our
annual tax expense and in evaluating our tax positions. As we continue to expand globally, there is a risk that, due to complexity within and diversity among the
various jurisdictions in which we do business, a governmental agency may disagree with the manner in which we have computed our taxes. Additionally, due to the
lack  of  uniformity  among  all  of  the  foreign  and  domestic  taxing  authorities,  there  may  be  situations  where  the  tax  treatment  of  an  item  in  one  jurisdiction  is
different from the tax treatment in another jurisdiction or that the transaction causes a tax liability to arise in another jurisdiction.

We provide reserves for potential payments of tax to various tax authorities related to uncertain tax positions and other issues. Reserves recorded are based on
a determination of whether and how much of a tax benefit taken by us in our tax filings or positions is "more likely than not" to be realized following resolution of
any  potential  contingencies  present  related  to  the  tax  benefit,  assuming  that  the  matter  in  question  will  be  raised  by  the  tax  authorities.  Potential  interest  and
penalties associated with such uncertain tax positions is recorded as a component of income tax expense.

Goodwill and Long-lived Asset Impairment. We perform our annual goodwill impairment review as of the first day of our fourth quarter, or more frequently if
events or circumstances indicate it is more likely than not that the fair value of a reporting unit is less than its carrying amount. Such events and circumstances
could  include  significant  and  sustained  reductions  in  sales  volume,  margin,  profitability  or  cash  flows  of  the  reporting  unit  or  changes  in  market  dynamics,
including technology  or product changes.  We test reporting  units for impairment  by comparing  the estimated  fair  value of each  reporting  unit with its carrying
amount. Intangible assets and other long-lived assets are also subject to an impairment test if there is an indicator of impairment.

Fair value determinations require considerable judgment and are sensitive to changes in underlying assumptions, estimates, and market factors. Estimating
the fair value of individual reporting units requires us to make assumptions and estimates regarding our future plans, as well as industry, economic, and regulatory
conditions. These assumptions and estimates include estimated future annual net cash flows, income tax considerations, discount rates, growth rates, royalty rates,
contributory  asset  charges,  and  other  market  factors.  Assumptions  used  in  impairment  testing  are  made  at  a  point  in  time  and  require  significant  judgment;
therefore, they are subject to change based on the facts and circumstances present at each annual and interim impairment test date. Additionally, these assumptions
are generally interdependent and do not change in isolation. If current expectations of future growth rates and margins are not met, if market factors outside of our
control, such as discount rates, change, or if management’s expectations or plans otherwise change, then one or more of our reporting units might become impaired
in the future.

Definite-lived intangible assets are amortized on a straight-line basis over the estimated useful life. We review definite-lived intangible assets for impairment
when conditions  exist  that  indicate  the carrying  amount  of  the assets  may  not  be recoverable.  Such conditions  could include  significant  adverse  changes  in  the
business climate,  current-period  operating  or cash flow losses,  significant  declines  in forecasted  operations,  or a current  expectation  that  an asset  group will  be
disposed  of  before  the  end  of  its  useful  life.  We  perform  undiscounted  operating  cash  flow  analyses  to  determine  if  an  impairment  exists.  When  testing  for
impairment of definite-lived intangible assets held for use, we group assets at the lowest level for which cash flows are separately identifiable. If an impairment is
determined to exist, the loss is calculated based on estimated fair value.

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Results of Operations

The following table sets forth selected statement of operations data for the periods indicated in dollar amounts and expressed as a percentage of net sales: 

Net sales
Cost of sales
Gross profit
Operating expenses:

2020

Year Ended December 31,
2019
(In thousands, except percentages and per share data)

2018

$

1,200,724 
661,728 
538,996 

100.0 % $
55.1 
44.9 

1,314,581 
708,372 
606,209 

100.0 % $
53.9 
46.1 

1,459,874 
659,606 
800,268 

100.0 %
45.2 
54.8 

Sales and marketing
Research and development
General and administrative
Goodwill impairment
Impairment of long-lived assets and other restructuring
charges
Loss (gain) on foreign exchange

Total operating expenses

Operating income
Interest income, net
Other income, net
Income before provision for income taxes
Provision for income taxes
Net income
Less: net income attributable to non-controlling interest
Net income attributable to IPG Photonics Corporation

Net income attributable to IPG Photonics Corporation per share:

Basic
Diluted

Weighted average shares outstanding:

Basic
Diluted

$

$
$

70,583 
126,898 
110,005 
44,589 

1,177 
(12,915)
340,337 
198,659 
6,270 
763 
205,692 
45,354 
160,338 
766 
159,572 

3.00 
2.97 

53,186 
53,785 

5.9 
10.6 
9.2 
3.7 

0.1 
(1.1)
28.4 
16.5 
0.5 
0.1 
17.1 
3.8 
13.3 
0.1 

13.2 % $

$
$

77,745 
129,997 
107,597 
37,120 

7,130 
12,827 
372,416 
233,793 
14,238 
345 
248,376 
68,115 
180,261 
27 
180,234 

3.40 
3.35 

53,061 
53,839 

5.9 
9.9 
8.2 
2.8 

0.5 
1.0 
28.3 
17.8 
1.1 
— 
18.9 
5.2 
13.7 
— 

13.7 % $

$
$

57,815 
122,769 
102,429 
— 

— 
(6,150)
276,863 
523,405 
9,057 
1,933 
534,395 
130,226 
404,169 
142 
404,027 

7.55 
7.38 

53,522 
54,726 

4.0 
8.4 
7.0 
— 

— 
(0.4)
19.0 
35.9 
0.6 
0.1 
36.6 
(8.9)
27.7 
— 
27.7 %

Comparison of Year Ended December 31, 2020 to Year Ended December 31, 2019

Net sales. Net sales decreased by $113.9 million, or 8.7%, to $1,200.7 million in 2020 from $1,314.6 million in 2019. The table below sets forth sales by

application: 

Sales by Application
Materials Processing
Other Applications
Total

Year Ended December 31,

2020

2019

Change

(In thousands, except for percentages)

% of Total

% of Total

$

$

1,082,478 
118,246 
1,200,724 

90.2  % $
9.8  %
100.0  % $

1,229,211 
85,370 
1,314,581 

93.5  % $
6.5  %
100.0  % $

(146,733)
32,876 
(113,857)

(11.9)%
38.5 %
(8.7)%

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The table below sets forth sales by type of product and other revenue:

Sales by Product
High Power Continuous Wave ("CW") Lasers
Medium Power CW Lasers
Pulsed Lasers
Quasi-Continuous Wave ("QCW") Lasers
Laser and Non-Laser Systems
Other Revenue including Amplifiers, Service, Parts,
Accessories and Change in Deferred Revenue

Total

Materials processing

Year Ended December 31,

2020

2019

Change

(In thousands, except for percentages)

% of Total

% of Total

$

646,062 
50,796 
158,448 
50,333 
93,727 

53.8  % $
4.2  %
13.2  %
4.2  %
7.8  %

734,745 
56,625 
137,675 
56,440 
141,647 

55.9  % $
4.3  %
10.5  %
4.3  %
10.8  %

(88,683)
(5,829)
20,773 
(6,107)
(47,920)

201,358 
1,200,724 

$

16.8  %
100.0  % $

187,449 
1,314,581 

14.2  %
100.0  % $

13,909 
(113,857)

(12.1)%
(10.3)%
15.1 %
(10.8)%
(33.8)%

7.4 %
(8.7)%

Sales for materials processing applications decreased due to lower sales of high power lasers, laser and non-laser systems, QCW lasers and medium power

lasers, partially offset by increased sales in pulsed lasers.

•

High power laser sales for metal cutting and welding applications declined due to the impact of COVID-19 on end market demand, continued reductions
of  average  selling  prices  and  increased  competition.  Part  of  the  decline  in  average  selling  prices  for  high  power  lasers  is  due  to  the  adoption  of  more
compact  or  rack  mounted  "YLR"  series  lasers  which  are  displacing  1  to  3  kilowatt  "YLS"  series  lasers,  which  are  larger,  more  complex  and  more
expensive. These more compact YLR lasers are less expensive to manufacture and are sold at prices lower than the YLS series lasers they are displacing.

• Medium power laser sales decreased due to decreased demand in laser sintering for metal-based additive manufacturing and ongoing transition to kilowatt

scale cutting lasers.

•

•

•

•

Pulsed  laser  sales  increased  due  to  growth  in  sales  of  high  power  pulsed  lasers  used  for  battery  processing,  ablative  processing  and  solar  cell
manufacturing applications, partially offset by decreased demand of pulsed lasers used for marking and engraving applications.

QCW laser sales decreased due to lower demand for fine processing and consumer electronics applications.

Laser  and  non-laser  systems  sales  decreased  due  to  lower  demand  primarily  as  a  result  of  COVID-19.  The  reduction  of  revenue  in  laser  systems  was
attributable to lower demand for cutting and welding applications. The reduction of revenue in non-laser systems was attributable to lower demand in the
transportation and aerospace sectors.

Other Revenue for materials processing decreased due to lower parts and service revenue.

Other Applications

Sales from other applications increased due to increased demand for lasers used for directed energy, semiconductor, scientific and instrument applications, as

well as lasers used in medical procedures, partially offset by lower sales of telecom products.

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Table of Contents

Our net sales were derived from customers in the following geographic regions:

Sales by Geography
North America
Europe:

 (1)

Germany
Other including Eastern Europe/CIS

Asia and Australia:

China
Japan
Other

Rest of World
Total

Year Ended December 31,

2020

2019

Change

(In thousands, except for percentages)

% of Total

% of Total

$

246,189 

20.5 % $

280,886 

21.4 % $

(34,697)

(12.4)%

65,646 
219,540 

502,278 
53,180 
103,785 
10,106 
1,200,724 

$

5.5 %
18.3 %

41.8 %
4.4 %
8.6 %
0.9 %
100.0 % $

81,365 
249,871 

491,890 
71,757 
121,586 
17,226 
1,314,581 

6.2 %
19.0 %

(15,719)
(30,331)

37.4 %
5.5 %
9.2 %
1.3 %
100.0 % $

10,388 
(18,577)
(17,801)
(7,120)
(113,857)

(19.3)%
(12.1)%

2.1 %
(25.9)%
(14.6)%
(41.3)%
(8.7)%

(1)

 The substantial majority of sales in North America are to customers in the United States.

Cost of sales and gross margin. Cost of sales decreased by $46.7 million, or 6.6%, to $661.7 million in 2020 from $708.4 million in 2019. Our gross margin
decreased to 44.9% in 2020 from 46.1% in 2019. Gross margin decreased mainly due to increased manufacturing costs as a percentage of sales due to lower sales,
particularly in the first half of the year resulting from the impact of the COVID-19 pandemic. In addition, provisions for inventory reserves and freight costs were
higher. The increase in freight costs is also primarily attributable to COVID-19. Expenses related to provisions for excess or obsolete inventory and other valuation
adjustments increased by $6.5 million to $45.4 million, or 3.8% of sales, for the year ended December 31, 2020, as compared to $38.9 million, or 3.0% of sales, for
the year ended December 31, 2019.

Sales and marketing expense. Sales and marketing expense decreased by $7.1 million, or 9.1%, to $70.6 million in 2020 from $77.7 million in 2019. This
change  was primarily  a  result  of  decreased  spending  on  trade  fairs  and  exhibits,  travel  and  personnel  costs  partially  offset  by an  increase  in  depreciation.  As a
percentage of sales, sales and marketing expense was 5.9% in 2020, unchanged from 2019.

Research and development expense. Research and development expense decreased by $3.1 million, or 2.4%, to $126.9 million in 2020 from $130.0 million
in 2019. This change was primarily a result of decreases in R&D materials, consultants and travel partially offset by increases in personnel costs. As a percentage
of sales, research and development expense increased to 10.6% in 2020 from 9.9% in 2019. We expect to continue to invest in research and development and that
research and development expense will increase in the aggregate.

General and administrative expense. General and administrative expense increased by $2.4 million, or 2.2%, to $110.0 million in 2020 from $107.6 million
in 2019. This change was primarily a result of increases in personnel costs, loss on disposal of fixed assets, insurance, information systems, and premises partially
offset by decreases in expense for travel, bad debt provision, legal, and consultants. As a percentage of sales, general and administrative expense increased to 9.2%
in 2020 from 8.2% in 2019.

Goodwill  impairment,  impairment  of  long-lived  assets  and  other  restructuring  charges.  During  the  third  quarter  of  2020,  we  concluded  that  declines  in
revenue  and  order  flow  for  the  Genesis  custom  systems  business  caused  by  pandemic-related  decreases  in  capital  spending  in  the  aerospace  and  transportation
industries  were  a  triggering  event  requiring  a  goodwill  impairment  evaluation.  As  a  result  of  the  analysis,  we  incurred  a  non-cash  goodwill  impairment  loss  of
$44.6 million in 2020. In 2019, we incurred non-cash goodwill impairment losses of $37.1 million related to impairments of our transceivers reporting unit and our
submarine network division.

We incurred impairment of long-lived assets and other restructuring charges of $1.2 million in 2020, of which $0.4 million related to severance and $0.1
million related to lease termination costs that resulted from the restructuring of our submarine network division. We also incurred $0.7 million of non-cash long-
lived impairments related to machinery and equipment. In 2019, we incurred impairment of long-lived assets and other restructuring charges of $7.1 million, of
which $5.3 million related to non-cash impairment losses of long-lived assets and $1.8 million were charges related to global restructuring programs.

Effect of exchange rates on sales, gross margin and operating expenses. We estimate that if exchange rates had been the same as one year ago, sales in 2020

would have been $2.5 million lower, gross margin would have been $3.7 million lower and

40

 
 
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operating expenses in total would have been $6.2 million higher. These estimates assume constant exchange rates between fiscal year 2020 and fiscal year 2019
and are calculated using the average exchange rates for the twelve-month period ended December 31, 2019 for the respective currencies, which were US$1=Euro
0.89, US$1=Japanese Yen 109, US$1=Chinese Yuan 6.91 and US$1=Russian Ruble 65.

Loss (gain) on foreign exchange. We incurred a foreign exchange gain of $12.9 million in 2020 as compared to a loss of $12.8 million in 2019. The gain was
primarily attributable to the depreciation of the Russian Ruble and the appreciation of the Chinese Yuan as compared to the U.S. Dollar, which was partially offset
by a loss attributed to the appreciation of the Euro and depreciation of the Brazilian Real as compared to the U.S. Dollar.

Interest income, net. Interest income, net decreased to $6.3 million of income in 2020 compared to $14.2 million of income in 2019. The reduction in interest
income, net, is primarily due to a decrease in yields on shorter duration investments that resulted in lower market interest rates as compared to rates last year. In
addition, our initial response to the COVID-19 pandemic included holding shorter duration investments to increase liquidity, which also reduced yields.

Provision for income taxes. Provision for income taxes was $45.4 million in 2020 compared to $68.1 million in 2019, representing an effective tax rate of
22.0% in 2020 and 27.4% in 2019. The lower effective tax rate was primarily due to increased benefit from discrete adjustments. Discrete adjustments in 2020
resulted in a $10.6 million reduction in tax expense, which includes (i) $9.7 million for equity-based compensation deductions for tax in excess of the deductions
reflected in book income, (ii) $3.2 million for an investment credit in Russia requested in amended returns filed for prior years and (iii) $1.2 million for prior year
provision to return adjustments, offset by an increase to tax expense for a $3.6 million impact of losses in subsidiaries for which no tax benefit was taken. Discrete
adjustments in 2019 were $1.3 million and include a decrease to tax expense for (i) $5.1 million related to equity-based compensation deductions for tax in excess
of the deductions reflected in book income and (ii) $4.8 million for prior year provision to return adjustments, offset by an increase to tax expense of $10.0 million
for goodwill impairments losses which were not deductible for tax.

Net income attributed to IPG Photonics Corporation. Net income attributable to IPG Photonics Corporation decreased by $20.6 million to $159.6 million in
2020 from $180.2 million in 2019. Net income attributable to IPG Photonics Corporation as a percentage of our net sales decreased by 0.4% to 13.3% in 2020 from
13.7% in 2019 due to the factors described above.

Liquidity and Capital Resources

The following table presents our principal sources of liquidity:

Cash and cash equivalents
Short-term investments
Unused credit lines and overdraft facilities
Working capital (excluding cash and cash equivalents and short-term investments)

As of December 31,

2020

2019

(In thousands)

$

876,231  $
514,835 
132,048 
542,433 

680,070 
502,546 
105,469 
522,114 

Short-term  investments  at  December  31,  2020  consist  of  liquid  investments  including  corporate  bonds,  commercial  paper,  U.S.  Treasury  and  agency
obligations and municipal bonds with original maturities of greater than three months but less than one year. See Note 3, "Fair Value Measurements" in the notes to
the consolidated financial statements for further information about our short-term investments.

We expect to continue investments in capital expenditures, to assess acquisition opportunities and to repurchase shares of our stock in accordance with our
repurchase program. The extent and timing of such expenditures may vary from period to period. Our future long-term capital requirements will depend on many
factors including our level of sales, the impact of the economic environment on our growth including any ongoing impact of the COVID-19 pandemic on certain
global  or  regional  economies,  global  or  regional  recessions,  the  timing  and  extent  of  spending  to  support  development  efforts,  expansion  of  global  sales  and
marketing  activities,  government  regulation  including  trade  sanctions,  the  timing  and  introductions  of  new  products,  the  need  to  ensure  access  to  adequate
manufacturing capacity and the continuing market acceptance of our products.

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Table of Contents

The following table details our line-of-credit facilities and long-term notes as of December 31, 2020: 
Total Facility/ Note
$75.0 million

U.S. Revolving Line of Credit 

Description

(1)

Euro Credit Facility (Germany) 

(2)

Other Euro Facilities 

(3)

Long-term Secured Note 

(4)

Euro 50.0 million 
($61.3 million)

Euro 2.0 million 
($2.5 million)
$19.6 million

Long-term Unsecured Note 

(5)

$18.4 million

Interest Rate
LIBOR plus 0.80% to 1.20%,
depending on our performance
Euribor plus 0.75% or EONIA plus
1.00%

Maturity
April 2025

July 2023

Euribor plus 0.94% to 2.02%

March 2021

Fixed at 2.74%

1.20% above LIBOR, fixed using
an interest rate swap at 2.85% per
annum

July 2022

May 2023

Security
Unsecured

Unsecured, guaranteed by
parent company and German
subsidiary
Common pool of assets of
Italian subsidiary
Secured by the corporate
aircraft
Unsecured

(1) 

This facility is available to certain foreign subsidiaries in their respective local currencies. At December 31, 2020, there were no amounts drawn on this line,

however, there were $3.3 million of guarantees issued against the line which reduces total availability.

 This facility is available to certain foreign subsidiaries in their respective local currencies. At December 31, 2020, there were no drawings, however, there

were $3.4 million of guarantees issued against the line which reduces total availability.

 At December 31, 2020, there were no drawings. This facility renews annually.
 At maturity, the outstanding note balance will be $15.4 million.
 At maturity, the outstanding note balance will be $15.4 million.

(2)

(3)

(4)

(5)

Our largest committed credit lines are with Bank of America N.A. and Deutsche Bank AG in the amounts of $75.0 million and $61.3 million (or €50,000 as
described above), respectively, and neither of them is syndicated. We plan to seek amendments of our credit agreements and notes to modify LIBOR and Euribor
reference rates as these rates are phased out as borrowing rates.

We are required  to meet  certain  financial  covenants  associated  with our U.S. revolving line  of credit  and long-term  debt  facility.  These covenants,  tested
quarterly,  include  an  interest  coverage  ratio  and  a  funded  debt  to  earnings  before  interest,  taxes,  depreciation  and  amortization  ("EBITDA")  ratio.  The  interest
coverage  covenant  requires  that  we  maintain  a  trailing  twelve-month  ratio  of  EBITDA  to  interest  on  all  obligations  that  is  at  least  3.0:1.0.  The  funded  debt  to
EBITDA  covenant  requires  that  the  sum  of  all  indebtedness  for  borrowed  money  on  a  consolidated  basis  be  less  than  three  times  our  trailing  twelve  months
EBITDA. Funded debt is decreased by our cash and available marketable securities not classified as long-term investments in the U.S. in excess of $50 million up
to a maximum of $500 million. We were in compliance with all such financial covenants as of and for the three months ended December 31, 2020.

The financial covenants in our loan documents may cause us to not take or to delay investments and actions that we might otherwise undertake because of
limits on capital expenditures and amounts that we can borrow or lease. In the event that we do not comply with any one of these covenants, we would be in default
under the loan agreement or loan agreements, which may result in acceleration of the debt, cross-defaults on other debt or a reduction in available liquidity, any of
which could harm our results of operations and financial condition.

See Note 11, "Financing Arrangements" in the notes to the consolidated financial statements for further information about our facilities and term debt.

The following table presents cash flow activities:

Cash provided by operating activities
Cash used by investing activities
Cash used by financing activities

As of December 31,

2020

2019

(In thousands)

$

285,335  $
(99,574)
(10,080)

323,521 
(139,975)
(37,067)

Operating activities. Net cash provided by operating activities decreased by $38.2 million to $285.3 million in 2020 from $323.5 million in 2019. In 2020,
net sales and net income decreased by 9% and 11%, respectively. Our largest working capital items typically are inventory and accounts receivable. Items such as
accounts payable to third parties, prepaid expenses and other current assets and accrued expenses and other liabilities are not as significant as our working capital
investment in

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accounts receivable and inventory because of the amount of value added within IPG due to our vertically integrated structure. Accruals and payables for personnel
costs  including  bonuses  and  income  and  other  taxes  payable  are  largely  dependent  on  the  timing  of  payments  for  those  items.  The  decrease  in  cash  flow  from
operating activities in 2020 primarily resulted from a decrease in cash provided by net income after adding back non-cash charges, an increase in cash used by
accounts receivable, an increase in cash used by prepaid expenses and an increase in cash used by inventory; partially offset by a decrease in cash used for accrued
expenses, a decrease in cash used by income and other taxes payable and a decrease in cash used by accounts payable.

Investing activities. Net cash used in investing activities was $99.6 million and $140.0 million in 2020 and 2019, respectively. The cash used in investing
activities in 2020 related to $87.7 million for property, plant and equipment, $12.3 million of net purchases of investments and $0.4 million for the acquisition of a
business during 2020, net of cash acquired. The cash used in investing activities in 2019 related to $133.5 million for property, plant and equipment, and $15.1
million for the acquisition of a business during 2019, net of cash acquired; partially offset by $7.8 million of net proceeds of investments.

In  2021,  we  expect  to  incur  approximately  $150  million  to  $160  million  in  capital  expenditures,  excluding  acquisitions.  Capital  expenditures  include
investments in property, facilities and equipment to add capacity worldwide to support anticipated revenue growth, increase vertical integration, increase redundant
manufacturing  capacity  for  critical  components  and  enhance  research  and  development  capabilities.  The  timing  and  extent  of  any  capital  expenditures  in  and
between periods can have a significant effect on our cash flow. If we obtain financing for certain projects, our cash expenditures would be reduced in the year of
expenditure. Many of the capital expenditure projects that we undertake have long lead times and are difficult to cancel or defer to a later period.

Financing activities. Net cash used in financing activities was $10.1 million and $37.1 million in 2020 and 2019, respectively. The cash used in financing
activities in 2020 was primarily related to the purchase of treasury stock of $37.9 million, payments on our long-term borrowings of $3.7 million, and $1.7 million
of payment of a purchase price holdback from a business combination. These uses of cash were partially offset by net proceeds from the exercise of stock options
net of amounts disbursed in relation to shares withheld to cover employee income taxes due upon the vesting and release of restricted stock units and shares issued
under our employee stock purchase plan of $33.2 million. The cash used in financing activities in 2019 was primarily related to the purchase of treasury stock of
$40.7 million and payments on our long-term borrowings of $3.7 million. These cash uses were partially offset by net proceeds of $7.3 million from the exercise of
stock options net of amounts disbursed in relation to shares withheld to cover employee income taxes due upon the vesting and release of restricted stock units and
shares issued under our employee stock purchase plan.

Contractual Obligations and Off-Balance Sheet Arrangements

As of December 31, 2020, we had no off-balance sheet arrangements that have, or are reasonably likely to have, a current or future material effect on our
consolidated financial condition, results of operations, liquidity, capital expenditures or capital resources. The following summarizes our contractual obligations at
December 31, 2020 and the effect such obligations are expected to have on our liquidity and cash flow in future periods:

Operating lease obligations
Purchase obligations
Long-term debt obligations (including interest)
Contingent consideration

(1)

Total

(2)

Total

Less Than 1 Year

Payments Due in
1-3 Years
(In thousands)

3-5 Years

More Than 5 Years

$

$

27,517  $
51,730 
39,899 
1,963 
121,109  $

6,452  $

51,730 
4,821 
491 
63,494  $

8,427  $
— 
35,078 
1,472 
44,977  $

4,327  $
— 
— 
— 
4,327  $

8,311 
— 
— 
— 
8,311 

(1)

(2)

Interest for long-term debt obligations was calculated including the effect of our fixed rate amounts. The weighted average fixed rate amount was
2.79%.
Excludes obligations related to ASC 740, reserves for uncertain tax positions, because we are unable to provide a reasonable estimate of the timing of
future payments relating to the remainder of these obligations. See Note 17, "Income Taxes" to the consolidated financial statements.

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Recent Accounting Pronouncements

See Note 1, "Nature of Business and Summary of Significant Accounting Policies" in the notes to the consolidated financial statements for a full description
of  recent  accounting  pronouncements,  including  the  respective  dates  of  adoption  or  expected  adoption  and  effects  on  our  consolidated  financial  statements
contained in Part IV of this Annual Report.

ITEM 7A.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are exposed to market risk in the ordinary course of business, which consists primarily of interest rate risk associated with our cash and cash equivalents

and our debt and foreign exchange rate risk.

Interest rate risk. Certain interest rates are variable and fluctuate with current market conditions. Our investments have limited exposure to market risk. We
maintain  a  portfolio  of  cash,  cash  equivalents  and  short-term  investments,  consisting  primarily  of  bank  deposits,  money  market  funds,  certificates  of  deposit,
commercial paper, corporate notes and government and agency securities. None of these investments have a maturity date in excess of one year. Because of the
short-term  nature  of  these  instruments,  a  sudden  change  in  market  interest  rates  would not  be  expected  to  have  a  material  impact  on our  financial  condition  or
results of operations.

We are also exposed to market risk as a result of increases or decreases in the amount of interest expense we must pay on our bank debt and borrowings on
our  bank  credit  facilities.  Our  interest  obligations  on our  long-term  debt  are  fixed.  Although  our  U.S. revolving  line  of  credit  and  our  Euro  credit  facility  have
variable rates, we do not believe that a 10% change in market interest rates would have a material impact on our financial position or results of operations.

Exchange rates. Due to our international operations, a significant portion of our net sales, cost of sales and operating expenses are denominated in currencies
other than the U.S. Dollar, principally the Euro, the Russian Ruble, the Chinese Yuan and the Japanese Yen. As a result, our international operations give rise to
transactional market risk associated with exchange rate movements of the U.S. Dollar, the Euro, the Chinese Yuan, the Japanese Yen, and the Russian Ruble. In
2020 we incurred a gain on foreign exchange transactions of $12.9 million as compared to a loss of $12.8 million in 2019. As our Russian subsidiary has net U.S.
dollar denominated assets, the depreciation of the Russian Ruble contributed to most of the foreign exchange gain in 2020. Management attempts to minimize these
exposures by partially or fully off-setting foreign currency denominated assets and liabilities at our subsidiaries that operate in different functional currencies. The
effectiveness of this strategy can be limited by the volume of underlying transactions at various subsidiaries and by our ability to accelerate or delay inter-company
cash  settlements.  As  a  result,  we  are  unable  to  create  a  perfect  offset  of  the  foreign  currency  denominated  assets  and  liabilities.  Furthermore,  if  we  expect  a
currency movement to be beneficial to us in the short or medium term, we have, on occasions, chosen not to hedge or otherwise offset the underlying assets or
liabilities. However, it is difficult to predict foreign currency movements accurately.

At December 31, 2020, our material foreign currency exposure is net U.S. Dollar denominated assets at subsidiaries where the Euro or the Russian Ruble is
the functional  currency and U.S. Dollar denominated liabilities  where the Chinese Yuan is the functional currency. The net U.S. Dollar denominated  assets are
comprised  of  cash,  third  party  receivables  and  inter-company  receivables  offset  by  third  party  and  inter-company  U.S.  Dollar  denominated  payables.  The  U.S.
Dollar denominated liabilities are comprised of inter-company payables. A 5% change in the relative exchange rate of the U.S. Dollar to the Euro applied to the net
U.S.  Dollar  asset  balances  as  of  December  31,  2020,  would  result  in  a  foreign  exchange  gain  of  $8.9  million  if  the  U.S.  Dollar  appreciated  and  a  $8.9  million
foreign exchange loss if the U.S. Dollar depreciated. A 5% change in the relative exchange rate of the U.S. Dollar to the Ruble applied to the net U.S. Dollar asset
balances as of December 31, 2020, would result in a foreign exchange gain of $3.3 million if the U.S. Dollar appreciated and a $3.3 million foreign exchange loss
if  the  U.S. Dollar  depreciated.  A 5%  change  in  the  relative  exchange  rate  of  the  U.S. Dollar  to  the  Yuan applied  to the  net  U.S. Dollar  liability  balances  as  of
December 31, 2020, would result in a foreign exchange loss of $5.8 million if the U.S. Dollar appreciated and a $5.8 million foreign exchange gain if the U.S.
Dollar depreciated. It is possible that the COVID-19 pandemic may create additional volatility in exchange rates going forward.

In addition, we are exposed to foreign currency translation risk for those subsidiaries whose functional currency is not the U.S. Dollar as changes in the value
of their functional currency relative to the U.S. Dollar can adversely affect the translated amounts of our revenue, expenses, net income, assets and liabilities. As
discussed  in  our  Results  of  Operations,  this  can,  in  turn,  affect  the  reported  value  and  relative  growth  of  sales  and  net  income  from  one  period  to  the  next.  In
addition changes in the translated value of assets and liabilities due to changes in functional currency exchange rates relative to the U.S. Dollar result in foreign
currency translation adjustments that are a component of other comprehensive income or loss.

Foreign currency derivative instruments can also be used to hedge exposures and reduce the risks of certain foreign currency transactions; however, these
instruments provide only limited protection and can carry significant cost. We have no foreign currency derivative instrument hedges as of December 31, 2020. We
will continue to analyze our exposure to currency

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exchange rate fluctuations and may engage in financial hedging techniques in the future to attempt to minimize the effect of these potential fluctuations. Exchange
rate fluctuations may adversely affect our financial results in the future.

ITEM 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
F-1

This information is incorporated by reference from pages

through

F-33

of this report.

ITEM 9.    CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A.    CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Under the supervision of our Chief Executive Officer and our Chief Financial Officer, our management has evaluated the effectiveness of the design and
operation of our "disclosure controls and procedures" (as defined in Rules 13a-15(e) and 15d-15(e) promulgated under the Securities Exchange Act of 1934, as
amended  (the  "Exchange  Act")),  as  of  the  end  of  the  period  covered  by  this  Annual  Report  on  Form  10-K  (the  "Evaluation  Date")  utilizing  the  Committee  of
Sponsoring Organizations of the Treadway Commission's Internal Control - Integrated Framework ("COSO") Updated Framework issued in 2013. Based upon that
evaluation, our Chief Executive Officer and our Chief Financial Officer have concluded that, as of the Evaluation Date, our disclosure controls and procedures are
effective to ensure that information we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized and
reported within the time periods specified in the SEC's rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures
designed  to  ensure  that  information  required  to  be  disclosed  by  an  issuer  in  the  reports  that  it  files  or  submits  under  the  Exchange  Act  is  accumulated  and
communicated to the issuer's management, including its principal executive and principal financial officers, or persons performing similar functions, as appropriate
to allow timely decisions regarding required disclosure.

Management's Annual Report on Internal Control Over Financial Reporting

Our  management,  including  our  Chief  Executive  Officer  and  Chief  Financial  Officer,  is  responsible  for  establishing  and  maintaining  adequate  internal
control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Company and its subsidiaries. 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.  Our  management  conducted  an  assessment  of  the  effectiveness  of  our  internal
control over financial reporting as of the Evaluation Date based on criteria established in COSO utilizing the Updated Framework issued in 2013. Based on this
assessment, our management concluded that, as of the Evaluation Date, our internal control over financial reporting was effective.

Our independent registered public accounting firm, Deloitte & Touche LLP, has audited our internal control over financial reporting, as stated in their report

below.

Changes in Internal Controls

There was no change in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) that occurred during the last fiscal

quarter that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Limitations on Effectiveness of Controls

Our management, including our Chief Executive Officer and Chief Financial Officer, does not expect that the disclosure controls and procedures or internal
control  over  financial  reporting  will  prevent  or  detect  all  error  and  all  fraud.  A  control  system,  no  matter  how  well  designed  and  operated,  can  provide  only
reasonable,  not absolute,  assurance  that  the objectives  of the control system  are met.  Further,  the design of a control  system must reflect  the fact  that there  are
resource constraints, and the benefits of controls must be considered relative to their costs. Due to the inherent limitations in all control systems, no evaluation of
controls can provide absolute assurance that all control issues, errors and instances of fraud, if any, within the company have been or will be detected.

45

Table of Contents

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and the Board of Directors of
IPG Photonics Corporation
Oxford, Massachusetts

Opinion on Internal Control over Financial Reporting

We have audited the internal control over financial reporting of IPG Photonics Corporation and subsidiaries (the "Company") 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 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.

We  have  also  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board  (United  States)  (PCAOB),  the  consolidated
financial statements as of and for the year ended December 31, 2020, of the Company and our report dated February 22, 2021, expressed an unqualified opinion on
those financial statements.

Basis for Opinion

The Company's management is responsible 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  Control  Over  Financial  Reporting."  Our
responsibility is to express an opinion on the Company's internal control over financial reporting based on our audit. We are a public accounting firm registered
with the 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 audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding
of  internal  control  over  financial  reporting,  assessing  the  risk  that  a  material  weakness  exists,  testing  and  evaluating  the  design  and  operating  effectiveness  of
internal  control  based  on  the  assessed  risk,  and  performing  such  other  procedures  as  we  considered  necessary  in  the  circumstances.  We  believe  that  our  audit
provides a reasonable basis for our opinion.

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
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.

/s/    DELOITTE & TOUCHE LLP

Boston, Massachusetts
February 22, 2021

46

Table of Contents

ITEM 9B.    CONTROLS AND PROCEDURES

None.

PART III

ITEM 10.    DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

Certain of the information required hereunder is incorporated herein by reference to our definitive Proxy Statement to be filed pursuant to Regulation 14A,
which  Proxy  Statement  is  anticipated  to  be  filed  with  the  SEC  within  120  days  after  December  31,  2020.  Pursuant  to  General  Instruction  G(3)  of  Form  10-K,
additional information required hereunder relating to our executive officers is contained in Part I of this Annual Report on Form 10-K under the caption "Executive
Officers of the Registrant."

ITEM 11.    EXECUTIVE COMPENSATION

The  information  required  hereunder  is  incorporated  herein  by  reference  to  our  definitive  Proxy  Statement  to  be  filed  pursuant  to  Regulation  14A,  which

Proxy Statement is anticipated to be filed with the SEC within 120 days after December 31, 2020.

ITEM 12.   SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

The  information  required  hereunder  is  incorporated  herein  by  reference  to  our  definitive  Proxy  Statement  to  be  filed  pursuant  to  Regulation  14A,  which
Proxy  Statement  is  anticipated  to  be  filed  with  the  SEC  within  120  days  after  December  31,  2020,  with  the  exception  of  the  information  regarding  securities
authorized for issuance under our equity compensation plans, which is set forth below.

Information Regarding Equity Compensation Plans

The following table sets forth information with respect to securities authorized for issuance under our equity compensation plans as of December 31, 2020:

Plan Category
1
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, RSUs and
PSUs
(a)

1,685,235 
— 
1,685,235 

Weighted-Average
Exercise Price of
Outstanding
Options, RSUs and
PSUs
(b)

$

136.17 

Number of Securities Remaining
Available for Future Issuance under
Equity Compensation Plans
(Excluding Securities
Reflected in Column (a))
(c)

3,145,972 
— 
3,145,972 

1

 As of December 31, 2020, there were 2,851,428 shares available for future issuance under the 2006 Incentive Compensation Plan and 294,544 shares available for
future issuance under the employee stock purchase plan.

ITEM 13.   CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The  information  required  hereunder  is  incorporated  herein  by  reference  to  our  definitive  Proxy  Statement  to  be  filed  pursuant  to  Regulation  14A,  which

Proxy Statement is anticipated to be filed with the SEC within 120 days after December 31, 2020.

ITEM 14.   PRINCIPAL ACCOUNTING FEES AND SERVICES

The  information  required  hereunder  is  incorporated  herein  by  reference  to  our  definitive  Proxy  Statement  to  be  filed  pursuant  to  Regulation  14A,  which

Proxy Statement is anticipated to be filed with the SEC within 120 days after December 31, 2020.

PART IV

47

Table of Contents

ITEM 15.   EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

a. The following documents are filed as part of this Annual Report on Form 10-K:

1. Financial Statements.

See Index to Financial Statements on page F-1.

2. Financial Statement Schedules.

All schedules are omitted because they are not applicable or the required information is shown on the financial statements or notes thereto.

3. Exhibits.

48

 
Table of Contents

Exhibit Number
3.1

Description
Form of Second Amended and Restated Certificate of Incorporation of the Registrant (incorporated by reference to Exhibit 3.2
to the Registrant's Registration Statement No. 333-136521 filed with the Securities and Exchange Commission (the
"Commission") on August 11, 2006)

3.2

4.1

4.2

†
10.1

†
10.2

†
10.3

†
10.4

†
10.5

†
10.6

†
10.7

†
10.8

†
10.9

10.10

†

10.11

10.12

10.13

Amended and Restated Bylaws of the Registrant (incorporated by reference to Exhibit 3.2 to the Registrant's Current Report on
Form 8-K filed with the Commission on August 24, 2020)

Specimen Stock Certificate (incorporated by reference to Exhibit 4.1 to the Registrant's Registration Statement No. 333-
136521 filed with the Commission on November 14, 2006)

Description of the Registrant's Securities Registered under Section 12 of the Exchange Act (incorporated by reference to
Exhibit 4.2 to the Registrant's Annual Report on Form 10-K filed with the Commission on February 24, 2020)

2006 Incentive Compensation Plan, as amended (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report
on Form 8-K/A filed with the Commission on February 22, 2017)

IPG Photonics Corporation Non-Employee Director Compensation Plan, as amended (incorporated by reference to Exhibit
10.1 to the Registrant’s Current Report on Form 8-K filed with the Commission on February 21, 2020)

Senior Executive Annual Incentive Plan, as amended (incorporated by reference to Exhibit 10.2 to the Registrant's Current
Report on Form 8-K/A filed with the Commission on February 22, 2017)

IPG Photonics Corporation 2008 Employee Stock Purchase Plan, as amended and restated effective December 1, 2018
(incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed with the Commission on June
3, 2019)

Employment Agreement dated May 30, 2019 between the Registrant and Dr. Valentin P. Gapontsev (incorporated by reference
to Exhibit 10.5 to the Registrant's Annual Report on Form 10-K filed with the Commission on February 24, 2020)

Service Agreement dated May 30, 2019 between IPG Laser GmbH and Dr. Eugene Scherbakov (incorporated by reference to
Exhibit 10.6 to the Registrant's Annual Report on Form 10-K filed with the Commission on February 24, 2020)

Form of Employment Agreement dated May 30, 2019 between the Registrant and each of Timothy P.V. Mammen, Angelo P.
Lopresti and Alexander Ovtchinnikov (incorporated by reference to Exhibit 10.7 to the Registrant's Annual Report Form 10-K
filed with the Commission on February 24, 2020)

Form of Confidentiality, Non-Competition and Confirmatory Assignment Agreement between the Registrant and each of the
named executive officers and certain other executive officers, (incorporated by reference to Exhibit 10.4 to the Registrant's
Current Report on Form 8-K filed with the Commission on October 15, 2013)

Form of Letter amending Confidentiality, Non-Competition and Confirmatory Assignment Agreements between the Registrant
and each of the named executive officers and certain other executive officers (incorporated by reference to Exhibit 10.4 to the
Registrant's Current Report on Form 8-K/A filed with the Commission on February 22, 2017)

Form of Indemnification Agreement between the Registrant and each of its Directors and Executive Officers (incorporated by
reference to Exhibit 10.3 to Registrant's Current Report on Form 8-K/A filed with the Commission on February 22, 2017)

Second Amended and Restated Loan Agreement, between the Registrant and Bank of America, N.A. dated as of March 25,
2020 (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed with the Commission on
March 26, 2020)

Revolving Credit Note, between the Registrant and Bank of America, N.A., dated March 25, 2020 (incorporated by reference
to Exhibit 10.2 to the Registrant's Current Report on Form 8-K filed with the Commission on March 26, 2020)

Credit Facility Agreement between IPG Laser GmbH and Deutsche Bank AG, dated July 27, 2017 (incorporated by reference
to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed with the Commission on August 1, 2017)

49

  
  
  
  
  
  
 
 
  
  
  
Table of Contents

Exhibit Number
10.14

Description
Annex I to Credit Facility Agreement between IPG Laser GmbH and Deutsche Bank AG, dated July 27, 2017 (incorporated
by reference to Exhibit 10.2 on Current Report on Form 8-K filed with the Commission on August 1, 2017)

10.15

10.16

10.17

10.18

10.19

21.1

23.1

31.1

31.2

32.1

101.INS

101.SCH

101.CAL

101.DEF

101.LAB

101.PRE

104

Guarantee of the Registrant to Deutsche Bank dated July 27, 2017 (incorporated by reference to Exhibit 10.3 on Current
Report on Form 8-K filed with the Commission on August 1, 2017)

First Amendment to Credit Facility Agreement between IPG Laser GmbH and Deutsche Bank AG, dated April 20, 2020
(incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed with the Commission on
April 23, 2020)

Loan and Aircraft Security Agreement between TVPX Aircraft Solutions, as Trustee under the Trust Pledge Agreement
between Registrant and Trustee dated July 27, 2017, and Banc of America Leasing & Capital, LLC dated July 27, 2017
(incorporated by reference to Exhibit 10.22 to the Registrant's Annual Report on Form 10-K filed with the Commission on
February 28, 2018)

Promissory Note between TVPX Aircraft Solutions dated July 27, 2017, as Trustee under the Trust Pledge Agreement
between Registrant and Trustee dated July 27, 2017, and Banc of America Leasing & Capital, LLC dated July 27, 2017
(incorporated by reference to Exhibit 10.23 to the Registrant's Annual Report on Form 10-K filed with the Commission on
February 28, 2018)

Guaranty of the Registrant to Banc of America Lease & Capital, LLC, dated July 27, 2017 (incorporated by reference to
Exhibit 10.24 to the Registrant's Annual Report on Form 10-K filed with the Commission on February 28, 2018)

List of Subsidiaries

Consent of Deloitte & Touche LLP

Certification of Chief Executive Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended

Certification of Chief Financial Officer pursuant to Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended

Certification of Chief Executive Officer and Chief Financial Officer pursuant to Section 1350

XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are
embedded within the Inline XBRL document

XBRL Taxonomy Extension Schema

XBRL Taxonomy Extension Calculation Linkbase

XBRL Taxonomy Definition Linkbase

XBRL Taxonomy Extension Label Linkbase

XBRL Taxonomy Extension Presentation Linkbase

Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

† Identifies management contract or compensatory plans or arrangements required to be filed as an exhibit.

b. Exhibits.

See (a)(3) above.

c. Additional Financial Statement Schedules.

All schedules are omitted because they are not applicable or the required information is shown on the financial statements or notes thereto.

ITEM 16.   FORM 10-K SUMMARY

None.

50

  
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, on February 22, 2021. 

SIGNATURES

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 and on the dates indicated.

IPG PHOTONICS CORPORATION

By:

/s/    Valentin P. Gapontsev
Valentin P. Gapontsev
Chief Executive Officer and
Chairman of the Board

Signature

Title

/s/    Valentin P. Gapontsev        
Valentin P. Gapontsev

Chief Executive Officer, Chairman of the Board and Director
(Principal Executive Officer)

/s/    Timothy P.V. Mammen        
Timothy P.V. Mammen

/s/    Thomas J. Burgomaster        
Thomas J. Burgomaster

/s/    Michael C. Child        
Michael C. Child

/s/    Jeanmarie F. Desmond     
   Jeanmarie F. Desmond

/s/    Gregory P. Dougherty     
   Gregory P. Dougherty

/s/    Catherine P. Lego        
Catherine P. Lego

/s/    Eric Meurice        
Eric Meurice

/s/    Natalia Pavlova        
Natalia Pavlova

/s/    John R. Peeler        
John Peeler

/s/    Eugene A. Scherbakov        
Eugene Scherbakov

Senior Vice President, Chief Financial Officer (Principal
Financial Officer)

Vice President, Corporate Controller 
(Principal Accounting Officer)

Director

Director

Director

Director

Director

Director

Director

Director

51

February 22, 2021

February 22, 2021

February 22, 2021

February 22, 2021

February 22, 2021

February 22, 2021

February 22, 2021

February 22, 2021

February 22, 2021

February 22, 2021

February 22, 2021

 
 
  
 
  
  
 
  
 
  
 
  
 
  
 
  
 
  
 
Table of Contents

INDEX TO FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm
Consolidated Balance Sheets as of December 31, 2020 and 2019
Consolidated Statements of Income for the Years Ended December 31, 2020, 2019, and 2018
Consolidated Statements of Comprehensive Income for the Years Ended December 31, 2020, 2019, and 2018
Consolidated Statements of Equity 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
Notes to Consolidated Financial Statements

F-2
F-4
F-5
F-6
F-7
F-8
F-9

F-1

 
Table of Contents

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and the Board of Directors of
IPG Photonics Corporation
Oxford, Massachusetts

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of IPG Photonics Corporation and subsidiaries (the "Company") as of December 31, 2020
and  2019,  the  related  consolidated  statements  of  income,  comprehensive  income,  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").  In  our  opinion,  the  financial  statements  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.

We  have  also  audited,  in  accordance  with  the  standards  of  the  Public  Company  Accounting  Oversight  Board  (United  States)  (PCAOB),  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 and our report dated February 22, 2021, expressed an unqualified opinion on the Company's
internal control over financial reporting.

Basis for Opinion

These  financial  statements  are  the  responsibility  of  the  Company's  management.  Our  responsibility  is  to  express  an  opinion  on  the  Company's  financial
statements based on our audits. We are a public accounting firm registered with the 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 audit to obtain reasonable
assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to
assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that 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. We believe
that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

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  critical  audit  matters  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.

Excess or Obsolete Inventory Reserve: Refer to Notes 1 and 4 to the Financial Statements

Critical Audit Matter Description

The Company evaluates  inventory  each reporting  period  for excess  quantities  and obsolescence,  establishing  reserves  when necessary  based upon historic
usage, estimated future usage and age. Once recorded, these reserves are considered permanent adjustments to the carrying value of inventory. As of December 31,
2020, the Company has inventories of $365.0 million, net of excess quantities and obsolescence reserves.

We  identified  the  reserve  for  excess  quantities  and  obsolete  inventory  as  a  critical  audit  matter  because  of  the  significant  estimates  and  assumptions
management makes to quantify and to record the reserve, including the determination of expected demand, especially when considering the vertically integrated
nature of the Company as well as parts subject to technological obsolescence. This required a high degree of auditor judgment and an increased extent of effort
when performing audit procedures to evaluate the methodology and the reasonableness of assumptions including expected demand.

F-2

Table of Contents

How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures related to management’s judgments underlying the calculation of excess or obsolete inventory reserve, included the following, among others:

• We tested the effectiveness of controls over inventory, including those over the estimation of reserves for excess quantities and obsolescence.

• We evaluated the reasonableness of the Company's excess and obsolete reserve policy, considering historical experience and the underlying assumptions.

• We tested the calculation of the excess and obsolete reserve pursuant to the Company's policy, including the completeness and accuracy of the data used

in the calculation.

• We evaluated management's ability to accurately estimate future demand by comparing actual inventory usage, on a sample basis, to estimates made in

prior years.

• We  considered  the  existence  of  contradictory  evidence  based  on  consideration  of  internal  communication  to  management  and  the  board  of  directors,

Company press releases, and analysts' reports, as well as any changes within the business.

/s/    DELOITTE & TOUCHE LLP

Boston, Massachusetts
February 22, 2021

We have served as the Company's auditor since 1999.

F-3

IPG PHOTONICS CORPORATION

CONSOLIDATED BALANCE SHEETS

ASSETS

LIABILITIES AND EQUITY

Table of Contents

Current assets:

Cash and cash equivalents
Short-term investments
Accounts receivable, net
Inventories
Prepaid income taxes
Prepaid expenses and other current assets

Total current assets

Deferred income taxes, net
Goodwill
Intangible assets, net
Property, plant and equipment, net
Other assets
Total assets

Current liabilities:

Current portion of long-term debt
Accounts payable
Accrued expenses and other liabilities
Income taxes payable

Total current liabilities

Deferred income taxes and other long-term liabilities
Long-term debt, net of current portion

Total liabilities

Commitments and contingencies (Note 14)
IPG Photonics Corporation equity:

Common stock, $0.0001 par value, 175,000,000 shares authorized; 55,461,246 and 53,427,234 shares issued and
outstanding, respectively, at December 31, 2020; 54,743,227 and 53,010,875 shares issued and outstanding,
respectively, at December 31, 2019.
Treasury stock, at cost, 2,034,012 and 1,732,352 shares held at December 31, 2020 and December 31, 2019,
respectively.
Additional paid-in capital
Retained earnings
Accumulated other comprehensive loss

Total IPG Photonics Corporation stockholders' equity

Non-controlling interests

Total equity

Total liabilities and equity

See notes to consolidated financial statements.

F-4

December 31,

2020
2019
(In thousands, except share
and per share data)

876,231  $
514,835 
264,321 
364,993 
69,893 
57,804 
2,148,077 
43,197 
41,366 
62,114 
597,527 
43,419 
2,935,700  $

3,810  $
25,748 
176,740 
8,280 
214,578 
92,854 
34,157 
341,589 

680,070 
502,546 
238,479 
380,790 
38,873 
55,876 
1,896,634 
31,395 
82,092 
74,271 
600,852 
45,192 
2,730,436 

3,740 
27,329 
149,782 
11,053 
191,904 
98,121 
37,968 
327,993 

6 

5 

(303,614)
854,301 
2,188,191 
(146,065)
2,592,819 
1,292 
2,594,111 
2,935,700  $

(265,730)
785,636 
2,028,734 
(146,919)
2,401,726 
717 
2,402,443 
2,730,436 

$

$

$

$

 
 
IPG PHOTONICS CORPORATION

CONSOLIDATED STATEMENTS OF INCOME

Table of Contents

Net sales
Cost of sales
Gross profit
Operating expenses:

Sales and marketing
Research and development
General and administrative
Goodwill impairment
Impairment of long-lived assets and other restructuring charges
Loss (gain) on foreign exchange
Total operating expenses

Operating income
Other income, net:

Interest income, net
Other income, net

Total other income

Income before provision for income taxes
Provision for income taxes
Net income
Less: net income attributable to non-controlling interests
Net income attributable to IPG Photonics Corporation

Net income attributable to IPG Photonics Corporation per share:

Basic
Diluted

Weighted average shares outstanding:

Basic
Diluted

2020

Year Ended December 31,
2019
(In thousands, except per share data)

2018

$

1,200,724  $
661,728 
538,996 

1,314,581  $
708,372 
606,209 

1,459,874 
659,606 
800,268 

70,583 
126,898 
110,005 
44,589 
1,177 
(12,915)
340,337 
198,659 

6,270 
763 
7,033 
205,692 
45,354 
160,338 
766 
159,572  $

3.00  $
2.97  $

53,186 
53,785 

77,745 
129,997 
107,597 
37,120 
7,130 
12,827 
372,416 
233,793 

14,238 
345 
14,583 
248,376 
68,115 
180,261 
27 
180,234  $

3.40  $
3.35  $

53,061 
53,839 

57,815 
122,769 
102,429 
— 
— 
(6,150)
276,863 
523,405 

9,057 
1,933 
10,990 
534,395 
130,226 
404,169 
142 
404,027 

7.55 
7.38 

53,522 
54,726 

$

$
$

See notes to consolidated financial statements.

F-5

 
 
 
 
Table of Contents

IPG PHOTONICS CORPORATION

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

Net income
Other comprehensive income (loss), net of tax:

Foreign currency translation adjustments
Adjustment for net gain realized and included in net income
Unrealized (loss) gain on derivatives
Effect of adopted accounting standards

Total other comprehensive income (loss)

Comprehensive income

Less: comprehensive income attributable to non-controlling interest

Comprehensive income attributable to IPG Photonics Corporation

$

See notes to consolidated financial statements.

F-6

2020

Year Ended December 31,
2019
(In thousands)

2018

$

160,338  $

180,261  $

404,169 

1,367 
(232)
(472)
— 
663 
161,001 
575 
160,426  $

15,997 
— 
(17)
— 
15,980 
196,241 
30 
196,211  $

(85,590)
— 
15 
10 
(85,565)
318,604 
129 
318,475 

 
 
 
Common Stock

Treasury Stock

Amount

Shares

Amount

(378,269) $

(48,933) $

Additional
Paid In
Capital
704,727  $ 1,443,867  $

Retained
Earnings

Accumulated Other
Comprehensive
(Loss) Income

Non- 
controlling
Interest

(77,344)

$

—  $

Table of Contents

IPG PHOTONICS CORPORATION

CONSOLIDATED STATEMENTS OF EQUITY

Year Ended December 31,

(In thousands, except share data)
Balance, January 1, 2018

Shares
53,629,439  $

Exercise of stock options and vesting
of RSU's and PSU's
Common stock issued under employee
stock purchase plan
Purchased common stock
Stock-based compensation
Recently adopted accounting standards
Purchase of non-controlling interest
Net income
Foreign currency translation
adjustments
Unrealized gain on derivatives, net of
tax

Balance, December 31, 2018

Exercise of stock options and vesting
of RSU's and PSU's
Common stock issued under employee
stock purchase plan
Purchased common stock
Stock-based compensation
Net income
Foreign currency translation
adjustments
Unrealized loss on derivatives, net of
tax

Balance, December 31, 2019

Exercise of stock options and vesting
of RSU's and PSU's
Common stock issued under employee
stock purchase plan
Purchased common stock
Stock-based compensation
Recently adopted accounting standards
Net income
Foreign currency translation
adjustments
Unrealized gain on derivatives, net of
tax
Adjustment for net gain realized and
included in net income

351,795 

12,198 
(1,051,825)
— 
— 
— 
— 

— 

— 
52,941,607 

319,211 

52,315 
(302,258)
— 
— 

— 

— 
53,010,875 

677,076 

40,943 
(301,660)
— 
— 
— 

— 

— 

— 

Balance, December 31, 2020

53,427,234  $

5 

— 

— 
— 
— 
— 
— 
— 

— 

— 
5 

— 

— 
— 
— 
— 

— 

— 
5 

1 

— 
— 
— 
— 
— 

— 

— 

— 
6 

— 

— 

9,895 

— 

— 
(1,051,825)
— 
— 
— 
— 

— 
(176,065)
— 
— 
— 
— 

2,288 
— 
28,027 
— 
— 
— 

— 
— 
— 
606 
— 
404,027 

— 

— 
— 
— 
10 
— 
— 

— 

— 

— 

— 

(85,577)

— 
(1,430,094)

— 
(224,998)

— 
744,937 

— 
1,848,500 

15 
(162,896)

— 

— 

805 

— 

— 
(302,258)
— 
— 

— 
(40,732)
— 
— 

6,531 
— 
33,363 
— 

— 
— 
— 
180,234 

— 

— 
— 
— 
— 

— 

— 

— 

— 

15,994 

— 
(1,732,352)

— 
(265,730)

— 
785,636 

— 
2,028,734 

(17)
(146,919)

— 

— 

27,934 

— 

— 
(301,660)
— 
— 
— 

— 

— 

— 

— 
(37,884)
— 
— 
— 

— 

— 

— 

5,259 
— 
35,472 
— 
— 

— 

— 

— 

— 
— 
— 
(115)
159,572 

— 

— 

— 

(2,034,012) $

(303,614) $

854,301  $ 2,188,191  $

— 

— 
— 
— 
— 
— 

— 

— 
— 
— 
— 
558 
142 

(13)

— 
687 

— 

— 
— 
— 
27 

3 

— 
717 

— 

— 
— 
— 
— 
766 

Total
Stockholders'
Equity
2,022,322 

9,895 

2,288 
(176,065)
28,027 
616 
558 
404,169 

(85,590)

15 
2,206,235 

805 

6,531 
(40,732)
33,363 
180,261 

15,997 

(17)
2,402,443 

27,935 

5,259 
(37,884)
35,472 
(115)
160,338 

1,367 

(472)

1,558 

(472)

(191)

— 

(232)
(146,065)

$

— 
1,292  $

(232)
2,594,111 

See notes to consolidated financial statements.

F-7

Table of Contents

IPG PHOTONICS CORPORATION
CONSOLIDATED STATEMENTS OF CASH FLOWS

Cash flows from operating activities:

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

Depreciation and amortization
Deferred income taxes
Stock-based compensation
Goodwill impairment
Impairment of long-lived assets
Unrealized losses (gains) on foreign currency transactions
Other
Provisions for inventory, warranty and bad debt

Changes in assets and liabilities that (used) provided cash, net of acquisitions:

Accounts receivable
Inventories
Prepaid expenses and other current assets
Accounts payable
Accrued expenses and other liabilities
Income and other taxes payable

Net cash provided by operating activities

Cash flows from investing activities:

Purchases of property, plant and equipment
Proceeds from sales of property, plant and equipment
Proceeds from short-term investments
Purchases of short and long-term investments
Acquisitions of businesses, net of cash acquired
Other

Net cash used in investing activities

Cash flows from financing activities:

Proceeds from line-of-credit facilities
Payments on line-of-credit facilities
Principal payments on long-term borrowings
Proceeds from issuance of common stock under employee stock option and purchase plans less payments
for taxes related to net share settlement of equity awards
Cash contributed by non-controlling interest
Purchase of treasury stock, at cost
Payment of purchase price holdback from business combination

Net cash used in financing activities

Effect of changes in exchange rates on cash, cash equivalents and restricted cash
Net increase (decrease) in cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash — Beginning of year
Cash, cash equivalents and restricted cash — End of year (Note 1)
Supplemental disclosure of cash flow information:

Cash paid for interest
Cash paid for income taxes
Non-cash transactions:

Demonstration units transferred from inventory to other assets
Property, plant and equipment transferred from inventory
Changes in accounts payable related to property, plant and equipment
Leased assets obtained in exchange for new operating lease liabilities

See notes to consolidated financial statements.

F-8

2020

Year Ended December 31,
2019
(In thousands)

2018

$

160,338  $

180,261  $

404,169 

94,554 
(12,813)
35,472 
44,589 
671 
(19,935)
8,642 
70,572 

(13,022)
(39,900)
(3,802)
(1,942)
(14,752)
(23,337)
285,335 

(87,696)
889 
1,099,224 
(1,111,555)
(429)
(7)
(99,574)

— 
— 
(3,740)

33,194 
— 
(37,884)
(1,650)
(10,080)
19,888 
195,569 
682,984 
878,553  $

96,268 
(15,489)
33,363 
37,120 
5,350 
11,004 
3,320 
63,752 

9,776 
(28,105)
18,405 
(10,257)
(37,310)
(43,937)
323,521 

(133,536)
661 
768,078 
(760,300)
(15,115)
237 
(139,975)

15 
(15)
(3,671)

7,336 
— 
(40,732)
— 
(37,067)
(7,853)
138,626 
544,358 
682,984  $

80,271 
(4,576)
28,027 
— 
— 
(2,670)
(3,586)
38,862 

(18,814)
(135,440)
(7,062)
(1,426)
(19,666)
35,212 
393,301 

(160,343)
1,026 
470,328 
(765,310)
(109,115)
415 
(562,999)

255 
(255)
(3,604)

12,183 
839 
(176,065)
— 
(166,647)
(29,197)
(365,542)
909,900 
544,358 

2,234  $
85,861  $

2,683  $
116,951  $

3,052 
112,762 

8,117  $
4,243  $
(75) $
4,035  $

10,367  $
7,659  $
1,304  $
14,670  $

6,270 
2,535 
(2,852)
— 

$

$
$

$
$
$
$

 
 
 
Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

1. NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Nature  of  Business —  IPG  Photonics  Corporation  (the  "Company"  or  "IPG")  develops,  manufactures  and  sells  high-performance  fiber  lasers,  fiber
amplifiers, diode lasers, laser systems, communications systems and optical accessories that are used for diverse applications, primarily in materials processing.
The Company was incorporated as a Delaware corporation in December 1998. Its world headquarters are located in Oxford, Massachusetts. It also has facilities and
sales offices elsewhere in North and South America, Europe and Asia.

Principles  of  Consolidation —  The  accompanying  financial  statements  include  the  accounts  of  the  Company  and  its  majority-owned  subsidiaries.  All

intercompany accounts and transactions have been eliminated.

Use of Estimates — The preparation  of financial  statements  in conformity  with accounting  principles  generally  accepted  in the United States  of America
requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at
the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. The Company bases its estimates on historical
experience and on various other assumptions that are believed to be reasonable under the circumstances. Actual results could differ from those estimates.

Foreign Currency — The financial information for entities outside the United States is measured using local currencies as the functional currency. Assets
and  liabilities  are  translated  into  U.S.  dollars  at  the  exchange  rate  in  effect  on  the  respective  balance  sheet  dates.  Income  and  expenses  are  translated  into
U.S. dollars based on the average rate of exchange for the corresponding period. Exchange rate differences resulting from translation adjustments are accounted for
directly as a component of accumulated other comprehensive loss.

Cash and Cash Equivalents and Short-Term Investments — Cash and cash equivalents consist primarily of highly liquid investments, such as bank deposits,
mutual funds and marketable securities with maturities of three months or less at the date of purchase with insignificant interest rate risk. Short-term investments
consist primarily of similar highly liquid investments and marketable securities with insignificant interest rate risks.

The  reconciliation  of  the  Company's  cash  and  cash  equivalents  in  the  consolidated  balance  sheets  to  cash,  cash  equivalents  and  restricted  cash  in  the

consolidated statement of cash flows is as follows:

Cash and cash equivalents
Restricted cash included in prepaid expenses and other current assets
Restricted cash included in other assets

Cash, cash equivalents and restricted cash

Balance at
December 31, 2020

Balance at
December 31, 2019

$

$

876,231  $
2,322 
— 
878,553  $

680,070 
— 
2,914 
682,984 

Accounts Receivable and Allowance for Doubtful Accounts — Accounts receivable include $58,566 and $16,484 of bank acceptance drafts at December 31,
2020 and 2019, respectively. Bank acceptance drafts are bank guarantees of payment on specified dates. The weighted average maturity of these bank acceptance
drafts is approximately 130 days. The Company maintains an allowance for doubtful accounts to provide for the estimated amount of accounts receivable that will
not be collected. The allowance is based upon an estimate of expected credit losses over the life of outstanding receivables. The estimate involves an assessment of
customer creditworthiness, historical payment experience, an assumption of future expected credit losses, and the age of outstanding receivables.

Activity related to the allowance for doubtful accounts was as follows:

Balance at January 1

Provision for bad debts, net of recoveries
Uncollectable accounts written off
Foreign currency translation

Balance at December 31

2020

2019

2018

$

$

2,547  $
(156)
(114)
(121)
2,156  $

1,731  $
677 
(111)
102 
2,399  $

2,198 
14 
(198)
(283)
1,731 

F-9

Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

Inventories —  Inventories  are  stated  at  the  lower  of  cost  or  market  on  a  first-in,  first-out  basis.  Inventories  include  parts  and  components  that  may  be
specialized in nature and subject to rapid obsolescence. The Company periodically reviews the quantities and carrying values of inventories to assess whether the
inventories are recoverable. The costs associated with provisions for excess quantities, technological obsolescence, or component rejections are charged to cost of
sales as incurred.

Goodwill — Goodwill is the amount by which the cost of the acquired net assets in a business acquisition exceeded the fair values of the net identifiable
assets on the date of purchase. Goodwill is assessed for impairment at least annually, on a reporting unit basis, or more frequently when events and circumstances
occur indicating that the recorded goodwill may be impaired. The process of evaluating the potential impairment of goodwill is subjective and requires significant
judgment at many points during the analysis. If the book value of a reporting unit exceeds its fair value, the implied fair value of goodwill is compared with the
carrying amount of goodwill. If the carrying amount of goodwill exceeds the implied fair value, an impairment loss is recorded in an amount equal to that excess.
The results of the goodwill assessments for the years ended December 31, 2020 and 2019 are discussed in Note 7.

Intangible Assets —  Intangible  assets  result  from  the  Company's  various  business  acquisitions.  Intangible  assets  are  reported  at  cost,  net  of  accumulated
amortization, and are amortized on a straight-line basis either over their estimated useful lives of one year to thirteen years or over the period the economic benefits
of the intangible asset are consumed.

Property,  Plant  and  Equipment —  Property,  plant  and  equipment  are  stated  at  cost,  less  accumulated  depreciation.  Depreciation  is  determined  using  the
straight-line method based on the estimated useful lives of the related assets. In the case of leasehold improvements, the estimated useful lives of the related assets
do not exceed the remaining terms of the corresponding leases. The following table presents the assigned economic useful lives of property, plant and equipment:

Category
Buildings
Machinery and equipment
Office furniture and fixtures

Economic Useful Life
20-30 years
5-7 years
5-7 years

Expenditures for maintenance and repairs are charged to operating expense.

Long-Lived  Assets —  Long-lived  assets,  which  consist  primarily  of  property,  plant  and  equipment  and  identifiable  intangible  assets,  are  reviewed  by
management for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. When undiscounted expected
future cash flows are less than the carrying value, an impairment loss is recorded equal to the amount by which the carrying value exceeds the fair value of assets.
The Company incurred $671 and $2,498 of non-cash impairment charges related to long-lived assets during the years ended December 31, 2020 and 2019. There
were no impairment charges recognized during the year ended December 31, 2018.

Included in other long-term assets is certain demonstration equipment. The demonstration equipment is amortized over the respective estimated economic
lives, generally 3 years. The carrying value of the demonstration equipment totaled $6,506 and $7,591 at December 31, 2020 and 2019, respectively. Amortization
expense of demonstration equipment for the years ended December 31, 2020, 2019 and 2018, was $4,166, $4,364 and $3,870, respectively.

Authorized Capital —  The  Company  has  authorized  capital  stock  consisting  of  175,000,000  shares  of  common  stock,  par  value  $0.0001  per  share,  and

5,000,000 shares of preferred stock, par value $0.0001 per share. There are no shares of preferred stock outstanding as of December 31, 2020. 

Revenue Recognition — Revenue is recognized when transfer of control to the customer occurs in an amount reflecting the consideration that the Company
expects to be entitled. In order to achieve this core principle, the Company applies the following five step approach: (1) identify the contract with a customer, (2)
identify  the  performance  obligations  in  the  contract,  (3)  determine  the  transaction  price,  (4)  allocate  the  transaction  price  to  the  performance  obligations  in  the
contract, and (5) recognize revenue when a performance obligation is satisfied.

The Company considers customer purchase orders, which in some cases are governed by master sales agreements, to be contracts with a customer. As part of
its  consideration  of  the  contract,  the  Company  evaluates  certain  factors  including  the  customer's  ability  to  pay  (or  credit  risk).  For  each  contract,  the  Company
considers the promise to transfer products, each of which is distinct as the identified performance obligations. In determining the transaction price, the Company
evaluates whether the price is subject to refund or adjustment to determine the net consideration to which the Company expects to be entitled. As

F-10

  
  
  
  
Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

the Company's standard payment terms are less than one year, the Company has elected the practical expedient under ASC 606-10-32-18 to not assess whether a
contract has a significant financing component. The Company allocates the transaction price to each distinct product based on its relative standalone selling price.
Revenue is recognized when control of the product is transferred to the customer (i.e., when the Company's performance obligation is satisfied), which typically
occurs at shipment but which can occur over time for certain of the Company's systems contracts.

The  Company often  receives  orders  with  multiple  delivery  dates  that  may  extend  across  several  reporting  periods.  The Company  allocates  the  transaction
price  of  the  contract  to  each  delivery  based  on  the  product  standalone  selling  price.  The  Company  invoices  for  each  scheduled  delivery  upon  shipment  and
recognizes revenues for such delivery at that point, assuming transfer of control has occurred. As scheduled delivery dates are generally within one year, under the
optional exemption provided by ASC 606-10-50-14 revenues allocated to future shipments of partially completed contracts are not disclosed.

Rights  of  return  are  not  generally  included  in  customer  contracts.  Accordingly,  upon  application  of  steps  one  through  five  above,  product  revenue  is

recognized upon shipment and transfer of control. Returns are infrequent and are recorded as a reduction of revenue.

In  certain  subsidiaries  the  Company  provides  sales  commissions  to  sales  representatives  based  on  sales  volume.  The  Company  has  determined  that  the
incentive  portion  of  its  sales  commissions  qualify  as  contract  costs.  The  Company  has  elected  the  practical  expedient  in  ASC  340-40-25-4  to  expense  sales
commissions when incurred as the amortization period of the asset that would otherwise have been recognized is one year or less.

Revenue Recognition at a Point in Time — Revenues recognized at a point in time consist primarily of product, installation and service sales. The Company
sells products to original equipment manufacturers ("OEMs") that supply materials processing laser systems, communications systems, medical laser systems and
other laser systems for advanced applications to end users. The Company also sells products to end users that use IPG products directly to build their own systems,
which incorporate or use IPG products as an energy or light source. The Company recognizes revenue for laser and spare part sales following the transfer of control
of  such products  to  the  customer,  which  typically  occurs  upon shipment  or  delivery  depending  on the  terms  of the  underlying  contracts.  Installation  revenue  is
recognized upon completion of the installation service, which typically occurs within 90 days of delivery. For laser systems that carry customer specific processing
requirements, revenue is recognized at the latter of customer acceptance date or shipment date if the customer acceptance is made prior to shipment. When sales
contracts contain multiple performance obligations, such as the shipment or delivery of products and installation, the Company allocates the transaction price to
each performance obligation identified in the contract based on relative standalone selling prices and recognizes the related revenue as control of each individual
product or service is transferred to the customer, in satisfaction of the corresponding performance obligations.

Revenue  Recognition  over  Time  —  Warranties  are  limited  and  provide  that  the  product  meets  specifications  and  is  free  from  defects  in  materials  and
workmanship. The Company also offers extended warranty agreements, which extend the standard warranty periods. Extended warranties are sold separately from
products  and represent  a  distinct  performance  obligation.  Revenue related  to the  performance  obligation  for extended  warranties  is recognized  over time  as the
customer  simultaneously  receives  and  consumes  the  benefits  provided  by  the  Company.  The  customer  receives  the  assurance  that  the  product  will  operate  in
accordance with agreed-upon specifications evenly during the extended warranty period regardless of whether they make a claim during that period, and therefore,
revenue at time of sale is deferred and recognized over the time period of the extended warranty period.

With the acquisition of Genesis Systems Group, LLC in December 2018, the Company enters into contracts to sell customized robotic systems, for which
revenue is generally recognized over time, depending on the terms of the contract. Recognizing revenue over time for these contracts is based on the Company’s
judgment that the customized robotic system does not have an alternative use and the Company has an enforceable right to payment for performance completed to
date.

The  determination  of  the  revenue  to  be  recognized  in  a  given  period  for  performance  obligations  over  time  is  based  on  the  input  method.  The  Company
generally uses the total cost-to-cost input method of progress because it best depicts the transfer of control to the customer that occurs as costs are incurred. Under
the cost-to-cost  method,  the extent  of progress  towards  completion  is measured  based on the proportion  of costs incurred  to date  to the total  estimated  costs at
completion of the performance obligation.

Customer Deposits and Deferred Revenue — When the Company receives consideration from a customer or such consideration is unconditionally due prior

to transferring goods or services under the terms of a sales contract, the Company

F-11

Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

records customer deposits or deferred revenue, which represent contract liabilities. The Company recognizes deferred revenue as net sales after control of the goods
or services has been transferred to the customer and all revenue recognition criteria are met.

Warranties — The Company typically provides one to five-year warranties on lasers and amplifiers. Most of the Company's sales offices provide support to
customers in their respective geographic areas. The Company estimates the warranty accrual considering past claims experience, the number of units still covered
by  warranty  and  the  average  life  of  the  remaining  warranty  period.  The  warranty  accrual  has  generally  been  sufficient  to  cover  product  warranty  repair  and
replacement costs.

Stock-Based Compensation —  The  Company  accounts  for  stock-based  compensation  expense  using  the  fair  value  of  the  awards  granted.  The  Company
estimates the fair value of stock options granted using the Black-Scholes model, it values restricted stock units ("RSUs") and certain performance stock units with
operating  cash  flow  targets  ("OCF  PSUs")  using  the  intrinsic  value  method,  and  it  uses  a  Monte  Carlo  simulation  model  to  estimate  the  fair  value  of  certain
performance stock units with total stockholder return targets ("TSR PSUs"). The Company accounts for forfeitures as they occur. The Company amortizes the fair
value of stock options and other equity awards on a straight-line basis over the requisite service periods of the awards, which are generally the vesting periods.
st
Stock options and RSUs generally vest annually on the anniversary of the grant date over a four-year period. TSR PSUs and OCF PSUs cliff-vest on March 1
following the third anniversary of the grant date based upon achievement of performance targets established at grant. The description of the Company's stock-based
compensation  plans  and  the  assumptions  it  uses  to  calculate  the  fair  value  of  stock-based  compensation  is  more  fully  described  in  Note  15,  "Stock-based
Compensation."

Advertising Expense — The cost of advertising is expensed as incurred. The Company conducts substantially all of its sales and marketing efforts through
trade shows, professional and technical conferences, direct sales and the Company's website. The Company's advertising costs were not material for the periods
presented.

Research and Development — Research and development costs are expensed as incurred.

Restructuring — The Company records charges associated with approved restructuring plans to reorganize operations, to remove redundant headcount and
infrastructure  associated  with  business  acquisitions  or  to  improve  the  efficiency  of  business  processes.  Restructuring  charges  can  include  severance  costs  to
eliminate a specific number of positions, infrastructure charges to vacate facilities and consolidate operations and contract cancellation costs. The Company records
restructuring charges when they are probable and estimable. The Company accrues for severance and other employee separation costs under these plans when the
employees accept the offer and the amount can be reasonably estimated.

Income Taxes — Deferred tax assets and liabilities are recognized for the future tax consequences of temporary differences between the financial statement
carrying  amounts  and  tax  basis  of  assets  and  liabilities  and  net  operating  loss  and  credit  carryforwards  using  enacted  rates  in  effect  when  those  differences  are
expected to reverse. Valuation allowances are provided against deferred tax assets that are not deemed to be recoverable. The Company recognizes tax positions
that are more likely than not to be sustained upon examination by relevant tax authorities. The tax positions are measured at the greatest amount of tax benefit that
is more than 50 percent likely to be realized upon ultimate settlement.

The Company provides reserves for potential payments of tax to various tax authorities related to uncertain tax positions and other issues. The reserves are
based on a determination of whether and how much of a tax benefit taken in its tax filings or positions is more likely than not to be realized following resolution of
uncertainties related to the tax benefit, assuming that the matter in question will be raised by the tax authorities.

Concentration  of  Credit  Risk —  Financial  instruments  that  potentially  subject  the  Company  to  credit  risk  consist  primarily  of  cash  and  cash  equivalents,
short-term investments and accounts receivable. The Company maintains substantially all of its cash and cash equivalents, short-term investments and marketable
securities in various financial institutions, which it believes to be high-credit quality financial institutions. The Company grants credit to customers in the ordinary
course of business and provides a reserve for potential credit losses. Such losses historically have been within management's expectations.

One  customer  comprised  8%,  9%  and  12%  of  net  sales  during  the  years  ended  December  31,  2020,  2019  and  2018  respectively.  The  same  customer
accounted for 21% and 24% of our net accounts receivable as of December 31, 2020 and 2019, respectively. The Company has historically depended on a few
customers for a significant percentage of its annual net

F-12

Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

sales. The composition of this group can change from year to year. Net sales derived from the Company's five largest customers as a percentage of its annual net
sales were 24%, 21% and 26% in 2020, 2019 and 2018, respectively.

Comprehensive Income — Comprehensive income includes charges and credits to equity that are not the result of transactions with stockholders. Included
within comprehensive  income is the cumulative  foreign currency  translation  adjustment,  change in carrying  value of auction rate securities,  unrealized  gains or
losses on derivatives and unrealized gains or losses on available-for-sale investments. These adjustments are accumulated within the consolidated statements of
comprehensive income.

Total components of accumulated other comprehensive loss were as follows:

Foreign currency translation adjustments
Unrealized gain on auction rate securities
Unrealized (loss) gain on derivatives, net of tax benefit of $141 and tax of $3, respectively

Accumulated other comprehensive loss

December 31,

2020

2019

(145,603) $

— 
(462)
(146,065) $

(147,161)
232 
10 
(146,919)

$

$

Derivative Instruments — The Company's primary market exposures are to interest rates and foreign exchange rates. The Company from time to time may
use certain derivative  financial instruments  to help manage these exposures. The Company executes  these instruments with financial  institutions it judges to be
credit-worthy. The Company does not hold or issue derivative financial instruments for trading or speculative purposes. The Company recognizes all derivative
financial instruments as either assets or liabilities at fair value in the consolidated balance sheets.

Business Segment Information — The Company operates in one segment which involves the design, development, production and distribution of fiber lasers,
laser  and non-laser  systems,  fiber  amplifiers,  and related  optical  components.  The  Company has  a single,  company-wide  management  team  that  administers  all
properties  as  a  whole  rather  than  as  discrete  operating  segments.  The  chief  operating  decision  maker,  who  is  the  Company's  chief  executive  officer,  measures
financial  performance  as  a  single  enterprise,  and  not  on  geography,  legal  entity,  or  end  market  basis.  Throughout  the  year,  the  chief  operating  decision  maker
allocates capital resources on a project-by-project basis across the Company's entire asset base to maximize profitability without regard to geography, legal entity,
or end market basis. The Company operates in a number of countries throughout the world in a variety of product lines. Information regarding product lines and
geographic financial information is provided in Note 2, "Revenue from Contracts with Customers" and Note 8, "Property, Plant and Equipment."

Earnings Per Share — Basic net income per share is computed by dividing net income attributable to shareholders of the Company by the weighted-average
number of common shares outstanding during the reporting period. Diluted net income per share is computed similarly to basic net income per share, except that it
includes the potential dilution that could occur if dilutive securities were exercised. Information about potentially dilutive and antidilutive shares for the reporting
period is provided in Note 18, "Net Income Attributable to IPG Photonics Corporation Per Share."

Leases — The Company determines if an arrangement is a lease at inception. Operating leases are included in other assets, other current liabilities, and other

long-term liabilities on the Company's consolidated balance sheets.

Right  of  use  ("ROU") assets  and  lease  liabilities  are  recognized  based  on the  present  value  of  the  future  minimum  lease  payments  over  the  lease  term  at
commencement date. As most of the Company's leases do not provide an implicit rate, IPG uses its incremental borrowing rate based on the information available
at commencement date in determining the present value of future payments. The ROU assets also include any lease payments made and initial direct costs incurred
and exclude lease incentives. Lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Lease
expense for minimum lease payments is recognized on a straight-line basis over the lease term. Leases with an initial term of 12 months or less are not recorded on
the balance sheet; the Company recognizes lease expense for these leases on a straight-line basis over the lease term. The Company has lease agreements with lease
and non-lease components, which are accounted for as a single lease component.

F-13

Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

Recent Accounting Pronouncements

Adopted Pronouncements — In June 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2016-13,
"Measurement  of  Credit  Losses  on  Financial  Instruments"  ("ASU  2016-13"),  which  adds  an  impairment  model  (known  as  the  current  expected  credit  loss
("CECL") model) that is based on expected losses rather than incurred losses. Under the new guidance, an entity recognizes as an allowance for its estimate of
expected  credit  losses,  which  the  FASB  believes  will  result  in  more  timely  recognition  of  such  losses.  The  ASU  is  also  intended  to  reduce  the  complexity  by
decreasing  the  number  of  credit  impairment  models  that  entities  use  to  account  for  debt  instruments.  The  Company  adopted  ASU  2016-03,  along  with  its
subsequent clarifications, as of January 1, 2020. The cumulative effect of the changes made to the Company's consolidated January 1, 2020 balance sheet for the
adoption of ASU 2016-13 was as follows:

Balance Sheet
Accounts receivable, net
Deferred income taxes, net
Retained earnings

Balance at
December 31, 2019

Adoption of
ASU 2016-13

Balance at
January 1, 2020

$

238,479  $
31,395 
2,028,734 

(148) $
33 
(115)

238,331 
31,428 
2,028,619 

In February 2016, the Financial Accounting Standards Board (“FASB”) issued a new standard related to leases to increase transparency and comparability
among organizations by requiring the recognition of ROU assets and lease liabilities on the balance sheet. Most prominent among the changes in the standard is the
recognition of ROU assets and lease liabilities by lessees for those leases classified as operating leases. The Company adopted ASC 842, as of January 1, 2019,
using the modified retrospective approach as of the date of adoption. Under this approach, comparative periods have not been restated. In addition, IPG elected the
package of three practical expedients permitted under the transition guidance within the new standard, which among other things, allowed for the carry forward of
the historical lease classification.

Subsequent Events — The Company has considered the impact of subsequent events through the filing date of these financial statements. There were no

events through the filing date of these financial statements required to be disclosed.

2. REVENUE FROM CONTRACTS WITH CUSTOMERS

Sales are derived from products for different applications: fiber lasers, diode lasers, systems and accessories for materials processing, fiber lasers, amplifiers
an  diodes  for  advanced  applications,  fiber  amplifiers  and  transceivers  for  communications  applications,  and  fiber  lasers,  systems  and  fibers  for  medical
applications. The following tables represent a disaggregation of revenue from contracts with customers for the years ended December 31, 2020, 2019 and 2018:

Sales by Application
Materials processing
Other applications

Total

2020

Year Ended December 31,
2019

2018

$

$

1,082,478  $
118,246 
1,200,724  $

1,229,211  $
85,370 
1,314,581  $

1,374,448 
85,426 
1,459,874 

F-14

Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

Sales by Product
High Power Continuous Wave ("CW") Lasers
Medium Power CW Lasers
Pulsed Lasers
Quasi-Continuous Wave ("QCW") Lasers
Laser and Non-Laser Systems
Other Revenue including Amplifiers, Service, Parts, Accessories and Change in Deferred
Revenue
Total

$

$

2020

Year Ended December 31,
2019

2018

646,062  $
50,796 
158,448 
50,333 
93,727 

734,745  $
56,625 
137,675 
56,440 
141,647 

201,358 
1,200,724  $

187,449 
1,314,581  $

909,726 
95,764 
162,048 
66,700 
59,330 

166,306 
1,459,874 

Sales by Geography
North America
Europe:

Germany
Other including Eastern Europe/CIS

Asia and Australia:

China
Japan
Other
Rest of World
Total

Timing of Revenue Recognition
Goods and services transferred at a point in time
Goods and services transferred over time

Total

$

246,189  $

280,886  $

202,743 

65,646 
219,540 

502,278 
53,180 
103,785 
10,106 
1,200,724  $

81,365 
249,871 

491,890 
71,757 
121,586 
17,226 
1,314,581  $

111,259 
296,917 

629,079 
87,619 
127,251 
5,006 
1,459,874 

1,144,237  $
56,487 
1,200,724  $

1,233,065  $
81,516 
1,314,581  $

1,447,343 
12,531 
1,459,874 

$

$

$

The Company enters into contracts  to sell lasers  and spare parts,  for which revenue  is generally  recognized  upon shipment  or delivery,  depending  on the
terms of the contract. The Company also provides installation services and extended warranties. The Company frequently receives consideration from a customer
prior  to  transferring  goods  to  the  customer  under  the  terms  of  a  sales  contract.  The  Company  records  customer  deposits  related  to  these  prepayments,  which
represent a contract liability. The Company also records deferred revenue related to installation services when consideration is received before the services have
been performed. The standalone selling price for installation services is determined based on the estimated number of days of service technician time required for
installation at standard service rates. The Company recognizes customer deposits and deferred revenue as net sales after control of the goods or services has been
transferred to the customer and all revenue recognition criteria is met. The Company bills customers for extended warranties upon entering into the agreement with
the customer, resulting in deferred revenue. The timing of customer payments on contracts for the sale of customized robotic systems generally differs from the
timing  of  revenue  recognized,  resulting  in  contract  assets  and  liabilities.  Contract  assets  are  included  within  prepaid  expense  and  other  current  assets  on  the
consolidated balance sheets. Contract liabilities are included within accrued expenses and other current liabilities on the consolidated balance sheets.

F-15

Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

The following table reflects the changes in the Company's contract assets and liabilities for the years ended December 31, 2020 and 2019:

December 31,
2020

January 1,
2020

Change

December 31,
2019

January 1,
2019

Change

Contract assets
Contract assets
Contract liabilities

Contract liabilities - current
Contract liabilities - long-term

$

8,999  $

9,645  $

(646) $

9,645  $

10,102  $

(457)

71,246 
2,189 

59,531 
1,820 

11,715 
369 

59,531 
1,820 

52,606 
1,413 

6,925 
407 

During  the  year  ended  December  31,  2020  and  2019,  the  Company  recognized  revenue  of  $48,738  and  $45,223,  respectively,  that  was  included  in  the

contract liabilities at the beginning of the period.

The  Company  has  elected  the  practical  expedient  in  ASC  606-10-50-14,  whereby  the  performance  obligations  for  contracts  with  an  original  expected
duration of one year or less are not disclosed. The following table represents the Company's remaining performance obligations from contracts that are recognized
over time as of December 31, 2020:

2021

2022

Remaining Performance Obligations
2025
2024

2023

Thereafter

Total

Revenue expected to be recognized for extended
warranty agreements
Revenue to be earned over time from contracts to
sell robotic systems

Total

$

$

3,795  $

996  $

675  $

381  $

113  $

11  $

5,971 

17,513 
21,308  $

1,336 
2,332  $

— 
675  $

— 
381  $

— 
113  $

— 
11  $

18,849 
24,820 

3. FAIR VALUE MEASUREMENTS

The Company's financial instruments consist of cash equivalents, short-term and long-term investments, accounts receivable, auction rate securities, accounts

payable, drawings on revolving lines of credit, long-term debt, interest rate swaps and contingent purchase consideration.

The valuation techniques used to measure fair value are based upon observable and unobservable inputs. Observable inputs reflect market data obtained from
independent sources, while unobservable inputs reflect internal market assumptions. These two types of inputs create the following fair value hierarchy: Level 1,
defined as observable inputs such as quoted prices for identical instruments in active markets; Level 2, defined as inputs other than quoted prices in active markets
that are either directly or indirectly observable; and Level 3, defined as unobservable inputs for which little or no market data exists, therefore requiring an entity to
develop its own assumptions. The Company classifies its financial instruments according to the prescribed criteria.

The carrying amounts of money market fund deposits, term deposits, accounts receivable, accounts payable and drawings on revolving lines of credit are
considered reasonable estimates of their fair market value due to the short maturity of most of these instruments or as a result of the competitive market interest
rates,  which  have  been  negotiated.  The  fair  value  of  the  Company's  bond  securities  is  based  upon  quoted  prices  for  instruments  with  identical  terms  in  active
markets. The Company's commercial paper securities reported at fair value are based upon model-driven valuations in which all significant inputs are observable or
can be derived from or corroborated by observable market data for substantially the full term of the asset or liability, and are therefore classified as Level 2.

F-16

Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

The following table presents fair value information related to the Company's assets and liabilities measured at amortized cost on the consolidated balance

sheets with the exception of the interest rate swap, which is measured at fair value:

Assets

Cash equivalents:

Money market fund deposits and term deposits
U.S. Treasury and agency obligations
Commercial paper
Corporate bonds

Short-term investments:

U.S. Treasury and agency obligations
Municipal bonds
Corporate bonds
Commercial paper

Total assets

Liabilities

Long-term notes
Contingent purchase consideration
Interest rate swap

Total liabilities

Assets

Cash equivalents:

Money market fund deposits and term deposits
Commercial paper

Short-term investments:

Corporate bonds
Commercial paper
Certificate of deposit

Long-term investments and other assets:

Auction rate securities
Interest rate swap

Total assets

Liabilities

Long-term notes
Contingent purchase consideration

Total liabilities

 Fair Value Measurements at December 31, 2020

Total

Level 1

Level 2

Level 3

218,984  $
6,999 
162,749 
29,010 

49,996 
7,997 
88,171 
368,665 
932,571  $

38,402  $
1,963 
603 
40,968  $

218,984  $
— 
— 
— 

— 
— 
— 
— 
218,984  $

—  $
— 
— 
—  $

—  $

6,999 
162,749 
29,010 

49,996 
7,997 
88,171 
368,665 
713,587  $

38,402  $
— 
603 
39,005  $

— 
— 
— 
— 

— 
— 
— 
— 
— 

— 
1,963 
— 
1,963 

 Fair Value Measurements at December 31, 2019

Total

Level 1

Level 2

Level 3

155,080  $
54,712 

155,080  $
— 

—  $

54,712 

259,422 
236,752 
6,501 

259,422 
— 
6,501 

— 
236,752 
— 

592 
13 
713,072  $

— 
— 
421,003  $

— 
13 
291,477  $

42,004  $
273 
42,277  $

—  $
— 
—  $

42,004  $
— 
42,004  $

— 
— 

— 
— 
— 

592 
— 
592 

— 
273 
273 

$

$

$

$

$

$

$

$

Short-term  investments  consist  of  liquid  investments  including  U.S.  government  and  government  agency  notes,  corporate  bonds,  commercial  paper  and
certificates of deposit with original maturities of greater than three months but less than one year and are recorded at amortized cost. There were no impairments
for the investments considered held-to-maturity at December 31, 2020 and December 31, 2019.

F-17

 
 
 
Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

The following table presents the effective maturity dates of debt investments, which are held-to-maturity:

Investment maturity
Less than 1 year

December 31, 2020

December 31, 2019

Book Value

Fair Value

Book Value

Fair Value

$

514,835  $

514,829  $

502,546  $

502,675 

The Company entered into an interest rate swap that is designated as a cash flow hedge associated with a long-term note issued during the second quarter of
2016 that will terminate with the long-term note in May 2023. The fair value at December 31, 2020 for the interest rate swap considered pricing models whose
inputs are observable for the securities held by the Company.

At December 31, 2020 and December 31, 2019, the Company's long-term notes consisted of a variable rate note and a fixed rate note, and are reported at
amortized cost on the consolidated balance sheets. For disclosure purposes, the fair value of the long-term notes was estimated using a discounted cash flow model
using  observable  market  interest  rates  and  are  classified  as  a  level  2.  Based  on  the  discounted  cash  flow  model,  the  fair  values  of  the  long-term  notes  at
December 31, 2020 and 2019 were $38,402 and $42,004, respectively, as compared to the book value of $37,967 and $41,708, respectively.

The fair value of contingent consideration was determined using an income approach at the respective business combination date and at the reporting date.
That approach is based on significant inputs that are not observable in the market and include key assumptions such as assessing the probability of meeting certain
milestones required to earn the contingent consideration.

The following table presents information about the Company's movement in Level 3 assets and liabilities measured at fair value:

Auction rate securities
Balance, January 1

Redemptions
Change in fair value
Balance, December 31

Contingent purchase consideration

Balance, January 1

Period transactions
Cash payments
Change in fair value
Foreign exchange adjustment

Balance, December 31

2020

2019

2018

$

$

$

$

592  $
(596)
4 
—  $

273  $

1,963 
(272)
— 
(1)
1,963  $

847  $
(264)
9 
592  $

898  $
— 
(632)
(29)
36 
273  $

1,016 
(207)
38 
847 

902 
— 
— 
48 
(52)
898 

The  auction  rate  securities  were  called  during  the  year  ended  December  31,  2020.  The  net  gain  previously  included  in  accumulated  other  comprehensive

income was released and included in net income, in the amount of $232.

F-18

Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

4. INVENTORIES

Inventories consist of the following:

Components and raw materials
Work-in-process
Finished goods

Total

December 31,

2020

2019

190,775  $
47,251 
126,967 
364,993  $

200,390 
49,620 
130,780 
380,790 

$

$

The Company recorded inventory provisions totaling $45,375, $38,902 and $12,981 for the years ended December 31, 2020, 2019 and 2018, respectively.
These  provisions  relate  to  the  recoverability  of  the  value  of  inventories  due  to  technological  changes  and  excess  quantities.  These  provisions  are  reported  as  a
reduction to components and raw materials and finished goods.

5. BUSINESS COMBINATIONS

During  the  fourth  quarter  of  2020,  the  Company  acquired  Pi-Tecnologia  S.A.  ("PiTec"),  which  is  located  in  Brazil,  to  support  development  in  advanced
photonics. The acquisition price was $2,717, of which $906 was paid at closing and the remainder of which may be earned over three years based on reaching
certain financial targets. Any excess of the acquisition consideration over the fair value of assets acquired and liabilities assumed is allocated to goodwill, which
amounted  to  $3,211.  The  goodwill  arising  from  this  acquisition  will  not  be  deductible  for  tax  purposes.  The  purchase  price  allocations  related  to  the  PiTec
acquisition included in the Company's consolidated financial statements are not complete. They represent the preliminary fair value estimates as of December 31,
2020 and are subject to subsequent adjustment as the Company obtains additional information during the measurement period and finalizes its fair value estimates.
Any subsequent adjustments to these fair value estimates occurring during the measurement period will result in changes to the amounts and allocations recorded.

During the first quarter of 2019, the Company acquired the submarine networks division (SND) of Padtec SA, a communications equipment company based
in Brazil. SND is a provider of submarine networking technology and systems. The Company paid $19,560 to acquire SND, which represents the fair value on that
date. Of the purchase price, $2,322 at December 31, 2020 ($2,914 at December 31, 2019) was held back in a restricted bank account for potential post-closing
adjustments related to indemnities provided by the seller. The restricted cash balance is recorded in the consolidated balance sheets as presented in Note 1. The
liability related to the amount due to the seller if the indemnities are satisfied is included within accrued expenses and other current liabilities as of December 31,
2020 on the consolidated balance sheets. Any excess of the purchase price was allocated to goodwill.

During  the  fourth  quarter  of  2018,  the  Company  acquired  100%  of  the  membership  units  of  Genesis  System  Group,  LLC  (“Genesis  Systems”).  Genesis
Systems is based in Davenport, Iowa, and has production facilities in the United States, Mexico, and Japan. Genesis Systems develops innovative robotic system
solutions  for  applications  that  include  welding,  non-destructive  inspection,  machine  vision,  materials  handling,  removal  and  dispensing.  The  Company  paid
$107,987  to  acquire  Genesis  Systems,  which  represents  the  fair  value  on  that  date.  The  purchase  price  includes  $448,  which  was  paid  for  the  working  capital
adjustment finalized in the first quarter of 2019. As a result of the acquisition, the Company recorded intangible assets of $32,350 related to customer relationships
with a weighted-average estimated useful life of 11 years and $11,350 related to technology, trademark and tradename with a weighted-average estimated useful
life of 6 years. Any excess of the acquisition consideration over the fair value of assets acquired and liabilities assumed is allocated to goodwill, which amounted to
$45,684, most of which will be deductible for tax purposes.

During the second quarter of 2018, the Company acquired 100% of the shares of robot concept GmbH (“RC”). RC is located near Munich, Germany, designs
and  manufactures  customized  laser  systems.  The  purchase  price  was  $4,453,  which  represents  the  fair  value  on  that  date.  As  a  result  of  the  acquisition,  the
Company  recorded  intangible  assets  of  $111  related  to  customer  relationships  with  a  weighted-average  estimated  useful  life  of  1  year  and  $594  related  to
technology, trademark and tradename with a weighted-average estimated useful life of 10 years. Any excess of the acquisition consideration over the fair value of
assets acquired and liabilities assumed is allocated to goodwill, which amounted to $4,072. The goodwill arising from this acquisition will not be deductible for tax
purposes.

F-19

 
Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

The fair values of net tangible assets and intangible assets acquired were based upon the Company's estimates and assumptions at the acquisition dates. The

following table summarizes the allocation of the assets acquired and liabilities assumed at the acquisition dates for the year ended December 31, 2018:

Cash and cash equivalents
Assets acquired excluding cash and cash equivalents and deferred tax assets
Liabilities assumed excluding deferred tax liabilities
Deferred tax liabilities, net
Intangible assets

Total identifiable net assets

Goodwill

Total purchase price

Genesis Systems

RC

Total

$

$

2,847  $
39,262 
(23,506)
— 
43,700 
62,303 
45,684 
107,987  $

30  $

2,151 
(1,932)
(573)
705 
381 
4,072 
4,453  $

2,877 
41,413 
(25,438)
(573)
44,405 
62,684 
49,756 
112,440 

The operating results of Genesis Systems and RC are included in the consolidated results of operations from the date of acquisition. The impact of earnings
from Genesis Systems and RC from January 1, 2018 to the date of acquisition were not material to the Company. If the Genesis Systems acquisition had occurred
on January 1, 2018, the unaudited consolidated pro forma net sales would have been $1,551,373 for the year ended December 31, 2018.

6. RESTRUCTURING

In  the  second  half  of  2019,  the  Company  implemented  restructuring  programs  globally,  which  were  primarily  focused  on  workforce  reduction,  facility

consolidation and ceasing investment in the submarine telecommunications industry.

Activity related to the restructuring accrual was as follows:

Balance at January 1, 2019

Charges
Cash payments

Balance at December 31, 2019

Charges
Cash payments
Foreign exchange adjustment
Balance at December 31, 2020

Severance and Employee
Benefit Costs

Contract Cancellations

Total

$

$

—  $

1,466 
(1,317)
149 
417 
(560)
(6)
—  $

—  $
314 
(275)
39 
89 
(128)
— 
—  $

7. GOODWILL AND INTANGIBLE ASSETS

The following table sets forth the changes in the carrying amount of goodwill for the years ended December 31, 2020 and 2019:

Balance at January 1

Adjustments to goodwill during the measurement period
Goodwill arising from business combinations
Impairment losses
Foreign exchange adjustment

Balance at December 31

2020

2019

$

$

82,092  $
— 
3,211 
(44,589)
652 
41,366  $

— 
1,780 
(1,592)
188 
506 
(688)
(6)
— 

100,722 
448 
19,076 
(37,120)
(1,034)
82,092 

F-20

 
Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

The Company tests its reporting units for goodwill impairment annually as of the first day of the fourth quarter, or more frequently if events or circumstances
indicate  it  is  more  likely  than  not  that  the  fair  value  of  a  reporting  unit  is  less  than  its  carrying  amount.  For  certain  reporting  units,  the  Company  performed  a
quantitative assessment using the discounted cash flow method under the income approach to estimate the fair value.

During  the  third  quarter  of  2020,  the  Company  concluded  that  declines  in  revenue  and  order  flow  for  the  Genesis  custom  systems  business  caused  by
pandemic-related decreases in capital spending in the aerospace and transportation industries were a triggering event requiring a goodwill impairment evaluation.
The Company performed a quantitative assessment using the discounted cash flow method under the income approach as well as the guideline public company
analysis  and  guideline  transaction  analysis  under  the  market  approach  to  estimate  the  fair  value  of  the  custom  systems  business.  As  a  result,  the  Company
recognized a non-cash impairment loss of $44,589, which was equal to the carrying amount of goodwill prior to its impairment. The analysis considered internal
forecasts of sales, profitability and capital expenditures, as well as valuation multiples of comparable public companies and valuation multiples of transactions of
comparable companies. The Company performed the 2020 annual impairment test as of October 1, 2020, and no additional impairments were recorded as a result
of this test. The carrying balance of goodwill at December 31, 2020 was net of accumulated impairments of $81,709.

As a result of the 2019 annual impairment test for the transceivers reporting unit, the Company recognized a non-cash impairment loss of $19,325, which
was equal to the goodwill carrying amount prior to its impairment. The analysis considered lower than forecasted sales and profitability, as well as the impact of
delays in new product launches. Additionally, in 2019 the Company decided that it would not make further investments required to obtain the necessary market
share in the submarine telecommunications industry and commenced efforts to sell the submarine networks reporting unit. As a result that decision, the Company
recognized a non-cash impairment loss of $17,795, which decreased the net assets to the estimated net realizable value as of December 31, 2019. The Company
sold  the  submarine  networks  reporting  unit  in  the  third  quarter  of  2020.  The  carrying  balance  of  goodwill  at  December  31,  2019  was  net  of  accumulated
impairments of $37,120.

Intangible assets, subject to amortization, consisted of the following: 

Customer relationships
Technology, trademark and
trade name
Production know-how
Patents

Total

December 31, 2020

Gross
Carrying
Amount

Accumulated
Amortization

Net Carrying
Amount

$

58,041  $

(17,674) $

40,367 

40,518 
9,325 
8,036 
115,920  $

$

(20,949)
(8,167)
(7,016)
(53,806) $

19,569 
1,158 
1,020 
62,114 

Weighted-
Average Lives
11 years

7 years
7 years
8 years

December 31, 2019

Gross
Carrying
Amount

Accumulated
Amortization

Net Carrying
Amount

$

57,866  $

(11,993) $

45,873 

41,297 
9,180 
8,036 
116,379  $

$

(16,128)
(7,415)
(6,572)
(42,108) $

25,169 
1,765 
1,464 
74,271 

Weighted-
Average Lives
11 years

7 years
7 years
8 years

Amortization expense for the years ended December 31, 2020, 2019 and 2018 was $11,974, $12,945 and $8,170, respectively.

The estimated future amortization expense for intangibles as of December 31, 2020 is as follows:

2021

2022

2023

2024

2025

Thereafter

Total

$

11,591  $

10,761  $

9,861  $

7,522  $

6,311  $

16,068  $

62,114 

F-21

 
Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

8. PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consist of the following: 

Land
Buildings
Machinery and equipment
Office furniture and fixtures
Construction-in-progress
Total property, plant and equipment
Accumulated depreciation

Total property, plant and equipment — net

December 31,

2020

2019

$

$

51,454  $
412,725 
473,420 
77,196 
70,341 
1,085,136 
(487,609)
597,527  $

45,676 
400,617 
449,783 
70,001 
44,201 
1,010,278 
(409,426)
600,852 

The Company recorded depreciation expense of $78,414, $78,959 and $68,231 for the years ended December 31, 2020, 2019 and 2018, respectively.

Long-lived  assets  include  property,  plant  and  equipment,  related  deposits  on  such  assets  and  demonstration  equipment.  The  geographic  locations  of  the

Company's long-lived assets, net, based on physical location of the assets, as of December 31, 2020 and 2019 are as follows:

United States
Germany
Russia
Belarus
China
Other

Total

9. ACCRUED EXPENSES AND OTHER LIABILITIES

Accrued expenses and other liabilities consist of the following:

Contract liabilities
Accrued compensation
Current portion of accrued warranty
Short-term lease liabilities
Other

Total

F-22

December 31,

2020

2019

362,395  $
86,980 
66,924 
38,304 
8,175 
49,170 
611,948  $

December 31,

2020

2019

71,246  $
62,785 
24,345 
5,778 
12,586 
176,740  $

366,059 
86,881 
84,471 
28,361 
8,933 
43,255 
617,960 

59,531 
48,881 
23,114 
5,300 
12,956 
149,782 

$

$

$

$

 
 
 
 
 
Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

10. PRODUCT WARRANTIES

Activity related to the warranty accrual was as follows:

Balance at January 1

Provision for warranty accrual
Warranty claims
Foreign currency translation and other

Balance at December 31

2020

2019

2018

$

$

48,866  $
24,555 
(30,002)
2,250 
45,669  $

51,422  $
22,613 
(24,826)
(343)
48,866  $

47,517 
24,948 
(18,922)
(2,121)
51,422 

Accrued warranty reported in the accompanying consolidated financial statements as of December 31, 2020 and December 31, 2019 consists of $24,345 and

$23,114 in accrued expenses and other liabilities and $21,324 and $25,752 in other long-term liabilities, respectively.

11. FINANCING ARRANGEMENTS

The Company's borrowings under existing financing arrangements consist of the following: 

Total notes payable
Less: current portion

Total long-term debt

Term Debt:

December 31,

2020

2019

$

$

37,967  $
(3,810)
34,157  $

41,708 
(3,740)
37,968 

Long-Term Notes — At December 31, 2020, the outstanding principal balance on the long-term notes was $37,967 of which $3,810 is the current portion.
The  Company  has  an  unsecured  long-term  note  of  $18,406  of  which  $1,187  is  the  current  portion.  The  interest  on  this  unsecured  long-term  note  is  variable  at
1.20%  above  LIBOR  and  is  fixed  using  an  interest  rate  swap  at  2.85%  per  annum.  The  unsecured  long-term  note  matures  in  May  2023,  at  which  time  the
outstanding principal balance will be $15,438. The Company has another note that is secured by the corporate aircraft  with an outstanding principal balance of
$19,561 of which $2,623 is the current portion. The interest on this collateralized long-term note is fixed at 2.74% per annum. The collateralized long-term note
matures in July 2022, at which time the outstanding principal balance will be $15,375.

The future principal payments for the Company’s notes as of December 31, 2020 are as follows:

2021
2022
2023

Total

Revolving Line of Credit Facilities:

$

$

3,810 
18,126 
16,031 
37,967 

U.S. Line of Credit — The Company maintains an unsecured revolving line of credit with a principal amount of $75,000, expiring in April 2025. The line of
credit bears interest at a variable rate of LIBOR plus 0.80% to 1.20% depending on the Company's financial performance. Part of this credit facility is available to
the  Company's  foreign  subsidiaries  including  those  in  India,  China,  Japan  and  Brazil  based  on  management  discretion.  At  December  31,  2020,  there  were  no
outstanding drawings, however, there were $3,300 of guarantees issued against the line which reduced the total availability. At December 31, 2020, the remaining
availability under this line was $71,700.

The Company is required to meet certain financial covenants associated with its U.S. revolving line of credit and long-term debt facility. These covenants,
tested  quarterly,  include  an  interest  coverage  ratio  and  a  funded  debt  to  earnings  before  interest,  taxes,  depreciation  and  amortization  ("EBITDA")  ratio.  The
interest coverage covenant requires that the Company maintains a trailing twelve-month ratio of EBITDA to interest on all obligations that is at least 3.0:1.0. The
funded debt to EBITDA covenant requires that the sum of all indebtedness for borrowed money on a consolidated basis be less than three

F-23

 
Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

times its trailing twelve months EBITDA. Funded debt is decreased by its cash and available marketable securities not classified as long-term investments in the
U.S. in excess of $50,000 up to a maximum of $500,000.

 Euro Line of Credit — The Company maintains an unsecured revolving line of credit with a principal amount of €50,000 ($61,319 at December 31, 2020),
expiring  in  July  2023.  The  line  of  credit  bears  interest  at  various  rates  based  upon  the  type  of  loan.  This  credit  facility  is  available  to  the  Company's  foreign
subsidiaries including those in Germany, Russia, China and Italy based on management discretion. At December 31, 2020, there were no drawings, however, there
were  $3,424  of  guarantees  issued  against  the  line  which  reduced  the  total  availability.  At  December  31,  2020,  the  remaining  availability  under  this  line  was
$57,895.

Other European Facilities — The Company maintains two Euro credit lines in Italy with aggregate available principal of €2,000 ($2,453 as of December 31,
2020), with no expiration date, which bear interest at market rates that reset at the beginning of each quarter. At December 31, 2020, there were no outstanding
drawings and the aggregate remaining availability under these lines was $2,453. These facilities are collateralized by a common pool of the assets of the Company's
Italian subsidiary.

12. DERIVATIVE INSTRUMENTS

The Company's only outstanding derivative financial instrument is an interest rate swap that is classified as a cash flow hedge of its variable rate debt. The

fair value amounts in the consolidated balance sheets were:

Notional amounts 
Fair values:

(1)

Other assets
Deferred income taxes and other long-term liabilities

December 31,

2020

2019

$

18,406  $

19,594 

— 
603 

13 
— 

(1) 

Notional amounts represent the gross contract/notional amount of the derivative outstanding.

The derivative gains and losses in the consolidated financial statements for the years ended December 31, 2020, 2019 and 2018, related to the Company's

current and previous interest rate swap contracts were as follows:

Effective portion recognized in other comprehensive income (loss), pretax:

Interest rate swap

$

(616) $

(18) $

15 

2020

Year Ended December 31,
2019

2018

13. LEASES

The Company leases certain warehouses, office spaces, land, vehicles and equipment under operating lease agreements. The remaining terms of these leases
range from less than 1 year to 44 years. The operating lease expense for the years ended December 31, 2020, 2019 and 2018, totaled $7,797, $8,800 and $6,175,
respectively. The cash paid for amounts included in the measurement of lease liabilities included in the operating cash flows from operating leases was $6,634 and
$6,802 for the years ended December 31, 2020 and 2019, respectively. The Company does not have any finance lease arrangements.

The Company's operating lease assets and lease liabilities consist of the following as of December 31, 2020 and 2019:

Account

Right-of-use assets
Short-term lease liabilities
Long-term lease liabilities
Total lease liabilities

Classification

Other assets
Accrued expenses and other liabilities
Deferred income taxes and other long-term liabilities

Year Ended December 31,

2020

2019

21,720  $
5,778 
18,448 
24,226  $

23,028 
5,300 
20,410 
25,710 

$

$

F-24

 
 
 
 
Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except share and per share data)

The table below presents the maturities of operating lease liabilities as of December 31, 2020:

2021
2022
2023
2024
2025
Thereafter

Total future minimum lease payments

Less: imputed interest

Present value of lease liabilities

$

$

6,452 
4,854 
3,573 
2,251 
2,076 
8,311 
27,517 
(3,291)
24,226 

Other information relevant to the Company's operating leases consist of the following as of December 31, 2020 and 2019:

Weighted-average remaining lease term
Weighted-average discount rate

14. COMMITMENTS AND CONTINGENCIES

Year Ended December 31,

2020

2019

9 years
3.46 %

9 years
3.58 %

Employment  Agreements —  The  Company  has  entered  into  employment  agreements  with  certain  members  of  senior  management.  The  terms  of  these
agreements  are  up  to  three  years  and  include  non-competition,  non-solicitation  and  nondisclosure  provisions,  as  well  as  provisions  for  defined  severance  for
terminations  of employment  under certain  conditions  and a change of control of the Company. The Company also maintains  a severance  plan for certain  of its
senior management providing for defined severance for terminations of employment under certain conditions and a change of control of the Company.

Contractual Obligations — The Company has entered into various purchase obligations that include agreements for construction of buildings, raw materials

and equipment. Obligations under these agreements were $51,730 and $53,922 as of December 31, 2020 and 2019, respectively.

Legal proceedings —  From  time  to  time,  the  Company  may  be  involved  in  disputes  and  legal  proceedings  in  the  ordinary  course  of  its  business.  These
proceedings may include allegations of infringement of intellectual property, commercial disputes and employment matters. As of December 31, 2020 and through
the date of the Company's subsequent review period of February 22, 2021, the Company has no legal proceedings ongoing that management estimates could have a
material effect on the Company's Consolidated Financial Statements.

15. STOCK-BASED COMPENSATION

Stock-based compensation is included in the following financial statement captions: 

Cost of sales
Sales and marketing
Research and development
General and administrative
Total stock-based compensation
Tax benefit recognized
Net stock-based compensation

2020

Year Ended December 31,
2019

2018

10,392  $
4,395 
9,122 
11,749 
35,658 
(7,498)
28,160  $

9,249  $
3,815 
7,690 
12,824 
33,578 
(5,114)
28,464  $

6,535 
2,550 
6,410 
12,532 
28,027 
(6,632)
21,395 

$

$

F-25

 
 
Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - (Continued)
(In thousands, except share and per share data)

Incentive Plans — In February 2006, the Company's board of directors adopted the 2006 Incentive Compensation Plan (the "2006 Plan"), which provides for
the  issuance  of  stock  options,  performance  stock  units  ("PSUs"),  restricted  stock  units  ("RSUs"),  other  equity-based  awards  and  cash  awards  to  the  Company's
directors, employees, consultants and advisors. In June 2006, the Company's board of directors adopted the Non-Employee Directors Stock Plan (the "Directors
Plan")  for  non-employee  directors,  which  was  subsequently  merged  into  the  2006  Plan.  A  total  of  10,363,465  shares  are  reserved  under  the  2006  Plan.  At
December 31, 2020, 2,851,428 shares of the Company's stock were available for future grant under the 2006 Plan. The Company may grant stock options only at an
exercise price equal to or greater than the fair market value of its common stock on the date of grant. Equity awards generally vest over periods of one to four years
and  generally  expire  ten  years  after  the  date  of  the  grant.  The  vesting  of  awards  under  the  2006  Plan  accelerate  following  the  occurrence  of  certain  change  of
control events, if the participant's employment is terminated within two years without cause or if the successor entity does not agree to assume existing awards or
replace  with equivalent  value awards. Awards granted to non-employee  directors  automatically  become exercisable  upon a change of control.  All shares issued
under the 2006 Plan and Directors Plan are registered shares, newly issued by the Company.

The Company granted certain PSUs to executive officers and other senior managers. PSUs are based on relative total stockholder return ("TSR") and, starting
in 2020, operating cash flow metrics ("OCF"). PSU agreements provide for the award of PSUs with each unit representing the right to receive one share of the
Company's common stock to be issued after the applicable award vesting period. The final number of units awarded, if any, for these performance grants will be
determined as of the vesting dates, based upon (i) in the case of TSR PSUs granted in 2020, the Company's total shareholder return over the performance period
compared to the S&P 1500 Composite / Electronic Equipment Instruments & Components Index, and (ii) in the case of OCF PSUs, the ratios of the Company's
operating cash flow to adjusted net income during three years in the performance period. The final number of units awarded under each of the TSR PSUs and OCF
PSUs could range from between 0% and 200% of the amount of the target award.

During the year ended December 31, 2020, the Company did not grant stock options to employees, replacing them with a grant of RSUs. The assumptions

used in the Black-Scholes model for the calculation of the options were as follows for the years ended December 31:

Expected term
Volatility
Risk-free rate of return
Dividend yield
Forfeiture rate

2019
4.3 - 5.1 years
37% - 38%
1.66% - 2.55%
0.25%
—%

2018
4.1 - 4.9 years
31% - 36%
2.54% - 3.01%
0.25%
—%

The following table summarizes the option activity for the years ended December 31:

Number of Options

Weighted-Average
Exercise Price

Weighted-Average
Remaining Contractual Life
(In years)

Aggregate Intrinsic
Value
(In thousands)

Outstanding — January 1, 2018

Granted
Exercised
Forfeited

Outstanding — December 31, 2018

Granted
Exercised
Forfeited

Outstanding — December 31, 2019

Granted
Exercised
Forfeited

Outstanding — December 31, 2020

Unvested — December 31, 2020

Exercisable — December 31, 2020

73.95 
232.26 
58.94 
131.36 
98.93 
153.78 
56.58 
149.64 
112.03 

70.17 
179.85 
127.74 

171.98 

108.71 

1,797,493  $
257,111 
(282,720)
(24,810)
1,747,074 
334,740 
(192,533)
(46,839)
1,842,442 
— 
(533,716)
(36,103)
1,272,623  $

382,729  $

889,894  $

F-26

5.80 $

58,084 

5.73 $

85,110 

5.47 $

7.57 $

4.57 $

125,550 

21,386 

104,164 

 
 
 
Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - (Continued)
(In thousands, except share and per share data)

The intrinsic value of the options exercised during the years ended December 31, 2020, 2019 and 2018, was $52,868, $17,891 and $51,266, respectively.
There  were  no  options  granted  for  the  year  ended  December  31,  2020.  The  total  compensation  cost  related  to  non-vested  option  awards  not  yet  recorded  at
December 31, 2020 was $13,522 which is expected to be recognized over a weighted-average of 1.9 years.

The following table summarizes the RSUs activity for the years ended December 31:

Number of Shares

Weighted-Average
Grant-Date Fair Value

Weighted-Average
Remaining Contractual Life
(In years)

Aggregate Intrinsic
Value
(In thousands)

Outstanding — January 1, 2018

Granted
Vested
Canceled

Outstanding — December 31, 2018

Granted
Vested
Canceled

Outstanding — December 31, 2019

Granted
Vested
Canceled

Outstanding — December 31, 2020

378,261  $
80,254 
(97,997)
(9,497)
351,021 
120,090 
(147,606)
(16,667)
306,838 
198,606 
(168,733)
(16,025)
320,686  $

96.23 
227.45 
91.62 
121.37 
126.93 
151.94 
120.58 
139.73 
139.09 
145.10 
115.77 
157.36 
154.29 

2.62 $

39,767 

2.57 $

44,467 

1.33 $

71,766 

The intrinsic value of the RSUs that vested during the years ended December 31, 2020, 2019 and 2018, was $22,252, $22,638 and $22,978, respectively. The
total  compensation  cost  related  to  non-vested  RSU  awards  not  yet  recorded  at  December  31,  2020  was  $35,060  which  is  expected  to  be  recognized  over  a
weighted-average of 2.7 years. The aggregate fair value of awards vested during the year ended December 31, 2020 was $19,535.

F-27

 
 
 
Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - (Continued)
(In thousands, except share and per share data)

The  weighted-average  fair  value  of  TSR  PSUs  was  determined  using  the  Monte  Carlo  simulation  model  incorporating  the  following  weighted-average

assumptions:

Performance term
Volatility
Risk-free rate of return
Dividend yield
Weighted-average fair value per share

2020
3.0 years
19% - 44%
1.39%
—%
$169.28

2019
3.0 years
18% - 40%
2.48%
—%
$192.46

2018
3.0 years
13% - 32%
2.41%
—%
$284.78

The following table summarizes TSR PSUs activity for the years ended December 31:

Number of Shares

Weighted-Average
Grant-Date Fair Value

Weighted-Average
Remaining Contractual Life
(In years)

Aggregate Intrinsic
Value
(In thousands)

Outstanding — January 1, 2018

Granted
Vested
Canceled

Outstanding — December 31, 2018

Granted
Vested
Canceled

Outstanding — December 31, 2019

Granted
Vested
Canceled

Outstanding — December 31, 2020

75,949  $
33,706 
— 
— 
109,655 
34,989 
(43,594)
(1,208)
99,842 
18,411 
(48,659)
(1,769)
67,825  $

119.45 
238.12 

146.96 
190.83 
128.54 
228.68 
162.34 
170.42 
106.03 
204.01 
206.21 

1.77 $

12,423 

1.84 $

14,469 

1.28 $

15,179 

TSR PSUs are included at 100% of target goal. The intrinsic value of the TSR PSUs vested during the year ended December 31, 2020 was $6,211. The total
compensation cost related to nonvested awards not yet recorded at December 31, 2020 was $5,190 which is expected to be recognized over a weighted average of
1.8 years. The aggregate fair value of awards vested during the year ended December 31, 2020 was $5,159.

The weighted-average fair value of the OCF PSUs was determined using the Black-Scholes model incorporating the following assumptions:

Performance term
Volatility
Risk-free rate of return
Dividend yield
Weighted-average fair value per share

F-28

2020
3.0 years
—%
1.39%
0.10%
$143.51

 
 
 
Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - (Continued)
(In thousands, except share and per share data)

The following table summarizes OCF PSUs activity for the year ended December 31:

Number of Shares

Weighted-Average
Grant-Date Fair Value

Weighted-Average
Remaining Contractual Life
(In years)

Aggregate Intrinsic
Value
(In thousands)

Outstanding — January 1, 2020

$

Granted
Vested
Canceled

Outstanding — December 31, 2020

— 
24,817  $
— 
(716)
24,101  $

143.51 

143.51 
143.51 

2.16 $

5,394 

OCF PSUs are included at 100% of target goal. The total compensation cost related to nonvested awards not yet recorded at December 31, 2020 was $2,495

which is expected to be recognized over a weighted average of 2.3 years.

16. EMPLOYEE BENEFIT PLANS

The  Company  maintains  a  defined  contribution  retirement  plan  offered  to  all  of  its  U.S.  employees,  as  well  as  plans  at  certain  foreign  and  domestic
subsidiaries. The Company makes matching contributions to each plan, which amounted to approximately $6,253, $6,005 and $4,261, respectively for years ended
December 31, 2020, 2019 and 2018.

The  Company  has  an  employee  stock  purchase  plan  offered  to  its  U.S.  and  German  employees.  The  plan  allows  employees  who  participate  to  purchase
shares of common stock through payroll deductions at a 15% discount to the lower of the stock price on the first day or the last day of the six-month purchase
period.  Payroll  deductions  may  not  exceed  10%  of  the  employee's  compensation  and  are  subject  to  other  limitations.  Compensation  expense  related  to  the
employee stock purchase plan was $2,033, $2,254 and $925 for the years ended December 31, 2020, 2019 and 2018, respectively. As of December 31, 2020, there
were 294,544 shares available for issuance under the employee stock purchase plan.

17. INCOME TAXES

Income before the impact of income taxes for the years ended December 31 consisted of the following:

U.S.
Foreign
Total

2020

2019

2018

$

$

5,490  $

200,202 
205,692  $

59,790  $
188,586 
248,376  $

The Company's provision for income taxes for the years ended December 31 consisted of the following:

2020

2019

2018

Current:
Federal
State
Foreign

Total current

Deferred:
Federal
State
Foreign

Total deferred

Provision for income taxes

$

$

3,871  $
688 
53,608 
58,167 

(10,300)
(1,594)
(919)
(12,813)
45,354  $

7,127  $
2,405 
74,072 
83,604 

(4,896)
(1,658)
(8,935)
(15,489)
68,115  $

F-29

146,855 
387,540 
534,395 

7,274 
2,097 
125,431 
134,802 

2,497 
8,449 
(15,522)
(4,576)
130,226 

 
 
Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - (Continued)
(In thousands, except share and per share data)

A reconciliation of income tax expense at the U.S. federal statutory income tax rate to the recorded tax provision for the years ended December 31, were as

follows:

Tax at statutory rate
Non-U.S. rate differential — net
State income taxes — net
Stock-based compensation - tax benefit
Foreign derived intangible income benefit ("FDII")
Global intangible low-taxed income taxed in the U.S. ("GILTI")
Goodwill impairment
Effect of 2017 U.S. Tax Cuts and Jobs Act
Withholding tax on intercompany dividend
Effect of changes in enacted tax rates on deferred tax assets and liabilities
Federal and state tax credits
Russia investment tax credit
Change in reserves, including interest and penalties
Change in valuation allowance
Other — net

Provision for income taxes

$

$

2020

2019

2018

43,201  $
10,968 
697 
(9,664)
— 
— 
— 
— 
2,193 
(23)
(6,762)
(3,228)
3,878 
2,019 
2,075 
45,354  $

52,159  $
14,958 
2,362 
(5,114)
(4,763)
4,648 
10,009 
— 
3,122 
(639)
(12,173)
— 
779 
4,515 
(1,748)
68,115  $

112,223 
26,985 
3,367 
(13,298)
(7,930)
5,955 
— 
(4,747)
— 
8,007 
(11,024)
— 
2,290 
7,421 
977 
130,226 

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, were as

follows:

Inventory provisions
Allowances and accrued liabilities
Deferred compensation
Other tax credits
Net operating loss carryforwards
Property, plant and equipment
Withholding tax on intercompany dividend
Valuation allowance

Net deferred tax assets

$

$

2020

2019

29,657  $
12,719 
3,256 
15,571 
11,594 
(7,401)
(2,774)
(22,617)
40,005  $

23,611 
10,502 
9,428 
15,001 
5,748 
(18,607)
(3,597)
(14,384)
27,702 

The Company has recorded $2,774 and $3,597 as a deferred tax liability on December 31, 2020 and 2019, respectively, for certain withholding and dividend
taxes related to possible future distributions from subsidiaries to their respective parent companies. The Company paid a dividend from its German subsidiary in
2020 of $166,055 and continues to plan for future dividends to the extent the entity’s cash exceeds its operational and investment needs. Since there is no federal or
withholding  tax  on  such  distributions  from  Germany  to  the  U.S.,  the  Company  has  accrued  only  a  state  tax  on  future  dividends  from  Germany.  Also,  the
Company’s subsidiary in Russia paid a dividend of $50,000 to its parent company in Germany in 2019 and paid a 5% withholding tax on that dividend. In addition,
the Company accrues taxes to the extent that foreign subsidiaries have cash in excess of their operational needs. The withholding tax liabilities at both December
31, 2020 and 2019 are primarily related to dividends out of the Company’s Russian subsidiary. With regard to future repatriation of undistributed earnings of other
non-U.S. subsidiaries, the Company continues to consider these earnings to be indefinitely reinvested to the extent the cash balance in each subsidiary is less than
current needs for operations and expansion. At December 31, 2020 and 2019, the cumulative undistributed earnings in non-U.S. subsidiaries were approximately
$1,051,893 and $1,078,879, respectively.

In determining the Company’s 2020 and 2019 tax provisions, the Company calculated the deferred tax assets and liabilities for each separate tax entity. The

Company then considered a number of factors including the positive and negative

F-30

Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - (Continued)
(In thousands, except share and per share data)

evidence regarding the realization of deferred tax assets to determine whether a valuation allowance should be recognized with respect to the deferred tax assets.

As of December 31, 2020 and 2019, the Company had state tax credit carryforwards (net of federal tax benefit) of $15,571 and $15,003, respectively. The
state tax credit carryforwards begin expiring in 2021. The Company has determined that it is not more likely than not that some of the state credits will be used
before the expiration date and has accrued a valuation allowance of $12,414 and $10,632 as of December 31, 2020 and 2019, respectively.

The  Company  has  tax  loss  carryforwards  in  foreign  jurisdictions  totaling  $36,318  and  $13,218  as  of  December  31,  2020  and  2019,  respectively.  The
Company does not believe it is more likely than not that any of the loss carryforwards can be used and has provided a valuation allowance against the tax benefit of
the  losses  in  foreign  jurisdictions  of  $10,210  and  $3,753  at  December  31,  2020  and  2019,  respectively.  The  Company's  acquisition  of  Menara  Networks,  Inc.
("Menara") in 2016 included net operating loss carryforwards of $22,242. As of December 31, 2020 and 2019, the Company had $5,121 and $8,953 of these net
operating loss carryforwards remaining, respectively. No valuation allowance has been provided for these carryforwards as the Company expects to be able to fully
utilize them to offset future income.

The Company provides reserves for potential payments of tax to various tax authorities related to uncertain tax positions and other issues. Reserves recorded
are based on a determination of whether and how much of a tax benefit taken by the Company in the Company's tax filings or positions is "more likely than not" to
be  realized  following  resolution  of  any  potential  contingencies  present  related  to  the  tax  benefit,  assuming  that  the  matter  in  question  will  be  raised  by  the  tax
authorities. The following is a tabular reconciliation of the total amounts of unrecognized tax benefits:

Balance at January 1

Change in prior period positions
Settlement of prior period position
Additions for tax positions in current period
Foreign exchange adjustments

Balance at December 31

$

$

2020

2019

11,416  $
(427)
— 
4,000 
(283)
14,706  $

11,206 
(1,776)
(230)
2,000 
216 
11,416 

Substantially  all  of  the  liability  for  uncertain  tax  benefits  related  to  various  federal,  state  and  foreign  income  tax  matters,  would  benefit  the  Company's

effective tax rate, if recognized.

Estimated penalties and interest related to the underpayment of income taxes were $305, $543 and $631 for the years ended December 31, 2020, 2019 and
2018, respectively, and are included within the provision for income taxes. Total accrued penalties and interest related to the underpayment of income taxes were
$1,977 and $1,672 at December 31, 2020 and 2019, respectively.

The  Company's  uncertain  tax  positions  are  related  to  tax  years  that  remain  subject  to  examination  by  the  relevant  taxing  authorities.  The  Company  is

currently under a tax audit in the U.S. for the years 2017 to 2018. Open tax years by major jurisdictions are:

United States
Germany
Russia

2017 - 2020
2017 - 2020
2016 - 2020

F-31

Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - (Continued)
(In thousands, except share and per share data)

18. NET INCOME ATTRIBUTABLE TO IPG PHOTONICS CORPORATION PER SHARE

The following table sets forth the computation of diluted net income attributable to IPG Photonics Corporation per share: 

Net income attributable to IPG Photonics Corporation
Net income attributable to common stockholders
Basic weighted average shares

Dilutive effect of common stock equivalents

Diluted weighted average common shares
Basic net income attributable to IPG Photonics Corporation per share
Basic net income attributable to common stockholders
Diluted net income attributable to IPG Photonics Corporation per share
Diluted net income attributable to common stockholders

2020

Year Ended December 31,
2019

2018

$

$
$

$
$

159,572  $
159,572 
53,186 
599 
53,785 

3.00  $
3.00  $

2.97  $
2.97  $

180,234  $
180,234 
53,061 
778 
53,839 

3.40  $
3.40  $

3.35  $
3.35  $

404,027 
404,027 
53,522 
1,204 
54,726 
7.55 
7.55 

7.38 
7.38 

The  computation  of  diluted  weighted  average  common  shares  excludes  certain  common  stock  equivalents,  including  non-qualified  stock  options,  PSUs,
RSUs and the employee stock purchase plan because the effect of including them would be anti-dilutive. The weighted average anti-dilutive shares outstanding for
the years ended December 31, 2020, 2019 and 2018, respectively, were as follows:

Non-qualified stock options
Restricted stock units
Performance stock units

Total weighed average anti-dilutive shares outstanding

2020

Year Ended December 31,
2019

2018

536,500 
29,100 
— 
565,600 

571,000 
58,700 
40,900 
670,600 

204,300 
60,500 
14,900 
279,700 

On  May  5,  2020,  the  Company  announced  that  its  Board  of  Directors  authorized  the  purchase  of  up  to  $200,000  of  IPG  common  stock.  This  new
authorization is separate from, and in addition to, the Company's $125,000 stock repurchase program authorized in February 2019. Under the two share purchase
authorizations, IPG may repurchase shares of common stock (a) in an amount not to exceed the lesser of the number of shares issued to employees and directors
under the Company's various employee and director equity compensation and employee stock purchase plans in 2019 and 2020 or $125,000 plus (b) $200,000, in
both cases exclusive of any fees, commissions or other expenses. Share repurchases may be made periodically in open-market transactions using the Company's
working  capital  and  are  subject  to  market  conditions,  legal  requirements  and  other  factors.  The  share  purchase  program  authorization  does  not  obligate  the
Company to repurchase any dollar amount or number of its shares, and repurchases may be commenced or suspended from time to time without prior notice.

For the years ended December 31, 2020, 2019 and 2018, respectively, the Company repurchased 301,660 shares, 301,262 shares, and 1,051,825 shares of its
common stock with an average price of $125.58, $135.21 and $167.39 per share in the open market, respectively. As of December 31, 2020 the remaining amount
authorized under the programs is up to $246,000, but may be less depending upon the equity compensation and employee stock purchase plan dilution during the
programs. The impact on the reduction of weighted average shares for years ended December 31, 2020, 2019 and 2018 was 201,953 shares, 97,054 shares and
363,936 shares, respectively.

19. RELATED-PARTY TRANSACTIONS

The Company's Chief Executive Officer ("CEO") leases the annual right to use 25% of the Company's corporate aircraft under a lease signed in July 2017.
The lease expires July 2022. The annual lease rate is $925 and future rent payments are adjusted annually. The Company invoiced the CEO $937, $924 and $925 in
2020,  2019,  and  2018,  respectively,  under  the  aircraft  leases.  There  was  $154  due  to  the  Company  at  December  31,  2020,  and  there  were  no  amounts  due  at
December 31, 2019. The CEO directly pays an unrelated flight management firm for the operating costs of his private use including pilot fees, fuel and other costs.

F-32

 
Table of Contents

IPG PHOTONICS CORPORATION
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS - (Continued)
(In thousands, except share and per share data)

In  2020,  2019  and  2018,  the  Company  purchased  various  equipment,  parts  and  services  from  a  company  for  which  one  of  the  Company's  independent
directors  was chairman  of its  board  of  directors.  The  payments  for  2020, 2019 and  2018 totaled  $760, $51 and  $947, respectively.  There  was $566 due  to  this
company at December 31, 2020, and there were no amounts due at December 31, 2019.

The Company sold various equipment and parts to a different company for which one of the Company's independent directors is also an independent director.
The  sales  totaled  $675  for  2020,  and  there  were  no  sales  for  2019  and  2018.  There  was  $334  due  to  the  Company  at  December  31,  2020,  and  there  were  no
amounts due at December 31, 2019.

20. SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

2020
Net sales
Gross profit
Net income attributable to IPG Photonics Corporation
Net income per share, basic
Net income per share, diluted

First Quarter

Second Quarter

Third Quarter

Fourth Quarter

$

249,242  $
102,876 
36,403 
0.69 
0.68 

296,411  $
136,449 
38,226 
0.72 
0.71 

318,441  $
152,792 
35,604 
0.67 
0.66 

336,630 
146,879 
49,339 
0.92 
0.92 

Net income attributable to IPG Photonics Corporation as well as the basic and diluted income per share in the third quarter of the year ended December 31,

2020 were impacted by goodwill impairment discussed in Note 7.

2019
Net sales
Gross profit
Net income (loss) attributable to IPG Photonics Corporation
Net income (loss) per share, basic
Net income (loss) per share, diluted

First Quarter

Second Quarter

Third Quarter

Fourth Quarter

$

315,047  $
148,911 
55,159 
1.04 
1.02 

363,769  $
180,237 
72,272 
1.36 
1.34 

329,138  $
152,858 
57,253 
1.08 
1.07 

306,627 
124,203 
(4,450)
(0.08)
(0.08)

Net income attributable to IPG Photonics Corporation as well as the basic and diluted loss per share in the fourth quarter of the year ended December 31,

2019 were impacted by goodwill impairment, impairment of long-lived assets and other restructuring charges discussed in Notes 6 and 7.

F-33

Subsidiaries of Registrant

Exhibit 21.1

IPG Laser GmbH
NTO IRE-Polus

Name

State or Jurisdiction
of Incorporation
Germany
Russia

Ownership by Registrant as of
December 31, 2020
100%
100%

 
  
  
  
  
  
  
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-139509, 333-151571, 333-167381, 333-177818, 333-206931, and 333-223045
each on Form S-8 of our reports dated February 22, 2021, relating to the consolidated financial statements of IPG Photonics Corporation and subsidiaries (the
"Company") and the effectiveness of the Company's internal control over financial reporting, appearing in this Annual Report on Form 10-K of IPG Photonics
Corporation for the year ended December 31, 2020.

Exhibit 23.1

/s/ DELOITTE & TOUCHE LLP

Boston, Massachusetts
February 22, 2021

CERTIFICATION OF CHIEF EXECUTIVE OFFICER
PURSUANT TO RULE 13a-14(a) OR RULE 15d-14(a)
OF THE SECURITIES EXCHANGE ACT OF 1934

I, Valentin P. Gapontsev, certify that:
1.

I have reviewed this Annual Report on Form 10-K of IPG Photonics Corporation for the year ended December 31, 2020;

Exhibit 31.1

2.

3.

4.

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(s) 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. 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;

b. 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;

c. 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

d. 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

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(s) 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. 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

b. 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.

Date: February 22, 2021

/s/ Valentin P. Gapontsev
Valentin P. Gapontsev
Chairman and Chief Executive Officer
(Principal Executive Officer)

 
CERTIFICATION OF CHIEF FINANCIAL OFFICER
PURSUANT TO RULE 13a-14(a) OR RULE 15d-14(a)
OF THE SECURITIES EXCHANGE ACT OF 1934

I, Timothy P.V. Mammen, certify that:

1.

I have reviewed this Annual Report on Form 10-K of IPG Photonics Corporation for the year ended December 31, 2020;

Exhibit 31.2

2.

3.

4.

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(s) 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. 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;

b. 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;

c. 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

d. 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 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(s) 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. 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

b. 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.

Date: February 22, 2021

/s/ Timothy P.V. Mammen
Timothy P.V. Mammen
Senior Vice President and Chief Financial Officer
(Principal Financial Officer)

 
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32.1

In connection with the filing of the Annual Report on Form 10-K for the fiscal year ended December 31, 2020 (the "Report") by IPG Photonics Corporation
(the "Company"), Valentin P. Gapontsev, the Chief Executive Officer of the Company, and Timothy P.V. Mammen, the Chief Financial Officer of the Company,
each hereby certifies pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:
1

the Report fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934; and

2

the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: February 22, 2021

A signed original of this written statement required by 18 U.S.C. Section 1350 has been provided to IPG Photonics Corporation and will be retained by IPG
Photonics Corporation and furnished to the Securities and Exchange Commission or its staff upon request.

/s/ VALENTIN P. GAPONTSEV
Valentin P. Gapontsev
Chairman and Chief Executive Officer

/s/ TIMOTHY P.V. MAMMEN
Timothy P.V. Mammen
Senior Vice President and Chief Financial Officer