Cabot Microelectronics Corporation

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-K 
☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
FOR THE FISCAL YEAR ENDED SEPTEMBER 30, 2021
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 000-30205
CMC Materials, Inc.
(Exact name of registrant as specified in its charter) 
Delaware
36-4324765
(State of Incorporation)
(I.R.S. Employer Identification No.)
870 North Commons Drive
60504
Aurora, Illinois
(Zip Code)
(Address of principal executive offices)
Registrant’s telephone number, including area code: (630) 375-6631
Securities registered pursuant to Section 12(b) of the Act: 
Title of each class
Trading Symbol(s)
Name of each exchange on which registered
Common Stock, $0.001 par value
CCMP
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 o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging
growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2
of the Exchange Act.
Large accelerated filer
x
Accelerated filer
☐
Non-accelerated filer
☐
Smaller reporting
company
☐
Emerging growth
company
☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or
revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.   o
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 ☒

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The aggregate market value of the registrant’s Common Stock held beneficially or of record by stockholders who are not affiliates of the registrant, based upon the
closing price of the Common Stock on March 31, 2021, as reported by the NASDAQ Global Select Market, was approximately $5,125,185,387.  For the purposes
hereof, “affiliates” include all executive officers and directors of the registrant.
As of October 31, 2021, the Company had 28,425,485 shares of Common Stock outstanding.
DOCUMENTS INCORPORATED BY REFERENCE
Portions of the registrant’s definitive Proxy Statement for the Annual Meeting of Stockholders to be held March 9, 2022, are incorporated by reference in Part III of
this Annual Report on Form 10-K to the extent stated herein.
This Annual Report on Form 10-K includes statements that constitute “forward-looking statements” within the meaning of federal securities regulations. For more
detail regarding “forward-looking statements” see Item 7 of Part II of this Annual Report on Form 10-K.

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CMC MATERIALS, INC.
FORM 10-K
FOR THE FISCAL YEAR ENDED SEPTEMBER 30, 2021 
PART I.
Page
Item 1.
Business
3
Item 1A.
Risk Factors
11
Item 1B.
Unresolved Staff Comments
21
Item 2.
Properties
21
Item 3.
Legal Proceedings
21
Item 4.
Mine Safety Disclosures
21
Information about our Executive Officers
22
PART II.
Item 5.
Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
23
Item 7.
Management’s Discussion and Analysis of Financial Condition and Results of Operations
25
Item 7A.
Quantitative and Qualitative Disclosures about Market Risk
31
Item 8.
Financial Statements and Supplementary Data
33
Item 9.
Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
70
Item 9A.
Controls and Procedures
70
Item 9B.
Other Information
71
PART III.
Item 10.
Directors, Executive Officers and Corporate Governance
72
Item 11.
Executive Compensation
72
Item 12.
Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
72
Item 13.
Certain Relationships and Related Transactions, and Director Independence
73
Item 14.
Principal Accountant Fees and Services
73
PART IV.
Item 15.
Exhibits and Financial Statement Schedules
74
Exhibit Index
74
Signatures
77

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FORWARD-LOOKING STATEMENTS
This Annual Report on Form 10-K includes “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. This
Act provides a safe harbor for forward-looking statements to encourage companies to provide prospective information about themselves so long as they identify
these statements as forward-looking and provide meaningful cautionary statements identifying important factors that could cause actual results to differ from the
projected results. All statements other than statements of historical fact we make in this Annual Report on Form 10-K are forward-looking and address a variety of
subjects including, for example, future sales and operating results; growth or contraction, and trends in the industries and markets in which CMC Materials, Inc.
(“CMC”, “the Company”, “us”, “we”, or “our”), participates, such as the semiconductor, and oil and gas industries; the acquisition of, investment in, or
collaboration with other entities, and the expected benefits and synergies of such transactions; divestment or disposition, or cessation of investment in certain of the
Company’s businesses; new product introductions; development of new products, technologies and markets; product performance; the financial conditions of the
Company’s customers; the competitive landscape that relates to the Company’s business; the Company’s supply chain; the targeted benefits of company cost
reduction or optimization initiatives; natural disasters; various economic or political factors and international or national events, including related to global public
health crises such as the COVID-19 pandemic (“Pandemic”), and the enactment of trade sanctions, tariffs, or other similar matters; the generation, protection and
acquisition of intellectual property, and litigation related to such intellectual property or third party intellectual property; environmental, health and safety laws and
regulations, and related compliance and costs of compliance; the operation of facilities by the Company; the Company’s management; foreign exchange
fluctuation; the Company’s current or future tax rate, including the effects of changes to tax laws in the jurisdictions in which the company operates; cybersecurity
threats and vulnerabilities; and, financing facilities and related debt, pay off or payment of principal and interest, and compliance with covenants and other terms,
uses and investment of the Company's cash balance, including dividends and share repurchases, which may be suspended, terminated or modified at any time for
any reason by the Company, based on a variety of factors. Statements that are not historical facts, including statements about CMC’s beliefs, plans and
expectations, are forward-looking statements. Such statements are based on current expectations of CMC’s management and are subject to a number of factors and
uncertainties, which could cause actual results to differ materially from those described in the forward-looking statements. Except as required by law, CMC
undertakes no obligation to update forward-looking statements made by it to reflect new information, subsequent events or circumstances. The section entitled
“Risk Factors” of this Annual Report on Form 10-K describes some, but not all, of the factors that could cause these differences.

INDEX
PART I
ITEM 1. BUSINESS
OUR COMPANY
CMC Materials, Inc., which was incorporated in the state of Delaware in 1999, is a leading global supplier of consumable materials to semiconductor
manufacturers and pipeline companies. We operate our business within two reportable segments: Electronic Materials and Performance Materials.
RECENT DEVELOPMENTS
Effective October 1, 2020, the Company changed its name from “Cabot Microelectronics Corporation” to “CMC Materials, Inc.”
On April 1, 2021 (“ITS Acquisition Date”), the Company completed the acquisition of 100% of International Test Solutions, LLC (“ITS”) (“ITS
Acquisition”), which designs and produces high-performance consumables used to optimize critical semiconductor testing processes. This acquisition expands our
product offering within the Electronic Materials business segment. The Consolidated Financial Statements included in Item 8 of Part II of this Annual Report on
Form 10-K include the financial results of ITS from the ITS Acquisition Date. See Note 4 of “Notes to the Consolidated Financial Statements” included in Item 8
of Part II of this Annual Report on Form 10-K for a discussion of the ITS Acquisition.
In the fourth quarter of fiscal 2019, we made a strategic decision to exit the wood treatment business by approximately early calendar year 2022, and focus our
strategy and future capital investments on our other businesses. Leading up to the planned closure of the Matamoros and Tuscaloosa facilities, we intend to
continue to operate the existing facilities and serve our wood treatment customers. For additional information, refer to Note 10 of “Notes to the Consolidated
Financial Statements” included in Item 8 of Part II of this Annual Report on Form 10-K.
ELECTRONIC MATERIALS SEGMENT
The Electronic Materials segment consists of our chemical mechanical planarization (“CMP”) slurries, CMP pads, electronic chemicals, and materials
technologies businesses. These businesses supply consumable products used in integrated circuit (“IC”) device manufacturing and other aspects of the
semiconductor and data storage industries.
IC devices, or “chips”, are components in a wide range of electronic systems for computing, communications, manufacturing and transportation. The multi-
step manufacturing process for IC devices typically begins with a circular wafer of pure silicon, which then undergoes a process of alternating insulating and
conducting layers until the desired wiring within the IC device is achieved. At the conclusion of the process, the wafer is cut into individual IC devices, which are
then packaged to form individual chips. Consumers most frequently encounter IC devices in smart phones and tablets, desktop or laptop computers, automotive
applications, gaming devices, and televisions.
CMP SLURRIES AND CMP PADS
The Company develops, produces, and sells CMP slurries for polishing a wide range of materials used in IC devices, including tungsten, dielectric materials,
copper, tantalum (commonly referred to as “barrier”), and aluminum, and for polishing bare silicon wafers, as well as disk substrates and magnetic heads used in
hard disk drives. We also develop, manufacture, and sell CMP polishing pads, which are used in conjunction with slurries in the CMP process. Our CMP pads can
be used on a variety of polishing tools and wafers, over a range of technology nodes and applications, including tungsten, copper, and dielectrics.
CMP slurries and pads (“CMP consumables”) are used to remove excess material that is deposited during the IC manufacturing process and to level and
smooth the surfaces of the layers of IC devices via a combination of chemical reactions and mechanical abrasion, leaving minimal residue and defects on the
surface, with only the material necessary for circuit integrity remaining. CMP enables IC device manufacturers to produce smaller, faster, and more complex IC
with a greater density of transistors. CMP also helps reduce the number of defective or substandard IC devices, which increases the device yield. An effective CMP
process is achieved through technical optimization of the CMP consumables in conjunction with an appropriately designed CMP process and generally requires
slurries and pads to be qualified in its processes through an extensive series of tests and evaluations. While this qualification process varies depending on numerous
factors, it can be costly and may take six months or longer to complete. IC device manufacturers usually assess quality, cost, time required, and impact on
production when they consider implementing or switching to a new CMP slurry or pad.
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ELECTRONIC CHEMICALS
In our electronic chemicals business, we offer semiconductor-grade wet chemicals with purities that extend to the parts-per-trillion (ppt) level. We produce and
sell high-purity process chemicals through the formulation, purification, and blending of acids, solvents, and other wet chemicals primarily used to etch, clean, and
dry silicon wafers during the production of semiconductors, photovoltaics (solar cells), and flat panel displays.
Our electronic chemicals products include sulfuric, phosphoric, nitric and hydrofluoric acids, ammonium hydroxide, hydrogen peroxide, isopropyl alcohol,
other specialty organic solvents and various blends of chemicals. As the IC manufacturing process moves to more advanced technology nodes and the complexity
of the process continues to increase, quality and purity of the materials become even more critical to the device yield. Increasing levels of purity and achieving
lower levels of variation in our electronic chemicals business are required to enable next-generation IC technologies. Our advanced chemical purification
technologies, including distillation, ion exchange, gas adsorption, and filtration, are designed to provide consistently low contaminant levels in a variety of high-
purity process chemicals. We continue to work to develop industry-leading metrology and analytical methods to measure the purity levels achieved.
MATERIALS TECHNOLOGIES
In our materials technologies business, which comprises the ITS business, we develop and manufacture high-performance consumable products for cleaning
advanced probe cards and test sockets at semiconductor manufacturing facilities. These engineered polymer solutions improve customer yields and throughput in
wafer and package test operations at semiconductor device manufacturers, foundries, and outsourced semiconductor assembly and test (OSAT) facilities. We also
design innovative polymer products for semiconductor fabs that improve front-end tool uptime and reduce operating costs.
STRATEGY
Technology and innovation are vital to our Electronic Materials business, and we devote significant resources to research and development. We believe our
focused effort on advanced technologies with technology-leading customers enables us to provide more compelling new products as semiconductor devices
continue to advance. We focus our research and development activity to deliver innovative consumable products for advanced applications for our technology-
leading customers. We have strategically located our research and development and clean room facilities, manufacturing operations, and related quality, field
application, technical and customer support teams close to our customers to be responsive to their needs, which we believe provides us with a competitive
advantage.
We also focus on building close relationships with our customers. We collaborate with them to identify and deliver new and improved solutions, to integrate
our products into their manufacturing processes, and to assist them with supply, warehouse and inventory management.
We believe another competitive advantage is product and supply chain quality. Our customers demand continuous improvement in our products, in terms of
product performance, quality and consistency. In pursuit of this, we work to continuously improve and innovate with respect to our own products, and as part of
that, we require our raw materials suppliers, who provide us with certain important elements of our CMP slurries, pads and electronic chemicals, to do the same.
We believe our capabilities in supply chain management and quality systems differentiate us from our competitors, and that our worldwide CMP consumables
manufacturing plants and global network of suppliers also provide supply chain flexibility as needed. In our electronic chemicals business, we are responsible for
product performance, purity levels and analytical testing, and in our view, our ability to maintain high quality levels and superior supply chain process is a
competitive advantage.
INDUSTRY TRENDS
SEMICONDUCTOR INDUSTRY
Demand within the semiconductor industry is driven by smart phones, tablets, personal computers (“PCs”), servers, and a wide range of other electronic
applications, including high-performance computing and artificial intelligence. Over time, overall semiconductor industry demand has fluctuated as a result of
numerous factors, including the changing mix of demand drivers, semiconductor fab utilization, pressure to reduce costs, and the pace of technology advancement.
Over the past decade there has been a significant shift in semiconductor industry demand from IC devices for PCs to hand-held consumer electronic devices.
Future demand for advanced semiconductor devices is expected to be driven by applications such as high performance computing, virtual and augmented reality,
artificial intelligence, and 5G, as well as increased demand for greater connectivity with remote work and learning requirements, wearables, peripherals, the
internet of things, and increased semiconductor content in automobiles. While demand conditions may fluctuate, we continue to believe that semiconductor
industry demand will grow over the long term based on increased usage of IC devices in existing applications as well as future applications.
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Over the past several years, we have seen consolidation in the customer base within the semiconductor industry. Costs to achieve the required scale in
manufacturing within the semiconductor industry continue to rise, along with the related costs of research and development, and larger manufacturers generally
have greater access to the resources necessary to manage their businesses than do smaller participants.
As demand for more advanced and lower cost electronic devices grows, there is ongoing pressure on IC device manufacturers to reduce their costs.
Manufacturers have historically reduced cost and simultaneously improved device performance by migrating to smaller technology nodes. To achieve performance
and cost improvements, semiconductor manufacturers are placing greater emphasis on new device architectures, including 3D memory and FinFET. Many
manufacturers reduce costs by pursuing ever-increasing scale in their operations, while seeking to reduce their production costs by increasing their production
yields regardless of their scale. However, as the industry continues to shrink dimensions, leading edge technology node transitions are becoming more challenging
due to technical and physical obstacles, and the pace of technology change has slowed. Thus, semiconductor manufacturers look for semiconductor materials
products, such as CMP consumables and electronic chemicals, to help enable the achievement of technology progression with quality and performance attributes
that can help them achieve their overall performance targets, cost structure, and to drive yield improvement.
DEMAND
Demand for our CMP consumables and electronic chemicals products reflects semiconductor industry demand patterns in terms of growth, cyclicality and
seasonality, and varying demand for specific device types. Consistent with other participants in the semiconductor industry, we experienced increased demand from
our customers in our fiscal 2021 from the prior year, as certain sectors such as cloud, PCs and servers continued to show strength, driven by the initial economic
recovery from the Pandemic, particularly in the industrial and automotive sectors. Over the long term, we anticipate worldwide demand for CMP consumables and
electronic chemicals used by IC device manufacturers to grow as a result of expected long-term growth in wafer starts, and the trend to more advanced
technologies. With respect to CMP consumables, we believe there will continue to be an associated increase in the number of CMP polishing steps required to
produce these advanced devices, and the introduction of new materials that are expected to require CMP. With respect to electronic chemicals, we believe there
will be increasing demand as customers are transitioning to advanced technology nodes, which require an increasing number of processing steps used on each
wafer and materials with higher purity levels.
COMPETITION
We compete in the semiconductor industry, which is characterized by technology advances, demanding requirements for product quality and consistency, and
lower cost of ownership. We face competition from other suppliers of electronic materials. We believe we are the leading global supplier of CMP slurries, with a
broad range of innovative solutions. Our CMP slurry competitors range from small companies that compete with a single product or in a single geographic region,
to divisions of global companies with multiple lines of CMP products. With respect to CMP polishing pads, DuPont has held the leading position in this area for
many years. Several other companies also participate in CMP consumables.
For our electronic chemicals business, there are various competitors with whom we compete in different regions, through both localized production and
importation. These competitors include Avantor, BASF, Honeywell, Kanto Corporation and Technic, among others. We believe our business in Europe is
comparable to other providers, and other than in Singapore, at present we do not participate materially in the business in Asia.
CUSTOMERS, SALES, AND MARKETING
Within the semiconductor industry, our customers are generally producers of logic or memory IC devices, or providers of IC foundry services. Some logic
customers, and so-called “fabless” companies, outsource some or all the production of their devices to foundries, which provide contract manufacturing services, in
order to avoid the high cost of process development, construction and operation of a fab, or to provide additional capacity when needed.
We market our products primarily through direct sales to our customers, although we use distributors in certain areas, such as in China. We believe this
strategy of primarily direct sales provides us an additional means to collaborate closely with our customers and provides our customers with the most efficient
means by which to procure our products. As part of our sales process, our logistics and sales personnel provide supply, warehouse and inventory management
services for our customers.
For additional information on our customers, refer to Note 2 of “Notes to the Consolidated Financial Statements” included in Item 8 of Part II of this Annual
Report on Form 10-K.
RESEARCH, DEVELOPMENT AND TECHNICAL
As technology advances and semiconductor materials and designs increase in complexity, these challenges require significant investments in research,
development and technical support (“R&D”), and we plan to continue to devote significant resources to R&D, and balance our efforts between shorter and longer-
term industry needs.
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Our global R&D team includes experts from the semiconductor industry and scientists and engineers from key disciplines required for the development of
high-performance CMP consumable products. We operate CMP-related R&D facilities primarily in the U.S., with certain development capabilities in Taiwan and
South Korea, as well as in Singapore for data storage products, and in Japan for silicon wafer products. We also operate electronic chemicals product development
facilities in the U.S., Europe, and Singapore. In addition to R&D, we have a global team focused on quality improvements and analytical developments.
RAW MATERIALS SUPPLY
Engineered abrasive particles are significant raw materials we use in many of our CMP slurries; we also use certain raw materials in producing our CMP pads.
Our strategy is to secure various sources of different raw materials, as appropriate, to enable the desired performance of our products, and monitor those sources as
necessary to provide supply assurance. We have multi-year supply agreements with several suppliers for the purchase of raw materials in the interest of supply and
quality assurance, and to control costs.
In our electronic chemicals business, we rely on a variety of suppliers for our raw materials, some of which we purchase pursuant to purchase orders, and
others which we purchase under supply contracts. The number of suppliers is often limited, particularly as to the specific grade of raw material required by us to
supply high purity products to our customers.
PERFORMANCE MATERIALS SEGMENT
Our Performance Materials segment includes our pipeline and industrial materials (“PIM”), wood treatment, and QED Technologies International, Inc.
(“QED”) businesses. We are a leading global provider of products, services, and solutions for optimizing pipeline throughput and maximizing performance and
safety. Our PIM products include drag-reducing agents (“DRAs”), valve greases, cleaners and sealants, and related equipment supporting pipeline and adjacent
industries. We also provide routine and emergency maintenance services as well as training for customers in the pipeline and adjacent industries worldwide.
Through QED, our precision optics business, we serve the precision optics industry with capital equipment, consumables, and services. KMG-Bernuth operates the
wood treatment business, which manufactures and sells wood treatment preservatives made from pentachlorophenol (“penta”) for utility poles and crossarms.
PIM PRODUCTS AND SERVICES
We are a leading global provider of performance products and services to pipeline companies. We supply DRAs, valve greases, cleaners and sealants, and
related services and equipment, including routine and emergency valve maintenance services and training, to customers in the pipeline and adjacent industries. Our
PIM products and services provide value-added specialty products that optimize pipeline efficiency, lower operating costs, and enhance safety. We operate
facilities for the manufacture, formulation and distribution of our products in the U.S. and Canada. Our PIM products are sold under the brands Flowchem,
Sealweld, and Val-Tex.
We provide polymer-based DRAs for crude oil transmission. We have several product offerings to meet specific customer needs depending on the physical
properties of the oil being pumped and various geographic climate conditions. Our products provide benefit to our customers by reducing the pressure loss in a
pipeline due to turbulent flow within it. This allows pipeline operators to maximize product flow while maintaining safe operating pressure and reducing energy
consumption.
We develop, manufacture, and sell products used for maintaining and extending the operational lifespan of lubricated isolation valves. We also service valves
inline and under pressure through our field services division and provide training to customers in the pipeline and adjacent industries globally.
WOOD TREATMENT
The wood treatment preservatives business supplies penta-based products to industrial customers in the U.S. and Canada who use this preservative to pressure
treat utility poles and crossarms to extend their useful life by protecting against insect damage and decay. Penta products include solid blocks, which are
manufactured by KMG-Bernuth at its facility in Matamoros, Mexico, and penta concentrate liquid that is processed from penta blocks at KMG-Bernuth’s plant in
Tuscaloosa, Alabama. We are the only manufacturer of penta-based preservatives in North America.
In the fourth quarter of fiscal 2019, we made a decision to exit the wood treatment business and focus our strategy and future capital investments on our other
businesses. Our Matamoros, Mexico facility will continue to produce an intermediate product until it ceases operations by the end of December 2021. Our
Tuscaloosa, Alabama plant will continue to process and sell to customers this intermediate product, into approximately the second quarter of fiscal year 2022. For
additional information, refer to Note 10 of “Notes to the Consolidated Financial Statements” included in Item 8 of Part II of this Annual Report on Form 10-K.
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QED
QED is a leading provider of deterministic finishing and advanced measurement technology to the precision optics industry. We design and produce precision
polishing and metrology systems for advanced optics applications that allow customers to attain near-perfect shape and surface finish on a range of optical
components such as mirrors, lenses and prisms. QED’s products also include magneto-rheological polishing fluids, consumables, spare and replacement parts, as
well as optical polishing services and other customer support services. We are applying our technical expertise in polishing techniques to applications in other
industries where shaping, enabling, and enhancing the performance of surfaces is critical to success. We believe precision optics are pervasive, serving several
large existing industries such as semiconductor equipment, aerospace, defense, biomedical, research and digital imaging.
STRATEGY
Our strategy for our Performance Materials segment includes expanding the PIM business, delivering high quality products to our customers, and driving
demand for our products.
PIM PRODUCTS AND SERVICES
We focus on providing superior customer service to our customers while delivering consistent, high quality DRA products that meet their needs at a
competitive price. We intend to continue to serve current customers as they bring new capacity online and to grow our business through attracting and serving new
customers. In addition, we continue to develop other products focused on the pipeline transmission area for which we believe DRAs can serve currently unmet
needs.
Additionally, we continue to work to drive demand for our products by promoting valve best practices to energy industry operators that align with current and
trending global regulations and sustainable practices. Our primary focus is the promotion of our critical sealing products as an alternative to more costly
mechanical solutions for achieving isolation in aged infrastructure.
QED
Our focus for QED is to provide innovative and industry-leading products and services to the precision optics industry. We continue to drive demand for our
products to new and existing customers by developing new equipment and capabilities, pursuing emerging applications, and communicating the unique value
offered by our products.
DEMAND
PIM PRODUCTS AND SERVICES
Demand for our PIM products and services is driven by new pipeline construction, increasing rate of adoption, oil and gas production capacity, and focus on
safety for the aging infrastructure. Demand for our PIM products has been negatively impacted by the Pandemic and the related extreme global reduction in and
restrictions related to plane, automotive, and industrial activity. Although improving, the impact of the Pandemic on the oil and gas industry resulted in an
impairment charge in our PIM business unit in our second fiscal quarter of fiscal 2021. However, as the industry recovers, we expect to drive growth in our PIM
business.
QED
Demand for products produced by QED is typically driven by the trends in the underlying industries that utilize precision optics, such as semiconductor
equipment, aerospace, defense, research, biomedical, and digital imaging. Since our primary QED business is the sale of capital equipment, our results are typically
affected by levels of capital spending in these industries. Historically, capital spending is cyclical, and is impacted by general macroeconomic conditions,
government spending and policies, as well as industry-specific trends and dynamics.
COMPETITION
In our PIM business, LiquidPower Specialty Products Inc. holds a leading position in DRAs, with Baker Hughes as another primary provider. There are also
other smaller participants in the sector. For our additional PIM products and services, however, participants include numerous other businesses with none appearing
to hold a leadership position.
In QED, there are few direct competitors but we believe our technology is unique and provides a competitive advantage to customers in the precision optics
industry, which still relies heavily on traditional artisanal methods of fabrication.
In our wood treatment business, we are the only manufacturer of penta-based wood treatment preservatives in North America.
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CUSTOMERS, SALES, AND MARKETING
PIM PRODUCTS AND SERVICES
We provide DRAs to several major mid-stream pipeline transmission companies both domestically and internationally. We have a U.S.-based sales network, a
U.S.-based transportation and logistics operations, and a global network of distributors and agents to manage the sales and delivery of our products. For our
additional PIM products and services, we market and sell to pipeline and adjacent industry customers, such as service companies, and major utility distribution
companies via direct sales and channel partners.
WOOD TREATMENT
We are the only manufacturer of penta-based wood treatment preservatives for utility poles and crossarms in North America and only supply penta to
customers in the U.S. and Canada. We do not have other products or business in this area.
QED
QED supports customers in the semiconductor equipment, aerospace, defense, research, biomedical, and digital imaging industries. QED counts among its
worldwide customers leading precision optics manufacturers, major semiconductor original equipment manufacturers, research institutions, and contractors to the
U.S. and other governments.
RESEARCH, DEVELOPMENT AND TECHNICAL
For our PIM products, we focus our U.S.-based research and development activities on both improving existing product performance as well as developing
new products and technologies to serve our customers’ needs.
For QED, R&D activities are primarily focused on the development of new polishing and metrology capabilities, as well as additional capabilities for our
polishing services group.
RAW MATERIALS SUPPLY
For both our PIM products and our wood treatment products, we depend on outside suppliers for the raw materials needed to produce them and are subject to
fluctuations in the price of those materials, which we purchase from a limited number of suppliers. Most of QED’s business is capital equipment-based, thus, there
are minimal raw material supply issues that we face within this business unit.
INTELLECTUAL PROPERTY
We believe our intellectual property is important to our success and ability to compete, and in addition to it, we also differentiate our products and technology
by their high quality and reliability, and our quality systems, global supply chain and logistics. As of October 31, 2021, we had approximately 1,440 active
worldwide patents, of which approximately 280 are U.S. patents, and approximately 350 pending worldwide patent applications, of which approximately 50 are in
the U.S.
Many of these patents are important to our continued development of new and innovative products for CMP and related processes, as well as for new
businesses. Our patents have a range of duration. We attempt to protect our intellectual property rights through a combination of patent, trademark, copyright and
trade secret laws, use of certain manufacturing technologies, exclusive contractual arrangements with suppliers, and with employee and third party-nondisclosure
and assignment agreements. We refresh our intellectual property on an ongoing basis through continued innovation. We vigorously protect and defend our
intellectual property and have been successful in this regard.
Most of our intellectual property has been developed internally, but we also may acquire intellectual property from others to enhance our intellectual property
portfolio. These enhancements may be via licenses or assignments, or we may acquire certain proprietary technology and intellectual property when we make
acquisitions. We believe these technology rights can enhance our competitive advantage by providing us with future product development opportunities and
expanding our intellectual property portfolio.
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ENVIRONMENTAL, SAFETY AND HEALTH AND OTHER REGULATORY MATTERS
ENVIRONMENTAL, SAFETY AND HEALTH MATTERS
Our facilities and operations are subject to various environmental, safety, and human health laws and regulations, both at a federal and state or local level,
including those relating to air emissions, wastewater discharges, chemical manufacture and distribution, the handling and disposal of solid and hazardous wastes,
storage and disposal, and various other occupational safety and health matters. Governmental authorities can enforce compliance with their regulations, and
violators may be subject to civil, criminal, and administrative penalties, injunctions, or both. We believe that our facilities are in substantial compliance with
applicable environmental laws and regulations. Our major operations in the U.S., France, Italy, Japan, Singapore, South Korea, Taiwan, and the United Kingdom
are certified under current ISO 14001 Environmental and ISO 45001 Safety and Health standards, which require that we implement and operate according to
various procedures that demonstrate waste reduction, energy conservation, injury reduction and other environmental, health and safety objectives. We continue to
pursue certification of certain additional facilities under the ISO 45001 standards. For our ongoing businesses we have incurred, and will continue to incur, capital
and operating expenditures and other costs in complying with environmental, safety and health laws and regulations in the U.S. and other countries in which we do
business, but we do not expect these costs will be material. For additional information, refer to Item 1A “Risk Factors”, Item 3 “Legal Proceedings”, and Note 19
of “Notes to the Consolidated Financial Statements” included in Item 8 of Part II of this Annual Report on Form 10-K.
EMPLOYMENT AND LABOR RELATIONS MATTERS
We are subject to numerous foreign, federal, state and local government laws and regulations governing our relationships with our employees, including those
relating to minimum wage, overtime, working conditions, hiring and firing, non-discrimination, work permits and employee benefits. We believe that our
operations are in substantial compliance with such laws and regulations. We have not experienced any significant work stoppages or disruptions to our business
relating to employee matters. We believe that our relationship with our employees is good. For additional information, refer to Item 1A “Risk Factors” and Item 1,
Business, Environmental, Safety and Health and Other Regulatory Matters -- “Employees and Talent (Human Capital) Management.”
IMPORT AND EXPORT CONTROL AND RELATED MATTERS
We manufacture, market and sell our products both inside and outside the U.S. Certain products are subject to the Export Administration Regulations,
administered by the U.S. Department of Commerce, Bureau of Industry and Security, which require that we obtain an export license before we can export certain
controlled products or technology to specified countries. Additionally, some of our QED products are subject to the International Traffic in Arms Regulations,
which restrict the export of information and material that may be used for military or intelligence applications by a foreign person. We also are subject to the
import regulations administered by U.S. Customs and Border Protection, and to the regulations administered by the U.S. Department of the Treasury, Office of
Foreign Assets Control, implementing economic sanctions against designated countries, governments, and persons based on U.S. foreign policy and national
security considerations.
Similar controls exist in other countries and regions. Failure to comply with these laws could result in sanctions by the U.S. or other respective government,
including substantial monetary penalties, denial of import or export or other privileges and debarment from government contracts. We maintain an import and
export compliance program under which we screen import and export and other transactions against current lists of restricted imports or exports or other
transactions, destinations and end users with the objective of managing related decisions, transactions and shipping and banking logistics to comply with these
requirements.
EMPLOYEES AND TALENT (HUMAN CAPITAL) MANAGEMENT
We believe our employees are the foundation of our success. Our overall talent acquisition and retention strategy is designed to attract and retain diverse and
qualified candidates to meet our performance goals on an ongoing basis and enable the success of the Company.
We are focused on employee safety and health and a shared culture of results, caring, candor, and learning, which are foundations of our Company’s values,
and are expressed in our Code of Business Conduct, to which all employees certify, and related policies and procedures in the countries in which we do business.
With respect to employee health and safety measures, we focus on ongoing education with respect to environmental, health and safety (“EHS”) matters, and injury
prevention and reduction across all our operations. We track injury rates on an ongoing basis and compare them to the average injury rates for chemical
manufacturers as well as to semiconductor industry manufacturers; we believe we have been below each of these industry averages for the past five years.
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In fiscal 2020 we urgently focused our EHS efforts around the world, including education and enhanced health and safety protocols, on employee well-being
and prevention of the spread of the Pandemic at our facilities and in our communities. Through fiscal 2021, we have continued to focus on health and safety in our
response to the Pandemic, including encouragement and support of vaccinations for our employees, social distancing protocols, work-from-home flexibility, and
restrictions on non-essential travel. We expect to continue to adhere to these measures until the Pandemic is adequately contained, and we may take further actions
as government authorities require or recommend or as we determine to be in the best interests of our employees and the business overall. For additional
information, refer to Item 1A “Risk Factors.”
As of September 30, 2021, we employed approximately 2,200 individuals, including approximately 1,500 in operations, approximately 300 in research and
development and technical, and approximately 400 in sales, general and administration. Approximately 1,200 of these individuals located in the U.S. and
approximately 1,000 of these individuals located outside of the U.S., with approximately 700 in Asia Pacific, approximately 200 in Europe and approximately 100
in Canada and Mexico.
We believe that attracting and maintaining diverse talent in our workforce is an important driver of company performance. We are committed in our efforts to
increase diversity and foster an inclusive work environment that welcomes and values the unique backgrounds, cultures, ethnicities, genders, experiences, and
perspectives of our employees globally. Of our Executive Officers, 50% identify as female and 50% identify as male.
To support our employees in advancing their careers, we offer a wide range of formal and informal training opportunities. We have a performance
management framework that includes goal setting, feedback and coaching, performance reviews, and professional development.
In general, our employees are not covered by collective bargaining agreements, but we do have some workers who are subject to such agreements, or part of
workers’ councils, or similar arrangements, primarily in Europe, Mexico, and Singapore. We provide various employee benefits to our employees around the
world. Some examples of this are: an employee stock purchase plan, a parental leave program, and a paid time off program to global employees; statutory health
care and pension benefits to our employees outside the U.S.; and, a health and welfare benefits plan and a defined contribution savings plan to U.S. employees. See
Note 17 of “Notes to the Consolidated Financial Statements” included in Item 8 of Part II of this Annual Report on Form 10-K.
FINANCIAL INFORMATION ABOUT GEOGRAPHIC AREAS
For financial information about geographic areas, see Note 22 of “Notes to the Consolidated Financial Statements” included in Item 8 of Part II of this Annual
Report on Form 10-K.
AVAILABLE INFORMATION
Our annual reports on Form 10-K, quarterly reports on Form 10-Q, definitive proxy statements on Schedule 14A, current reports on Form 8-K, and any
amendments to those reports, as well as any other filings with the Securities and Exchange Commission (“SEC”), are made available free of charge on our
Company website, www.cmcmaterials.com, as soon as reasonably practicable after such reports are filed or furnished with the SEC. Our Code of Business Conduct
and certain other governance documents are also available on our website, www.cmcmaterials.com. Statements regarding beneficial ownership of our securities by
our executive officers and directors are made available on our Company website following the filing of such with the SEC. In addition, the SEC’s website
(http://www.sec.gov) contains reports, proxy statements, and other information that we file electronically with the SEC.
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ITEM 1A. RISK FACTORS
RISKS RELATING TO OUR BUSINESS, STRATEGY AND OPERATIONS
OUR BUSINESS AND RESULTS OF OPERATIONS MAY CONTINUE TO BE ADVERSELY AFFECTED BY THE ONGOING CORONAVIRUS
(COVID-19) PANDEMIC AND RELATED ADVERSE IMPACT TO WORLDWIDE ECONOMIC AND INDUSTRY CONDITIONS
The global impact of the Pandemic created significant volatility, uncertainty and economic disruption across the world and in the countries and locations in
which we and our customers and suppliers operate, which continues in varying degrees and locations, especially in places experiencing low vaccination rates
and/or the spread of variants of the COVID-19 virus. Overall, our Electronic Materials segment has remained generally stable throughout the Pandemic, and has
showed strengthening through fiscal year 2020 and 2021, with increased demand conditions in fiscal 2021 from the prior year in each of our Electronic Materials
businesses, despite the ongoing nature of the Pandemic. With respect to our Performance Materials segment, the Pandemic has had a significant adverse impact on
our Performance Materials’ PIM business, which first appeared during the second half of our fiscal year 2020 and has continued through fiscal year 2021, as the
demand for drag reducing agents (“DRAs”) declined significantly due to the ongoing dislocation in the energy sector caused by the Pandemic. Although this
business showed some improvement in demand conditions at different times during fiscal 2021, recovery has been lower than anticipated, and as described in Note
9 of “Notes to the Consolidated Financial Statements” included in Item 8 of Part II of this Annual Report on Form 10-K, certain factors related to it continue to
adversely affect the PIM reporting unit. The extent to which the ongoing Pandemic may further impact our business, operations, results of operations and financial
condition is uncertain and difficult to estimate, and depends on numerous evolving factors that we may not be able to accurately predict, which may include: An
additional decrease in short-term and long-term demand and pricing for our products and services, and an ongoing adverse global economic environment with
respect to inflationary pressures and supply chain dislocations that could further reduce demand and/or pricing for our products and services; Disruptions to our
supply chain in connection with the sourcing of or pricing for materials, equipment and logistics or other services and support necessary to our business as a longer
term result of the Pandemic and efforts to contain the spread of the Pandemic; Adverse impacts on our business and those of our customers resulting from renewed
actions taken by governments, businesses, or the general public in an effort to limit exposure to and spread of such infectious diseases, such as renewed travel
restrictions, quarantines, and business shutdowns or slowdowns; Negative impacts to our operations, including reductions in production levels, research and
development (“R&D”) activities, and qualification activities with our customers, and increased costs resulting from our efforts to mitigate the impact of the
Pandemic through additional or continued social-distancing measures we have enacted at our locations around the world in an effort to protect our employees’
health and well-being (including working from home, reducing the number of employees or others in our sites at any one time and how such individuals perform
work while at our sites, redesigning or adjusting our manufacturing, R&D and office facilities, and suspending or limiting employee travel); and, deterioration of
worldwide credit and financial markets that could limit our ability to obtain external financing to fund our operations and capital expenditures, result in losses on
our holdings of cash and investments due to failures of financial institutions and other parties, and result in losses on our accounts receivables due to credit defaults
or our customers’ inability to pay. Although the rollout of vaccination programs in the U.S., Europe, parts of Asia and other places in which we operate is
encouraging with respect to the containment and abatement of the Pandemic, limited availability of vaccines in certain places and/or low vaccination rates,
contributes to ongoing uncertainty with respect to the Pandemic’s impact on our business and operations, and the resumption of what was previously considered
normal business operations after such interruption also remains uncertain, and may be further delayed or constrained by lingering effects of the Pandemic on our
Company and our customers, suppliers, and third-party service providers. These effects, alone or taken together, could have a material adverse effect on our
business, results of operations, legal exposure, or financial condition; an example of such effect is the impairment charge related to our PIM business described in
Note 9 of “Notes to the Consolidated Financial Statements” included in Item 8 of Part II of this Annual Report on Form 10-K. A further sustained or prolonged
outbreak or return of the Pandemic in the places in which we do business, such as that seen in the spread of variants of the COVID-19 virus through our fiscal
2021, could exacerbate the adverse impact of such measures on our Company.
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DEMAND FOR OUR PRODUCTS FLUCTUATES AND OUR BUSINESS MAY BE ADVERSELY AFFECTED BY WORLDWIDE ECONOMIC,
INDUSTRY AND OTHER CONDITIONS
Our business is affected by economic and industry conditions, such as those still being adversely affected by the Pandemic, and the majority of our revenue
derives from our Electronic Materials segment, which is primarily dependent upon semiconductor industry demand. With respect to our Electronic Materials
segment, historically, semiconductor industry demand has fluctuated due to economic and industry cycles and seasonal shifts in demand, which can affect our
business, causing demand for our electronic materials products to fluctuate. For example, prior to the Pandemic, the relatively soft demand conditions in the
semiconductor industry that had commenced in our second fiscal quarter of 2019 and continued into our first fiscal quarter of 2020 had begun to ameliorate in the
beginning of the second fiscal quarter of 2020. While our Electronic Materials segment experienced relatively stable conditions during the second half of fiscal
2020 and showed strengthening through fiscal 2021, uncertainty remains as to our fiscal 2022 demand conditions for the semiconductor industry given the ongoing
nature of the Pandemic and related macroeconomic challenges, including inflationary pressures, supply chain and logistics challenges, as well as related including
supply constraints at our customers serving certain areas, such as the automotive and industrial sectors. Furthermore, competitive dynamics within the
semiconductor industry may impact our business. Our limited visibility to future customer orders makes it difficult for us to predict industry trends, especially
during unusual adverse circumstances, such as the Pandemic and related macroeconomic factors. If the global economy or the semiconductor industry does not
continue to improve or weakens again, whether in general or as a result of the Pandemic or other specific factors, such as macroeconomic factors, or unpredictable
events such as natural disasters, geopolitical conditions and international trade tensions, civil unrest, geopolitical factors, or additional global health crises, we
could experience material adverse impacts on our results of operations and financial condition. Some additional factors that may affect demand for our electronic
materials products include: demand trends for different types of electronic devices such as logic versus memory integrated circuit (“IC”) devices, or digital versus
analog IC devices; the various technology nodes at which those products are manufactured; customers' efficiencies in the use of CMP consumables and/or high-
purity process chemicals (“electronic chemicals”); customers’ device architectures and specific manufacturing processes; the short order to delivery time for our
products; quarter-to-quarter changes in customer order patterns; market share and competitive gains and losses; and pricing changes by us and our competitors.
As to our Performance Materials segment our PIM business may continue to be impacted by changes in the oil and gas industries, such as we have seen since
the second half of our fiscal 2020 and through our fiscal 2021 resulting from ongoing significant dislocation in these industries caused by the Pandemic and supply
chain related challenges. Expectations about future prices and price volatility in the sector, which affect our customers’ activity levels, are important in determining
future spending levels for customers of our PIM products and services. The ongoing volatility in worldwide oil and natural gas prices and markets are an example
of historical volatility in this sector, and such volatility is likely to continue in the future. As is currently the case, prices for oil and natural gas are subject to wide
fluctuations in response to relatively minor or major changes in the supply of and demand for oil and natural gas, market uncertainty and a variety of additional
factors that are beyond our control. These factors include, but are not limited to, decreases or increases in supplies from U.S. shale production or other oil
production, geopolitical conditions, including civil unrest and international trade tensions, sovereign debt crises, the domestic and foreign supply of oil and natural
gas, the level of consumer demand due to economic growth or contraction such as seen related to the Pandemic, and related factors in countries such as China,
weather conditions, domestic and foreign governmental regulations and taxes, the price and availability of alternative fuels, the health of international economic
and credit markets, the ability of the members of the Organization of the Petroleum Exporting Countries and other state-controlled oil companies to agree upon and
maintain oil price and production controls, and general economic conditions, such as those currently seen arising from the Pandemic.
Further, adverse global economic, industry and other conditions such as those arising from the Pandemic could have other negative effects on our Company.
For instance, we could experience negative impacts on cash flows due to the inability of our customers to pay their obligations to us, or our production processes
could be harmed if our suppliers significantly raise their prices, or cannot fulfill their obligations, to us. As a result of these or other conditions, and as experienced
in our second fiscal quarter with the impairment charge we took in our PIM business unit, further described in Note 9 of “Notes to the Consolidated Financial
Statements” included in Item 8 of Part II of this Annual Report on Form 10-K, we also might have to further reduce the carrying value of goodwill and other
intangible assets, which could harm our financial position and results of operations.
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WE MAY PURSUE ACQUISITIONS OF, INVESTMENTS IN, AND MERGERS OR STRATEGIC ALLIANCES WITH OTHER ENTITIES, WHICH
COULD DISRUPT OUR OPERATIONS AND HARM OUR OPERATING RESULTS IF THEY ARE UNSUCCESSFUL, OR WE MAY ENCOUNTER
UNANTICIPATED ISSUES IN IMPLEMENTING THEM
We expect to continue to make investments in technologies, assets and companies, either through acquisitions, mergers, investments or alliances, in order to
supplement our organic growth and development efforts. Acquisitions, mergers, and investments, including the acquisition of KMG, which we completed in
November 2018, and the ITS Acquisition, which we completed in April 2021, involve numerous risks, including the following: difficulties and risks in integrating
the operations, technologies, digital and physical security, compliance programs, products and personnel of acquired companies; difficulties and risks from
unanticipated issues arising subsequent to a transaction related to the other entity; potential disruption of relationships with third parties such as customers or
suppliers; diversion of management's attention from normal daily operations of the business; increased risk associated with foreign operations including exposure
to new rules, regulations, customs and workforce expectations; potential difficulties and risks in entering markets or industries in which we have limited or no
direct prior experience and/or where competitors have stronger positions; potential difficulties and unexpected situations arising in operating new businesses with
different business models, facilities and operations; potential difficulties with regulatory or contract compliance in areas in which we have limited or no experience;
initial dependence on unfamiliar supply chains or relatively small supply partners; insufficient revenue to offset increased expenses associated with acquisitions;
potential loss of key employees of the acquired companies; or inability to effectively cooperate and collaborate with our alliance partners.
Further, we may never realize the perceived or anticipated benefits of a business combination or merger with, or asset or other acquisition of, or investments
in, other entities. Transactions such as the acquisitions of KMG and ITS could and in some cases have had negative effects on our results of operations, in areas
such as contingent liabilities, gross margins, amortization charges related to intangible assets and other effects of accounting for the purchases of other business
entities. Investments in and acquisitions of technology-related or early-stage companies or assets are inherently risky because these businesses or assets may never
develop, and we may incur losses related to these investments.
In addition, we may be required to impair the carrying value of these acquisitions or investments to reflect other than temporary declines in their value. The
carrying value of goodwill represents the fair value of acquired businesses in excess of identifiable assets and liabilities as of the acquisition date. The carrying
value of other intangible assets represents the fair value of customer relationships, trade names and other acquired intangible assets as of the acquisition date.
Goodwill and other acquired intangible assets expected to contribute indefinitely to our cash flows are not amortized, but must be evaluated for impairment by
management at least annually. If the carrying value exceeds the implied fair value of goodwill, the goodwill is considered impaired and is reduced to fair value via
a non-cash charge to earnings. If the carrying value of an indefinite-lived intangible asset is greater than its fair value, the intangible asset is considered impaired
and is reduced to fair value via a non-cash charge to earnings. If the value of goodwill or other acquired intangible assets is impaired, our results of operations and
financial condition could be adversely affected. Examples of asset impairment charges we recently incurred include the charge we took in the second quarter of
fiscal 2021 related to the PIM business unit and the charge we took in each the fourth quarter of fiscal 2019, the fourth quarter of fiscal 2020, and the each of our
four quarters of fiscal 2021 related to the KMG wood treatment business due to our decision in fiscal 2019 to exit this business. We expect that the carrying value
of the wood treatment reporting unit will not be recoverable, resulting in future impairments of goodwill. The amount of such impairments could be material and
could adversely affect our results of operations and financial condition. See Notes 9 and 10 of “Notes to the Consolidated Financial Statements” included in Item 8
of Part II of this Annual Report on Form 10-K for additional discussion.
Furthermore, the integration of the acquired businesses into our operations is a complex and time-consuming process that may not be successful. Our
Company has a limited history of integrating significant acquisitions, and the process of integration may produce unforeseen operating difficulties and
expenditures. As demonstrated in the acquisitions of KMG and ITS, the primary areas of focus for successfully combining those businesses with our operations
may include and have included, among others: retaining and integrating key employees; realizing synergies; aligning customer and supplier interfaces, and
operations across the combined business; integrating enterprise resource planning and other information technology systems; and, managing the growth of the
combined company. Even if we successfully integrate an acquired business into our operations, there can be no assurance that we will realize the anticipated
benefits of such acquisition.
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WE HAVE A CONCENTRATED PRODUCT RANGE WITHIN EACH OF OUR SEGMENTS AND OUR PRODUCTS MAY BECOME OBSOLETE,
OR TECHNOLOGICAL CHANGES MAY REDUCE OR LIMIT INCREASES IN THE CONSUMPTION OF OUR PRODUCTS
Although our product offerings have expanded over the past several years, including as a result of the acquisitions of KMG and ITS, our business remains
substantially dependent on products in our Electronic Materials segment, such as CMP slurries, pads and electronic chemicals, and materials technologies, which
account for the majority of our revenue. The product offerings in our Performance Materials segment are similarly concentrated. As such, our business would
suffer if these products became obsolete or if consumption of these products decreased. Our success depends on our ability to keep pace with technological changes
and advances in the industries in which we operate, particularly the semiconductor industry, to adapt, improve and customize our products in response to evolving
customer needs and industry trends, and to differentiate our products from those of our competitors. Since its inception, the semiconductor industry, which is the
largest industry in which we operate, has experienced technological changes and advances in the design, manufacture, performance and application of IC devices.
Our customers continually pursue lower cost of ownership and higher quality and performance of materials consumed in their manufacturing processes, including
products in our Electronic Materials business segment, as a means to reduce costs, increase the yield in their manufacturing facilities, and achieve desired
performance of the IC devices they produce. We expect these technological changes, and this drive toward lower costs, higher quality and performance and higher
yields, will continue in the future. Potential technology developments in the semiconductor industry, as well as our customers' efforts to reduce consumption of
CMP consumables, including through use of smaller quantities, could render our products less important to the IC device manufacturing process.
A SIGNIFICANT AMOUNT OF OUR BUSINESS COMES FROM A LIMITED NUMBER OF LARGE CUSTOMERS AND OUR REVENUE AND
PROFITS COULD DECREASE SIGNIFICANTLY IF WE LOST ONE OR MORE OF THESE CUSTOMERS OR BUSINESS FROM THEM
Our customer base is concentrated among a limited number of large customers in each of our segments. Currently, our principal business supplies electronic
materials primarily to the semiconductor industry. The semiconductor industry has been consolidating as the larger semiconductor manufacturers have generally
grown faster than the smaller ones, through business gains, mergers and acquisitions, and strategic alliances. Industry analysts predict that this trend will continue,
which means the semiconductor industry will continue to be comprised of fewer and larger participants in the future if their prediction is correct. In addition, our
customer base in our PIM business is also somewhat concentrated, with large entities predominant, and outside of the U.S., these entities frequently are state-
owned or sponsored, and limited in number per country. One or more of these principal customers could stop buying products from us or could substantially reduce
the quantity of products purchased from us. Our principal customers in both our segments also hold considerable purchasing power, which can impact the pricing
and terms of sale of our products. Any deferral or significant reduction in the quantity or price of products sold to these principal customers, an inability to raise
prices to address cost pressures or otherwise, or a weakening of the financial condition of or failure to perform contractual obligations by one of these principal
customers, could significantly harm our business, financial condition and results of operations.
ANY PROBLEM OR DISRUPTION IN OUR SUPPLY CHAIN, INCLUDING SUPPLY OF OUR MOST IMPORTANT RAW MATERIALS, OR IN
OUR ABILITY TO MANUFACTURE OR DELIVER OUR PRODUCTS TO OUR CUSTOMERS, COULD ADVERSELY AFFECT OUR RESULTS
OF OPERATIONS
We depend on our supply chain to enable us to meet the demands of our customers. Our supply chain includes the raw materials we use to manufacture our
products, our production operations and the means by which we deliver our products to our customers. Our business could be adversely affected by any problem or
interruption in the supply of the key raw materials we use in our products, including raw materials that do not meet the stringent quality and consistency
requirements of our customers, any problem or interruption that may occur during production or delivery of our products, such as weather-related problems, natural
disasters, logistics challenges, global public health crises such as the ongoing Pandemic, geopolitical, trade or labor-related issues, civil unrest, or any difficulty in
producing sufficient quantities of our products to meet growing demand from our customers. In particular, natural disasters and severe weather conditions have the
potential to adversely affect our operations, damage facilities and increase our costs, and those conditions may also have an indirect effect on our operations by
disrupting services provided by service companies or suppliers with whom we have a business relationship. Additionally, some of our full-time employees are
represented by labor unions, works councils or comparable organizations, particularly in Mexico and Europe. An extended work stoppage, slowdown or other
action by our employees could significantly disrupt our business. As our current agreements with labor unions and works councils expire, we cannot provide
assurance that new agreements will be reached at the end of each period without union action, or that a new agreement will be reached on terms satisfactory to us.
Future labor contracts may be on terms that result in higher labor costs to us, which also could adversely affect our results of operations. As experienced in the
second half of our fiscal 2021 and ongoing, our supply chain may also be negatively impacted by unanticipated price increases due to factors such as inflation or to
supply restrictions beyond the control of our Company or our raw materials suppliers, such as those related to or arising from the Pandemic.
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We believe it would be difficult to promptly secure alternative sources of key raw materials in the event one of our suppliers becomes unable to supply us with
sufficient quantities of raw materials that meet the quality and technical specifications required by us and our customers, or the costs of such raw materials increase
in an untenable manner. Requalifying and/or transferring our sourcing to a new supplier would likely result in manufacturing delays and additional costs. In
addition, new contract terms, forced production or manufacturing changes, contractual amendments to existing agreements with, or non-performance by, our
suppliers, including any significant financial distress our suppliers may suffer, could adversely affect us. Also, if we change the supplier or type of key raw
materials we use to make our products, in particular our electronic materials products, or are required to purchase them from a different manufacturer or
manufacturing facility or otherwise modify our products, in certain circumstances our customers might have to requalify our products for their manufacturing
processes and products. The requalification process could take a significant amount of time and expense to complete and could occupy technical resources of our
customers that might otherwise be used to evaluate our new products, thus delaying potential revenue growth, or motivate our customers to consider purchasing
products from our competitors, possibly interrupting or reducing our sales of products to these customers, especially sales of our electronic materials products to
our semiconductor industry customers, but also with respect to our PIM products to our pipeline and adjacent industry customers. In addition, government
authorities in the foreign countries in which we operate may require or incentivize the use of local suppliers that are our competitors, which could adversely impact
our business, including our results of operations.
OUR BUSINESS COULD BE ADVERSELY IMPACTED IF WE ARE NOT SUCCESSFUL IN ACHIEVING TARGETED SAVINGS AND
EFFICIENCIES FROM COST REDUCTION INITIATIVES
To mitigate cost challenges and improve our business and financial performance, we have initiated an enterprise-wide cost optimization program designed to
reduce expenses and enhance operational efficiencies. These actions may include position eliminations, location rationalization, and reductions in outside services
and discretionary spending, as well as other actions to reduce costs. We may not realize anticipated cost savings or other benefits from such initiatives, whether at
all or according to timetables we have established. If we are unable to realize the anticipated benefits, our ability to fund other initiatives may be adversely affected,
and failure to implement these initiatives in accordance with our plans could adversely affect our business.
OUR BUSINESS COULD BE SERIOUSLY HARMED IF OUR COMPETITORS DEVELOP COMPETITIVE PRODUCTS, OFFER BETTER
PRICING, SERVICE OR OTHER TERMS, OR OBTAIN OR ASSERT CERTAIN INTELLECTUAL PROPERTY RIGHTS
Competition from other electronic materials or performance materials providers or any new entrants could seriously harm our business and results of
operations, and this competition could continue to increase. Competition has and will likely continue to impact the prices we are able to charge for our products, as
well as our overall business. In addition, our competitors could have, obtain or assert intellectual property rights that could affect or restrict our ability to market
our existing products and/or to innovate and develop new products, thus increasing our costs of doing business, could attempt to introduce products similar to ours
following the expiration of our patents, or could attempt to introduce products that do not fall within the scope of our intellectual property rights.
WE ARE SUBJECT TO RISKS ASSOCIATED WITH OUR INTERNATIONAL OPERATIONS
We currently have operations and a large customer base outside the U.S. Approximately 68% of our revenue was generated by sales to customers outside the
U.S. for the fiscal year ended September 30, 2021. We may encounter risks in doing business in certain countries other than the U.S., including, but not limited to,
adverse changes in economic and political conditions, both in foreign locations and in the U.S. with respect to non-U.S. operations of U.S. businesses like ours,
geopolitical and/or trade tensions, global health crises such as the ongoing Pandemic, civil unrest, fluctuation in exchange rates, changes in international trade
requirements and sanctions and/or tariffs that affect our business and that of our customers and suppliers, compliance with a variety of foreign laws and regulations
and related audits and investigations, as well as difficulty in enforcing business and customer contracts and agreements, including protection of intellectual
property rights. We also may encounter risks that we may not be able to repatriate additional earnings from our operations outside the U.S., derive anticipated tax
benefits of these operations or recover the investments made in them, whether due to regulatory or policy changes in the U.S. or in the countries outside of the U.S.
in which we do business, or other factors.
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In particular, China continues to be an important market for the semiconductor industry, and an area of continued potential growth for us. As business between
China and the rest of the world has continued to grow, there is risk that geopolitical, political, diplomatic and national security factors, changes in U.S. and foreign
laws and regulations, the imposition of trade restrictions, tariffs and taxes, and global public health crises such as the Pandemic could adversely affect business for
companies like ours. This is due in significant part to the complex relationships among China, the U.S., and other countries, especially those in the Asia Pacific
region, such as Taiwan, which also is important to our company with respect ot our customers as well as our operations, which could have a material adverse
impact on our business. In addition, there are risks that the Chinese government may, among other things, require the use of local suppliers, compel companies that
do business in China to partner with local companies to conduct business, or, provide incentives to government-backed local customers to buy from local suppliers
rather than companies like ours, all of which could adversely impact our business, including our results of operations. Also, as seen in fiscal year 2020 and fiscal
2021, there are risks that the U.S. government may impose additional export restrictions on technology and products that companies that operate in the
semiconductor industry supply to or use in China, which could adversely impact our business and our results of operations.
In addition, we have operations and customers located in the United Kingdom, which exited the European Union (“EU”). As the transitional provisions under
which the United Kingdom and the EU had agreed to operate expired at the end of December 2020, and the parties are still in the process of implementing new
trade agreements, the related impacts on our business remain unclear.
LEGAL, COMPLIANCE AND REGULATORY RISKS
WE ARE SUBJECT TO EXTENSIVE ENVIRONMENTAL LAWS AND REGULATIONS AND MAY INCUR COSTS THAT HAVE AN ADVERSE
EFFECT ON OUR FINANCIAL CONDITION AS A RESULT OF VIOLATIONS OF OR LIABILITIES UNDER THEM
Like other companies involved in environmentally sensitive businesses, our operations and properties are subject to extensive and stringent federal, state, local
and foreign Environmental, Health and Safety (“EHS”) laws and regulations, including those concerning, among other things:
•
the marketing, sale, use and registration of our chemical products, such as penta, which is part of the wood treatment business in our Performance
Materials segment;
•
the treatment, storage and disposal of wastes;
•
the investigation and remediation of contaminated media including but not limited to soil and groundwater;
•
the discharge of effluents into waterways;
•
the emission of substances into the air; and
•
other matters relating to environmental protection and various health and safety matters.
The United States EPA and other federal and state agencies in the U.S., as well as comparable agencies in other countries where we have facilities or sell our
products, such as Canada or Mexico, have the authority to promulgate regulations that could have a material adverse impact on our operations. These EHS laws
and regulations may require permits for certain types of operations, require the installation of expensive pollution control equipment, place restrictions upon
operations or impose substantial liability for pollution and other EHS concerns resulting from our operations. Compliance with EHS laws and regulations has
resulted in ongoing costs for us and could restrict our ability to modify or expand our facilities, continue production, require us to install costly emission control
equipment, or incur significant other expenses, including environmental compliance costs. We continue to manage environmental compliance activities at certain
sites, such as at KMG-Bernuth’s Tuscaloosa, Alabama facility as described in Note 19 of “Notes to the Consolidated Financial Statements” included in Item 8 of
Part II of this Annual Report on Form 10-K. We have incurred, and expect to continue to incur, significant costs to comply with EHS laws or to address liabilities
for contamination resulting from past or present operations. Federal, state and foreign governmental authorities may seek fines and penalties, as well as injunctive
relief, for violation of EHS laws and regulations, and could, among other things, impose liability on us to cleanup or to respond to potential damages to the
environment or natural resources resulting from a release of pesticides, hazardous materials or other chemicals into the environment. We maintain insurance
coverage for sudden and accidental environmental pollution or damages. We do not believe that insurance coverage for environmental pollution or damage that
occurs over time is available at a reasonable cost. Also, we do not believe that insurance coverage for the full potential liability that could be caused by sudden and
accidental pollution incidents is available at a reasonable cost. Accordingly, we may be subject to an uninsured or under-insured loss in such cases; the KMG-
Bernuth warehouse fire, as described in Note 19 of “Notes to the Consolidated Financial Statements” included in Item 8 of Part II of this Annual Report on Form
10-K, may be such an instance.
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The distribution, sale and use of our products is subject to prior governmental approvals and thereafter ongoing governmental regulation: Our products are
subject to laws administered by federal, state and foreign governments, including regulations requiring registration, approval and labeling. The labeling
requirements restrict the use and type of application for our products. More stringent restrictions could make our products less desirable which would adversely
affect our sales and profitability. All venues where our penta products are used also require registration prior to marketing or use.
Governmental regulatory authorities have required, and may require in the future, that certain scientific testing and data production be provided on our
products. Under the Federal Insecticide, Fungicide and Rodenticide Act (“FIFRA”), the EPA requires registrants to submit a wide range of scientific data to
support U.S. registrations. This requirement significantly increases our Operating expenses, and we expect those expenses will continue in the future while we
operate the wood treatment business. Because scientific analyses are constantly improving, we cannot determine with certainty whether or not new or additional
tests may be required by regulatory authorities. While good laboratory practice standards specify the minimum protocols and procedures that must be followed in
order to ensure the quality and integrity of data related to these tests submitted to the EPA, there can be no assurance that the EPA will not request certain tests or
studies be repeated. In addition, more stringent legislation or requirements may be imposed in the future and proposed amendments to the Toxic Substances
Control Act could result in increased regulatory controls , additional testing of chemicals we manufacture and could increase the costs of compliance for our
operations. We can provide no assurance that the cost of such compliance will not adversely affect our profitability. Our products could also be subject to other
future regulatory action that may result in restricting or completely banning their use which could have an adverse effect on our performance and results of
operations.
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INDEX
1. The Registration, Evaluation and Authorization of Chemicals (“REACH”) legislation may affect our ability to manufacture and sell certain products in the
EU: REACH requires chemical manufacturers and importers in the EU to prove the safety of their products. We were required to pre-register certain products and
file comprehensive reports, including testing data, on each chemical substance, and perform chemical safety assessments. Additionally, substances of high concern
are subject to an authorization process. Authorization may result in restrictions on certain uses of products or even prohibitions on the manufacture or importation
of products. The full registration requirements of REACH have been phased in over several years, and we have incurred additional expense to cause the registration
of our products under these regulations. REACH may also affect our ability to import, manufacture and sell certain products in the EU. In addition, other countries
and regions of the world already have or may adopt legislation similar to REACH that affect our business, affect our ability to import, manufacture or sell certain
products in these jurisdictions, and have required or will require us to incur increased costs.
2. The classification of penta as a Persistent Organic Pollutant (“POP”) under the Stockholm Convention adversely affected our ability to manufacture or sell
our penta products: The Conference of the Parties (“COP”) accepted the recommendation of the United Nations Persistent Organic Pollutant Review Committee
that the use of penta should be banned except that its use for the treatment of utility poles and crossarms could continue for an extended period of five to ten years.
KMG-Bernuth supplies penta to industrial customers who use it primarily to treat utility poles and crossarms. The U.S. is not bound by the determination of the
COP because it did not ratify the Stockholm Convention treaty. Canada and Mexico are governed by the treaty. KMG-Bernuth’s sole penta manufacturing facility
is located in Matamoros, Mexico, and its processing facility is located in Tuscaloosa, Alabama. As a result of the classification of penta as a POP, the Mexican
government requires KMG-Bernuth to cease producing penta in Mexico by the end of calendar year 2021. In July 2020, the Canadian government released a
proposed order that sales and use of penta in Canada be ceased, but such proposed order is subject to a comment period and is not final, and no timing for any such
order, if implemented, has been proposed. In March 2021, the EPA issued a preliminary interim registration review decision (“PID”) proposing the cancellation of
penta registration and implementation of a five-year phase-out period for production and sell-through of penta stocks. We do not believe the PID or the Canadian
government proposed order have a significant adverse effect on our business because in July 2019, KMG-Bernuth had communicated that we did not intend to
continue the wood treatment business past approximately the end of calendar year 2021. We took a restructuring charge in our fourth fiscal quarter of 2019, and
asset impairment charges in each of our fourth fiscal quarters of 2020 and 2019, as well as in each of our fiscal quarters of fiscal 2021, related to the decisions to
close the Matamoros and Tuscaloosa facilities and to exit the wood treatment business, as described further in Note 19 of “Notes to the Consolidated Financial
Statements” included in Item 8 of Part II of this Annual Report on Form 10-K. We expect to take additional impairment charges related to the wood treatment
business as we approach the closure dates of the facilities. No assurance can be given that we will not incur significant expenditures in connection with closing the
facilities, or that the ultimate action of the COP and our related decisions will not adversely impact on our financial condition and results of operation.
3. Our use of hazardous materials exposes us to potential liabilities: Our manufacturing and distribution of chemical products, such as our electronic
chemicals, involves the controlled use of hazardous materials. Our operations, therefore, are subject to various associated risks, including chemical spills,
discharges or releases of toxic or hazardous substances or gases, fires, mechanical failure, storage facility leaks and similar events. Our suppliers are subject to
similar risks that may adversely impact the availability of raw materials. While we adapt our manufacturing and distribution processes to the environmental control
standards of regulatory authorities, we cannot completely eliminate the risk of accidental contamination or injury from hazardous or regulated materials, including
injury of our employees, individuals who handle our products or goods treated with our products, or others who claim to have been exposed to our products, nor
can we completely eliminate the unanticipated interruption or suspension of operations at our facilities due to such events. We may be held liable for significant
damages or fines in the event of contamination or injury, and such assessed damages or fines could have an adverse effect on our financial performance and results
of operations.
CURRENT OR FUTURE CLIMATE CHANGE REGULATIONS COULD RESULT IN INCREASED OPERATING COSTS AND REDUCED
DEMAND FOR OUR PRODUCTS
The U.S. has recently rejoined the Paris Climate Accord but to date, has not ratified the Kyoto Protocol. The Clean Air Act has been interpreted to regulate
greenhouse gas (“GHG”) emissions and the EPA is using its existing regulatory authority to develop regulations requiring reduction in GHG emissions from
various categories of sources, such as when a permit is required due to emissions of other pollutants. Because of the lack of any comprehensive legislation program
addressing GHGs, a number of U.S. federal laws related to GHG emissions have been considered by the U.S. Congress from time to time and various state, local
and regional regulations and initiatives have been enacted or are being considered related to GHGs.
18

INDEX
Member States of the EU each have an overall cap on emissions, which are approved by the European Commission, and implement the EU Emissions Trading
Directive as a commitment to the Kyoto Protocol. GHG emissions are regulated by Member States through the EU Emission Trading System and the EU Effort
Sharing Decision/Regulation depending upon the industry sector. Organizations apply to the Member State for an allowance of GHG emissions. These allowances
are tradable so as to enable companies that manage to reduce their GHG emissions to sell their excess allowances to companies that are not reaching their
emissions objectives. Failure to purchase sufficient allowances will require the purchase of allowances at a current market price.
Any laws or regulations that may be adopted to restrict or reduce emissions of GHGs could cause an increase to our raw material costs, require us to incur
increased operating costs, and have an adverse effect on demand for our products and our financial performance and results for our business.
In addition to GHG and climate change regulatory developments and legislation, we are continuing to evaluate and assess the potential impact on our business
of the ongoing transition worldwide to a low carbon, resilient economy as well as physical effects resulting from climate change.
OUR PRODUCTS MAY BE RENDERED OBSOLETE OR LESS ATTRACTIVE BY CHANGES IN INDUSTRY REQUIREMENTS OR BY SUPPLY-
CHAIN DRIVEN PRESSURES TO SHIFT TO ENVIRONMENTALLY PREFERABLE ALTERNATIVES
Changes in regulatory, legislative and industry requirements, or changes driven by supply-chain pressures, may shift current customers away from products
using penta, products containing hazardous materials, or certain of our other products and toward alternative products that are believed to have fewer
environmental effects. The EPA, foreign and state regulators, local governments, private environmental advocacy organizations, investors and investor advisory
firms, and a number of large industrial companies have proposed or adopted policies designed to decrease the use of a variety of chemicals, including penta and
others included in certain of our products, such as those containing hazardous materials, or to counteract the growth of certain industries such as those in which
customers served by our PIM products operate. Our ability to anticipate changes in regulatory, legislative, investor, and industry requirements, or changes driven
by supply-chain pressures, may affect our ability to remain competitive. Further, we may not be able to comply with changed or new regulatory or industrial
standards that may be necessary for us to remain competitive.
We cannot provide assurance that the EPA, foreign and state regulators or local governments will not restrict the uses of certain of our products, like penta, or
ban the use of one or more of these products or the raw materials in them. Similarly, companies who use our products may voluntarily decide to reduce
significantly or cease the use of our products. As a result, our products may become obsolete or less attractive to our customers.
GENERAL COMMERCIAL, OPERATIONAL, FINANCIAL AND REGULATORY RISKS
BECAUSE WE RELY ON OUR INTELLECTUAL PROPERTY, OUR FAILURE TO ADEQUATELY OBTAIN OR PROTECT IT COULD
SIGNIFICANTLY HARM OUR BUSINESS
Protection of intellectual property is particularly important in the semiconductor industry, which is the primary industry in which we participate, because we
develop complex technical formulas and processes for products that are proprietary in nature and differentiate our products from those of our competitors. Our
intellectual property is important to our success and ability to compete. We attempt to protect our intellectual property rights through a combination of patent,
trademark, copyright and trade secret laws, as well as employee and third-party nondisclosure and assignment agreements. In addition, we protect our product
differentiation through various other means, such as proprietary supply arrangements for certain raw materials, and use of certain manufacturing technologies. Due
to our international operations, we pursue protection in different jurisdictions, which may provide varying degrees of protection, and we cannot provide assurance
that we can obtain adequate protection in each such jurisdiction. Our failure to obtain or maintain adequate protection of our intellectual property rights for any
reason, including through the patent prosecution process or in the event of litigation related to such intellectual property, which we pursue when necessary to
protect our rights against others who are found to be misusing our intellectual property, could seriously harm our business. In addition, certain types of intellectual
property, such as patents, expire after a certain period of time, and products protected by our patents then lose such protection, so we refresh our intellectual
property portfolio on an ongoing basis through continued innovation, and failure to do so could adversely affect our business. Also, the costs of obtaining or
protecting our intellectual property could negatively affect our operating results.
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INDEX
OUR INABILITY TO ATTRACT AND RETAIN KEY PERSONNEL COULD CAUSE OUR BUSINESS TO SUFFER
We utilize and rely upon a global workforce. If we fail to attract and retain the necessary managerial, technical and customer support personnel, our business
and our ability to maintain existing and obtain new customers, develop new products and provide acceptable levels of customer service could suffer. We compete
worldwide with other participants in the industries in which we conduct business for qualified personnel, particularly those with significant experience in the
semiconductor and pipeline industries. The loss of services of key employees, or our inability to obtain or maintain visas or other travel or residency documents on
their behalf with respect to our business needs, could harm our business and results of operations.
BECAUSE WE HAVE LIMITED EXPERIENCE IN BUSINESS AREAS OUTSIDE OF ELECTRONIC MATERIALS AND PERFORMANCE
MATERIALS, EXPANSION OF OUR BUSINESS INTO OTHER PRODUCTS AND APPLICATIONS MAY NOT BE SUCCESSFUL
An element of our strategy has been to leverage our customer relationships, technological expertise and other capabilities and competencies to expand our
business. For example, we have made acquisitions to expand beyond CMP consumables into other electronic materials product areas, as well as into performance
materials product areas in which we have limited experience. Expanding our business into new product areas could involve technologies, production processes and
business models in which we have limited experience, and we may not be able to develop and produce products or provide services that satisfy customers' needs, or
we may be unable to keep pace with technological or other developments. Or, we may decide that we no longer wish to pursue these new business initiatives. Also,
our competitors may have or obtain intellectual property rights that could restrict our ability to market our existing products and/or to innovate and develop new
products.
CERTAIN CRITICAL INFORMATION SYSTEMS COULD BE SUSCEPTIBLE TO CYBERSECURITY AND OTHER THREATS OR
VULNERABILITIES
We maintain and rely upon certain critical information systems for the effective operation of our business. These information systems include, but are not
limited to, telecommunications, the Internet, our corporate intranet, various computer hardware and software applications, production control systems, enterprise
resource planning systems, network communications, and email. These information systems may be owned and maintained by us, our outsourced providers, or
third parties such as vendors, contractors, and Cloud providers. All these information systems are subject to disruption, breach or failure from various sources
including, but not limited to, attacks, degradation, and failures resulting from potential sources, including viruses, malware, denial of service, ransomware,
destructive or inadequate code, power failures, and physical damage. Confidential and/or sensitive information stored on these information systems, or transmitted
to or from Cloud storage, could be intentionally or unintentionally compromised, lost, and/or stolen. While we have implemented security procedures and virus
protection software, intrusion prevention systems, access control, and emergency recovery processes to mitigate risks like these with respect to information systems
that are under our control, they are not fail-safe and may be subject to breaches or failures. Further, we cannot assure that third parties upon whom we rely for
various IT services will maintain sufficient vigilance and controls over their systems. Our inability to use or access these information systems at critical points in
time, or unauthorized releases of personal or confidential information, could unfavorably impact the timely and efficient operation of our business, including our
results of operations, and our reputation, as well as our relationships with our employees or other individuals whose information may have been affected by such
cybersecurity incidents.
In addition, regulatory authorities have increased their focus on how companies collect, process, use, store, share and transmit personal data. Privacy security
laws and regulations, including the United Kingdom’s Data Protection Act 2018 and the EU General Data Protection Regulation 2016, and similar laws in
countries such as Korea and Taiwan, among others, pose increasingly complex compliance challenges, which may increase compliance costs, and any failure to
comply with data privacy laws and regulations could result in significant penalties that could adversely affect our business and results of operations.
OUR ABILITY TO RAISE CAPITAL IN THE FUTURE MAY BE LIMITED, WHICH COULD PREVENT US FROM GROWING, AND OUR
EXISTING CREDIT AGREEMENT COULD RESTRICT OUR BUSINESS ACTIVITIES
In the future we may 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. Our credit agreement as amended (“Amended Credit Agreement”) contains
financial and other covenants that may restrict our business activities or our ability to execute our strategic objectives, and our failure to comply with these
covenants could result in a default under it. Furthermore, additional equity financing may dilute the interests of our common stockholders, and debt financing, if
available, may involve restrictive covenants that could further restrict our business activities or our ability to execute our strategic objectives and could reduce our
profitability. If we raise or borrow funds on acceptable terms, we may not be able to grow our business or respond to competitive pressures.
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THE MARKET PRICE FOR OUR COMMON STOCK MAY FLUCTUATE SIGNIFICANTLY AND RAPIDLY
The market price of our common stock has fluctuated and could continue to fluctuate significantly as a result of factors such as: economic, geopolitical, global
public health (i.e., the Pandemic), political and stock market conditions generally and specifically as they may impact participants in the semiconductor and related
industries; and/or participants in oil and gas related industries; changes in financial estimates and recommendations by securities analysts who follow our stock;
earnings and other announcements, and changes in market evaluations, by securities analysts, investors, market participants or others, of or related to, us or
participants in the semiconductor and related industries; changes in business, trade or regulatory conditions affecting us or participants in the semiconductor and
related industries; announcements or implementation by us, our competitors, or our customers of technological innovations, new products or different business
strategies; changes in our capital deployment strategy, issuances of shares of our capital stock or entering into a business combination or other strategic transaction;
and trading volume of our common stock.
ANTI-TAKEOVER PROVISIONS UNDER OUR CERTIFICATE OF INCORPORATION AND BYLAWS MAY DISCOURAGE THIRD PARTIES
FROM MAKING AN UNSOLICITED BID FOR OUR COMPANY
Our certificate of incorporation and bylaws, and various provisions of the Delaware General Corporation Law may make it more difficult or expensive to
effect a change in control of our Company. For instance, our amended and restated certificate of incorporation provides for the division of our Board of Directors
into three classes as nearly equal in size as possible with staggered three-year terms.
We have adopted change in control arrangements covering our executive officers and other key employees. These arrangements provide for a cash severance
payment, continued medical benefits and other ancillary payments and benefits upon termination of service of a covered employee’s employment following a
change in control, which may make it more expensive to acquire our Company.
ITEM 1B. UNRESOLVED STAFF COMMENTS
None.
ITEM 2. PROPERTIES
Our global headquarters and research and development facilities are located in Aurora, Illinois. As of September 30, 2021, we operated 45 facilities globally,
of which 16 facilities are owned by the company and 29 are leased. The Company operates in 19 facilities located in the U.S. and 26 located outside the U.S. The
facilities outside the U.S. include locations in Taiwan, Japan, South Korea, Singapore, China, Canada, Mexico, Italy, France, and the United Kingdom.
We believe that our facilities are suitable and adequate for their intended purpose and provide us with sufficient capacity and capacity expansion opportunities
and technological capability to meet our current and expected demand in the foreseeable future. We intend to expand certain of our facilities to meet our anticipated
business needs.
ITEM 3. LEGAL PROCEEDINGS
We periodically become a party to legal proceedings, arbitrations, regulatory proceedings, inquiries and investigations (“contingencies”) arising in the ordinary
course of our business operations. The ultimate resolution of these contingencies is subject to significant uncertainty, and should we fail to prevail in any of them or
should several of them be resolved against us in the same reporting period, these matters could, individually or in the aggregate, be material to our Consolidated
Financial Statements. One of these contingencies, related to Star Lake Canal, which we assumed in connection with the acquisition of KMG, is discussed in Note
19 of “Notes to the Consolidated Financial Statements” included in Item 8 of Part II of this Annual Report on Form 10-K. The ultimate outcome of these matters,
however, cannot be determined at this time, nor can the amount of any potential loss be reasonably estimated, and as a result except where indicated no amounts
have been recorded in our Consolidated Financial Statements.
We also may face other governmental or third-party claims, or otherwise incur costs, relating to cleanup of, or for injuries resulting from, contamination at
sites associated with Star Lake Canal or other past and present operations. We accrue for environmental liabilities when a determination can be made that they are
probable and reasonably estimable. Other than as described herein, we are not involved in any legal proceedings that we believe could have a material impact on
our consolidated financial position, results of operations or cash flows. The information set forth in Item 1A “Risk Factors” and Note 19 of “Notes to the
Consolidated Financial Statements” included in Item 8 of Part II of this Annual Report on Form 10-K is incorporated by reference into this Item 3.
ITEM 4. MINE SAFETY DISCLOSURES
21

INDEX
Not applicable.
INFORMATION ABOUT OUR EXECUTIVE OFFICERS
Set forth below is information of our executive officers and their ages as of October 31, 2021.
Name
Age
Present Position
Fiscal Year Appointed to
Current Position
Other Positions Held Between Fiscal 2017-
2021
David H. Li
48
President and Chief Executive Officer
2015
Scott D. Beamer
50
Vice President and Chief Financial Officer
2018
Vice President and Chief Financial Officer, Stepan
Company, 2013-2018
H. Carol Bernstein
61
Vice President, Secretary and General Counsel
2000
Jeffrey M. Dysard
48
Vice President and President, Performance
Materials
2019
General Manager of CMP Slurries, 2018-2019;
General Manager of CMP Pads, 2016-2018
Colleen E. Mumford
45
Vice President, Communications and
Marketing
2020
Corporate Relations Director, 2018-2019; Human
Resources Director, 2015-2018
Eleanor K. Thorp
47
Vice President, Human Resources
2018
Head of Human Resources and Recruiting at
Sephora Digital SEA, 2015-2018
Daniel D. Woodland
51
Vice President and President, Electronic
Materials
2019
Vice President and Chief Marketing and
Operations Officer, 2017-2019; Vice President of
Marketing, 2015-2017
Jeanette A. Press
46
Corporate Controller and Principal Accounting
Officer
2020
Vice President and Principal Accounting Officer,
Univar Solutions, 2019-2020; Vice President and
Principal Accounting Officer, USG Corporation,
2014-2019
Fiscal years for other positions held include partial years if held for any portion of that fiscal year
1
1.
22

INDEX
PART II
ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY
SECURITIES
Our common stock is listed on the NASDAQ Global Select Market under the symbol “CCMP.” As of October 31, 2021, there were approximately 569 holders
of record of our common stock. In January 2016, we announced that our Board of Directors authorized the initiation of a regular dividend program under which the
Company intends to pay quarterly cash dividends on our common stock. The declaration and payment of future dividends is subject to the discretion and
determination of the Company’s Board of Directors and management, based on a variety of factors, and the program may be suspended, terminated or modified at
any time for any reason.
ISSUER PURCHASES OF EQUITY SECURITIES
Period
Total Number of Shares
Purchased 
(in thousands)
Average Price Paid Per
Share
Total Number of Shares
Purchased as Part of Publicly
Announced Plans or
Programs 
(in thousands)
Approximate Dollar Value
of Shares that May Yet Be
Purchased Under the
Plans or Programs 
(in thousands)
July 1 - 31, 2021
25 
$
144.12 
25 
$
141,208 
August 1 - 31, 2021
612 
125.13 
612 
64,558 
September 1 - 30, 2021
185 
133.19 
185 
39,975 
Total
822 
$
127.52 
822 
$
39,975 
In March 2021, our Board of Directors authorized an increase in the amount available under our share repurchase program from the previously remaining
$26.3 million to $150.0 million. Under this program, we repurchased 924 thousand shares for $120.0 million in fiscal 2021. As of September 30, 2021,
$40.0 million remained available under our share repurchase program. The manner in which the Company repurchases its shares is discussed in Part II, Item 7,
Management’s Discussion and Analysis of Financial Condition and Results of Operations, under the heading “Liquidity and Capital Resources,” of this Annual
Report on Form 10-K. To date, we have funded share purchases under our share repurchase program from our available cash balance, and anticipate we will
continue to do so.
Separate from this share repurchase program, a total of 37 thousand shares were withheld from equity award recipients to cover payroll taxes on the vesting of
shares of restricted stock or restricted stock units during fiscal 2021 pursuant to the terms of our CMC Materials, Inc. 2012 Omnibus Incentive Plan (“Prior Plan”)
and our CMC Materials, Inc. 2021 Omnibus Incentive Plan (“OIP”).
EQUITY COMPENSATION PLAN INFORMATION
See Part III, Item 12 of this Annual Report on Form 10-K for information regarding shares of common stock that may be issued under the Company’s existing
equity compensation plans.
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STOCK PERFORMANCE GRAPH
The following graph illustrates the cumulative total stockholder return on our common stock during the period from September 30, 2016 through September
30, 2021 and compares it with the cumulative total return on the NASDAQ Composite Index and the Philadelphia Semiconductor Index (PHLX). The comparison
assumes $100 was invested on September 30, 2016 in our common stock and in each of the foregoing indices and assumes reinvestment of the quarterly cash
dividends declared in each fiscal year from 2017 to 2021. The performance shown is not necessarily indicative of future performance. Refer to Part 1, Item 1A
“Risk Factors” in this Annual Report on Form 10-K.
9/16
12/16
3/17
6/17
9/17
12/17
3/18
6/18
9/18
12/18
3/19
CMC Materials, Inc.
$
100.00 
$
119.73 
$
145.60 
$
140.70 
$
152.73 
$
180.14 
$
205.83 
$
207.45 
$
198.98 
$
185.48 
$
218.61 
NASDAQ Composite
100.00 
101.66 
111.95 
116.61 
123.68 
131.78 
135.19 
144.13 
154.82 
128.04 
149.56 
PHLX Semiconductor
100.00 
108.92 
121.99 
125.49 
142.61 
153.08 
162.95 
162.02 
169.26 
143.83 
174.54 
6/19
9/19
12/19
3/20
6/20
9/20
12/20
3/21
6/21
9/21
CMC Materials, Inc.
$
215.78 
$
276.80 
$
284.62 
$
226.19 
$
277.41 
$
283.91 
$
302.59 
$
354.52 
$
303.21 
$
247.88 
NASDAQ Composite
155.35 
155.63 
175.03 
150.60 
197.21 
219.37 
253.64 
261.14 
286.40 
285.75 
PHLX Semiconductor
183.58 
197.01 
234.81 
192.66 
255.79 
288.62 
360.82 
404.53 
434.39 
424.30 
24

INDEX
ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
The following “Management’s Discussion and Analysis of Financial Condition and Results of Operations” (MD&A) should be read in conjunction with our
historical financial statements and “Notes to the Consolidated Financial Statements,” which are included in Item 8 of Part II of this Annual Report on Form 10-K.
For management’s discussion and analysis of our results of operations for fiscal 2020 as compared to fiscal 2019 please refer to Part II, Item 7 “Management’s
Discussion and Analysis of Financial Condition and Results of Operations” on Form 10-K for our fiscal year ended September 30, 2020, filed with the SEC on
November 17, 2020, which is incorporated herein by reference.
OVERVIEW
CMC is a leading global supplier of consumable materials, primarily to semiconductor manufacturers. The Company’s electronic materials products play a
critical role in the production of advanced semiconductor devices, helping to enable the manufacture of smaller, faster and more complex devices by its customers.
The Company also provides performance materials to pipeline companies, and its PIM products and services provide solutions for optimizing pipeline throughput
and maximizing performance and safety.
While the Pandemic continues to cause global macroeconomic uncertainty worldwide and in the countries and locations in which we and our customers and
suppliers operate, our business in our fiscal 2021 showed continued resiliency overall. In our Electronic Materials business segment, which represents
approximately 80% of our revenue, we experienced growth from each of our businesses over the prior fiscal year. We continue to experience solid demand from
our semiconductor customers, as certain sectors such as cloud, PCs and servers continue to show strength, driven by the ongoing economic recovery from the
Pandemic, particularly in the industrial and automotive sectors. In addition, our Performance Materials business segment showed improved demand in our wood
treatment and QED businesses over the prior year. Our PIM business continues to be negatively impacted by the Pandemic. Throughout the Pandemic, our primary
focus has been and continues to be on the health and well-being of our employees and the ongoing operation of our facilities worldwide according to our business
continuity plans, which we refine on an ongoing basis.
To date, we have not seen a meaningful impact from the Pandemic on our ability to manufacture and deliver products to our customers, but we have
experienced a rise in certain raw material costs and broad constraints in the global supply chain, including in logistics, and adversely impacting freight and logistics
costs. Although improving, the Pandemic has negatively impacted some of the industries we serve, primarily the pipeline industry, and as a result we took an
impairment charge in our PIM business unit in our second fiscal quarter of fiscal 2021. Depending on industry recovery, we expect to drive growth in our PIM
business.
The extent to which the Pandemic may further impact our business, operations, results of operations and financial condition going forward is uncertain and
difficult to estimate, and depends on numerous evolving and potentially unknown factors.
Recent Developments and Items Impacting Comparability
The Company completed the ITS Acquisition on the ITS Acquisition Date and the Consolidated Financial Statements included in this Annual Report on Form
10-K include the financial results of ITS since that date. For additional information, refer to Part 1, Item 1 “Business” in this Annual Report on Form 10-K.
In the fourth quarter of fiscal 2019, we made a decision to exit the wood treatment business and focus our strategy and future capital investments on our other
businesses. Our Matamoros, Mexico facility will continue to produce an intermediate product until it ceases operations by the end of December 2021. Our
Tuscaloosa, Alabama plant will continue to process and sell to customers this intermediate product, into approximately the second quarter of fiscal year 2022.
25

INDEX
RESULTS OF OPERATIONS
The following table sets forth the changes in balances on the Consolidated Statement of (Loss) Income along with the percentage of revenue of certain line
items included in our historical statements of income for the periods indicated:
Year Ended September 30,
(In thousands)
2021
2020
$ Change
% Change
Revenue
$
1,199,831 
100.0 % $
1,116,270 
100.0 % $
83,561 
7.5 %
Cost of sales
701,662 
58.5 %
627,669 
56.2 %
73,993 
11.8 %
Gross profit
498,169 
41.5 %
488,601 
43.8 %
9,568 
2.0 %
Research, development and technical
54,195 
4.5 %
52,311 
4.7 %
1,884 
3.6 %
Selling, general and administrative
228,886 
19.1 %
217,071 
19.4 %
11,815 
5.4 %
Impairment charges
230,392 
19.2 %
2,314 
0.2 %
228,078 
9856.4 %
Total operating expenses
513,473 
42.8 %
271,696 
24.3 %
241,777 
89.0 %
Operating (loss) income
(15,304)
(1.3)%
216,905 
19.4 %
(232,209)
(107.1)%
Interest expense, net
38,360 
3.2 %
41,840 
3.7 %
(3,480)
(8.3)%
Other expense, net
(1,130)
(0.1)%
(1,718)
(0.2)%
588 
34.2 %
(Loss) income before income taxes
(54,794)
(4.6)%
173,347 
15.5 %
(228,141)
(131.6)%
Provision for income taxes
13,783 
1.1 %
30,519 
2.7 %
(16,736)
(54.8)%
Net (loss) income
$
(68,577)
(5.7)% $
142,828 
12.8 % $
(211,405)
(148.0)%
Most of CMC’s foreign operations maintain their accounting records in their local currencies. As a result, period to period comparability of results of
operations is affected by fluctuations in exchange rates. The impact on comparability is not material in any given period.
YEAR ENDED SEPTEMBER 30, 2021, AS COMPARED TO YEAR ENDED SEPTEMBER 30, 2020
REVENUE
The increase in Revenue was primarily due to the increased demand for our products, selected price increases for our electronic chemicals and wood treatment
products, and the ITS Acquisition, which closed on the ITS Acquisition Date. This was partially offset by lower demand for PIM products due to the ongoing
effects of the Pandemic and related factors.
COST OF SALES
The increase in Cost of sales was primarily due to the increases in revenue, inflationary raw materials costs, and higher freight and manufacturing fixed costs.
GROSS MARGIN
The decrease in gross margin percentage was primarily due to inflationary raw material costs, and higher freight and manufacturing fixed costs.
SELLING, GENERAL AND ADMINISTRATIVE
The increase in Selling, general and administrative expenses was primarily due to a $5.2 million increase in professional fees, a $3.0 million increase in
staffing related expenses, a $2.5 million environmental accrual related to the anticipated remedial action phase of the Star Lake Canal Superfund Site (“Star Lake”),
and a $1.2 million increase in IT expenses. This was partially offset by a $2.1 million decrease in travel expenses. See Note 19 of “Notes to the Consolidated
Financial Statements” included in Item 8 of Part II of this Annual Report on Form 10-K for more information regarding the Star Lake environmental accrual.
IMPAIRMENT CHARGES
The increase in Impairment charges was due to impairment of goodwill in the PIM reporting unit, as well as impairment of the long-lived assets, intangible
assets, and goodwill in the wood treatment business. See Notes 9 and 10 of “Notes to the Consolidated Financial Statements” included in Item 8 of Part II of this
Annual Report on Form 10-K.
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INDEX
INTEREST EXPENSE, NET
The decrease in Interest expense, net was primarily due to a decline in the LIBOR rate for the unhedged portion of the Company’s Senior Secured Term Loan
Facility (“Term Loan Facility”) and a lower outstanding term loan balance due to repayments.
PROVISION FOR INCOME TAXES
The income tax expense during fiscal 2021 in relation to the loss before income taxes was primarily attributable to the unfavorable impact of the goodwill
impairment charges related to the PIM and wood treatment reporting units, partially offset by a tax benefit related to share-based compensation and foreign derived
intangible income.
SEGMENT ANALYSIS
The segment data should be read in conjunction with our Consolidated Financial Statements and related notes included in Part II, Item 8 of this Annual Report
on Form 10-K.
Year Ended September 30,
(In thousands)
2021
2020
$ Change
% Change
Segment Revenue:
Electronic Materials
$
984,712 
$
882,824 
$
101,888 
11.5 %
Performance Materials
215,119 
233,446 
(18,327)
(7.9)%
Total Revenues
$
1,199,831 
$
1,116,270 
$
83,561 
7.5 %
Adjusted EBITDA:
Electronic Materials
$
323,827 
$
299,037 
$
24,790 
8.3 %
Performance Materials
87,961 
106,797 
(18,836)
(17.6)%
Unallocated corporate expenses
(53,475)
(48,033)
(5,442)
(11.3)%
Consolidated Adjusted EBITDA
$
358,313 
$
357,801 
$
512 
0.1 %
Adjusted EBITDA Margin:
Electronic Materials
32.9 %
33.9 %
-100 bpts
Performance Materials
40.9 %
45.7 %
-480 bpts
ELECTRONIC MATERIALS
The increase in revenue was driven by growth across all businesses, including selected price increases for our electronic chemicals products, and the ITS
Acquisition, which closed on the ITS Acquisition Date. The increase in adjusted EBITDA was driven primarily driven by the revenue increases, partially offset by
higher fixed costs. The 100 basis points decrease in adjusted EBITDA margin was primarily driven by inflationary raw material costs, higher freight and fixed
costs, and higher expenses to support current operations and future growth opportunities.
PERFORMANCE MATERIALS
The decrease in revenue and adjusted EBITDA was driven by lower demand for PIM products due to the ongoing effects of the Pandemic and related factors,
partially offset by higher selling prices for wood treatment products and increased demand for QED products. The 480 basis points decrease in adjusted EBITDA
margin was primarily driven by inflationary raw material costs and higher costs in PIM related to underutilization of the previously completed plant expansion,
partially offset by higher selling prices for wood treatment products.
USE OF CERTAIN GAAP AND NON-GAAP FINANCIAL INFORMATION
Certain financial measures contained in this Annual Report on Form 10-K adjust for the impact of specified items and are not calculated in accordance with
accounting principles generally accepted in the United States of America (“U.S. GAAP” or “GAAP”). We provide certain non-GAAP financial measures, such as
adjusted EBITDA and adjusted EBITDA margin, in addition to reported GAAP results because we believe that analysis of our financial performance is enhanced
by an understanding of these non-GAAP financial measures. We exclude certain items from earnings when presenting adjusted EBITDA because we believe they
will be incurred infrequently and/or are otherwise not indicative of the Company’s regular, ongoing operating performance. Accordingly, we believe that they aid
in evaluating the underlying operational performance of our business, and facilitate comparisons between periods. In addition, adjusted EBITDA is used as one of
the performance goals of our fiscal 2021
27

INDEX
Short-Term Incentive Program. A similar adjusted EBITDA calculation is also used by our lenders for a key debt compliance ratio.
Adjusted EBITDA margin is defined as adjusted EBITDA as a percentage of revenue. Adjusted EBITDA is defined as earnings before interest, income taxes,
depreciation and amortization, adjusted for certain items that affect comparability from period to period. These adjustments include items related to acquisitions,
such as acquisition and integration related expenses, impairment charges, costs of restructuring and related adjustments related to the wood treatment business, a
charge for the Star Lake environmental accrual, costs related to the KMG-Bernuth warehouse fire net of insurance recovery, costs related to the Pandemic net of
grants received, and impact of fair value adjustments to inventory acquired in the KMG Acquisition.
The non-GAAP financial measures provided are a supplement to, and not a substitute for, the Company’s financial results presented in accordance with U.S.
GAAP. Management strongly encourages investors to review the Company’s Consolidated Financial Statements in their entirety and to not rely on any single
financial measure. A reconciliation table of GAAP to non-GAAP financial measures is below.
Adjusted EBITDA for the Electronic Materials and Performance Materials segments is presented in conformity with Accounting Standards Codification Topic
280, Segment Reporting. This measure is reported to the chief operating decision maker for purposes of making decisions about allocating resources to the
segments and assessing their performance. For these reasons, this measure is excluded from the definition of non-GAAP financial measures under SEC Regulation
G and Item 10(e) of Regulation S-K.
RECONCILIATION OF NET (LOSS) INCOME TO ADJUSTED EBITDA
Year Ended September 30,
(In thousands)
2021
2020
2019
Net (loss) income
$
(68,577) $
142,828 $
39,215 
Interest expense, net
38,360 
41,840 
43,335 
Income taxes
13,783 
30,519 
23,891 
Depreciation and amortization
132,170 
127,737 
98,592 
EBITDA
115,736 
342,924 
205,033 
Acquisition and integration related expense
10,115 
10,852 
34,709 
Impairment charges
230,392 
2,314 
67,372 
Environmental accrual
2,508 
— 
— 
Cost related to KMG-Bernuth warehouse fire, net of insurance recovery
(1,050)
1,083 
9,905 
Costs related to the Pandemic, net of grants received
489 
849 
— 
Charge for fair value write-up of acquired inventory sold
— 
— 
14,869 
Net costs related to restructuring of the wood treatment business
123 
(221)
1,530 
Adjusted EBITDA
$
358,313 $
357,801 $
333,418 
Year Ended September 30,
(In thousands)
2021
2020
2019
Adjusted EBITDA:
Electronic Materials
$
323,827 $
299,037 $
294,902 
Performance Materials
87,961 
106,797 
91,372 
Unallocated Corporate Expenses
(53,475)
(48,033)
(52,856)
Consolidated Adjusted EBITDA
$
358,313 $
357,801 $
333,418 
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INDEX
LIQUIDITY AND CAPITAL RESOURCES
As of September 30, 2021, we had $186.0 million of cash and cash equivalents compared with $257.4 million as of September 30, 2020. On September 30,
2021, $132.9 million of cash and cash equivalents was held in foreign subsidiaries. Our total liquidity as of September 30, 2021 was $536.0 million compared to
$457.4 million as of September 30, 2020 (including $350.0 million and $200.0 million of borrowing availability under our revolving credit facility (“Revolving
Credit Facility”) as of September 30, 2021 and 2020, respectively, which includes our letter of credit sub-facility). The increase in liquidity reflects the increase in
available credit under our Revolving Credit Facility, as well as cash flow provided by operating activities, partially offset by the cash used for the ITS Acquisition,
capital expenditures, repurchases of our common stock and payments of quarterly cash dividends.
Total debt, consisting of principal outstanding on our Term Loan Facility, amounted to $916.3 million ($928.4 million in aggregate principal amount less
$12.0 million of debt issuance costs) as of September 30, 2021 and $921.4 million ($936.4 million in aggregate principal amount less $14.9 million of debt
issuance costs) as of September 30, 2020. There were no borrowings under our Revolving Credit Facility in fiscal 2021 and no balance was outstanding as of
September 30, 2021.
The Revolving Credit Facility requires that the Company maintain a maximum first lien secured net leverage ratio, as defined in the Amended Credit
Agreement, of 4.00 to 1.00 as of the last day of each fiscal quarter. As of September 30, 2021, our maximum first lien secured net leverage ratio was 1.87 to 1.00.
Additionally, the Amended Credit Agreement contains certain affirmative and negative covenants that limit the ability of the Company, among other things and
subject to certain significant exceptions, to incur debt or liens, make investments, enter into certain mergers, consolidations, asset sales and acquisitions, pay
dividends and make other restricted payments and enter into transactions with affiliates. We believe we are in compliance with these covenants as of September 30,
2021 and we expect to remain in compliance with our debt covenants in the future.
In March 2021, our Board of Directors authorized an increase in the amount available under our share repurchase program from the previously remaining
$26.3 million to $150.0 million. In fiscal 2021, we repurchased 924 thousand shares under this program, and $40.0 million remained available at the end of the
year. The timing, manner, price and amounts of repurchases are determined at the Company’s discretion, and the share repurchase program may be suspended,
terminated or modified at any time for any reason. The repurchase program does not obligate the Company to acquire any specific number of shares. To date, we
have funded share purchases under our share repurchase program from our available cash on hand, and anticipate we will continue to do so.
Our Board of Directors authorized the initiation of our regular quarterly cash dividend program in January 2016, and since that time has increased the dividend
to its current level of $0.46 per share. The declaration and payment of future dividends is subject to the discretion and determination of the Board of Directors and
management, based on a variety of factors, and the program may be suspended, terminated or modified at any time for any reason.
We believe that cash on hand, cash available from future operations, and available borrowing capacity under our Amended Credit Agreement will be sufficient
to fund our operations, expected capital expenditures, dividend payments, and share repurchases for at least the next twelve months. However, ongoing Pandemic-
created uncertainty in worldwide economic conditions and in those of the industries in which we participate remains, and we may need to raise additional funds in
the future through equity or debt financing, or other arrangements, in pursuit of corporate development or other initiatives. Depending on future conditions in the
capital and credit markets, we could encounter difficulty securing additional financing in the type or amount necessary to pursue these objectives.
OPERATING ACTIVITIES
We generated $270.6 million in cash flows from operating activities in fiscal 2021, compared to $287.3 million in fiscal 2020. The decrease was driven by
$21.9 million of changes in operating assets and liabilities, partially offset by a $5.2 million increase of Net (loss) income adjusted for non-cash reconciling items.
INVESTING ACTIVITIES
In fiscal 2021, net cash used in investing activities was $166.4 million, compared to $124.3 million in fiscal 2020. The increase was driven by the $126.9
million net cash used for the ITS Acquisition, partially offset by a decrease in capital expenditures of $83.7 million, which was driven by the plant expansion in
fiscal 2020 in our Performance Materials segment.
FINANCING ACTIVITIES
In fiscal 2021, net cash used in financing activities was $175.3 million, compared to $97.7 million in fiscal 2020. The increase was driven by a $85.0 million
increase in repurchases of common stock under the Share Repurchase Program, partially offset by a $15.3 million decrease in repayment of long-term debt.
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INDEX
CONTRACTUAL OBLIGATIONS
The following summarizes our significant contractual obligations at September 30, 2021, and the effect such obligations are expected to have on our liquidity
and cash flow in future periods.
(In thousands)
Total
Current
Long-Term
Debt (Note 13)
$
928,375 $
13,313 $
915,062 
Interest expense and fees
112,786 
21,260 
91,526 
Purchase obligations (material supply agreements)
84,968 
81,295 
3,673 
Future lease payments (Note 14)
32,681 
8,031 
24,650 
Total contractual obligations
$
1,158,810 $
123,899 $
1,034,911 
CRITICAL ACCOUNTING POLICIES AND ESTIMATES
The Company’s accounting policies are more fully described in Note 2 of “Notes to the Consolidated Financial Statements” included in Part II, Item 8 of this
Annual Report on Form 10-K of the Consolidated Financial Statements. As disclosed in Note 2, the preparation of these financial statements requires us to make
estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingencies. Actual results may
differ from these estimates under different assumptions or conditions. The Company believes that the following discussion addresses the Company’s most critical
accounting policies, which are those that are most important to the portrayal of the Company’s financial condition and results of operations and require
management’s most difficult, subjective and complex judgments.
GOODWILL AND OTHER INTANGIBLE ASSETS
We perform an annual impairment assessment of goodwill and other intangible assets at the reporting unit level as of July 1, or more frequently if
circumstances indicate that the carrying value may not be recoverable. Historically, we have annually tested goodwill and indefinite-lived intangible assets for
impairment as of September 30. This year, we voluntarily changed the annual impairment testing date from September 30 to July 1. We believe this measurement
date, which represents a change in the method of applying an accounting principle, is preferable because it better aligns with the timing of the Company’s financial
planning process, which is a key component of the annual impairment tests. The change in the measurement date did not delay, accelerate or prevent an impairment
charge. Each quarter, the Company evaluates impairment indicators to determine whether there is a triggering event warranting a goodwill and intangible asset
impairment analysis. As such, the change in the annual test date was applied prospectively effective July 1, 2021.
In our qualitative assessment, we determine whether it is more likely than not that an impairment exists based on qualitative factors. Qualitative factors include
macroeconomic, industry and market considerations, overall financial performance, industry, legal and other relevant events and factors affecting the reporting
unit. Additionally, as part of this assessment, we may perform a quantitative analysis to support the qualitative factors above by applying sensitivities to
assumptions and inputs used in measuring a reporting unit’s fair value. If the qualitative assessment indicates that it is more likely than not that an impairment
exists, then a quantitative assessment is performed.
In our quantitative assessment, estimated fair value is determined using an average of a discounted cash flow model and a market approach based on earnings
before interest, taxes, and depreciation for a group of guideline comparable companies. The wood treatment reporting unit fair value is determined using the
discounted cash flow model only. Factors requiring significant judgment include the selection of market comparable companies, projected future revenue and gross
margin, discount rates, and terminal growth rates. The use of different assumptions, estimates or judgments could significantly impact the estimated fair value of a
reporting unit, and therefore, impact the excess fair value above carrying value of the reporting unit. The reporting unit’s carrying value used in an impairment test
represents the assignment of various assets and liabilities, excluding certain corporate assets and liabilities, such as cash, investments, and debt. We test the
reasonableness of the inputs and outcomes of our discounted cash flow models against available market data. Two of the Company’s reporting units, wood
treatment and PIM, are at risk of failing future impairment tests, as the estimates of fair value do not substantially exceed their carrying values. The fair values for
all other reporting units substantially exceeded their carrying value.
As previously announced, the Company is exiting the wood treatment business by approximately the end of the second quarter of fiscal 2022. As the Company
approaches the closure date of the facilities and there are lower estimated future cash flows, the carrying value of the wood treatment reporting unit will not be
recoverable, resulting in future impairments of goodwill. As of September 30, 2021, wood treatment’s carrying value includes $9.4 million of goodwill. There is no
excess fair value over the carrying value as of September 30, 2021.
30

INDEX
During the second quarter of fiscal 2021, the Company recorded a goodwill impairment charge of $201.6 million related to the PIM reporting unit. As of the
July 1, 2021 annual assessment date, the estimated fair value of the PIM reporting unit exceeded the carrying value by approximately 5%. Key assumptions in the
assessment include projected future revenue and gross margin, a 10.5% discount rate, and a terminal growth rate of 3%. A 50 basis point change in the projected
compound annual revenue growth rate, gross margins, discount rate, or terminal growth assumption would not result in an impairment. As of September 30, 2021,
PIM’s carrying value includes $118.2 million of goodwill and $46.0 million of indefinite-lived trade-name intangible assets.
The Flowchem LLC (“Flowchem”) trade name, an indefinite-lived intangible asset that is part of the PIM reporting unit, was assessed for impairment using a
relief from royalty approach. Factors requiring significant judgment include projected revenue, royalty rates, terminal growth rates, and discount rates.
Significant management judgment is required to estimate projected future revenue and gross margins. All assumptions used in our impairment valuation for
indefinite-lived intangible assets and goodwill are based on best available information and are consistent with internal forecasts and operating plans.
See Note 9 of “Notes to the Consolidated Financial Statements” included in Item 8 of Part II of this Annual Report on Form 10-K for more information
regarding goodwill and intangible assets.
ACCOUNTING FOR INCOME TAXES
We are subject to income taxes in the U.S. and numerous foreign jurisdictions. Accordingly, the determination of our provision for income taxes requires
judgment, the use of estimates in certain cases and the interpretation and application of complex tax laws. Our effective income tax rate is affected by many factors,
including changes in our assessment of certain tax contingencies, increases and decreases in valuation allowances, changes in tax law, outcomes of audits, and the
mix of earnings among our U.S. and international operations.
We assess whether or not our deferred tax assets will ultimately be realized, and record an estimated valuation allowance on those deferred tax assets that may
not be realized. Many factors are considered when assessing whether it is more likely than not that the deferred tax assets will be realized, including recent
cumulative earnings, expectations of future taxable income, carryforward periods and other relevant quantitative and qualitative factors. The recoverability of the
deferred tax assets is evaluated by assessing the adequacy of future expected taxable income from all sources, including reversal of taxable temporary differences,
forecasted operating earnings and available tax planning strategies. This evaluation is based on best available information and are consistent with internal forecasts
and operating plans.
We recognize the tax benefit of an uncertain tax position only if it is more likely than not that the tax position will be sustained by the taxing authorities, based
on the technical merits of the position. When facts and circumstances change, we reassess these probabilities and record any changes in the financial statements as
appropriate. This determination requires the use of judgment in evaluating our tax positions and assessing the timing and amounts of deductible and taxable items.
See Note 18 of “Notes to the Consolidated Financial Statements” included in Part II, Item 8 of this Annual Report on Form 10-K for additional information on
income taxes.
EFFECTS OF RECENT ACCOUNTING PRONOUNCEMENTS
See Note 2 of “Notes to the Consolidated Financial Statements” included in Part II, Item 8 of this Annual Report on Form 10-K for a description of recent
accounting pronouncements.
ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
EFFECT OF CURRENCY EXCHANGE RATES AND EXCHANGE RATE RISK MANAGEMENT
We conduct business operations outside of the U.S. through our foreign operations. Most of our foreign operations maintain their accounting records in their
local currencies. Consequently, period to period comparability of results of operations is affected by fluctuations in exchange rates. The primary currencies to
which we have exposure are the Korean won, Japanese yen, the New Taiwan dollar, Euro, British pound, and Singapore dollar. Approximately 23% of our revenue
is transacted in currencies other than the U.S. dollar. However, outside of the U.S., we also incur expenses that are transacted in currencies other than the U.S.
dollar, which mitigates the exposure on the Consolidated Statements of (Loss) Income. We periodically enter into forward contracts in an effort to manage foreign
currency exchange exposure on our Consolidated Balance Sheets. However, we are unlikely to be able to hedge these exposures completely. We do not enter into
forward contracts or other derivative instruments for speculative or trading purposes.
We recorded $2.5 million in currency translation gains, $19.3 million in currency translation gains, and $8.5 million in currency translation losses, net of tax,
during fiscal 2021, 2020 and 2019, respectively, which were included in other comprehensive income (loss).
31

INDEX
MARKET RISK AND SENSITIVITY ANALYSIS RELATED TO FOREIGN EXCHANGE RATE RISK
We have performed a sensitivity analysis assuming a hypothetical 10% additional adverse movement in foreign exchange rates. As of September 30, 2021, the
analysis demonstrated that such market movements would not have a material adverse effect on our consolidated financial position, results of operations or cash
flows over a one-year period. Actual gains and losses in the future may differ materially from this analysis based on changes in the timing and amount of foreign
currency rate movements and our actual exposures.
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INDEX
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
INDEX TO CONSOLIDATED FINANCIAL STATEMENTS AND FINANCIAL STATEMENT SCHEDULE 
Page
Consolidated Financial Statements:
Report of Independent Registered Public Accounting Firm
34
Consolidated Statements of (Loss) Income for the years ended September 30, 2021, 2020 and 2019
36
Consolidated Statements of Comprehensive (Loss) Income for the years ended September 30, 2021, 2020 and 2019
37
Consolidated Balance Sheets at September 30, 2021 and 2020
38
Consolidated Statements of Cash Flows for the years ended September 30, 2021, 2020 and 2019
39
Consolidated Statements of Changes in Stockholders’ Equity for the years ended September 30, 2021, 2020 and 2019
41
Notes to the Consolidated Financial Statements
42
Financial Statement Schedule:
Schedule II – Valuation and Qualifying Accounts for the years ended September 30, 2021, 2020 and 2019
68
Management Responsibility
69
All other schedules are omitted, because they are not required, are not applicable, or the information is included in the Consolidated Financial Statements and
notes thereto.
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INDEX
Report of Independent Registered Public Accounting Firm
To the Board of Directors and Stockholders of CMC Materials, Inc.
Opinions on the Financial Statements and Internal Control over Financial Reporting
We have audited the accompanying consolidated balance sheets of CMC Materials, Inc. and its subsidiaries (the “Company”) as of September 30, 2021 and 2020,
and the related consolidated statements of (loss) income, of comprehensive (loss) income, of changes in stockholders’ equity and of cash flows for each of the three
years in the period ended September 30, 2021, including the related notes and financial statement schedule listed in the index appearing under Item 15(a)(2)
(collectively referred to as the “consolidated financial statements”). We also have audited the Company's internal control over financial reporting as of September
30, 2021, 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 consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of September
30, 2021 and 2020, and the results of its operations and its cash flows for each of the three years in the period ended September 30, 2021 in conformity with
accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal
control over financial reporting as of September 30, 2021, based on criteria established in Internal Control - Integrated Framework (2013) issued by the COSO.
Change in Accounting Principle
As discussed in Note 2 to the consolidated financial statements, the Company changed the manner in which it accounts for leases as of October 1, 2019.
Basis for Opinions
The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for
its assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control Over Financial Reporting
appearing under Item 9A. Our responsibility is to express opinions on the Company’s consolidated financial statements and on the Company's internal control over
financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States)
(PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and
regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable
assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal
control over financial reporting was maintained in all material respects.
Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated 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 consolidated 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 consolidated financial statements. Our audit of internal control over financial
reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and
evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we
considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.
As described in Management’s Report on Internal Control over Financial Reporting, management has excluded International Test Solutions, Inc. (“ITS”) from its
assessment of internal control over financial reporting as of September 30, 2021, because it was acquired by the Company in a business combination during fiscal
2021. We have also excluded ITS from our audit of internal control over financial reporting. As of September 30, 2021 and for the period from the ITS Acquisition
Date through September 30, 2021, total assets and total revenue of ITS represented less than 1% of the Company’s consolidated total assets and total revenues.
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 (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions
and dispositions of
34

INDEX
the assets of the company; (ii) 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 (iii) 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.
Critical Audit Matters
The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or
required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii)
involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the
consolidated 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.
Goodwill Impairment Assessment - Pipeline and Industrial Materials (“PIM”) and CMP Pads Reporting Units
As described in Notes 2 and 9 to the consolidated financial statements, the Company’s consolidated goodwill balance was $576.9 million at September 30, 2021,
which included the PIM and CMP Pads reporting units. Goodwill is tested for impairment annually on July 1, or between annual tests if an event occurs or
circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. The goodwill impairment assessment is
performed comparing the estimated fair value of the reporting units to their carrying amounts. Estimated fair values are determined using the average of a
discounted cash flow model and a market approach based on earnings before interest, taxes, and depreciation for a group of guideline comparable companies.
Factors requiring significant judgment include the selection of valuation approach and assumptions related to future revenue and gross margin, discount rates, and
terminal growth rates.
The principal considerations for our determination that performing procedures relating to the goodwill impairment assessment of the PIM and CMP Pads reporting
units is a critical audit matter are (i) the significant judgment by management when determining the fair value of the reporting units using the discounted cash flow
models; (ii) the high degree of auditor judgment, subjectivity, and effort in performing procedures and evaluating the significant assumptions used in
management’s fair value estimate related to future revenue, gross margin, terminal growth rate and the discount rate for the PIM reporting unit, and future revenue
and gross margin for the CMP Pads reporting unit; and (iii) the audit effort involved the use of professionals with specialized skill and knowledge.
Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial
statements. These procedures included testing the effectiveness of controls relating to management’s goodwill impairment assessment, including controls over the
valuation of the Company’s PIM and CMP Pads reporting units. These procedures also included, among others, testing management’s process for determining the
fair value estimate of the PIM and CMP Pads reporting units; evaluating the appropriateness of using the average of a discounted cash flow model and a market
approach based upon relevant market multiples; testing the completeness and accuracy of underlying data used in the discounted cash flow models; and evaluating
the significant assumptions used by management related to future revenue, gross margin, terminal growth rate and the discount rate for the PIM reporting unit, and
future revenue and gross margin for the CMP Pads reporting unit. Evaluating management’s assumptions related to future revenue, gross margin, and terminal
growth rate involved evaluating whether the assumptions used were reasonable considering (i) the current and past performance of the reporting units, (ii) the
consistency with external market and industry data, and (iii) whether these assumptions were consistent with evidence obtained in other areas of the audit.
Professionals with specialized skill and knowledge were used to assist in the evaluation of the appropriateness of the discounted cash flow models and market
approach and the reasonableness of the PIM discount rate assumption.
/s/ PricewaterhouseCoopers LLP
Chicago, Illinois
November 12, 2021
We have served as the Company’s auditor since 1999.
35

INDEX
CMC MATERIALS, INC.
CONSOLIDATED STATEMENTS OF (LOSS) INCOME
(In thousands, except per share amounts) 
Year Ended September 30,
2021
2020
2019
Revenue
$
1,199,831 $
1,116,270 $
1,037,696 
Cost of sales
701,662 
627,669 
595,043 
Gross profit
498,169 
488,601 
442,653 
Operating expenses:
Research, development and technical
54,195 
52,311 
51,707 
Selling, general and administrative
228,886 
217,071 
213,078 
Impairment charges
230,392 
2,314 
67,372 
Total operating expenses
513,473 
271,696 
332,157 
Operating (loss) income
(15,304)
216,905 
110,496 
Interest expense, net
38,360 
41,840 
43,335 
Other expense, net
(1,130)
(1,718)
(4,055)
(Loss) income before income taxes
(54,794)
173,347 
63,106 
Provision for income taxes
13,783 
30,519 
23,891 
Net (loss) income
$
(68,577) $
142,828 $
39,215 
Basic (loss) earnings per share
$
(2.35) $
4.90 $
1.37 
Diluted (loss) earnings per share
$
(2.35) $
4.83 $
1.35 
Weighted average basic shares outstanding
29,126 
29,136 
28,571 
Weighted average diluted shares outstanding
29,126 
29,580 
29,094 
The accompanying notes are an integral part of these Consolidated Financial Statements.
36

INDEX
CMC MATERIALS, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME
(In thousands) 
Year Ended September 30,
2021
2020
2019
Net (loss) income
$
(68,577) $
142,828 $
39,215 
Other comprehensive income (loss):
Foreign currency translation adjustment
2,377 
19,642 
(7,957)
Income tax benefit (expense)
140 
(356)
(591)
Total foreign currency translation adjustment, net of tax
2,517 
19,286 
(8,548)
Unrealized gain (loss) on cash flow hedges:
Change in fair value
7,184 
(23,161)
(23,667)
Reclassification adjustment into earnings
14,122 
9,360 
(524)
Income tax (expense) benefit
(4,765)
3,090 
5,411 
Total unrealized gain (loss) on cash flow hedges, net of tax
16,541 
(10,711)
(18,780)
Pension and other postretirement
(211)
891 
(479)
Income tax expense
48 
156 
30 
Total pension and other postretirement, net of tax
(163)
1,047 
(449)
Other comprehensive income (loss), net of tax
18,895 
9,622 
(27,777)
Comprehensive (loss) income
$
(49,682) $
152,450 $
11,438 
The accompanying notes are an integral part of these Consolidated Financial Statements.
37

INDEX
CMC MATERIALS, INC.
CONSOLIDATED BALANCE SHEETS
(In thousands, except per share amounts) 
September 30,
2021
2020
ASSETS
Current assets:
Cash and cash equivalents
$
185,979 $
257,354 
Accounts receivable, less allowance for credit losses of $527 at September 30, 2021, and $583 at September 30, 2020
150,099 
134,023 
Inventories
173,464 
159,134 
Prepaid expenses and other current assets
25,439 
26,558 
Total current assets
534,981 
577,069 
Property, plant and equipment, net
354,771 
362,067 
Goodwill
576,902 
718,647 
Other intangible assets, net
625,434 
670,964 
Deferred income taxes
6,813 
7,713 
Other long-term assets
51,984 
40,007 
Total assets
$
2,150,885 $
2,376,467 
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable
$
52,748 $
49,254 
Current portion of long-term debt
13,313 
10,650 
Accrued expenses and other current liabilities
139,797 
121,442 
Total current liabilities
205,858 
181,346 
Long-term debt, net of current portion
903,031 
910,764 
Deferred income taxes
74,930 
112,212 
Other long-term liabilities
88,129 
97,832 
Total liabilities
1,271,948 
1,302,154 
Commitments and contingencies (Note 19)
Stockholders’ equity:
Common Stock Authorized: 200,000 shares, $0.001 par value; Issued: 40,221 shares at September 30, 2021 and
39,914 shares at September 30, 2020
40 
40 
Capital in excess of par value of common stock
1,052,869 
1,019,803 
Retained earnings
431,968 
553,718 
Accumulated other comprehensive income (loss)
4,791 
(14,104)
Treasury stock at cost, 11,795 shares at September 30, 2021 and 10,834 shares at September 30, 2020
(610,731)
(485,144)
Total stockholders’ equity
878,937 
1,074,313 
Total liabilities and stockholders’ equity
$
2,150,885 $
2,376,467 
The accompanying notes are an integral part of these Consolidated Financial Statements.
38

INDEX
CMC MATERIALS, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands) 
Year Ended September 30,
2021
2020
2019
Cash flows from operating activities:
Net (loss) income
$
(68,577) $
142,828 $
39,215 
Adjustments to reconcile Net (loss) income to net cash provided by operating activities:
Impairment charges
230,392 
2,314 
67,372 
Depreciation and amortization
132,170 
127,737 
98,592 
Deferred income tax benefit
(41,347)
(11,267)
(27,150)
Share-based compensation expense
19,678 
16,396 
18,227 
Amortization of terminated interest rate swap contract
9,287 
— 
— 
Amortization of debt issuance costs
3,152 
3,123 
2,884 
Loss (gain) on disposal of assets
1,374 
(71)
(36)
Non-cash foreign exchange loss (gain)
406 
(266)
839 
Accretion and adjustment on Asset Retirement Obligations
295 
599 
530 
Non-cash charge on inventory step up of acquired inventory sold
— 
— 
14,869 
Other
(1,047)
(796)
(930)
Changes in operating assets and liabilities:
Accounts receivable
(13,429)
13,075 
(6,156)
Inventories
(13,023)
(12,337)
(20,993)
Prepaid expenses and other assets
(6,576)
8,645 
6,830 
Accounts payable
3,586 
(2,861)
1,163 
Accrued expenses and other liabilities
14,272 
165 
(20,275)
Net cash provided by operating activities
270,613 
287,284 
174,981 
Cash flows from investing activities:
Acquisition of a business, net of cash acquired
(126,877)
— 
(1,182,187)
Additions to property, plant and equipment
(42,103)
(125,839)
(55,972)
Proceeds from the sale of assets
2,620 
1,587 
1,224 
Cash settlement of life insurance policy
— 
— 
3,959 
Net cash used in investing activities
(166,360)
(124,252)
(1,232,976)
Cash flows from financing activities:
Repurchases of common stock under Share Repurchase Program
(120,027)
(35,009)
(10,002)
Dividends paid
(53,015)
(50,383)
(46,324)
Proceeds from issuance of stock
13,388 
14,427 
17,210 
Repayment of long-term debt
(7,988)
(23,313)
(105,326)
Repurchases of common stock withheld for taxes
(5,560)
(3,229)
(4,718)
Debt issuance costs
(1,898)
— 
(18,745)
Proceeds from issuance of long-term debt
— 
— 
1,062,337 
Proceeds from revolving line of credit
— 
150,000 
— 
Repayment on revolving line of credit
— 
(150,000)
— 
Other financing activities
(236)
(149)
— 
Net cash (used in) provided by financing activities
(175,336)
(97,656)
894,432 
39

INDEX
Effect of exchange rate changes on cash
(292)
3,483 
(863)
(Decrease) increase in cash and cash equivalents
(71,375)
68,859 
(164,426)
Cash and cash equivalents at beginning of year
257,354 
188,495 
352,921 
Cash and cash equivalents at end of year
$
185,979 $
257,354 $
188,495 
Supplemental disclosure of cash flow information:
Cash paid for income taxes (net of refunds received)
$
39,389 $
44,535 $
35,432 
Cash paid for interest
28,920 
45,281 
39,181 
Purchases of property, plant and equipment in accrued liabilities and accounts payable at the
end of the period
5,009 
5,365 
8,690 
Equity consideration related to the acquisition of KMG Chemicals, Inc
— 
— 
331,048 
Cash paid during the period for lease liabilities
8,274 
7,554 
— 
Right of use asset obtained in exchange for lease liabilities
3,600 
7,435 
— 
The accompanying notes are an integral part of these Consolidated Financial Statements.
40

INDEX
CMC MATERIALS, INC.
CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS’ EQUITY
(In thousands, except per share amounts)
Year Ended September 30,
2021
2020
2019
Shares
$
Shares
$
Shares
$
Common Stock
Beginning balance
39,914 $
40 
39,592 $
40 
35,862 $
36 
Exercise of stock options
133 
— 
181 
— 
313 
1 
Restricted stock
123 
— 
95 
— 
131 
— 
Common stock under Employee Stock Purchase Plan
51 
— 
46 
— 
49 
— 
Common stock in connection with acquisition of KMG
Chemicals, Inc.
— 
— 
— 
— 
3,237 
3 
Ending balance
40,221 
40 
39,914 
40 
39,592 
40 
Capital in Excess of Par
Beginning balance
1,019,803 
988,980 
622,498 
Share-based compensation expense
19,678 
16,396 
18,227 
Exercise of stock options
7,151 
9,491 
13,194 
Issuance of common stock under Employee Stock Purchase
Plan
6,022 
4,786 
3,941 
Issuance of restricted stock under Deposit Share Program
215 
150 
75 
Issuance of common stock in connection with acquisition of
KMG Chemicals, Inc.
— 
— 
331,045 
Ending balance
1,052,869 
1,019,803 
988,980 
Retained Earnings
Beginning balance
553,718 
461,501 
471,673 
Cumulative effect of accounting changes
— 
488 
(933)
Net (loss) income
(68,577)
142,828 
39,215 
Dividends
(53,173)
(51,099)
(48,454)
Ending balance
431,968 
553,718 
461,501 
Accumulated Other Comprehensive Income (Loss)
Beginning balance
(14,104)
(23,238)
4,539 
Foreign currency translation adjustment
2,517 
19,286 
(8,548)
Cash flow hedges
16,541 
(10,711)
(18,780)
Minimum pension liability adjustment
(163)
1,047 
(449)
Cumulative effect of accounting changes
— 
(488)
— 
Ending balance
4,791 
(14,104)
(23,238)
Treasury Stock
Beginning balance
10,834 
(485,144)
10,491 
(446,906)
10,356 
(432,054)
Repurchases of common stock under Share Repurchase
Program
924 
(120,027)
318 
(35,009)
88 
(10,002)
Repurchases of common stock - other
37 
(5,560)
25 
(3,229)
47 
(4,850)
Ending balance
11,795 
(610,731)
10,834 
(485,144)
10,491 
(446,906)
Total Equity
$
878,937 
$
1,074,313 
$
980,377 
Dividends per share of common stock
$
1.82 
$
1.74 
$
1.66 
Impact due to the adoption of ASU No. 2018-02 in fiscal 2020.
The accompanying notes are an integral part of these Consolidated Financial Statements.
1
1
1.
41

INDEX
CMC MATERIALS, INC.
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
(In thousands, except per share amounts)
1. BACKGROUND AND BASIS OF PRESENTATION
CMC Materials, Inc. (“CMC”, “the Company”, “us”, “we”, or “our”) is a leading global supplier of consumable materials, primarily to semiconductor
manufacturers. The Company’s products play a critical role in the production of advanced semiconductor devices, helping to enable the manufacture of smaller,
faster and more complex devices by its customers. On April 1, 2021 (the “ITS Acquisition Date”), the Company completed the acquisition of 100% of International
Test Solutions, LLC (“ITS”) (the “ITS Acquisition”), which has expanded the Company’s portfolio of critical enabling solutions in the semiconductor
manufacturing process. The Consolidated Financial Statements included in this Annual Report on Form 10-K include the financial results of ITS from the ITS
Acquisition Date. Additionally, the Consolidated Financial Statements include the financial results of KMG Chemicals, Inc. (“KMG”) since the Company’s
acquisition of 100% of the outstanding stock of KMG (the “KMG Acquisition”) on November 15, 2018 (the “KMG Acquisition Date”).
We operate our business within two reportable segments: Electronic Materials and Performance Materials. The Electronic Materials segment consists of our
chemical mechanical planarization (“CMP”) slurries, CMP pads, electronic chemicals, and materials technologies businesses. The Performance Materials segment
consists of our pipeline and industrial materials (“PIM”), wood treatment, and QED Technologies International, Inc. (“QED”) businesses.
The audited Consolidated Financial Statements have been prepared by CMC pursuant to the rules of the Securities and Exchange Commission (“SEC”) and
accounting principles generally accepted in the United States of America (“U.S. GAAP” or “GAAP”). 
In the Consolidated Statements of (Loss) Income of this Annual Report on Form 10-K, the presentation for Interest income has been changed for fiscal years
2020 and 2019 to conform to the current presentation. The amounts for fiscal years 2020 and 2019 related to Interest income are now presented under “Interest
expense, net.” In the Consolidated Balance Sheets of this Annual Report on Form 10-K, Accrued expenses, income taxes payable and other current liabilities was
renamed and is now presented as “Accrued expenses and other current liabilities.” In the Consolidated Statements of Cash Flows of this Annual Report on Form
10-K, the presentation for the Provision for credit losses and the presentation for Repurchases of common stock under Cash flows from financing activities have
been changed for fiscal years 2020 and 2019 to conform to the current presentation. The amounts for fiscal years 2020 and 2019 related to the Provision for credit
losses are now presented under “Other” and common shares withheld for taxes and included in Repurchases of common stock previously, are now presented
separately under “Repurchases of common stock withheld for taxes.”
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
PRINCIPLES OF CONSOLIDATION
The Consolidated Financial Statements include the accounts of CMC Materials, Inc. and its subsidiaries. All intercompany transactions and balances between
the companies have been eliminated.
USE OF ESTIMATES
The preparation of financial statements and related disclosures in conformity with U.S. GAAP requires management to make judgments, assumptions and
estimates that affect the amounts reported in the Consolidated Financial Statements and accompanying notes. We base our estimates on historical experience,
current conditions, and on various other assumptions that we believe are reasonable under the circumstances. However, future events are subject to change and
estimates and judgments routinely require adjustment. Actual results may differ from these estimates under different assumptions or conditions.
CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS
We consider investments in all highly liquid financial instruments with original maturities of three months or less to be cash equivalents. Short-term
investments include securities generally having maturities of 90 days to one year.
ACCOUNTS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES
Trade accounts receivable are recorded at the invoiced amount and do not bear interest. We maintain an allowance for credit losses for estimated losses
resulting from the potential inability of our customers to make required payments. Our allowance for credit losses is based on historical collection experience,
adjusted for any specific known conditions or circumstances such as customer bankruptcies and increased risk due to economic conditions. Uncollectible account
balances are charged against the allowance when we believe that it is probable that the receivable will not be recovered. Amounts charged to bad debt expense are
recorded in Selling, general and administrative expenses.
42

INDEX
Our allowance for credit losses changed during the fiscal year ended September 30, 2021 and 2020 as follows:
2021
2020
Beginning Balance
$
583 $
2,377 
Amount of charge (benefit) to expense
76 
(1,122)
Deductions and adjustments
(132)
(672)
Ending Balance at September 30
$
527 $
583 
CONCENTRATION OF CREDIT RISK
Financial instruments that subject us to concentrations of credit risk consist principally of accounts receivable. We perform ongoing credit evaluations of our
customers’ financial conditions and generally do not require collateral to secure accounts receivable. Our exposure to credit risk associated with nonpayment is
affected principally by conditions or occurrences within the semiconductor industry, pipeline and adjacent industries, and the global economy. We have not
experienced significant losses relating to accounts receivable from individual customers or groups of customers.
Customers who represented more than 10% of consolidated revenue, all of which are in the Electronic Materials segment, are as follows:
Year Ended September 30,
2021
2020
2019
Intel
13 %
15 %
14 %
Samsung Group
11 %
11 %
11 %
Of those customers who represented more than 10% of consolidated revenue, their net accounts receivable as a percentage of total net accounts receivable are
as follows:
September 30,
2021
2020
Intel
9 %
9 %
Samsung Group
7 %
7 %
FAIR VALUES OF FINANCIAL INSTRUMENTS
The recorded amounts of cash, accounts receivable, and accounts payable approximate their fair values due to their short-term, highly liquid characteristics.
Fair value is defined as the price that would be received from the sale of an asset or paid to transfer a liability (an exit price) in the principal or most advantageous
market for the asset or liability in an orderly transaction between market participants on the measurement date. The three-level hierarchy for disclosure is based on
the extent and level of judgment used to estimate fair value. Level 1 inputs consist of valuations based on quoted market prices in active markets for identical assets
or liabilities. Level 2 inputs consist of valuations based on quoted prices for similar assets or liabilities, quoted prices for identical assets or liabilities in an inactive
market, or other observable inputs. Level 3 inputs consist of valuations based on unobservable inputs that are supported by little or no market activity.
INVENTORIES
Inventories are recorded on the first-in, first-out (FIFO) basis and are stated at the lower of cost or net realizable value. Finished goods and work in process
inventories include material, labor and manufacturing overhead costs. We regularly review and write down the value of inventory as required for estimated
obsolescence or lack of marketability. 
43

INDEX
PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment are recorded at cost. Depreciation is based on the following estimated useful lives of the assets using the straight-line method:
Land improvements
10-20 years
Buildings
15-30 years
Machinery and equipment
3-20 years
Furniture and fixtures
5-10 years
Vehicles
5-8 years
Information systems
3-5 years
Assets under financing leases
The shorter of the term of the lease or estimated useful life
LEASES
Effective October 1, 2019, the Company adopted the new lease accounting guidance which requires the recognition of a right of use asset and a corresponding
lease liability for operating leases. The Company applies provisions of the guidance to operating leases with terms of more than twelve months for all lease classes
except for real estate leases for which the guidance is applied to all leases. Additionally, the Company elected to account for non-lease components and lease
components together as a single lease component for all asset classes. The Company’s lease transactions primarily consist of leases for facilities, equipment, and
vehicles under operating leases. Certain of the Company’s leases have an option to extend the lease term and the renewal period is included in determining the
lease term for leases where the renewal option is reasonably certain to be exercised.
The new standard was adopted in our first quarter of fiscal 2020 using the modified retrospective transition method; however, we applied the optional
transition adjustment that permits us to continue applying Topic 840 within the comparative periods disclosed.
ASSET RETIREMENT OBLIGATIONS
Our asset retirement obligations (“AROs”) include reclamation requirements as regulated by government authorities or contractual obligations for the removal
or storage of hazardous materials, decontamination or demolition of above ground storage tanks, and certain restoration and decommissioning obligations related to
certain of our owned and leased properties. The Company recognizes an ARO in the period in which it is incurred, if a reasonable estimate can be made. The
accounting for ARO requires estimates by management about when and how the assets will be retired, the cost of retirement obligations, discount and inflation
rates used in determining fair values and the methods of remediation associated with our AROs. We generally use assumptions and estimates that reflect the most
likely remediation method. Our estimated liability for AROs is revised annually, and whenever events or changes in circumstances indicate that a revision to the
estimate is necessary.
In subsequent periods, the Company recognizes accretion expense in Cost of sales increasing the ARO balances, such that the balance will ultimately equal the
expected cash flows at the time of settlement. AROs are included in Accrued expenses and other current liabilities and Other long-term liabilities on the
Consolidated Balance Sheets.
The Company has multiple production facilities with an indeterminate useful life and there is insufficient information available to estimate a range of potential
settlement dates for the obligation. Therefore, the Company cannot reasonably estimate the fair value of the liability. When a reasonable estimate can be made, an
asset retirement obligation will be recorded, and such amounts may be material to the Consolidated Financial Statements in the period in which they are recorded.
IMPAIRMENT OF LONG-LIVED ASSETS
We assess the recoverability of the carrying value of long-lived assets to be held and used, whenever events or changes in circumstances indicate that the
carrying value may not be recoverable. For purposes of recognition and measurement of an impairment loss, long-lived assets are either individually identified or
grouped with other assets and liabilities at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities.
When a long-lived asset is considered impaired a loss is recognized based on the amount by which the carrying value exceeds the fair value of the long-lived asset.
44

INDEX
GOODWILL AND OTHER INTANGIBLE ASSETS
Goodwill and indefinite-lived Intangible assets are tested for impairment annually as of July 1, or between annual tests if an event occurs or circumstances
change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. Historically, we have annually tested goodwill and
indefinite-lived intangible assets for impairment as of September 30. This year, we voluntarily changed the annual impairment testing date from September 30 to
July 1. We believe this measurement date, which represents a change in the method of applying an accounting principle, is preferable because it better aligns with
the timing of the Company’s financial planning process which is a key component of the annual impairment tests. The change in the measurement date did not
delay, accelerate or prevent an impairment charge. Each quarter, the Company evaluates impairment indicators to determine whether there is a triggering event
warranting a goodwill and intangible asset impairment analysis. As such, the change in the annual test date was applied prospectively effective July 1, 2021. The
Company’s reporting units are CMP slurries, CMP pads, electronic chemicals, PIM, wood treatment, and QED.
Intangible assets that have finite lives are amortized over their respective useful lives of 2 to 20 years. Intangible assets are tested for impairment if an event
occurs or circumstances change that indicates the carrying value may not be recoverable.
For each reporting unit, the Company has the option to perform either the qualitative analysis (“step zero”) or a quantitative analysis (“step one”). In the event
a reporting unit fails the qualitative assessment, it is required to perform the quantitative test. The goodwill impairment assessment is performed by comparing the
estimated fair value of the reporting units to their carrying amounts. Estimated fair values are determined using the average of a discounted cash flows model and a
market approach based on earnings before interest, taxes, and depreciation for a group of guideline comparable companies. Factors requiring significant judgment
include the selection of valuation approach and assumptions related to future revenue and gross margin, discount rates, and terminal growth rates. If the fair value
of the reporting unit is less than its carrying value, the reporting unit will recognize an impairment for the lesser of either the amount by which the reporting unit’s
carrying amount exceeds the fair value of the reporting unit or the reporting unit’s goodwill carrying value. We used a step zero qualitative analysis for the CMP
slurries and QED reporting units. All other reporting units were assessed for goodwill impairment using a step one approach.
The Flowchem LLC (“Flowchem”) trade name, an indefinite-lived intangible asset that is part of the PIM reporting unit, was assessed for impairment using a
relief from royalty approach. Factors requiring significant judgment include projected revenue, royalty rates, terminal growth rates, and discount rates.
The Company provides disclosure of the potential risk of impairment when a reporting unit’s fair value exceeds its carrying value by less than ten percent.
REVENUE RECOGNITION
Performance Obligations and Material Rights
The Company recognizes revenue using the five-step process of 1) identifying the contract, 2) identifying the performance obligation within the contract, 3)
determining the transaction price, 4) allocating the transaction price to the performance obligations, and 5) recognizing the revenue as the performance obligations
are satisfied through the transfer of control. A majority of the Company’s contracts have a single performance obligation which represents, in most cases, the
products, equipment or services being sold to the customer. Some contracts include delivery of free product that we have concluded represents a material right.
Contracts vary in length and payment terms vary depending on the products or services offered, however, the period of time between invoicing and when
payment is due is typically not significant. As a result, we do not have significant financing components. Transaction price is determined upon establishment of the
contract that contains the final terms of the sale, including the description, quantity, and price of goods or services purchased. Contracts with prospective tiered
price discounts require judgment in determining the transaction price. For sales contracts that contain multiple performance obligations, the Company allocates the
transaction price to each performance obligation identified in the contract based on relative standalone selling prices or estimates of such prices. When we invoice
for products shipped under contracts with multiple performance obligations, we defer a portion of the revenue associated with the material rights on the balance
sheet as a contract liability.
The Company recognizes revenue related to product sales at a point in time following the transfer of control of such products to the customer, which generally
occurs upon shipment, or delivery depending on the terms of the underlying contracts. Revenue is recognized on consignment sales when control transfers to the
customer, generally at the point of customer usage of the product. For services provided to customers in the pipeline and adjacent industries, including preventive
maintenance, repair, and specialized isolation sealing on pipelines and training, revenue is recorded at a point in time when the services are completed as this is
when right to payment and customer acceptance occurs.
45

INDEX
Costs to Obtain and Fulfill a Contract
For certain contracts within the Performance Materials segment, commissions are paid to sales agents based upon a percentage of end-customer invoice value
after funds are received by the Company from its customers. As a practical expedient, the Company does not capitalize commissions as the associated contracts are
generally one year or less in duration. For shipping and handling activities performed after a customer obtains control of the goods, the Company has elected to
account for these costs as activities to fulfill the promise to transfer the goods and included in Cost of sales.
RESEARCH, DEVELOPMENT AND TECHNICAL
Research, development and technical costs are expensed as incurred and consist primarily of staffing costs, materials and supplies, depreciation, utilities and
other facilities costs.
LEGAL COSTS
Legal costs are expensed as incurred.
INCOME TAXES
Current income taxes are determined based on estimated taxes payable or refundable on tax returns for the current year. Deferred income taxes are determined
using enacted tax rates for the effect of temporary differences between the book and tax bases of recorded assets and liabilities. The effect on deferred tax assets
and liabilities of changes in tax rates is recognized in income in the period that includes the enactment date. Provisions are made for both U.S. and any foreign
deferred income tax liability or benefit. We assess whether or not our deferred tax assets will ultimately be realized and record an estimated valuation allowance on
those deferred tax assets that may not be realized. The accounting guidance regarding uncertainty in income taxes prescribes a threshold for the financial statement
recognition and measurement of tax positions taken or expected to be taken on a tax item. Under these standards, we may recognize the tax benefit of an uncertain
tax position only if it is more likely than not that the tax position will be sustained by the taxing authorities, based on the technical merits of the position.
The Company recognizes interest and penalties related to unrecognized tax benefits within the Provision for income taxes. Accrued interest and penalties are
included in Accrued expenses and other current liabilities and Other long-term liabilities on the Consolidated Balance Sheets.
DERIVATIVES AND HEDGING
The Company is exposed to various market risks, including risks associated with interest rates and foreign currency exchange rates. We enter into certain
derivative transactions to mitigate the volatility associated with these exposures. We have policies in place that define acceptable instrument types we may enter
into and we have established controls to limit our market risk exposure. We do not use derivative financial instruments for trading or speculative purposes. In
addition, all derivatives, whether designated in hedging relationships or not, are recorded on the Consolidated Balance Sheets at fair value on a gross basis.
Interest Rate Swaps
The fair value of the interest rate swap is estimated using standard valuation models using market-based observable inputs over the contractual term, including
one-month London Inter-bank Offered Rate (“LIBOR”) based yield curves, among others. We consider the risk of nonperformance, including counterparty credit
risk, in the calculation of the fair value. We have designated these swap agreements as cash flow hedges. As cash flow hedges, unrealized gains are recognized as
assets and unrealized losses are recognized as liabilities. Unrealized gains and losses are designated as effective or ineffective based on a comparison of the
changes in fair value of the interest rate swaps and changes in fair value of the underlying exposures being hedged. The effective portion is recorded as a
component of accumulated other comprehensive income (loss), while the ineffective portion is recorded as a component of Interest expense. Changes in the method
by which we pay interest from one-month LIBOR to another rate of interest could create ineffectiveness in the swaps, and result in amounts being reclassified from
other comprehensive (loss) income into Net (loss) income. Hedge effectiveness is tested quarterly to determine if hedge treatment is appropriate. Realized gains
and losses are recorded on the same financial statement line as the hedged item, which is Interest expense.
Foreign Currency Contracts Not Designated as Hedges
On a regular basis, we enter into forward foreign exchange contracts in an effort to mitigate the risks associated with currency fluctuations on certain foreign
currency balance sheet exposures. These foreign exchange contracts do not qualify for hedge accounting; therefore, the gains and losses resulting from the impact
of currency exchange rate movements on our forward foreign exchange contracts are recognized as Other expense, net in the accompanying Consolidated
Statements of (Loss) Income in the period in which the exchange rates change.
46

INDEX
SHARE-BASED COMPENSATION
The Company’s long-term equity incentive plan authorizes the Compensation Committee of the Board of Directors to provide equity-based compensation in
various form, including stock options, restricted stock, restricted stock units (“RSUs”), and performance share units (“PSUs”), for the purpose of providing our
employees, officers, and non-employee directors incentives, some of which are performance-based. We also have an employee stock purchase plan (“ESPP”). All
awards under share-based payment plans are accounted for at fair value at the date of grant. We recognize expense on share-based awards to employees expected to
vest over the service period, which is the shorter of the period until the employees’ retirement eligibility dates or the service period of the award.
EARNINGS PER SHARE
Basic (loss) earnings per share (“EPS”) is calculated by dividing Net (loss) income available to common stockholders by the weighted-average number of
common shares outstanding during the period, excluding the effects of unvested restricted stock awards with a right to receive non-forfeitable dividends, which are
considered participating securities and are included in the calculation using the two-class method. Diluted EPS is calculated in a similar manner, but the weighted-
average number of common shares outstanding during the period is increased to include the weighted-average dilutive effect of “in-the-money” stock options and
unvested restricted stock shares using the treasury stock method.
EFFECTS OF RECENT ACCOUNTING PRONOUNCEMENTS
Recently Adopted Accounting Pronouncements
ASU No. 2016-13, “Measurement of Credit Losses on Financial Instruments” (Topic 326) and subsequent amendments, requires financial assets measured at
amortized cost to be presented at the net amount expected to be collected using an allowance account and provides that credit losses relating to available-for-sale
debt securities should be recorded through an allowance for credit losses. The Company adopted these standards effective October 1, 2020 using the modified
retrospective approach, which did not impact our results of operations or financial condition. Upon adoption, no adjustment was made to retained earnings or the
Allowance for credit losses at October 1, 2020.
ASU No. 2018-13 “Fair Value Measurement” (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement
provides specific guidance on various disclosure requirements in Topic 820, including removal, modification and addition to current disclosure requirements. The
Company adopted this standard effective October 1, 2020, which did not have a material impact on our financial statement disclosures.
ASU No. 2018-15 “Intangibles—Goodwill and Other—Internal-Use Software” (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred
in a Cloud Computing Arrangement That Is a Service Contract, requires a customer in a hosting arrangement that is a service contract to follow the guidance in
Subtopic 350-40 to determine which implementation costs to capitalize as an asset or expense related to the service contract. The Company adopted this standard
effective October 1, 2020, which did not have a material impact on our results of operations or financial condition.
Accounting Pronouncements Issued But Not Yet Adopted
ASU No. 2019-12 “Income Taxes” (Topic 740): Simplifying the Accounting for Income Taxes was issued to simplify Topic 740 through improving
consistency and removing certain exceptions to general principles. ASU 2019-12 will be effective for us beginning October 1, 2021. The adoption of this standard
does not have a material impact on our financial statements.
ASU No. 2020-04 “Reference Rate Reform” (Topic 848) - Facilitation of the Effects of Reference Rate Reform on Financial Reporting provides optional
guidance for accounting for contracts, hedging relationships, and other transactions affected by the reference rate reform, if certain criteria are met. The provisions
of this standard are available for election through December 31, 2022. We are currently evaluating the impact of the reference rate reform on our contracts and the
resulting impact of adopting this standard on our financial statements.
47

INDEX
3.  REVENUE FROM CONTRACTS WITH CUSTOMERS
The Company disaggregates revenue by product area and segment as it best depicts the nature and amount of the Company’s revenue. See Note 21 of this
Annual Report on Form 10-K for more information.
The following table provides information about contract liability balances:
Consolidated Balance Sheet Location
September 30,
2021
2020
Contract liabilities (current)
Accrued expenses and other current liabilities
$
8,883 $
8,501 
Contract liabilities (noncurrent)
Other long-term liabilities
1,788 
1,288 
The amount of revenue recognized during the year ended September 30, 2021 and 2020 that was included in the opening current contract liability balances in
our Performance Materials segment was $5,429 and $3,576, respectively. The amount of revenue recognized during the year ended September 30, 2021 and 2020
that was included in our opening contract liability balances in our Electronic Materials segment was not material.
The table below discloses (1) the aggregate amount of the transaction price allocated to performance obligations that are partially or wholly unsatisfied as of
the end of the reporting period for contracts with an original duration of greater than one year and (2) when the Company expects to recognize this revenue.
Less Than 1 Year
1-3 Years
3-5 Years
Total
Revenue expected to be recognized on contract liability amounts as of
September 30, 2021
$
1,009 $
1,057 $
731 
$
2,797 
4. BUSINESS COMBINATION
The Company completed the ITS Acquisition on the ITS Acquisition Date for a purchase consideration of $129,071, inclusive of working capital adjustments,
or $126,877 net of cash acquired, which it funded entirely from cash on hand. ITS designs and produces high-performance consumables used to optimize critical
semiconductor testing processes, thus expanding CMC’s product offerings. ITS is included in the material technologies business within our Electronic Materials
business segment. The ITS Acquisition was accounted for using the acquisition method of accounting, and ITS’s results of operations are included in our
Consolidated Statements of (Loss) Income and Consolidated Statements of Comprehensive (Loss) Income from the ITS Acquisition Date. The ITS Acquisition
would not have materially affected the Company’s results of operations or financial position for any periods presented. In fiscal 2021, acquisition and integration-
related expenses for the ITS Acquisition were not material.
The Company allocated $81,960 and $37,200 of the purchase price to goodwill and intangible assets, respectively. The goodwill is primarily attributable to
anticipated revenue growth from the combined company product portfolio and is expected to be deductible for income tax purposes.
The following table sets forth the components of identifiable intangible assets acquired in the ITS Acquisition:
Fair Value
Estimated Useful Life 
(years)
Amortization Method
Technology and know-how
$
25,400 
10
Straight-line
Customer relationships
8,100 
20
Accelerated
Trade name
3,700 
10
Straight-line
Total intangible assets
$
37,200 
The intangible assets subject to amortization have a weighted average useful life of 12.2 years.
The fair value of acquired identifiable intangible assets was determined using Level 3 inputs for the “income approach” on an individual asset basis. The key
assumptions used in the calculation of the discounted cash flows include projected revenue, operating expenses, and obsolescence rate. The valuations and the
underlying assumptions have been deemed reasonable by the Company’s management. There are inherent uncertainties and management judgment required in
these determinations.
The purchase price allocation for the ITS Acquisition was finalized during the fourth quarter of fiscal 2021.
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INDEX
The Company completed the KMG Acquisition on the KMG Acquisition Date, and KMG’s results of operations have been included in our Consolidated
Statements of (Loss) Income and Consolidated Statements of Comprehensive (Loss) Income from that date.
5. FAIR VALUE OF FINANCIAL INSTRUMENTS
The Company is required to record certain assets and liabilities at fair value. The valuation methods used for determining the fair value of these financial
instruments by hierarchy are as follows:
Level 1
Cash and cash equivalents consist of various bank accounts used to support our operations and investments in institutional money-market funds that
are traded in active markets.
Other long-term investments represent the fair value of investments under our supplemental employee retirement plan (“SERP”). The fair value of
the investments is determined through quoted market prices within actively traded markets.
Level 2
Derivative financial instruments include foreign exchange contracts and an interest rate swap contract. The fair value of our derivative instruments is
estimated using standard valuation models and market-based observable inputs over the contractual term, including one-month LIBOR based yield
curves for the interest rate swap, and forward rates and/or the Overnight Index Swap curve for forward foreign exchange contracts, among others.
Level 3
No Level 3 financial instruments
The following table presents financial instruments, other than debt, that we measured at fair value on a recurring basis. See Note 13 of this Annual Report on
Form 10-K for a discussion of our debt. In instances where the inputs used to measure the fair value of an asset fall into more than one level of the hierarchy, we
have classified them based on the lowest level input that is significant to the determination of the fair value.
Level 1
Level 2
Level 3
Total 
Fair Value
September 30,
September 30,
September 30,
September 30,
2021
2020
2021
2020
2021
2020
2021
2020
Assets:
Cash and cash equivalents
$
185,979 $
257,354 $
— $
— 
$
— 
$
— 
$
185,979 $
257,354 
Other long-term investments
1,439 
1,214 
— 
— 
— 
— 
1,439 
1,214 
Derivative financial instruments
— 
— 
12,335 
27 
— 
— 
12,335 
27 
Total assets
$
187,418 $
258,568 $
12,335 $
27 
$
— 
$
— 
$
199,753 $
258,595 
Liabilities:
Derivative financial instruments $
—
$
—
$
3,383
$
38,157
$
—
$
—
$
3,383
$
38,157
Total liabilities
$
—
$
—
$
3,383
$
38,157
$
—
$
—
$
3,383
$
38,157
6. INVENTORIES
Inventories consisted of the following:
September 30,
2021
2020
Raw materials
$
67,969 $
66,591 
Work in process
17,358 
15,148 
Finished goods
88,137 
77,395 
Total
$
173,464 $
159,134 
49

INDEX
7. PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment consisted of the following:
September 30,
2021
2020
Land and land improvements
$
37,421 $
36,775 
Buildings
195,252 
166,907 
Machinery and equipment
352,014 
280,432 
Vehicles
20,075 
18,719 
Furniture and fixtures
10,045 
9,865 
Information systems
66,723 
56,573 
Finance leases
2,442 
2,514 
Construction in progress
43,542 
123,441 
Total property, plant and equipment
727,514 
695,226 
Less: accumulated depreciation
(372,743)
(333,159)
Net property, plant and equipment
$
354,771 $
362,067 
Depreciation expense was $48,210, $39,929 and $37,584 for the years ended September 30, 2021, 2020 and 2019, respectively.
8. ASSET RETIREMENT OBLIGATIONS
The following table provides a roll-forward of the AROs reflected in the Company’s Consolidated Balance Sheets:
2021
2020
Beginning Balance
$
11,759 $
12,675 
Purchase accounting in connection with the KMG Acquisition
— 
(860)
Liabilities Settled
(21)
— 
Accretion of discount
585 
599 
Estimate revision
(290)
(655)
Ending Balance at September 30
$
12,033 $
11,759 
9. GOODWILL AND OTHER INTANGIBLE ASSETS
Goodwill activity for each of the Company’s reportable segments for the years ended September 30, 2021 and 2020 is as follows:
Electronic
Materials
Performance
Materials
Total
Balance at September 30, 2019
$
352,797 
$
357,274 
$
710,071 
Foreign currency translation impact
7,628 
(257)
7,371 
Other
— 
1,205 
1,205 
Balance at September 30, 2020
360,425 
358,222 
718,647 
Foreign currency translation impact
1,848 
1,573 
3,421 
Additions due to acquisitions (See Note 4)
81,960 
— 
81,960 
Impairment
— 
(227,126)
(227,126)
Balance at September 30, 2021
$
444,233 
$
132,669 
$
576,902 
There are no accumulated impairment amounts at September 30, 2020 or 2019.
1
1
1.
50

INDEX
During fiscal 2021, the Company recorded impairment charges related to the PIM and wood treatment reporting units within the Performance Materials
segment. As a result of lower than anticipated recovery from a drop in demand for our PIM products due to the ongoing impact of the COVID-19 pandemic
(“Pandemic”), combined with a near-to-mid term increase in raw material cost for the PIM business, we determined that it was more likely than not that the fair
value of the PIM reporting unit was below its carrying value, requiring the PIM reporting unit to be tested for impairment at March 31, 2021. Based on the results
of the interim impairment test, the Company concluded that the carrying value of the PIM reporting unit exceeded the estimated fair value, and recognized a non-
cash, pre-tax goodwill impairment charge of $201,550. The goodwill impairment charge is included in the Performance Materials segment and presented within
Impairment charges, and the related tax benefit of $23,539 is included in the Provision for income taxes in the Consolidated Statements of (Loss) Income for the
year ended September 30, 2021.
In connection with our annual impairment assessment, the estimated fair value of the PIM reporting unit was determined to exceed the carrying value by
approximately 5% as of July 1, 2021 and no additional impairment was recognized. The most significant estimates and assumptions inherent in the discounted cash
flows model are the forecasted revenue growth rate, forecasted gross margin, the discount rate and the terminal growth rate. These assumptions are classified as
level 3 inputs. The Company’s projections for revenue and gross margin are based on the Company’s multiyear forecast, which reflects a recovery from the
Pandemic during the forecast period and normalization of raw material costs. The discount rate was based on an estimated weighted average cost of capital
(“WACC”) for the PIM reporting unit. The components of WACC are the cost of equity and the cost of debt, each of which requires judgment by management to
estimate. The company developed its cost of equity estimate based on perceived risks and predictability of future cash flows.
The remaining carrying value of the PIM reporting unit as of September 30, 2021 of $566,300 includes $118,235 of goodwill and $46,000 of indefinite lived
intangible assets.
Additionally, the Company recorded non-cash, pre-tax goodwill impairment charge of $25,576 for the year ended September 30, 2021, related to the wood
treatment asset group and reporting unit due to the previously announced planned closure of the facilities. See Note 10 of this Annual Report on Form 10-K for
discussion of the wood treatment impairment.
The components of other intangible assets are as follows:
September 30, 2021
September 30, 2020
Gross
Carrying 
Amount
Accumulated 
Amortization
Net
Gross
Carrying 
Amount
Accumulated 
Amortization
Net
Other intangible assets subject to amortization:
Customer relationships, trade names, and
distribution rights
$
701,849 $
207,606 
$
494,243 $
690,716 $
140,037 
$
550,679 
Product technology, trade secrets and know-how
147,270 
63,249 
84,021 
122,135 
49,228 
72,907 
Acquired patents and licenses
8,748 
8,748 
— 
8,921 
8,713 
208 
Total other intangible assets subject to amortization
857,867 
279,603 
578,264 
821,772 
197,978 
623,794 
Other intangible assets not subject to amortization:
Other indefinite-lived intangibles
47,170 
— 
47,170 
47,170 
— 
47,170 
Total other intangible assets not subject to
amortization
47,170 
— 
47,170 
47,170 
— 
47,170 
Total other intangible assets
$
905,037 $
279,603 
$
625,434 $
868,942 $
197,978 
$
670,964 
Other indefinite-lived intangibles not subject to amortization primarily consist of trade names.
1
1.
51

INDEX
Gross Carrying Amount
Balance at
September 30,
2020
Additions
Impairment
FX and Other
Balance at
September 30,
2021
Accumulated
Amortization
Net at
September 30,
2021
Other intangible assets subject to
amortization:
Customer relationships, trade
names, and distribution rights
$
690,716 
$
11,800 
$
(2,419)
$
1,752 $
701,849 
$
207,606 
$
494,243 
Product technology, trade secrets
and know-how
122,135 
25,400 
(583)
318 
147,270 
63,249 
84,021 
Acquired patents and licenses
8,921 
— 
(173)
— 
8,748 
8,748 
— 
Total other intangible assets
subject to amortization
821,772 
37,200 
(3,175)
2,070 
857,867 
279,603 
578,264 
Other intangible assets not subject
to amortization:
Other indefinite-lived
intangibles
47,170 
— 
— 
— 
47,170 
— 
47,170 
Total other intangible assets not
subject to amortization
47,170 
— 
— 
— 
47,170 
— 
47,170 
Total other intangible assets
$
868,942 
$
37,200 
$
(3,175)
$
2,070 $
905,037 
$
279,603 
$
625,434 
Refer to Note 4 of this Annual Report on Form 10-K for additional information regarding the ITS acquisition.
Refer to Note 10 of this Annual Report on Form 10-K for additional information regarding the wood treatment impairment.
Amortization expense was $81,083, $85,557 and $59,931 for fiscal 2021, 2020 and 2019, respectively. Estimated future amortization expense of intangible
assets as of September 30, 2021 for the five succeeding fiscal years is as follows:
Fiscal Year
Estimated 
Amortization 
Expense
2022
$
78,566 
2023
66,716 
2024
59,440 
2025
54,251 
2026
49,568 
We continue to actively monitor the industries in which we operate and our businesses’ performance for indicators of potential impairment. If current global
macroeconomic conditions related to the Pandemic persist and continue to adversely impact our Company, we may have future additional impairments of goodwill
or other intangible assets. Potential future impairments could be material to the Company’s Consolidated Balance Sheets and to the Consolidated Statements of
(Loss) Income, but we do not expect them to affect the Company’s reported Net cash provided by operating activities.
1
2
1.
2.
52

INDEX
10. IMPAIRMENT - WOOD TREATMENT
IMPAIRMENT OF LONG-LIVED ASSETS
As a result of the previously announced planned facilities closures due to the strategic decision to exit the wood treatment business, the Company previously
adjusted the remaining assets’ useful lives such that they do not extend beyond the expected closure dates of the facilities. The Company tested the recoverability
of its long-lived assets and determined the carrying amount of the assets exceeded the sum of the expected undiscounted future cash flows, and as a result, we
compared the fair value of the wood treatment asset group, which was determined based on a discounted cash flow model, to its carrying value. As a result, the
Company recorded non-cash, pre-tax impairment charges of $3,266, $2,314 and $67,372 for the years ended September 30, 2021, 2020 and 2019, respectively.
There was no remaining carrying value of definite-lived intangible assets or Property, plant and equipment as of September 30, 2021.
Key assumptions in testing the assets for recoverability and development of the fair value of the asset group included projected future revenue and gross
margin. As the inputs for testing recoverability, including estimates of future revenue and gross margin, are not generally observable in active markets, the
Company considers such measurements to be Level 3 measurements in the fair value hierarchy. The duration of the future revenue and gross margin estimates are
limited to the period through the closure dates.
IMPAIRMENT OF GOODWILL
The fair value of the wood treatment reporting unit, which was determined based on a discounted cash flow model, did not exceed the carrying value of the
reporting unit. Key assumptions in our goodwill impairment test included projected future revenue and gross margin. As a result, the Company recorded a non-
cash, pre-tax impairment charge of $25,576 for the year ended September 30, 2021.
As the Company approaches the closure dates of the facilities and there are finite estimated future cash flows, the carrying value of the wood treatment
reporting unit will not be recoverable, resulting in future impairments of goodwill. The remaining carrying value of the wood treatment reporting unit as of
September 30, 2021 includes $9.4 million of goodwill, which will be periodically impaired through the closure dates, resulting in no fair value ascribed to the wood
treatment business by the dates of closure. The amount of the periodic impairments will vary depending on the timing of the remaining future cash flows of the
business and carrying value of the reporting unit at each reporting period.
PRESENTATION OF IMPAIRMENT CHARGES
The impairment charges for wood treatment, included in the Performance Materials segment and presented within Impairment charges in the Consolidated
Statements of (Loss) Income, are as follows:
Year Ended September 30,
2021
2020
2019
Long-lived asset impairment charges:
Property, plant, and equipment, net
$
91 $
450 $
4,063 
Other intangible assets, net
3,175 
1,864 
63,309 
Total wood treatment long-lived asset impairment charges
3,266 
2,314 
67,372 
Goodwill
25,576 
— 
— 
Total wood treatment impairment charges
$
28,842 $
2,314 $
67,372 
The Company recognized a tax benefit of $606, $608 and $17,072, for the years ended September 30, 2021, 2020 and 2019, respectively, in Provision for
income taxes in the Consolidated Statements of (Loss) Income related to long-lived asset impairments. The impairment charges related to goodwill are not tax
deductible, therefore there is no related tax benefit for a portion of the impairment recorded for the year ended September 30, 2021.
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INDEX
11. OTHER LONG-TERM ASSETS
September 30,
2021
2020
Right of use assets
$
29,302 $
30,999 
Interest rate swap (See Note 15)
12,335 
— 
Prepaid unamortized debt issuance cost - revolver
2,201 
537 
SERP investments
1,439 
1,214 
Vendor contract assets
1,329 
2,889 
Other long-term assets
5,378 
4,368 
Total
$
51,984 $
40,007 
12. ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES
September 30,
2021
2020
Accrued compensation
$
47,360 $
46,465 
Income taxes payable
16,836 
16,216 
Dividends payable
13,827 
13,669 
ARO (current)
11,933 
— 
Contract liabilities (current)
8,883 
8,501 
Current portion of operating lease liability
7,646 
6,513 
Taxes, other than income taxes
6,620 
5,044 
Current portion of terminated swap liability (See Note 15)
5,855 
— 
Goods and services received, not yet invoiced
3,866 
3,957 
Interest rate swap liability
2,995 
11,992 
Accrued interest
1,846 
29 
Other
12,130 
9,056 
Total
$
139,797 $
121,442 
13. DEBT
Total debt consisted of the following:
September 30,
2021
2020
Senior Secured Term Loan Facility, one-month LIBOR plus 2.00%
$
928,375 $
936,363 
Less: Unamortized debt issuance costs
(12,031)
(14,949)
Total debt
916,344 
921,414 
Less: Current maturities and short-term debt
(13,313)
(10,650)
Total long-term debt excluding current maturities
$
903,031 $
910,764 
TERM LOAN FACILITY
In connection with the KMG Acquisition, the Company entered into a credit agreement (“Credit Agreement”), which includes the Senior Secured Term Loan
Facility (“Term Loan Facility”) in an aggregate principal amount of $1,065.0 million. During the first quarter of fiscal 2020, the Company amended the Credit
Agreement (“Amended Credit Agreement”) to reduce the interest rate on the Term Loan Facility. Borrowings under the Term Loan Facility bear interest at a rate
per annum equal to, at the Company’s option, either (a) a LIBOR, subject to a 0.00% floor, or (b) a base rate, in each case, plus an applicable margin of, in the case
of borrowings under the Term Loan Facility, 2.00% for LIBOR loans and 1.00% for base rate loans. The borrowings are guaranteed by each of the Company’s
wholly-owned domestic subsidiaries and are secured by substantially all assets of the Company and of each subsidiary guarantor, in each case subject to certain
exceptions.
54

INDEX
The Term Loan Facility matures on November 15, 2025, and amortizes in equal quarterly installments of 0.25% of the initial principal amount. In addition, the
Company is required to prepay outstanding loans under the Term Loan Facility, subject to certain exceptions, with up to 50% of the Company’s annual excess cash
flow, as defined under the Amended Credit Agreement, and 100% of the net cash proceeds of certain recovery events and non-ordinary course asset sales. We did
not make any prepayments during the fiscal year ended September 30, 2021 and made total prepayments of $10.0 million during the fiscal year ended
September 30, 2020.
At September 30, 2021, the fair value of the Term Loan Facility, using level 2 inputs, approximated its carrying value of $928,375 as the loan bears a floating
market rate of interest.
During the first quarter of fiscal 2021, the Company entered into a new interest rate swap agreement to extend the duration of its existing floating-to-fixed
interest rate swap agreement and to take advantage of lower interest rates. See Note 15 of this Annual Report on Form 10-K for additional information.
The Amended Credit Agreement contains certain affirmative and negative covenants that limit the ability of the Company, among other things and subject to
certain significant exceptions, to incur debt or liens, make investments, enter into certain mergers, consolidations, asset sales and acquisitions, pay dividends and
make other restricted payments and enter into transactions with affiliates. We believe we are in compliance with these covenants.
The Amended Credit Agreement contains certain events of default, including relating to a change of control. If an event of default occurs, the lenders under the
Credit Facilities will be entitled to take various actions, including the acceleration of amounts due under the Credit Facilities.
As of September 30, 2021, scheduled principal repayments of the Term Loan Facility were:
Fiscal Year
Principal
Repayments
2022
$
13,313 
2023
10,650 
2024
10,650 
2025
10,650 
2026
883,112 
$
928,375 
REVOLVING CREDIT FACILITY
During the fourth quarter of fiscal 2021, the Company amended the Amended Credit Agreement to increase the aggregate amount of the revolving credit
facility from $200.0 million to $350.0 million, inclusive of a letter of credit sub-facility of up to $50.0 million, and to extend the maturity to July 2026 (“Revolving
Credit Facility”). Borrowings under the Revolving Credit Facility bear interest at a rate per annum equal to a base rate in each case, plus an applicable margin of
1.50% for LIBOR loans and 0.50% for base rate loans. The applicable margin for borrowings under the Revolving Credit Facility varies depending on the
Company’s first lien secured net leverage ratio.
There were no amounts outstanding under the Revolving Credit Facility as of September 30, 2021 or 2020.
14. LEASES
We lease certain warehouse facilities, office space, machinery, vehicles, and equipment under cancellable and noncancellable leases, most of which expire in
five years and may be renewed at our option.  
The components of lease expense are as follows:
Year Ended September 30,
Lease Components
2021
2020
Operating lease cost
$
8,329 $
7,871 
Variable and short-term costs
1,324 
1,637 
Total lease cost
$
9,653 $
9,508 
Lease expense for the year ended September 30, 2019 totaled $7,975.
55

INDEX
Supplemental balance sheet information related to leases is as follows:
Consolidated Balance Sheet Location
September 30,
Lease Components
2021
2020
Lease right-of-use assets
Other long-term assets
$
29,302 
$
30,999 
Lease liabilities - current
Accrued expenses and other current liabilities
$
7,646 
$
6,513 
Lease liabilities - non-current
Other long-term liabilities
23,089 
25,967 
Total lease liabilities
$
30,735 
$
32,480 
Weighted-average remaining lease term (in years)
6 years
7 years
Weighted-average discount rate
2.55 %
3.06 %
Future maturities of operating lease liabilities for the years ended September 30 are as follows:
Fiscal Year
Amount
2022
$
8,031 
2023
6,791 
2024
4,816 
2025
3,706 
2026
3,205 
2026 and future years
6,132 
Total future lease payments
32,681 
Less: Imputed interest
1,946 
Operating lease liability
30,735 
15. DERIVATIVE FINANCIAL INSTRUMENTS
We are exposed to various market risks, including risks associated with interest rates and foreign currency exchange rates.  We enter into certain derivative
transactions to mitigate the volatility associated with these exposures. 
CASH FLOW HEDGES - INTEREST RATE SWAP CONTRACT
During the first quarter of fiscal 2021, the Company entered into a new interest rate swap agreement to extend the duration of its existing swap arrangement
and to take advantage of lower interest rates. The existing interest rate swap, which was in a loss position of $35.3 million, was terminated, and the hedging
relationship was de-designated. The liability for the terminated interest rate swap is not measured at fair value and will be paid over the remaining term of the new
swap. The loss amount for the terminated swap is included in Accumulated other comprehensive income (loss) and will be amortized on a straight-lined basis into
interest expense through January 31, 2024, the remaining term of the original swap.
The new interest rate swap is a floating-to-fixed interest rate swap contract to hedge the variability in LIBOR-based interest payments on a portion of our
outstanding variable rate debt. The notional amount is scheduled to decrease quarterly and will expire on January 29, 2027. The new interest rate swap was
designated as a cash flow hedge based on certain quantitative and qualitative assessments and we have determined that the hedge is highly effective and qualifies
for hedge accounting.
FOREIGN CURRENCY CONTRACTS NOT DESIGNATED AS HEDGES
We enter into forward foreign exchange contracts in an effort to mitigate the risks associated with currency fluctuations on certain foreign currency balance
sheet exposures. These foreign exchange contracts do not qualify for hedge accounting. 
56

INDEX
The notional amounts of our derivative instruments are as follows:
September 30,
2021
2020
Derivatives designated as hedging instruments
Interest rate swap contract - new agreement
$
555,210 $
— 
Interest rate swap contract - terminated agreement
— 
571,000 
Derivatives not designated as hedging instruments
Foreign exchange contracts to purchase U.S. dollars
$
4,225 $
8,054 
Foreign exchange contracts to sell U.S. dollars
23,235 
25,105 
The fair values of our derivative instruments included in the Consolidated Balance Sheets are as follows:
Consolidated Balance Sheets Location
Derivative Assets
Derivative Liabilities
September 30,
September 30,
2021
2020
2021
2020
Derivatives designated as hedging
instruments
Interest rate swap contract
Other long-term assets
$
12,335 $
— 
$
— $
— 
Accrued expenses and other current liabilities
— 
— 
2,995 
11,992 
Other long-term liabilities
— 
— 
— 
26,000 
Derivatives not designated as hedging
instruments
Foreign exchange contracts
Prepaid expenses and other current assets
$
— $
27 
$
— $
— 
Accrued expenses and other current liabilities
— 
— 
388 
165 
The following table summarizes the effects of our derivative instrument on our Consolidated Statements of (Loss) Income:
Consolidated Statements of (Loss) Income
Location 
(Loss) Gain Recognized in Consolidated
Statements of (Loss) Income
Year Ended September 30,
2021
2020
2019
Derivatives designated as hedging instruments
Interest rate swap contract
Interest expense, net
$
(4,835) $
(9,360) $
524 
Terminated interest rate swap contract
Interest expense, net
(9,287)
— 
— 
Derivatives not designated as hedging instruments
Foreign exchange contracts
Other expense, net
$
(794) $
(222) $
28 
57

INDEX
The following table summarizes the effects of our derivative instrument on Accumulated other comprehensive income (loss):
Amount of Gain (Loss) Recognized in Other Comprehensive Income
(Loss)
Year Ended September 30,
2021
2020
2019
Derivatives designated as hedging instruments
Interest rate swap contract
$
7,184 $
(23,161) $
(23,667)
We expect approximately $14,139 to be reclassified from Accumulated other comprehensive income (loss) into Interest expense, net during the next twelve
months related to our existing and terminated interest rate swaps based on projected rates of the LIBOR forward curve as of September 30, 2021.
16. SHARE-BASED COMPENSATION PLANS
We grant share-based compensation to eligible participants under our 2021 Omnibus Incentive Plan (the “OIP”), which was approved by our stockholders and
became effective for awards as of March 3, 2021, and prior to that under our 2012 Omnibus Incentive Plan, as amended effective March 7, 2017 (the “Prior Plan”).
The OIP provides for grants of equity awards in the form of stock options, restricted stock, restricted stock units, stock appreciation rights (“SARs”), performance-
based awards, other stock-based awards such as substitute awards in connection with an acquisition, and cash incentive awards. The OIP authorizes up to 2,127
shares of stock to be granted thereunder.  In addition, up to 1,072 shares that become available from awards under the Prior Plan because of events such as
forfeitures, cancellations or expirations will also be available for issuance under the OIP. Shares issued under our share-based compensation plans are issued from
new shares rather than from treasury shares.
STOCK OPTIONS
Non-qualified stock options issued under the OIP are generally time-based and provide for a ten-year term, with options generally vesting equally over a four-
year period.
The fair value of our stock options granted during fiscal 2021, as shown below, was estimated using the Black-Scholes model with the following weighted-
average assumptions:
Year Ended September 30,
2021
2020
2019
Weighted-average grant date fair value
$
51.92 
$
39.68 
$
27.34 
Expected term (in years)
6.74
6.96
6.86
Expected volatility
40 %
32 %
26 %
Risk-free rate of return
0.7 %
1.6 %
2.8 %
Dividend yield
1.2 %
1.3 %
1.6 %
A summary of stock option activity is as follows:
Stock Options
Weighted Average
Exercise Price
Weighted Average
Remaining Contractual
Term 
(in years)
Aggregate
Intrinsic Value 
(in thousands)
Outstanding at September 30, 2020
807 
$
75.87 
Granted
113 
147.67 
Exercised
(132)
54.34 
Forfeited or canceled
(9)
107.33 
Outstanding at September 30, 2021
779 
89.61 
6.0 $
29,654 
Exercisable at September 30, 2021
510 
$
69.52 
4.9 $
27,763 
Expected to vest at September 30, 2021
269 
$
127.60 
8.1 $
1,891 
58

INDEX
Year Ended September 30,
2021
2020
2019
Intrinsic value of options exercised
$
14,640 $
19,077 $
20,711 
Cash received from exercise of options
7,190 
9,350 
13,193 
Tax benefit from exercise of options
2,848 
3,629 
4,449 
Fair value of options vested
3,892 
3,765 
4,506 
As of September 30, 2021, there was $6,183 of total unrecognized share-based compensation expense related to unvested stock options. That cost is expected
to be recognized over a weighted-average period of 2.5 years.
EMPLOYEE STOCK PURCHASE PLAN (“ESPP”)
The ESPP allows all full-time, and certain part-time, employees of our Company and its designated subsidiaries to purchase shares of our common stock
through payroll deductions, subject to a maximum number of shares that a participant may purchase and a maximum dollar expenditure in any six-month offering
period, and certain other criteria. The provisions of the ESPP allow shares to be purchased at a price no less than the lower of 85% of the closing price at the
beginning or end of each semi-annual stock purchase period. We use the Black-Scholes model for estimating the fair value of ESPP purchases. The amount of
ESPP expense recognized in fiscal 2021, 2020, and 2019 was not material. As of September 30, 2021, a total of 240 shares are available for purchase under the
ESPP.
RESTRICTED STOCK, RESTRICTED STOCK UNITS (“RSUs”), AND PERFORMANCE SHARE UNITS (“PSUs”)
Under the OIP, employees and non-employees may be awarded shares of restricted stock or RSUs, which generally vest over a four-year period. Restricted
shares under the OIP may be purchased and placed “on deposit” by executive officers pursuant to the 2001 Deposit Share Program. Shares purchased under this
Deposit Share Program receive a 50% match in restricted shares that vest at the end of a three-year period, and are subject to forfeiture upon early withdrawal of
the deposit shares. The fair value of our restricted stock and RSU awards represents the closing price of our common stock on the date of award. Share-based
compensation expense related to restricted stock and RSU awards is recorded net of expected forfeitures.
PSU awards are granted to certain employees and fully vest upon certification of performance achieved with respect to the PSU following the third anniversary
of the performance period, according to the terms and conditions of the relevant PSU award agreement. Stock-based compensation for the awards is recognized
over a three-year period based on the number of PSUs expected to vest under the awards at the end of the performance period, which is determined using certain
performance measures and is re-evaluated at the end of each fiscal year through the end of the performance period. In addition, the PSUs awarded may be subject
to downward or upward adjustment depending on the total shareholder return achieved by the Company during the particular performance period related to the
PSUs, relative to the total shareholder return of the S&P MidCap 400 Index, as specified in the respective PSU award agreement. We estimate fair value of the
PSUs at award date by using a Monte Carlo simulation model.
A summary of the activity of the restricted stock awards, RSU awards, and PSU awards is presented below:
Restricted Stock Awards
and Units
Weighted Average Grant
Date Fair Value
Nonvested at September 30, 2020
257 
$
104.83 
Granted
101 
141.70 
Vested
(117)
95.82 
Forfeited
(8)
118.64 
Nonvested at September 30, 2021
233 
126.61 
Includes PSUs.
Includes additional PSUs earned relating to the fiscal 2018 grant based on final performance factor.
Year Ended September 30,
2021
2020
2019
Weighted average grant date fair value
$
126.61 $
104.83 $
87.36 
Total fair value of restricted stock awards and units vested
$
11,702 $
7,481 $
11,060 
1
2
1.
2.
59

INDEX
As of September 30, 2021, there was $16,130 of total unrecognized share-based compensation expense related to unvested restricted stock awards and RSUs,
including PSUs, under the OIP. That cost is expected to be recognized over a weighted-average period of 2.2 years.
SHARE-BASED COMPENSATION EXPENSE
Total share-based compensation expense and the classification of that expense in the Consolidated Statements of (Loss) Income is as follows:
Year Ended September 30,
2021
2020
2019
Cost of sales
$
2,970 $
2,863 $
2,727 
Research, development and technical
1,739 
2,090 
2,150 
Selling, general and administrative
14,969 
11,443 
13,350 
Tax benefit
(3,755)
(3,162)
(3,767)
Total share-based compensation expense, net of tax
$
15,923 $
13,234 $
14,460 
Total gross share-based compensation expense is attributable to the following awards:
Year Ended September 30,
2021
2020
2019
Stock Options
$
4,722 $
4,406 $
4,267 
Restricted stock awards and restricted stock units
8,754 
8,259 
11,400 
Performance share units
3,662 
1,957 
1,279 
ESPP
2,540 
1,774 
1,281 
17. EMPLOYEE RETIREMENT PLANS
DEFINED CONTRIBUTION PLANS
The Company has a 401(k) defined contribution plan covering employees in the U.S. The related expense totaled $8,962, $7,658 and $6,698 for the fiscal
years ended September 30, 2021, 2020 and 2019, respectively. The Company’s United Kingdom and Singapore subsidiaries also make immaterial contributions to
retirement plans that function as defined contribution retirement plans.
PENSION OBLIGATIONS IN FOREIGN JURISDICTIONS
The Company has defined benefit plans covering employees in Japan, South Korea, and France as required by local law. These plans are unfunded. A
summary of these combined plans are:
September 30,
2021
2020
Projected benefit obligation
$
12,176 
$
11,627 
Accumulated benefit obligation
9,006 
8,680 
Pension cost included in Accumulated other comprehensive income (loss), net of tax
(927)
(764)
Weighted average discount rate
1.32 %
1.32 %
Weighted average rate of increases in future compensation levels
2.96 %
3.01 %
60

INDEX
Benefit costs for the combined plans were $1,812, $1,403 and $1,345 in fiscal years 2021, 2020 and 2019, respectively, consisting primarily of service
costs. Net service costs are included in Cost of sales and Operating expenses, and all other costs are recorded in the Other expense, net in our Consolidated
Statements of (Loss) Income. Estimated future benefit payments are as follows:
Fiscal Year
Amount
2022
$
446 
2023
570 
2024
568 
2025
1,077 
2026
842 
2027 to 2031
5,190 
18. INCOME TAXES
(Loss) income before income taxes was as follows:
Year Ended September 30,
2021
2020
2019
Domestic
$
(129,814) $
94,002 $
(45,364)
Foreign
75,020 
79,345 
108,470 
Total
$
(54,794) $
173,347 $
63,106 
Taxes on income consisted of the following:
Year Ended September 30,
2021
2020
2019
U.S. federal and state:
Current
$
29,712 $
20,733 $
23,461 
Deferred
(39,609)
(7,048)
(23,182)
Total
(9,897)
13,685 
279 
Foreign:
Current
25,417 
21,053 
27,580 
Deferred
(1,737)
(4,219)
(3,968)
Total
23,680 
16,834 
23,612 
Total U.S. and foreign
$
13,783 $
30,519 $
23,891 
61

INDEX
The Provision for income taxes at our effective tax rate differed from the statutory rate as follows:
Year Ended September 30,
2021
2020
2019
Federal statutory rate
21.0 %
21.0 %
21.0 %
U.S. benefits from research and experimentation activities
3.4 
(1.5)
(2.9)
State taxes, net of federal effect
1.2 
1.1 
(4.7)
Foreign income at other than U.S. rates
(11.6)
1.7 
10.3 
Excess compensation
(3.3)
0.4 
6.4 
Share-based compensation
7.4 
(2.2)
(7.2)
U.S. tax reform
— 
— 
14.1 
Global Intangible Low Taxed Income ("GILTI")
1.5 
— 
3.1 
Foreign derived intangible income
14.4 
(3.4)
(3.9)
Change in reserve positions
(11.1)
1.9 
0.3 
Goodwill impairment
(47.5)
— 
— 
Other, net
(0.6)
(1.4)
1.4 
Provision for income taxes
(25.2)%
17.6 %
37.9 %
The negative effective tax rate during fiscal 2021 in relation to the loss before income taxes of $54,794 was primarily attributable to the unfavorable impact of
goodwill impairment charges related to PIM and wood treatment, partially offset by a tax benefit related to share-based compensation and foreign derived
intangible income.
The decrease in the effective tax rate during fiscal 2020 was primarily attributable to the absence of a discrete charge recorded in fiscal 2019 related to the
final regulations issued under the Tax Cuts and Jobs Act and the absence of unfavorable tax treatment of certain non-deductible costs related to the KMG
Acquisition. Additionally, the tax rate was favorably impacted by the final tax regulations issued in July 2020, which provided for a high-tax exception for those
jurisdictions subject to the GILTI tax, for which the Company qualified.
The following table presents the changes in the balance of gross unrecognized tax benefits during the last three fiscal years:
Balance September 30, 2018
$
1,434 
Additions for tax positions relating to the current fiscal year
271 
Additions for tax positions relating to prior fiscal years
9,839 
Balance September 30, 2019
11,544 
Additions for tax positions relating to the current fiscal year
4,691 
Additions for tax positions relating to prior fiscal years
140 
Reduction for tax positions relating to prior fiscal years
(1,337)
Balance September 30, 2020
15,038 
Additions for tax positions relating to the current fiscal year
5,288 
Additions for tax positions relating to prior fiscal years
2,162 
Reduction for tax positions relating to prior fiscal years
(113)
Balance September 30, 2021
$
22,375 
The entire balance of unrecognized tax benefits shown above as of September 30, 2021 and 2020, would affect our effective tax rate if recognized. Additions
for tax positions of $5,288 recorded in the current fiscal year are mainly due to liabilities related to mix of jurisdictional earnings from intercompany transactions.
Interest accrued and penalties charged to expense in fiscal years 2021, 2020 and 2019 was immaterial.
At September 30, 2021, the tax periods open to examination by the U.S. federal, state and local governments include fiscal years 2015 through 2021, and the
tax periods open to examination by foreign jurisdictions include fiscal years 2016 through 2021. We do not anticipate a significant change to the total amount of
unrecognized tax benefits within the next 12 months.
62

INDEX
Significant components of net deferred tax assets and liabilities were as follows:
September 30,
2021
2020
Deferred tax assets:
Employee benefits
$
7,877 $
8,920 
Inventory
6,469 
4,657 
Accrued expenses
3,121 
2,615 
Share-based compensation expense
5,686 
5,709 
Credit and other carryforwards
9,647 
5,803 
Lease obligations
6,858 
— 
Interest rate swap
3,732 
8,506 
Other
579 
1,238 
Valuation allowance
(2,880)
(2,948)
Total deferred tax assets
$
41,089 $
34,500 
Deferred tax liabilities:
Depreciation and amortization
$
94,425 $
131,237 
Lease right-of-use assets
6,689 
— 
Withholding on transition taxes
4,696 
4,156 
Other
3,396 
3,606 
Total deferred tax liabilities
$
109,206 $
138,999 
As of September 30, 2021, the Company had foreign and domestic net operating loss carryforwards (“NOLs”) of $28,243, which will expire over the period
between fiscal years 2022 and 2041. We have recorded a tax-effected valuation allowance of $2,880 against the deferred tax assets related to certain foreign and
U.S. federal and state NOLs, as well as on certain federal tax credit carryforwards. As of September 30, 2021, the Company had a U.S. federal and state tax credit
carryforward of $1,325, which will expire beginning in fiscal years 2022 through 2031.
19. COMMITMENTS AND CONTINGENCIES
LEGAL PROCEEDINGS AND OTHER CONTINGENCIES
We periodically become a party to legal proceedings, arbitrations, regulatory proceedings, inquiries and investigations (“contingencies”) arising in the ordinary
course of our business operations. The ultimate resolution of these contingencies is subject to significant uncertainty, and should we fail to prevail in any of them or
should several of them be resolved against us in the same reporting period, these matters could, individually or in the aggregate, be material to our Consolidated
Financial Statements. One of these contingencies, related to Star Lake Canal, which we assumed in connection with the KMG Acquisition, is discussed below. The
ultimate outcome of these matters, however, cannot be determined at this time, nor can the amount of any potential loss be reasonably estimated, and as a result
except where indicated no amounts have been recorded in our Consolidated Financial Statements.
In connection with the KMG Acquisition, through KMG-Bernuth as of the KMG Acquisition Date, we assumed a contingency related to the Star Lake Canal
Superfund Site near Beaumont, Texas (“Star Lake”). In 2014, prior to the KMG Acquisition, the United States Environmental Protection Agency (“EPA”) had
notified KMG-Bernuth that the EPA considered it to be a potentially responsible party under the Comprehensive Environmental Response, Compensation and
Liability Act of 1980, as amended, in connection with Star Lake. Although KMG-Bernuth has not conceded liability with respect to Star Lake, and has asserted to
the EPA and other parties its defenses to any liability, KMG-Bernuth and seven other cooperating parties entered into an agreement with the EPA in September
2016 to complete a remedial design of the remediation actions for the site and recorded a reserve at that time. In the fourth quarter of fiscal 2021, an additional
reserve for the anticipated remedial action phase, which will be performed under a separate future agreement, was established for $2,508, resulting in a total
remaining reserve for the remediation of $2,711 as of September 30, 2021.
63

INDEX
Separately, in fiscal 2019, a fire, which involved non-hazardous waste materials and caused no injuries, occurred at the warehouse of the wood treatment
facility of our subsidiary KMG-Bernuth, Inc. (“KMG-Bernuth”), in Tuscaloosa, Alabama, which processes pentachlorophenol (“penta”) for sale to customers in the
U.S. and Canada. KMG-Bernuth commenced and completed cleanup with oversight from certain local, state and federal authorities, and we recorded related
expense and for disposal of affected inventory in Cost of sales. We recorded expense of $26, $1,551 and $9,494 for the years ended September 30, 2021, 2020, and
2019, respectively. Although we believe we have completed cleanup efforts related to the fire incident, there are potential other related costs that cannot be
reasonably estimated as of this time due to the nature of federally-regulated penta-related requirements. In addition, we continue to work with our insurance
carriers on possible recovery of losses and costs related to the fire incident. We received $1,076 and $468 of insurance recoveries during the years ended
September 30, 2021 and 2020, respectively, which was recorded in Cost of sales. At this point we cannot reasonably estimate whether we will receive any
additional insurance recoveries, or if so, the amount of such recoveries.
We also may face other governmental or third-party claims, or otherwise incur costs, relating to cleanup of, or for injuries resulting from, contamination at
sites associated with this or other past and present operations. We accrue for environmental liabilities when a determination can be made that they are probable and
reasonably estimable. Other than as described herein, we are not involved in any legal proceedings that we believe could have a material impact on our
consolidated financial position, results of operations or cash flows.
In addition, our Company is subject to extensive federal, state and local laws, regulations and ordinances in the U.S. and in other countries. These regulatory
requirements relate to the use, generation, storage, handling, emission, transportation and discharge of certain hazardous materials, substances and waste into the
environment. The Company, including its KMG entities, manage Environmental, Health and Safety (“EHS”) matters related to protection of the environment and
human health, the cleanup of contaminated sites, the treatment, storage and disposal of wastes, and the emission of substances into the air or waterways, among
other EHS concerns. Governmental authorities can enforce compliance with their regulations, and violators may be subject to fines, injunctions or both. The
Company devotes significant financial resources to compliance, including costs for ongoing compliance.
Certain licenses, permits and product registrations are required for the Company’s products and operations in the U.S., Mexico and other countries in which it
does business. The licenses, permits and product registrations are subject to revocation, modification and renewal by governmental authorities. In the U.S. in
particular, producers and distributors of penta, which is a product manufactured and sold by KMG-Bernuth as part of the wood treatment business, are subject to
registration and notification requirements under the Federal Insecticide, Fungicide and Rodenticide Act and comparable state law in order to sell this product in the
U.S. Compliance with these requirements may have a significant effect on our business, financial condition and results of operations.
We are subject to contingencies, including litigation relating to EHS laws and regulations, commercial disputes and other matters. Certain of these
contingencies are discussed above and below. The ultimate resolution of these contingencies is subject to significant uncertainty, and should we fail to prevail in
any of them or should several of them be resolved against us in the same reporting period, these matters could, individually or in the aggregate, be material to the
Consolidated Financial Statements. The ultimate outcome of these matters cannot be determined at this time, nor can the amount of any potential loss be reasonably
estimated, and as a result except where indicated no amounts have been recorded in our Consolidated Financial Statements.
INDEMNIFICATION
In the normal course of business, we are a party to a variety of agreements pursuant to which we may be obligated to indemnify the other party with respect to
certain matters. Generally, these obligations arise in the context of agreements entered into by us, under which we customarily agree to hold the other party
harmless against losses arising from items such as a breach of certain representations and covenants including title to assets sold, certain intellectual property rights
and certain environmental matters. These terms are common in the industries in which we conduct business. In each of these circumstances, payment by us is
subject to certain monetary and other limitations and is conditioned on the other party making an adverse claim pursuant to the procedures specified in the
particular agreement, which typically allow us to challenge the other party’s claims.
We evaluate estimated losses for such indemnifications under the accounting standards related to contingencies and guarantees. We consider such factors as
the degree of probability of an unfavorable outcome and the ability to make a reasonable estimate of the amount of loss. To date, we have not experienced material
costs as a result of such obligations and, as of September 30, 2021, have not recorded any liabilities related to such indemnifications in our financial statements as
we do not believe the likelihood of such obligations is probable.
64

INDEX
PURCHASE OBLIGATIONS
Purchase obligations include take-or-pay arrangements with suppliers, and purchase orders and other obligations entered into in the normal course of business
regarding the purchase of goods and services. We have been operating under an abrasive particle supply agreement, the current term of which runs through
December 2022. As of September 30, 2021, purchase obligations include $11,030 of contractual commitments related to this agreement. In addition, we have a
purchase commitment of $15,133 to purchase non-water based carrier fluid.
20. (LOSS) EARNINGS PER SHARE
Year Ended September 30,
2021
2020
2019
Numerator:
Net (loss) income available to common shares
$
(68,577) $
142,828 $
39,215 
Denominator:
Weighted average common shares
29,126 
29,136 
28,571 
Weighted average effect of dilutive securities
— 
444 
523 
Diluted weighted average common shares
29,126 
29,580 
29,094 
(Loss) earnings per share:
Basic
$
(2.35) $
4.90 $
1.37 
Diluted
$
(2.35) $
4.83 $
1.35 
For the year ended September 30, 2021, no dilutive shares were calculated, as the inclusion of 416 dilutive potential common shares in a net loss situation
would be anti-dilutive.
Shares excluded from the calculation of Diluted (loss) earnings per share as their inclusion would have been anti-dilutive under the treasury stock method are
as follows:
Year Ended September 30,
2021
2020
2019
Outstanding stock options
25 
102 
196 
21. SEGMENT REPORTING
We identify our segments based on our management structure and the financial information used by our chief executive officer, who is our chief operating
decision maker, to assess segment performance and allocate resources among our operating units. We have the following two reportable segments:
ELECTRONIC MATERIALS
Electronic Materials includes products and solutions for the semiconductor industry and consists of our CMP slurries business, CMP pads business, electronic
chemicals business, and materials technologies business, which comprises the ITS business.
PERFORMANCE MATERIALS
Performance Materials consists of our PIM business, wood treatment business, and QED business.
Our chief operating decision maker evaluates segment performance based upon revenue and segment adjusted EBITDA. Segment adjusted EBITDA is defined
as earnings before interest, income taxes, depreciation and amortization, adjusted for certain items that affect comparability from period to period. These
adjustments include acquisition and integration-related expenses, certain costs related to the KMG-Bernuth warehouse fire, net of insurance recovery, the impact of
fair value adjustments to inventory acquired from KMG, impairment charges, net restructuring charges related to the wood treatment business, a charge for an
environmental accrual and costs related to the Pandemic, net of grants received. We exclude these items from earnings when presenting adjusted EBITDA because
we believe they are not indicative of a segment’s regular, ongoing operating performance. Adjusted EBITDA is also the basis of a performance metric for our fiscal
2021 Short-Term Incentive Program. In addition, our chief operating decision maker does not use assets by segment to evaluate performance or allocate resources,
and therefore, we do not disclose assets by segment.
65

INDEX
The two segments operate independently and serve different markets and customers, as a result there are no sales between segments. Revenue from external
customers by segment are as follows:
Year Ended September 30,
2021
2020
2019
Segment Revenue:
Electronic Materials:
CMP slurries
$
546,959 $
480,617 $
460,053 
Electronic chemicals
330,761 
316,253 
278,413 
CMP pads
95,335 
85,954 
94,585 
Materials technologies
11,657 
— 
— 
Total Electronic Materials
$
984,712 $
882,824 $
833,051 
Performance Materials:
PIM
$
106,810 $
141,503 $
140,553 
Wood treatment
73,188 
62,655 
31,898 
QED
35,121 
29,288 
32,194 
Total Performance Materials
$
215,119 $
233,446 $
204,645 
Total
$
1,199,831 $
1,116,270 $
1,037,696 
Capital expenditures by segment are as follows:
Year Ended September 30,
2021
2020
2019
Capital Expenditures:
Electronic Materials
$
28,272 $
26,536 $
40,166 
Performance Materials
4,094 
84,634 
16,367 
Corporate
9,381 
11,344 
5,663 
Total
$
41,747 $
122,514 $
62,196 
66

INDEX
Adjusted EBITDA by segment is as follows:
Year Ended September 30,
2021
2020
2019
Net (loss) income
$
(68,577) $
142,828 $
39,215 
Interest expense, net
38,360 
41,840 
43,335 
Income taxes
13,783 
30,519 
23,891 
Depreciation and amortization
132,170 
127,737 
98,592 
EBITDA
115,736 
342,924 
205,033 
Impairment charges
230,392 
2,314 
67,372 
Acquisition and integration-related expense
10,115 
10,852 
34,709 
Environmental accrual
2,508 
— 
— 
Costs related to KMG-Bernuth warehouse fire, net of insurance recovery
(1,050)
1,083 
9,905 
Costs related to the Pandemic, net of grants received
489 
849 
— 
Charge for fair value write-up of acquired inventory sold
— 
— 
14,869 
Net costs related to restructuring of the wood treatment business
123 
(221)
1,530 
Consolidated adjusted EBITDA
$
358,313 $
357,801 $
333,418 
Segment adjusted EBITDA:
Electronic Materials
$
323,827 $
299,037 $
294,902 
Performance Materials
87,961 
106,797 
91,372 
Unallocated corporate expenses
(53,475)
(48,033)
(52,856)
Consolidated adjusted EBITDA
$
358,313 $
357,801 $
333,418 
The unallocated portions of corporate functions, including finance, legal, human resources, information technology, and corporate development, are not
directly attributable to a reportable segment.
22. FINANCIAL INFORMATION BY GEOGRAPHIC AREA
Revenues are attributed to the U.S. and foreign regions based upon the customer location and not the geographic location from which our products were
shipped. Financial information by geographic area was as follows:
Year Ended September 30,
2021
2020
2019
Revenue:
North America
$
405,426 $
399,993 $
372,247 
Asia
631,904 
546,866 
515,833 
Europe, Middle East, and Africa
161,861 
169,099 
149,305 
South America
640 
312 
311 
Total
$
1,199,831 $
1,116,270 $
1,037,696 
Property, plant and equipment, net :
North America
$
246,413 $
250,895 $
133,682 
Asia
63,242 
66,872 
68,823 
Europe
45,116 
44,300 
74,313 
Total
$
354,771 $
362,067 $
276,818 
No individual countries other than the U.S. have material Property, plant and equipment
1
1.
67

INDEX
The following table shows revenue from sales to customers in foreign countries that accounted for more than 10% of our total revenue:
Year Ended September 30,
2021
2020
2019
Revenue:
China
$
157,876 $
113,570 
*
South Korea
143,737 
127,972 
135,844 
Taiwan
138,852 
133,059 
125,895 
* Not a country with more than 10% revenue.
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
The following table sets forth activities in our allowance for credit losses:
Allowance For Credit Losses
Balance At
Beginning of Year
Amount of Charge
(Benefit) To
Expenses
Deductions and
Adjustments
Balance At End of
Year
Year ended:
September 30, 2021
$
583 
$
76 
$
(132)
$
527 
September 30, 2020
2,377 
(1,122)
(672)
583 
September 30, 2019
1,900 
432 
45 
2,377 
The following table sets forth activities in our valuation allowance on certain deferred tax assets:
Valuation Allowance
Balance At
Beginning of Year
Amounts Charged
To Expenses
Deductions and
Adjustments
Balance At End of
Year
Year ended:
September 30, 2021
$
2,948 
$
472 
$
(540)
$
2,880 
September 30, 2020
2,565 
658 
(275)
2,948 
September 30, 2019
133 
2,432 
— 
2,565 
68

INDEX
MANAGEMENT RESPONSIBILITY
The accompanying Consolidated Financial Statements were prepared by the Company in conformity with accounting principles generally accepted in the
United States of America. The Company’s management is responsible for the integrity of these statements and of the underlying data, estimates and judgments.
The Company’s management establishes and maintains a system of internal accounting controls designed to provide reasonable assurance that its assets are
safeguarded from loss or unauthorized use, transactions are properly authorized and recorded, and that financial records can be relied upon for the preparation of
the Consolidated Financial Statements. This system includes written policies and procedures, a code of business conduct and an organizational structure that
provides for appropriate division of responsibility and the training of personnel. This system is monitored and evaluated on an ongoing basis by management in
conjunction with its internal audit function.
The Company’s management assesses the effectiveness of its internal control over financial reporting on an annual basis. In making this assessment,
management uses the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission in Internal Control – Integrated Framework
(2013). Management acknowledges, however, that all internal control systems, no matter how well designed, have inherent limitations and can provide only
reasonable assurance with respect to financial statement preparation and presentation. In addition, the Company’s independent registered public accounting firm
evaluates the Company’s internal control over financial reporting and performs such tests and other procedures as it deems necessary to reach and express an
opinion on the fairness of the financial statements.
In addition, the Audit Committee of the Board of Directors provides general oversight responsibility for the financial statements. Composed entirely of
Directors who are independent and not employees of the Company, the Committee meets periodically with the Company’s management, internal auditors and the
independent registered public accounting firm to review the quality of financial reporting and internal controls, as well as results of auditing efforts. The internal
auditors and independent registered public accounting firm have full and direct access to the Audit Committee, with and without management present.
/s/ David H. Li
David H. Li
Chief Executive Officer
/s/ Scott D. Beamer
Scott D. Beamer
Chief Financial Officer
/s/ Jeanette A. Press
Jeanette A. Press
Principal Accounting Officer
69

INDEX
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
Our management, with the participation of our Chief Executive Officer (CEO) and Chief Financial Officer (CFO), has conducted an evaluation of the
effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934, as
amended (the “Exchange Act”), as of September 30, 2021. Based on that evaluation, our CEO and CFO have concluded that our disclosure controls and procedures
were effective to provide that information required to be disclosed in our Exchange Act reports is recorded, processed, summarized and reported within the time
periods specified in the SEC’s rules and forms, and to provide that such information is accumulated and communicated to management, including the CEO and
CFO, as appropriate to allow timely decisions regarding required disclosure.
While we believe the present design of our disclosure controls and procedures is effective enough to make known to our senior management in a timely
fashion all material information concerning our business, we intend to continue to improve the design and effectiveness of our disclosure controls and procedures
to the extent necessary in the future to provide our senior management with timely access to such material information, and to correct any deficiencies that we may
discover in the future, as appropriate.
MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING
Our management is responsible for establishing and maintaining adequate internal control over financial reporting for the Company. Internal control over
financial reporting is defined in Rule 13a-15(f) or Rule 15d-15(f) promulgated under the Exchange Act as a process designed by, or under the supervision of, the
Company’s CEO and CFO, or persons performing similar functions, and effected by the Company’s board of directors, management and other personnel to provide
reasonable assurance regarding the reliability of our financial reporting and the preparation of financial statements for external purposes in accordance with
generally accepted accounting principles in the United States of America. Internal control over financial reporting includes policies and procedures that: pertain to
the maintenance of records that in reasonable detail accurately and fairly reflect our transactions and dispositions of the Company’s assets; provide reasonable
assurance that transactions are recorded as necessary for preparation of our financial statements in accordance with generally accepted accounting principles;
provide reasonable assurance that receipts and expenditures of Company assets are made in accordance with management authorization; and provide reasonable
assurance that unauthorized acquisition, use or disposition of Company assets that could have a material effect on our financial statements would be prevented or
detected on a timely basis. 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.
Based upon SEC staff guidance, management has excluded ITS from the scope of our assessment of internal control over financial reporting as of
September 30, 2021 because it was acquired by the Company in a business combination during fiscal 2021. As of September 30, 2021 and for the period from the
ITS Acquisition Date through September 30, 2021, total assets and total revenue of ITS represented less than 1% of the Company’s consolidated total assets and
total revenues.
Our management evaluated the effectiveness of our internal control over financial reporting based on the framework in Internal Control-Integrated
Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”). Based on this evaluation, our management
concluded that the Company’s internal control over financial reporting was effective as of September 30, 2021. The effectiveness of the Company’s internal control
over financial reporting as of September 30, 2021 has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in
their report which appears under Item 8 of this Annual Report on Form 10-K.
CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING
There were no changes in our internal control over financial reporting that occurred during our most recent fiscal quarter that have materially affected, or are
reasonably likely to materially affect, the Company’s internal control over financial reporting.
70

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INHERENT LIMITATIONS ON EFFECTIVENESS OF CONTROLS
Because of inherent limitations, our disclosure controls or our internal control over financial reporting may not prevent all errors and all fraud. A control
system, no matter how well conceived 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.
Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if
any, within the Company have been detected. These inherent limitations include the realities that judgments in decision-making can be faulty, and that breakdowns
can occur because of a simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more
people or by management override of the controls. The design of any system of controls also is based in part upon certain assumptions about the likelihood of
future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions; over time, controls may
become inadequate because of changes in conditions, or the degree of compliance with policies or procedures may deteriorate. Because of the inherent limitations
in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.
ITEM 9B. OTHER INFORMATION
None.
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PART III
ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE
The information required by Item 10 of Form 10-K with respect to identification of directors, the existence of a separately-designated standing audit
committee, identification of members of such committee, and identification of an audit committee financial expert, is incorporated by reference from the
information contained in the sections captioned “Election of Directors” and “Board Structure and Compensation” in our definitive Proxy Statement for the Annual
Meeting of Stockholders to be held March 9, 2022 (the “Proxy Statement”). In addition, for information with respect to the executive officers of our Company, see
“Information about our Executive Officers” in Part I of this Annual Report on Form 10-K and the section captioned “Section 16(a) Beneficial Ownership Reporting
Compliance” in the Proxy Statement. Information required by Item 405 of Regulation S-K is incorporated by reference from the information contained in the
section captioned “Section 16(a) Beneficial Ownership Reporting Compliance” in the Proxy Statement.
We have adopted a code of business conduct for all of our employees and directors, including our principal executive officer, other executive officers,
principal financial officer and senior financial personnel. A copy of our code of business conduct is available free of charge on our Company website at
www.cmcmaterials.com. We intend to post on our website any material changes to, or waivers from, our code of business conduct, if any, within two days of any
such event.
ITEM 11. EXECUTIVE COMPENSATION
The information required by Item 11 of Form 10-K is incorporated by reference from the information contained in the section captioned “Executive
Compensation” in the Proxy Statement.
ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS
EQUITY COMPENSATION PLAN INFORMATION
Shown below is information as of September 30, 2021, with respect to the shares of common stock that may be issued under CMC’s existing equity
compensation plans. 
Plan category
(a) Number of
securities to be issued
upon exercise of
outstanding options,
warrants and rights
(b) Weighted-
average exercise price
of outstanding options,
warrants and rights
(c) Number of securities
remaining available for future
issuance under equity
compensation plans (excluding
securities reflected in column
(a))
Equity compensation plans approved by
security holders (1)
1,010,486 
(2)
$
89.61 
(2)
2,361,281 
(3)
Equity compensation plans not approved by
security holders
— 
— 
— 
Total
1,010,486 
(2)
$
89.61 
(2)
2,361,281 
(3)
1. See Note 16 of “Notes to the Consolidated Financial Statements” of this Annual Report on Form 10-K for more information regarding the composition of our
equity compensation plans.
2. Column (a) includes 779,010 shares subject to outstanding nonqualified stock options, 146,960 shares that employees and non-employee directors have the right
to acquire upon the vesting of the equivalent RSUs that they have been awarded under our equity incentive plans, and 84,516 initial granted shares that certain
employees have the right to acquire upon the vesting of the performance-based restricted stock units (PSUs) that they have been awarded under our equity
incentive plans, which may be subject to downward or upward adjustment depending on the performance measures during the particular performance period
pursuant to the PSU award agreement. Column (b) excludes all of these RSUs and PSUs from the weighted-average exercise price. The weighted average term of
stock options is 6.04 years.
3. Column (c) includes 239,941 shares available for future issuance under the Employee Stock Purchase Plan.
The other information required by Item 12 of Form 10-K is incorporated by reference from the information contained in the section captioned “Stock
Ownership” in the Proxy Statement.
72

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ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS AND DIRECTOR INDEPENDENCE
The information required by Item 13 of Form 10-K is incorporated by reference from the information contained in the section captioned “Certain Relationships
and Related Transactions” in the Proxy Statement.
ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES
The information required by Item 14 of Form 10-K is incorporated by reference from the information contained in the section captioned “Fees of Independent
Auditors and Audit Committee Report” in the Proxy Statement.
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INDEX
PART IV
ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
(a) The following Financial Statements and Financial Statement Schedule are included in Item 8 herein:
1.
Financial Statements:
Report of Independent Registered Public Accounting Firm
Consolidated Statements of (Loss) Income for the years ended September 30, 2021, 2020 and 2019
Consolidated Statements of Comprehensive (Loss) Income for the years ended September 30, 2021, 2020 and 2019
Consolidated Balance Sheets at September 30, 2021 and 2020
Consolidated Statements of Cash Flows for the years ended September 30, 2021, 2020 and 2019
Consolidated Statements of Changes in Stockholders’ Equity for the years ended September 30, 2021, 2020 and 2019
Notes to the Consolidated Financial Statements
2.
Financial Statement Schedule: Schedule II – Valuation and Qualifying Accounts for the years ended September 30, 2021, 2020 and 2019
3.
Exhibits - The following exhibits are filed as part of, or incorporated by reference into, this Report on Form 10-K:
ITEM 16. FORM 10-K SUMMARY
None.
Exhibit No.
Description
Filed as an exhibit to, and incorporated by reference from
Form
File No.
Filing Date
2.1
Agreement and Plan of Merger, dated as of August 14, 2018, by and among
KMG Chemicals, Inc., Cabot Microelectronics Corporation, and Cobalt
Merger Sub Corporation.
8-K
000-30205
August 17, 2018
3.2
(Fourth) Amended and Restated Bylaws of CMC Materials, Inc.
8-K
000-30205
October 1, 2020
3.3
(Second) Amended and Restated Certificate of Incorporation of CMC
Materials, Inc.
8-K
000-30205
October 1, 2020
4.1
Form of CMC Materials, Inc. Common Stock Certificate.
10-K
000-30205
November 17, 2020
4.2
Description of the Company’s Securities.
10-K
000-30205
November 17, 2020
10.1
CMC Materials, Inc. 2007 Employee Stock Purchase Plan, as Amended and
Restated September 23, 2013.*
10-K
000-30205
November 17, 2020
10.2
Form of Amended and Restated Change in Control Severance Protection
Agreement.**
10-K
000-30205
November 25, 2008
10.3
Directors’ Deferred Compensation Plan, as Amended and Restated February
25, 2021.*
10-Q
000-30205
May 6, 2021
10.4
Form of Deposit Share Agreement.***
10.5
Adoption Agreement, as amended September 23, 2008, of Cabot
Microelectronics Corporation Supplemental Employee Retirement Plan.*
10-K
000-30205
November 25, 2008
10.6
Directors’ Cash Compensation Umbrella Program.*
10-K
000-30205
November 17, 2020
10.7
CMC Materials, Inc. Supplemental Employee Retirement Plan, as
amended.*
10-K
000-30205
November 25, 2008
10.8
CMC Materials, Inc. 2012 Omnibus Incentive Plan, as amended effective
March 7, 2017. *
10-K
000-30205
November 17, 2020
74

INDEX
10.9
Form of Cabot Microelectronics Corporation 2012 Omnibus Incentive Plan
Non-Qualified Stock Option Grant Agreement (employees (including
executive officers)).*
10-Q
000-30205
February 8, 2013
10.10
Form of Cabot Microelectronics Corporation 2012 Omnibus Incentive Plan
Non-Qualified Stock Option Grant Agreement (non-employee directors).*
10-Q
000-30205
August 8, 2012
10.11
Cabot Microelectronics Corporation 2012 Omnibus Incentive Plan Fiscal Year
20[__] Restricted Unit Award Agreement for United States Employees*
10-Q
000-30205
February 8, 2016
10.12
Cabot Microelectronics Corporation 2012 Omnibus Incentive Plan Fiscal Year
20[   ] Non-Qualified Stock Option Award Agreement for United States
Employees*
10-Q
000-30205
February 7, 2018
10.13
Cabot Microelectronics Corporation 2012 Omnibus Incentive Plan Fiscal Year
20[   ] Restricted Stock Unit Award Agreement for United States Employees*
10-Q
000-30205
February 7, 2018
10.14
Cabot Microelectronics Corporation 2012 Omnibus Incentive Plan Fiscal Year
20[ ] Performance Share Unit Award Agreement for United States
Employees*
10-Q
000-30205
February 7, 2018
10.15
CMC Materials, Inc. 2021 Omnibus Incentive Plan.*
10.16
Form of CMC Materials, Inc. 2021 Omnibus Incentive Plan Non-Employee
Director Annual Non-Qualified Stock Option Grant Agreement.*
10-Q
000-30205
May 6, 2021
10.17
Form of CMC Materials, Inc. 2021 Omnibus Incentive Plan Non-Employee
Director Annual Restricted Stock Unit Award Agreement.*
10-Q
000-30205
May 6, 2021
10.18
Form of CMC Materials, Inc. 2021 Omnibus Incentive Plan Restricted Stock
Unit Award Agreement (non-employee directors).*
10-Q
000-30205
August 5, 2021
10.19
Form of CMC Materials, Inc. 2021 Omnibus Incentive Plan Restricted Stock
Award Agreement - 202[ ] Deposit Share Award*
10.20
Employment Offer Letter dated December 12, 2014 (David H. Li).*
10-Q
000-30205
February 6, 2015
10.21
CMC Materials, Inc. Short Term Incentive Program*
10.22
Credit Agreement, dated as of November 15, 2018, by and among CMC
Materials, Inc., the lenders party thereto and JPMorgan Chase Bank, N.A., as
administrative agent.
10-Q
000-30205
February 4, 2021
10.23
Amendment No. 1, dated December 20, 2019, to Credit Agreement, dated
November 15, 2018, by and among Cabot Microelectronics Corporation, the
lenders party thereto and JPMorgan Chas Bank, N.A., as administrative agent.
8-K
000-30205
December 24, 2019
10.24
Incremental Assumption Agreement and Refinancing Amendment No. 2,
dated as of July 2, 2021, to Credit Agreement, dated as of November 15, 2018,
by and among CMC Materials, Inc., the lenders party thereto and JPMorgan
Chase Bank, N.A., as administrative agent.
8-K
000-30205
July 6, 2021
21.1
Subsidiaries of CMC Materials, Inc.
23.1
Consent of Independent Registered Public Accounting Firm.
24.1
Power of Attorney.
31.1
Certification of Chief Executive Officer as adopted pursuant to Section 302 of
the Sarbanes-Oxley Act of 2002.
31.2
Certification of Chief Financial Officer as adopted pursuant to Section 302 of
the Sarbanes-Oxley Act of 2002.
75

INDEX
32.1
Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section
906 of the Sarbanes-Oxley Act of 2002.
101.INS
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.
101.SCH
XBRL Taxonomy Extension Schema
101.CAL
XBRL Taxonomy Extension Calculation Linkbase
101.DEF
XBRL Taxonomy Extension Definition Linkbase
101.LAB
XBRL Taxonomy Extension Label Linkbase
101.PRE
XBRL Taxonomy Extension Presentation Linkbase
104
Cover Page Interactive Data File - The Cover Page Interactive Data File does
not appear in the Interactive Data File because its XBRL tags are embedded
within the Inline XBRL document.
* Management contract, or compensatory plan or arrangement.
**
Substantially similar change in control severance protection agreements have been entered into with David H. Li, Scott D. Beamer, H. Carol
Bernstein, Eleanor K. Thorp, Jeffrey M. Dysard, Colleen E. Mumford, Jeanette A. Press, and Daniel D. Woodland, with differences only in the
amount of payments and benefits to be received by such persons.
***
Substantially similar deposit share agreements have been entered into with Scott D. Beamer, Jeffrey M. Dysard, David H. Li, Jeanette A.
Press, and Eleanor K. Thorp with differences only in the amount of initial deposit made and deposit shares purchased by such persons.
76

INDEX
SIGNATURES
Pursuant to the requirements of section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed
on its behalf by the undersigned thereunto duly authorized:
CMC MATERIALS, INC.
Date: November 12, 2021
/s/ DAVID H. LI
David H. Li 
President and Chief Executive Officer 
[Principal Executive Officer]
Date: November 12, 2021
/s/ SCOTT D BEAMER
Scott D. Beamer 
Vice President and Chief Financial Officer 
[Principal Financial Officer]
Date: November 12, 2021
/s/ JEANETTE A. PRESS
Jeanette A. Press 
Corporate Controller 
[Principal Accounting Officer]
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this report has been signed below by the following persons on behalf of the
registrant and in the capacities and on the dates indicated:
Date: November 12, 2021
/s/ WILLIAM P. NOGLOWS*
William P. Noglows 
Chairman of the Board 
[Director]
Date: November 12, 2021
/s/ DAVID H. LI
David H. Li 
President and Chief Executive Officer 
[Director]
Date: November 12, 2021
/s/ RICHARD S. HILL*
Richard S. Hill 
[Director]
Date: November 12, 2021
/s/ BARBARA A. KLEIN*
Barbara A. Klein 
[Director]
Date: November 12, 2021
/s/ PAUL J. REILLY*
Paul J. Reilly 
[Director]
Date: November 12, 2021
/s/ ANNE K. ROBY*
Anne K. Roby 
[Director]
Date: November 12, 2021
/s/ SUSAN M. WHITNEY*
Susan M. Whitney 
[Director]
Date: November 12, 2021
/s/ GEOFFREY WILD*
Geoffrey Wild 
[Director]
*
by H. Carol Bernstein as Attorney-in-fact pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended.
77

CMC Materials, Inc.
2021 Omnibus Incentive Plan
202[x] Deposit Share Agreement
    THIS DEPOSIT SHARE AGREEMENT (the “Agreement”) is made and entered into this ______________ day of ______________, 202[x], (the
“Effective Date”) by and between CMC Materials, Inc. (the “Company”) and __________________________ (the “Participant”).
STATEMENT OF PURPOSE
    The Company has adopted the CMC  Materials,  Inc.  2021 Omnibus  Incentive  Plan (the  “Plan”)  for  the benefit  of  its eligible employees.  The
Participant is an employee of the Company who is eligible to participate under the Plan, and who desires to participate in the Plan pursuant to the
terms and conditions of this Agreement, the Plan Restricted Stock Agreement-202[x] Deposit Share Award (the “Award Agreement”), and the Plan.
    NOW, THEREFORE, in consideration of the mutual covenants herein contained, the Company and the Participant hereby agree as follows:
1.    Election to Participate. The Participant hereby elects to participate in the Plan by means of his/her execution of this Agreement.
2.    Bonus Income. The Participant hereby elects to pay to the Company, via personal check or other means acceptable to the Company on
or by the Effective Date, the following portion of his/her annual bonus amount that was paid to the Participant on December [x], 202[x]:
$         (the “Elected Bonus Amount”)
Any election made hereunder will be a one-time  election and will not remain in effect  for subsequent annual bonus payments.  The
amount of election shall not be less than $1,000.
3.    Deposit Share Awards. The Company will convert the Elected Bonus Amount to shares of Company common stock (the “Deposit
Shares”) issued to the Participant under the Plan at the Fair Market Value of such stock on December [x], 202[x], and will retain such
shares  subject  to  the  terms  of  this  Agreement,  the  Award  Agreement  and  the  Plan.  Such  shares  shall  remain  on  deposit  with  the
Company through December [x], 202[x+3+ (the three year anniversary of December [x], 202[x]) (the “Distribution Date”).
On December [x], 202[x+3], assuming Participant’s satisfaction of the terms of Section 2 of this Agreement, the Company will award to
the Participant the number of shares of Company common stock equal to fifty percent (50%) of the number of Deposit Shares (the
“Award Shares”) pursuant to the terms and restrictions of this Agreement, the Award Agreement and the Plan. Subject to the terms of
this Agreement, the Award Agreement and the Plan, the Deposit Shares will be returned on the Distribution Date and the Participant’s
Award  Shares  shall  become  fully  transferable  on  such  date,  December  [x],  202[x+3]  (the  three  year  anniversary  of  December  [x],
202[x])  (the  “Vesting  Date”),  assuming  that  the  Deposit  Shares  have  remained  on  deposit  with  the  Company  through  such  date,
Participant remains an employee of the Company, and complies with the terms of the Award Agreement and Plan. All Deposit Shares
will be returned to the Participant in the case of termination of employment.
The  Committee  has  the  exclusive  authority  to  elect  to  accelerate  distributions  and  vesting.  Each  Participant  shall  have  the  right  to
designate  one  or  more  beneficiaries  to  receive  a  distribution  in  the  event  of  the  Participant’s  death  by  filing  with  the  Company  a
Beneficiary Designation Form. The designated beneficiary or beneficiaries may be changed by a Participant at any time prior to the
Participant’s death by the execution and delivery of a new Beneficiary Designation Form. If no

beneficiary has been designated, or if no designated beneficiary survives the Participant, distributions will be made to the Participant’s
estate.
4.    Withdrawal of Deposit Shares. The Participant may request a Deposit Share withdrawal at any time, however, such withdrawal prior to
the Vesting Date will result in the forfeiture of the Award Shares.
5.    Incorporation of the Plan by Reference. The Plan, as it now exists and as it may be amended hereafter, and the Award Agreement are
incorporated herein and made a part of this Agreement. When used herein, the terms which are defined in the Plan shall have the
meaning  given  them  in  the  Plan.  The  Participant,  or  if  applicable  the  Participant’s  beneficiary,  shall  have  the  only  right  to  receive
benefits determined in accordance with the Plan and this Agreement. The Committee has the exclusive authority to interpret and apply
the provisions of the Plan, this Agreement, and the Award Agreement. Any interpretation of this Agreement by the Committee and any
decision made by it with respect to the Agreement are final and binding on all persons. To the extent that there is any conflict between
the terms of this Agreement, the Award Agreement or the Plan, the Plan shall govern. Capitalized terms used herein will have the same
meaning as under the Plan, unless stated otherwise.
6.    Assignment and Alienation of Benefits. The right of each Participant to any amount, benefit or payment hereunder will not, to the extent
permitted by law, be subject in any manner to attachment or other legal process for the debts of that Participant; and no amount, benefit
or payment will be subject to anticipation, alienation, sale, transfer, assignment or encumbrance except by will, by the laws of descent
and distribution, or by a Participant election to satisfy a property settlement agreement pursuant to a divorce.
7.    Waiver of Priority The Participant hereby expressly waives any priority he/she may have under any state or federal law with respect to
any claims he/she may have against the Company under the Plan beyond the rights he/she would have as a general creditor of the
Company.
8.    Governing Law. This Agreement shall be construed under the laws of the State of Delaware.
    IN WITNESS WHEREOF, the Company and the Participant have caused this instrument to be executed as of the day and year first above written.
PARTICIPANT
CMC MATERIALS, INC.
___________________________
By: _________________________________________
Title: ________________________

CMC MATERIALS, INC. 2021 OMNIBUS INCENTIVE PLAN
1.    PURPOSE
The purpose of this CMC Materials, Inc. 2021 Omnibus Incentive Plan (as may be amended from time to time, the “Plan”), is to advance
the interests of CMC Materials, Inc. (the “Company”) and its stockholders by enhancing the Company’s ability to (a) attract and retain employees,
directors,  consultants  and  advisors  who  are  in  a  position  to  make  significant  contributions  to  the  success  of  the  Company  and  its  subsidiaries;
(b) reward these individuals for these contributions; (c) encourage these individuals to take into account the short-term and long-term interests of the
Company  and  its  stockholders;  and  (d)  reward  individuals  who  have  contributed,  or  are  expected  to  contribute,  to  the  Company’s  success,  by
providing them equity and cash incentives (“Awards”).
2.    ADMINISTRATION
(a)  The  Plan  shall  be  administered  by  the  Compensation  Committee  of  the  Board  of  Directors  (the  “Board”)  of  the  Company  (the
“Committee”). The Committee shall hold meetings at such times as the Committee shall deem necessary for the proper administration of the Plan.
The Committee shall consist of at least two directors of the Company, each of whom shall be a “Non-Employee Director” as defined in Rule 16b-3(b)
(3) promulgated under Section 16 of the Securities Exchange Act of 1934, as amended (the “1934 Act”). Subject to applicable law, the Committee
may delegate its authority under the Plan to any other person or persons, unless such delegation would cause a grant to an individual subject to
Section 16 of the 1934 Act to fail to qualify for the exception under Rule 16b-3 thereunder. Subject to applicable law, any authority granted to the
Committee may be exercised by the full Board.
(b) No member of the Committee shall be liable for any action, failure to act, determination or interpretation made in good faith with respect to
this Plan or any transaction hereunder. The Company hereby agrees to indemnify each member of the Committee, and each officer or employee of
the  Company  acting  on  behalf  of  the  Committee,  for  all  costs  and  expenses  and,  to  the  fullest  extent  permitted  by  applicable  law,  any  liability
incurred in connection with defending against, responding to, negotiating for the settlement of or otherwise dealing with any claim, cause of action or
dispute of any kind arising in connection with any actions in administering this Plan or in authorizing or denying authorization to any transaction
hereunder.
(c) Subject to the express terms and conditions set forth herein, the Committee shall have the power from time to time:
(i) to determine the employees of the Company, its subsidiaries and affiliates (“Employees”), non-employee members of the board of
directors of the Company, its subsidiaries or affiliates (“Directors”), and consultants and advisors of the Company or any of its subsidiaries
(“Advisors”), to whom Awards shall be granted under the Plan (any such individual, a “Participant”) and the number of shares of Stock subject
to share-based Awards; to prescribe the terms and conditions (which need not be identical) of each such Award, including with respect to
determining exercise prices, vesting conditions, restrictions on transfer, and, to the extent consistent with the terms of the Plan, whether to
waive or modify such conditions (including to accelerate or waive vesting conditions); and to make any amendment or modification to any
Award Agreement (as defined herein) not inconsistent with the terms of the Plan;
(ii) to construe and interpret the Plan and the Awards granted hereunder; to establish, amend and revoke rules and regulations for the
administration of the Plan, including, but not limited to, correcting any defect or supplying any omission, or reconciling any inconsistency in the
Plan or in any Award Agreement, in the manner and to the extent it shall deem necessary or advisable; and otherwise to give full effect to the
Plan;
(iii) to exercise its discretion with respect to the powers and rights granted to it as set forth in the Plan;
(iv) to establish any “blackout” period that the Committee in its sole discretion deems necessary or advisable; and
(v) generally, to exercise such powers and to perform such acts as are deemed by it necessary or advisable to promote the best interests
of the Company with respect to the Plan.
All decisions and determinations of the Committee in the exercise of the foregoing powers shall be final, binding and conclusive upon
the Company and its subsidiaries and affiliates, all Participants, and all other persons claiming any interest herein. Decisions of the Committee need
not be uniform with respect to each Participant or Award.
3.    EFFECTIVE DATE AND TERM OF PLAN
1

The Plan shall be effective as of the date of its adoption by the Board, subject to approval by the Company’s stockholders (the date of
such approval by the Company’s stockholders, the “Effective Date”). No Award may be granted under the Plan after the tenth anniversary of the
Effective Date, but Awards previously granted may extend beyond that date.
4.    SHARES SUBJECT TO THE PLAN
(a) Awards under the Plan shall consist of Restricted Stock, RSUs, Options, SARs, Performance Shares, Performance Units, Other Stock-
Based Awards and Cash Incentive Awards (each as defined and described in Section 6 below).
(b) Subject to adjustment as provided in Section 8.6, the maximum number of shares of the Company’s common stock, par value $0.001 per
share (“Stock”), subject to Awards that may be delivered under the Plan is 2,125,000 shares of Stock, which is the sum of (i) 454,907 shares of
Stock,  and  (ii)  1,670,093  shares  of  Stock  that  are  available  under  the  Second  Amended  and  Restated  CMC  Materials,  Inc.  (f/k/a  Cabot
Microelectronics Corporation) 2012 Omnibus Incentive Plan, as amended effective March 7, 2017 (the “Prior Plan”), as of the Effective Date, plus
any shares of Stock that become available under the Prior Plan due to events such as forfeitures, cancellations, or expirations after the Effective
Date. No awards shall be granted under the Prior Plan following the Effective Date.
(c)  Any  Stock  covered  by  an  Award  which  is  forfeited,  canceled  or  expires  in  whole  or  in  part  shall  be  deemed  not  to  be  delivered  for
purposes of determining the maximum number of shares of Stock available for grants under the Plan. For purposes of determining the number of
shares of Stock available for grant under the Plan, (i) if the exercise price of an Option or Stock-settled SAR is satisfied by delivering shares of Stock
to the Company (by either actual delivery or by attestation), the total number of shares subject to such Option or Stock-settled SAR shall be deemed
delivered for purposes of determining the maximum number of shares of Stock available for delivery pursuant to Awards under the Plan; (ii) shares
subject to an Award of Options or Stock-settled SARs that are not delivered to a Participant because such shares are used to satisfy an applicable
tax withholding or exercise price obligation shall be deemed delivered hereunder and shall not again be available for delivery in connection with
Awards under the Plan; and (iii) shares subject to an Award under the Plan other than an Option or Stock-settled SAR that are not delivered to a
Participant because such shares are used to satisfy an applicable tax withholding obligation shall be deemed delivered hereunder and shall not
again be available for delivery in connection with Awards under the Plan. Shares purchased on the open market using the cash proceeds from the
exercise of an Option shall not be added to the shares of Stock available for delivery hereunder in determining the maximum number of shares of
Stock available for delivery pursuant to Awards under the Plan.
(d) In no event shall the Company issue ISOs (as defined herein) under the Plan covering more than 2,125,000 shares of Stock, subject to
adjustment as provided in Section 8.6 to the extent that such adjustment would not affect the qualification of such Awards as ISOs.
(e) No Director may receive compensation, including cash and equity-based compensation, in such capacity during any fiscal year with a
value that exceeds $1,000,000 (calculating the value of any equity-based Awards based on the grant date fair value of such Awards for financial
reporting purposes). For purposes of the preceding sentence, an equity-based Award shall be deemed received upon grant (and not upon vesting or
settlement) and any deferred cash compensation shall be deemed received when earned (and not when paid).
(f) Awards granted through the assumption of, or in substitution or exchange for, similar awards in connection with the acquisition of another
corporation or business entity (including, without limitation, Awards granted pursuant to Section 6.7) shall not be counted for purposes of applying
the limitations of this Section on the number of shares of Stock available for Awards generally or any particular kind of Award under the Plan.
(g)  Stock  delivered  under  the  Plan  may  be  either  from  authorized  but  unissued  Stock,  from  treasury  shares  or  from  shares  of  Stock
purchased in open-market transactions and private sales.
(h) Except in the case of substitute awards granted pursuant to Sections 4(f) or 6.7 and subject to the following sentence, Awards granted
under the Plan shall be subject to a minimum vesting period of one (1) year. Notwithstanding the foregoing, (i) the Committee may provide in an
Award  Agreement  or  following  the time  of  grant  that  the  vesting  of  an Award shall accelerate  in the  event  of  the  Participant’s  death,  Disability,
retirement, position elimination, or a termination other than for Cause, and (ii) the Committee may grant Awards covering five percent (5%) or fewer
of  the  total  number  of  shares  of  Stock  authorized  under  the  Plan  without  respect  to  the  above-described  minimum  vesting  requirement.
Notwithstanding the foregoing, with respect to Awards to Directors, the vesting of such Awards will be deemed to satisfy the one (1) year minimum
vesting requirement to the extent that the Awards vest on the earlier of the one (1) year
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anniversary of the date of grant and the next annual meeting of the Company’s stockholders that is at least fifty (50) weeks after the immediately
preceding year’s annual meeting.
5.    ELIGIBILITY AND PARTICIPATION
Employees, Directors, and Advisors, including prospective Employees, Directors or Advisors who have accepted offers of employment
or consultancy from the Company or its subsidiaries or affiliates, are eligible to receive Awards under the Plan. For purposes of the Plan, “Service”
means the provision of services to the Company or its subsidiaries or affiliates in the capacity of (a) an Employee, (b) a Director, or (c) an Advisor.
An “affiliate” for purposes of the Plan is an entity that controls, is controlled by or is under common control with, the Company. A “subsidiary” for
purposes of the Plan is an entity in which the Company owns, directly or indirectly, equity interests possessing a majority of the total combined
voting power of all classes of equity. The Committee will from time to time select the Employees, Directors and/or Advisors who are to be granted
Awards.
6.    TYPES OF AWARDS
6.1.    RESTRICTED STOCK AND RESTRICTED STOCK UNITS.
(a) Nature of Restricted Stock Awards. An Award of restricted stock entitles the recipient to acquire, at such time or times as the Committee
may determine, shares of Stock subject to the restrictions described in paragraph (e) below (“Restricted Stock”).
(b) Nature of RSU Awards. An Award of restricted stock units entitles the recipient to acquire, at such time or times as the Committee may
determine, shares of Stock subject to the restrictions described in paragraph (e) below or a cash equivalent value (“RSUs”). An RSU represents a
contingent right to receive a Share or an amount equivalent in value to a Share.
(c) Payment  for  Restricted  Stock  Awards.  The  Committee  may  require,  as  a  condition  to  an  Award  of  Restricted  Stock  or  RSUs,  that  a
Participant deliver to the Company a purchase price in any amount set by the Committee for such Restricted Stock or RSUs.
(d) Rights as a Stockholder. Unless otherwise determined by the Committee, a Participant who receives an Award of Restricted Stock will
have all the rights of a stockholder with respect to the Stock, including voting and dividend rights; provided, that dividends credited with respect to
any Award  shall be subject  to  the  same  time  and/or  performance-based  vesting  conditions  applicable to  such Award  and in such  case shall,  if
vested, be delivered or paid at the same time as such Award is delivered or paid (or forfeited  at the same time  as such Award is forfeited).  A
Participant who receives an Award of RSUs will not have voting or dividend rights with respect to the RSUs, it being understood that this sentence
shall not be construed as a limitation on the right to grant Dividend Equivalents (as defined herein) in connection with an Award of RSUs.
(e) Restrictions. The restrictions on each grant of Restricted Stock or RSUs will lapse at such time or times, and on such terms and conditions
(including upon meeting pre-established performance goals), as the Committee may specify. Except as otherwise specifically provided by the Plan
or by the Committee in any particular case, until these restrictions lapse, neither Restricted Stock nor RSUs may be sold, assigned, transferred,
pledged or otherwise encumbered or disposed of.
(f) Deferral. If a Participant so elects in accordance with such procedures as the Committee may specify from time to time, in accordance with
the  requirements  of  Section  409A  of  the  Internal  Revenue  Code  of  1986,  as  amended  (the  “Code”)  and  the  interpretive  guidance  thereunder
(“Section 409A”), the delivery of Restricted Stock and, if the deferral election so specifies, of the Dividend Equivalents with respect thereto, shall be
deferred until the date or dates specified in such election.
(g) Section  83(b)  Election.  If  a  Participant,  in  connection  with  the  acquisition  of  shares  of  Stock  under  the  Plan  or  otherwise,  makes  an
election under Section 83(b) of the Code, such Participant shall notify the Company within ten (10) days of filing notice of the election with the
Internal Revenue Service or other governmental authority, in addition to any filing and notification required pursuant to regulations issued under
Section 83(b) of the Code or any other applicable provision.
6.2.    OPTIONS.
(a) Nature of Options. An option is an Award entitling the recipient on exercise thereof to purchase shares of Stock at a specified exercise
price (an “Option”). Both incentive stock options (as defined in Section 422 of the Code) (“ISOs”)
3

and Options that are not ISOs may be granted under the Plan; provided that the Committee may award ISOs only to Employees.
(b) Exercise Price. The exercise price of an Option shall be determined by the Committee and set forth in an applicable Award Agreement;
provided, however, that the exercise price of an Option shall not be less than the Fair Market Value of a share of the Stock on the date the Option is
granted (110% of the Fair Market Value of a share of Stock on the date of grant in the case of an ISO granted to an Employee who owns (within the
meaning of Section 422(b)(6) of the Code) stock possessing more than ten percent of the total combined voting power of all classes of stock of the
Company, or of a parent or a subsidiary (such person, a “Ten Percent Stockholder”)). For purposes of this Plan, “Fair Market Value” on any date
means the closing sales price of the Stock on such date on the principal national securities exchange on which the Stock is listed or admitted to
trading, or, if the Stock is not so listed or admitted to trading, the average of the per share closing bid price and per share closing asked price on
such date as quoted on the National Association of Securities Dealers Automated Quotation System (“Nasdaq”) or such other market in which such
prices are regularly quoted, or, if there have been no published bid or asked quotations with respect to shares on such date, the Fair Market Value
shall be the value established by the Board in good faith and in accordance with Section 409A and, in the case of an ISO, Section 422 of the Code.
(c) Prohibition on Repricing. Except as provided in Section 8.6, any outstanding Option (i) shall not be repriced; (ii) shall not be canceled for
the purpose of reissuing the Option to the Participant at a lower exercise price; and (iii) in the case of an Option that, at the time of cancellation, has
an exercise price that exceeds the Fair Market Value of the underlying share of Stock, shall not be canceled for the purpose of exchanging the
Option for any other Award and/or cash payment or otherwise be subject to any action that would be treated, under the applicable exchange listing
standards  or  for  accounting  purposes,  as  a  “repricing”  of  such  Option,  unless  such  amendment,  cancellation,  or  action  is  approved  by  the
Company’s stockholders.
(d) Duration of Options. The latest date on which an Option may be exercised will be the tenth anniversary of the date the Option was granted
(five years in the case of an ISO granted to a Ten Percent Stockholder), or such earlier date as may have been specified by the Committee in the
Award Agreement at the time the Option was granted.
(e) Vesting and Exercise of Options. An Option will become vested and exercisable at such time or times, and on such terms and conditions
(including  upon  meeting  pre-established  performance  goals),  as  the  Committee  may  specify  in  the  Award  Agreement  for  such  Option.  The
Committee may at any time accelerate the time at which all or any part of the Option may be exercised.
(f) Exercise Procedures. Subject to the next following sentence, any exercise of an Option must be in writing, signed by the proper person
and delivered or mailed to the Company, accompanied by (i) any documents required by the Committee and (ii) payment in full for the number of
shares for which the Option is exercised. The exercise price for any Stock purchased pursuant to the exercise of an Option may, to the extent
permitted under the Award Agreement applicable to the Option or otherwise permitted by the Committee, be paid in the following forms: (1) cash;
(2) the transfer, either actually or by attestation, to the Company of shares of Stock that have been held by the Participant for at least six months (or
such lesser period as may be permitted by the Committee) prior to the exercise of the Option, such transfer to be upon such terms and conditions as
determined by the Committee; (3) by a “net exercise” arrangement, pursuant to which the number of shares of Stock issuable upon exercise of the
Option shall be reduced by the largest whole number of shares of Stock having an aggregate Fair Market Value that does not exceed the aggregate
exercise price (plus tax withholdings, if applicable); provided, however, that the Company shall accept a cash or other payment from the Participant
to the extent of any remaining balance of the aggregate exercise price not satisfied by such reduction in the number of whole shares of Stock to be
issued; (4) such other methods as the Committee makes available to Participants from time to time; or (5) a combination thereof. In addition, Options
may  be  exercised  through  a  registered  broker-dealer  pursuant  to  such  cashless  exercise  procedures  which  are,  from  time  to  time,  deemed
acceptable by the Committee. Any shares of Stock transferred to the Company as payment of the exercise price under an Option shall be valued at
their Fair Market Value on the day of exercise of such Option. If requested by the Committee, the Participant shall deliver the Award Agreement to
the Secretary of the Company who shall endorse thereon a notation of such exercise and return such Award Agreement to the Participant.  No
fractional shares of Stock (or cash in lieu thereof) shall be issued upon exercise of an Option, and the number of shares of Stock that may be
purchased upon exercise shall be rounded to the nearest number of whole shares. Notwithstanding any contrary provision of this Section 6.2, if, on
the date an outstanding Option would expire (other than due to a termination of Service for Cause (as defined below)), the exercise of the Option,
including by a “net exercise” or cashless exercise, would violate applicable securities laws or any insider trading policy maintained by the Company
from time to time, the expiration date applicable to the Option will be extended to a date that is the earlier of (i) thirty (30) calendar days after the
date the exercise of the Option would no longer violate applicable securities laws or any such insider trading policy and (ii) the expiration of the
original term of the Option.
4

(g) Exercise Limit. To the extent that the aggregate Fair Market Value (determined as of the date of the grant) of shares of Stock with respect
to which ISOs granted under the Plan and “incentive stock options” (within the meaning of Section 422 of the Code) granted under all other plans of
the Company or its subsidiaries (in either case determined without regard to this Section 6.2(f)) are exercisable by a Participant for the first time
during any calendar year exceeds $100,000, such ISOs shall be treated as Options that are not ISOs. In applying the limitation in the preceding
sentence in the case of multiple Options, Options that are intended to be ISOs shall be treated as Options which are not ISOs according to the order
in which they were granted, such that the most recently granted Options are first treated as Options that are not ISOs.
(h) ISO Exercise. An ISO must be exercised, if at all, within three months after the Participant’s termination of Service for a reason other than
death or Disability and within twelve months after the Participant’s termination of Service for death or Disability. For purposes of this Plan, “Disability”
is defined as permanent and total disability within the meaning of Section 22(e)(3) of the Code.
6.3.    STOCK APPRECIATION RIGHTS.
(a) Nature  of  Stock  Appreciation  Rights.  A  stock  appreciation  right  is  an  Award  entitling  the  recipient  to  receive  upon  exercise  thereof
payment of an amount determined by multiplying the excess of the Fair Market Value of a share of Stock on the date of exercise over the exercise
price of the SAR, by the number of shares of Stock with respect to which the SAR is exercised (a “SAR”). The payment upon exercise of a SAR may
be made in Stock, cash, or a combination of Stock and cash, as specified in the applicable Award Agreement.
(b) Exercise Price. The exercise price of a SAR shall be determined by the Committee and set forth in an applicable Award Agreement;
provided, however, that the exercise price of a SAR shall not be less than the Fair Market Value of a share of the Stock on the date the SAR is
granted.
(c) Prohibition on Repricing. Except as provided in Section 8.6, any outstanding SAR (i) shall not be repriced; (ii) shall not be canceled for the
purpose of reissuing the SAR to the Participant at a lower exercise price; and (iii) in the case of a SAR that, at the time of cancellation, has an
exercise price that exceeds the Fair Market Value of the underlying share of Stock, shall not be canceled for the purpose of exchanging the SAR for
any other Award and/or cash payment or otherwise be subject to any action that would be treated, under the applicable exchange listing standards
or  for  accounting  purposes,  as  a  “repricing”  of  such  SAR,  unless  such  amendment,  cancellation,  or  action  is  approved  by  the  Company’s
stockholders.
(d) Duration of SARs. The latest date on which a SAR may be exercised will be the tenth anniversary of the date the SAR was granted, or
such earlier date as may have been specified by the Committee in the Award Agreement at the time the SAR was granted.
(e) Exercise of SARs. A SAR will become exercisable at such time or times, and on such terms and conditions (including upon meeting pre-
established performance goals), as the Committee may specify in the Award Agreement for such SAR. The Committee may at any time accelerate
the time at which all or any part of the SAR may be exercised. Any exercise of a SAR must be in writing, signed by the proper person and delivered
or mailed to the Company, accompanied by any documents required by the Committee. If requested by the Committee, the Participant shall deliver
the Award Agreement to the Secretary of the Company who shall endorse thereon a notation of such exercise and return such Award Agreement to
the Participant. No fractional shares of Stock (or cash in lieu thereof) shall be issued upon exercise of a SAR, and the number of shares of Stock that
may be acquired upon exercise shall be rounded to the nearest number of whole shares.
6.4.    PERFORMANCE SHARES AND PERFORMANCE UNITS.
(a) Nature of Performance Shares and Performance Units. A performance share is an Award with an initial value equal to the Fair Market
Value of a share of Stock on the date of grant (a “Performance Share”), and a performance unit is an Award with an initial value determined by the
Committee  on  the  date  of  grant  (a  “Performance  Unit”),  in  each  case,  that  entitles  the  recipient  to  receive  payment  upon  the  attainment  of
performance goals and other terms and conditions determined by the Committee. Payment of Performance Shares or Performance Units may be
made in Stock, cash, or a combination of Stock and cash, as specified in the applicable Award Agreement.
(b) Performance  Goals.  The  Committee  shall  determine  the  number  of  Performance  Shares  or  Performance  Units,  the  length  of  the
performance period, and the other terms and conditions of each Award.
6.5.    CASH INCENTIVE AWARDS.
(a) Nature  of  Cash  Incentive  Awards.  A  cash  incentive  award  is  an  Award  denominated  in  cash  that  entitles  the  recipient  to  an  amount
(payable in cash or a share-based Award as described below) upon the attainment of performance
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goals and other terms and conditions determined by the Committee, which may include annual performance goals and periods (“Cash Incentive
Award”). A Cash Incentive Award may be satisfied in cash or, if the Committee so determines, by a grant of share-based Awards under the Plan with
such terms and conditions as the Committee determines, or a combination of cash or share-based Awards.
(b) Performance Goals. The Committee shall determine the amount of the Cash Incentive Award, the length of the performance period, and
the terms and conditions of each Cash Incentive Award, including the form of payment.
6.6.    OTHER-STOCK BASED AWARDS.
An “Other Stock-Based Award” is an Award that is not Restricted Stock, an RSU, an Option, a SAR, a Performance Share, a Performance
Unit, or a Cash Incentive Award, but that is either a share of Stock valued in whole or in part by reference to, or are otherwise based upon, Stock,
including, without limitation, unrestricted stock and convertible debentures.
6.7.    SUBSTITUTE AWARDS.
(a) In connection with any acquisition by the Company or any of its subsidiaries, the Committee may grant Awards to persons who became
Employees, Directors or Advisors in connection with such acquisition in substitution for equity incentives held by them in the seller or acquired entity.
In such case the Committee may set the prices and other terms of the substitute Awards at such amounts and in such manner as it, in its sole
discretion, deems appropriate and equitable or otherwise to provide such incentives as the Committee may determine are appropriate.
(b) Unless required by applicable law, any substitute Awards granted pursuant to Section 6.7 shall not count toward the share limitation set
forth in Section 4(b).
7.    EVENTS AFFECTING OUTSTANDING AWARDS
7.1.    TERMINATION OF SERVICE.
Unless otherwise set forth in an Award Agreement, an Award shall immediately terminate on the date a Participant’s Service terminates,
and (a) any Options or SARs held by a Participant shall not be exercisable and all rights of the Participant with respect thereto shall immediately
terminate, (b) any shares of Restricted Stock or RSUs with respect to which the restrictions have not lapsed shall be immediately forfeited, and
(c) any Performance Shares, Performance Units or Cash Incentive Awards shall be immediately forfeited.
7.2.    TERMINATION OF AWARD.
The Company may terminate, cancel, rescind, recover, or revoke an Award immediately under certain circumstances, including, but not
limited to a Participant’s:
(a) actions constituting “Cause”, which shall have the meaning provided under an employment, consulting or other agreement, including an
Award Agreement, between a Participant and the Company, or if there is no such meaning provided under such agreement or no such agreement,
shall  include,  but  not  be limited  to,  the:  (i)  conviction  of  or  entering  a plea of  guilty  or  nolo  contendere  with  respect  to  a  crime,  whether  or  not
connected with the Company; (ii) commission of any act of fraud with respect to the Company; (iii) theft, embezzlement or misappropriation of any
property of the Company; (iv) excessive absenteeism (other than as resulting from Disability); (v) failure to observe or comply with any Company
work rules, policies, procedures, guidelines or standards of conduct which the Company has adopted for the regulation of the general conduct of its
employees, as generally known to the employees of the Company or evidenced by the terms of any employee handbook, written memorandums or
written policy statements; (vi) continued willful refusal to carry out and perform the material duties and responsibilities of a Participant’s position,
excluding nonperformance resulting from Disability; or (vii) any other conduct or act determined to be injurious, detrimental or prejudicial to any
interest of the Company (in each case as determined in good faith by the Company);
(b) rendering of services for a competitor prior to, or within six (6) months after, the exercise of any Option or SAR or the termination of
Participant’s Service with the Company;
(c) unauthorized disclosure of any confidential/proprietary information of the Company to any third party;
(d) failure to comply with the Company’s policies regarding the identification, disclosure and protection of intellectual property;
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(e) violation of the Proprietary Rights Agreement/CMC Materials, Inc. Employee Confidentiality, Intellectual Property and Non-Competition
Agreement for Employees signed by the Participant (or any predecessor agreement thereto); or
(f) violation of the CMC Materials, Inc. Code of Business Conduct (or any predecessor Company policy thereto), including those provisions
related to financial reporting.
The existence of any such circumstances shall be determined in good faith by the Company.
In the event of any termination, cancellation, rescission, recovery, or revocation, the Participant shall return to the Company any Stock
received pursuant to an Award, or pay to the Company the amount of any gain realized on the sale of any such Stock, in such manner and on such
terms and conditions as may be required, and the Company shall be entitled to set off against the amount of any such gain any amount owed to the
Participant by the Company.
Notwithstanding the foregoing, this Section 7.2 shall not be applicable to any Participant following a Change in Control, other than to the
extent  the  applicable  Award  Agreement  or  other  terms  governing  an  individual  Award  provide  for  forfeiture  or  termination  upon  a  Participant’s
termination  of  Service  for  Cause.  Notwithstanding  anything  else  contained  herein,  following  a  Change  in  Control,  any  determination  by  the
Committee as to whether “Cause” exists shall be subject to de novo review.
7.3. CHANGE IN CONTROL. Unless otherwise set forth in an Award Agreement or another written agreement between the Company or a
subsidiary on the one hand, and a Participant on the other hand, in the event of a Change in Control, the following provisions will apply:
(a) the Committee may provide that any or all outstanding Awards shall be assumed and continued or an equivalent award substituted by the
Company’s successor or a parent or subsidiary of such successor in connection with such Change in Control transaction; provided, however, that if
within two (2) years following such Change in Control, a Participant’s employment is terminated by the Company or its successor without Cause or
the Participant resigns for “Good Reason,” to the extent that the Participant is subject to written agreement with the Company or a subsidiary that
contains a “Good Reason” definition, any Awards not previously vested shall immediately become vested and/or exercisable (and any applicable
performance goals shall be deemed achieved at the greater of (x) target or (y) actual performance through the date of such termination); and
(b) with respect to such outstanding Awards that are not assumed and continued or an equivalent award is not substituted by the Company’s
successor or a parent or subsidiary of such successor in connection with such Change in Control transaction, then any such Awards that have not
previously vested shall immediately become vested and/or exercisable (and any applicable performance goals shall be deemed achieved at the
greater of (x) target or (y) actual performance through the date of such Change in Control).
8.    GENERAL PROVISIONS
8.1.    DOCUMENTATION OF AWARDS.
Awards may be evidenced by written or electronic instruments prescribed by the Committee from time to time (each such instrument, an
“Award Agreement”). Award Agreements may be in the form of agreements, to be executed by both the Participant and the Company, or certificates,
letters or similar instruments, and may be provided in electronic form, acceptance of which will evidence agreement to the terms thereof and hereof.
8.2.    RIGHTS AS A STOCKHOLDER; DIVIDEND EQUIVALENTS.
(a) Rights  as  Stockholder.  Except  as  specifically  provided  by  the  Plan  or  an  Award  Agreement,  the  receipt  of  an  Award  will  not  give  a
Participant  rights  as  a  stockholder,  and  the  Participant  will  obtain  such  rights,  subject  to  any  limitations  imposed  by  the  Plan  or  the  Award
Agreement, only upon actual receipt of Stock.
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(b) Dividend Equivalents. The Committee may, on such conditions as it deems appropriate, provide in an Award Agreement that a Participant
will receive a benefit in lieu of cash dividends that would have been payable on any or all Stock subject to the Participant’s Award had such Stock
been outstanding. Without limitation, the Committee may provide for payment to the Participant of amounts representing dividends on such Award
(other than Options and SARS) (such amounts, “Dividend Equivalents”), either currently or in the future, or for the investment of such amounts on
behalf of the Participant (including in the form of additional Awards of the same type as the underlying Award giving rise to the Dividend Equivalent);
provided  that  the  Committee  shall  design  such  payment  to  be  exempt  from  or,  in  the  alternative,  to  comply  with,  Section  409A.  Any  Dividend
Equivalents credited with respect to any Award shall be subject to the same time and/or performance-based vesting conditions applicable to such
Award and in such case shall, if vested, be delivered or paid at the same time as such Award is delivered or paid (or forfeited at the same time as
such Award is forfeited). To the extent provided in an Award Agreement, reinvestment of dividend payments in additional Awards at the time of any
dividend payment shall only be permissible if sufficient shares of Stock are available under Section 4(b) for such reinvestment (taking into account
then-outstanding Awards). If sufficient shares of Stock are not available for such reinvestment, such reinvestment shall be made in the form of a
grant of RSUs equal in number to the shares of Stock that would have been obtained by such reinvestment, the terms of which RSUs shall provide
for settlement in cash and for Dividend Equivalent reinvestment in further RSUs on the terms contemplated by this Section 8.2(b).
8.3.    CONDITIONS ON DELIVERY OF STOCK.
The Company will not be obligated to deliver any shares of Stock, whether by electronic book entry or in certificate form, pursuant to the
Plan or to remove any restriction from shares of Stock previously delivered under the Plan (a) until all conditions of the Award have been satisfied or
removed, (b) until, in the opinion of the Company’s counsel, all applicable federal and state laws and regulations have been complied with, (c) if the
outstanding Stock is at the time listed on any stock exchange, until the shares to be delivered have been listed or authorized to be listed on such
exchange upon official notice of notice of issuance and (d) until all other legal matters in connection with the issuance and delivery of such shares
have been approved by the Company’s counsel. If the sale of Stock has not been registered under the Securities Act of 1933, as amended, the
Company may require, as a condition to exercise of the Award, such representations or agreements as counsel for the Company may consider
appropriate to avoid violation of such Act and may require that the certificates evidencing such Stock bear an appropriate legend restricting transfer.
8.4.    TAX WITHHOLDING.
(a) The Company may withhold from any payment made pursuant to an Award an amount as may be necessary and sufficient to satisfy all
federal, state, local, and other applicable tax withholding requirements (the “Withholding Requirements”).
(b) The Committee will have the right to require that the Participant or other appropriate person remit to the Company an amount sufficient to
satisfy the Withholding Requirements, or make other arrangements satisfactory to the Committee with regard to such requirements, prior to the
delivery of any Stock. If and to the extent that any such withholding is required, the Committee may permit the Participant or such other person to
elect at such time and in such manner as the Committee provides to have the Company hold back from the shares to be delivered, or to deliver to
the Company, Stock having a value calculated to satisfy the Withholding Requirements; provided, however, unless otherwise set forth in an Award
Agreement or subsequently determined by the Committee, with respect to a Participant subject to Section 16 of the Exchange Act, the withholding of
Shares  by  the  Company  or  any  of  its  Affiliates  to  satisfy  tax,  exercise  price  or  other  withholding  obligations  in  respect  of  an  Award  shall  be
mandatory. Notwithstanding anything herein to the contrary, the Committee may, in its sole discretion, permit a Participant to satisfy the Withholding
Requirements by tendering shares of Stock having a Fair Market Value equal to the amount required to be withheld or such other greater amount up
to the maximum statutory rate under applicable law, as applicable to such Participant, if such other greater amount would not result in adverse
financial  accounting  treatment,  as  determined  by  the  Committee  (including  in  connection  with  the  effectiveness  of  FASB  Accounting  Standards
Update 2016-09).
(c) With respect to the exercise of ISOs, the Committee may require as a condition of exercise that the person exercising the ISO agree (i) to
inform the Company promptly of any disposition of Stock received upon exercise of the ISO, and (ii) if the Company determines that it could be liable
for Withholding Requirements with respect to a disposition of the Stock received upon exercise, to give such security as the Committee deems
adequate to meet the potential liability of the Company for the Withholding Requirements and to augment such security from time to time in any
amount reasonably deemed necessary by the Committee to preserve the adequacy of such security.
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8.5.    NONTRANSFERABILITY OF AWARDS.
No Award shall be transferable by a Participant otherwise than by will or by the laws of descent and distribution or, except in the case of
an ISO, pursuant to a domestic relations order (within the meaning of Rule 16a-12 promulgated under the Exchange Act), and an Option or SAR
shall be exercisable during the lifetime of such Participant only by such Participant or such Participant’s executor or administrator or by the person or
persons to whom the Option or SAR is transferred by will or the applicable laws of descent and distribution (such person, the Participant’s “Legal
Representative”). Notwithstanding the foregoing sentence, the Committee may in a manner consistent with applicable law set forth in an Award
Agreement evidencing an Award (other than an ISO), or may otherwise provide, that the Award may be transferred to members of the Participant’s
immediate family, to trusts solely for the benefit of such immediate family members and to partnerships in which such family members and/or trusts
are  the  only  partners,  and  for  purposes  of  this  Plan,  such  a  transferee  of  an  Award  shall  be  deemed  to  be  the  Participant.  For  this  purpose,
“immediate family” shall refer only to the Participant’s spouse, parents, children, stepchildren and grandchildren and the spouses of such parents,
children,  stepchildren  and  grandchildren.  The  terms  of  an  Award  shall  be  final,  binding  and  conclusive  upon  the  beneficiaries,  executors,
administrators, heirs and successors of the Participant.
8.6.    ADJUSTMENTS IN THE EVENT OF CERTAIN TRANSACTIONS.
In the event of a merger, consolidation, acquisition of property or shares, stock rights offering, liquidation, disaffiliation of a subsidiary or
affiliate, or similar event affecting the Company or any of its subsidiaries (each, a “Corporate Transaction”), the Committee or the Board may in its
discretion make such substitutions or adjustments as it deems appropriate and equitable to (i) the aggregate number and kind of shares of Stock or
other securities reserved for issuance and delivery under the Plan, (ii) the various maximum limitations set forth in Section 4 upon certain types of
Awards and upon the grants to individuals of certain types of Awards, (iii) the number and kind of shares of Stock or other securities subject to
outstanding Awards; and (iv) the exercise price of outstanding Options and SARs. In the event of a stock dividend, stock split, reverse stock split,
separation, spinoff, reorganization, extra-ordinary dividend of cash or other property, share combination, or recapitalization or similar event affecting
the capital structure of the Company (each, a “Share Change”), the Committee or the Board shall make such substitutions or adjustments as it
deems appropriate and equitable to (A) the aggregate number and kind of shares of Stock or other securities reserved for issuance and delivery
under the Plan, (B) the various maximum limitations set forth in Section 4 upon certain types of Awards and upon the grants to individuals of certain
types  of  Awards,  (C)  the  number  and  kind  of  shares  of  Stock  or  other  securities  subject  to  outstanding  Awards;  and  (D)  the  exercise  price  of
outstanding Options and SARs. In the case of Corporate Transactions,  such adjustments  may include, without limitation,  (1) the cancellation of
outstanding Awards in exchange for payments of cash, property or a combination thereof having an aggregate value equal to the value of such
Awards, as determined by the Committee or the Board in its sole discretion (it being understood that in the case of a Corporate Transaction with
respect to which stockholders of Stock receive consideration other than publicly traded equity securities of the ultimate surviving entity, any such
determination by the Committee that the value of an Option or SAR shall for this purpose be deemed to equal the excess, if any, of the value of the
consideration  being  paid  for  each  share  of  Stock  pursuant  to  such  Corporate  Transaction  over  the  exercise  price  of  such  Option  or  SAR  shall
conclusively be deemed valid); provided, that in the event of the cancellation of such Awards pursuant to this clause (1), the Awards shall vest in full
immediately prior to the consummation of such Corporate Transaction; (2) the substitution of other property (including, without limitation, cash or
other securities of the Company and securities of entities other than the Company) for the shares of Stock subject to outstanding Awards; and (3) in
connection with any disaffiliation of a subsidiary or affiliate, arranging for the assumption of Awards, or replacement of Awards with new awards
based on other property or other securities (including, without limitation, other securities of the Company and securities of entities other than the
Company),  by  the  affected  subsidiary,  affiliate,  or  division  or  by  the  entity  that  controls  such  subsidiary,  affiliate,  or  division  following  such
disaffiliation of a subsidiary or affiliate (as well as any corresponding adjustments to Awards that remain based upon Company securities).
8.7.    PARTICIPANT’S RIGHTS.
Neither the adoption of the Plan nor the grant of Awards will confer upon any person any right to continued employment or Service with the
Company or any subsidiary or affiliate or affect in any way the right of the Company any subsidiary or affiliate to terminate an employment or Service
relationship at any time.
8.8.    SUCCESSORS.
All obligations  of the  Company  under  the Plan or  any Award  Agreement  will be binding on any  successor  to  the  Company,  whether  the
existence of the successor results from a direct or indirect purchase of all or substantially all of the Company’s shares, or a merger, consolidation, or
otherwise.
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8.9.    SEVERABILITY.
If any provision of the Plan is held illegal or invalid for any reason, the illegality or invalidity will not affect the remaining parts of the Plan, and
the Plan will be construed and enforced as if the illegal or invalid provision had not been included.
8.10.    REQUIREMENTS OF LAW.
The granting  of  Awards  and the issuance  of  Share  and/or  cash payouts  under  the Plan will be  subject  to  all applicable  laws,  rules,  and
regulations, and to any approvals by governmental agencies or national securities exchanges as may be required.
8.11.    SECURITIES LAW COMPLIANCE.
As to any individual who is, on the relevant date, an officer, director or ten percent beneficial owner of any class of the Company’s equity
securities that is registered pursuant to Section 12 of the Exchange Act, all as defined under Section 16 of the Exchange Act, transactions under this
Plan are intended to comply with all applicable conditions of Rule 16b-3 under the Exchange Act, or any successor rule. To the extent any provision
of the Plan or action by the Board fails to so comply, it will be deemed null and void, to the extent permitted by law and deemed advisable by the
Board.
8.12.    AWARDS TO FOREIGN NATIONALS AND EMPLOYEES OUTSIDE THE UNITED STATES.
To the extent the Board deems it necessary, appropriate or desirable to comply with foreign law or practice and to further the purposes of this
Plan, the Board may, without amending the Plan, (i) establish rules applicable to Awards granted to Participants who are foreign nationals, are
employed or providing Service outside the United States, or both, including rules that differ from those set forth in this Plan, and (ii) grant Awards to
such Participants in accordance with those rules that would require the application of the law of any other jurisdiction.
8.13.    GOVERNING LAW.
To the extent not preempted by federal law, the Plan and all agreements hereunder will be construed and enforced in accordance with, and
governed by, the laws of the State of Delaware, without giving effect to its conflicts of laws principles that would require the application of the law of
any other  jurisdiction.  All references  to statutory  provisions  and related regulatory  provisions  used herein shall include any similar  or successor
provisions. The jurisdiction and venue for any disputes arising under, or any action brought to enforce (or otherwise relating to), this Plan shall be
exclusively in the courts in the State of Illinois, County of Cook, including the Federal Courts located therein (should Federal jurisdiction exist).
8.14.    SECTION 409A COMPLIANCE.
(a) Notwithstanding any provision of this Plan to the contrary, all Awards made under this Plan are intended to be exempt from or, in the
alternative, comply with, Section 409A and the interpretive guidance thereunder, including the exceptions for stock rights and short-term deferrals.
The Plan shall be construed, administered and interpreted in accordance with such intent. Each payment under an Award shall be treated as a
separate payment for purposes of Section 409A. With respect to a Cash Incentive Award, the cash portion will be paid, and the grant of any portion
payable as a share-based Award will be awarded, not later than March 15 of the calendar year following the calendar year in which the applicable
performance period ended. In no event may a Participant, directly or indirectly, designate the calendar year of any payment to be made under any
Award that constitutes nonqualified deferred compensation subject to Section 409A of the Code.
(b) If a Participant is a “specified employee” (as such term is defined for purposes of Section 409A) at the time of his or her termination of
Service, no amount that is nonqualified deferred compensation subject to Section 409A and that becomes payable by reason of such termination of
Service shall be paid to the Participant (or in the event of the Participant’s death, the Participant’s representative or estate) before the earlier of
(i) the first business day after the date that is six months following the date of the Participant’s termination of Service, and (ii) within 30 days following
the date of the Participant’s death. For purposes of Section 409A, a termination of Service shall be deemed to occur only if it is a “separation from
service” within the meaning of Section 409A, and references in the Plan and any Award Agreement to “termination of Service” or similar terms shall
mean a “separation from service.” If any Award is or becomes subject to Section 409A, unless the applicable Award Agreement provides otherwise,
such Award shall be payable upon the Participant’s “separation from service” within the meaning of Section 409A.
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(c) With respect to any Award that constitutes “nonqualified deferred compensation” within the meaning of Section 409A, a Change in Control
shall not constitute a settlement or distribution event with respect to such Award, or an event that otherwise changes the timing of settlement or
distribution  of  such  Award,  unless  the  Change  in  Control  also  constitutes  an  event  described  in  Section  409A(a)(2)(v)  of  the  Code  and  the
regulations thereto. For the avoidance of doubt, the preceding sentence shall have no bearing on whether an Award vests pursuant to the terms of
the Plan or the applicable Award.
(d)  Any  adjustments  made  pursuant  to  Section  8.6  to  Awards  that  are  subject  to  Section  409A  shall  be  made  in  compliance  with  the
requirements of Section 409A, and any adjustments made pursuant to Section 8.6 to Awards that are not subject to Section 409A shall be made in
such a manner as to ensure that after such adjustment, the Awards either (i) continue not to be subject to Section 409A or (ii) comply with the
requirements of Section 409A.
8.15.    ERRONEOUSLY AWARDED COMPENSATION.
All Awards shall be subject to any incentive compensation recoupment or “clawback” policy established and amended from time to time by
the  Company,  including  any  such  policy  established  to  comply  with  the  Dodd-Frank  Wall  Street  Reform  and  Consumer  Protection  Act,  or  as
determined  by  the  Company  from  time  to  time  to  comport  with  good  corporate  governance  practices.  Notwithstanding  the  foregoing,  subject  to
applicable law, this Section 8.15 shall not be applicable to any Participant following a Change in Control.
8.16.    UNFUNDED PLAN.
It is presently intended that the Plan shall be unfunded. Except for reserving a sufficient number of authorized shares of Stock, to the extent
required by law to meet the requirements of the Plan, the Company shall not be required to establish any special or separate fund or to make any
other segregation of assets to assure the delivery of shares of Stock relating to Awards granted pursuant to the Plan.
9.    DISCONTINUANCE, CANCELLATION, AMENDMENT AND TERMINATION
(a) The Committee may at any time discontinue granting Awards under the Plan. The Board or the Committee may at any time or times
amend the Plan or any outstanding  Award; provided that  no such  amendment  (other  than  an  amendment  made  to  comply  with  applicable  law,
including without limitation Section 409A, stock exchange listing standards or accounting rules) would materially and adversely affect the rights of a
Participant with respect to a previously granted Award without such Participant’s consent. The Committee may at any time terminate the Plan as to
any further grants of Awards. Except to the extent expressly required or permitted by the Plan, no amendment to the Plan or any outstanding Award
will, without the approval of the stockholders of the Company, (a) increase the maximum number of shares available under the Plan, (b) extend the
time  within  which  Awards  may  be  granted  under  the  Plan,  (c)  permit  the  Company  to  reprice  any  outstanding  Option  or  SAR  under  the  Plan,
(d) otherwise effect an action that would require stockholder approval under applicable law or the listing standards of Nasdaq or (e) amend the
provisions of this Section 9, and no amendment or termination of the Plan may materially and adversely affect the rights of any Participant (without
his or her consent) under any Award previously granted.
(b)  Subject  to the  immediately  preceding  paragraph,  the Committee,  to the  extent  it deems  necessary  or  advisable  in its  sole discretion,
reserves the right, but shall not be required, to unilaterally amend or modify the Plan and any Award granted under the Plan so that the Award
qualifies for exemption from or complies with Section 409A; provided, however, that the Committee makes no representations that Awards granted
under the Plan shall be exempt from or comply with Section 409A and makes no undertaking to preclude Section 409A or additional tax, interest or
penalties thereunder from applying to Awards granted under the Plan.
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APPENDIX A TO 2021 OMNIBUS INCENTIVE PLAN
A “Change in Control” shall be deemed to have occurred if:
(a) any “person” as such term is used in Sections 13(d) and 14(d) of the 1934 Act (a “Person”) (other than (i) the Company, (ii) any subsidiary
of the Company, (iii) any trustee or other fiduciary holding securities under an employee benefit plan of the Company or of any subsidiary of the
Company,  or  (iv)  any  company  owned,  directly  or  indirectly,  by  the  stockholders  of  the  Company  in  substantially  the  same  proportions  as  their
ownership of stock of the Company), is or becomes the “beneficial owner” (as defined in Section 13(d) of the 1934 Act), together with all “Affiliates”
and “Associates” (as such terms are used in Rule 12b-2 of the General Rules and Regulations under the 1934 Act) of such person, directly or
indirectly, of securities of the Company representing thirty percent (30%) or more of either (1) the then outstanding shares of Stock of the Company
(the “Outstanding Company Common Stock”) or (2) the combined voting power of the then outstanding voting securities of the Company entitled to
vote  generally  in  the  election  of  directors  (the  “Outstanding  Company  Voting  Securities”); provided that  this  paragraph  shall  not  apply  to  an
acquisition directly from the Company or to an acquisition incident to a Business Combination that satisfies exceptions (i) through - (iii) of paragraph
(b) below;
(b) the consummation of a reorganization, merger, statutory share exchange or consolidation or similar transaction involving the Company or
any of its subsidiaries or sale or other disposition of all or substantially all of the assets of the Company ,or the acquisition of assets or securities of
another entity by the Company or any of its subsidiaries (a “Business Combination”), in each case, unless, following such Business Combination,
(i) all or substantially all of the individuals and entities who were the beneficial owners of the Outstanding Company Common Stock and Outstanding
Company Voting Securities immediately prior to such Business Combination beneficially own, directly or indirectly, more than sixty percent (60%) of,
respectively, the then outstanding shares of common stock (or, for a noncorporate entity, equivalent securities) and the combined voting power of
the then outstanding voting securities entitled to vote generally in the election of directors (or, for a noncorporate entity, equivalent securities), as the
case may be, of the entity resulting from such Business Combination (including an entity that, as a result of such transaction, owns the Company or
all or substantially all of the Company’s assets either directly or through one or more subsidiaries) in substantially the same proportions as their
ownership,  immediately  prior  to  such  Business  Combination  of  the  Outstanding  Company  Common  Stock  and  Outstanding  Company  Voting
Securities, as the case may be; (ii) no Person (excluding any entity resulting from such Business Combination or any employee benefit plan (or
related trust) of the Company or such entity resulting from such Business Combination) beneficially owns, directly or indirectly, thirty percent (30%)
or more of, respectively, the then outstanding shares of common stock (or, for a noncorporate entity, equivalent securities) of the entity resulting
from such Business Combination or the combined voting power of the then outstanding voting securities of such entity except to the extent that such
ownership existed prior to the Business Combination; and (iii) at least a majority of the members of the board of directors (or, for a noncorporate
entity, equivalent body or committee) of the entity resulting from such Business Combination were Incumbent Directors (as defined below) at the
time of the execution of the initial agreement, or of the action of the Board, providing for such Business Combination;
(c) during any period of two consecutive years from and after the Effective Date), individuals who as of the Effective Date constitute the
Board, and any new director (other than a director designated by a person who has conducted or threatened a proxy contest, or has entered into an
agreement with the Company to effect a transaction described in clause (a), (b) or (d) of this definition) whose election by the Board or nomination
for election by the Company’s stockholders was approved by a vote of at least two-thirds (2/3) of the directors then still in office who either were
directors  at  the  beginning  of  the  period  or  whose  election  or  nomination  for  election  was  previously  so  approved  (such  directors,  “Incumbent
Directors”) cease for any reason to constitute at least a majority thereof; or
(d) the sale or disposition by the Company of all of substantially all of the assets of the Company or the complete liquidation or dissolution of
the Company.

CMC Materials, Inc. 2021 Omnibus Incentive Plan
Restricted Stock Award Agreement – 202[x] Deposit Share Award
Employee Name
Employee Address
City, State ZIP
Dear FIRST NAME:
I am pleased to inform you (the “Participant”) that the Compensation Committee of the Board of Directors (the “Committee”) of CMC Materials Inc.
(the “Company”) has approved your participation in the CMC Materials, Inc. 2021 Omnibus Incentive Plan (the “Plan”) as a means of allowing you to
participate in the success of the Company through ownership of Company common stock (“Stock”). An award (“the “Award”) of shares of restricted
stock (“Restricted Stock) is hereby awarded to you pursuant to the terms of the Plan, the 202[x] Deposit Share Agreement, and this Restricted Stock
Award Agreement (the “Agreement”). A copy of the Plan can be electronically accessed through the CMC Global Intranet.
Participant Name/
ID Number
Type of Award
Number of Shares of Restricted Stock
Awarded
Fair Market Value of Shares of Restricted Stock
on Award Date
[Name]
[xxx-xx-xxxx]
Restricted Stock
_[calculated from Elected Bonus Amount
and FMV]_ Deposit Shares
_[50% of D.S.]_ Award Shares
$[FMV/closing price on 12/y/2[z]
Award Date
Dates Restrictions on Shares Lapse
Award Number
December [y], 202[z]
Deposit Shares:
December [y], 202[z]
Award Shares:
December [y], 202[z+3]
[xxxxx]
This Agreement provides the Participant with the terms of the Award granted to the Participant. The terms specified in this Agreement are governed
by the provisions of the Plan, which are incorporated herein by reference. The Committee has the exclusive authority to interpret and apply the Plan
and this Agreement. Any interpretation of the Agreement by the Committee and any decision made by it with respect to the Agreement are final and
binding on all persons. To the extent that there is any conflict between the terms of this Agreement and the Plan, the Plan shall govern. Capitalized
terms used herein will have the same meaning as under the Deposit Share Agreement and the Plan, unless stated otherwise.
In consideration of the foregoing and the mutual covenants hereinafter set forth, it is agreed by and between the Company and the Participant, as
follows:
    
    1. Share Deposit. As per the terms of the Deposit Share Agreement, the Participant has given bonus income for Deposit Shares awarded under
this Agreement.  The Participant  has effectively  deposited with the Company _[number  of Deposit  Shares]______  shares  of Stock  (the “Deposit
Shares”)
12

pursuant  to  the  Deposit  Share  Agreement.  The  Deposit  Shares  are  unrestricted,  vested  and  fully  transferable  as  of  December  [y],  202[z].  The
Deposit Shares will be returned on the Distribution Date, which is December [y], 202[z].
    2.  Award  and  Restriction  Lapse.  The  Participant  has  been  awarded  [number  of  Award  Shares,  which  is  50%  of  number  of  Deposit
Shares]_______ Award Shares, the restrictions on which will lapse, and which will become unrestricted, vested and fully transferable on December
[y], 202[z+3], assuming the Deposit Shares have remained on deposit with the Company through December [y], 202[z+3]. All restrictions on Award
Shares will lapse, and they will become unrestricted, vested and fully transferable, and all Deposit Shares and Award Shares distributed in the event
of death, Disability or a Change in Control.
For  purposes  hereof,  “Disability”  shall  have  the  meaning  provided  under:  (a)  first,  an  employment  agreement  between  the  Participant  and  the
Company; (b) second, if no such employment agreement exists, the terms of the Plan. In addition, for purposes of this Agreement, the Participant’s
date of termination of Service (for any reason other than death or Disability) shall be the earlier of: (i) the date on which the Participant ceases to
render Service to or be employed by the Company, as determined by the Company in its sole discretion; (ii) the date on which the Company first
provides notice of termination of Service; or (iii) the first date of any statutory notice period provided under local law.
    3.  Award  Forfeiture.  In  the  event  the  Participant  terminates  service  for  any  reason  other  than  death,  Disability  or  a  Change  in  Control,  or
withdraws the Deposit Shares prior to December [y], 202[z], the Award of the Award Shares will terminate, the Award Shares will be forfeited, and
the Deposit Shares will be returned to the Participant.
    4. Termination / Cancellation / Rescission / Recovery / Revocation.  The Company may terminate, cancel, rescind, recover, or revoke the Award
immediately under certain circumstances, including, but not limited to, the Participant’s:
(a)    actions constituting Cause, as defined in the Plan, or the Company’s By-laws or Certificate of Incorporation, and as otherwise
enforceable under local law, as applicable;
(b)    rendering of services for a competitor prior to, or within six (6) months after, the exercise of any Award or the termination of
Participant’s Service with the Company;
(c)    unauthorized disclosure of any confidential/proprietary information of the Company to any third party;
(d)    failure to comply with the Company’s policies regarding the identification, disclosure and protection of intellectual property;
(e)    violation of the Company’s Employee Confidentiality, Intellectual Property and Non-Competition Agreement or similar agreement
signed by the Participant; or,
(f)    violation of the Company’s Code of Business Conduct, including those provisions related to financial reporting.
In the event of any such termination, cancellation, rescission, recovery, or revocation, the Participant must return any Award Shares obtained by the
Participant pursuant to the Award, or pay to the Company the amount of any gain realized on the sale of such Stock, and the Company shall be
entitled to set off against the amount of any such gain any amount owed to the Participant by the Company.  To the extent applicable, the Company
will refund to the Participant any amount paid for such Stock, including any withholding requirements.
    5. Rights and Restrictions Governing Restricted Stock. As of the Award Date, one or more certificates representing the appropriate number of
shares  of  Restricted  Stock  granted  to  the  Participant  shall  be  registered  in  the  Participant’s  name  but  shall  be  held  by  the  Company  for  the
Participant’s account. The Participant shall have all rights of a stockholder as to such shares of Restricted Stock

(including, to the extent applicable, the right to receive dividends and to vote), subject to the following restrictions: (a) the Participant has executed a
valid stock power on behalf of the Company for such Restricted Stock; (b) the Participant shall be entitled to delivery of certificates representing
shares of Stock when restrictions lapse; and (c) none of the shares of Restricted Stock may be sold, transferred, assigned, pledged or otherwise
encumbered or disposed of until the restrictions have lapsed, except as provided in Section 9.
    6. Delivery of Restricted Stock. As soon as reasonably practicable following the date on which restrictions lapse, one or more stock certificates for
the appropriate number of shares of Stock, free of the restrictions set forth in the Agreement, shall be delivered to the Participant or such shares
shall  be  credited  to  a  brokerage  account  if  the  Participant  so  directs;  provided  however,  that  such  certificates  shall  bear  such  legends  as  the
Committee, in its sole discretion, may determine to be necessary or advisable in order to comply with applicable federal and state securities laws.
    7. Tax Treatment. The Participant will generally be taxed on the difference between any purchase price and the Fair Market Value of the Stock on
the date the restrictions lapse. This income will be taxed as ordinary income and subject to income and FICA withholding taxes. The Company is
required to withhold and remit these taxes to the appropriate tax authorities. The Participant will be required to provide the Company with an amount
of cash sufficient to satisfy the Participant’s tax withholding obligations or to make arrangements satisfactory to the Company with regard to such
taxes. The income will be reported to the Participant as part of the Participant’s employment compensation on the Participant’s annual earnings
statement Form W-2.
The Participant may elect to make an election under Section 83(b) of the Code to have any ordinary income amount taxed currently, before any
restrictions lapse. This election must be filed within thirty (30) days of the Award Date. Attached hereto is a form of election for this purpose.
Under current law, if the Participant sells the Stock acquired under the Award, a long-term or short-term capital gain or loss will result depending on:
(a) the holding period for the shares, and (b) the difference between the Fair Market Value of the shares at the time of the sale and the Participant’s
tax basis in the shares. The holding period is determined from the date the restrictions lapse. Under current law the capital gain or loss is long term if
the property is held for more than one (1) year, and short term of the property is held for less than one year. The tax basis of the shares is the sum
of (i) any purchase price paid for the shares, and (ii) the ordinary income, if any, determined by the difference between the Fair Market Value of the
shares when the restrictions lapse or an 83(b) election is made, and any purchase price.
EACH  PARTICIPANT  IS  URGED  TO  CONSULT  WITH  HIS  OR  HER  OWN  TAX  ADVISOR  TO  DETERMINE  THE  PARTICULAR  TAX
CONSEQUENCES INCLUDING THE APPLICABILITY AND EFFECT OF FEDERAL, LOCAL AND OTHER TAX LAWS.
    8. Tax Withholding. All deliveries and distributions under this Agreement are subject to withholding of all applicable taxes. The various methods
and manner  by which tax  withholding may be satisfied  are set forth  in the Plan.  If  the Participant  is subject  to Section  16 (an “Insider”),  of the
Securities Exchange Act of 1934 (“Exchange Act”), any surrender of previously owned shares to satisfy tax withholding obligations arising under an
Award must  comply with the requirements  of Rule 16b-3 promulgated under the Exchange Act (“Rule 16b-3”)  and other  relevant law rules and
regulations and Company guidelines.
    9. Transferability. Shares of Restricted Stock are not transferable other than: (a) by will or by the laws of descent and distribution; (b) pursuant to
a domestic relations order; or (c) to members of the Participant’s immediate family, to trusts solely for the benefit of such immediate family members
or to partnerships in which family members and/or trusts are the only partners, all as provided under the terms

of the Plan. After any such transfer, shares of Restricted Stock shall remain subject to the terms of the Plan.
                    
    10. Adjustment of Shares. In the event of any transaction that is a Share Change or a Corporate Transaction, each as described in Section 8.6 of
the Plan, the terms of this Award (including, without limitation, the number and kind of shares subject to this Award) shall or may be adjusted, as
applicable, as set forth in Section 8.6 of the Plan.
    11. Severability. In the event that any provision of this Agreement is found to be invalid, illegal or incapable of being enforced by any court of
competent jurisdiction for any reason, in whole or in part, the remaining provisions of this Agreement shall remain in full force and effect to the fullest
extent permitted by law.
    12. Waiver. Failure to insist upon strict compliance with any of the terms and conditions of this Agreement or the Plan shall not be deemed a
waiver of such term or condition.
    13. Purpose of Award; Not an Employment Contract. This Award is intended to promote goodwill between the Participant and the Company and
shall not be considered as salary or other remuneration for any employment or other services the Participant may perform for the Company or any of
its affiliates. The Award does not confer any contractual or other rights of employment or service with the Company. Benefits granted under the Plan
shall  not  be  considered  as  part  of  the  Participant’s  salary  in  the  event  of  severance,  redundancy  or  resignation.  The  Award  shall  also  not  be
construed  as  creating  any  right  on  the  part  of  Participant  to  receive  any  additional  benefits  including  awards  in  the  future,  it  being  expressly
understood and agreed that any future awards shall be made solely at the discretion of the Company.
    14. Notices. Except as provided in Section 15, any notices provided for in this Agreement or the Plan must be in writing and hand delivered, sent
by fax or overnight courier, or by postage paid first class mail. Notices are to be sent to the Participant at the address indicated by the Company’s
records and to the Company at its principal executive office.
    15. Electronic Delivery. The Company may, in its sole discretion, decide to deliver any documents related to the shares of Restricted Stock or
other  awards  granted  to  the  Participant  under  the  Plan  by  electronic  means.  The  Participant  hereby  consents  to  receive  such  documents  by
electronic delivery and agrees to participate in the Plan through an on-line or electronic system established and maintained by the Company or a
third party designated by the Company.
    16. Governing Law. This Agreement shall be construed under the laws of the State of Delaware.
IN WITNESS WHEREOF, the Company has caused this Agreement to be executed in its name and on its behalf, all as of the Award Date.
CMC MATERIALS, INC.
[signature]
[name]
President and Chief Executive Officer

CMC Materials, Inc. 2021 Omnibus Incentive Plan
Restricted Stock Award Agreement – 202[z] Deposit Share Award
ACKNOWLEDGEMENT AND RECEIPT
PARTICIPANT
Type of Award
Number of Shares of Restricted
Stock Awarded
Fair Market Value of
Restricted Shares on
Award Date
Participant ID
Number
[Name]
Restricted Stock
_[calculated from Elected Bonus
Amount and FMV]_ Deposit Shares
_[50% of D.S.]_ Award Shares
[FMV on 12/[y]/[z]]
Award Date
Dates Restrictions on Shares Lapse
Award Number
December[y], 202[z]
Deposit Shares:
December [y], 202[z]
Award Shares:
December [y], 202[z+3]
    
I hereby acknowledge receipt of the Restricted Stock Award (the “Award”) issued to me by CMC Materials, Inc. (the “Company”) on the date shown
above, which has been granted under and is governed by the terms and conditions of the CMC Materials, Inc. 2021 Omnibus Incentive Plan, the
Deposit  Share  Agreement  dated  _____________________  (the  “Deposit  Share  Agreement”),  and  the  Award  Agreement  dated  December  [y],
202[z].  I  further  acknowledge  receipt  of a copy  of the Plan,  certify  that  I am  in conformance  with and agree  to conform  to all of the  terms  and
conditions of the Agreement, the Deposit Share Agreement and the Plan, including giving explicit consent to the Company to transfer personal data
related to the Plan administration outside of the country in which I am employed and to the United States.
According to the terms and conditions of the Award, the Award Shares awarded pursuant to it are scheduled to vest (lapse of restrictions) upon the
three year anniversary of the Award. When such Award Shares vest, pursuant to the terms of the Plan, and as with the Deposit Shares, you will be
free to hold these shares, or to sell, pledge, or give gifts of them, subject, of course, to the Company’s policy on trading in CMC Materials, Inc. stock
as set forth in the Company’s Insider Trading Policy and Trading Guidelines for Directors, Officers and Other Key Employees and the requirements
of the federal securities laws.
Unless you make an 83(b) election to satisfy your tax obligations on Award Shares pursuant to the Award (see attached), the Company will be
required at vesting to withhold the minimum federal, state and FICA taxes, on the total value of your Award Shares upon vesting. I acknowledge that
at vesting, the Company will withhold cash or shares that would otherwise be distributable to me upon vesting of the RSUs in an amount sufficient to
satisfy the applicable federal, state and FICA taxes on the total value of my Award upon vesting. However, if determined by the Company in its
discretion, the Company may require me to satisfy such withholding requirements in any other manner set forth in Section 8.4 of the Plan. The value
of the shares upon vesting will be based on the closing price of the Company stock (as reported on NASDAQ) as of the vesting date.
I  further  acknowledge  that  I  have  received  a  copy  of  the  prospectus  for  the  Plan.  I  hereby  consent  to  receiving  all  future  prospectuses  for  the
remainder of my Service to the Company through the Company's intranet website. I am aware that I may withdraw my consent to receive future
prospectuses from the

Company's intranet website at any time and upon such withdrawal will be entitled to a paper copy of any future prospectus deliveries.
Signature _______________________________    Date ___________________
Please return one original signed Acknowledgement and Receipt by January [a], 202[z+1] to:
[name
Title
Email]
Please keep a copy of this signed Acknowledgement and Receipt, and the Agreement, for your own records. If you have any questions, please
contact [HR contact].

CONSENT OF SPOUSE
Restricted Stock Award Agreement
I, ____________________, spouse of [Participant], have read and approve the Restricted Stock Award Agreement dated December [y], 202[z] (the
“Agreement”). In consideration of granting of the right to my spouse to receive or purchase shares of stock of CMC Materials, Inc., a Delaware
corporation, as set forth in the Agreement, I hereby appoint my spouse as my attorney-in-fact with respect to the exercise of any rights under the
Agreement and agree to be bound by the provisions of the Agreement insofar as I may have any rights in said Agreement or any shares issued
pursuant thereto under the community property laws or similar laws relating to marital property in effect in the state of our residence as of the date of
the signing of the foregoing Agreement.
Signature_____________________________________
Date ___________________
Name (Print) ___________________________________
Please return one copy of a signed “Consent of Spouse” (if applicable) form to the Company’s Human Resources Department by January
[a], 202[z+1].

ATTACHMENT A
ELECTION UNDER SECTION 83(b) OF THE INTERNAL REVENUE CODE OF 1986
The undersigned taxpayer  hereby elects, pursuant  to Section 83(b)  of the Internal  Revenue Code of 1986, as amended, to include in its gross
income for the taxable year ending December 31, 202[z], the amount of any compensation taxable to it in connection with its receipt of the property
described below:
1.    The name, address and taxpayer identification number of the undersigned taxpayer are as follows:
NAME:
ADDRESS:
TAXPAYER I.D. NUMBER:
2.     The  property  with  respect  to  which  the  election  is  made  is  described  as  follows:  [_________________________________]  shares  of
common stock of CMC Materials, Inc. (the “Company”).
3.    The date on which the property was transferred and the taxable year for which this election is made are as follows:
4.    The property is subject to the following restrictions:
The property is subject to forfeiture conditions in favor of the Company, which lapse incrementally if the taxpayer provides services to the
Company over a period of years.
5.    The fair market value at the time of transfer, determined without regard to any restriction other than a restriction which by its terms will never
lapse, of such property is:
6.    The amount paid for such property is:
The undersigned has submitted a copy of this statement to the person for whom the services will be performed in connection with the undersigned’s
receipt of the above-described property. The transferee of such property is the person performing the services in connection with the transfer of said
property.
The undersigned understands that the foregoing election may not be revoked except with the consent of the Commissioner.
Print Name: ________________________________
Sign Name: ________________________________
Dated: ____________________________________

CMC Materials, Inc.
SHORT TERM INCENTIVE PROGRAM
ARTICLE I. GENERAL
Section 1.1.  Purpose.  CMC Materials, Inc. (the "Corporation") maintains the CMC Materials Short Term Incentive Program, which operates pursuant to,
and  according  to  the  terms  of,  the  CMC  Materials,  Inc.  2021  Omnibus  Incentive  Plan  ("OIP"),  (the  "Program")  to  benefit  and  advance  the  interests  of  the
Corporation  by  providing  to  the  Corporation's  employees  performance-based  cash  incentives  ("Bonuses")  that  are  based  upon  the  achievement  of  financial,
business and other performance goals.  Any Bonuses pursuant to the Program are Awards under the OIP.
Section 1.2.  Administration of the Program.  The Compensation Committee of the Corporation's Board of Directors (the "Committee") shall administer
the  Program.   The  Committee  may  adopt  such  rules  as  it  deems  appropriate  in  order  to  carry  out  the  purpose  of  the  Program.   Questions  of  interpretation,
administration and application of the Program shall be determined by the Committee.  The Committee may authorize any one or more of its members, or any
officer of the Corporation, to execute and deliver documents on behalf of the Committee with respect to the Program.  The determinations of the Committee shall
be final and binding in all matters relating to the Program.  The Committee shall have authority to determine the terms and conditions of Bonuses.   With the
exception of any determination or payment of any Bonus to any Executive Officer of the Corporation (as defined by relevant Securities and Exchange Commission
regulations), the Committee may delegate some or all of its authority under the Program to the Chief Executive Officer or other officers.
Section 1.3.  Eligible Persons.  Bonuses may be granted to employees of the Corporation.  The Committee or, if applicable, its delegate(s) shall determine
the employees who are eligible to participate in the Program ("Participants").  An individual shall not be deemed an employee for purposes of the Program unless
such individual is classified and receives compensation from the Corporation for services performed as an employee of the Corporation.
ARTICLE II. BONUSES
Section 2.1. Bonuses.  The Committee may grant annual Bonuses to employees subject to the provisions of the Program.
Section 2.2. Terms of Bonuses.  The Committee or, if applicable, its delegate(s) shall (i) establish for the relevant period of the Program ("Performance
Period") the applicable performance goals and objectives ("Performance Objectives") for the Corporation and each Participant, and the particular allocation to each
such Performance Objective, and (ii) establish target bonuses for each Participant, which shall equal a percentage of the Participant's base salary.  In general, for
the Program, the Performance Period is the Corporation's fiscal year (October 1 – September 30).  Performance Objectives under the Program may include, but
shall not be limited to, various financial, business and operational goals (for example, those related to earnings per share, revenue, gross margin, operating income,
cash  flow,  earnings  before  interest  and  taxes,  customer  satisfaction,  product  quality,  securing  new  opportunities,  new  product  introductions,  productivity
improvements,  customer  return  rate,  new  business  area  growth,  environmental,  health  and  safety,  and  human  capital  management,  including  diversity  and
inclusion).
Section 2.3. Determination of Bonuses.  Following the close of the relevant Performance Period, the Committee, or, with respect to Participants other than
Executive Officers, the Committee's delegate(s), shall determine the amount of Bonus (if any) to be paid to each Participant, based on assessment of achievement
of the Performance Objectives of the Program, as well as reflecting an assessment of each Participant's individual
CMC Materials, Inc. 2021

performance or other factors during the relevant Performance Period, in the Committee's (or delegate(s)') sole discretion.  In no event shall a determination of a
Bonus for an Executive Officer be made other than by the Committee.
Section 2.4. Payment of Bonuses.  Payment of a Bonus to a Participant shall be made as soon as practicable after determination of the amount of the
Bonuses under Section 2.3 above, and after the Committee has approved the aggregate bonus payout amount for the Performance Period, and individual Bonuses
for the Corporation's Executive Officers, but in no event later than 75 days after the end of the Performance Period.  In no event shall a payment of a Bonus be
made to an Executive Officer other than as specifically authorized by the Committee.  Participants whose employment is terminated, whether by the Corporation or
voluntarily by the Participant, prior to the payment date of a Bonus shall not be entitled to receive a Bonus, whether or not a Bonus amount previously had been
designated for such Participant pursuant to the terms of the Program.  According to the intent of the Corporation to award the entire accrual of Bonus amounts for
the relevant Performance Period, which is set by the Committee in conjunction with the closing of the Corporation's financial books for such Performance Period,
to the extent a Bonus amount had been accrued for and/or designated for such Participant in advance of the termination of such Participant's employment, the
Corporation shall reallocate such amount to the pool of other Participants (with the exception of Executive Officers unless specifically agreed upon by the
Committee) in the Program, to the extent administratively practical.
Section 2.5. Recovery of Bonuses.  The Corporation may rescind or recover a Bonus paid to a Participant immediately under certain circumstances,
including, but not limited to, (i) the Participant's: actions constituting Cause, as determined by the Corporation in its discretion and as otherwise enforceable under
local law; rendering of services for a competitor prior to, or within six (6) months after, the payment of a Bonus or the termination of Participant's Service with the
Corporation; unauthorized disclosure of any confidential/proprietary information of the Corporation to any third party; failure to comply with the Corporation's
policies regarding the identification, disclosure and protection of intellectual property; violation of the CMC Materials, Inc. Employee Confidentiality, Intellectual
Property and Non-Competition Agreement; violation of the CMC Materials, Inc. Code of Business Conduct, including those provisions related to financial
reporting, (2) and, as may be required by law, including regulations related to the Dodd-Frank Wall Street Reform and Consumer Protection Act.  In the event of
any such rescission or right of recovery, the Participant must repay the Bonus to the Corporation, and the Company shall be entitled to set-off against the amount of
the Bonus any amount owed to the Participant by the Corporation.
ARTICLE III  MISCELLANEOUS
Section 3.1. No Additional Participant Rights.  The participation of an employee in the Program shall not give such employee any right to be retained in
the employ of the Corporation or any of its affiliates, and the Corporation specifically reserves the right to dismiss a Participant or to terminate any arrangement
pursuant to which any such Participant provides services to the Corporation, with or without cause.  No person shall have claim to a Bonus under the Program,
except as otherwise provided for herein, or to continued participation in the Program. There is no obligation for uniformity of treatment of Participants under the
Program. The benefits provided for Participants under the Program shall be in addition to and shall in no way preclude other forms of compensation to or in respect
of such Participants. It is expressly agreed and understood that the employment of a Participant is terminable at the will of either party and, if such Participant is a
party to an employment agreement with the Corporation or one of its affiliates, in accordance with the terms and conditions of the Participant's employment
agreement.
Section  3.2. No  Assignment.   The  rights  of  a  Participant  with  respect  to  any  Bonuses  granted  under  the  Program  shall  not  be  transferable  by  the
Participant.
CMC Materials, Inc. 2021

Section 3.3. Taxes; Tax Withholding.  To the extent a Participant who is to be paid a Bonus under the Program is subject to an employment arrangement
with the Corporation or a subsidiary thereof that provides for tax equalization consideration, then such tax equalization consideration also shall apply to, and be
included as part of, the Participant's Bonus to be paid under the Program.  The Corporation or a subsidiary thereof, as appropriate, shall have the right to deduct
from all payments made under the Program to a Participant or to a Participant's beneficiary or beneficiaries any federal, state or local taxes required by law to be
withheld with respect to such payments. Section
Section 3.4. No Restriction on Right of Corporation to Effect Changes.  The Program shall not affect in any way the right or power of the Corporation or
its  stockholders  to  make  or  authorize  any  recapitalization,  reorganization,  merger,  acquisition,  divestiture,  consolidation,  spin-off,  combination,  liquidation,
dissolution, sale of assets, or other similar corporate transaction or event involving the Corporation or a subsidiary thereof or any other event or series of events,
whether of a similar character or otherwise.
Section 3.5. Source of Payments.  The Corporation shall not have any obligation to establish any separate fund or trust or other segregation of assets to
provide for payments under the Program. To the extent any person acquires any rights to receive payments hereunder from the Corporation, such rights shall be no
greater than those of an unsecured creditor. 
Section 3.6. Amendment and Termination.  The Committee may at any time and from time to time alter, amend, suspend or terminate the Program in
whole or in part.
Section 3.7. Governing Law and Severability.  The Program and all rights and Bonuses hereunder shall be construed in accordance with and governed by
the laws of the State of Illinois without regard to conflicts of law principles and applicable federal law.  The jurisdiction and venue for any disputes arising under,
or any action brought to enforce (or otherwise relating to), the Program shall be exclusively in the courts in the State of Illinois, including the Federal Courts
located therein (should Federal jurisdiction exist).  If any portion of the Program is deemed to be in conflict with local law, that portion of the Program, and that
portion only, will be deemed null and void under that local law. All other provisions of the Program will remain in full effect.
Section 3.8.  Miscellaneous.  Notwithstanding any provision of the Program to the contrary, any and all Bonuses made under the Program are intended to
be exempt from or, in the alternative, comply with Section 409A of the Internal Revenue Code of 1986, as amended, and the interpretive guidance thereunder,
including the exceptions for short-term deferrals.  The Program shall be construed and interpreted in accordance with such intent.
CMC Materials, Inc. 2021

EXHIBIT 21.1
SUBSIDIARIES OF CMC MATERIALS, INC.
Subsidiaries
Location
CMC Materials Global Corporation
Delaware, U.S.
NexPlanar Corporation
Delaware, U.S.
QED Technologies International, Inc.
Delaware, U.S.
CMC Materials Japan KK
Japan
CMC Materials KK
Japan
CMC Materials B.V.
Netherlands
CMC Materials Asia Pte. Ltd.
Singapore
CMC Materials Korea, LLC
South Korea
CMC Materials Taiwan Co., Ltd.
Taiwan
Shanghai Cabot Microelectronics Co. Ltd.
China
CMC Materials KMG Corporation
Texas, U.S.
KMG-Bernuth, Inc.
Delaware, U.S.
KMG de Mexico SA de CV
Mexico
CMC Materials EC, Inc.
Texas, U.S.
CMC Materials Italia SrL
Italy
CMC Materials Luxembourg Holdings S.a.r.l.
Luxembourg
CMC Materials France SAS
France
CMC Materials UPC SAS
France
CMC Materials EC Pte. Ltd.
Singapore
CMC Materials Singapore Pte. Ltd.
Singapore
CMC Materials SDN BHD
Malaysia
CMC Materials UK Limited
United Kingdom
CMC Materials UPC Limited
United Kingdom
CMC Materials Sealweld Canada, Inc.
British Columbia, Canada
KMG Val-Tex, LLC
Texas, U.S.
Sealweld Corporation (2003), Inc.
Nevada, U.S.
Sealweld (USA), Inc.
Texas, U.S.
KMG-Flowchem, Inc.
Delaware, U.S.
Flowchem LLC
Delaware, U.S.
FLX Inc.
Texas, U.S.
International Test Solutions, LLC
Delaware, U.S.
International Test Solutions Korea Limited
South Korea
International Development Test Co., Ltd.
Taiwan
Suzhou Meice Test Technology Co., Ltd.
China

EXHIBIT 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in the Registration Statements on Form S‑8 (No. 333-34272, 333-34270, 333-82680, 333-123692, 333-
170810, 333-179955, 333-232088, 333-255819) and Form S-4 (No. 333-227301) of CMC Materials, Inc. of our report dated November 12, 2021 relating to the
financial statements and financial statement schedule and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.
/s/ PricewaterhouseCoopers LLP
Chicago, Illinois
November 12, 2021

EXHIBIT 24.1
POWER OF ATTORNEY
Know all persons by these presents, that each person whose signature appears below constitutes and appoints H. Carol Bernstein, their Attorney-in-fact, with
the power of substitution, for him or her in any and all capacities, to sign the annual report on Form 10-K for the fiscal year ended September 30, 2021 and any
amendments to this Report on Form 10-K, and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and
Exchange Commission, hereby ratifying and confirming all that said Attorney-in-fact, or her substitutes, may do or cause to be done by virtue hereof.
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this Report has been signed below by the following persons on behalf of the
Registrant and in the capacities and on the dates indicated.
SIGNATURE
TITLE
Date
/s/ William P. Noglows
Chairman of the Board
November 12, 2021
William P. Noglows
/s/ David H. Li
President and Chief
November 12, 2021
David H. Li
Executive Officer
/s/ Richard S. Hill
Director
November 12, 2021
Richard S. Hill
/s/ Barbara A. Klein
Director
November 12, 2021
Barbara A. Klein
/s/ Paul J. Reilly
Director
November 12, 2021
Paul J. Reilly
/s/ Anne K. Roby
Director
November 12, 2021
Anne K. Roby
/s/ Susan M. Whitney
Director
November 12, 2021
Susan M. Whitney
/s/ Geoffrey Wild
Director
November 12, 2021
Geoffrey Wild

Exhibit 31.1
CERTIFICATION
I, David H. Li, Chief Executive Officer of CMC Materials, Inc., certify that:
1. I have reviewed this Annual Report on Form 10-K of CMC Materials, Inc.;
2. 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;
3. 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;
4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange
Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the
registrant and have:
(a) 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 (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially
affect, the registrant's internal control over financial reporting; and
5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the
registrant's auditors and the audit committee of registrant's board of directors:
(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: November 12, 2021
/s/ DAVID H. LI
David H. Li 
Chief Executive Officer

Exhibit 31.2
CERTIFICATION
I, Scott D. Beamer, Chief Financial Officer of CMC Materials, Inc., certify that:
1. I have reviewed this Annual Report on Form 10-K of CMC Materials, Inc.;
2. 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;
3. 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;
4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange
Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the
registrant and have:
(a) 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 (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially
affect, the registrant's internal control over financial reporting; and
5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the
registrant's auditors and the audit committee of registrant's board of directors:
(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: November 12, 2021
/s/ SCOTT D. BEAMER
Scott D. Beamer 
Chief Financial Officer

Exhibit 32.1
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the Annual Report of CMC Materials, Inc. (the "Company") on Form 10-K for the fiscal year ended September 30, 2021, as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), each of the undersigned officers of the Company 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 15(d) of the Securities Exchange Act of 1934, as amended; 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: November 12, 2021
/s/ DAVID H. LI
David H. Li 
Chief Executive Officer
Date: November 12, 2021
/s/ SCOTT D. BEAMER
Scott D. Beamer 
Chief Financial Officer