This Quarterly Report on Form 10-Q contains "forward-looking statements" within
the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A
of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of
1934 regarding the future financial performance, business prospects and growth
of MKS. These statements are only predictions based on current assumptions and
expectations. Any statements that are not statements of historical fact
(including statements containing the words "will," "projects," "intends,"
"believes," "plans," "anticipates," "expects," "estimates," "forecasts,"
"continues" and similar expressions) should be considered to be forward-looking
statements. Actual events or results may differ materially from those in the
forward-looking statements set forth herein.

Among the important factors that could cause actual events to differ materially
from those in the forward-looking statements are manufacturing and sourcing
risks, including the impact and duration of supply chain disruptions and
component shortages, the ability of MKS to complete its acquisition of Atotech
Limited ("Atotech"), the terms of MKS' existing term loan, the terms and
availability of financing for the Atotech acquisition, the substantial
indebtedness MKS expects to incur in connection with the Atotech acquisition and
the need to generate sufficient cash flows to service and repay such debt, MKS'
entry into Atotech's chemicals technology business, in which MKS does not have
experience and which may expose it to significant additional liabilities, the
risk of litigation relating to the Atotech acquisition, the risk that disruption
from the Atotech acquisition materially and adversely affects the respective
businesses and operations of MKS and Atotech, the ability of MKS to realize the
anticipated synergies, cost savings and other benefits of the Atotech
acquisition, competition from larger or more established companies in MKS' and
Atotech's respective markets, the ability of MKS to successfully grow its
business and the businesses of Atotech, Photon Control Inc. ("Photon Control"),
which it acquired in July 2021, and Electro Scientific Industries, Inc. ("ESI"),
which it acquired in February 2019, potential adverse reactions or changes to
business relationships resulting from the announcement, pendency or completion
of the Atotech acquisition, conditions affecting the markets in which MKS and
Atotech operate, including the fluctuations in capital spending in the
semiconductor industry and other advanced manufacturing markets, and
fluctuations in sales to MKS' and Atotech's major customers, the ability to
anticipate and meet customer demand, the challenges, risks and costs involved
with integrating the operations of the companies we have acquired, potential
fluctuations in quarterly results, dependence on new product development, rapid
technological and market change, acquisition strategy, volatility of stock
price, international operations, financial risk management, and the other
factors described in MKS' Annual Report on Form 10-K for the year ended
December 31, 2020 and any subsequent Quarterly Reports on Form 10-Q, as filed
with the U.S. Securities and Exchange Commission (the "SEC"). MKS is under no
obligation to, and expressly disclaims any obligation to, update or alter these
forward-looking statements, whether as a result of new information, future
events or otherwise after the date of this report.

The Management's Discussion and Analysis of Financial Condition and Results of
Operations, or MD&A, describes principal factors affecting the results of our
operations, financial condition and liquidity, as well as our critical
accounting policies and estimates that require significant judgment and thus
have the most significant potential impact on our consolidated financial
statements. This section provides an analysis of our financial results for the
three and nine months ended September 30, 2021 compared to the three and nine
months ended September 30, 2020.

Overview



We are a global provider of instruments, systems, subsystems and process control
solutions that measure, monitor, deliver, analyze, power and control critical
parameters of advanced manufacturing processes to improve process performance
and productivity for our customers. Our products are derived from our core
competencies in pressure measurement and control, flow measurement and control,
gas and vapor delivery, gas composition analysis, electronic control technology,
reactive gas generation and delivery, power generation and delivery, vacuum
technology, temperature sensing, lasers, photonics, optics, precision motion
control, vibration control and laser-based manufacturing systems solutions. We
also provide services relating to the maintenance and repair of our products,
installation services and training. Our primary served markets include
semiconductor, industrial technologies, life and health sciences, and research
and defense.

Recent Events

On July 15, 2021, we completed our previously announced acquisition of Photon
Control (the "Photon Control Acquisition"), pursuant to a definitive agreement.
Photon Control designs, manufactures and distributes a wide range of optical
sensors and systems to measure temperature and position used in semiconductor
wafer fabrication. At the effective time of the Photon Control Acquisition, each
share of Photon Control's common stock issued and outstanding as of immediately
prior to the effective time of the Photon Control Acquisition was converted into
the right to receive CAD 3.60 per share in cash, without interest and subject to
deduction for any required withholding tax. We paid to the former Photon Control
securityholders aggregate consideration of CAD 378.6 million or USD 302.7
million, excluding related transaction fees and expenses. We funded the payment
of the aggregate consideration with available cash on hand. Photon Control is
included in our Light & Motion ("L&M") segment.

                                       33

--------------------------------------------------------------------------------


On July 1, 2021, we entered into a definitive agreement (as amended from time to
time, the "Implementation Agreement") to acquire Atotech, a leading process
chemicals technology company and a market leader in advanced electroplating
solutions. Pursuant to the Implementation Agreement, we agreed to pay $16.20 per
share in cash and 0.0552 of a share of our common stock for each outstanding
common share of Atotech, for total cash and stock consideration of approximately
$5.1 billion. The acquisition is expected to close by the end of 2021, subject
to the satisfaction of certain closing conditions, including receipt of required
regulatory approvals, approval by the Royal Court of Jersey and approval by
Atotech's shareholders. Our obligations to complete the acquisition are not
subject to any financing condition. We intend to fund the cash portion of the
transaction with a combination of available cash on hand and committed term loan
debt financing.  In connection with entering into the Implementation Agreement,
we entered into (a) a commitment letter (the "Initial Commitment Letter"), dated
as of July 1, 2021, with JPMorgan Chase Bank, N.A. and Barclays Bank PLC
(collectively, the "Initial Commitment Parties") and (b) joinders to the Initial
Commitment Letter to add certain additional lender parties (the "Commitment
Letter Joinders" and, together with the Initial Commitment Letter, the
"Commitment Letter") dated as of July 23, 2021, with the Initial Commitment
Parties and the additional lenders party thereto (collectively, the
"Supplemental Commitment Parties" and, together with the Initial Commitment
Parties, the "Commitment Parties"), pursuant to which, subject to the terms and
conditions set forth therein, the Commitment Parties committed to provide (i) a
senior secured term loan credit facility in an aggregate principal amount of
$5.3 billion (the "New Term Loan Facility") and (ii) a senior secured revolving
credit facility with aggregate total commitments of $500 million (the "New
Revolving Credit Facility"). The New Term Loan Facility and New Revolving Credit
Facility would refinance the Term Loan Facility and ABL Facility, respectively,
and the New Term Loan Facility would be used to finance a portion of the
acquisition and to refinance certain existing indebtedness of Atotech.

On October 22, 2021, we completed the syndication of the New Term Loan Facility,
comprised of two tranches: a USD 4.7 billion loan at LIBOR plus 2.25%, a floor
of 0.50% and 0.25% of original issue discount, and a Euro tranche of EUR 0.5
billion (approximately USD 0.6 billion) at EURIBOR plus 2.75%, a floor of 0.00%
and 0.25% of original issue discount. Proceeds from the anticipated New Term
Loan Facility will be used to finance a portion of the acquisition of Atotech
and to repay our existing Term Loan Facility and certain existing indebtedness
of Atotech.

The Commitment Parties' obligations under the Commitment Letter and the closing
and initial funding under the New Term Loan Facility are subject to certain
customary conditions including, without limitation, the consummation of the
acquisition of Atotech in accordance with the Implementation Agreement, the
accuracy of specified representations and warranties of us and other customary
closing conditions.

Segments and Markets

The Vacuum & Analysis ("V&A") segment provides a broad range of instruments,
components and subsystems which are derived from our core competencies in
pressure measurement and control, flow measurement and control, gas and vapor
delivery, gas composition analysis, electronic control technology, reactive gas
generation and delivery, power generation and delivery, and vacuum technology.

The Light & Motion ("L&M") segment provides a broad range of instruments, components and subsystems which are derived from our core competencies in lasers, photonics, optics, temperature sensing, precision motion control and vibration control.



The Equipment & Solutions ("E&S") segment provides a range of products including
laser-based systems for printed circuit board ("PCB") manufacturing, which
include flexible interconnect PCB processing systems and high-density
interconnect solutions for rigid PCB manufacturing and substrate processing and
multi-layer ceramic capacitor test systems.

Semiconductor Market

A significant portion of our sales is derived from products sold to semiconductor capital equipment manufacturers and semiconductor device manufacturers. Our products are used in major semiconductor processing steps, such as depositing thin films of material onto silicon wafer substrates, etching, cleaning, lithography, metrology and inspection.

Approximately 61% and 60% of our net revenues for the nine months ended September 30, 2021 and 2020, respectively, were from sales to semiconductor capital equipment manufacturers and semiconductor device manufacturers.

We anticipate that the semiconductor market will continue to account for a substantial portion of our sales. While the semiconductor device manufacturing market is global, major semiconductor capital equipment manufacturers are concentrated in China, Japan, South Korea, Taiwan and the United States.



Net revenues in our semiconductor market increased by $128.9 million, or 36%,
for the three months ended September 30, 2021, compared to the same period in
the prior year, primarily due to an increase of $113.2 million and $23.7 million
from our V&A and L&M segments, respectively, offset by a decrease of $8.0
million from our E&S segment. Net revenues in our semiconductor market increased
by $337.5 million, or 34%, for the nine months ended September 30, 2021,
compared to the same period in the prior year, primarily due to an increase of
$327.2 million and $33.8 million from our V&A and L&M segments, respectively,
offset by a

                                       34

--------------------------------------------------------------------------------

decrease of $23.5 million from our E&S segment, resulting from the discontinuance of certain non-core products. The net revenues from our L&M segment for each of the three and nine months ended September 30, 2021 included $14.8 million from our acquisition of Photon Control.



The semiconductor capital equipment industry is subject to rapid demand shifts,
which are difficult to predict, and we cannot be certain as to the timing or
extent of future demand or any future weakness in the semiconductor capital
equipment industry.

During the nine months ended September 30, 2021, we experienced supply chain
disruptions and component shortages in our semiconductor market due to global
capacity constraints compounded by increasing global demand as well as the
ongoing COVID-19 pandemic. We expect these disruptions and shortages to continue
in the near-term while our suppliers adjust to significant increases in demand
and respond to the challenges posed by the COVID-19 pandemic, all of which may
negatively impact revenue from our semiconductor market for the three months
ending December 31, 2021.

Advanced Markets

In addition to the semiconductor market, our products are used in the industrial technologies, life and health sciences, and research and defense markets.

Industrial Technologies



Industrial technologies encompasses a wide range of diverse applications, such
as flexible and rigid PCB processing/fabrication, glass coating, laser marking,
measurement and scribing, natural gas and oil production, environmental
monitoring and electronic thin films. Electronic thin films are a primary
component of numerous electronic products including flat panel displays, light
emitting diodes, solar cells and data storage media. Industrial technologies
manufacturers are located in developed and developing countries across the
globe.

Life and Health Sciences



Our products for life and health sciences are used in a diverse array of
applications, including bioimaging, medical instrument sterilization, medical
device manufacturing, analytical, diagnostic and surgical instrumentation,
consumable medical supply manufacturing and pharmaceutical production. Our life
and health sciences customers are located globally.

Research and Defense



Our products for research and defense are sold to government, university and
industrial laboratories for applications involving research and development in
materials science, physical chemistry, photonics, optics and electronics
materials. Our products are also sold for monitoring and defense applications
including surveillance, imaging and infrastructure protection. Major equipment
providers and research laboratories are concentrated in China, Europe, Japan,
South Korea, Taiwan, and the United States.

Approximately 39% and 40% of our net revenues for the nine months ended September 30, 2021 and 2020, respectively, were from advanced markets.



Net revenues from customers in our advanced markets increased by $23.3 million,
or 10%, for the three months ended September 30, 2021, compared to the same
period in the prior year, primarily due to increases of $9.1 million, $8.6
million and $5.6 million from our L&M, V&A and E&S segments, respectively. The
increases were primarily due to increases in net revenues from our industrial
technologies market, mainly related to electronic component and solar markets.
Net revenues from customers in our advanced markets increased by $178.4 million,
or 26%, for the nine months ended September 30, 2021, compared to the same
period in the prior year, primarily due to increases of $81.7 million, $54.2
million and $42.5 million from our E&S, V&A and L&M segments, respectively. The
increases were primarily due to increases in net revenues from our industrial
technologies market related to PCB manufacturing.

International Markets



A significant portion of our net revenues is from sales to customers in
international markets. For the nine months ended September 30, 2021 and 2020,
international revenues accounted for approximately 58% and 55%, respectively, of
our total net revenues. A significant portion of our international net revenues
was from China, Japan, South Korea and Taiwan. We expect international net
revenues will continue to represent a significant percentage of our total net
revenues for the foreseeable future.

                                       35

--------------------------------------------------------------------------------


Long-lived assets located outside of North America accounted for approximately
25% and 28% of our total long-lived assets as of September 30, 2021 and December
31, 2020, respectively. Long-lived assets include property, plant and equipment,
net, right-of-use assets, and certain other assets and exclude goodwill,
intangible assets and long-term tax-related accounts.



Critical Accounting Policies and Estimates



The preparation of our consolidated financial statements and related disclosures
in conformity with accounting principles generally accepted in the United States
requires management to make judgments, assumptions and estimates that affect the
amounts reported. There have been no material changes in our critical accounting
policies since December 31, 2020.

For further information about our critical accounting policies, please see the
discussion of critical accounting policies in our Annual Report on Form 10-K for
the year ended December 31, 2020 in the section captioned "Management's
Discussion and Analysis of Financial Condition and Results of Operations -
Critical Accounting Policies and Estimates."

Results of Operations

The following table sets forth for the periods indicated the percentage of total net revenues of certain line items included in our condensed consolidated statements of operations and comprehensive income data.





                                              Three Months Ended            Nine Months Ended
                                                 September 30,                September 30,
                                              2021           2020           2021          2020
Net revenues:
Products                                         87.5 %         85.9 %         87.4 %        86.3 %
Services                                         12.5           14.1           12.6          13.7
Total net revenues                              100.0          100.0          100.0         100.0
Cost of revenues:
Cost of product revenues                         46.4           47.6           46.3          47.6
Cost of service revenues                          6.6            8.0            6.8           7.6
Total cost of revenues (exclusive of
amortization shown separately below)             53.0           55.6           53.1          55.2
Gross profit                                     47.0           44.4           46.9          44.8
Research and development                          7.0            7.2            6.8           7.7
Selling, general and administrative              12.9           14.7           13.2          15.6
Acquisition and integration costs                 1.2            0.1            0.9           0.2
Restructuring and other                           0.3            0.5            0.5           0.4
Amortization of intangible assets                 2.0            2.1            1.8           2.5
COVID-19 related net credits                        -              -              -           0.1
Asset impairment                                    -              -              -          (0.1 )
Income from operations                           23.6           19.8           23.7          18.4
Interest income                                     -              -              -           0.1
Interest expense                                  0.8            1.1            0.9           1.4
Other expense, net                                0.4            0.2            0.5           0.2
Income before income taxes                       22.4           18.5           22.3          16.9
Provision for income taxes                        4.6            2.9            3.9           2.9
Net income                                       17.8 %         15.6 %         18.4 %        14.0 %




Net Revenues



                          Three Months Ended           Nine Months Ended
                             September 30,               September 30,
(dollars in millions)      2021          2020         2021          2020
Products                $    649.1      $ 506.8     $ 1,910.8     $ 1,441.0
Services                      92.8         83.0         274.9         228.8
Total net revenues      $    741.9      $ 589.8     $ 2,185.7     $ 1,669.8


                                       36

--------------------------------------------------------------------------------




Net product revenues increased $142.3 million and $469.8 million during the
three and nine months ended September 30, 2021, respectively, compared to the
same periods in the prior year. These increases were primarily attributed to
increases in net product revenues from our semiconductor customers, primarily
due to volume increases, of $119.6 million and $300.3 million for the three and
nine months ended September 30, 2021, respectively, compared to the same periods
in the prior year, and increases in net product revenues from customers in
advanced markets of $22.7 million and $169.5 million for the three and nine
months ended September 30, 2021, respectively, compared to the same periods in
the prior year.



Net service revenues consisted mainly of fees for services related to the
maintenance and repair of our products, sales of spare parts, and installation
and training. Net service revenues increased $9.8 million and $46.1 million
during the three and nine months ended September 30, 2021, respectively,
compared to the same periods in the prior year. These increases were primarily
due to increases of $9.3 million and $37.2 million in net service revenues from
our semiconductor customers for the three and nine months ended September 30,
2021, respectively, compared to the same periods in the prior year.

Total international net revenues outside of North America, including product and
service, were $393.5 million and $1,263.0 million for the three and nine months
ended September 30, 2021, respectively, compared to $308.6 million and $912.1
million for the three and nine months ended September 30, 2020, respectively.
These increases were primarily attributed to increases in net revenues in China,
South Korea and Taiwan.

The following table sets forth our net revenues by reportable segment:





                                                                                              Nine Months Ended
                                               Three Months Ended September 30,                 September 30,

(dollars in millions)                            2021                     2020              2021             2020
Net revenues:
Vacuum & Analysis                          $          483.1         $          361.3     $  1,376.6       $    995.1
Light & Motion                                        208.7                    175.9          583.6            507.3
Equipment & Solutions                                  50.1                     52.6          225.5            167.4
Total net revenues                         $          741.9         $          589.8     $  2,185.7       $  1,669.8






Net revenues from our V&A segment increased $121.8 million and $381.5 million
for the three and nine months ended September 30, 2021, respectively, compared
to the same periods in the prior year, due to volume increases in net revenues
from our semiconductor customers of $113.2 million and $327.2 million for the
three and nine months ended September 30, 2021, respectively, compared to the
same periods in the prior year, and increases in net revenues from customers in
our advanced markets of $8.6 million and $54.3 million for the three and nine
months ended September 30, 2021, respectively, compared to the same periods in
the prior year, primarily from customers in our industrial technologies market.

Net revenues from our L&M segment increased $32.8 million and $76.3 million for
the three and nine months ended September 30, 2021, respectively, compared to
the same periods in the prior year, due to volume increases in net revenues from
our semiconductor customers of $23.7 million and $33.8 million for the three and
nine months ended September 30, 2021, respectively, compared to the same periods
in the prior year, and increases in net revenues from customers in our advanced
markets of $9.1 million and $42.5 million for the three and nine months ended
September 30, 2021, respectively, compared to the same periods in the prior
year.

Net revenues from our E&S segment decreased $2.5 million for the three months
ended September 30, 2021, compared to the same period in the prior year. Net
revenues increased $58.1 million for the nine months ended September 30, 2021,
compared to the same period in the prior year, primarily from customers in our
industrial technologies market.

Gross Margin



                                         Three Months Ended                     Nine Months Ended
                                            September 30,                         September 30,
                                                          % Points                              % Points
                                   2021        2020        Change        2021        2020        Change
Gross margin as a percentage of
net revenues:
Products                             46.9 %      44.6 %         2.3 %      47.0 %      44.9 %         2.1 %
Services                             47.2        43.2           4.0        46.1        44.4           1.7
Total gross margin                   47.0 %      44.4 %         2.6 %      46.9 %      44.8 %         2.1 %






                                       37

--------------------------------------------------------------------------------




Gross margin for our products increased by 2.3 and 2.1 percentage points for the
three and nine months ended September 30, 2021, respectively, compared to the
same periods in the prior year, primarily due to higher revenue volumes and
favorable product mix, partially offset by higher freight and duty costs and
higher consumable expenses as well as unfavorable overhead absorption.

Gross margin for our services increased by 4.0 and 1.7 percentage points for the
three and nine months ended September 30, 2021, respectively, compared to the
same periods in the prior year, primarily due to favorable absorption on
products serviced partially offset by unfavorable product mix.



The following table sets forth gross margin as a percentage of net revenues by
reportable segment:



                                             Three Months Ended                    Nine Months Ended
                                               September 30,                         September 30,
                                                              % Points                            % Points
                                      2021        2020         Change        2021       2020       Change
Gross margin as a percentage of
net revenues:
Vacuum & Analysis                       46.8 %      45.3 %          1.5 %     46.8 %     44.6 %         2.2 %
Light & Motion                          48.3        43.1            5.2       46.7       44.9           1.8
Equipment & Solutions                   42.6        43.0           (0.4 )     48.4       45.4           3.0
Total gross margin                      47.0 %      44.4 %          2.6 %     46.9 %     44.8 %         2.1 %




Gross margin for our V&A segment increased by 1.5 and 2.2 percentage points for
the three and nine months ended September 30, 2021, respectively, compared to
the same periods in the prior year, primarily due to higher revenue volumes.

Gross margin for our L&M segment increased by 5.2 and 1.8 percentage points for
the three and nine months ended September 30, 2021, respectively, compared to
the same periods in the prior year, primarily due to higher revenue volumes,
favorable product mix and lower excess and obsolete inventory charges, partially
offset by unfavorable absorption.

Gross margin for our E&S segment decreased by 0.4 percentage points for the
three months ended September 30, 2021, compared to the same period in the prior
year, primarily due to unfavorable absorption. Gross margin for our E&S segment
increased by 3.0 percentage points for the nine months ended September 30, 2021
compared to the same period in the prior year, primarily due to favorable
absorption and product mix.

Research and Development



                             Three Months Ended          Nine Months Ended
                                September 30,              September 30,
(dollars in millions)        2021           2020          2021         2020
Research and development   $    51.7       $  42.5     $    148.9     $ 127.7




Research and development expenses increased $9.2 million for the three months
ended September 30, 2021, compared to the same period in the prior year. The
increase was primarily related to an increase of $6.2 million in
compensation-related costs, an increase of $1.3 million in project material
costs and an increase of $1.1 million in occupancy costs. Research and
development expenses increased $21.2 million for the nine months ended September
30, 2021, compared to the same period in the prior year. The increase was
primarily related to increases of $15.6 million in compensation-related costs,
$3.7 million in project material costs and $2.2 million in occupancy costs. The
acquisition of Photon Control accounted for $1.6 million of the increase in the
three and nine months ended September 30, 2021, compared to the same periods in
the prior year.

Our research and development efforts are primarily focused on developing and
improving our instruments, components, subsystems and process control solutions
to improve process performance and productivity.

We have thousands of products and our research and development efforts primarily
consist of a large number of projects related to these products, none of which
is individually material to us. Current projects typically have durations of 3
to 30 months, depending upon whether the product is an enhancement of existing
technology or a new product. Our products have continuously advanced as we
strive to meet our customers' evolving needs. We have developed, and continue to
develop, new products to address industry trends, such as the shrinking of
integrated circuit critical dimensions and technology inflections, and, in the
flat panel display and solar markets, the transition to larger substrate sizes,
which require more advanced processing and process control technology, the
continuing drive toward more complex and accurate components and devices within
the handset and tablet market, the transition to 5G for both devices and
infrastructure, supporting the growth in units and via counts of the high
density interconnect PCB drilling market, and the industry transition to
electric cars in the automotive market. In addition, we have developed, and
continue to develop, products that support the migration to new classes of
materials, ultra-thin layers, and 3D structures that are used in small geometry
manufacturing. Research and development expenses consist primarily of salaries
and related expenses for personnel engaged in

                                       38

--------------------------------------------------------------------------------

research and development, fees paid to consultants, material costs for prototypes and other expenses related to the design, development, testing and enhancement of our products.





We believe that the continued investment in research and development and ongoing
development of new products are essential to the expansion of our markets. We
expect to continue to make significant investment in research and development
activities. We are subject to risks from products not being developed in a
timely manner, as well as from rapidly changing customer requirements and
competitive threats from other companies and technologies. Our success primarily
depends on our products being designed into new generations of equipment for the
semiconductor industry and advanced technology markets. We develop products that
are technologically advanced so that they are positioned to be chosen for use in
each successive generation of semiconductor capital equipment and advanced
market applications. If our products are not chosen to be designed into our
customers' products, our net revenues may be reduced during the lifespan of
those products.

Selling, General and Administrative





                                        Three Months Ended          Nine Months Ended
                                           September 30,              September 30,
(dollars in millions)                   2021           2020          2021         2020

Selling, general and administrative $ 95.8 $ 87.0 $ 288.9 $ 260.3






Selling, general and administrative expenses increased $8.8 million for the
three months ended September 30, 2021, compared to the same period in the prior
year. The increase was primarily related to an increase of $7.2 million in
compensation-related costs and $2.2 million in commissions expense. Selling,
general and administrative expenses increased $28.6 million for the nine months
ended September 30, 2021, compared to the same period in the prior year. The
increase was primarily related to an increase of $25.7 million in
compensation-related costs and $5.1 million in commissions expense, partially
offset by a decrease of $1.7 million in consulting and professional fees. The
acquisition of Photon Control accounted for $1.7 million of the selling, general
and administrative expense for the three and nine months ended September 30,
2021.


Acquisition and Integration Costs





                                       Three Months Ended           Nine Months Ended
                                          September 30,               September 30,
(dollars in millions)                 2021            2020           2021          2020

Acquisition and integration costs $ 8.6 $ 0.5 $ 20.8 $ 3.4






Acquisition and integration costs during the three months ended September 30,
2021 primarily related to consulting and professional fees related to our
acquisition of Photon Control, which closed in July 2021, and the announced
acquisition of Atotech. Acquisition and integration costs during the nine months
ended September 30, 2021 related to consulting and professional fees in
connection with our recent acquisition of Photon Control, the announced
acquisition of Atotech and our proposed acquisition of Coherent, Inc.
Acquisition and integration costs during the three and nine months ended
September 30, 2020 consisted of integration costs related to the acquisition of
ESI (the "ESI Merger"), consisting primarily of cash bonus and stock-based
compensation for certain ESI executives assisting in the integration process.



Restructuring and Other



                             Three Months Ended           Nine Months Ended
                                September 30,               September 30,
(dollars in millions)       2021            2020          2021           2020

Restructuring and other $ 2.0 $ 3.1 $ 9.9 $ 6.8




Restructuring and other costs during the three and nine months ended September
30, 2021 primarily related to duplicate facility costs attributed to entering
into new leases, severance costs due to a global cost saving initiative,
severance costs relating to the pending closure of two facilities in Europe and
the movement of certain product manufacturing to low cost regions. Restructuring
and other costs during the three and nine months ended September 30, 2020
primarily related to duplicate facility costs attributed to entering into new
leases, costs related to the exit of certain product groups and costs related to
the closure of a facility in Europe. Such costs for the nine months ended
September 30, 2020 were partially offset by an insurance reimbursement related
to a legal settlement.

                                       39

--------------------------------------------------------------------------------

Amortization of Intangible Assets





                                      Three Months Ended          Nine Months Ended
                                         September 30,              September 30,
(dollars in millions)                 2021           2020         2021           2020

Amortization of intangible assets $ 15.0 $ 12.5 $ 40.1

    $ 42.6




Amortization of intangible assets increased by $2.5 million for the three months
ended September 30, 2021, compared to the same period in the prior year,
primarily due to amortization expense from our acquisition of Photon
Control. The decrease in amortization of intangible assets of $2.5 million for
the nine months ended September 30, 2021, compared to the same period in the
prior year, was due to certain intangible assets in our L&M segment that became
fully amortized, partially offset by amortization from our acquisition of Photon
Control.

Interest Expense, Net



                           Three Months Ended           Nine Months Ended
                              September 30,               September 30,
(dollars in millions)     2021            2020          2021           2020

Interest expense, net $ 6.2 $ 6.5 $ 18.7 $ 21.6




Interest expense, net, decreased by $0.3 million and $2.9 million for the three
and nine months ended September 30, 2021, respectively, compared to the same
periods in the prior year, primarily due to lower interest rates and lower
average debt balances as a result of payments made.

Other Expense, Net



                           Three Months Ended           Nine Months Ended
                              September 30,               September 30,
(dollars in millions)     2021            2020           2021          2020
Other expense, net      $     2.9       $     1.1     $     11.5       $ 3.0




Other expense, net, increased by $1.8 million and $8.5 million for the three and
nine months ended September 30, 2021, respectively, compared to the same periods
in the prior year, primarily due to higher foreign exchange and fair value
losses. The nine months ended September 30, 2021 included a fair value loss of
$10.3 million resulting from hedges of the Canadian dollar related to the
funding of our purchase of Photon Control in July 2021.

Provision for Income Taxes





                               Three Months Ended          Nine Months Ended
                                  September 30,              September 30,
(dollars in millions)          2021           2020         2021           2020

Provision for income taxes $ 33.8 $ 17.1 $ 85.7 $ 48.0




Our effective tax rates for the three and nine months ended September 30, 2021
were 20.4% and 17.6%, respectively. Our effective tax rates for each of the
three and nine months ended September 30, 2021 and related income tax expense
were lower than the U.S. statutory tax rate mainly due to the U.S. deduction for
foreign derived intangible income, windfall benefits from stock compensation,
and the geographic mix of income earned by our international subsidiaries being
taxed at rates lower than the U.S. statutory tax rate, offset by the U.S. global
intangible low-taxed income inclusion and additional withholding taxes on
inter-company distributions due to the United Kingdom's withdrawal from the
European Union

On March 11, 2021, President Biden signed into law the American Rescue Plan Act
of 2021 ("ARPA"). The act contains numerous income tax provisions among other
tax and non-tax provisions to provide COVID-19 pandemic relief. We have
evaluated the ARPA legislation in relation to income taxes and we do not expect
the ARPA income tax provisions to have a material impact on our financial
statements in the current year. The ARPA income tax provisions that are
effective in future years are being evaluated and we have not yet determined the
impact on our consolidated financial statements.

On September 15, 2021, the House Ways and Means Committee approved tax
proposals, including a series of corporate and international tax provisions one
of which would increase the corporate tax rate from 21% to 26.5%. If this tax
proposal is enacted in its current form, we expect our income tax expense would
materially increase.

                                       40

--------------------------------------------------------------------------------


As of September 30, 2021 and December 31, 2020, the total amount of gross
unrecognized tax benefits, which excludes interest and penalties, was
approximately $47.3 million and $47.0 million, respectively. We accrue interest
expense, and if applicable, penalties, for any uncertain tax positions. Interest
and penalties are classified as a component of income tax expense. As of
September 30, 2021 and December 31, 2020, we had accrued interest on
unrecognized tax benefits of approximately $0.9 million and $0.7 million,
respectively.

Over the next 12 months it is reasonably possible that we may recognize
approximately $3.8 million of previously net unrecognized tax benefits,
excluding interest and penalties, related to U.S. federal and state as well as
foreign tax positions as a result of the expiration of statutes of limitation.
The U.S. federal statute of limitations remains open for tax years 2017 through
present. The statute of limitations for our tax filings in other jurisdictions
varies between fiscal years 2015 through the present. We also have certain
federal credit carryforwards and state tax loss and credit carryforwards that
are open to examination for tax years 2000 through the present.



On a quarterly basis, we evaluate both positive and negative evidence that affects the realizability of net deferred tax assets and assess the need for a valuation allowance. The future benefit to be derived from our deferred tax assets is dependent upon our ability to generate sufficient future taxable income in each jurisdiction of the right type to realize the assets.



Our future effective tax rate depends on various factors, including the impact
of tax legislation, further interpretations and guidance from U.S. federal and
state governments on the impact of proposed regulations issued by the Internal
Revenue Service, further interpretations and guidance from foreign governments,
the geographic composition of our pre-tax income, and changes in income tax
reserves for unrecognized tax benefits. We monitor these factors and timely
adjust our estimates of the effective tax rate accordingly. We expect that the
geographic mix of pre-tax income will continue to have a favorable impact on our
effective tax rate. However, the geographic mix of pre-tax income can change
based on multiple factors, resulting in changes to the effective tax rate in
future periods. While we believe we have adequately provided for all tax
positions, amounts asserted by taxing authorities could materially differ from
our accrued positions as a result of uncertain and complex application of tax
law and regulations. Additionally, the recognition and measurement of certain
tax benefits include estimates and judgment by management. Accordingly, we could
record additional provisions or benefits for U.S. federal, state, and foreign
tax matters in future periods as new information becomes available.



Liquidity and Capital Resources

On July 15, 2021, we completed our previously announced acquisition of Photon Control. We paid to the former Photon Control securityholders aggregate consideration of CAD 378.6 million or USD 302.7 million, excluding related transaction fees and expenses. We funded the payment of the aggregate consideration with available cash on hand.



Cash and cash equivalents and short-term marketable investments totaled $879.6
million at September 30, 2021, compared to $836.0 million at December 31, 2020.
The primary driver in our current and anticipated future cash flows is and will
continue to be cash generated from operations, consisting primarily of our net
income, excluding non-cash charges and changes in operating assets and
liabilities. In periods when our sales are growing, higher sales to customers
will result in increased trade receivables, and inventories will generally
increase as we build products for future sales. This may result in lower cash
generated from operations. Conversely, in periods when our sales are declining,
our trade accounts receivable and inventory balances will generally decrease,
resulting in increased cash from operations.

Net cash provided by operating activities was $445.2 million for the nine months
ended September 30, 2021 and resulted from net income of $401.2 million, which
included non-cash charges of $126.6 million, offset by a net increase in working
capital of $82.6 million. The net increase in working capital was primarily due
to a decrease in income tax payable of $28.7 million, an increase in trade
accounts receivable of $51.3 million and an increase in inventories of $61.7
million, partially offset by an increase in accounts payable of $38.2 million
and an increase in other current and non-current liabilities of $18.6 million.

Net cash used in investing activities was $351.2 million for the nine months
ended September 30, 2021, including the purchase of Photon Control for $268.4
million, net of cash acquired, the purchases of production-related equipment of
$63.3 million and the net purchases of investments of $19.5 million.

Net cash used in financing activities was $61.7 million for the nine months
ended September 30, 2021 and was primarily due to dividend payments of $35.5
million, net payments on short and long-term borrowings of $11.8 million and net
payments related to tax payments on the vesting of employee stock awards of
$14.4 million.

On July 25, 2011, our Board of Directors approved a share repurchase program for
the repurchase of up to an aggregate of $200 million of our outstanding common
stock from time to time in open market purchases, privately negotiated
transactions or through other appropriate means. The timing and quantity of any
shares repurchased depends upon a variety of factors, including business
conditions, stock market conditions and business development activities,
including but not limited to merger and acquisition opportunities. These
repurchases may be commenced, suspended or discontinued at any time without
prior notice. We have

                                       41

--------------------------------------------------------------------------------


repurchased approximately 2.6 million shares of common stock for approximately
$127 million pursuant to the program since its adoption. During the three and
nine months ended September 30, 2021 and 2020, there were no repurchases of
common stock.

Holders of our common stock are entitled to receive dividends when and if they
are declared by our Board of Directors. In addition, we accrue dividend
equivalents on the restricted stock units we assumed in the ESI Merger when
dividends are declared by our Board of Directors. During the first quarter of
2021, our Board of Directors declared a cash dividend of $0.20 per share. During
each of the second and third quarters of 2021, our Board of Directors declared a
cash dividend of $0.22 per share. The total amount of the dividends declared in
2021 was $35.5 million, or $0.64 per share. During each of the first, second,
and third quarters of 2020, our Board of Directors declared a cash dividend of
$0.20 per share, which totaled $33.0 million, or $0.60 per share.

On October 25, 2021, our Board of Directors declared a quarterly cash dividend
of $0.22 per share to be paid on December 10, 2021 to stockholders of record as
of November 29, 2021.

Future dividend declarations, if any, as well as the record and payment dates
for such dividends, are subject to the final determination of our Board of
Directors. In addition, under the terms of our Term Loan Facility and ABL
Facility, each as defined and described further below, we may be restricted from
paying dividends under certain circumstances.

Senior Secured Term Loan Credit Facility



In connection with the completion of the acquisition of Newport
Corporation ("Newport") in 2016 (the "Newport Merger"), we entered into a term
loan credit agreement (as amended, the "Term Loan Credit Agreement") with
Barclays Bank PLC, as administrative agent and collateral agent, and the lenders
from time to time party thereto, which provided a senior secured term loan
credit facility (the "Term Loan Facility") in the original principal amount of
$780.0 million. We have entered into seven amendments to the Term Loan Credit
Agreement since 2016, including most recently the May Term Loan Amendment (as
defined below). The Term Loan Facility is subject to increase at our option and
subject to receipt of lender commitments in accordance with the Term Loan Credit
Agreement. The maturity date of the Term Loan Facility is February 2, 2026. As
of September 30, 2021, borrowings under the Term Loan Facility     bear interest
per annum at one of the following rates selected by us: (a) a base rate
determined by reference to the highest of (1) the federal funds effective rate
plus 0.50%, (2) the "prime rate" quoted in The Wall Street Journal, (3) a London
Interbank Offered Rate ("LIBOR") rate determined by reference to the costs of
funds for U.S. dollar deposits for an interest period of one month adjusted for
certain additional costs, plus 1.00%, and (4) a floor of 1.00%, plus, in each
case, an applicable margin of 0.75%; or (b) a LIBOR rate determined by reference
to the costs of funds for U.S. dollar deposits for the interest period relevant
to such borrowing adjusted for certain additional costs, subject to a LIBOR rate
floor of 0.0%, plus an applicable margin of 1.75%. We have elected the interest
rate as described in clause (b) of the foregoing sentence. The Term Loan Credit
Agreement provides that, unless an alternate rate of interest is agreed, all
loans will be determined by reference to the base rate if the LIBOR rate cannot
be ascertained, if regulators impose material restrictions on the authority of a
lender to make LIBOR rate loans, or for other reasons.

In May 2021, we entered into an amendment (the "May Term Loan Amendment") to the
Term Loan Credit Agreement. The May Term Loan Amendment amends the Term Loan
Facility to, among other things, (i) increase our ability to incur additional
incremental debt facilities to (x) the greater of (1) $600.0 million and (2)
100% of consolidated EBITDA, plus (y) an amount equal to the sum of all
voluntary prepayments of term loans under the Term Loan Facility, plus (z) an
additional unlimited amount subject to pro forma compliance with a secured
leverage ratio test of 3.25:1.00, and (ii) increase our flexibility under
certain debt, lien, investment, restricted payment and disposition baskets. The
fees incurred, including certain customary lender consent fees, in connection
with the May Term Loan Amendment were immaterial.

As of September 30, 2021, we have incurred an aggregate amount of $42.6 million
of deferred finance fees, original issue discount and repricing fees related to
the term loans under the Term Loan Facility, which are included in long-term
debt in the accompanying condensed consolidated balance sheets and are being
amortized to interest expense over the estimated life of the term loans using
the effective interest method. As of September 30, 2021, the remaining balance
of deferred finance fees, original issue discount and repricing fees related to
the term loans under the Term Loan Facility was $8.0 million. A portion of the
deferred finance fees, original issue discount and repricing fees have been
accelerated in connection with the various debt prepayments and amendments
between 2016 and 2021.

We are required to make scheduled quarterly amortization payments each equal to 0.25% of the original principal amount of the Term Loan Facility.



As of September 30, 2021, after giving effect to all amendments and repayments
prior to such date, the outstanding principal amount of the Term Loan Facility
was $826.7 million, and the interest rate was 1.8%.

Under the Term Loan Credit Agreement, we are required to prepay outstanding term
loans, subject to certain exceptions, with portions of our annual excess cash
flow as well as with the net cash proceeds of certain of our asset sales,
certain casualty and condemnation events and the incurrence or issuance of
certain debt.

                                       42

--------------------------------------------------------------------------------


All obligations under the Term Loan Facility are guaranteed by certain of our
domestic subsidiaries and are secured by substantially all of our assets and the
assets of such subsidiaries, subject to certain exceptions and exclusions.

The Term Loan Credit Agreement contains customary representations and
warranties, affirmative and negative covenants and provisions relating to events
of default. If an event of default occurs, the lenders under the Term Loan
Facility will be entitled to take various actions, including the acceleration of
amounts due under the Term Loan Facility and all actions generally permitted to
be taken by a secured creditor. At September 30, 2021, we were in compliance
with all covenants under the Term Loan Credit Agreement.

Interest Rate Swap Agreements





We entered into various interest rate swap agreements as described further in
Note 6 to the Condensed Consolidated Financial Statements that exchange the
variable LIBOR interest rate to a fixed rate in order to manage the exposure to
interest rate fluctuations associated with the variable LIBOR interest rate paid
on the outstanding balance of the Term Loan Facility.

Senior Secured Asset-Based Revolving Credit Facility



In February 2019, in connection with the completion of the ESI Merger, we
entered into an asset-based revolving credit agreement with Barclays Bank PLC,
as administrative agent and collateral agent, the other borrowers from time to
time party thereto, and the lenders and letters of credit issuers from time to
time party thereto (the "ABL Credit Agreement"), that provides a senior secured
asset-based revolving credit facility of up to $100.0 million, subject to a
borrowing base limitation (the "ABL Facility"). We have entered into two
amendments to the ABL Credit Agreement since 2019. As of September 30, 2021,
after giving effect to all amendments, the borrowing base for the ABL Facility
at any time equals the sum of: (a) 85% of certain eligible accounts; plus
(b) prior to certain notice and field examination and appraisal requirements,
the lesser of (i) 20% of net book value of eligible inventory in the United
States and (ii) 30% of the borrowing base, and after the satisfaction of such
requirements, the lesser of (i) the lesser of (A) 65% of the lower of cost or
market value of certain eligible inventory and (B) 85% of the net orderly
liquidation value of certain eligible inventory and (ii) 30% of the borrowing
base; minus (c) reserves established by the administrative agent, in each case,
subject to additional limitations and examination requirements for eligible
accounts and eligible inventory acquired in an acquisition after February 1,
2019. The ABL Facility includes borrowing capacity in the form of letters of
credit up to $25.0 million. We have not borrowed against the ABL Facility to
date.

As of September 30, 2021, any borrowings under the ABL Facility bear interest at
a rate per annum equal to, at our option, any of the following, plus, in each
case, an applicable margin: (a) a base rate determined by reference to the
highest of (1) the federal funds effective rate plus 0.50%, (2) the "prime rate"
quoted in The Wall Street Journal, (3) a LIBOR rate determined by reference to
the costs of funds for U.S. dollar deposits for an interest period of one month
adjusted for certain additional costs, plus 1.00% and (4) a floor of 0.00%,
plus, in each case, an applicable margin ranging from 0.25% to 0.50%; and (b) a
LIBOR rate determined by reference to the costs of funds for U.S. dollar
deposits for the interest period relevant to such borrowing adjusted for certain
additional costs, with a floor of 0.00%, plus, in each case, an applicable
margin ranging from 1.25% to 1.50%. The applicable margin for borrowings
thereunder is subject to upward or downward adjustment each fiscal quarter,
based on the average historical excess availability during the preceding
quarter.

In addition to paying interest on any outstanding principal under the ABL Facility, we are required to pay a commitment fee in respect of the unutilized commitments thereunder equal to 0.25% per annum. We must also pay customary letter of credit fees and agency fees.



Under the ABL Facility, we are required to prepay amounts outstanding under the
ABL Facility (1) if amounts outstanding under the ABL Facility exceed the lesser
of (a) the commitment amount and (b) the borrowing base, in an amount required
to reduce such shortfall, (2) if amounts outstanding under the ABL Facility in
any currency other than U.S. dollars exceed the sublimit for such currency, in
an amount required to reduce such shortfall, and (3) during any period in which
we have excess availability less than the greater of (a) 10.0% of the lesser of
(x) the commitment amount and (y) the borrowing base (the "Line Cap") and (b)
$8.5 million for 3 consecutive business days, until the time when we have excess
availability equal to or greater than the greater of (A) 10.0% of the Line Cap
and (B) $8.5 million for 30 consecutive days, or during the continuance of an
event of default, with immediately available funds in our blocked accounts.

There is no scheduled amortization under the ABL Facility. Any principal amount
outstanding under the ABL Facility is due and payable in full on the fifth
anniversary of the closing date, subject to a springing maturity in the event
that term loans under the Term Loan Facility in an aggregate amount of at least
$100.0 million have an earlier maturity date than the ABL Facility.

All obligations under the ABL Facility are guaranteed by certain of our domestic
subsidiaries and are secured by substantially all of our assets and the assets
of such subsidiaries, subject to certain exceptions and exclusions.

                                       43

--------------------------------------------------------------------------------


From the time when we have excess availability less than the greater of (a)
10.0% of the Line Cap and (b) $8.5 million until the time when we have excess
availability equal to or greater than the greater of (a) 10.0% of the Line Cap
and (b) $8.5 million for 30 consecutive days, or during the continuance of an
event of default, the ABL Credit Agreement requires that we maintain a fixed
charge coverage ratio, tested on the last day of each fiscal quarter, of at
least 1.0 to 1.0.

The ABL Credit Agreement also contains customary representations and warranties,
affirmative covenants and provisions relating to events of default. If an event
of default occurs, the lenders under the ABL Facility will be entitled to take
various actions, including the acceleration of amounts due under the ABL
Facility and all actions permitted to be taken by a secured creditor.

Lines of Credit and Borrowing Arrangements



Our Japanese subsidiaries have lines of credit and a financing facility with
various financial institutions, many of which generally expire and are renewed
at three-month intervals with the remaining having no expiration date. The lines
of credit and financing facility provided for aggregate borrowings as of
September 30, 2021 of up to an equivalent of $29.9 million U.S. dollars. There
were no borrowings outstanding under these arrangements at September 30, 2021.
Total borrowings outstanding under these arrangements were $5.5 million at
December 31, 2020.

Atotech Acquisition



On July 1, 2021, we entered into an Implementation Agreement to acquire Atotech,
a leading process chemicals technology company and a market leader in advanced
electroplating solutions. Pursuant to the Implementation Agreement, we agreed to
pay $16.20 per share in cash and 0.0552 of a share of our common stock for each
outstanding common share of Atotech, for total cash and stock consideration of
approximately $5.1 billion. The acquisition is expected to close by the end of
2021, subject to the satisfaction of certain closing conditions, including
receipt of required regulatory approvals, approval by the Royal Court of Jersey
and approval by Atotech's shareholders. Our obligations to complete the
acquisition are not subject to any financing condition. Additional information
regarding the funding of the acquisition and the related syndication of the New
Term Loan Facility is discussed under "Recent Events" above.

Off-Balance Sheet Arrangements



We do not have any financial partnerships with unconsolidated entities, such as
entities often referred to as structured finance, special purpose or variable
interest entities, which are often established for the purpose of facilitating
off-balance sheet arrangements or for other contractually narrow or limited
purposes. Accordingly, we have no off-balance sheet arrangements that have or
are reasonably expected to have a current or future effect on our financial
condition, changes in financial condition, revenues or expenses, results of
operations, liquidity, capital expenditures or capital resources that are
material to investors.

Contractual Obligations



There have been no other changes outside the ordinary course of business to our
contractual obligations as disclosed in our Annual Report on Form 10-K for the
year ended December 31, 2020.

Recently Issued Accounting Pronouncements



In October 2021, the Financial Accounting Standards Board ("FASB") issued
Accounting Standards Update ("ASU") 2021-08, "Business Combinations (Topic 805):
Accounting for Contract Assets and Contract Liabilities from Contracts with
Customers" ("ASU No. 2021-08"). ASU No. 2021-08 will require companies to apply
the definition of a performance obligation under ASC Topic 606 to recognize and
measure contract assets and contract liabilities (i.e., deferred revenue)
relating to contracts with customers that are acquired in a business
combination. Under current U.S. GAAP, an acquirer generally recognizes assets
acquired and liabilities assumed in a business combination, including contract
assets and contract liabilities arising from revenue contracts with customers,
at fair value on the acquisition date. ASU No. 2021-08 will result in the
acquirer recording acquired contract assets and liabilities on the same basis
that would have been recorded by the acquiree before the acquisition under ASC
Topic 606. ASU No. 2021-08 is effective for fiscal years beginning after
December 15, 2022, with early adoption permitted. We are currently evaluating
the impact of this ASU on our financial statements.

In March 2020, the FASB issued ASU 2020-04, "Reference Rate Reform (Topic 848):
Facilitation of the Effects of Reference Rate Reform on Financial Reporting."
This standard provides temporary optional expedients and exceptions to
accounting guidance on contract modifications and hedge accounting to ease
entities' financial reporting burdens, as the market transitions from the LIBOR
and other interbank offered rates to alternative reference rates. The standard
was effective upon issuance and generally can be applied through December 31,
2022. In January 2021, the FASB issued ASU 2021-01, "Reference Rate Reform
(Topic 848): Scope." The amendments in this update clarify that certain optional
expedients and exceptions in Topic 848 for contract modifications and hedge
accounting apply to derivative instruments that use an interest rate for
margining, discounting, or contract price alignment that is

                                       44

--------------------------------------------------------------------------------


modified as a result of reference rate reform. Amendments in this update to the
expedients and exceptions in Topic 848 capture the incremental consequences of
the scope clarification and tailor the existing guidance to derivative
instruments affected by the discounting transition. The amendments in this
update do not apply to contract modifications made after December 31, 2022, new
hedging relationships entered into after December 31, 2022, and existing hedging
relationships evaluated for effectiveness in periods after December 31, 2022,
except for hedging relationships existing as of December 31, 2022, that apply
certain optional expedients in which the accounting effects are recorded through
the end of the hedging relationship (including periods after December 31,
2022). Our adoption of the requirements of these standards has not resulted in a
material impact on our financial position, results of operations and cash flows,
but the adoption of the requirements may impact us in the future.



                                       45

--------------------------------------------------------------------------------

© Edgar Online, source Glimpses