Ultra Clean Holdings, Inc. - Annual Report: 2010 (Form 10-K)

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-K

(Mark One)

For the fiscal year ended December 31, 2010

OR

For the transition period from             to             

Commission file number 000-50646

Ultra Clean Holdings, Inc.

(Exact name of Registrant as specified in its charter)

Registrant’s telephone number, including area code:

(510) 576-4400

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

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  x

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  x

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  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted 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 and post such files).    Yes  ¨    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  ¨

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

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

The aggregate market value of the voting and non-voting stock held by non-affiliates of the Registrant, based on the closing sale price of the Registrant’s common stock on February 28, 2011 as reported on the NASDAQ Global Market, was approximately $237.6 million. Shares of common stock held by each executive officer and director and by each person who may be deemed to be an affiliate of the Registrant have been excluded from this computation. The determination of affiliate status for this purpose is not necessarily a conclusive determination for other purposes.

Number of shares of the registrant’s common stock outstanding as of February 28, 2011: 22,612,918

Portions of the registrant’s definitive proxy statement to be delivered to stockholders in connection with the 2010 annual meeting of stockholders are incorporated by reference in Part III of this Form 10-K.

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PART I

This Annual Report on Form 10-K contains forward-looking statements regarding future events and our future results. These statements are based on current expectations, estimates, forecasts, and projections about the industries in which we operate and the beliefs and assumptions of our management. Words such as “expects,” “anticipates,” “targets,” “goals,” “projects,” “intends,” “plans,” “believes,” “seeks,” “estimates,” “continues,” “may,” variations of such words, and similar expressions are intended to identify such forward-looking statements. These forward-looking statements include, but are not limited to, statements concerning the following: projections of our financial performance, our anticipated growth and trends in our business, levels of capital expenditures, the adequacy of our capital resources to fund operations and growth, our ability to compete effectively with our competitors, our strategies and ability to protect our intellectual property, future acquisitions, customer demand, our manufacturing and procurement process, employee matters, supplier relations, foreign operations (including our operations in China and Singapore), the legal and regulatory backdrop (including environmental regulation), our exposure to market risks and other characterizations of future events or circumstances described in this Annual Report. Readers are cautioned that these forward-looking statements are only predictions and are subject to risks, uncertainties, and assumptions that are difficult to predict, including those identified below, under “Risk Factors,” and elsewhere herein. Therefore, actual results may differ materially and adversely from those expressed in any forward-looking statements. We undertake no obligation to revise or update any forward-looking statements for any reason.

Overview

We are a leading developer and supplier of critical subsystems, primarily for the semiconductor capital equipment industry. We also leverage the specialized skill sets required to support semiconductor capital equipment to serve the technologically similar markets in the flat panel, medical, energy and research industries, collectively referred to as “Other Addressed Industries”. We develop, design, prototype, engineer, manufacture and test subsystems which are highly specialized and tailored to specific steps in the semiconductor manufacturing process as well as the manufacturing processes in Other Addressed Industries. Our revenue is derived from the sale of gas delivery systems and other critical subsystems including chemical mechanical planarization (CMP) subsystems, chemical delivery modules, top-plate assemblies, frame assemblies, process modules and other high level assemblies.

Our customers are primarily original equipment manufacturers (OEMs) in the industries we support. We provide our customers complete subsystem solutions that combine our expertise in design, test, component characterization and highly flexible manufacturing operations with quality control and financial stability. This combination helps us to drive down total manufacturing costs, reduce design-to-delivery cycle times and maintain high quality standards for our customers. We believe these characteristics, as well as our standing as a leading supplier of gas delivery systems and other critical subsystems, place us in a strong position to benefit from the growing demand for subsystem outsourcing.

We had sales of $443.1 million, $159.8 million and $266.9 million for the years ended 2010, 2009 and 2008, respectively. Historically, our largest customers have been Applied Materials, Inc., Intuitive Surgical, Inc., Lam Research Corporation and Novellus, Inc. To date, we have shipped substantially all of our products to customers in the United States. We conduct our operating activities primarily through our wholly owned subsidiaries, Ultra Clean Technology Systems and Service, Inc., Ultra Clean Technology (Shanghai) Co., Ltd., Ultra Clean Micro-Electronics Equipment (Shanghai) Co., Ltd. and Ultra Clean Asia Pacific, Pte Ltd. (Singapore). Our international sales represented 9.8%, 2.2% and 1.8% of sales for the years ended December 31, 2010, January 1, 2010 and January 2, 2009, respectively.

Ultra Clean Holdings, Inc. (Ultra Clean) was founded in November 2002 for the purpose of acquiring Ultra Clean Technology Systems and Service Inc. Ultra Clean Technology Systems and Service, Inc. was founded in

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1991 by Mitsubishi Corporation and was operated as a subsidiary of Mitsubishi until November 2002, when it was acquired by Ultra Clean Holdings, Inc. Ultra Clean Holdings, Inc. became a publicly traded company in March 2004. In June 2006, we completed the acquisition of Sieger Engineering, Inc. to better enhance our position as a subsystem supplier to the semiconductor, research, flat panel, energy and medical equipment industries. Ultra Clean Technology (Shanghai) Co., Ltd and Ultra Clean Micro-Electronics Equipment (Shanghai) Co., Ltd. were established in 2005 and 2007, respectively, to facilitate our operations in China. Ultra Clean Asia Pacific, Pte, Ltd., was established in fiscal 2008 to facilitate our operations in Singapore.

Our Solution

We are a leading developer and supplier of critical subsystems for the semiconductor capital equipment industry and Other Addressed Industries. Our products enable our OEM customers to realize lower manufacturing costs and reduced design-to-delivery cycle times while maintaining quality standards. We offer our customers:

An integrated outsourced solution for gas delivery systems and other critical subsystems. We provide our OEM customers a complete outsourced solution for the development, design, prototyping, engineering, manufacturing and testing of advanced gas delivery systems and other critical subsystems. We combine highly specialized engineering and manufacturing capabilities to produce high performance products that are customized to meet the needs of our customers, as well as their respective end users. We manage supply chain logistics in an effort to reduce the overall number of suppliers and inventory levels that our customers would otherwise be required to manage. We also believe we are often in a position to negotiate reduced component prices due to our large volume orders.

Improved design-to-delivery cycle times. Our strong relationships with our customers and intimate familiarity with their products and requirements help us reduce design-to-delivery cycle times for gas delivery systems or other critical subsystems. We have optimized our supply chain management, design and manufacturing coordination and controls to respond rapidly to order requests, enabling us to decrease design-to-delivery cycle times for our customers.

Component neutral design and manufacturing. We do not manufacture any of the components within our gas delivery systems and other critical subsystems ourselves. Our component neutral position enables us to recommend components on the basis of technology, performance and cost and to optimize our customers’ overall designs based on these criteria. Furthermore, our neutral approach allows us to maintain close relationships with a wide range of component suppliers.

Component testing capabilities. We utilize our engineering expertise to test and characterize key components and subsystems. We have made significant investments in advanced analytical and automated test equipment to test and qualify key components. We can perform diagnostic tests, design verification and failure analysis for customers and suppliers. Our analytical and testing capabilities enable us to evaluate multiple supplier component technologies and provide customers with a wide range of appropriate component and design choices for their subsystems.

Increased integration with OEMs through local presence. Our local presence in close proximity to the facilities of most of our OEM customers enables us to remain closely integrated with their design, development and implementation teams. This level of integration enables us to respond quickly and efficiently to customer changes and requests.

Precision machining capabilities. We manufacture high quality, precision machined parts using state of the art equipment capable of efficiently providing complex parts with exacting tolerance. Our diverse precision fabrication equipment enables us to manufacture a broad range of machined parts using a broad range of

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materials, from exotic metals to basic plastics. Our manufacturing capabilities include horizontal and vertical milling, turning and welding.

Our Strategy

Our objective is to maintain our position as a leading developer and supplier of gas delivery systems and become a leading developer and supplier of other critical subsystems, primarily for the semiconductor capital equipment and Other Addressed Industries. Our strategy is comprised of the following key elements:

Continue to expand our market share with Semiconductor Capital Equipment OEMs. We believe that the increase in outsourcing among OEMs creates a significant market opportunity for us to grow our business with existing and new customers. While gas delivery systems are already largely outsourced, we believe our customers will continue to outsource other critical subsystems at a rapid pace and that we are well positioned to capture a significant portion of these new outsourcing opportunities. We believe that our continued focus on efficient manufacturing, reduced design-to-delivery cycle times and quality and reliability will also allow us to gain market share.

Continue to expand our market share in Other Addressed Markets: We believe we can leverage the attributes and skill sets which allow us to succeed in the Semiconductor Capital Equipment industry to increase our market share in technologically similar markets including research, flat panel, energy and medical equipment.

Leverage our expanding geographic presence in lower cost manufacturing regions. In March 2005, we completed construction of a manufacturing facility in Shanghai, China, allowing us to expand production in a low cost region. In November 2007, we completed construction of a second manufacturing facility in Shanghai, China to house our precision machined parts and subsystem assembly operations. These facilities put us in close proximity to the manufacturing facilities of potential customers and their end users. In Singapore, we opened a procurement office in October 2008 and in November 2009, we expanded our operations by opening a manufacturing facility.

Drive profitable growth with our flexible cost structure. We implement cost containment and capacity enhancement initiatives throughout the semiconductor capital equipment demand cycle and benefit greatly from our supply chain efficiencies. In addition, we believe our Shanghai and Singapore facilities position us to respond effectively to future business demands.

Continue to selectively pursue strategic acquisitions.

We may choose to further accelerate the growth of our business by selectively pursuing strategic acquisitions. We will continue to consider acquisitions that will enable us to expand our geographic presence, secure new customers and diversify into complementary products and markets as well as broaden our technological capabilities in semiconductor capital equipment manufacturing.

Products

We develop, design, prototype, engineer, manufacture and test subsystems, primarily for the semiconductor capital equipment, flat panel, medical, energy and research industries. A majority of our products consist of gas delivery systems that enable the precise delivery of numerous specialty gases used in a majority of the key steps in the semiconductor manufacturing process, including deposition, etch, cleaning and annealing. Our gas delivery systems control the flow, pressure, sequencing and mixing of specialty gases into and out of the reaction chambers of semiconductor manufacturing tools. Our products also include other critical subsystems, including chemical mechanical planarization modules, chemical delivery modules, top-plate assemblies, frame assemblies and process modules.

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Gas delivery systems: A typical gas delivery system consists of one or more gas lines, comprised of several filters, mass flow controllers, regulators, pressure transducers and valves, associated interconnect tubing and an integrated electronic and/or pneumatic control system. These systems are mounted on a pallet and are typically enclosed in a sheet metal encasing. Our gas delivery system designs are developed in collaboration with our customers and are customized to meet the needs of specific OEMs. We do not sell standard systems. Our customers either specify the particular brands of components they want incorporated into a particular system or rely on our design expertise and component characterization capabilities to help them select the appropriate components for their particular system.

Chemical delivery modules: Chemical delivery modules deliver gases and reactive chemicals from a centralized subsystem to the reaction chamber and may include gas delivery systems, as well as liquid and vapor delivery systems.

Top-plate assemblies: Top-plate assemblies form the top portion of the reaction chamber within which gases controlled by our gas delivery systems react to form thin films or etch films on the wafer.

Frame assemblies: Frame assemblies are steel tubing that form the support structure to which all other assemblies are attached and include pneumatic harnesses and cables that connect other critical subsystems together.

Process modules: Process modules refer to the larger subsystems of semiconductor manufacturing tools that process integrated circuits onto wafers. Process modules include several smaller subsystems such as the frame assembly, top-plate assembly and gas and chemical delivery modules, as well as the chamber and electronic, pneumatic and mechanical subsystems.

Other high level assemblies: Other high level assemblies refer to large subsystems used in semiconductor manufacturing, research, flat panel, energy and medical equipment industries.

Customers

We sell our products to semiconductor capital equipment, flat panel, medical, energy and research industries. The majority of our revenue is in the semiconductor capital equipment industry, which is highly concentrated, and we are therefore highly dependent upon a small number of customers. Our three largest customers in 2010 were Applied Materials, Inc., Lam Research Corporation and Novellus Systems, Inc., two of which accounted for more than 10% of our total sales in 2010. Our three largest customers in 2009 and 2008 were Applied Materials, Inc., Intuitive Surgical, Inc., and Lam Research Corporation, each of which accounted for more than 10% of our total sales in each respective year. As a group, these three customers accounted for 72%, 79% and 81% of the Company’s sales for 2010, 2009 and 2008, respectively. The level of our customer concentration has slightly declined in recent years due to our growth into adjacent markets (HB LED and energy), a trend which we expect to continue as we reinforce and expand our relationship with new, potentially significant customers.

We have successfully qualified as a supplier with each of our customers. This lengthy qualification process involves the inspection and audit of our facilities and evaluation by our customers of our engineering, documentation, manufacturing and quality control processes and procedures before that customer places orders for our products. Our customers generally place orders with suppliers who have met and continue to meet their qualification criteria.

Sales and Support

We sell our products through our direct sales force which, as of December 31, 2010, consisted of a total of approximately 50 sales directors, account managers and sales support staff. Our sales directors are responsible for establishing sales strategy and setting the objectives for specific customer accounts. Each account manager is

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dedicated to a specific customer account and is responsible for the day-to-day management of that customer. Account managers work closely with customers and in many cases provide on-site support. Account managers often attend customers’ internal meetings related to production and engineering design and quality to ensure that customer expectations are interpreted and communicated properly to our operations group. Account managers also work with our customers to identify and meet their cost and design-to-delivery cycle time objectives.

We have dedicated account managers responsible for new business development for gas delivery systems and other critical subsystems. Our new business development account managers initiate and develop long-term, multilevel relationships with customers and work closely with customers on new business opportunities throughout the design-to-delivery cycle. Our sales force includes technical sales support for order placement, spare parts quotes and production status updates. We have a technical sales representative located at each of our manufacturing facilities. In addition, we have developed a service and support infrastructure to provide our customers with service and support 24 hours a day, seven days a week. Our dedicated field service engineers provide customer support through the performance of on-site installation, servicing and repair of our subsystems.

Technology Development

We engage in ongoing technology development efforts in order to remain a technology leader for gas delivery systems and to further develop our expertise in other critical subsystems. In addition, our design engineering and new product engineering groups support our technology development activities. Our technology development group works closely with our customers to identify and anticipate changes and trends in next-generation equipment. Our technology development group participates in customer technology partnership programs that focus on process application requirements for gas delivery systems and other critical subsystems. These development efforts are designed to meet specific customer requirements in the areas of subsystem design, materials, component selection and functionality. Our technology development group also works directly with our suppliers to help them identify new component technologies and make necessary changes in, and enhancements to, the components that we integrate into our products. Our analytical and testing capabilities enable us to evaluate multiple supplier component technologies and provide customers with a wide range of appropriate component and design choices for their gas delivery systems and other critical subsystems. Our analytical and testing capabilities also help us anticipate technological changes and the requirements in component features for next-generation gas delivery systems and other critical subsystems. We are also developing additional features to improve the performance and functionality of our gas delivery systems and other critical subsystems. Our technology development and new product engineering expenses were approximately $5.5 million, $3.2 million and $2.9 million for the 2010, 2009 and 2008 fiscal years, respectively. We perform our technology development activities principally at our facilities in Hayward, California.

Intellectual Property

Our success depends in part on our ability to maintain and protect our proprietary technology and to conduct our business without infringing the proprietary rights of others. Our business is largely dependent upon our design, engineering, manufacturing and testing know-how. We also rely on a combination of trade secrets and confidentiality provisions, and to a much lesser extent, patents, copyrights and trademarks, to protect our proprietary rights. As of December 31, 2010, we had six issued United States patents, all of which expire in 2018, and we had six United States patent applications pending. None of our issued patents are material to our business. Intellectual property that we develop on behalf of our customers is generally owned exclusively by those customers.

We routinely require our employees, suppliers and potential business partners to enter into confidentiality and non-disclosure agreements before we disclose to them any sensitive or proprietary information regarding our products, technology or business plans. We require employees to assign to us proprietary information, inventions and other intellectual property they create, modify or improve.

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Competition

Our industry is highly fragmented. When we compete for new business, we face competition from other suppliers of gas delivery systems and other critical subsystems as well as the internal manufacturing groups of OEMs. In addition, OEMs that have elected to outsource their gas delivery systems and other critical subsystems could elect in the future to develop and manufacture these subsystems internally, leading to further competition. Our principal competitors for our gas delivery systems are Ichor Systems, Inc., Advanced Integration Technologies, Precision Flow Technologies (PFT) and Intega, a subsidiary of Air Liquide, and our principal competitors for other critical subsystems are Flextronics International Ltd., Fox Semicon Integrated Technology Inc. and Sanmina-SCI Corporation. Some of these competitors have substantially greater financial, technical, manufacturing and marketing resources than we do. We expect our competitors to continue to improve the performance of their current products and to introduce new products or new technologies that could adversely affect sales of our current and future products. In addition, the limited number of potential customers in our industry further intensifies competition. The primary competitive factors in our industry are price, technology, quality, design-to-delivery cycle time, reliability in meeting product demand, service and historical customer relationships. We anticipate that increased competitive pressures will cause intensified price-based competition and we may have to reduce the prices of our products. In addition, we expect to face new competitors as we enter new markets.

Employees

As of December 31, 2010, we had 1,241 employees, of which 203 were temporary. Of our total employees, there were 79 in engineering, 12 in technology development, 53 in sales and support, 788 in direct manufacturing, 217 in indirect manufacturing and 92 in executive and administrative functions. These figures include 394 employees in Shanghai, China and 56 employees in Singapore. None of our employees is represented by a labor union and we have not experienced any work stoppages.

Governmental Regulation and Environmental Matters

Our operations are subject to federal, state and local regulatory requirements and foreign laws relating to environmental, waste management and health and safety matters, including measures relating to the release, use, storage, treatment, transportation, discharge, disposal and remediation of contaminants, hazardous substances and wastes, as well as practices and procedures applicable to the construction and operation of our facilities. Our past or future operations may result in exposure to injury or claims of injury by employees or the public which may result in material costs and liabilities to us. Although some risk of costs and liabilities related to these matters is inherent in our business, we believe that our business is operated in substantial compliance with applicable regulations. However, new, modified or more stringent requirements or enforcement policies could be adopted, which could adversely affect us.

Available Information

We file with the Securities and Exchange Commission (“SEC”) annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, or the Exchange Act. You may read and copy any materials we file with the SEC at the public reference facilities maintained by the SEC at Room 1024, Judiciary Plaza, 100 F Street, N.E., Washington, D.C. 20549. You may also request copies of all or any portion of such material from the SEC at prescribed rates. Please call the SEC at 1-800-SEC-0330 for further information on the operation of the public reference room. In addition, materials filed electronically with the SEC are available at the SEC’s website at http://www.sec.gov.

In addition, we make available free of charge, on or through our website at http://www.uct.com, our annual, quarterly and current reports and any amendments to those reports, as soon as reasonably practicable after electronically filing such reports with, or furnishing them to, the SEC. This website address is intended to be an

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inactive textual reference only; none of the information contained on our website is part of this report or is incorporated by reference herein.

Executive Officers

Set forth below is information concerning our executive officers as of February 28, 2011:

Clarence L. Granger has served as our Chairman & Chief Executive Officer since October 2006, as our Chief Executive Officer since November 2002, as Chief Operating Officer from March 1999 to November 2002 and as a member of our board of directors since May 2002. Mr. Granger served as our Executive Vice President and Chief Operating Officer from January 1998 to March 1999 and as our Executive Vice President of Operations from April 1996 to January 1998. Prior to joining Ultra Clean in April 1996, he served as Vice President of Media Operations for Seagate Technology from 1994 to 1996. Prior to that, Mr. Granger worked for HMT Technology as Chief Executive Officer from 1993 to 1994, as Chief Operating Officer from 1991 to 1993 and as President from 1989 to 1994. Prior to that, Mr. Granger worked for Xidex as Vice President and General Manager, Thin Film Disk Division, from 1988 to 1989, as Vice President, Santa Clara Oxide Disk Operations, from 1987 to 1988, as Vice President, U.S. Tape Operations, from 1986 to 1987 and as Director of Engineering from 1983 to 1986. Mr. Granger holds a master of science degree in industrial engineering from Stanford University and a bachelor of science degree in industrial engineering from the University of California at Berkeley.

Dr. Gino Addiego has served as President and Chief Operating Officer since March 8, 2011. Dr. Addiego joined Ultra Clean with over 22 years of executive experience in the semiconductor capital equipment industry. Before joining Ultra Clean, Dr. Addiego was at Novellus Systems for six years where he most recently held the position of Executive Vice President and Chief Administrative Officer and previously, Executive Vice President of Corporate Operations. Prior to joining Novellus, Dr. Addiego spent more than nine years at Applied Materials, where he was responsible for global operations (including manufacturing, supply chain, and facilities), all of the semiconductor product groups, central engineering, and information technology. Dr. Addiego has also worked at KLA-Tencor and Photon Dynamics. Dr. Addiego received both his bachelor’s and doctorate degrees in Electrical Engineering from the University of California, Berkeley. He holds seven patents and was nominated for the National Inventor of the Year Award in 1993.

Kevin C. Eichler has served as our Senior Vice President and Chief Financial Officer since July 2009. Prior to joining Ultra Clean, Mr. Eichler served on the Board of Directors of Ultra Clean from February 2004 to July 2009. Mr. Eichler was the Senior Vice President and Chief Financial Officer of Credence Systems from January 2008 to November 2008, and the Executive Vice President of Operations and Chief Financial Officer of MarketTools from March 2006 to December 2007. He served as the Vice President and Chief Financial Officer of MIPS Technologies from June 1998 to February 2006. Prior to that, he held management positions with several technology companies including Visigenic Software, NeXT Software and Microsoft. Mr. Eichler is on the board of directors of SupportSoft, Inc. (Nasdaq: SPRT) and Magma Design Automation, Inc. (Nasdaq: LAVA). Mr. Eichler holds a bachelor of science degree in accounting from St. John’s University.

Bruce Wier has served as our Senior Vice President of Engineering since January 2007 and Vice President of Engineering since February 2000. Mr. Wier served as our Director of Design Engineering from July 1997 to February 2000. Prior to joining Ultra Clean in July 1997, Mr. Wier was the Engineering Manager for the Oxide

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Etch Business Unit at Lam Research from April 1993 to June 1997. Prior to that, Mr. Wier was the Senior Project Engineering Manager at Genus from May 1990 to April 1993, the Mechanical Engineering Manager at Varian Associates from November 1985 to May 1990, and the Principal Engineer/Project Manager at Eaton Corporation from February 1981 to November 1985. Mr. Wier holds a bachelor of science degree cum laude in mechanical engineering from Syracuse University.

Deborah Hayward has served as our Senior Vice President of Sales since January 2007 and Vice President of Sales since October 2002. Ms. Hayward served as our Senior Sales Director from May 2001 to October 2002, as Sales Director from February 1998 to May 2001 and as a major account manager from October 1995 to February 1998. Prior to joining Ultra Clean in 1995, she was a customer service manager and account manager at Brooks Instruments from 1985 to 1995.

We may not be able to respond quickly enough to increases in demand for our products.

Demand shifts in the industries we serve are rapid and difficult to predict, and we may not be able to respond quickly enough to an increase in demand. Our ability to increase sales of our products depends, in part, upon our ability to:

If we are unable to respond to rapid increases in demand for our products on a timely basis or to manage any corresponding expansion of our manufacturing capacity effectively, our customers could increase their purchases from our competitors, which would adversely affect our business.

Our dependence on our suppliers may prevent us from delivering an acceptable product on a timely basis.

We rely on both single-source and sole-source suppliers, some of whom are relatively small, for many of the components we use in our products. In addition, our customers often specify components of particular suppliers that we must incorporate into our products. Our suppliers are under no obligation to provide us with components. As a result, the loss of or failure to perform by any of these providers could adversely affect our business and operating results. In addition, the manufacturing of certain components and subsystems is an extremely complex process. Therefore, if a supplier were unable to provide the volume of components we require on a timely basis and at acceptable prices, we would have to identify and qualify replacements from alternative sources of supply. The process of qualifying new suppliers for these complex components is lengthy and could delay our production, which would adversely affect our business, operating results and financial condition. We may also experience difficulty in obtaining sufficient supplies of components and raw materials in times of significant growth in our business. For example, we have in the past experienced shortages in supplies of various components, such as mass flow controllers, valves and regulators, and certain prefabricated parts, such as sheet metal enclosures, used in the manufacture of our products. In addition, one of our competitors manufactures mass flow controllers that may be specified by one or more of our customers. If we are unable to obtain these particular mass flow controllers from our competitor or convince a customer to select alternative mass flow controllers, we may be unable to meet that customer’s requirements, which could result in a loss of market share.

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The highly volatile nature of the industries we serve could harm our operating results.

Our business and operating results depend in significant part upon capital expenditures by manufacturers in the semiconductor capital equipment, flat panel, medical, energy and research industries, which in turn depend upon the current and anticipated market demand for such products. Historically, the industries we serve (in particular the semiconductor industry) have been highly cyclical, with recurring periods of over-supply of products that have had a severe negative effect on the demand for capital equipment used to manufacture such products. We have experienced and anticipate that we will continue to experience significant fluctuations in customer orders for our products through such cycles. Slowdowns in the industries we serve have had, and future slowdowns may also have, a material adverse effect on our operating results. During periods of decreasing demand for our products, we must be able to appropriately align our cost structure with prevailing market conditions, effectively manage our supply chain and motivate and retain employees. During periods of increased demand, we must increase manufacturing capacity and inventory to meet customer demands, effectively manage our supply chain and attract, retain and motivate a sufficient number of employees. If we are not able to timely and appropriately adapt to the changes in our business environment, our results of operations will be harmed. Also, the cyclical and volatile nature of the industries we serve make future revenues, results of operations and net cash flows difficult to estimate.

We rely on a small number of customers for a significant portion of our sales, and any impairment of our relationships with these customers would adversely affect our business.

A relatively small number of OEM customers have historically accounted for a significant portion of our sales, and we expect this trend to continue. As a group, three customers accounted for 72% of the Company’s sales for 2010. Also, as a group, three customers accounted for 79% and 81% of the Company’s sales for fiscal years 2009 and 2008, respectively. Because of the small number of OEMs in the markets we serve, most of which are already our customers, it would be difficult to replace lost revenue resulting from the loss of, or the reduction, cancellation or delay in purchase orders by any one of these customers. Our customer contracts generally do not require them to place any orders with us. Consolidation among our customers, or a decision by any one or more of our customers to outsource all or most manufacturing and assembly work to a single equipment manufacturer, may further concentrate our business in a limited number of customers and expose us to increased risks relating to dependence on an even smaller number of customers.

In addition, by virtue of our customers’ size and the significant portion of revenue that we derive from them, they are able to exert significant influence and pricing pressure in the negotiation of our commercial agreements and the conduct of our business with them. We may also be asked to accommodate customer requests that extend beyond the express terms of our agreements in order to maintain our relationships with our customers. If we are unable to retain and expand our business with these customers on favorable terms, our business and operating results will be adversely affected.

We have had to qualify, and are required to maintain our status, as a supplier for each of our customers. This is a lengthy process that involves the inspection and approval by a customer of our engineering, documentation, manufacturing and quality control procedures before that customer will place volume orders. Our ability to lessen the adverse effect of any loss of, or reduction in sales to, an existing customer through the rapid addition of one or more new customers is minimal because of these qualification requirements. Consequently, our business, operating results and financial condition would be adversely affected by the loss of, or any reduction in orders by, any of our significant customers.

We are exposed to risks associated with the global economy.

Our sales were $443.1 million for 2010 compared to $159.8 million for 2009. We earned a net profit $20.1 million in 2010 compared to a net loss of $(20.0) million for the comparable period in the previous year. While it appears that the economy has entered a period of recovery, we may experience future economic slowdowns and fluctuations in customer orders. Also, as a result of the global economy, certain of our suppliers have been or

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may be forced out of business, which would require us to either procure products from high-cost suppliers, or if no additional suppliers exist, to reconfigure the design and manufacture of our products, and we may be unable to fulfill some customer orders.

We may not be able to fund our future capital requirements from our operations, and financing from other sources may not be available on favorable terms or at all.

We made capital expenditures of approximately $3.8 million during the twelve months ended December 31, 2010, related to the development of our manufacturing facilities in the United States, China and Singapore. The amount of our future capital requirements will depend on many factors, including:

Although we amended our loan agreement and extended the maturity of our credit facility through December 31, 2013, we may need to raise additional funds through public or private equity or debt financing if our current cash and cash flow from operations are insufficient to fund our future activities. We may not be able to obtain additional debt financing when and if necessary in a timely manner. In addition, banks have sometimes been unable or unwilling to satisfy their obligations under existing credit arrangements. Access to capital markets has, in the past,been unavailable to most companies such as ours and there can be no assurance that we would be able to complete an equity financing on terms satisfactory to us or at all. Equity financing, could be dilutive to holders of our common stock, and debt financings would likely involve covenants that restrict our business operations. If we cannot raise funds on acceptable terms, if and when needed, we may not be able to develop or enhance our products, take advantage of future opportunities, grow our business or respond to competitive pressures or unanticipated requirements, any of which could adversely affect our business, operating results and financial condition.

Our quarterly revenue and operating results fluctuate significantly from period to period, and this may cause volatility in our common stock price.

Our quarterly revenue and operating results have fluctuated significantly in the past, and we expect them to continue to fluctuate in the future for a variety of reasons which may include:

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As a result of the foregoing, we believe that quarter-to-quarter comparisons of our revenue and operating results may not be meaningful and that these comparisons may not be an accurate indicator of our future performance. Changes in the timing or terms of a small number of transactions could disproportionately affect our operating results in any particular quarter. Moreover, our operating results in one or more future quarters may fail to meet the expectations of securities analysts or investors. If this occurs, we would expect to experience an immediate and significant decline in the trading price of our common stock.

We have established, and as markets will allow, intend to expand our operations in Asia, which exposes us to risks associated with operating in a foreign country.

We intend to expand, as markets will allow, our operations in Asia, which includes China and Singapore. Our total assets in Asia as of December 31, 2010, were approximately $54 million.

We are exposed to political, economic, legal and other risks associated with operating in Asia, including:

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Our operations in Asia also subject us to U.S. laws governing the export of equipment. These laws are complex and require us to obtain clearances for the export to Asia of certain equipment. We may fail to comply with these laws and regulations, which could require us to cease use of certain equipment and expose us to fines or penalties.

Over the past several years the Chinese government has pursued economic reform policies, including the encouragement of private economic activity and greater economic decentralization. The Chinese government may not continue these policies or may significantly alter them to our detriment from time to time without notice. Changes in laws and regulations or their interpretation, the imposition of confiscatory taxation policies, new restrictions on currency conversion or limitations on sources of supply could materially and adversely affect our Chinese operations, which could result in the partial or total loss of our investment in that country and materially and adversely affect our future operating results.

We are subject to order and shipment uncertainties and any significant reductions, cancellations or delays in customer orders could cause our revenue to decline and our operating results to suffer.

Our revenue is difficult to forecast because we generally do not have a material backlog of unfilled orders and because of the short time frame within which we are often required to design, produce and deliver products to our customers. Most of our revenue in any quarter depends on customer orders for our products that we receive and fulfill in the same quarter. We do not have long-term purchase orders or contracts that contain minimum purchase commitments from our customers. Instead, we receive non-binding forecasts of the future volume of orders from our customers. Occasionally, we order and build component inventory in advance of the receipt of actual customer orders. Customers may cancel order forecasts, change production quantities from forecasted volumes or delay production for reasons beyond our control. Furthermore, reductions, cancellations or delays in customer order forecasts usually occur without penalty to, or compensation from, the customer. Reductions, cancellations or delays in forecasted orders could cause us to hold inventory longer than anticipated, which could reduce our gross profit, restrict our ability to fund our operations and cause us to incur unanticipated reductions or delays in revenue. If we do not obtain orders as we anticipate, we could have excess component inventory for a specific product that we would not be able to sell to another customer, likely resulting in inventory write-offs, which could have a material adverse effect on our business, financial condition and operating results. In addition, because many of our costs are fixed in the short term, we could experience deterioration in our gross profit when our production volumes decline.

The manufacturing of our products is highly complex, and if we are not able to manage our manufacturing and procurement process effectively, our business and operating results will suffer.

The manufacturing of our products is a highly complex process that involves the integration of multiple components and requires effective management of our supply chain while meeting our customers’ design-to-delivery cycle time requirements. Through the course of the manufacturing process, our customers may modify design and system configurations in response to changes in their own customers’ requirements. In order to rapidly respond to these modifications and deliver our products to our customers in a timely manner, we must effectively manage our manufacturing and procurement process. If we fail to manage this process effectively, we risk losing customers and damaging our reputation. In addition, if we acquire inventory in excess of demand or that does not meet customer specifications, we could incur excess or obsolete inventory charges. These risks are even greater during an economic downturn as we are currently experiencing and as we continue to expand our business beyond gas delivery systems into new subsystems. In this economic downturn, certain of our suppliers may be forced out of business, which would require us to either procure product from higher-cost suppliers or, if no additional suppliers exist, reconfigure the design and manufacture of our products. This could limit our growth and have a material adverse effect on our business, financial condition and operating results.

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OEMs may not continue to outsource other critical subsystems, which would adversely impact our operating results.

The success of our business depends on OEMs continuing to outsource the manufacturing of critical subsystems. Most of the largest OEMs have already outsourced production of a significant portion of their critical subsystems. If OEMs do not continue to outsource critical subsystems for their capital equipment, our revenue would be significantly reduced, which would have a material adverse effect on our business, financial condition and operating results. In addition, if we are unable to obtain additional business from OEMs, even if they continue to outsource their production of critical subsystems, our business, financial condition and operating results could be adversely affected.

If our new products are not accepted by OEMs or if we are unable to maintain historical margins on our new products, our operating results would be adversely impacted.

We design, develop and market critical subsystems to OEMs. Sales of new products are expected to make up an increasing part of our total revenue. The introduction of new products is inherently risky because it is difficult to foresee the adoption of new standards, coordinate our technical personnel and strategic relationships and win acceptance of new products by OEMs. We may not be able to recoup design and development expenditures if our new products are not accepted by OEMs. Newly introduced products typically carry lower gross margins for several or more quarters following their introduction. If any of our new subsystems is not successful in the market, or if we are unable to obtain gross margins on new products that are similar to the gross margins we have historically achieved, our business, operating results and financial condition could be adversely affected.

We may not be able to integrate efficiently the operations of past and future acquired businesses.

We have made, and may in the future consider making, acquisitions of, or significant investments in, businesses that offer complementary products, services, technologies or market access. For example, we acquired Sieger Engineering, Inc. in June 2006. If we are to realize the anticipated benefits of past and future acquisitions or investments, the operations of these companies must be integrated and combined efficiently with our own. The process of integrating supply and distribution channels, computer and accounting systems, and other aspects of operations, while managing a larger entity, have and will present a significant challenge to our management. In addition, it is not certain that we will be able to incorporate different financial and reporting controls, processes, systems and technologies into our existing business environment. The difficulties of integration may increase because of the necessity of combining personnel with varied business backgrounds and combining different corporate cultures and objectives. We may assume substantial debt and incur substantial costs associated with these activities and we may suffer other material adverse effects from these integration efforts which could materially reduce our earnings, even over the long-term. We may not succeed with the integration process and we may not fully realize the anticipated benefits of the business combinations. The dedication of management resources to such integration or divestitures may detract attention from the day-to-day business, and we may need to hire additional management personnel to manage our acquisitions successfully.

In addition, we frequently evaluate acquisitions of, or significant investments in, complementary companies, assets, businesses and technologies. Even if an acquisition or other investment is not completed, we may incur significant management time and effort and financial cost in evaluating such acquisition or investment, which has in the past had, and could in the future have, an adverse effect on our results of operations. Furthermore, due to the limited liquidity in the credit market, the financing of any such acquisition may be difficult to obtain, and the terms of such financing may be less favorable.

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Our business is largely dependent on the know-how of our employees, and we generally do not have a protected intellectual property position.

Our business is largely dependent upon our design, engineering, manufacturing and testing know-how. We rely on a combination of trade secrets and contractual confidentiality provisions and, to a much lesser extent, patents, copyrights and trademarks to protect our proprietary rights. Accordingly, our intellectual property position is more vulnerable than it would be if it were protected by patents. If we fail to protect our proprietary rights successfully, our competitive position could suffer, which could harm our operating results. We may be required to spend significant resources to monitor and protect our proprietary rights, and, in the event we do not detect infringement of our proprietary rights, we may lose our competitive position in the market if any such infringement occurs. In addition, competitors may design around our technology or develop competing technologies and know-how.

If we do not keep pace with developments in the industries we serve and with technological innovation generally, our products may not be competitive.

Rapid technological innovation in the markets we serve requires us to anticipate and respond quickly to evolving customer requirements and could render our current product offerings and technology obsolete. Technological innovations are inherently complex. We must devote resources to technology development in order to keep pace with such rapidly evolving technologies. We believe that our future success will depend upon our ability to design, engineer and manufacture products that meet the changing needs of our customers. This requires that we successfully anticipate and respond to technological changes in design, engineering and manufacturing processes in a cost-effective and timely manner. If we are unable to integrate new technical specifications into competitive product designs, develop the technical capabilities necessary to manufacture new products or make necessary modifications or enhancements to existing products, our business prospects could be harmed.

The timely development of new or enhanced products is a complex and uncertain process which requires that we:

The industries in which we participate are highly competitive and rapidly evolving, and if we are unable to compete effectively, our operating results would be harmed.

Although we have not faced competition in the past from the largest subsystem and component manufacturers in the industries we serve, these suppliers could compete with us in the future. Increased competition has in the past resulted, and could in the future result, in price reductions, reduced gross margins or loss of market share, any of which would harm our operating results. We are subject to pricing pressure as we attempt to increase market share with our existing customers. Competitors may introduce new products for the markets currently served by our products. These products may have better performance, lower prices and achieve

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broader market acceptance than our products. Further, OEMs typically own the design rights to their products and may provide these designs to other subsystem manufacturers. If our competitors obtain proprietary rights to these designs such that we are unable to obtain the designs necessary to manufacture products for our OEM customers, our business, financial condition and operating results could be adversely affected.

Our competitors may have greater financial, technical, manufacturing and marketing resources than we do. As a result, they may be able to respond more quickly to new or emerging technologies and changes in customer requirements, devote greater resources to the development, promotion, sale and support of their products, and reduce prices to increase market share. Moreover, there may be merger and acquisition activity among our competitors and potential competitors that may provide our competitors and potential competitors an advantage over us by enabling them to expand their product offerings and service capabilities to meet a broader range of customer needs. Further, if one of our customers develops or acquires the internal capability to develop and produce critical subsystems that we produce, the loss of that customer could have a material adverse effect on our business, financial condition and operating results. The introduction of new technologies and new market entrants may also increase competitive pressures.

We must achieve design wins to retain our existing customers and to obtain new customers.

New capital equipment typically has a lifespan of several years, and OEMs frequently specify which systems, subsystems, components and instruments are to be used in their equipment. Once a specific system, subsystem, component or instrument is incorporated into a piece of capital equipment, it will likely continue to be incorporated into that piece of equipment for at least several months before the OEM switches to the product of another supplier.

Accordingly, it is important that our products are designed into the new capital equipment of OEMs, which we refer to as a design win, in order to retain our competitive position with existing customers and to obtain new customers.

We incur technology development and sales expenses with no assurance that our products will ultimately be designed into an OEM’s capital equipment. Further, developing new customer relationships, as well as increasing our market share at existing customers, requires a substantial investment of our sales, engineering and management resources without any assurance from prospective customers that they will place significant orders. We believe that OEMs often select their suppliers and place orders based on long-term relationships. Accordingly, we may have difficulty achieving design wins from OEMs that are not currently our customers. Our operating results and potential growth could be adversely affected if we fail to achieve design wins with leading OEMs.

Defects in our products could damage our reputation, decrease market acceptance of our products, cause the unintended release of hazardous materials and result in potentially costly litigation.

A number of factors, including design flaws, material and component failures, contamination in the manufacturing environment, impurities in the materials used and unknown sensitivities to process conditions, such as temperature and humidity, as well as equipment failures, may cause our products to contain undetected errors or defects. Problems with our products may:

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If any of our products contain defects or have reliability, quality or compatibility problems, our reputation might be damaged and customers might be reluctant to buy our products. We may also face a higher rate of product defects as we increase our production levels. Product defects could result in the loss of existing customers or impair our ability to attract new customers. In addition, we may not find defects or failures in our products until after they are installed in a manufacturer’s fabrication facility. We may have to invest significant capital and other resources to correct these problems. Our current or potential customers also might seek to recover from us any losses resulting from defects or failures in our products. Hazardous materials flow through and are controlled by our products and an unintended release of these materials could result in serious injury or death. Liability claims could require us to spend significant time and money in litigation or pay significant damages.

We have outstanding indebtedness; the restrictive covenants under our debt agreements may limit our ability to expand or pursue our business strategy; if we are forced to prepay some or all of this indebtedness our financial position would be severely and adversely affected.

We have outstanding indebtedness. At the end of 2010, our long-term debt was $24.6 million and our short-term debt was $4.1 million, for an aggregate total of $28.7 million. Our loan agreement, as amended on October 21, 2010, contains certain reporting and financial covenants that must be met on a quarterly basis in order for the Company to remain in compliance. The covenants contained in our line of credit with the bank also restrict our ability to take certain actions, including our ability to:

We cannot assure you that we will meet these financial covenants in subsequent periods. If we are unable to meet any covenants, we cannot assure you that the bank will grant waivers or amend the covenants, or that the bank will not terminate the agreement, preclude further borrowings or require us to immediately repay any outstanding borrowings. As long as our indebtedness remains outstanding, the restrictive covenants could impair our ability to expand or pursue our business strategies or obtain additional funding. Forced prepayment of some or all of our indebtedness would reduce our available cash balances and have an adverse impact on our operating and financial performance.

The technology labor market is very competitive, and our business will suffer if we are unable to hire and retain key personnel.

Our future success depends in part on the continued service of our key executive officers, as well as our research, engineering, sales, manufacturing and administrative personnel, most of whom are not subject to employment or non-competition agreements. In addition, competition for qualified personnel in the technology industry is intense, and we operate in geographic locations in which labor markets are particularly competitive.

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Our business is particularly dependent on expertise which only a very limited number of engineers possess. During the fourth quarter of 2010, the Company’s Chief Operating Officer resigned. The loss of any of our key employees and officers, including our Chief Executive Officer or any of our Senior Vice Presidents, or the failure to attract and retain new qualified employees, could adversely affect our business, operating results and financial condition.

Fluctuations in currency exchange rates may adversely affect our financial condition and results of operations.

Our international sales are denominated primarily, though not entirely, in U.S. dollars. Many of the costs and expenses associated with our Chinese subsidiaries and Singapore subsidiary are paid in Chinese Renminbi and Singapore dollars, respectively, and we expect our exposure to Chinese Renminbi and Singapore dollars to increase as we ramp up production in those facilities. In addition, purchases of some of our components are denominated in Japanese Yen and Euro. Changes in exchange rates among other currencies in which our revenue or costs are denominated and the U.S. dollar may affect our revenue, cost of sales and operating margins. While fluctuations in the value of our revenue, cost of sales and operating margins as measured in U.S. dollars have not materially affected our results of operations historically, we do not currently hedge our exchange exposure, and exchange rate fluctuations could have an adverse effect on our financial condition and results of operations in the future.

If environmental contamination were to occur in one of our manufacturing facilities, we could be subject to substantial liabilities.

We use substances regulated under various foreign, domestic, federal, state and local environmental laws in our manufacturing facilities. Our failure or inability to comply with existing or future environmental laws could result in significant remediation liabilities, the imposition of fines or the suspension or termination of the production of our products. In addition, we may not be aware of all environmental laws or regulations that could subject us to liability.

If our facilities were to experience catastrophic loss due to natural disasters, our operations would be seriously harmed.

Our facilities could be subject to a catastrophic loss caused by natural disasters, including fires and earthquakes. We have facilities in areas with above average seismic activity, such as our manufacturing facility in South San Francisco, California and our new manufacturing and headquarters facilities in Hayward, California. If any of our facilities were to experience a catastrophic loss, it could disrupt our operations, delay production and shipments, reduce revenue and result in large expenses to repair or replace the facility. In addition, we have in the past experienced, and may in the future experience, extended power outages at our facilities. We do not carry insurance policies that cover potential losses caused by earthquakes or other natural disasters or power loss.

Third parties have claimed and may in the future claim we are infringing their intellectual property, which could subject us to litigation or licensing expenses, and we may be prevented from selling our products if any such claims prove successful.

We have in the past and may in the future receive claims that our products, processes or technologies infringe the patents or other proprietary rights of third parties. In addition, we may be unaware of intellectual property rights of others that may be applicable to our products. Any litigation regarding our patents or other intellectual property could be costly and time-consuming and divert our management and key personnel from our business operations, any of which could have a material adverse effect on our business and results of operations. The complexity of the technology involved in our products and the uncertainty of intellectual property litigation increase these risks. Claims of intellectual property infringement may also require us to enter into costly license

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agreements. However, we may not be able to obtain licenses on terms acceptable to us, or at all. We also may be subject to significant damages or injunctions against the development, manufacture and sale of certain of our products if any such claims prove successful.

Changes in tax rates or tax assets and liabilities could affect results of operations.

As a global company, we are subject to taxation in the United States and various other countries. Significant judgment is required to determine and estimate worldwide tax liabilities. Our future annual and quarterly tax rates could be affected by numerous factors, including changes in the: (1) applicable tax laws; (2) amount and composition of pre-tax income in countries with differing tax rates; or (3) valuation of our deferred tax assets and liabilities.

In addition, we are subject to regular examination by the Internal Revenue Service and other tax authorities, and from time to time we initiate amendments to previously filed tax returns. We regularly assess the likelihood of favorable or unfavorable outcomes resulting from these examinations and amendments to determine the adequacy of its provision for income taxes, which requires estimates and judgments. Although we believe our tax estimates are reasonable, there can be no assurance that the tax authorities will agree with such estimates. We may have to engage in litigation to achieve the results reflected in the estimates, which may be time-consuming and expensive. There can be no assurance that we will be successful or that any final determination will not be materially different from the treatment reflected our historical income tax provisions and accruals, which could materially and adversely affect our financial condition and results of operations.

The market for our stock is subject to significant fluctuation.

The size of our public market capitalization is relatively small, and the volume of our shares that are traded is low. The market price of our common stock could be subject to significant fluctuations. Among the factors that could affect our stock price are:

The stock markets in general, and the markets for technology stocks in particular, have experienced extreme volatility that has often been unrelated to the operating performance of particular companies. These broad market fluctuations may adversely affect the trading price of our common stock.

None.

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Our headquarters is located in a 104,000 square foot facility in Hayward, California. This is our principal administrative, sales and support, engineering and technology development and manufacturing facility. This lease will expire in February 2015. We also have manufacturing and engineering facilities in South San Francisco, California. In South San Francisco we lease approximately 90,000 square feet under 4 leases with varying expiration dates and extension periods. Approximately 12,300 square feet in South San Francisco is a neat room facility and 1,300 square feet is a clean room manufacturing facility. We also have manufacturing facilities in Austin, Texas, and Shanghai, China. In Austin, we lease an aggregate of approximately 56,400 square feet of commercial space under leases that expire in August 2016 with extension provisions. Approximately 14,400 square feet in Austin is a clean room manufacturing facility. In Shanghai, we lease approximately 132,000 square feet of commercial space under two leases which expire in 2013 and 2016. Approximately 11,000 square feet of this space is a clean room facility. In Singapore, we lease approximately 35,000 square feet under a lease that expires in October 2014.

The table below lists our properties as of February 28, 2011:

From time to time, we are subject to various legal proceedings and claims, either asserted or unasserted, that arise in the ordinary course of business. Although the outcome of the various legal proceedings and claims cannot be predicted with certainty, we have not had a history of outcomes to date that have been material to the statement of operations and do not believe that any of these proceedings or other claims will have a material adverse effect on our consolidated financial condition or results of operations.

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PART II

Our common stock has been traded on the NASDAQ Global Market under the symbol “UCTT” since March 25, 2004. The following table sets forth for the periods indicated the high and low closing sales prices per share of our common stock as reported by the NASDAQ Global Market:

To date, we have not declared or paid cash dividends to our stockholders and we do not intend to do so for the foreseeable future in order to retain earnings for use in our business. Our credit facility limits our ability to pay dividends. As of February 28, 2011, we had approximately 7 stockholders of record.

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You should read the following tables in conjunction with other information contained under “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” our consolidated financial statements and related notes and other financial information contained elsewhere in this Annual Report.

Statements of Operations Data (in thousands):

Consolidated Balance Sheet Data (in thousands):

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This section and other parts of this Annual Report on Form 10-K contain forward-looking statements that involve risks and uncertainties. Forward-looking statements can also be identified by words such as “anticipates,” “expects,” “believes,” “plans,” “predicts,” and similar terms. Forward-looking statements are not guarantees of future performance and the Company’s actual results may differ significantly from the result discussed in the forward-looking statements. Factors that might cause such differences include, but are not limited to, those discussed in “Item 1A — Risk Factors” above. The following discussion should be read in conjunction with the consolidated financial statement and notes thereto included in Item 8 of this report. The Company assumes no obligation to revise or update any forward-looking statements for any reason, except as required by law.

Overview

We are a leading developer and supplier of critical subsystems, primarily for the semiconductor capital equipment industry. We also leverage the specialized skill sets required to support semiconductor capital equipment to serve the technologically similar markets in the flat panel, medical, energy and research industries, collectively referred to as “Other Addressed Industries”. We develop, design, prototype, engineer, manufacture and test subsystems which are highly specialized and tailored to specific steps in the semiconductor manufacturing process as well as the manufacturing process in Other Addressed Industries. Our revenue is derived primarily from the sale of gas delivery systems and other critical subsystems including chemical mechanical planarization (“CMP”) subsystems, chemical delivery modules, top-plate assemblies, frame assemblies, process modules and other high level assemblies.

The global economic slowdown in 2008 and 2009 impacted the industries in which we operate. Reduced growth and uncertainty regarding future growth in economies throughout the world have caused companies to reduce capital investment and may in the future cause further reduction of such investments. Economic uncertainty has caused and may in the future cause our customers to push out, cancel, or refrain from placing orders with us, which in turn has reduced and may in the future reduce our sales and negatively impact our cash flow. While it appears that the economy has entered a period of recovery, we may experience future economic slowdowns and fluctuations in customer orders.

Our sales were $443.1 million in fiscal year 2010 compared to $159.8 million for fiscal year 2009. Our three largest customers in 2010 were Applied Materials, Inc., Lam Research Corporation and Novellus Systems, Inc., two of which accounted for 10% or more of sales in 2010. Our three largest customers in 2009 and 2008 were Applied Materials, Inc., Intuitive Surgical, Inc., and Lam Research Corporation, each of which accounted for more than 10% of our total sales in 2009 and 2008. As a group, these three customers accounted for 72%, 79% and 81% of the Company’s sales for 2010, 2009 and 2008, respectively.

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Results of Operations

The following table sets forth income statement data for the periods indicated as a percentage of revenue:

Year Ended December 31, 2010 Compared With Year Ended January 1, 2010

Sales

Sales for the year ended December 31, 2010 increased $283.4 million, or 177.4%, to $443.1 million from $159.8 million for the year ended January 1, 2010. The increase in sales for 2010 reflects a recovery of semiconductor equipment demand since the overall slowdown in the industry. Substantially all of the revenue increase is attributable to volume increases with existing customers. We expect revenues to be slightly higher in the first quarter of 2011 as compared to the previous quarter.

Gross Profit

Cost of goods sold consists primarily of purchased materials, inventory write-downs, labor and overhead, including depreciation, associated with the design and manufacture of products sold. Gross profit for the year ended December 31, 2010 increased to $59.1 million, or 13.3% of sales, from $8.0 million, or 5.0% of sales, for the year ended January 1, 2010. Our gross margin for 2010 increased from 2009 primarily as a result of increased unit volume manufactured due to increased sales for fiscal 2010 and greater factory utilization. Our gross margin for 2009 reflected low unit volume manufactured due to decreased sales during fiscal 2009, lower factory utilization and employee severance charges resulting from a series of reductions in force.

Research and Development Expense

Research and development expense consists primarily of activities related to new component testing and evaluation, test equipment, design and implementation, new product design and testing and other product development activities. Research and development expense increased to $5.5 million, or 1.2% of sales, for the year ended December 31, 2010 compared to $3.2 million, or 2.0% of sales for the year ended January 1, 2010. The increase in expense is primarily a result of higher payroll and related benefit costs as a result of headcount increases.

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Sales and Marketing Expense

Sales and marketing expense consists primarily of salaries and commissions paid to our sales and service employees, salaries paid to our engineers who work with our sales and service employees to help determine the components and configuration requirements for new products and other costs related to the sales of our products. Sales and marketing expense was $6.9 million and $4.7 million for the years ended December 31, 2010 and January 1, 2010, respectively. The increase in spending was due primarily to increased headcount related expenses and higher sales commissions. As a percentage of sales, sales and marketing expense decreased to 1.6% for the year ended December 31, 2010 compared to 2.9% for the year ended January 1, 2010 due to the substantially higher revenue base in 2010 compared to 2009.

General and Administrative Expense

General and administrative expense consists primarily of salaries and overhead of our administrative staff and professional fees. General and administrative expense increased to $21.3 million, or 4.8% of sales, for the year ended December 31, 2010, from $16.2 million, or 10.1% of sales, for the year ended January 1, 2010. The increase in expense is due to primarily to increased payroll and related benefit costs as a result of increases in headcount and terminations costs for executives, partially offset by reductions in fees for outside professional services.

Interest and Other Income (Expense), net

Interest and other income (expense), net for fiscal year 2010 was $(0.7) million compared to $(0.8) million for fiscal 2009. Components of interest and other income (expense), net related primarily to interest expense for both fiscal 2010 and 2009. Interest expense for 2010 was approximately $(0.9) million compared to $(0.8) for 2009 and was slightly higher due to the $8.0 million term loan entered into in the fourth quarter of 2010. Offsetting 2010 interest expense was miscellaneous income including gains on sales of assets.

Income Tax Provision

Our effective tax rate for the year ended December 31, 2010 was 19.0% compared to 18.7% for the year ended January 1, 2010. Our effective tax rate is substantially impacted by several items including state taxes and the effect of foreign operations, as well as a change in our geographic mix of US and China earnings. Our effective tax rate was lower than the statutory rate for the year ended December 31, 2010 primarily due to the geographic distribution of our world-wide earnings, the favorable impacts of a reversal of $0.9 million of previously established tax liability related to the Company’s uncertain tax positions and a partial release of $1.2 million of valuation allowance. Our effective tax rate was lower than the statutory rate applied to our net loss for the year ended January 1, 2010 primarily due to the establishment of a valuation allowance of $7.0 million on our net deferred tax assets.

Year Ended January 1, 2010 Compared With Year Ended January 2, 2009

Sales

Sales for the year ended January 1, 2010 decreased $107.1 million, or 40.1%, to $159.8 million from $266.9 million for the year ended January 2, 2009. The change in sales reflects a decrease in semi-conductor equipment and non-semiconductor demand as a result of the overall slowdown in the global economy.

Gross Profit

Gross profit for the year ended January 1, 2010 decreased to $8.0 million, or 5.0% of sales, from $25.5 million, or 9.5% of sales, for the year ended January 2, 2009. The decrease in gross profit was due primarily to declining unit volume manufactured due to declining sales during fiscal year 2009 and lower factory utilization in 2009 compared to 2008.

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Research and Development Expense

Research and development expense increased slightly to $3.2 million, or 2.0% of sales, for the year ended January 1, 2010 compared to $2.9 million, or 1.1% of sales for the year ended January 2, 2009. The increase in expense was primarily due to the reassignment of existing resources to new product development activities.

Sales and Marketing Expense

Sales and marketing expense was $4.7 million and $5.7 million for the years ended January 1, 2010 and January 2, 2009, respectively. The decrease in spending was due primarily to reduced headcount related expenses as a result of reduced headcount, salary reductions and lower sales commissions. As a percentage of sales, sales and marketing expense increased to 2.9% for the year ended January 1, 2010 compared to 2.2% for the year ended January 2, 2009 due to the lower revenue base in 2009 compared as to 2008.

General and Administrative Expense

General and administrative expense decreased to $16.2 million, or 10.1% of sales, for the year ended January 1, 2010, from $24.2 million, or 9.1% of sales, for the year ended January 2, 2009. The decrease in expense was due to primarily to reduced payroll and related benefit costs due to decreases in headcount and salary reductions.

Impairment of goodwill and long-lived assets

During 2008, as a result of our annual impairment test of goodwill, we determined that the carrying amount of certain reporting units exceeded their fair value resulting in impairment charges of $34.1 million to goodwill.

During the fourth quarter of fiscal 2008, we determined that an adverse change in our business climate required us to test the recoverability of our long-lived assets. As a result of these tests we determined that the carrying amount of certain reporting units had exceeded their fair value resulting in impairment charges of $10.7 million for other intangible assets and $10.4 million for property, plant and equipment. (See Note 3 to Consolidated Financial Statements for further discussion).

Interest and Other Income (Expense), net

Interest and other income (expense), net for fiscal year 2009 was $(0.8) million compared to $(0.9) million for fiscal 2008. Interest expense for fiscal 2009 was $0.8 million compared to $1.1 million in 2008. The decrease in 2009 was due primarily to a decrease in interest rates on debt.

Income Tax Provision

Our effective tax rate for the year ended January 1, 2010 was 18.7% compared to an income tax benefit of 17.3% for the year ended January 2, 2009. Our effective tax rate was substantially impacted by several items including Section 199 deduction for domestic production activities, state taxes and the effect of foreign operations, as well as a change in our geographic mix of US and China earnings.

Critical Accounting Policies, Significant Judgments and Estimates

Our consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States, which requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenue and expenses and related disclosure at the date of our consolidated financial statements. On an on-going basis, we evaluate our estimates and judgments, including those related to sales, inventories, intangible assets, stock compensation and income taxes. We base our estimates and judgments on historical experience and on various other factors that we believe to be reasonable under the circumstances, the results of which form the basis of our judgments about the carrying values of assets and liabilities that are not

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readily apparent from other sources. Actual results may differ from these estimates. We consider certain accounting policies related to revenue recognition, inventory valuation, accounting for income taxes, business combinations, valuation of intangible assets and goodwill, and equity incentives to employees to be critical policies due to the estimates and judgments involved in each.

Revenue Recognition

Our revenue is highly concentrated in four OEM customers in the semiconductor capital equipment, energy, flat panel and medical industries. Our standard arrangement for our customers includes a signed purchase order or contract, no right of return of delivered products and no customer acceptance provisions. Revenue from sales of products is recognized when:

Revenue is generally recognized upon shipment of the product. In arrangements which specify title transfer upon delivery, revenue is not recognized until the product is delivered. In addition, if we have not fulfilled the terms of the agreement at the time of shipment, revenue recognition is deferred until completion.

We assess collectability based on the creditworthiness of the customer and past transaction history. We perform on-going credit evaluations of, and do not require collateral from, our customers. We have not experienced significant collection losses in the past. A significant change in the liquidity or financial position of any one customer could make it more difficult for us to assess collectability.

Inventory Valuation

We write down the carrying value of our inventory to net realizable value for estimated obsolescence or unmarketable inventory in an amount equal to the difference between the cost of inventory and its estimated realizable value based upon assumptions about future demand and market conditions. If actual demand and market conditions are less favorable than those projected by management, additional inventory write-downs could be required. We assess the valuation of all inventories, including raw materials, work-in-process, finished goods and spare parts on a periodic basis. Obsolete inventory or inventory in excess of our estimated usage is written down to its estimated market value less costs to sell, if less than its cost. The inventory write-downs are recorded as an inventory valuation allowance established on the basis of obsolete inventory or specific identified inventory in excess of established usage. Inherent in our estimates of market value in determining inventory valuation are estimates related to economic trends, future demand for our products and technological obsolescence of our products. If actual market conditions are less favorable than our projections, additional inventory write-downs may be required. If the inventory value is written down to its net realizable value, and subsequently there is an increased demand for the inventory at a higher value, the increased value of the inventory is not realized until the inventory is sold either as a component of a subsystem or as separate inventory. For the years ended December 31, 2010 and January 1, 2010 we wrote down $1.4 million and $0.5 million, respectively, in inventory determined to be obsolete.

Accounting for Income Taxes

The determination of our tax provision is subject to judgments and estimates. The carrying value of our net deferred tax assets, which are made up primarily of tax deductions, assumes we will be able to generate sufficient future income to fully realize these deductions. In determining whether the realization of these deferred tax assets may be impaired, we make judgments with respect to whether we are likely to generate sufficient future taxable

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income to realize these assets. The provision for the year ended December 31, 2010, includes a partial release of our valuation allowance of $1,239,000. The provision for the twelve months ended January 1, 2010, includes the establishment of a valuation allowance of $7.0 million in the second quarter of 2009. As of December 31, 2010, we maintained a full valuation allowance on our U.S. deferred tax assets and a partial valuation allowance on our non-U.S. deferred tax assets. In order to reverse a valuation allowance, SEC guidance requires us to review our cumulative twelve-quarter income/loss as well as our ability to generate sufficient future taxable income to realize our net deferred tax assets. We conducted such a review of each of our subsidiaries as of December 31, 2010, and we concluded that it was appropriate to release all of the valuation allowance, or $480,000, related to one of our China subsidiaries. We also released an additional $759,000 of valuation allowance due to the change in deferred tax assets for which we maintained a full valuation allowance.

In addition, the calculation of tax liabilities involves significant judgment in estimating the impact of uncertainties in the application of complex tax laws. Resolution of these uncertainties in a manner inconsistent with the Company’s expectations could have a material impact on its results of operations and financial position. The provision for the year ended December 31, 2010, includes a reversal of $883,000 of previously established tax liability related to the Company’s uncertain tax positions.

We believe we have adequately reserved for our uncertain tax positions, however, no assurance can be given that the final tax outcome of these matters will not be different. We adjust these reserves in light of changing facts and circumstances, such as the closing of a tax audit or the refinement of an estimate. To the extent that the final tax outcome of these matters is different than the amounts recorded, such differences will impact the provision for income taxes in the period in which such determination is made. The provision for income taxes includes the impact of reserve provisions and changes to reserves that are considered appropriate, as well as the related net interest.

The Company’s 2005 and 2006 state income tax returns are currently under examination by the California Franchise Tax Board (“CFTB”) and the Company’s state income tax returns are open to audit under the statute of limitations for the fiscal years 2005 through 2009. The Company is also subject to examination in various other jurisdictions for various periods. During the second quarter of 2010, the IRS completed its audit of the Company’s tax returns for the years 2006 through 2009. An assessment of approximately $110,000, excluding interest, was agreed to and paid by the Company. The Company is still open under the statute of limitations for fiscal years 2004 through 2005.

Business Combinations

In accordance with business combination accounting, we allocate the purchase price of acquired companies to the tangible and intangible assets acquired and liabilities assumed based on their estimated fair values. We may engage third-party appraisal firms to assist management in determining the fair values of acquired intangible assets such as trade name and customer relationships. Such valuations require management to make significant estimates and assumptions. Management makes estimates of fair value based upon assumptions believed to be reasonable. These estimates are based on historical experience and information obtained from the management of the acquired companies and are inherently uncertain.

Valuation of Goodwill and Long-lived Assets

We evaluate our intangible assets in accordance with the Financial Accounting Standards Board (“FASB”) guidance regarding accounting for the impairment of goodwill, at least annually, for indications of impairment whenever events or changes in circumstances indicate that the carrying value may not be recoverable, such as an adverse change in our business climate or a decline in the overall industry, that would more likely than not reduce the fair value of a reporting unit below its carrying amount. The Company’s only intangible asset is Tradename. Factors we consider important that could trigger an impairment review include significant under-performance relative to historical or projected future operating results, significant changes in the manner of our use of the acquired assets or the strategy for our overall business, or significant negative industry or economic

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trends. The provisions of the FASB’s guidance regarding accounting for the impairment of goodwill require an impairment test annually or more frequently if impairment indicators arise. In testing for a potential impairment, the provisions of the FASB’s guidance regarding accounting for the impairment of goodwill require the application of a fair value based test at the reporting unit level. We operate in one reportable segment and have one reporting unit. Therefore, all goodwill is considered enterprise goodwill and the first step of the impairment test prescribed by the FASB’s guidance regarding accounting for the impairment of goodwill requires a comparison of our fair value to our book value. If the estimated fair value is less than the book value, the FASB’s guidance regarding accounting for the impairment of goodwill requires an estimate of the fair value of all identifiable assets and liabilities of the business, in a manner similar to a purchase price allocation for an acquired business. This estimate requires valuations of certain internally generated and unrecognized intangible assets such as in-process research and development and developed technology. Potential goodwill impairment is measured based upon this two-step process. As part of the Company’s annual review for impairment of goodwill during the fourth quarter of 2008, the Company determined that a significant adverse change to its business environment had occurred, which required that it evaluate the carrying value of its goodwill for impairment. The Company concluded that, under the income or the market approach, the fair value of the reporting unit was below its carrying value and, as a result, the Company recorded impairment charges of $34.1 million for goodwill.

In accordance with the FASB’s guidance regarding accounting for the impairment or disposal of long-lived assets, the Company tests other long-lived assets, including property, equipment and leasehold improvements and other intangible assets subject to amortization, for recoverability whenever events or changes in circumstances indicate that the carrying value of those assets may not be recoverable. The Company assesses the recoverability of an asset group by determining if the carrying value of the asset group exceeds the sum of the projected undiscounted cash flows expected to result from the use and eventual disposition of the assets over the remaining economic life of the primary asset in the asset group. If the recoverability test indicates that the carrying value of the asset group is not recoverable, the Company will estimate the fair value of the asset group using the income approach, which is the present value technique used to measure the fair value of future cash flow produced by each asset group, and compare it to its carrying value. The excess of the carrying value over the fair value is allocated pro rata to derive the adjusted carrying value. The adjusted carrying value of each asset in the asset group is not reduced below its fair value.

During the fourth quarter of fiscal 2008, we determined that an adverse change in our business climate required us to test the recoverability of our long-lived assets. As a result of these tests we determined that the carrying amount of certain reporting units had exceeded their fair value resulting in impairment charges of $10.7 million for other intangible assets and $10.4 million for property, plant and equipment. (See Note 3 to Consolidated Financial Statements for further discussion).

The process of evaluating the potential impairment of goodwill or long-lived assets is subjective and requires significant judgment on matters such as, but not limited to, the reporting unit at which goodwill should be measured for impairment and the asset group to be tested for recoverability. The Company is also required to make estimates that may significantly impact the outcome of the analyses. Such estimates include, but are not limited to, future operating performance and cash flows, cost of capital, terminal values, control premiums and remaining economic lives of assets.

Equity Incentives to Employees

We have accounted for stock-based compensation under the FASB’s guidance regarding stock-based compensation and the SEC’s guidance requiring the use of option pricing models that were not developed for use in valuing employee stock options. The Black-Scholes option-pricing model that we use was developed for use in estimating the fair value of short-lived exchange traded options that have no vesting restrictions and are fully transferable. In addition, option-pricing models require the input of highly subjective assumptions, including the option’s expected life and the price volatility of underlying stock. Our expected stock price volatility assumption was determined using the historical volatility of our common stock. We determined that historical volatility

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reflects market conditions and is a good indicator of future volatility. Our expected term represents the period that our stock-based awards are expected to be outstanding and was determined based on our historical experience with similar awards, giving consideration to the contractual terms of the stock-based awards and vesting schedules. See Note 7 of Notes to Consolidated Financial Statements for a detailed description.

Unaudited Quarterly Financial Results

The following table sets forth statement of operations data, in thousands, for the periods indicated. The information for each of these periods is unaudited and has been prepared on the same basis as our audited consolidated financial statements included herein and includes all adjustments, consisting only of normal recurring adjustments that we consider necessary for a fair presentation of our unaudited operations data for the periods presented. Historical results are not necessarily indicative of the results to be expected in the future (in thousands):

Our operating results for fiscal 2009 reflect a downturn in the semiconductor capital equipment industry beginning in the second quarter of 2008. The decrease in net income between the third and fourth quarters of 2010 was primarily the result of lower gross margins on higher revenues as well as one-time employee termination-related charges in the fourth quarter of 2010.

Liquidity and Capital Resources

We have required capital principally to fund our working capital needs, satisfy our debt obligations, maintain our equipment and purchase new capital equipment. As of December 31, 2010, we had cash of $34.7 million compared to $26.7 million as of January 1, 2010.

For the year ended December 31, 2010, we used cash from operating activities of $4.9 million compared to $1.1 million of cash generated from operating activities for the year ended January 1, 2010. Operating cash flow used in 2010 was substantially impacted by an increase in accounts receivable of $19.8 million and an increase in inventory of $12.3 million and $1.2 million for an excess tax benefit from stock-based compensation. Operating cash flows provided were from our $20.1 million of net income and, additionally, by net non-cash activity, including depreciation and amortization of $2.3 million, stock-based compensation of $3.2 million, offset by a decrease in net deferred income taxes of $0.3 million. Other operating cash flows provided were an increase of $1.3 million in accrued compensation and related benefits and an increase of $1.2 million in income taxes payable. The increases in accounts receivable and inventory are a result of increases in customer demand and related revenue during 2010. Our cash flows from operations in any given period are largely driven by the timing of sales, the collection of accounts receivable and the payments of accounts payable.

Net cash used in investing activities for the year ended December 31, 2010, increased to $3.8 million from $0.7 million in the year ended January 1, 2010 as a result of an increase in capital expenditures compared to prior year. These investments in equipment and leasehold improvements include our continued investment in our Asian subsidiaries as well as our domestic operating units, particularly Austin, Texas.

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Net cash provided from financing activities for the year ended December 31, 2010, was $16.6 million compared to cash used in financing activities of $3.3 million from $6.0 million in the years ended January 1, 2010 and January 2, 2009, respectively. In 2010, our cash provided by financing activities was due to increased borrowings, primarily to support our increased revenue growth and related increase in inventory requirements, under the Company’s revolving line of credit by $8.0 million, a new $8.0 million term loan, proceeds from option exercises and the employee stock purchase plan of $1.8 million and excess tax benefit from stock-based compensation of $1.2 million, offset by payments on short-term debt and capital lease obligations of $2.5 million.

We anticipate that our existing cash balance and operating cash flow, together with available borrowings under our credit facility as amended on October 21, 2010 (see “Borrowing Arrangements” below), will be sufficient to meet our working capital requirements and technology development projects for at least the next twelve months. The adequacy of these resources to meet our liquidity needs beyond that period will depend on our growth, the state of the worldwide economy, the cyclical expansion or contraction of the semiconductor capital equipment industry and the other industries we serve and capital expenditures required to meet possible increased demand for our products.

The undistributed earnings of our foreign subsidiaries at December 31, 2010 are considered to be indefinitely reinvested and no distribution of those earnings in the form of dividends or otherwise, as well as related provisions for U.S. income taxes, have been provided thereon. The Company anticipates it has adequate liquidity and capital resources at the subsidiary level and would not need to repatriate earnings.

Borrowing Arrangements

The Company has borrowing arrangements with its banking facility which includes a $25.0 million revolving credit facility and two term loans. The aggregate amount of the revolving credit facility, which matures on December 31, 2013, is subject to a borrowing base equal to 80% of eligible accounts receivable and 45% of eligible inventory (total eligible inventory not to exceed $3.0 million) and is secured by substantially all of the Company’s assets. The revolving credit facility bears interest per annum at a variable rate equal to the greater of the bank’s stated prime rate, or 4%, plus a margin of 25 basis points. The interest rate during 2010 and on December 31, 2010 on outstanding loans under the revolving credit facility was 4.25%. The revolving credit facility contains certain reporting and financial covenants that must be met on a quarterly basis in order for the Company to remain in compliance. The Company was in compliance with all of its bank covenants as of December 31, 2010. The revolving credit facility balance as of December 31, 2010 was $19.5 million.

The Company has two term loans with its banking facility, one for $3.0 million which matures on January 29, 2012 and one for $8.0 million which matures on October 21, 2013. The term loans bear interest per annum at a variable rate equal to the greater of the bank’s stated prime rate, or 4%, plus a margin of 75 basis points. The interest rate during 2010 and on December 31, 2010 on the term loans under was 4.75%. The combined balance of the term loans as of December 31, 2010, was $8.7 million.

The Company also has a $5.0 million equipment loan that expires May 2011. The interest rate and outstanding balance on the equipment loan was 7.6% and $0.4 million, respectively, as of December 31, 2010.

The total debt outstanding as of December 31, 2010 was $28.7 million.

Capital Expenditures

Capital expenditures were $3.8 million in the year ended December 31, 2010, primarily due to continued investment in our Asian subsidiaries as well as a build out of our manufacturing facility in Austin, Texas. Capital expenditures were $0.7 million in the year ended January 1, 2010, primarily due to the fixed assets acquired from Allegro for our Singapore location. We made capital expenditures of $9.4 million in the year ended January 2,

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2009, $7.7 million of which was used for our new headquarters in Hayward, California and $1.7 million was used for expansion of our facilities in China.

The Company’s anticipated capital expenditures for 2011 are approximately $3.9 million.

Contractual Obligations

Other than operating leases for certain equipment and real estate, we have no off-balance sheet transactions, unconditional purchase obligations or similar instruments and, other than the revolving credit facility described above, are not a guarantor of any other entities’ debt or other financial obligations. The following table summarizes our future minimum lease payments and principal payments under debt obligations as of December 31, 2010 (in thousands):

Recently Issued Accounting Standards

During the second quarter of 2009, the Company adopted the FASB’s guidance regarding the disclosures about fair value of financial instruments, which requires disclosure about fair value of financial instruments in interim and annual financial statements. This guidance also amends previous guidance regarding interim financial reporting, to require those disclosures in summarized financial information at interim reporting periods. The adoption of this guidance had no financial impact on the Company’s condensed consolidated financial statements or related footnotes.

In May 2009, the FASB issued its guidance regarding subsequent events, which established general accounting standards and disclosure for subsequent events. The Company adopted this guidance during its second quarter of 2009.

In June 2009, the FASB issued guidance regarding accounting standards codification and the hierarchy of generally accepted accounting principles. This guidance has become the single official source of authoritative U.S. GAAP (other than guidance issued by the SEC), superseding existing FASB, American Institute of Certified Public Accountants, Emerging Issues Task Force (“EITF”), and related literature. One level of authoritative U.S. GAAP will exist, and all other literature will be considered non-authoritative. The Company has adopted this guidance and has updated its disclosures to conform to the Codification in this Form 10-K.

During the first quarter of 2009 the Company adopted the FASB’s guidance regarding the determination of the useful life of intangible assets which amends the factors an entity should consider in developing renewal or extension assumptions used in determining the useful life of recognized intangible assets under the FASB’s

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guidance regarding goodwill and other intangible assets. The adoption of this guidance had no financial impact on the Company’s condensed consolidated financial statements or related footnotes.

In April 2009, the FASB issued guidance regarding the determining fair value when the volume and level of activity for the asset or liability have significantly decreased and identifying transactions that are not orderly which provides additional guidance for estimating fair value when the market activity for an asset or liability has declined significantly. During the quarter ended June 26, 2009, we adopted this guidance, which did not have a financial impact on the Company’s consolidated financial statements or related footnotes.

Market risk represents the risk of changes in value of financial instruments caused by fluctuations in interest rates and foreign exchange rates.

Foreign Exchange Rates

Currently, a significant majority of our sales and arrangements with third-party suppliers provide for pricing and payment in US dollars, and, therefore, are not subject to material exchange rate fluctuations. Therefore, we do not expect foreign currency exchange rate fluctuations to have a material effect on our results of operations. Increases in the value of the United States’ dollar relative to other currencies would make our products more expensive, which could negatively impact our ability to compete. Conversely, decreases in the value of the US dollar relative to other currencies could result in our suppliers raising their prices in order to continue doing business with us.

Recently, Chinese authorities have relaxed controls of its currency, the Renminbi, and allowed the currency to strengthen against other world currencies. The Company continues to monitor any potential impact of the Renminbi currency revaluation on its operations in China as well as globally.

Interest Rates

Our interest rate risk relates primarily to our third party debt which totals $28.7 million and carries interest rates pegged to the LIBOR and PRIME rates. An immediate increase in interest rates of 100 basis points would increase our interest expense by approximately $70,000 per quarter. This would be partially offset by increased interest income on our invested cash. Conversely, an immediate decline of 100 basis points in interest rates would decrease our interest expense by approximately $70,000 per quarter. This would be partially offset by decreased interest income on our invested cash.

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INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of

Ultra Clean Holdings, Inc.

Hayward, California

We have audited the accompanying consolidated balance sheets of Ultra Clean Holding, Inc. and subsidiaries (the “Company”) as of December 31, 2010 and January 1, 2010, and the related consolidated statements of operations, stockholders’ equity, and cash flows for each of the three years in the period ended December 31, 2010. These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such consolidated financial statements present fairly, in all material respects, the financial position of Ultra Clean Holdings, Inc. and subsidiaries at December 31, 2010 and January 1, 2010, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2010, in conformity with accounting principles generally accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Company’s internal control over financial reporting as of December 31, 2010, based on the criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated March 16, 2011 expressed an unqualified opinion on the Company’s internal control over financial reporting.

/s/ Deloitte & Touche LLP

San Jose, California

March 16, 2011    

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Ultra Clean Holdings, Inc.

Consolidated Balance Sheets

(See notes to consolidated financial statements)

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Ultra Clean Holdings, Inc.

Consolidated Statements of Operations

(See notes to consolidated financial statements)

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Ultra Clean Holdings, Inc.

Consolidated Statements of Stockholders’ Equity