超威洁净控股 UCTT

Mr. Jinsong Xiao joined UCT as Chief Executive Officer and a member of our board of directors in September 2025. Mr. Xiao is a proven technology leader with a successful track record of unlocking value through cutting-edge technologies, market expansion, and operational excellence. With over 30 years of experience in the semiconductor, solar, and display industries, he spent 19 years at Applied Materials in a range of leadership roles, most recently as Corporate Vice President and General Manager of the company's multi-billion-dollar semiconductor ALD product group. He joined Applied Materials in 2006 through the acquisition of Applied Films, where he was President of the China branch, overseeing operations, service and sales. Mr. Xiao holds a B.S. in Applied Physics from Dalian University of Technology, an MBA from Indiana University's Kelley School of Business, and has completed executive leadership training at Stanford University.

Chris Cook has served as our Chief Business Officer since August 2025. Mr. Cook joined the Company as the President of Products Business in April 2022. Before joining UCT, Mr. Cook served as Executive Vice President and Chief Marketing Officer of Cypress Semiconductor from March 2017 to April 2020 when the company was acquired by Infineon Technologies AG. Mr. Cook served as Founder, CEO and Adviser at Cauz Colony from June 2015 to December 2018. Prior to that, he served as President of Flex Power, the power supply business of Flextronics International Ltd. from January 2012 to June 2015. Mr. Cook joined Infineon Technologies AG in 2003 and served as its Vice President and General Manager, RF and Protection Devices from May 2008 to December 2011, its Managing Director, Infineon Technologies North America from July 2007 to December 2008 and Vice President and General Manager, AI Marketing from May 2003 to May 2008. He previously held various roles of increasing responsibility at Renesas Technology (formerly Hitachi Semiconductor) from 1995 to 2003. Mr. Cook holds a B.S. in Electrical Engineering and Technology from Purdue University and completed the Program for Leadership Development at Harvard Business School.

Mr. Clarence L. Granger has served as our Chairman since October 2006 and has served as our interim Chief Executive Officer from March 4, 2025 to September 1, 2025. Mr. Granger was integral to the successful onboarding of and transition to our new CEO. From 1996 to 2015, Mr. Granger served in multiple roles with UCT including Chief Operating Officer and Executive Vice President of Operations, culminating with 12 years as our Chief Executive Officer until his retirement. Before joining UCT, Mr. Granger held executive management roles at Seagate Technology, HMT Technology and Xidex, including the position of Chief Executive Officer for HMT Technology. Mr. Granger has a B.S. in Industrial Engineering from the University of California at Berkeley and an M.S. in Industrial Engineering from Stanford University.

Mr. Ernest E. Maddock has held leadership positions at multiple global companies during his career. Mr. Maddock served as Senior Vice President and Chief Financial Officer at Micron Technology from 2015 until his retirement in 2018. Prior to joining Micron, Mr. Maddock served as Executive Vice President and Chief Financial Officer of Riverbed Technology. Before joining Riverbed, he spent 15 years at Lam Research Corporation (Lam), rising to Executive Vice President and Chief Financial Officer. His previous roles at Lam included Vice President, Customer Support Business Group; and Group Vice President and Senior Vice President of Global Operations. Currently, Mr. Maddock serves on the Board of Directors of Avnet, Inc., Ouster Inc., Teradyne, Inc., and previously served as a member of the Board of Directors for Intersil Corporation. Mr. Maddock holds a B.S. in Industrial Management from the Georgia Institute of Technology and an M.B.A. from Georgia State University.

Ms. Emily Maddox Liggett is the Founder and Chief Executive Officer of Liggett Advisors, a strategy/implementation consulting business, since 2017. Previously, Ms. Liggett was CEO of NovaTorque, Inc., CEO of Apexon, CEO of Capstone Turbine and CEO of Elo TouchSystems. Before these roles, she held assignments in sales, marketing, operations and general management at Raychem Corporation, including GM of the Raychem Telecommunications Division. Ms. Liggett is presently a director of Materion Corporation. She was previously a director of Kaiser Aluminum, MTS Systems Corporation and of Immersion Corporation, and serves on the Purdue Research Foundation Board of Directors. As a board member, Ms. Liggett has developed expertise in oversight of corporate sustainability matters including environmental, social and governance best practices and implementation. She teaches Corporate Governance at the Stanford Graduate School of Business. Ms. Liggett has a B.S. in Chemical Engineering from Purdue University, an M.S. degree in Manufacturing Systems and an M.B.A. from Stanford University.

Ms. Joanne Solomon served as Chief Financial Officer at Maxeon Solar Technologies, Ltd. from 2020 until 2021 and at Katerra Inc. from 2017 until 2019. Ms. Solomon spent sixteen years at Amkor Technology, Inc. (Amkor) from 2000 until 2016. She served as Chief Financial Officer from 2007 until 2016. Her previous roles at Amkor included, among others, Senior Vice President, Finance and Corporate Controller, and Senior Vice President, Finance and Treasurer, from 2000 until 2007. Ms. Solomon holds a B.S. in Business Administration, Accounting and Finance from Drexel University, and an M.B.A. in International Management from Thunderbird School of Global Management (now part of Arizona State University). Ms. Solomon also currently serves as a member of the Board of Directors for Viavi Solutions Inc. since 2022, and previously served as a member of the Board of Director for Boys and Girls Clubs of Metropolitan Phoenix (non-profit) from 2007 until 2017.

Ms. Jacqueline A. Seto is currently Principal of Side People Consulting, partnering with emerging companies and with non-profit organizations advising on strategic planning and leadership consulting. Previously, Ms. Seto spent 22 years at Lam Research, where she advanced to the position of Group Vice President and General Manager of the Clean Business Unit. Her previous roles at Lam included Corporate Vice President and General Manager in the Reliant Business Unit, Vice President of Product and Strategic Marketing and Managing Director of Emerging Businesses. Ms. Seto currently serves as a member of the Faculty Advancement Board for McGill University Faculty of Engineering and as the President and a member of the Board of Directors for the International Women's Forum Oregon. She previously served as a member of the Board of Directors for Oregon Museum of Science and Industry, TriAegis Residential Services, for Mastersranking.com and as the Board Secretary of Prevent Child Abuse Oregon. As a board member, Ms. Seto has developed expertise in oversight of corporate sustainability matters including environmental, social and governance best practices and implementation. Ms. Seto holds a Bachelor of Engineering in Chemical Engineering from McGill University.

Mr. David T. ibnAle is a Founding and Managing Partner of Advance Venture Partners LLC. He has 28 years of experience as an investor in high-growth technology companies. Before co-founding AVP, Mr. ibnAle was a Managing Director of TPG Growth, the growth equity and middle-market investment platform of TPG. Prior to joining TPG Growth, he was an investment professional and Partner at Francisco Partners and an investment professional at Summit Partners. Mr. ibnAle has served on the Boards of Directors of several public and private technology companies, and currently serves on the Boards of Affinity, Alto Solutions, AutoLeap, Morning Consult, Boulder Care and Midi Health. Mr. ibnAle also serves as Chair of the Board of Trustees of the San Francisco Foundation. Mr. ibnAle holds a B.A. in Public Policy and an M.A. in International Development Policy from Stanford University, and an M.B.A. from the Stanford University Graduate School of Business.

On September 28, 2026, the Board of Directors of the Company appointed Alexander Davern to serve as a member of the Board, effective September 28, 2026. Mr. Davern is a former public-company chief executive officer and has more than 30 years of experience in global industrial technology businesses. He served at National Instruments Corporation from 1994 to 2020, including as Chief Executive Officer from 2017 to 2020, Chief Operating Officer from 2010 to 2016, and Chief Financial Officer from 1998 to 2010. Mr. Davern remained a director of National Instruments through its acquisition by Emerson Electric Co. in 2023. He currently serves as an independent director of Cirrus Logic, Inc., Computer Modelling Group Ltd. and Spectris plc. Mr. Davern holds a Bachelor of Commerce degree from University College Dublin and a diploma in professional accounting.

On July 8, 2026, Ultra Clean Holdings, Inc. announced that Michael Keogh will become the Company's next Chief Financial Officer, effective August 5, 2026. Mr. Keogh recently co-founded BuildQM, Inc. in March 2025, and has been serving as an advisor to Frontera Holding Company, Inc. since November 2024. Prior to that, Mr. Keogh served as Chief Financial Officer of Ford Model e Segment and Ford Integrated Services at Ford Motor Co., leading their global finance organization from October 2022 to September 2024. Mr. Keogh served as both Chief Financial Officer and Chief Operating Officer at Bright Machines, Inc., a business-to-business automation company, from July 2021 to June 2022. In that role, Mr. Keogh led the company's IPO readiness initiatives, capital raising activities, and SEC reporting efforts. Prior to that, Mr. Keogh served as Senior Vice President and General Manager of Stanley X, the innovation and venture business unit of Stanley Black & Decker, Inc., from January 2019 to July 2021, and as Chief Financial Officer, Global Emerging Markets and Stanley X Incubation from July 2018 to December 2018. Before joining Stanley Black & Decker, Mr. Keogh held several finance leadership positions at Apple Inc. from June 2012 to July 2018, including Senior Finance Director, Research and Development and Corporate Development, Director of Corporate Financial Planning and Analysis, and Director of Finance, Worldwide Operations. Earlier in his career, Mr. Keogh held finance and general management leadership positions at Intel Corporation from July 1999 to June 2012 in the United States, China, Malaysia and the Philippines, including Philippines Chief Financial Officer, Interim General Manager, Senior Director of Strategy and other finance and operations leadership roles.

Sam Johnson has served as our Head of the Services Division since August 15, 2025. Mr. Johnson joined the Company as Senior Vice President, Strategy, in March 2025. Prior to joining the Company, Mr. Johnson served as Principal, Portfolio Operations and Head of ESG at Arcline Investment Management, a private equity firm, from December 2019 to March 2025. Previously, Mr. Johnson was a consultant at Bain & Company, a management consulting firm, from July 2017 to December 2019. Earlier in his career, from August 2010 to May 2015, Mr. Johnson served in various capacities at Chevron Corporation, an integrated oil and gas company. Mr. Johnson holds a B.S. in Electrical and Computer Engineering from Cornell University and an M.B.A. from Harvard Business School.

Brian E. Harding has served as our Senior Vice President, Chief Accounting Officer since June 2022. Prior to joining UCT, Mr. Harding served as Vice President and Corporate Controller at The Greenbrier Companies from March 2020 to June 2022. Prior to that, Mr. Harding served as Vice President, Corporate Controller and Principal Accounting Officer from May 2016 to March 2020 and as Director of Finance and Accounting from May 2014 to May 2016 at FLIR Systems, Inc. (now part of Teledyne Technologies). He previously served in various roles of increasing responsibility at KPMG LLP and its international partner firms from October 2003 to May 2014. Mr. Harding holds a B.A. in Business Administration with concentrations in Accounting and Finance from Pacific University and completed the Executive Leadership and Innovation Program at the Babson Graduate School of Business.

On January 25, 2026, the Board of Directors of the Company appointed Mr. Robert Wunar as the Company's Chief Operating Officer, effective March 23, 2026. Prior to joining the Company, Mr. Wunar, 58, served as Managing Director of Business Unit Operations at Applied Materials, Inc. from November 2020 to January 2026, as Managing Partner at Applied Manufacturing Group, Inc. from December 2019 to November 2020, as Principal at HelmSmart Consulting from January 2017 to December 2019, and as Senior Director, Business Operations, at SolarCity from December 2014 to December 2016. Prior to that, he served in various roles at Applied Materials, Inc. from July 1992 to December 2014. Mr. Wunar holds a Bachelor of Science in Electronics Engineering Technology from DeVry Institute of Technology.