电力解决方案国际 PSIX

Effective May 12, 2026, the Board of Directors of the Company appointed Xun (Kenneth) Li, the Company's Chief Financial Officer, to serve as Interim Chief Executive Officer of the Company (principal executive officer), in addition to his continuing role as Chief Financial Officer (principal financial officer). Mr. Li, 56, has served as the Company's Chief Financial Officer since August 26, 2022. From 2020 to August 2022, Mr. Li served as Chief Financial Officer of ND Paper, a pulp, packaging and paper company, where he was a member of the executive leadership team with responsibility for finance and accounting functions and strategic planning. From 2008 to 2020, Mr. Li held financial leadership positions at Caterpillar Inc., a publicly traded company, including serving as Chief Financial Officer of its machine product group from 2013 to 2020. From 2003 to 2008, Mr. Li held finance leadership roles at Ford Motor Company, a publicly traded company. Mr. Li holds a Master of Business Administration with high distinction and a Master of Science in Accounting from the University of Michigan, a Master of Science in Mechanical Engineering from the University of Oklahoma, and a Bachelor of Science in Mechanical Engineering from Shanghai Jiao Tong University. He is a Certified Public Accountant in the State of Illinois. Mr. Xun Kenneth Li will resign as Interim Chief Executive Officer of the Company, effective as of August 17, 2026.

Mr. Frank Simpkins has served as a director of the Company since July 13, 2017. Mr. Simpkins is the Chair of the Audit Committee and is also a member of the Nominating Committee and the Strategic Committee. Mr. Simpkins has over 25 years of executive management and financial experience. Mr. Simpkins served as a member of the Board of Directors of Exro Technologies Inc., and as the Chair of the Audit Committee and a member of the Nominating and Governance Committee, from July 2023 until November 2025. From June 2016 to December 2016, he served as Chief Financial Officer of Emerson Network Power, part of Emerson Electric Co., a publicly traded company on the New York Stock Exchange (the NYSE). From 2006 to 2015, Mr. Simpkins served as Vice President and Chief Financial Officer of Kennametal Inc., a publicly traded company on the NYSE and a global leader in the design and manufacture of engineered components, advanced materials and cutting tools. Prior to that role, Mr. Simpkins held various positions within Kennametal since 1995. Prior to Kennametal, he worked as a Manager for PricewaterhouseCoopers from 1986 to 1995. Mr. Simpkins holds a Bachelor of Science degree in Accounting from Pennsylvania State University. Mr. Simpkins qualifies as an Audit Committee Financial Expert under applicable SEC regulations and has substantial public-company reporting experience gained from his roles as Chief Financial Officer during his career.

Ms. Courtney Shea has served as a director of the Company since July 24, 2025. Ms. Shea is a member of the Audit Committee and the Compensation Committee. Ms. Shea has over 30 years' experience in U.S. public finance in which she served as both a municipal advisor and investment banker working with state and local governments, not for profits and universities, in their issuance of municipal bonds. Ms. Shea served as the Managing Member of Columbia Capital Management, a national municipal advisory firm, from September 2013 until her retirement from the firm in April 2021. Prior to her tenure at Columbia Capital Management, Ms. Shea was an investment banker with several Wall Street firms, including serving as National Head of Public Finance at a division of ABN AMRO for five years. Ms. Shea has served as an independent director and member of Audit, Environmental and Social Responsibility, Finance and Risk Oversight Committees of Assured Guaranty Ltd., a public company listed on the New York Stock Exchange since May 2021. Ms. Shea was an independent director and Audit Committee chair of the Professional Diversity Network from March 2019 until August 2024. Additionally, she serves on several not-for-profit boards, including the Joffrey Ballet and the Milken Institute Center for Financial Markets Public Finance Advisory Council. Ms. Shea was a founding member of Women in Public Finance, a women's professional organization founded in 1996, and has been a Certified Director by the National Association of Corporate Directors. Ms. Shea holds a Cybersecurity Certification from the Private Directors Association. Ms. Shea is an Illinois licensed attorney. Ms. Shea has a Bachelor's degree in Economics from University of Notre Dame, a Juris Doctor degree from Loyola University Law School, and a Masters of Business Administration degree from University of Chicago Graduate School of Business.

Zhaoying (Dorothy) Du was appointed General Counsel and Corporate Secretary of Power Solutions International, Inc. on September 15, 2025. As General Counsel and Corporate Secretary, Ms. Du has responsibility for the Company's legal affairs, corporate governance, compliance, risk management, securities, and related functions, and supports the Chief Executive Officer and Board of Directors on legal and strategic matters. Ms. Du has 20 years of experience providing strategic legal counsel to U.S. and multinational companies, leading initiatives to address complex commercial and regulatory matters, helping businesses manage risks, drive innovation, and implement pragmatic legal solutions that support business success. From March 2025 to September 2025, Ms. Du led the global supply chain legal team of Lenovo, a publicly traded company. She was a member of the Lenovo global supply chain executive leadership team, advising on procurement, factory setup, trade compliance, regulatory risks, and contract negotiations across global operations. From February 2016 to March 2025, Ms. Du served as Global Head of Legal of Motorola Mobility, a Lenovo company, where she was a member of the executive leadership team, overseeing matters including artificial intelligence, R&D, commercial contracts, intellectual property, compliance, data privacy and information security, corporate governance, corporate secretary, litigation, and other legal functions. From 2013 to 2016, she served as General Counsel of the China operations and Senior Counsel for compliance and risk management at The Warranty Group (now part of Assurant, Inc.). From 2005 to 2012, Ms. Du served as Co-Chair of the APAC Practice Group at Freeborn & Peters (now part of Smith, Gambrell & Russell, LLP) and as an attorney at Sonnenschein Nath & Rosenthal, LLP (now Dentons LLP), advising on cross-border transactions, securities, corporate governance, mergers and acquisitions, financing, compliance, and other complex matters. Ms. Du holds a Juris Doctor degree from the University of Missouri - Kansas City School of Law, a Master of Arts degree in Political Science from the University of Georgia, and a Bachelor of Law degree from Sun Yat-Sen University Law School. She is licensed to practice law in Illinois and is admitted to practice law in China.

Mr. Jiwen Zhang has served as a director and Chairman of the Board of the Company since March 29, 2023. Mr. Jiwen Zhang also has served as the Chair of the Strategic Committee since May 4, 2023, and as Chair of the Nominating and Governance Committee (the Nominating Committee) since October 9, 2025. Mr. Jiwen Zhang has served as Chief Executive Officer of Weichai America, which focuses on researching and developing a full line of off-road natural gas engines and engine components, since February 2023. Weichai America is a wholly owned subsidiary of Weichai Power, a publicly traded company on the Hong Kong Stock Exchange and the Shenzhen Stock Exchange. Mr. Jiwen Zhang has over twenty years of experience in the engine industry. From January 2013 to December 2022, Mr. Jiwen Zhang served as President of Kohler Power Systems, a multinational company located in Wisconsin, which specialized in diesel and gaseous generators, and was responsible for oversight of the global business operations. Prior to this, Mr. Jiwen Zhang served as Managing Director Commercial of Fiat Powertrain APAC from September 2010 to December 2012, Vice President of Volvo Penta Region Asia from May 2002 to August 2010, and Customer Service General Manager of a Caterpillar distributor Lei Shing Hong machinery from September 1994 to April 2002. Mr. Jiwen Zhang earned his EMBA from University of Texas at Arlington and Bachelor's degree of Mechanical & Electrical Engineering from University of Science and Technology of China. Mr. Jiwen Zhang serves on the Board as a Weichai designee.

Mr. Xuesen Yang has served as a director of the Company since October 9, 2025. Mr. Yang is a member of the Nominating Committee and the Compensation Committee. Mr. Xuesen Yang currently serves as Vice President of Weichai Holding Group Co., Ltd., and has served as Chairman and Chief Operating Officer of Weichai America Corp. since October 1, 2025. He has over 20 years of extensive executive-level experience within the Weichai organization, with responsibilities for overseeing investment strategy, planning, and program management, including managing fixed asset investments. Mr. Yang holds a Master's degree in Technical Economy and Management from Tianjin University (2005) and a Bachelor's degree in Business Administration from Hebei Institute of Architectural Science and Technology (2003). Mr. Yang serves on the Board as a Weichai designee.

Mr. Fuzhang Yu has served as a director of the Company since July 25, 2023. Mr. Yu is a member of the Compensation Committee. Mr. Yu has served as Director of the Overseas Finance Department of Weichai Group since May 2023 and Vice Director from January 2023 to May 2023. Prior to that, Mr. Yu served as Chief Financial Officer of Shaanxi Hande Axle Co., Ltd, a leading commercial vehicle axle manufacturer in China from February 2021 to January 2023. From February 2019 to February 2021, Mr. Yu served as Chief Financial Officer of Weichai Ballard Co., Ltd (Weichai Ballard), a joint venture of Weichai Power and Ballard Power Systems Inc. Prior to his role at Weichai Ballard, Mr. Yu served in various leadership roles in the Finance Department at Weichai Power from January 2009 to February 2019. Mr. Yu earned his bachelor's degree in Management from Beijing Forestry University, China in 2009. Mr. Yu is a China certified public accountant. Mr. Yu serves on the Board as a Weichai designee.

Mr. Zhao Jin has served as a director of the Company since October 9, 2025. Mr. Jin is a member of the Strategic Committee. Mr. Jin currently serves as Vice General Manager of Weichai Holding Group Co., Ltd., a multi-field and multi-industry international group. He brings extensive experience in international business operations and cross-regional management, having held various leadership positions across multiple Weichai subsidiaries and international affiliates. Mr. Jin's current and recent leadership roles include Chairman of Ferretti International Holding S.P.A., Director of Ferretti S.P.A., Chairman of Supervisory Board of Societe Internationale des Moteurs Baudouin, and Chairman of Weichai Middle East FZE. He previously served as General Manager and Chairman of Shandong Weichai Import and Export Co., Ltd., and held senior executive positions at Weichai Power Equipment Co., Ltd., including Chairman and General Manager roles. Mr. Jin has specialized expertise in international sales, overseas marketing of power equipment, and cross-regional business management. Mr. Jin earned his Bachelor's degree in Thermal Energy & Power Engineering from Harbin Institute of Technology in 2005. Mr. Jin serves on the Board as a Weichai designee.

On July 23 2026 the Board of Directors of Power Solutions International Inc appointed Nan Richard Hu as Chief Executive Officer of the Company Mr Hu has more than 25 years of global leadership experience spanning Asia Europe and the Americas Prior to joining the Company Mr Hu spent six years at BorgWarner Inc from 2020 to 2026 most recently serving as Vice President and General Manager of the Americas Region for the Turbo and Thermal Technology business unit where he held full PL accountability for a multibillion dollar operation encompassing multiple manufacturing plants and technical centers across the United States Mexico and Brazil leading a global team of approximately 3900 employees Previously Mr Hu served as Senior Vice President and General Manager of Delphi Technologies Global Powertrain business unit where he helped navigate the company through its acquisition by BorgWarner in 2020 His career also includes senior executive roles at Eberspacher Vice President and Managing Director Asia Pacific Magna Steyr General Manager China and Korea and Magneti Marelli.

Mr. Hong He has served as a director of the Company since November 14, 2019. Mr. He is the Chair of the Compensation Committee and is also a member of the Audit Committee. Mr. He served as Director, Financial Planning & Analysis for CytomX Therapeutics (CytomX), a Nasdaq-listed biotechnology company, from February 2021 to March 2025, and previously served as a Consultant to CytomX beginning in February 2020. Previously, Mr. He served as Director of Finance and Reporting for Blackthorn Therapeutics, a clinical-stage biotechnology company, from June 2019 to December 2019. Prior to that, Mr. He served as the Head of Finance at GenapSys, Inc. from 2018 until May 2019. From 2014 until 2018, Mr. He was the Finance Director of SciClone Pharmaceuticals, Inc., a Nasdaq-listed specialty pharmaceutical company with its main operations in China. Mr. He earned his Bachelor of Science degree in Accounting from Beijing University of Technology in July 1992 and his Master of Business Administration degree from University of Chicago Booth School of Business in December 2006. Mr. He is a U.S. certified management accountant and a China certified public accountant. Mr. He qualifies as an Audit Committee Financial Expert under applicable SEC regulations and has substantial public company reporting experience gained from his roles as a financial officer and controller of public companies during his career.