The Board of Directors of Power Solutions International, Inc. appointed Mr. Fabrizio Mozzi and Ms. Lei Lei as members of the Board effective as of December 7, 2021. The new board members, who will serve on the Board as designees of Weichai America Corp., PSI’s majority stockholder, will fill the positions previously held by Mr. Walter Wu and Mr. Xinghao Li, both of whom were Weichai America Corp. designees and both of whom resigned from the Board effective December 7, 2021. The Board also appointed Mr. Mozzi to Chairman of the Board and as a member of the Nominating and Governance Committee. Mr. Shaojun Sun, previously Chairman of the Board was appointed to Vice Chairman of the Board and was appointed to Chair of the Nominating and Governance Committee. Ms. Lei was appointed to Chair of the Compensation Committee. Mr. Mozzi and Ms. Lei will serve until the Company’s 2022 annual meeting of stockholders or until his or her successor is duly elected and qualifies.