On August 15, 2019, Huisheng Liu submitted his resignation from the Board of Directors of Power Solutions International, Inc. and all committees thereof, effective August 20, 2019. Mr. Liu was a member of the Board’s compensation committee. Mr. Liu’s resignation is not based upon any disagreement with the Company on any matter relating to the respective operations, policies, or practices of the Company. The board appointed Mr. Wu as a director effective immediately. Mr. Wu has served as the Chief Financial Officer, International Business of Weichai Group Holdings Limited. Mr. Wu also serves as a member of the board of directors of Weichai and a number of Weichai affiliates. Mr. Wu joined Weichai Group in 2012 and previously served as Senior Manager, International Business. Prior to joining Weichai Group, Mr. Wu was employed at PriceWaterhouseCoopers in various roles of increasing seniority from 2003 until 2012.