On November 15, 2023, Wendy Hayes informed the Board of Directors of TuSimple Holdings Inc. that she will not stand for re-election to the Board at the Company?s 2023 Annual Meeting of Stockholders to be held on December 13, 2023. Ms. Hayes? decision was not based on any disagreement with the Company or management, and she will remain a director until the 2023 Annual Meeting.

During Ms. Hayes? tenure and under her leadership as the chair of the Audit Committee of the Board, the Company successfully engaged a new independent registered public accounting firm and became current in its periodic reporting obligations with the Securities and Exchange Commission.