Joan Robinson-Berry has served as a member of Proterra’s board of directors since April 2021. Previously, Robinson-Berry served in a variety of positions for The Boeing Company, a publicly held multi-national aerospace manufacturing corporation, and its subsidiaries for over 20 years. Robinson-Berry served as the Vice President and Chief Engineer of Boeing Global Services, Inc. between September 2019 and July 2020 and as the Vice President of Engineering of Modifications and Maintenance of Boeing Global Services, Inc. between March 2018 and September 2019. Prior to these roles, Robinson-Berry served as the Vice President and General Manager of Boeing South Carolina for The Boeing Company, as the Vice President of Supplier Management and Chief Procurement Officer for The Boeing Company’s Shared Services Group business unit, and as the Director of Supplier Management and Chief Procurement Officer of Boeing Phantom Works, an operating division of The Boeing Company. Robinson-Berry currently serves on the board of directors of Valmont Industries, Inc. a publicly held American manufacturer of Valley center pivot and linear irrigation equipment. Robinson-Berry earned a Bachelor of Science in Engineering from California State Polytechnic University and an MBA in Engineering and Industrial Management from West Coast University.