James Xiao serves as President and Chief Executive Officer of Ultra Clean Holdings, Inc. (UCT), a global leader in critical cleaning, analytical measurement products, and related services for the semiconductor, display, and high-tech industries. With more than 25 years of experience in the semiconductor sector, Xiao has played a pivotal role in advancing UCT's technological innovation and market expansion. He assumed the CEO position in February 2021, succeeding Jim Hart, and continues to guide the company through dynamic industry transformations, emphasizing operational efficiency and strategic growth. Xiao joined UCT in 2002 as Director of Engineering after holding key engineering and management roles at Applied Materials, where he honed his expertise in semiconductor manufacturing processes. A graduate of Shanghai Jiao Tong University with a B.S. in Electrical Engineering and the University of California, Los Angeles with an M.S. in Electrical Engineering, he rapidly progressed through UCT's leadership ranks. Notable positions include Vice President of Global Operations, Executive Vice President, and President of the Semiconductor Products Group, where he oversaw product development and supply chain optimization. Under Xiao's leadership, UCT has achieved significant milestones, including record revenues, expansion into advanced packaging and analytical services, and enhanced global manufacturing capabilities. His focus on sustainability, customer-centric innovation, and talent development has solidified UCT's position as a trusted partner to leading chipmakers, driving consistent shareholder value and positioning the company for future growth in emerging technologies like AI and 5G.