On September 14, 2023, the Board of Directors of Aqua Metals, Inc, acting upon the recommendation of the Board?s Nominating and Corporate Governance Committee, appointed Sung Yi, Ph.D., P.E. to the Board. Dr. Yi was nominated to serve on the Board by Yulho Co. Ltd. (?Yulho?) pursuant to Board nomination rights granted to Yulho in the Securities Purchase Agreement between the Company and Yulho dated July 18, 2023.

Dr. Sung Yi, are 65, has 30-year hands-on experience of Battery and Fuel Cell engineering, published 300+ original articles in referred journal articles and symposia/published proceedings and published abstracts of papers presented at professional meetings. From 1994 to 2023, Dr. Yi has served in various executive roles with Hanyang University, Seoul, Korea, including Collaboration Professor for Battery Engineering, Director of Research Institute of Clean Energy, Director of Fuel Cells and Hydrogen Technology, Dean of College of Engineering III, Dean of Applied Chemical and Bio Engineering, Director of Hanyang Fusion Research, and Associate Dean of Research. Dr. Yi also serves on the Board of Directors for The Korea Engineering University, Ansan, Korea, Gyeonggi University of Science and Technology, Siheung, Korea, and the Non-executive Directors of YULHO Inc., Seoul, Korea and KWANGMU Inc., Seoul, Korea.

Dr. Yi also served as Deputy CEO and CTO of NPTech, a Hanyang University-affiliated company focused on nanotechnology. Dr. Yi also served as a visiting professor for Singapore?s Nanyang Technological University and as a director of the Tech University of Korea and of Gyeonggi College of Science and Technology. Dr. Yi obtained an undergraduate degree in chemical engineering from Hanyang University, a master?s degree in chemical engineering from the University of Iowa and a Ph.D. in Chemical Engineering from Brigham Young University.

Dr. Yi currently serves as a non-executive director of Yulho.