Mr. Sember has served as a director of Quoin Inc. since May 2021 and as a director of Quoin Ltd. since October 28, 2021. In his 40-year career, Mr. Sember has been COO or CEO of five diverse pharmaceutical companies ranging from drug discovery tool providers, to therapeutically-focused biotechnology companies, to medical devices. He served as Chief Executive Officer of RaeSedo, Inc., of Regulonix Holding, and of Palyon Medical Corporation. At Marion Laboratories (later Marion Merrell Dow) Mr. Sember handled roles including sales, research and R&D program management. As Executive VP of Business Development for Élan Corporation, he was responsible for strategic collaborations, mergers and acquisitions. Mr. Sember has consulted for numerous companies and has extensive public and private board experience. He has served as the Chairman of the Board of Paylon Medical Corporation and of BioIndustry Organization of Southern Arizona, a non-profit trade group. Currently Mr. Sember serves as Chair of the Screening Panel and Board member for the number-one-ranked Desert Angels, a Tucson, AZ-based group of angel investors. Mr. Sember earned a Bachelor of Science degree from the University of Pittsburgh and an MBA from Rockhurst University.