Gyre Therapeutics, Inc. announced on October 30, 2023, immediately prior to and effective upon the Closing, Nassim Usman, Ph.D., Catalyst's President and Chief Executive Officer, ceased to be an officer of Gyre but is remaining a director of Gyre. On October 30, 2023, the Board appointed Charles Wu, Ph.D. as Gyre's Chief Executive Officer. Charles Wu, Ph.D. (Age 63).

Dr. Wu has served as a director of BC since April 2023. Dr. Wu has over 30 years of experience in the field of CMC. He joined BC as the chief technology officer in January 2020, which position he held until April 2023, and served as the general manager of BC's Cangzhou branch from January 2020 to October 2020.

He was further appointed as vice president in December 2020, which position he held until April 2023. Prior to joining BC, Dr. Wu served as a vice president of the Active Pharmaceutical Ingredient (API) division of Zhejiang Huahai Pharmaceutical Co. Ltd. (Zhejiang Huahai") from February 2019 to September 2019, as a technical consultant of Shandong Lixin Pharmaceuticals Co.

Ltd. from January 2018 to February 2019, as the general manager of Teva Pharmaceutical & Chemical (Hangzhou) Co. Ltd. from November 2016 to January 2018, as the general manager of Xellia (Taizhou) Pharmaceutical Co. Ltd. from April 2014 to November 2016, as the vice president of Lianhe Chemical Technology Co.

Ltd. from June 2011 to March 2013 and as the executive director in API production technology of Zhejiang Huahai from April 2010 to June 2011. Dr. Wu has also had extensive experience in R&D in the pharmaceutical industry, which includes his research experience at Wyeth Holdings Corporation, Honeywell International Inc. (formerly known as AlliedSignal Inc.), Rohm and Haas Company and the Virginia Polytechnic Institute and State University. Dr. Wu obtained his bachelor's degree in polymer chemistry from University of Science and Technology of China in the PRC in July 1983.

He further obtained his doctoral degree in chemistry from University of Maryland, College Park in December 1989. He obtained his MBA certificate from Tulane University in April 2004. He obtained the qualification of professor-level senior engineer from Zhejiang Province Human Resources and Social Security Department in June 2015.