Not closed down. According to Aiqi's investigation, Kexing (Beijing Kexing Biological Products Co., Ltd.) is a biological high-tech enterprise jointly funded by Kexing Holdings (Hong Kong) Co., Ltd. and Beijing Peking University Weiming Biological Engineering Group Co., Ltd., which was established in Beijing on 200 1 and registered in Haidian District Market Supervision Administration of Beijing, mainly engaged in drug wholesale, drug import and export and other businesses. , as of March 2024 13.