On March 28, 2025, the Hengqin Guangdong-Macao In-Depth Cooperation Zone Executive Committee and the Shenzhen Stock Exchange successfully held a strategic cooperation agreement signing ceremony and the second Pre-IPO Candidate Recognition event in Hengqin. Deputy Directors of the Cooperation Zone Executive Committee, Fu Yongge and Su Kun, attended the event. At the ceremony, Hengqin Yancheng Biotechnology Co., Ltd. was officially included in the Cooperation Zone’s Pre-IPO Candidate Development Program.