Apsiobiotech: Obtained invention patent certificate

On February 26th, Chifeng Biotech announced that the company and its wholly-owned subsidiaries Anhui Zhifei Longma Biopharmaceutical Co., Ltd. and Beijing Zhifei Green Bamboo Biopharmaceutical Co., Ltd. recently obtained an invention patent certificate issued by the State Intellectual Property Office of the People's Republic of China. The invention patent is named "Antibodies Against GII.2 Norovirus or Its Antigen Binding Fragments and Their Preparation Methods and Applications". This invention patent was obtained during the company's independent research and development process and will be applied to relevant R&D projects in the future. The acquisition of this patent certificate will not have a significant impact on the company's production and operation in the near future, but it will help further improve the company's intellectual property protection system.