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Shanghai Qi Sheng Biologics Co., Ltd. was founded in 1992,is a high-tech enterprise applying biomedical material technology for R&D, production and sales of medical devices. Qi Sheng is a wholly-owned subsidiary of Shanghai Haohai Biotechnology Co., Ltd. (stock code: 06826.HK, 688366.SH), the first listed biopharmaceutical company in China to be listed on the "H-share + Science and Technology Innovation Board" at the same time. The company's main products are medical chitosan and medical sodium hyaluronate. The main products are: medical sodium hyaluronate gel, lubricanteye drop, medical chitosan, medical collagen sponge and cross-linked hyaluronic acid for injection Gel is widely used in clinical treatment fields as ophthalmology, orthopedics, general surgery, obstetrics and gynecology, and plastic and cosmetic surgery.