Haisen Pharmaceutical

Zhejiang Haisen Pharmaceutical is a prominent Chinese pharmaceutical enterprise specializing in the research, development, production, and sale of active pharmaceutical ingredients (APIs) and chemical intermediates. The company is a leading global supplier of analgesic and antipyretic drugs, most notably Metamizole Sodium (Analgin) and Paracetamol. Its diversified product portfolio also includes specialty APIs for gastrointestinal conditions, such as Sucralfate, and cardiovascular treatments like Atorvastatin Calcium. Haisen Pharmaceutical operates large-scale manufacturing facilities that adhere to international GMP standards and exports its products to markets across Europe, Southeast Asia, and North America. Listed on the Shenzhen Stock Exchange, the company is recognized as a national high-tech enterprise and a key player in the global small molecule API supply chain.