Liaoyuan

Zhejiang Liaoyuan Pharmaceutical is a prominent Chinese pharmaceutical company specializing in the research, development, and large-scale manufacturing of active pharmaceutical ingredients (APIs) and chemical intermediates. Founded in 1991, the company has established itself as a global leader in the production of antidepressant and antiviral agents, including high-volume products like sertraline, venlafaxine, and entecavir. Liaoyuan operates as a key supplier and CDMO partner for major international pharmaceutical firms, maintaining rigorous GMP standards across its manufacturing facilities. The company's portfolio primarily focuses on central nervous system disorders, infectious diseases, and cardiovascular health. With a strong emphasis on process chemistry and vertical integration, Liaoyuan Pharmaceutical plays a critical role in the global supply chain for essential small molecule therapeutics.