Lee's Pharmaceutical Holdings Ltd. engages in the development, manufacturing, and sale of pharmaceutical products. It operates through the Proprietary and Generic Products and Licensed-in Products segments. The Proprietary and Generic Products segment is involved in the manufacturing and sales of self-developed and generic pharmaceutical products. The Licensed-in Products segment focuses on the trading of licensed-in pharmaceutical products. The company was founded by Xiao Yi Li in 1994 and is headquartered in Hong Kong.