Lee’s Pharmaceutical Holdings Limited is a Hong Kong-based investment holding company principally engaged in the development, manufacture, marketing and sales of pharmaceutical products. The Company operates through two segments. Proprietary Products segment is engaged in the manufacture and sales of self-developed pharmaceutical products. Its proprietary products include Yallaferon, Livaracine and Slounase, among others. Licensed-in Products segment is engaged in the trading of licensed-in pharmaceutical products. Its licensed-in products include Ferplex and Zanidip, among others. The Company’s products are for cardiovascular and infectious diseases, dermatology, oncology, gynecology and ophthalmology, among others. The Company mainly operates businesses in China and Hong Kong.