Wai Yuen Tong Medicine Holdings Limited, an investment holding company, manufactures, processes, and retails traditional Chinese medicines, Western pharmaceutical products, and health food and personal products in Hong Kong, Mainland China, Macau, and internationally. The company offers Chinese medicines and health food products under the Wai Yuen Tong brand name; and Western pharmaceutical and personal care products under the Madame Pearl's and Pearl's brands. It also engages in the investment, holding, and selling of properties; provision of financial services; and agricultural produce exchange market operation.

As of March 31, 2022, the company operated 63 retail stores in Hong Kong. The company was founded in 1897 and is headquartered in Kowloon Bay, Hong Kong. Wai Yuen Tong Medicine Holdings Limited is a subsidiary of Rich Time Strategy Limited.