Guhan Pharmaceutical Group Co., Ltd., together with its subsidiaries, manufactures and sells traditional Chinese medicines, chemical drugs, and health food under the Guhan brand in China. It operates through the Pharmaceutical and Health Product Manufacturing and Sales Business, Active Pharmaceutical Ingredient (API) Manufacturing and Sales Business, and Other Business segments. The company offers prescription and over-the-counter drugs, such as tonics, cardiovascular drugs, children's nutritional supplements, cold and flu remedies, and heat-clearing and detoxifying drugs. It also engages in nutrition and health consulting services; Chinese herbal medicine cultivation; medical research and experimental development; cultural and artistic exchange planning; medical consultation; internet sales; technology promotion, consulting, and agency services; outpatient services; and pharmaceutical wholesale and retail activities. The company was formerly known as Tus-Pharmaceutical Group Co., Ltd. and changed its name to Guhan Pharmaceutical Group Co., Ltd. in November 2025. Guhan Pharmaceutical Group Co., Ltd. was founded in 1956 and is headquartered in Hengyang, China.