Wanhuapuman Bioengineering Co., Ltd. is a joint venture established by W.H.P.M.INC in China in 1993. It is a professional manufacturer of in vitro diagnostic reagents and one of the high-tech enterprises in Beijing. Over the past 28 years, the company has been committed to the research, development, production and sales of in vitro diagnostic reagents and instruments. The company is headquartered in Los Angeles on the west coast of the United States. Through Wanhua's existing sales organization and business partners, Wanhua's sales network covers all regions of the world, such as the United States, Europe and Asian markets.

The company has passed ISO13485 and mdsap international quality management system certification, its main products have also obtained CFDA and CE certification, and its head office is also registered with FDA. It is an innovative international diagnostic reagent manufacturer, and has become one of the largest in vitro diagnostic reagent product industrialization bases in the world.