Yifan Pharmaceutical Co., Ltd. engages in the research and development, production, and sale of pharmaceutical products, raw materials, and polymer materials in Southeast Asia, Europe and North America, Singapore, South Korea, Italy, China, Germany, and the United States. It offers Chinese patent medicines, chemical medicines and biological medicines; and vitamin products, including vitamin B5 and original B5. The company was formerly known as Yifan Xinfu Pharmaceutical Co., Ltd.