Shanghai Primeno Amino Acid Co., Ltd. is a foreign-owned limited liability company established on September 30, 1998. The legal representative is Yuchao Zang. Its registered address is located at No. 158, Xintuan Road, Qingpu Industrial Park, Shanghai. The company's main business is the research and development, production and sales of pharmaceutical-grade amino acids and food additive amino acids. It implements Japanese Concorde standards and Chinese Pharmacopoeia standards, and holds a pharmaceutical production license and EU export qualification.