Founded in 2000, Hangzhou Bioking Biochemical Engineering Co., Ltd., is located in Tangqi Ancient Town, with a registered capital of 75 million yuan. It is a high-tech enterprise specializing in the production of tartaric acid.

As the inventor of L(+)-tartaric acid biosynthesis technology, Mr. Zhang Jianguo, the founder of Bioking, is known as "Mr. Tartaric Acid of China" by the industry. The commercial application of this technology has broken the competitive pattern of the world’s tartaric acid market and left a strong mark for “made in China”.

With the responsibility of "Innovating Biotechnology, establishing green manufacturing, creating better lifestyle", Bioking continues to forge ahead, be innovative and is committed to providing better products and services for global customers, and making its due contribution to green and sustainable development.