Beijing Tigsun Biotinge Science & Technology Co., Ltd. (Abbreviated in Tigsun) is a hi-tech enterprise which specializes in R&D, production and distribution of biopharmaceutical and medical diagnostic products and reagents.

Tigsun currently has more than 80 kinds of diagnostic test kits and reagents for in vitro use which include ELISA kits, enhanced chemiluminescence immunoassay kits, reagents as well as III class medical instruments authorized by the State Food and Drug Administration (SFDA) in China. So far, the company has got 62 ECLIA products licensed for manufacturing and sales in China and abroad. Applications for other 20 ECLIA products have been submitted to SFDA and will be licensed soon.

Tigsun is the first and the only manufacturer licensed for all Hepatitis B ECLIA test reagents in China. Except for reagents, Tigsun also provides various instruments for Chemiluminescence Immunoassay to different clients.