We Shanghai Qingteng Biotech Co., Ltd. are specialized manufacturer of Rifamycin derivatives in China from 1997.We have specialized technical team, advanced administration, and advanced quality analysis and control. Except Rifamycin Derivative products,now we can provide Hair dye intermediates and Polyurethane materials.we have fermentation and synthesis factory with GMP&ISO certificate.

“Win-Win,be a trusted partner”,welcome friends to cooperate and create a better future.