About Us Chemtron Biotech Co. Ltd., is a Sino-US joint-venture with its R&D centre in San Diego, U.S.A. and the factory local in Shanghai, China, covering an area of 27,000 square feet. We have GMP factory, and our company has been ISO 9001:2000 and ISO 13485:2012 certified, and most of our products have CE certificate. We are original manufacturer of Chemtrue® POC-test products for infectious disease, drugs of abuse, fertility, tumor markers and cardiovascular disease and rapid test reader. The current production capacity is 10million pcs per month. We promote our brand Chemtrue® to the world, and OEM cooperation is also available. Our mission is to develop and produce the highest quality of rapid test products and provide exceptional service and technical support to every customer We do believe our best products, competitive price and good service can make you satisfied.