TONGCHEM CO.,LIMITED is a professional technology based chemical company in China dedicated to the supply and distribution of advanced pharmaceutical intermediates and nucleoside APIs. Headquartered in Shenzhen and manufacturing site located in Henan, TONGCHEM is continually expanding its business and influence in the field of nucleoside compounds. Except that, with many years growth, we had developed strong affiliation with lots of chemical factories in China through providing our associated factories with the capital assistance and technical support. We are growing up one of leading source for the pharmaceutical industry.In TONGCHEM, our dedicated team is focused on satisfying our customs need from small scale to commercial production. The professional service quality, cutting-edge production technologies and State-of -the-art facilities as well as rich sales experience in chemical world are the strengths for our services.