Zhejiang Sixian Pharmaceutical Co.,Ltd.(ZJSXPC) is an enterprise engaged in R &D and manufacturing bulk drugs and intermediates. The company has national GMP and international ISO14001 certification. The total assets of the company amount to as much as over RMB ¥100 million,including the capital assets of RMB ¥50 million. It covers an area of over thirty thousand m2. The company has four workshops and one well-equipped R&D and Quality Inspection Center. Its main products are:Rifaximin,Trimethy acetaldehyde/Pivalaldehyde,Levofloxacin lactate,Rifamycin-O,Pyruvic aldehyde dimethyl acetal,Cyclic acid....etc.. The products are sold in most of the regions in China and more than twenty countries in the world.