We are an international company specializing in the manufacture of APIs&Intermediates ,Phase Transfer Catalysts (PTC), Quaternary Ammonium Compounds (QUATS).
URL: http://www.yanshan-chem.com/english/index.htm in English [Translate]
The company dedicated to the development, production and marketing of chemicals. Focus on:Organic compounds,Active Pharmaceutical Ingredient(s),Nutritional products,Custom synthesis and Contract Manufacturing.
URL: http://www.chemindustry.com.cn/dayang/products.html in English [Translate]