Chongqing ChangFeng Chemical Co.,Ltd. is a leading manufacturer of high performance chemicals that use phosgene and aromatic amines as main intermediates. A major phosgene derivative production base, we share the largest capacity for phosgene production in China and offer a variety of products. We are proud to be one of the world's largest manufacturers of Benzophenone, production of which uses the highly efficient phosgene-based process, with a current annual capacity of 5000 metric tons and expansion efforts underway. Other top-selling products include Ethyl Centralite, Methyl Centralite, Diphenyl Carbonate, Tetramethylurea, Tetrabutylurea, and others. ChangFeng Chemical is located in an area rich in natural gas, our factory possesses state-of-the-art natural gas conversion/separation equipment from Linde AG, Germany. With this equipment we produce the high purity H2 and CO used in our manufacture of finished Aniline and also the phosgene used in derivatives such as Benzophenone. With more than thirty years of production experience, a global customer base, and an active Research and Development Department, ChangFeng is an established and rapidly-growing global enterprise. New growth initiatives for our global business include the production and marketing of Cellulose, Chloroprene Rubber and PVC Stablizers. For Benzophenone, Cellulose, Chloroprene Rubber, PVC Stablizers and your other chemical needs, we invite you to contact us for a technical exchange. Headquarters: http://www.changfengchem.com/ Tel: 0086-23-6789-6333 (hot line) Fax: 0086-23-6789-6677 E-mail: info@changfengchem.com /changfeng11119@hotmail.com Contact Person:Mr.Edward Zhang, Deputy General Manager Add：30th Floor, Longhu Ziduxingzuo Building A, 1st Branch,YuSong Rd., Yubei District, Chongqing, China (Your enquiry will be replied within 24 working hours)