Hangzhou Fist Chemical Co., Ltd. was foumded in 1996, is a share limited company held in control by Zhejiang Lantian Environmental Protection Hi-Tech Co.,Ltd. (Zhejiang Chemical Industry Research Institute), the other partners are Grandberg Limited (Hongkong), Zhejiang Xiaoshan No.2 Chemical and Plastics Factory. Our company engages in research and manufacture of ODS (Ozone Depleting Substances) alternatives, the technology of the company comes from National Engineering Technology Research Center for ODS-Consuming Substitute and Zhejiang Fluorin Chemical Engineering Technology Centre. Our plants are located at the Hangzhou. The factory occupies an area of 22000M2. Our products are: HFCs and CFCs, parts of them are: HCFC-141b, HCFC-142b, HFC152a, .They can be used as refrigerant, foaming agent of polyurethane, cleaning agent and aerosol propellant. Our quality target is "all participate, general management, win through quality, clients-oriented". The quality of product is our life, the sincere service is our object, and the satisfaction of users is our upmost pursuing. We manufacture HFC-152a and HCFC-141b based on our own patents in china. The Pantent No. is: 1037097 1037600 1036778. In 2002 we got ISO9002 quality systerm certificnte.