Hunan Zhongcheng Chemicals Co., Ltd. is rebuilted by Guangdong Zhongcheng Chemicals Co., Ltd., who has bought 70% shares form Zhuzhou sodium Hydorsulphite Factory, it was set up November 16 1998. 
　　Hunan Zhongcheng Chemicals Co., Ltd. mainly producing Sodium Hydrosulphite, has the annual output ability of 30,000 ton per year and rank second in our country and fourth in the world in the scale of production. The products sell well in China and abroad, and find a market in over 60 countries and areas in the world.


　　The founding of Hunan Zhongcheng Chemicals Co., Ltd. marked a new period of sodium Hydrosulphite industries in our country and the development of Zhongcheng Chemicals Co., Ltd., stride forward towards Large-scale chemical industry group and finally realize the objective of "thrive national industry, found international famous brand."