Tangshan Sanyou Group Co., Ltd is a key state-owned enterprise which has ranked first in the chemical industry of Hebei Province and is also a leading soldier in the soda ash field of the whole country. It has nine subsidiary companies, such as: Tangshan Sanyou Chemical Industries Co., Ltd; Tangshan Sanyou Group Xingda Chemical Fibre Co., Ltd Tangshan Chlor-Alkali Co., Ltd; and Tangshan Sanyou Zhida Calcium Industry Co., Ltd etc. The total assets have reached to around 9billion Yuan RMB and the proceeds of sale is 7 billion Yuan RMB. The employee all in the group is around 10, 000. The output reaches the following amount: SODA ASH 2million tons/year, VISCOSE STAPLE FIBRE 160, 000 tons/year, PVC RESIN 300, 000 tons/year, CAUSTIC SODA 300, 000 tons/year, SALT 520, 000 tons/year and CALCIUM CHLORIDE 150, 000 tons/year. The output of VSF ranked 1st and soda ash ranged the 2nd in China.