Ningxia Guteng is a subsidiary of zhangjiagang free trade zone sky international trading co., ltd., which was established in 2022, in order to give  better serve for our customers. Zhangjiagang Sikai international trade Co., Ltd.is one of the largest chemical trading enterprises in China. It was established in 2008, with an annual product sales volume of about 20000-30000 tons. Our main export customers are BASF, LG Chem, Hyosung, INVISTA, Oxyde chemicals and other world-famous large companies. We also have close trade relations with Sinopec, Chongqing Jianfeng, Xinjiang Tunhe, etc. Our main products are 1.4-butanediol, methyl ether, NMP, PTA, QTA, tetrahydrofuran, polytetrahydrofuran ether, etc.