Zhengzhou Jielin Superhard material Co., Ltd., which was founded in 2002 with ISO9001:2000 quality approval and an annual turnover of US$30 million, is one of leading manufacturers engaged in producing chemicals in China, covering organic chemicals and inorganic chemicals. Nowadays, we hold several separate and advanced product lines, for producing Zinc Oxide, STPP/SHMP, Oxalic Acid, PVC Resin and DOP/DBP. Meanwhile, we also provide other relative chemicals. With advantages of owning our large scale capital-owned factories, we attribute our success to our enduring efforts to supply quality and cost-effective chemicals to our customers. Zhengzhou Jielin always insist on the principle of " The quality of survival, the credibility to promote the development." In the past 20 years, by right of perfect quality and sevice, our products have been sold well in more than 40 countries