Zhenjiang Zhengdan Chemical Industry Co.,Ltd was established in Jan., 2007. Invested by Hexing (Hong Kong) enterprise Co., Ltd., Zhenjiang Zhengdan Chemical Industry Co., Ltd. is a hi-tech enterprise specialized in the manufacturing of fine chemicals and development and research of hi-tech products. Located in International Chemical Park in new district, Zhenjiang city, Zhengdan is a skill-intensive, technology-led and export-oriented research, manufacture and trade enterprise, with 120,000sqm of lands and over 200 employees, 64 of them are technicians. As an ISO 9001:2000 and ISO 14001: 2004 approved enterprise, Zhengdan has become a cooperative base of Jiangsu University of Science and Technology for the combination of research, production and university.

The company mainly produce trimellitic anhydride (TMA) and p-diethylbenzene (PDEB) which have both been appraised as High- and New-tech Product in Jiangsu province:

TMA is widely used in polyester resin for powder coating, polyimide resin in insulating paint, soluble polyester resin, top-grade plasticizer, and curing agent of epoxy resin and surfactants etc. Its production method (continuous oxidization method) got Chinese patent of invention, patent of utility model and design patent. Now we are the world's biggest manufacturer of TMA, with the annual output of 70,000 tons.

P-diethylbenzene (PDEB) is mainly used as strippant for dimethylbenzene, and it is supplied to, on a long-term basis, to Yangzi Petrochemical, SINOPEC Shanghai Petrochemical, Jinling Petrochemistry Company, CNOOC Refinery Co., Ltd. ?With annual production capacity of 10,000 tons, we are now the world's largest manufacturer of p-diethylbenzene (PDEB).

Zhengdan takes "depending on technologies for further development, to be leading enterprise, stressing credit" as policy. Relying on leading technologies, matured production experiences, complete sales network and modern management system, Zhengdan is striving to provide customer all over the world with quality product and excellent service!