Maoming Shihua Dongcheng Chemical Co., Ltd. (hereinafter referred to as "Dongcheng Company") was established in January 2005 with a registered capital of 329 million yuan. Its main business scope is the production and sales of polypropylene, liquefied petroleum gas, special white oil, Ethanolamine, special gas and other chemical products. Dongcheng Company is the main production and operation unit and chemical product base of the company, with 220000 tons/year polypropylene, 500000 tons/year gas separation, 160000 tons/year special white oil, 20000 tons/year Ethanolamine and other modern production units, two oil storage and transportation depots and a gas station. Among them, the polypropylene unit is the largest batch small bulk polypropylene production unit in China, and the processing capacity of the gas separation unit ranks second in the same industry in China. Polypropylene products have been awarded the title of "Top Ten Trusted Brands in National Supervision and Testing Quality", and Dongcheng Company has been recognized as a national high-tech enterprise.