Hengli Petrochemical Co.,Ltd. engages in petrochemical industry in China and internationally. It operates through Petrochemical Business and Polyester Fiber Business segments. The company offers oil refining products, chemical products, purified terephthalic acid, polyester chips, polyester fibers; and engineering plastics, functional films, and biodegradable materials. It provides civilian and industrial polyester filament; and polyester filament. In addition, the company engages in wholesale and retail activities; operates in transportation industry; and industrial investment activities, as well as other financial services. It serves refining, aromatics, olefins, basic chemicals, fine chemicals, and various downstream application areas. Further, it is involved in sales of petroleum, synthetic materials, rubber, wholesale of hardware, metal chains, metal materials, metal mines, textiles and raw materials, coal, and non-metallic minerals; business management consulting; leasing of non-residential real estate; domestic trade agency; and offshore trade operations. The company was formerly known as Dalian Rubber and Plastic Machinery Co., Ltd and changed its name to Hengli Petrochemical Co.,Ltd. in May 2016. The company was founded in 1999 and is based in Dalian, China.