Hainan Yisheng Petrochemical Co., Ltd. was established in May 2010 within the Yangpu Economic Development Zone in Danzhou City. With a registered capital of 4.58 billion RMB, the company employs over 650 people and occupies a site spanning approximately 1,400 mu (about 93 hectares). It possesses an annual production capacity of 4.6 million tons of purified terephthalic acid (PTA) and 3.8 million tons of PET bottle-grade polyester chips. The company’s core offerings include the "Yisheng" brand YS series of PET resins—comprising virgin bottle-grade PET, amorphous PET, and recycled PET (rPET)—which meet food-contact safety standards. These products are widely used in packaging for beverages, edible oils, and grains, as well as in thermoformed sheets. As a key enterprise within the Yangpu petrochemical industrial chain, the company exports a significant portion of its output to overseas markets. Ascent Group supplies the complete product line of Hainan Yisheng Petrochemical Co., Ltd.