Wankai New Materials Co., Ltd., founded in 2008 in Haining, Zhejiang Province, is one of China's leading polyester material manufacturers, specializing in the R&D, production and sales of polyester materials. Committed to providing healthy, safe, environmentally friendly and high-quality polyester products, the company has an annual production capacity of 3 million tonnes of bottle-grade PET resin and was listed on the ChiNext Board of the Shenzhen Stock Exchange on March 29, 2022.

Its main products include bottle-grade PET resin and super bright PET resin, widely used in packaging for bottled water, hot-fill beverages, carbonated drinks, edible oils, alcoholic beverages, films, sheets, industrial yarns, medical products, cosmetics, construction materials and other applications. Major customers include Nongfu Spring, Master Kong, Coca-Cola, C'estbon, Danone, Uni-President and Wahaha, with products exported to over 100 countries and regions, making the company one of the representative manufacturers of China-made bottle-grade PET.

The company has received numerous honors, including China Top 500 Private Manufacturing Enterprises, Top 500 Zhejiang Enterprises, China Top 500 Private Foreign Trade Enterprises, National Green Factory, National Postdoctoral Research Workstation, National Torch Program Enterprise, Zhejiang Future Factory, Zhejiang Famous Export Brand, and Zhejiang AAA Enterprise for Honoring Contracts and Keeping Promises.

Chongqing Wankai New Materials Technology Co., Ltd., founded in 2018 in Fuling District, Chongqing, specializes in the R&D, production and sales of bottle-grade PET resin. With an annual production capacity of 1.8 million tons, it has filled the gap in food-grade PET production capacity in western China.

The project is a landmark achievement of ZHINK Group in supporting the development of the Three Gorges Reservoir Area, participating in the Belt and Road Initiative, and promoting the development of the Yangtze River Economic Belt.

The company has been recognized as a National Green Factory, Chongqing Smart Factory, and one of the Top 100 Enterprises in Chongqing.

Zhejiang Yaoruixing New Materials Co., Ltd., founded in 2025 in Haining, Zhejiang Province, focuses on high-end polyester materials. Backed by its group company Zhink's integrated industrial capabilities, the company is building an intelligent and low-carbon manufacturing base to support the development of green polymer new materials.

Zhejiang Pukai New Materials Co., Ltd., founded in 2017 in Haining, Zhejiang Province, is jointly invested by an affiliate of Wuliangye Group and Wankai New Materials. Specializing in the R&D, production and sales of high-end PET sheets and thermoformed products for food, electronics and medical packaging, the company leverages Wankai's upstream raw material advantages to establish a vertically integrated production system from polyester resin to sheet manufacturing, providing high-quality, customized PET packaging solutions for customers worldwide.

Zhejiang Jkai Plastic Technology Co., Ltd., founded in 2022 in Wucheng District, Jinhua, is a key strategic project of ZHINK Group focusing on the R&D and manufacturing of APET beverage containers. With an existing production capacity of 6 billion APET containers, the company is expanding by an additional 1 billion units in Sichuan.

Equipped with internationally advanced injection molding, blow molding, and biaxial stretching production lines, its products are widely used in premium beverage packaging and food packaging. The company is committed to becoming a leading food packaging materials manufacturing base in the Asia-Pacific region.