Wkai Bottle Grade Virgin PET Resin Chips Pellets Granules
Wankai New Materials Co., Ltd. (shortened as "Wankai New Materials", stock code: 301216) is a leading Chinese enterprise specializing in the research, production, and sales of food-grade polyester materials, focusing on innovation and manufacturing of bottle-grade PET (polyethylene terephthalate). Founded in 2008 and listed on the Shenzhen Stock Exchange's ChiNext board in March 2022, the company is headquartered in Haining, Zhejiang, with a major production base in Fuling, Chongqing. Its total annual capacity reaches 3 million tons, ranking among the world’s top producers.
As a representative of "Made in China" within the bottle-grade PET industry, Wankai’s products are widely used in packaging for drinking water, carbonated beverages, hot-fill drinks, cooking oil, alcoholic beverages, and medical applications. The company serves globally recognized brands such as Nongfu Spring, Coca-Cola, and Yibao, with products exported to over 100 countries and regions worldwide.
1. Core Competitive Advantages
- World-Leading Production Scale: With two major production bases—1.2 million tons in Haining and 1.8 million tons in Chongqing—the company achieves a total capacity of 3 million tons/year, making it one of the few enterprises globally capable of large-scale, stable supply.
- Independent R&D and Core Technologies: Masters multiple industry-leading technologies including IPA separate esterification, low-temperature polymerization, and composite energy-saving insulation, all with independent intellectual property rights, enabling mass production of high-value-added products.
- Green and Intelligent Manufacturing Benchmark: The Chongqing Wankai project has been recognized as a National Green Factory, National 5G Factory, and Chongqing Intelligent Factory, achieving digital and intelligent production management.
- Global Market Expansion: Overseas revenue accounted for 36.49% in the first half of 2024. The company has established a warehouse in Indonesia and plans to replicate its model in emerging markets such as Central Asia, South America, and Africa to enhance global service capabilities.
- Integrated Industrial Chain Extension: Through the acquisition of Sichuan Zhengdakai, Wankai has built an integrated "natural gas → ethylene glycol → polyester" industrial chain, ensuring raw material supply stability and improving cost control.
2. Food-Grade PET Product Series
Wankai’s bottle-grade PET chips are known for their high transparency, low acetaldehyde content, strong barrier properties, and excellent processability. They strictly comply with China’s GB/T17931-2018 standard and have passed international food contact material certifications such as FDA and EU, ensuring safety, non-toxicity, and consistent quality.
1. WK-881 Carbonated Beverage Bottle-Grade PET
- Intrinsic Viscosity: 0.87 IV
- Main Applications: Carbonated soft drink bottles, sports drink bottles, carbonated beverage packaging
- Key Advantages:
- High clarity and excellent gas barrier performance, extending shelf life
- Stable processing on high-speed blow molding lines
- Meets food contact safety standards, preserving beverage taste purity
2. WK-801 Water Bottle / Sheet-Grade PET
- Intrinsic Viscosity: 0.80 IV
- Main Applications: Mineral water bottles, distilled water bottles, PET sheets, wide-mouth containers, spray bottles
- Key Advantages:
- High transparency and gloss, resulting in crystal-clear finished products
- Resistant to hydrolysis, acids, and alkalis, suitable for diverse packaging applications
- Melting point of approximately 243°C, compatible with injection molding and extrusion processes
3. Hot-Fill Dedicated PET
- Intrinsic Viscosity: ~0.79–0.81 IV (inferred from industry standards)
- Main Applications: Hot-filled tea, juice, and functional beverages
- Key Advantages:
- Fast crystallization and low thermal shrinkage
- Uniform wall thickness and optimized stress distribution
- Specifically engineered for hot-fill processes with strong heat resistance
4. High-Gloss PET (Super Glossy PET)
- Intrinsic Viscosity: 0.65–0.68 IV
- Main Applications: Premium cosmetic packaging, optical components, decorative materials
- Key Advantages:
- Exceptional gloss and transparency, offering a glass-like appearance
- Suitable for injection molding, blow molding, and sheet forming
- Meets stringent visual requirements for high-end packaging
5. rPET Recycled PET Chips
- Raw Material Source: Reprocessed from cleaned recycled PET bottles
- Main Applications: Eco-friendly packaging bottles, food-grade recycled containers
- Key Advantages:
- Aligns with circular economy trends, reducing carbon footprint
- Utilizes chemical recycling technology to achieve closed-loop "bottle-to-bottle" recycling
- Offers customizable solutions with 25%–100% recycled content to meet sustainability goals
3. Quality & Certification Assurance
The company has established a Polymer New Materials Research Institute, Academician Expert Workstation, and Postdoctoral Research Station, continuously driving technological innovation. As of 2024, it holds 112 authorized patents, with its independently developed low-temperature polymerization process and Polymetrix SSP equipment recognized at the international forefront.
Full production traceability is ensured through certifications including ISO9001, ISO14001, and OHSAS18001. Products meet food contact safety standards from FDA, EU, and GB, qualifying them for global export compliance.
