Editor's Note

Challenge testing is an important means to verify the safety and performance of recycled polyester products. Many countries and regions require that food contact materials must pass challenge testing to ensure their safety. Products that pass the test can legally enter the market.

As the first company in China to complete the challenging experiment of 50% recycled food-grade rPET, China Resources Chemical's technological breakthroughs and market expansion in the field of recycled materials are expected to bring new growth points to the company.

On April 15, at Chinaplas 2025, China Resources Chemical stated that the rPET food-grade recycled polyester product containing 50% recycled materials has completed challenging experiments in accordance with relevant requirements. In the future, China Resources Chemical Materials will continue to strengthen the research and development of high-proportion recycled PET reuse projects, and continue to add a green background to high-quality development.

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Overview of China Resources Chemical

 China Resources Chemical was established in 2003 and listed on the Shenzhen Stock Exchange's Growth Enterprise Market in October 2021 (stock code: 301090). The company has two major production bases in Changzhou and Zhuhai, with an overall annual polyester production capacity of 2.1 million tons. The company's main products include polyester bottle flakes (PET), special polyester PETG, etc., which are widely used in beverage packaging, food packaging, medical and pharmaceutical packaging and other fields. In August 2024, China Resources Chemical was designated by the Zhengzhou Commodity Exchange as a bottle flake futures delivery warehouse and bottle flake futures delivery brand and inspection-free brand. This shows that the company's market recognition and product quality in the industry have been recognized by authoritative organizations.

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Bottle-grade polyester chips with 50% recycled content

China Resources Chemical is developing bottle-grade polyester chips (rPET) with 50% recycled content and has made phased progress. The company has previously successfully developed rPET products with 25% recycled content and obtained the global green and low-carbon certification of Coca-Cola Company, becoming the first chemical rPET production line in China certified by Coca-Cola. "Challenge Test" is an experimental method used to verify the performance and safety of materials, products or processes under specific conditions. In the field of recycled polyester (rPET), challenge tests are usually used to evaluate whether food-grade recycled polyester materials meet food safety standards and regulatory requirements. In recent years, China Resources Chemical has actively responded to the global initiative to recycle and reuse plastic packaging, using recycled polyester bottles as raw materials and, through technological innovation, allowing waste plastic products that damage the environment to be recycled again, becoming the first company in China to achieve mass production of recycled polyester chips (rPET).

In the field of mid-to-high-end cosmetic packaging, China Resources Chemical has developed the domestically produced PETG CR-5531 product through independent research and development, breaking the domestic gap in related materials in one fell swoop, and relying on its stable and excellent quality, it has been successfully applied in batches in domestic packaging material factories and well-known domestic brands. At the same time, with its unique processing performance and excellent cost-effectiveness, CR-5531 has passed the high-speed printing test of more than 300mm/s and is widely used by 3D printing customers.