Fujian Lianjiang Hengxin Green Technology’s production line for the melt depolymerization of waste nylon products such as construction waste, fishing nets, and sliced materials, to produce recycled polyamide 6 slices

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Textile giants are investing in industrial-grade chemical recycling PA6 projects. On March 5, 2025, the Fuzhou Environmental Protection Bureau issued a public notice regarding its intention to approve the environmental impact assessment documents for these construction projects. Project Name: CR Project of Fujian Hengxin Green Technology Co., Ltd.
Construction Location: Lianjiang County
Constructor: Fujian Hengxin Green Technology Co., Ltd.
The project is located in the Kemeng Economic Development Zone in Lianjiang, Fuzhou. It involves the construction of a production line for the melt depolymerization of used nylon products such as cut fish nets, in order to produce recycled PA6 chips, with an annual output of 7,000 tons of fully matte recycled PA6 chips. The CR project of Fujian Hengxin Green Technology Co., Ltd., which is part of Hengshen Group, relies on the nylon chemical recycling technology developed independently by Hengshen Group to establish a closed-loop recycling system for recycled nylon. Building on the pilot tests that have already been completed by the group, this project is being implemented on a commercial scale in the Shenyuan Integrated Industrial Park. This project aims to provide partners with comprehensive solutions for the recycling of nylon, enabling the efficient processing of their waste scraps and used textiles. The recycled nylon products maintain a quality comparable to that of virgin nylon, At the same time featuring an excellent carbon footprint. They also offer a wide range of customized functional options to meet customer needs. The first phase of the project, which is expected to come online in the first quarter of 2026, will have a production capacity of 7,000 tons of chemically recycled nylon, filling a gap in China’s field of T2T recycling for nylon. With a total investment of 379 million yuan, the project’s eventual production capacity is set to reach 100,000 tons, reflecting Hengshen Group’s strong commitment to sustainable development. On January 6, 2025, the signing ceremony for the strategic cooperation agreement between Hengshen Group and Toray Group was held at Hengshen Center. This signing is an important step for Hengshen Group and Toray Group to focus on chemical recycling projects and carry out in-depth cooperation. Leveraging Hengshen Group’s independently developed chemical regeneration technology for nylon as the core, the two parties will work together to establish a closed-loop recycling system for regenerated nylon, providing comprehensive solutions for the recycling of used textiles and plastic waste. They will also continue to explore new application areas for chemically regenerated products, thereby strengthening their strategic cooperation. Founded in 1984, Hengshen Group has adhered to its original principle of \"focusing on one business for three generations.\" Starting out with just a nylon rope, it has grown into a large-scale modern multinational enterprise group that operates in the fields of chemical fibers, chemicals, and new materials. It is the world’s largest producer of caprolactam. Hengshen Group has not only achieved efficient utilization of raw materials through depolymerization technology, making breakthroughs in the field of chemical regeneration, but is also steadily establishing a comprehensive hierarchical recycling system to enable a more low-carbon recycling process via physical regeneration methods. In addition to recycled products, Hengshen Group has also achieved significant results in various areas of sustainable products, including low-carbon, bio-based, direct-coloring, and biodegradable products. The group’s independently developed series of low-carbon products such as EcoLactam®, which includes lactam, polyamides, and nylon yarns, can have a carbon footprint as low as 3.3 CO2-eq/kg, ranking among the lowest in the world. By applying proprietary process technologies, this product can significantly reduce greenhouse gas emissions ； Bio-based products are made from renewable biological substrates through biological fermentation, purification, polymerization, and spinning, thereby significantly reducing the use of petroleum-based materials ； In contrast, products with in-situ coloring use in-situ polymerization technology to enable color molecules to form strong chemical bonds with the melt during the polymer production process. No dyeing is required throughout the entire process, from sheet polymerization to garment manufacturing, which significantly reduces wastewater emissions across the entire supply chain and helps save water and energy ； Furthermore, degradable products utilize the method of \"biological anaerobic degradation\"; by taking advantage of a special anaerobic soil environment, waste textiles containing degradation additives can be safely and rapidly converted into harmless substances such as water and inorganic salts. The degradation process occurs only within the soil environment, preventing premature degradation during use.