While many enterprises are still struggling to digest chip capacity, Hengyi Petrochemical has shifted the competitive focus to the next node of the nylon value chain with a 4.87 billion yuan investment announcement. In August 2026, the polyester and nylon dual-track leader revealed plans to build a 400,000-tonne PA6 melt direct spinning project through its subsidiaries Guangxi Hengyi New Materials and Hangzhou Yizhijin New Materials. This figure underscores the gap between chip oversupply and the high added value of spinning, signaling a clear move by leading companies to redraw the competitive map.
Background
From a capacity perspective, Hengyi's move is well-founded. Its subsidiary Guangxi Hengyi New Materials currently operates a 600,000-tonne PA6 chip production facility, which has been running at full capacity throughout 2026. This means the company already has ample upstream supply, and the new melt direct spinning project is designed to convert this raw material advantage into market share in downstream filament products. The project has a construction period of 18 months, financed through a mix of internal funds and external borrowing, with locations in the Guangxi New Materials Industrial Park and the Yizhijin New Materials Industrial Park.
Notably, the technology route differs sharply from conventional methods. Hengyi's self-developed PA6 melt direct spinning eliminates intermediate steps such as chip packaging, warehousing, and transportation, reducing water consumption by about 80% and electricity use by 30%. For chemical fiber plants, these figures are not just cost savings; they also lower the regulatory and operational barriers for new capacity in an era of tightening environmental oversight.
From an industry perspective, the chemical fiber sector is accelerating its shift toward high-end and green low-carbon development. PA6, as a high-performance fiber material, has become a core track for leading enterprises. Hengyi's move essentially reinforces its 'raw material plus spinning' integration model, aiming to build cost barriers by compressing intermediate links while leveraging low-carbon processes to meet downstream brands' sustainability preferences.
Industry Impact
For buyers, the addition of 400,000 tonnes of spinning capacity will significantly reshape the supply-demand balance of PA6 fibers over the next two years. Currently, domestic PA6 chip supply is relatively ample, but there remains a structural gap in high-quality filament products, especially those produced via melt direct spinning, which offer better uniformity and dyeing performance than traditional chip spinning. Hengyi's project is expected to fill this gap, providing downstream weaving and apparel companies with a more stable source of premium raw materials.
For the industry as a whole, this investment sends a signal more telling than the numbers themselves. When leading companies begin replacing traditional processes with proprietary technology, small and medium chip producers face not only erosion of market share but also the possibility of technological obsolescence. The energy-saving advantages of melt direct spinning mean that under policies such as dual energy consumption controls and carbon tariffs, outdated capacity will be phased out faster, and industry concentration is likely to rise.
From a regional economic perspective, the project sites in Guangxi and Hangzhou will benefit respectively from upstream raw material proximity and downstream market responsiveness. Guangxi, as a bridgehead to ASEAN, can radiate its new material park capacity to Southeast Asian textile and apparel supply chains. Meanwhile, Hangzhou Yizhijin, located in East China, is close to high-end fabric and apparel brands. This 'raw materials in the southwest, markets in the east' layout helps diversify risks and stay close to end demand.