While the chemical fiber industry debates overcapacity and shrinking margins, Hengyi Petrochemical has answered with a 4.87 billion yuan investment: seek profit downstream and cost from processes. The announcement reveals the polyester and nylon dual-track leader will add 400,000 tonnes of annual PA6 melt direct spinning capacity, located in Guangxi and Hangzhou parks, with an 18-month construction period. For buyers, this is not just a change in capacity figures—it could reshape price expectations for nylon fabrics over the next two years.
Background
The project will be implemented by two subsidiaries, Guangxi Hengyi New Materials and Hangzhou Yizhijin New Materials, with funding from internal and external sources. Notably, the Guangxi base currently operates a 600,000-tonne PA6 chip plant at full capacity in 2026, providing ample feedstock for the new melt direct spinning line. In other words, the new capacity is not starting from scratch but extends existing chip production, and this vertical integration of 'feedstock plus spinning' effectively hedges cost risks from chip price fluctuations.
The technology route is another key point. Hengyi's self-developed PA6 melt direct spinning process cuts water use by about 80% and electricity by 30% compared with traditional batch chip spinning, while eliminating chip packaging, warehousing, and transfer steps. What does this mean? For factories, energy costs account for a significant share of nylon spinning costs, and these improvements directly translate into gross margin recovery. Moreover, eliminating intermediate steps shortens production cycles, enabling faster response to downstream orders—critical in fast fashion and functional fabrics.
Industry Impact
From a chain perspective, Hengyi's move aims to fill a key gap in the nylon chain. Previously, its business focused on PA6 chip feedstock with relatively low added value; after the project, the company will directly enter spinning, extending products from feedstock to nylon filament, then covering fabrics and apparel. The industry significance: when chip prices fall, spinning profits act as a buffer; when demand recovers, integrated firms secure feedstock first, creating competitive advantages over single-segment players.
The regional impact is also notable. The dual-base layout in Guangxi and Hangzhou—one near upstream materials or cost advantages, the other close to eastern consumer markets—helps reduce logistics costs and respond quickly to customers. For buyers in traditional fabric hubs like Shengze and Keqiao, the new melt direct spinning capacity means more diverse supply channels for nylon fabrics and potentially greater price negotiation room.
More broadly, this investment signals a clear direction in chemical fiber upgrading. Under carbon neutrality goals, traditional chip spinning faces mounting environmental pressure, and melt direct spinning, with its significant energy and water savings, is becoming the preferred technical route for leading firms. Hengyi's move is not isolated; industry data shows several chemical fiber leaders have shifted capital expenditure toward green processes, indicating a structural transition in PA6 production technology.