The chemical fiber industry is undergoing a quiet profit migration. While most players still compete on scale in the chip segment, leaders are moving downstream to spinning. Hengyi Petrochemical's latest announcement reveals this trend: a 4.87 billion yuan investment in a 400,000-ton PA6 melt direct spinning project with an 18-month construction period. The significance goes beyond capacity expansion—it's a shift in technology route, replacing traditional chip spinning with melt direct spinning, directly altering cost structures and profit distribution in the nylon chain.
Background
The project will be implemented by two subsidiaries: Guangxi Hengyi New Materials Co., Ltd. and Hangzhou Yizhijin New Materials Co., Ltd., located in Guangxi New Materials Industrial Park and Yizhijin New Materials Industrial Park respectively. Funding comes from internal resources and external financing, indicating confidence in returns. Notably, the Guangxi subsidiary operates a 600,000-ton PA6 chip unit, running at full capacity in 2026. The new project will create a dual-drive pattern of chips and spinning.
Technological breakthrough is the core highlight. Hengyi's self-developed PA6 melt direct spinning reduces water consumption by about 80% and electricity by 30% compared to conventional batch chip spinning. More critically, it eliminates intermediate steps like chip packaging, warehousing, and transport, systematically compressing production costs. For buyers, this cost advantage will eventually reflect in fabric and yarn pricing.
From a chain perspective, this move fills a key gap in Hengyi's nylon layout. Previously, the company focused on PA6 chips, an intermediate product vulnerable to upstream caprolactam price fluctuations. By extending to spinning, the firm can directly connect with weaving and apparel fabric demand, enhancing bargaining power and risk resilience. This vertical integration strategy is being adopted by more leading chemical fiber companies.
Industry Impact
The impact of melt direct spinning is profound. Traditional chip spinning requires pelletizing, packaging, transporting, and remelting, causing significant energy waste. Melt direct spinning integrates polymerization and spinning, saving energy and reducing polymer degradation, resulting in more stable fiber quality. This means downstream weavers may obtain more uniform yarns, reducing breakage and color variation, upgrading fabric quality.
The regional layout in Guangxi and Hangzhou carries strategic implications. Guangxi's proximity to raw materials and Southeast Asian markets reduces logistics costs and facilitates exports to ASEAN; Hangzhou leverages the Yangtze River Delta textile cluster, close to end consumers and R&D resources. The dual-base layout allows flexible capacity allocation to respond to demand fluctuations, providing a buffer for supply chain security.
The transmission of cost advantages deserves attention. An 80% reduction in water and 30% in electricity, under energy caps and carbon tariffs, means significantly lower carbon emissions per unit. For fabric exporters to Europe, carbon footprint becomes a new competitive threshold. Hengyi's process upgrade may prompt more companies to follow, accelerating technology iteration across the PA6 industry. In coming years, melt direct spinning's share will rise, while chip spinning capacity may face elimination pressure.
Practical Recommendations
For Buyers - Monitor supply stability of melt direct spun PA6 yarn: continuous production reduces batch variation; request process control data to verify consistency. - Reassess cost models: direct spinning eliminates intermediate steps, theoretically lowering costs; compare prices between chip spun and direct spun products to negotiate better deals. - Build green supply chains: if customers demand low carbon footprints, prioritize suppliers using direct spinning, which offers advantages in carbon certification.
For Foreign Trade Companies - Leverage the Guangxi base's location: for ASEAN markets, explore cooperation with firms like Hengyi to shorten lead times and reduce shipping costs. - Adjust product mix: as direct spun PA6 capacity releases, prices for standard nylon yarn may face pressure; shift toward differentiated, functional fabrics to avoid homogeneous competition. - Stay updated on technical certifications: new processes may bring new quality standards; familiarize yourself with relevant testing requirements to avoid order disruptions.
Competition in the chemical fiber industry has shifted from scale to efficiency and greenness. Hengyi's move is both a completion of its own chain and a statement of technological direction. For upstream and downstream players, understanding and adapting to this change will determine market positions over the next five years.