The competitive focus in the nylon industry chain is shifting from scale expansion to process differentiation. Hengyi Petrochemical's 4.87-billion-yuan investment announcement highlights the energy-saving potential of PA6 direct melt spinning: an 80% reduction in water use and 30% in electricity. These figures imply that under tightening energy consumption controls, mastering direct spinning technology becomes a dual lever for cost and compliance.
Background
The project will be implemented by two subsidiaries, Guangxi Hengyi New Materials and Hangzhou Yizhijin New Materials, with an annual capacity of 400,000 tonnes of PA6 direct melt spun products. The construction period is 18 months, funded by internal and self-raised capital. The sites are located in the Guangxi New Materials Industrial Park and the Yizhijin New Materials Industrial Park, and production will fully adopt Hengyi's proprietary direct melt spinning process, which differs from the conventional batch chip spinning route.
Notably, Guangxi Hengyi New Materials currently operates a 600,000-tonne per annum PA6 chip production facility, running at full capacity in 2026. This means that after the new project is commissioned, raw material chips can be fully self-supplied, eliminating external purchases and transport, further compressing intermediate costs. For buyers, this not only adds capacity but also enhances supply chain stability.
Industry Impact
The core value of direct melt spinning lies in eliminating intermediate steps such as chip packaging, warehousing, and transport, allowing direct conversion from polymer melt to filament. This has two major implications: first, a shortened production process reduces fixed costs per unit; second, lower pollutant emissions align with the green transformation policy in the textile industry. Under external pressures like the Carbon Border Adjustment Mechanism, low-carbon processes will translate into export competitiveness.
From a chain perspective, this move extends Hengyi's business from PA6 chip feedstock to downstream spinning, completing a key segment of the nylon value chain. Previously, chip producers had limited bargaining power due to downstream demand fluctuations; now, by directly connecting to weaving and apparel fabric markets through direct spinning, the company can respond more sensitively to end-user demand changes. For peers, this may force traditional chip spinning enterprises to accelerate process upgrades.
The trend toward high-end and green development in the chemical fiber industry is clear, with PA6 and other high-performance fibers becoming a battleground for leading companies. Hengyi, with dual positions in polyester and nylon, is now deepening its nylon downstream presence to build a closed-loop ecosystem from feedstock to spinning. For buyers, this suggests that future PA6 filament supply channels may become more concentrated, and price formation mechanisms will consequently evolve.