The value center of the nylon industry chain is shifting downstream, and Hengyi Petrochemical's 4.87 billion yuan investment draws a clear line. According to the company announcement, its subsidiaries Guangxi Hengyi New Materials and Hangzhou Yizhijin New Materials will build a 400,000-ton annual PA6 melt direct spinning project with an 18-month construction period, funded by internal and external financing. This scale is heavyweight in the industry and will directly reshape the supply landscape of PA6 fiber after completion.
Background
Hengyi's move is not isolated. Its subsidiary Guangxi Hengyi currently operates a 600,000-ton PA6 chip plant running at full capacity in 2026, indicating sufficient upstream feedstock. After the new project is completed, the company will for the first time connect the entire chain from caprolactam to PA6 chips to spinning, filling the missing critical link.
Notably, the technology route is self-developed melt direct spinning, which reduces water consumption by about 80% and electricity by 30% compared with the conventional batch chip spinning, while eliminating intermediate steps like packaging, warehousing, and transport. This means lower production costs and reduced emissions, aligning with the industry's green transformation policy.
Regarding site selection, the dual bases in Guangxi and Hangzhou have clear roles. Guangxi offers upstream raw materials and energy advantages, suitable for large-scale chip production; Hangzhou is close to downstream weaving and consumer markets, enabling rapid response to customer needs. This "raw materials + market" layout helps reduce logistics costs and market risks, reflecting regional industrial synergy.
Industry Impact
Hengyi's entry will intensify competition in PA6 fiber, especially in high-end differentiated products. Currently, conventional PA6 fiber has overcapacity, but melt direct spinning is dominated by a few leaders due to high investment and technical barriers. With self-developed technology and upstream self-sufficiency, Hengyi is expected to form dual advantages in cost and quality, pressuring existing chip-spinning enterprises.
For buyers, supply structure changes deserve attention. After completion, Hengyi's PA6 fiber output will surge, possibly triggering price competition, beneficial for downstream costs in the short term. But in the long run, industry concentration will increase bargaining power toward leaders; buyers should diversify suppliers to avoid dependence on a single source.
Meanwhile, the project's green attributes may become a new bargaining chip for exports. European and American markets are tightening carbon footprint requirements; the low-carbon advantage of melt direct spinning helps secure international orders. However, technical certification and carbon accounting systems are not unified; companies should establish data traceability mechanisms in advance to address potential trade barriers.
Practical Recommendations
For Buyers - Monitor the progress of Hengyi's Guangxi and Hangzhou bases, test melt direct spinning PA6 fiber for spinning and weaving suitability, especially dyeing uniformity and strength. - Compare cost-performance of different PA6 fibers, increase inventory during price dips, but assess caprolactam price volatility risks. - Establish backup suppliers to avoid supply disruption, and leverage the competitive window of new capacity to negotiate better terms.
For Exporters - Review carbon footprint regulations in target markets, prioritize low-carbon melt direct spinning raw materials to enhance green value. - Build long-term cooperation with leading suppliers like Hengyi to secure stable low-carbon supply, and jointly conduct carbon footprint certification to boost international customer trust. - Monitor price linkage across the nylon chain, use futures or forward contracts to lock costs and hedge against raw material price fluctuations.
Industry observers note that Hengyi's investment epitomizes nylon industry upgrading, and more similar projects will emerge in the next two years. For small and medium chip-spinning enterprises, the transformation window is closing; they must integrate upstream or differentiate downstream, or risk being marginalized.