While most chemical fiber companies are still competing on scale in the chip spinning segment, Hengyi Petrochemical has used a 4.87 billion yuan order to shift the battle to the downstream of the nylon industry chain. According to the company announcement, its subsidiaries Guangxi Hengyi New Materials and Hangzhou Yizhijin New Materials will jointly build a 400,000-ton annual PA6 melt direct spinning project with an 18-month construction period. This number represents not just a simple capacity addition, but a redefinition of value distribution across the industry chain.
Background
From a capacity perspective, Guangxi Hengyi New Materials currently operates a 600,000-ton annual PA6 chip production line, which will maintain full-load operation in 2026. This means the new 400,000-ton melt direct spinning capacity will have a stable internal raw material supply. This 'raw material plus spinning' vertical integration model is rare in the nylon industry, as most companies either produce chips alone or rely on purchased chips for spinning, leaving them vulnerable to cost and supply chain fluctuations.
Equally noteworthy is the choice of technology route. Hengyi will use its self-developed PA6 melt direct spinning process, which, compared with traditional batch chip spinning, reduces water consumption by about 80% and electricity consumption by 30%, while eliminating intermediate steps such as chip packaging, warehousing, and transportation. For buyers, this means a lower carbon footprint and more stable quality; for factories, it means shorter processes and lower waste treatment costs. As dual-carbon policies tighten, this technological advantage is becoming a tangible competitive barrier.
Industry Impact
The project's location in Guangxi and Hangzhou is not arbitrary. Guangxi serves as a bridgehead to ASEAN, offering abundant resources and export logistics advantages, while Hangzhou leverages the developed textile industry cluster in the Yangtze River Delta to stay close to end markets. This dual-base layout balances raw material proximity and market proximity while diversifying policy and logistics risks in any single region. For upstream caprolactam suppliers, Hengyi's new 400,000-ton PA6 demand will reshape regional supply-demand dynamics, potentially pushing caprolactam prices upward.
For the industry, Hengyi's move sends a clear signal: competition in the nylon chain is shifting from single-segment capacity expansion to entire-chain efficiency. Melt direct spinning technology is not exclusive to Hengyi, but few companies can deeply integrate self-developed processes with captive chip capacity and achieve 400,000-ton scale effects. This means that in the coming years, the cost curve for PA6 spinning will further differentiate, with technology leaders earning excess profits while smaller traditional chip spinning enterprises may face more severe survival pressures.
From the downstream application perspective, PA6 melt direct spinning is mainly used in civil filaments, industrial yarns, and engineering plastics, especially high-end apparel fabrics and automotive lightweight materials. With consumption upgrades and rising penetration of new energy vehicles, annual demand growth in these areas remains at 5%-8%. Hengyi's expansion targets this structural growth window. For buyers, more PA6 suppliers will be available in the future, but suppliers with genuine melt direct spinning capabilities and stable capacity remain scarce resources.