The profit center of the chemical fiber industry is shifting from selling chips to selling fibers. Hengyi Petrochemical's latest announcement reveals a 4.87 billion yuan investment in a 400,000-ton annual PA6 melt direct spinning project, to be built through two subsidiaries, Guangxi Hengyi New Materials and Hangzhou Yizhijin New Materials, with an 18-month construction period. The significance lies not in the capacity number itself, but in the official opening of integrated competition in the nylon value chain.
Background
Hengyi already holds a strong position in PA6 chips: its Guangxi subsidiary operates 600,000 tons of annual chip capacity, running at full load in 2026. The new 400,000-ton melt direct spinning capacity will absorb part of its self-produced chips, naturally extending operations from raw materials to spinning. This is not simple capacity expansion but vertical integration of the value chain—chips will no longer be sold as end products but converted into higher-value fibers.
The project spans Guangxi New Materials Industrial Park and Yizhijin New Materials Industrial Park, forming a north-south layout. Guangxi offers proximity to raw materials and energy cost advantages, while Hangzhou is close to downstream weaving and consumer markets. This dual-location strategy aims to lower production costs while quickly responding to client demands. The 18-month timeline signals urgency to secure a position before the nylon track becomes saturated.
Industry Impact
Compared with traditional chip spinning, melt direct spinning eliminates intermediate steps such as chip packaging, warehousing, and transportation. Hengyi's disclosed data show that its self-developed process can reduce water consumption by about 80% and electricity consumption by 30%, while significantly cutting pollutant emissions. Behind these numbers lies a reshaped cost structure—while peers struggle with chip price fluctuations, integrated players convert intermediate losses into profit margins.
For buyers, this means integrated suppliers will demonstrate stronger price resilience. Traditional chip spinning companies are constrained by chip procurement costs and often passively follow price hikes during raw material upturns. In contrast, melt direct spinning companies have flatter cost curves and offer more stable quotations. Especially as global textile supply chains pursue green certifications, the significant reductions in water and electricity consumption provide downstream brand customers with more persuasive carbon footprint data.
From an industry landscape perspective, Hengyi's move is not isolated. Leading chemical fiber companies have increasingly focused on high-performance fibers, with PA6 serving as a dual raw material for engineering plastics and civilian filaments, becoming a core track for new growth. This investment will further widen the technology gap between leaders and regional small factories—the latter, if unable to adopt melt direct spinning, will be squeezed into low-end markets and face order losses.
Notably, the project is financed through a combination of internal funds and external self-raised capital, indicating strong management confidence in profitability. In an industry generally facing overcapacity, the willingness to bet heavily on a specific process route reflects a structural judgment about downstream nylon demand: high-end fabrics, automotive lightweighting, and electronics require continuously improving quality and supply stability, which integrated capacity is designed to meet.