While the chemical fiber industry frets over chip price volatility, Hengyi Petrochemical has refocused competition on cost structure with a 4.87 billion yuan investment announcement. The 400,000-ton PA6 melt direct spinning project, located in Guangxi and Hangzhou, has an 18-month construction period. This is not just capacity expansion but a technological substitution for traditional batch spinning—cutting water use by 80% and electricity by 30%, while eliminating intermediate steps. For buyers and exporters, the implication is clear: the cost curve for nylon fabrics is about to be redrawn.
Technological Substitution: Reshaping Cost Logic
Traditional batch chip spinning involves repeated energy consumption from polymerization to spinning, including cooling, pelletizing, packaging, transport, and re-melting. Hengyi's self-developed melt direct spinning feeds the melt directly into the spinning process, compressing a lengthy logistics chain into a single pipeline. Industry public data suggests that savings in water, electricity, and labor can account for 15% to 20% of total costs in downstream PA6 spinning. For a 400,000-ton capacity, the cost advantage per ton could reach hundreds of yuan. In today's intense nylon price competition, such a cost gap can shift downstream purchasing flows.
Industrial Belt Synergy: Guangxi and Hangzhou Collaboration
The project sites in Guangxi New Material Industrial Park and Hangzhou Yizhijin Park are not random. Guangxi Hengyi already has 600,000 tons of PA6 chip capacity, running at full load in 2026. Adding 400,000 tons of spinning capacity means raw materials and spinning are locally integrated, saving cross-region transport costs. Hangzhou Yizhijin, located in the Yangtze River Delta textile hub, is close to downstream customers, enabling quick response to fabric orders. This dual-base layout—raw material base plus market front—has direct impacts: Guangxi may upgrade from a chip exporter to a yarn supplier, while Hangzhou consolidates its status as a high-end chemical fiber distribution center. For buyers, this could mean shorter supply chains, reduced lead times, and lower inventory pressure.
Industry Trend: Green and Low-Carbon as a Hard Constraint
The high-end upgrade of the chemical fiber industry is no longer a slogan. Public data from the National Bureau of Statistics shows that energy consumption per unit output in the chemical fiber industry fell about 3% year-on-year in 2025, but gaps remain for carbon peak and neutrality goals. Hengyi's emphasis on the low-carbon attributes of melt direct spinning—reduced pollutants and waste—aligns with policy direction. It is foreseeable that similar technological renovations will be replicated among leading enterprises in the next two years. Small and medium factories still relying on traditional chip spinning will face dual pressure from cost and environmental compliance. Exporters should note that overseas buyers are increasingly scrutinizing supply chain carbon footprints; suppliers using low-carbon processes will be more likely to enter international brand procurement lists.
Market Expectations: Potential Shift in Nylon Supply Pattern
After the 400,000-ton new capacity comes online, domestic PA6 spinning supply will increase significantly. Combined with Hengyi's existing chip capacity, its nylon chain integration will rank among the industry's top. This may put downward pressure on mid-to-low-end nylon filament prices, while high-differentiation products (like fine denier and functional nylon) maintain higher margins due to technical barriers. For downstream fabric mills, this is a signal: price negotiation space for conventional nylon fabrics may expand, but the risk of homogenized competition increases. Buyers are advised to include price adjustment clauses in long-term contracts to cope with price volatility after capacity release.