PA6 Melt Direct Spinning Investment of 4.87 Billion: Nylon Industry Chain Integration Enters a New Phase

A 4.87 billion yuan investment in a 400,000-ton PA6 melt direct spinning project is not a simple capacity expansion but a signal that the competitive logic of the nylon industry chain is shifting. While the industry still focuses on chip price games, leading companies are using process innovation to rewrite cost curves, widening the moat of integrated layouts.

Event Background

Two subsidiaries of Hengyi Petrochemical - Guangxi Hengyi New Materials and Hangzhou Yizhijin New Materials - will jointly implement this project. The sites are located in the Guangxi New Materials Industrial Park and the Yizhijin New Materials Industrial Park, with a construction period of 18 months. Funding will come from internal funds and external financing. The project adopts the company's proprietary PA6 melt direct spinning technology. Compared with traditional batch chip spinning, it reduces water consumption by about 80% and electricity consumption by 30%, while eliminating intermediate steps such as chip packaging, warehousing, and transportation, and significantly cutting pollutant and waste emissions.

Notably, Guangxi Hengyi New Materials currently operates a 600,000-ton/year PA6 chip production line, running at full capacity throughout 2026. After the new project comes on stream, the company's business will extend from chip raw materials to downstream spinning, filling a key link in the nylon industry chain. This means Hengyi's scale advantage in PA6 chips will directly translate into cost competitiveness in spinning, potentially releasing further synergies across upstream and downstream.

Industry Impact

For buyers, this project implies a significant increase in PA6 melt direct spinning capacity, which may reshape the supply pattern of nylon filament. The melt direct spinning process eliminates the re-melting step, reducing energy and labor costs while improving product consistency. This could accelerate the phase-out of low-end chip spinning capacity and raise industry concentration. Foreign trade enterprises should note that the cost advantage of integrated leaders will squeeze profit margins of smaller players, and orders may concentrate further toward top firms.

From a technical perspective, melt direct spinning is not new, but its large-scale application has been limited by process matching issues between polymerization and spinning. Hengyi's 400,000-ton project indicates the technology has reached commercial maturity. If the project runs smoothly, it will drive the PA6 industry toward integrated continuous production, which is not only a cost competition but also a low-carbon competitiveness battle - in the context of energy consumption controls and carbon tariffs, the 80% water reduction has strategic value.

For regional industrial clusters, the nylon industry in Guangxi and Hangzhou will gain new growth poles. The Guangxi base, leveraging raw material and energy advantages, is expected to become a nylon supply hub for southwest China and ASEAN markets; the Hangzhou base, closer to downstream weaving and apparel belts, can respond quickly to market demand. This dual-base layout helps diversify risks and enables customized development near customers.

Practical Recommendations

For Buyers - Closely monitor the project's progress and establish supply contacts with Hengyi or its subsidiaries in advance to secure priority access to melt direct spinning products and cost advantages. - Compare the quality stability of melt direct spinning versus chip spinning products, especially in dyeing uniformity and strength indicators, to assess suitability for high-end fabric orders. - Watch the linkage changes in PA6 chip prices; the release of melt direct spinning capacity may substitute chip demand, affecting chip price trends, so adjust procurement strategies timely.

For Foreign Trade Enterprises - Research the acceptance of melt direct spinning products in overseas markets, especially in the EU where environmental requirements are strict; lower water and electricity consumption can be a selling point. - Evaluate whether your supply chain relies too heavily on a single chip supplier; if Hengyi's integrated capacity creates price advantages, consider adjusting the procurement mix to enhance bargaining power. - Monitor changes in nylon filament export data; if new capacity leads to increased exports, prepare for potential trade friction risks and optimize market diversification.