While most chemical fiber companies are still competing on chip capacity, Hengyi Petrochemical has placed its bet further downstream on spinning. A 4.87 billion yuan investment with an annual capacity of 400,000 tonnes is not just about expansion; it's a recalibration of profit distribution along the nylon value chain.
Event Background
The investment will be implemented through two subsidiaries: Guangxi Hengyi New Materials Co., Ltd. and Hangzhou Yizhijin New Materials Co., Ltd., located in the Guangxi New Materials Industrial Park and the Yizhijin New Materials Industrial Park respectively. Public information shows the project has an 18-month construction period, funded by internal capital and external financing. Notably, the Guangxi base already operates 600,000 tonnes of annual PA6 chip capacity, which ran at full utilization throughout 2026, providing a solid feedstock foundation for the new 400,000-tonne melt direct spinning line.
From a technical standpoint, the project adopts Hengyi's self-developed PA6 melt direct spinning process, a generational leap from the traditional batch chip spinning method. The proprietary process delivers dramatic resource savings: water consumption drops by 80%, electricity by 30%, and intermediate steps like chip packaging, warehousing, and transport are eliminated. This translates to significantly lower unit costs, especially when energy prices are volatile—a direct competitive edge.
For buyers, Hengyi's move is a signal worth watching. The PA6 chip market is mature, with prices largely driven by crude oil and caprolactam costs. Melt direct spinning products arrive in filament form, bypassing re-melting, which could shorten lead times and reduce quality loss. This may alter downstream weaving mills' procurement patterns—shifting from buying chips to buying spun yarn, with implications for inventory management and capital utilization.
Industry Impact
From a value chain perspective, the project fills a critical gap in Hengyi's nylon portfolio. Previously, the company focused on PA6 chips—a bulk commodity with limited added value. Spinning, however, directly connects to fabric and garment demand, offering higher margins. By linking chip and spinning capacity through melt direct spinning, the company creates a closed loop from caprolactam to chips to filament, providing greater flexibility in volatile markets.
More broadly, this investment reflects a shift in the chemical fiber industry's competitive focus. Over the past decade, expansion centered on polyester capacity races. Now, high-performance fibers like PA6 are becoming the core track for leading companies to build new growth curves. As a polyester-nylon dual leader, Hengyi's downstream move is essentially a bet on long-term demand for high-end fabrics and industrial yarns. For weaving mills specializing in differentiated products, upstream technological upgrades mean more stable quality and lower energy costs, but they also risk intensifying overcapacity in mid-to-low-end spinning segments.
The dual-site selection in Guangxi and Hangzhou is strategic. Guangxi's proximity to raw materials and ASEAN markets lowers logistics costs; Hangzhou's closeness to downstream textile clusters enables rapid response. This dual-base layout diversifies risk and balances domestic and export needs, demonstrating deep consideration of regional industrial belt synergies.
An 18-month construction timeline is relatively fast for a large petrochemical project, requiring mature engineering and commissioning expertise. Once operational, domestic PA6 melt direct spinning capacity will see a concentrated release around 2028, potentially reshaping market dynamics—where cost leaders and technology holders will dominate.