Polyester Staple Fiber Prices Diverge: Water Treatment Fiber Remains High, Spinning Grade Under Pressure

In early July 2026, polyester staple fiber (PSF) price lists revealed a clear divide: water treatment fiber balls were quoted at 15,500 RMB/ton, while spinning-grade PSF traded between 6,940 and 7,320 RMB/ton. The over 8,000 RMB gap reflects fundamentally different supply-demand dynamics.

Price Divergence: Specialty vs. Commodity Fibers

Water treatment fiber balls (ordinary grade, 30-50mm diameter) from Henan Kaijie Water Treatment Co. held steady at 15,500 RMB/ton since early 2026. This stability stems from rigid demand in industrial wastewater purification and circulating water treatment, driven by environmental policies rather than general chemical fiber price fluctuations.

In contrast, spinning-grade PSF showed a 380 RMB/ton spread. Zhonglei brand (Huzhou, Zhejiang) quoted 7,320 RMB/ton, Xintuo (Xuzhou, Jiangsu) 7,200, Yida (Suqian, Jiangsu) 7,150, and Huahong (Wuxi, Jiangsu) 6,940. Prices declined from north to south and east to west, correlating with local capacity, logistics costs, and downstream clusters.

Regional Industry Belts: Price Gradient within the Yangtze River Delta

The quotes map the internal gradient of the Yangtze River Delta PSF industry. Huzhou, a textile hub in Zhejiang, had the highest price (7,320 RMB/ton), reflecting demand for high-quality yarn and proximity to customers. Xuzhou and Suqian in northern Jiangsu, which have absorbed relocated chemical fiber capacity, offered mid-range prices (7,150-7,200).

Huahong's 6,940 RMB/ton was the lowest. Wuxi, a traditional textile base, faces intense competition among concentrated PSF capacity, while downstream weaving mills are in the off-season, reducing procurement willingness. This gradient means large buyers can save nearly 400 RMB/ton by sourcing from Wuxi instead of Huzhou, but must weigh logistics time and quality consistency.

Upstream-Downstream Transmission: Why Spinning-Grade PSF Is Under Pressure

The weakness in spinning-grade PSF stems from dual pressure from raw materials and demand. In H1 2026, PTA and ethylene glycol prices remained low, undermining cost support. Meanwhile, the downstream yarn market entered the traditional July off-season, with weaving mills ordering only for immediate needs, lacking stockpiling appetite.

More critically, the PSF industry's overcapacity remains unresolved. New melt-direct spinning capacity added over the past two years is still being absorbed, while end-demand for apparel and home textiles exports slows. Producers, especially large ones like Huahong, resort to aggressive price cuts to secure orders.

Practical Recommendations

For Buyers - Current PSF prices are at year-to-date lows. If cash flow permits, consider building safety stock in late July to August to prepare for potential price rebounds in the September peak season. - When sourcing across regions, factor in freight (approx. 80 RMB/ton from Wuxi to Huzhou), payment terms, and quality testing costs before comparing ex-factory prices.

For Foreign Trade Companies - The high price of water treatment fiber balls offers export margin, but monitor environmental policy changes and anti-dumping risks in key markets like Southeast Asia and the Middle East. - For spinning-grade PSF exports, closely track domestic futures and PTA trends. Consider floating price contracts with downstream clients to lock in processing margins.