Polyester Staple Fiber Price Divergence: Water Treatment Fiber Holds High, Textile Grade Under Pressure

Textile-grade polyester staple fiber prices have fallen to around 7,250 RMB/ton, while water-treatment fiber balls made from the same material are priced as high as 15,500 RMB/ton. The same industrial chain, different downstream applications, a price gap of over 100%—what does this mean for textile buyers?

Background

According to industry public quotes on June 26, 2026, the polyester staple fiber market showed significant price stratification. Textile-grade polyester staple fiber (1.56dtex*38mm, melt-spun cotton type) was quoted at 7,250-7,330 RMB/ton in Suqian, Jiangsu, supplied by Zhejiang Tianchen Textile Supply Chain Co., Ltd. for the Yida brand. Meanwhile, Henan Kaijie Water Treatment Co., Ltd. quoted fiber balls (ordinary grade, 30-50mm diameter) at a stable 15,500 RMB/ton delivered in Zhengzhou.

Although both are polyester staple fibers, their specifications and uses differ completely. Textile-grade products are mainly cotton-type fibers for spinning and weaving; water-treatment fiber balls undergo special processing for use as filter media in industrial wastewater treatment. The high-value nature of the latter decouples its pricing from textile raw material logic.

Industrial Impact

The persistently low price of textile-grade polyester staple fiber first reflects the overcapacity dilemma in the chemical fiber textile upstream. Melt-spinning capacity has expanded rapidly in recent years, while end-use demand for apparel and home textiles has slowed, leading to high inventories of standard varieties. The 7,250 RMB/ton price is approaching the cash cost line for some companies, putting small and medium producers under loss pressure.

For buyers, the current low-price window can reduce fabric production costs, but two risks must be monitored: first, prices may fall further, causing inventory impairment; second, low prices may trigger production cuts or shifts, threatening future supply stability. The high price of water-treatment fiber balls suggests that differentiated, high-value chemical fiber products still have profit margins, which may guide some capacity toward specialty uses.

Regionally, Suqian in Jiangsu, as Yida's main production base, serves as a benchmark for market pricing. The water-treatment fiber ball price in Zhengzhou, Henan, reflects robust demand from the environmental protection sector—as industrial wastewater discharge standards tighten, demand for filter media grows rigidly, supporting high prices.

Practical Recommendations

For Buyers - Current textile-grade polyester staple fiber prices are low; consider phased locking of prices, but avoid bulk hoarding to guard against further declines. - Monitor operating rates of major suppliers like Yida; if production cuts expand, prices may rebound, requiring advance stockpiling. - The price gap between water-treatment fiber balls and textile-grade products is huge; if cross-sector procurement is needed, evaluate supplier qualifications and product standards separately—do not mix.

For Foreign Trade Companies - Export quotes for polyester staple fiber can reference the domestic benchmark of 7,250 RMB/ton; after adding freight and tariffs, they remain competitive in Southeast Asia, but watch for anti-dumping risks locally. - Water-treatment fiber balls offer lucrative export margins; capable traders are advised to target overseas environmental engineering clients to develop high-value categories. - Monitor exchange rate impacts on imported raw material costs; if the RMB depreciates, imported polyester staple fiber becomes less cost-advantageous, further pressuring domestic procurement demand.