The price balance of polyester staple fiber balls remained unchanged at the end of August 2026. On August 29, Henan Kaijie Water Treatment Co. listed quotes for three specifications of ordinary fiber balls—30mm, 40mm, and 50mm diameter—all at 15,500 RMB per ton. This seemingly flat number, after weeks of stability, has become a key indicator for observing supply-demand dynamics in the water treatment filter media industry.
Background
Fiber balls are not conventional textile fabrics but filter media made from polyester staple fiber through a knotting process, widely used in suspended solids filtration in power plants, petrochemicals, and municipal wastewater. The three specifications quoted by Henan Kaijie cover different filtration levels, from fine to coarse, and the uniform price suggests matured cost control across specifications.
Notably, the 15,500 RMB/ton quote is not an isolated figure. Upstream, PTA and MEG price trends directly influence raw material costs; downstream, the pace of water treatment project tenders and the enforcement of environmental policies determine purchase intentions. At this moment, a delicate balance has formed, preventing prices from jumping due to cost push or sliding due to weak demand.
Industry Impact
For the polyester staple fiber value chain, the stable quote for fiber balls signals rigid demand from the industrial filtration sector. Unlike apparel-grade staple fiber, which fluctuates with seasons and fashion trends, water treatment filter media are consumables with relatively fixed replacement cycles, providing polyester staple fiber producers with a stable sales channel. When textile apparel demand wavers, this industrial application can act as a buffer.
From a regional industry cluster perspective, Henan Kaijie, located in central China, reflects the differentiated competitiveness of non-coastal textile clusters. Compared with clusters like Keqiao and Shengze, which focus on fabrics, Henan's layout in water treatment filter media leans toward industrial supporting products. Differences in raw material procurement radius and logistics costs make its quotes a meaningful reference for similar products.
For buyers, a price plateau is often a window to adjust supply chains. The current stability of fiber ball quotes implies low short-term cost volatility, suitable for locking in long-term orders or expanding inventory. However, one should remain cautious: if upstream raw material prices shift at the end of Q3, this calm could be quickly disrupted.
For foreign trade firms, fiber balls as environmental consumables have stable demand in Southeast Asia and the Middle East. Stable quotes simplify export pricing, but attention should be paid to RMB exchange rate fluctuations and shipping cost changes, which sometimes impact actual transaction prices more than the product price itself.