Polyester Staple Fiber Ball Prices Stagnant: Supply-Demand Tensions in Water Treatment Sector Escalate

Prices for fiber balls used in water treatment stabilized at 15,500 RMB/ton in mid-July 2026, with identical quotes across all diameters (30mm, 40mm, 50mm). This rare uniformity signals that suppliers have abandoned differentiated pricing strategies, opting for a unified floor price to cope with shrinking demand.

Supply-Demand Dynamics Behind the Price Stalemate

On the cost side, fiber balls are primarily made from polyester staple fiber, whose production costs have been pushed up by volatile crude oil prices affecting PTA and ethylene glycol. However, the downstream water treatment sector has entered its traditional off-season, with municipal wastewater plants and industrial treatment projects significantly slowing procurement. According to industry data, Q2 purchases of water treatment chemicals and filter media fell by about 8% quarter-on-quarter, leading to inventory buildup for fiber balls.

Suppliers are responding with a 'price-for-volume' strategy—holding prices steady to compete for limited orders rather than cutting prices. This reflects fears that price cuts could trigger a sector-wide price war, further squeezing already thin margins. At the same time, firm upstream polyester staple fiber prices limit the room for fiber ball producers to lower prices.

Regional Industrial Cluster Transmission Effects

Henan Province, as a major production hub for fiber balls, sets a benchmark for pricing trends. The 15,500 RMB/ton price quoted by companies like Henan Kaijie represents the collective pricing floor of the central China water treatment filter media cluster. If this price persists, it could force some small and medium-sized processors to reduce output or switch production, creating self-regulation on the supply side.

Nationally, quotes in East China (e.g., Jiangsu, Zhejiang) are typically 2%-3% higher than in Henan, but the gap is narrowing. This indicates end-users are increasingly favoring cost-effective central China products, intensifying regional competition.

Structural Changes in Downstream Purchasing Behavior

Notably, water treatment companies are shifting from 'demand-based procurement' to 'project-based procurement.' Municipal projects are taking longer, reducing order frequency but increasing batch sizes. This shift demands stronger cash flow management from suppliers—large orders may involve payment cycles up to 90 days, while small orders fail to cover logistics costs.

Meanwhile, alternative filter media (e.g., quartz sand, anthracite) have shown less price volatility, prompting some water treatment firms to evaluate substitutions. If fiber ball prices remain stagnant, the risk of technological substitution will gradually build.

Practical Recommendations

For Purchasers - Prioritize long-term agreements: In a stagnant price environment, sign quarterly or semi-annual framework contracts with reputable suppliers to lock in current prices and include adjustment mechanisms. - Monitor environmental policy windows: Q3 typically sees intensive environmental inspections, which may stimulate centralized bidding for wastewater projects, potentially causing slight price rebounds. Complete key stockpiling by late August. - Test alternative filter media performance: Conduct small-scale comparative tests of quartz sand, manganese sand, etc., to assess operational cost and effluent quality changes, hedging against fiber ball price risks.

For Foreign Trade Companies - Diversify sourcing: Avoid over-reliance on a single production region (e.g., Henan); engage suppliers from Jiangsu, Shandong, etc., to leverage regional price differences for lower overall costs. - Optimize logistics: For export orders, use 'LCL consolidation + destination port distribution' to combine fiber balls with high-value filter media like activated carbon and filter cloth, reducing unit freight costs. - Expand into Southeast Asia: Infrastructure growth in Southeast Asia is boosting fiber ball demand by about 12% annually, but local supply is insufficient. Establish partnerships with local agents early and offer FOB terms.