15,500 RMB per ton—that was the uniform quotation offered by Henan Kaijie on August 29, 2026, for three specifications of fiber balls (30mm, 40mm, and 50mm in diameter). The fact that all three sizes carry the same price is itself a signal worth pondering: in conventional polyester staple fiber (PSF) products, size differences usually correspond to price gaps, but the convergence of prices for water-treatment-grade fiber balls suggests that the market currently values functional attributes over dimensional differences.
Background
The quotation originates from Zhengzhou, Henan Province, with delivery also pointing to the same city. Henan is not a traditional PSF production hub, but it has become an important cluster for water-treatment filter media. Fiber balls, as filter media, are primarily made from PSF, and their price trends are closely tied to upstream polyester chips, PTA, and MEG. At 15,500 RMB/ton, the price is nearly double that of conventional PSF (1.4D×38mm, around 7,000-8,000 RMB/ton), with the premium largely stemming from modification treatments and functional design in processing.
Notably, the quoting entity is a water-treatment company, not a spinning mill. This suggests that the price reflects supply-demand dynamics in the water-treatment filter media market rather than direct signals from the textile fiber market. However, a clear transmission chain exists: when PSF raw material prices fluctuate, fiber ball production costs change accordingly, ultimately impacting procurement budgets for water-treatment projects.
Industrial Impact
From an industrial belt perspective, Henan Kaijie's quotation is linked to the agglomeration of water-treatment material enterprises in the Central Plains region. In recent years, Henan has leveraged its transportation advantages and environmental protection industry policies to attract a number of water-treatment material companies, forming a filter media supply belt centered around Zhengzhou. The expansion of regional capacity has made fiber ball prices more resilient during raw material price increases, as localized production reduces logistics costs.
For the textile industry, fiber balls are not a mainstream fabric or yarn variety, but their demand growth reflects the penetration of PSF into nonwovens and industrial textiles. With stricter environmental regulations, the upgrading of wastewater treatment plants and the increase in industrial wastewater treatment projects have driven steady demand growth for filter media such as fiber balls. This implies a shift in PSF consumption structure from traditional apparel fabrics toward industrial textiles, providing new demand support for upstream polyester plants.
The flat price also implies relative stability in upstream costs. If PTA and MEG prices were to fluctuate significantly, fiber ball quotations would hardly remain unchanged. Therefore, the flat price of 15,500 RMB/ton can be viewed as the market's expectation for short-term cost trends—no violent swings in raw materials, and no explosive growth in downstream demand.