15,500 CNY per ton—a seemingly ordinary figure that nonetheless reveals a delicate balance in the water treatment filter media industry on August 29, 2026. On that day, Henan Kaijie Water Treatment Co., Ltd. published quotes for fiber balls, with ordinary specifications of 30mm, 40mm, and 50mm diameters all priced identically, marking several consecutive weeks without price adjustments. Behind this price freeze lies a temporary equilibrium among raw material costs, downstream demand, and industry capacity—a balance whose duration is now the focus of both buyers and manufacturers.
Event Background
The quotes were provided by Henan Kaijie Water Treatment Co., Ltd., with delivery in Zhengzhou, Henan Province, representing a typical central China water treatment materials industrial cluster. Fiber balls, commonly used as filter media in industrial wastewater treatment, municipal sewage advanced treatment, and circulating water systems, have demand highly correlated with infrastructure investment and environmental policy enforcement. The uniform pricing across three specifications indicates sufficient inventory and stable order structures, with no supply-demand imbalance among sizes. From industry practice, a price gap of several hundred CNY per ton typically exists between 30mm and 50mm fiber balls due to filtration precision differences; the uniform quote highlights a volume-focused sales strategy.
Notably, since Q3 2026, PTA and ethylene glycol prices have weakened, reducing cost support for polyester staple fiber. Fiber balls primarily use polyester staple fiber as raw material, and lower raw material prices should normally transmit to finished product quotes. However, Henan Kaijie chose to maintain prices, suggesting the company may be digesting high-cost inventory or compressing profit margins to retain customer relationships. This divergence—falling costs, stable quotes—often signals an impending market price revaluation.
Industry Impact
For downstream water treatment engineering contractors, stable fiber ball quotes mean controllable short-term procurement costs, but they should also be wary of potential catch-up declines. Currently, in the late summer-early autumn period, most sewage treatment projects are in operation and maintenance, with new project demand not yet concentrated. Buyers remain cautious, purchasing on demand. This sentiment is particularly evident in Zhengzhou and surrounding markets, where traders report actual transaction prices slightly below listed quotes, with 50-100 CNY/ton negotiation space, indicating a looser real supply-demand situation than surface quotes suggest.
From an industry chain perspective, stable fiber ball prices are not favorable for upstream polyester staple fiber factories. If filter media companies continue to absorb raw material price declines without adjusting finished product prices, they will pressure upstream suppliers, intensifying competition in the polyester staple fiber market. Conversely, if raw material prices rebound later, fiber ball companies may quickly raise quotes, passing cost pressure downstream. Thus, the current price quiet period is essentially a renegotiation of profit distribution across the chain. For large water treatment enterprises with annual purchases exceeding 1,000 tons, this is a critical window to lock in long-term contracts.
Regionally, Henan, as a central water treatment materials distribution hub, has quotes with benchmark significance for neighboring provinces. Compared with traditional filter media production areas like Jiangsu and Shandong, Henan companies typically quote 3%-5% lower due to logistics and labor cost advantages; the current stable quote further consolidates its price depression status. However, new chemical fiber projects in Xinjiang and Inner Mongolia are gradually coming online, which may alter the regional supply pattern of polyester staple fiber and thus affect fiber ball production costs—a variable worth monitoring in Q4.