On July 7, 2026, the polyester filament market in Wangjiangjing showed a systemic price correction, with most FDY and POY specifications dropping 100 yuan per ton, while DTY remained stable. This price signal indicates that upstream polyester raw material fluctuations have not effectively passed through to downstream, as weaving mills' purchasing intentions are shrinking.
Price Divergence and Inventory Pressure
Specific data reveals that in the FDY semi-dull series, 50D/24F from multiple origins fell from 9,300 yuan/ton to 9,200 yuan/ton, while 68D/24F and 75D/36F also saw 100 yuan/ton declines. The POY series showed even more uniform drops, with 50D/48F through 300D/96F all decreasing by 100 yuan/ton, the latter hitting 7,800 yuan/ton. In contrast, DTY and its network yarn varieties held steady, indicating that texturing mills have maintained price floors amid cost-demand trade-offs.
This divergence reflects inventory structure differences. FDY and POY, as upstream products, are more affected by polyester plant operating rates. While polyester chip prices have rebounded recently, filament inventories remain high, forcing plants to cut prices to relieve cash flow pressure. DTY, with narrower processing margins and insufficient downstream orders, sees traders preferring to wait rather than follow price cuts.
Blocked Upstream-Downstream Transmission
Upstream polyester raw materials have shown fluctuating upward trends recently, with PTA and MEG prices rising slightly, theoretically providing cost support for polyester filament. However, actual transactions in Wangjiangjing did not follow suit but instead showed price cuts, indicating that the core issue for downstream weaving enterprises is not cost but orders.
As a major weaving hub in Jiangsu-Zhejiang, Wangjiangjing's polyester filament trends directly reflect end-use textile and apparel demand. The domestic market has entered a slack season, while foreign trade orders have limited growth due to slow overseas inventory digestion. Weaving mills have generally reduced operating rates, purchasing raw materials only for immediate needs with minimal hoarding intent. This "buy on rising, not falling" mentality is amplified during price downturns, leading to lighter market transactions.
Outlook and Risk Warnings
Based on current data trends, polyester filament prices face further downward pressure in the short term. Declines in FDY and POY have created a chain reaction; if upstream raw materials cannot sustain strength, price cuts may spread to DTY varieties. For polyester plants, production cuts to support prices may become the next option, but without substantial terminal demand recovery, the effect will be limited.
For weaving mills, current raw material prices are relatively low but not at the bottom. Blind stockpiling risks inventory depreciation, while just-in-time purchasing may miss cost advantages during price rebounds. It is recommended to maintain 15-20 days of safety stock based on order cycles, while closely monitoring polyester plant maintenance plans and marginal changes in foreign trade orders.