On June 29, 2026, polyester filament yarn prices in the Shengze market remained flat across the board, but beneath the calm price list, undercurrents were strong—major polyester plants launched a 'one-day price promotion' strategy, with actual transactions widely involving negotiated discounts, and a few factories even directly lowered their listed prices.
This operation sends a clear signal: against a backdrop of oscillating but slightly warm feedstock costs, the polyester side is more worried about inventory pressure than profit margins.
Price Stalemate Hides a Destocking Battle
Looking at specific quotes, FDY semi-dull all specifications were unchanged from the previous trading day. For example, a major Wujiang mill listed FDY 50D/24F at 9,700 yuan/ton, while Shenghong Chemical Fiber quoted the same specification at 9,500 yuan/ton; DTY 75D/36F from Changshu Tehua was at 10,300 yuan/ton, all unchanged. The FDY bright series also saw no adjustment, with the Wujiang mill's 40D/24F still at 10,600 yuan/ton.
However, industry public data reveals that actual transaction prices at polyester plants have fallen below listed prices. The so-called 'flat listing' is essentially a strategy of stability on the surface but hidden decline—factories use listed prices to stabilize market expectations while digesting high-cost inventory through case-by-case negotiations. This strategy is common in the off-season, but it also means that profit margins in the polyester segment are being squeezed.
Misaligned Game Between Feedstock and Demand
Currently, upstream raw materials like PTA and ethylene glycol show an oscillating but slightly upward trend, theoretically providing cost support for polyester filament. But what puzzles the market is that this upward cost movement has not effectively passed through to polyester yarn prices. The reason lies in the downstream weaving sector, which is in a traditional off-season with generally lower operating rates. Weaving mills are only replenishing on a need-to basis, lacking the appetite for stockpiling.
This rhythm mismatch between upstream and downstream leaves polyester plants in a dilemma: if they follow raw material price hikes, they risk further suppressing already weak demand; if they cut prices to promote sales, profits will come under more pressure. Therefore, 'consolidation' becomes the most likely short-term price path—neither a significant rise nor a deep fall, but a narrow range to digest inventory and wait for demand recovery.
Industrial Belt Reactions and Regional Divergence
Shengze, as an important distribution hub for polyester filament in China, its price trends serve as a bellwether for the Jiangsu-Zhejiang textile industry cluster. Looking at quotes by origin, price differences for the same specification across major producing areas like Wujiang, Tongxiang, Xiaoshan, and Shaoxing are not large. For example, FDY 75D/36F is quoted at 9,000 yuan/ton by both Tongkun Group and Xinfengming, but only 8,900 yuan/ton by Shaoxing Tiansheng, reflecting intense regional competition, with some factories willing to offer lower prices to win orders.
This regional divergence is a boon for buyers—they can achieve better procurement costs through price comparison. But for upstream factories, it means the battle for market share is intensifying.
Short-Term Outlook and Practical Advice
Overall, the polyester filament market is likely to maintain a narrow consolidation pattern over the next 1-2 weeks. The slightly warm bias of feedstock provides a floor, but the weakness of off-season demand caps upside potential. Polyester plants will continue to prioritize destocking, and the room for negotiation may widen further.