In early July 2026, the polyester filament market witnessed a critical price adjustment. Rongsheng Petrochemical, a leading industry supplier, announced localized reductions of 100-200 yuan/ton for various DTY polyester filament specifications. This move is not an isolated event but a direct reflection of weak downstream demand in the textile supply chain.
Details and Signals of Price Adjustment
Rongsheng Petrochemical (including Shengyuan Petrochemical) adjusted prices across multiple DTY specifications: 75/36 low-elastic at 10,050 yuan/ton, 100/96 light-net at 9,900, 120D/192F micro-net at 9,550, 150/48 low-elastic at 9,150, 150/96 low-elastic at 9,100, 300/96 low-elastic at 8,900, 300/96 light-net at 8,900, and 300/96 heavy-net at 9,250. Although the reduction was localized, as a core supplier, Rongsheng's pricing often sets the trend for the industry.
From an industry analysis perspective, the primary cause is insufficient terminal orders. Weaving mills show weak purchasing willingness, increasing spot inventory pressure. Accumulated stock forces upstream players to offer discounts to improve liquidity. This price transmission mechanism indicates that the entire supply chain—from chemical fibers to fabrics and garments—faces sustained demand challenges.
Chain Effects on Polyester Segment
DTY, as a key subcategory of polyester filament, its price cut directly pressures the spot market. Industry sentiment scores show both DTY and polyester filament at -1, indicating bearish dominance. More notably, this impact spreads to polyester staple fiber.
On July 2, 2026, the main staple fiber contract (2609) on the Zhengzhou Commodity Exchange fell by 136 yuan/ton, with increased short positions. This reflects pessimistic expectations among futures market participants. The staple fiber sentiment score is -0.5, with a weaker but noticeable emotional contagion.
For buyers, the current pricing environment offers more bargaining power, but they must guard against further price declines. For upstream factories, while price cuts may temporarily relieve inventory pressure, they could widen industry losses, especially if raw material costs remain high.
Regional and Supply Chain Transmission
Rongsheng Petrochemical is based in Zhejiang, and its pricing adjustments directly influence nearby polyester clusters in Shaoxing and Xiaoshan. Small and medium enterprises in these regions often follow the leader, so similar reductions are expected soon. Downstream fabric markets like Shengze and Keqiao may use this to lower grey fabric procurement costs, further squeezing weaving margins.
From a supply chain perspective, lower polyester filament prices indirectly benefit garment exporters. Reduced fabric costs help maintain export competitiveness amid currency fluctuations and uncertain overseas orders. However, without a clear recovery in garment demand, cost savings may not translate into higher order volumes.