On July 6, 2026, Rongsheng Petrochemical (including Shengyuan) reduced local polyester filament yarn prices by 100-200 yuan per ton. Semi-dull POY 75/36 was quoted at 8,100 yuan/ton, 100/96 at 8,100, 150/48 at 7,800, and 300/96 at 7,850. This price adjustment has sent ripples through the textile supply chain.
Industry Logic Behind the Price Cut
This reduction is not an isolated event. According to public industry data, upstream PTA and PX capacity continues to expand, while downstream weaving mills remain cautious due to sluggish end-demand for garments. As a market leader, Rongsheng's price move often sets a benchmark. The 100-200 yuan cut, though modest in magnitude, directly compresses traders' margins and expands spot market bargaining space.
Polyester POY is a key raw material for weaving. Its price fluctuations directly impact grey fabric costs and loom utilization rates. The current pressure on POY spot prices suggests that weaving mills may enjoy lower raw material costs in the short term, but it also reflects ongoing destocking pressure across the industry.
Sentiment Spillover to Polyester Staple Fiber
Polyester filament and staple fiber are closely linked within the polyester chain. News of Rongsheng's price cut dampened sentiment in the staple fiber market. On July 3, 2026, the main contract for polyester staple fiber (2609) on the Zhengzhou Commodity Exchange closed at 6,810 yuan/ton (settlement 6,792 yuan/ton), with open interest up by 12,741 lots. The rise in open interest indicates growing divergence between bulls and bears, and the filament price cut may further pressure bullish sentiment, raising the risk of short-term price corrections.
For staple fiber producers, the filament cut implies weaker cost support from polyester chips, increasing the likelihood of a follow-on decline. Downstream yarn mills may adopt a wait-and-see approach, seeking clearer price bottoms.
Regional Industry Belt Reactions
This price cut directly impacts major polyester filament consumption hubs like Xiaoshan and Shaoxing in Zhejiang, and Shengze in Jiangsu. Mills in these areas, which primarily produce conventional fabrics, are highly sensitive to raw material costs. Some may take the opportunity to stock up at lower prices, but most, constrained by weak orders, will stick to just-in-time purchasing to avoid capital tie-up.
Historically, a price cut by a leading player often triggers follow-on reductions by smaller producers, potentially ushering in a period of price adjustment. For exporters, lower raw material costs help reduce product costs, but they must guard against price concessions demanded by overseas buyers.