Polyester Filament Price Cut by 100-200 Yuan Signals Weak Demand Across the Chain

The polyester filament market is undergoing a fresh price adjustment. On July 3, 2026, Rongsheng Petrochemical (including Shengyuan Petrochemical) implemented selective price cuts of 100-200 yuan per ton on multiple polyester DTY specifications. For instance, 75/36 low-elasticity yarn was adjusted to 10,050 yuan/ton, 150/48 low-elasticity yarn to 9,150 yuan/ton, and 300/96 heavy network yarn to 9,250 yuan/ton. This move is not isolated but reflects weakening end-user demand transmitting up the supply chain.

Background

The price cuts cover mainstream deniers from fine to coarse, with modest but symbolic magnitude. As one of China’s largest polyester filament producers, Rongsheng’s pricing strategy often sets the tone for the industry. The selective reduction directly signals rising pressure on spot sales—downstream weaving mills show limited buying appetite, and inventory movement from polyester plants to traders and weavers has slowed markedly.

Industry data show the polyester DTY bull-bear score has dropped to -1, indicating broad consensus on near-term price weakness. The overall polyester filament score is also -1, reflecting a soft supply-demand balance. More notably, this sentiment has spilled over to the polyester staple fiber (PSF) segment via futures markets: on July 2, the main PSF contract (2609) on the Zhengzhou Commodity Exchange fell 136 yuan/ton, with short positions increasing, giving PSF a bull-bear score of -0.5. Though filament and staple fiber are different subcategories, they share upstream raw materials PTA and MEG, creating strong cost and sentiment linkages.

Industry Impact

Behind the price cuts lies a reallocation of profit margins along the chain. Current orders in end-use apparel and home textiles are insufficient, especially export orders constrained by overseas inventory destocking. Weaving mills maintain relatively high operating rates but mainly consume earlier stockpiles, showing low tolerance for high-priced raw materials. Polyester plants must proactively cut prices to free up cash flow, squeezing their own processing margins.

For PSF, the emotional spillover from filament cuts, combined with rising short positions in futures, suggests further near-term weakness. PSF downstream applications—nonwovens and filling materials—face similar consumer demand slowdowns. If polyester plant inventories continue accumulating, more specifications and product types may follow suit with price adjustments.

In key production clusters like Xiaoshan and Shaoxing in Zhejiang, and Shengze in Jiangsu, traders and weavers are increasingly adopting a wait-and-see attitude. Some small- and medium-sized weaving mills have shifted from “replenish as needed” to “buy as you use,” further exacerbating sales pressure on polyester plants.

Practical Recommendations

For Buyers - With polyester DTY prices in a short-term downtrend, adopt a phased purchasing strategy to avoid locking in high prices with bulk buys. - Closely monitor subsequent price moves from Rongsheng and other top producers; if cuts persist for two consecutive weeks, consider increasing purchase volumes to lock in lower prices. - Watch PSF futures trends; if the main contract continues falling, use futures hedging to lock in forward procurement costs.

For Exporters - When quoting for export orders, fully account for raw material downside risk; include price adjustment clauses in contracts to prevent margin erosion from falling feedstock costs. - Use the current window of weaker raw material prices to negotiate medium- to long-term order prices with overseas clients, enhancing competitiveness. - Monitor polyester filament quotes in Southeast Asian markets; if domestic prices remain lower than abroad, export advantages may expand, warranting increased export order intake.