Polyester Filament Price Eases: What Does Rongsheng Petrochemical's Price Cut Signal?

The polyester filament yarn market is undergoing a fresh round of price adjustments. On July 6, 2026, Rongsheng Petrochemical (including Shengyuan) reduced its local polyester filament yarn quotes by 100-200 yuan/ton. Specific semi-dull POY prices were set at 8,100 yuan/ton for 75/36 and 100/96, 7,800 yuan/ton for 150/48, and 7,850 yuan/ton for 300/96. This move is not an isolated event but a concentrated reflection of the current supply-demand dynamics in the chemical fiber industry chain.

Direct Impact of the Price Cut

This adjustment directly pressures the POY spot market. As a leading player, Rongsheng's pricing actions often serve as a bellwether. The semi-dull POY 150/48 grade dropping to 7,800 yuan/ton marks a clear downward shift from previous ranges. Spot market negotiation margins have widened, cementing short-term price pressure. For downstream weaving mills, this alters procurement cost expectations—any prior stockpiling intentions may turn into wait-and-see behavior amid a falling price channel.

Notably, the polyester staple fiber market is also affected by sentiment spillover. On July 3, 2026, the main contract 2609 on the Zhengzhou Commodity Exchange closed at 6,810 yuan/ton with a settlement price of 6,792 yuan/ton, while open interest increased by 12,741 lots. Rising open interest typically signals heightened long-short divergence, and the weakness in filament adds bearish sentiment to staple fiber. In the near term, staple fiber futures may continue to face modest pressure.

Industrial Transmission: Chain Reactions from Upstream to Downstream

Rongsheng's price cut essentially results from the interplay of upstream inventory pressure and sluggish demand. As a core intermediate in the polyester chain, filament yarn price fluctuations directly impact PTA and MEG trends and indirectly affect fabric cost structures. Downstream weaving markets show clear order divergence: home textile demand remains relatively stable, but apparel fabric sectors are slowing restocking due to weak end-consumption. This forces polyester plants to destock via price reductions.

From a regional industry cluster perspective, weaving mills in Shengze, Changxing, and Xiaoshan—major POY consumption hubs—will face a more flexible procurement window. Lower costs are beneficial, but the 'buy on rising, not falling' mentality may further delay order placement. This tug-of-war will amplify short-term volatility, but over the medium term, price adjustments help clear inventories and restore supply-demand balance.

Practical Recommendations

For Buyers - Adopt a phased procurement strategy to avoid being trapped by large one-time stockpiles during a downtrend. - Focus on transaction price changes for mainstream grades like POY 150/48, leveraging wider negotiation margins for better terms. - If orders are stable, consider moderate restocking after price stabilization signals emerge, but keep inventory cycles under 15 days.

For Foreign Trade Firms - Lower polyester filament prices reduce export fabric costs; use this to optimize quotes and boost overseas order competitiveness. - Monitor the interplay between currency fluctuations and raw material prices; include price adjustment clauses in long-term contracts. - Proactively share price drop information with clients in emerging markets like Southeast Asia to stimulate inquiries and orders.