Polyester Filament Price Easing: Rongsheng Petrochemical's Adjustment and Industry Implications

The polyester filament yarn market is undergoing a price recalibration. Rongsheng Petrochemical, a key supplier in the industry, has reduced prices for selected polyester DTY specifications by 100 to 200 yuan per ton. While the magnitude is modest, the signal is clear: end-order support is weakening, and spot inventory pressure is building.

Background and Data Breakdown

According to publicly available industry data, the adjustment covers multiple mainstream specifications. For instance, 150/48 low-elastic DTY is now quoted at 9,150 yuan/ton; 300/96 low-elastic at 8,900 yuan/ton; 300/96 light network at 8,900 yuan/ton; and 300/96 heavy network at 9,250 yuan/ton. Other specifications include 75/36 low-elastic at 10,050 yuan/ton, 100/96 light network at 9,900 yuan/ton, 120/192F micro network at 9,550 yuan/ton, and 150/96 low-elastic at 9,100 yuan/ton. The overall reduction is in the 100-200 yuan/ton range, representing a targeted adjustment rather than a broad price cut.

This move follows a weakening market sentiment in early July. On July 2, the main polyester staple fiber contract (2609) on the Zhengzhou Commodity Exchange fell by 136 yuan/ton, with a notable increase in short positions. The combination of futures weakness and spot price cuts amplifies the bearish outlook for the polyester segment.

Industry Impact: Transmission from DTY to Staple Fiber

Rongsheng Petrochemical's scale in the polyester sector makes its pricing a bellwether. The price reduction directly reflects cautious purchasing behavior among downstream weaving and texturing mills. Polyester DTY, as an intermediate product, typically lags POY in price movements but is more closely tied to end demand. The current softening of DTY prices indicates that terminal textile and apparel orders are providing insufficient support, with inventory pressure moving upstream.

More significant is the sentiment transmission effect. Although polyester filament and staple fiber are different subcategories, they share common raw materials (PTA and MEG), creating strong price linkage. After the filament price cut, the staple fiber market also felt pressure, as evidenced by increased short positions in futures. If filament prices continue to weaken, downstream buyers may delay purchases, further squeezing staple fiber margins.

From a value-chain perspective, the current supply-demand imbalance is primarily demand-driven. Export orders have been recovering slower than expected due to overseas inventory cycles and exchange rate volatility, while domestic demand remains tepid during the seasonal transition. Rongsheng's price adjustment is essentially a proactive response to market rebalancing.

Practical Recommendations

For Buyers - Current DTY prices are at a cyclical low, but downside risk persists. Buyers should adopt a need-based procurement approach, avoiding large stockpiles, and focus on mainstream specifications like 150/48 and 300/96 for further price signals. - Monitor PTA and MEG futures closely. If raw material prices continue to decline, filament prices may have room for further cuts. Consider a phased purchasing strategy to mitigate price volatility.

For Exporters - Export quotations should account for raw material price fluctuations. Negotiate short-term floating price agreements with upstream suppliers, or use forward contracts to lock in part of the cost. - Monitor overseas restocking cycles. If foreign clients delay orders due to falling prices, offer flexible supply options with smaller, more frequent shipments to maintain customer relationships.