Daily review: Cost Performance Disappoints, Polyester Bottle Chip Market Trends Weak

Market overview: On May 29, 2026, the polyester bottle chip market prices edged down within a narrow range. In East China, the average market price of polyester bottle chips was RMB 8,370/ton, down RMB 30/ton from the previous trading day, a decline of 0.36%. Polyester raw materials were fluctuating weakly, with insufficient support from the cost side. Most polyester bottle chip producers kept their offers stable, while some lowered prices by RMB 50/ton. The actual negotiation center in the market moved down weakly. Downstream buyers followed up on a need basis, and trading activity remained limited.

On the supply side, the overall operating rate of PET bottle chips is around 77.30%.

In the upstream market: International oil prices declined during the day, with insufficient support from the cost side. The PTA market in East China rose and then fell back, with prices around 6255 yuan/ton. The ethylene glycol market showed weak fluctuations, with spot prices in the East China market around 4525 yuan/ton.

**Market Outlook:** The market remains cautious about the possibility of a potential U.S.-Iran agreement and continues to await progress in the U.S.-Iran negotiations. International crude oil prices are expected to fluctuate weakly in the short term, providing limited cost support for the polyester sector. Downstream end-users show little willingness to build inventories in large volumes, and purchases are mainly made on a just-in-time basis, leaving supply-demand support limited. Therefore, the polyester bottle chip market is expected to move in line with raw materials and fluctuate narrowly with a weak-to-stable trend in the short term. In East China, the market price is expected to range between **RMB 8,150 and 8,600 per metric ton**.