On July 27, 2026, Rongsheng Petrochemical quoted 8,800 RMB/ton for polyester FDY 150D/96F semi-dull, with Zhejiang Juxing Chemical Fiber matching the same price. While the number itself is unremarkable, the unison pricing from two leading firms in Hangzhou and Shaoxing signals a key development: the chemical fiber industry chain has entered a delicate equilibrium zone.
Rigid Support from the Cost Side
The 8,800 RMB/ton price must be examined against upstream costs. Polyester FDY’s direct feedstocks are PTA and MEG, with PTA itself driven by PX costs. In 2026, international crude oil prices have remained elevated amid Middle Eastern geopolitical tensions, directly pushing up PX production costs. Although concentrated new PTA capacity had compressed processing margins below 300 RMB/ton earlier, recent plant maintenance has tightened supply.
Public data shows PTA prices stabilized in the 5,600-5,800 RMB/ton range in late July, translating to a feedstock cost of roughly 7,000 RMB/ton for FDY. After adding processing fees, auxiliaries, and depreciation, the 8,800 RMB/ton ex-factory price leaves melt-spinning plants with very thin margins. Unless PTA prices drop sharply, FDY prices are unlikely to break below 8,000 RMB/ton.
Regional Supply Characteristics
Notably, the two quoted origins—Hangzhou and Shaoxing—are the most concentrated areas for polyester filament yarn capacity in Zhejiang province. Zhejiang Juxing Chemical Fiber and Rongsheng Petrochemical represent two production models: integrated private refinery-petrochemical complexes and medium-sized specialized spinning mills.
Rongsheng, leveraging its Zhejiang Petrochemical integration, enjoys cost advantages in PX and PTA, making its FDY quotes market bellwethers. Juxing, as a specialized FDY producer, matching Rongsheng’s price suggests that even less cost-efficient mills see 8,800 RMB/ton as the breakeven floor. This regional price convergence reflects an implicit industry consensus to avoid destructive competition amid overcapacity.
Weak Demand and Structural Divergence
Cost support alone cannot explain why prices have not risen further. The true ceiling is set by downstream demand. The 150D/96F specification is mainly used in water-jet looms for conventional fabrics such as garment linings, luggage fabrics, and some home textiles. In the first half of 2026, textile and apparel export growth slowed, while domestic consumption showed a “volume up, price down” pattern. End-brand cost control has forced weaving mills to adopt a “buy as needed” strategy, with extremely low willingness to build inventory.
This “low inventory, short cycle” purchasing model directly suppresses speculative FDY demand. Even if upstream mills want to raise prices, downstream mills will not accept them. Thus, 8,800 RMB/ton acts as a “balance point”—upstream unwilling to cut, downstream unwilling to stockpile.
Outlook and Operational Strategies
Looking ahead one month, polyester FDY prices will likely fluctuate within a narrow range. On the upside, the end of PTA maintenance season could ease costs, while new polyester capacity coming online adds supply pressure. On the downside, crude oil is unlikely to fall sharply, and FDY mills’ own inventories are manageable, reducing the incentive for aggressive price cuts.