A notable signal emerged in polyester DTY pricing at the end of July 2026: two major Zhejiang-based chemical fiber companies—Juxing Chemical Fiber and Rongsheng Petrochemical—quoted ex-factory prices of 9,350 and 9,550 CNY/ton, respectively, a narrow spread of only 200 CNY/ton. This tight differential itself suggests the market lacks a clear unilateral driver, with upstream and downstream locked in a fragile game of negotiation.
Price Anchor and Cost Support
The quoted DTY specification—150D/48F, AA grade, semi-dull, low-elastic—is one of the most commonly used varieties in the weaving process. The 9,350-9,550 CNY/ton range is essentially flat compared to the Q2 2026 average, showing no seasonal uptick. Behind this stability lies the fact that PTA and MEG prices remained range-bound through June and July, failing to provide a clear cost direction for polyester filament yarn. Polyester plant processing margins are compressed near the breakeven line, leaving little room for proactive price cuts, yet lacking downstream order support for increases.
More critically, Rongsheng Petrochemical, as an industry leader, priced slightly higher than Juxing, typically signaling a relatively optimistic outlook or healthier inventory structure. Smaller and medium-sized fiber mills are more inclined to trade volume for price, reflecting intra-industry divergence: companies with higher capacity concentration enjoy stronger pricing power, while smaller players are forced to follow.
Downstream Weaving Procurement Logic
Another dimension to observe in the current DTY quotes is the stocking pace of downstream weaving mills. Historically, late July marks the start of the autumn/winter fabric order season, when mills typically purchase raw materials in advance to lock in costs. But July 2026 tells a different story: end-apparel brands have generally delayed placing autumn/winter orders, with order volumes shrinking year-on-year. This has led weaving mills to adopt a "buy-as-needed" strategy, reluctant to build high inventories.
Operating rates in major weaving clusters such as Shengze, Changxing, and Xiaoshan hovered around 70% in late July, down 5-8 percentage points from a year earlier. This means actual DTY consumption at the weaving end has not expanded, and fiber mills' shipments rely more on existing order turnover than new demand. Against this backdrop, the sustainability of the 9,350-9,550 CNY/ton price level depends heavily on whether autumn/winter orders materialize in bulk before mid-August.
Inventory Transmission Risk in the Chain
A signal easily overlooked is the slow accumulation of finished goods inventory at polyester plants. According to publicly available industry data, as of the fourth week of July, social inventory of DTY stood at about 18-20 days, up 2-3 days from the end of June. If August orders still disappoint, fiber mills may face passive inventory buildup, opening the door for price concessions.
Meanwhile, the upstream PTA side also faces supply increment pressure from new plant startups. Approximately 3.5 million tons of new PTA capacity is scheduled to come online in the second half of 2026, mainly in Zhejiang and Liaoning. Once PTA prices soften, the cost support for polyester filament yarn will quickly collapse, potentially breaking the current price balance.