On July 9, a 2-million-ton PTA plant at Yisheng Hainan suddenly reduced operations, triggering a chain reaction across the chemical fiber industry. As the core feedstock for polyester products, PTA price fluctuations directly determine the cost baseline for downstream fabrics and yarns. The Textile Circle editorial team, based on industry public data, outlines the event's context and transmission logic.
Event Background
The Yisheng Hainan No.1 2-million-ton PTA plant entered a reduced operation state on July 9, with no restart date announced. This plant is among the major PTA capacity holders, and its reduction cuts daily supply by approximately 5,500 tons. Industry public data shows that the domestic PTA operating rate was already at a medium-low level, and this reduction further tightens supply, rapidly turning spot market sentiment bullish.
The futures market reacted more directly. On July 8, the main contract 2609 on the Zhengzhou Commodity Exchange closed at 5,622 yuan/ton, up 96 yuan/ton from the previous day, a 1.74% increase. Open interest rose by 2,419 lots, indicating increased bullish capital sentiment. The upward movement in futures prices has essentially pre-reflected market expectations of supply contraction, providing an upward anchor for spot prices.
From an industry structure perspective, this reduction is not an isolated event. Since 2026, the PTA industry has seen multiple plant fluctuations due to profit compression or planned maintenance, but this reduction occurs at the transition point between off-season and peak-season demand, potentially amplifying its price impact. The Textile Circle editorial team believes that supply-side disruption combined with futures capital momentum makes short-term PTA prices prone to upward movement.
Industry Impact
The shockwave of rising PTA prices is transmitting downstream along the chain. The four major polyester varieties—FDY, staple fiber, POY, and DTY—all use PTA as the primary raw material, with cost shares typically exceeding 70%. For every 100 yuan/ton increase in PTA, the theoretical cost of polyester filament rises by about 85 yuan/ton, with actual transmission depending on downstream acceptance.
Specifically, polyester FDY, as a high-value-added filament variety, is highly sensitive to raw material prices. Under the PTA price hike expectation, FDY producers are likely to attempt upward adjustments in ex-factory prices to maintain processing margins. For polyester staple fiber, due to relatively rigid demand from cotton spinning substitution, staple fiber enterprises have slightly stronger bargaining power for cost pass-through, but attention must be paid to the purchasing pace of downstream spinning mills.
Polyester POY and DTY are on the same processing chain, with POY serving as the feedstock for DTY, making their prices closely linked. PTA price increases first push up POY costs, then transmit to DTY through the texturing stage. If terminal fabric market orders fail to warm up simultaneously, downstream weaving enterprises may choose to digest inventories or delay purchases, thus curbing the price increase amplitude.