On August 12, international crude oil experienced a rare intraday rollercoaster: WTI crude climbed above $84 per barrel in the morning with a 1% gain, only to fall back to $81.37 by the close, a 1.00% daily decline and an intraday swing exceeding 3%. Brent followed suit, dropping below $87. For the textile industry, this is not just an energy price fluctuation but a typical 'pulse-type' shock to chemical fiber costs, transmitting through the PTA-polyester filament-greige fabric-finished fabric chain.
Event Background
Crude oil is the upstream source of the polyester industry chain, directly affecting PX and PTA production costs, and further transmitting to chemical fiber products such as polyester filament and staple fiber. The reversal from rise to fall within hours reflects sharp disagreement over supply-demand expectations rather than a clear directional trend. For textile companies relying on polyester, this high volatility means significantly increased unpredictability in costs.
From an industrial cluster perspective, quotation systems in Shengze and Changxing are under pressure. Typically, chemical fiber plants adjust ex-factory prices weekly or every ten days, but this rhythm lags during sharp daily crude swings. On August 12, if companies locked in raw material costs at morning oil prices while afternoon prices fell, their quotes would be higher than actual costs, weakening competitiveness; conversely, adjusting to afternoon prices might lead to cost inversions when replenishing raw materials.
Industry Impact
For upstream chemical fiber companies, crude volatility directly compresses profit margins. PTA producers' processing spreads are quickly squeezed during sharp oil swings because product prices often reference the previous trading day's oil price, while raw material purchases require immediate settlement. According to industry public data, PTA processing spreads in the first half of 2026 were already at historically low levels; the August 12 volatility may further worsen marginal losses for some plants, prompting production cuts or maintenance, thereby affecting future polyester supply.
Midstream weaving enterprises face more complex situations. Greige fabric prices typically lag raw material changes and are constrained by order cycles. When crude drops sharply intraday, weavers still hold high-priced polyester filament inventory while downstream customers begin pressuring prices, creating a 'high-cost inventory, low-price orders' scissors gap. This is particularly evident in spot-trading markets like Keqiao and Nantong, where traders quickly lower quotes after oil price drops, forcing weavers to follow.
For downstream apparel and home textile buyers, oil volatility is not simply a price-cut benefit but a quotation risk. International orders usually lock in fabric prices 1-3 months ahead; if crude falls sharply during that period, buyers may demand concessions, but if suppliers have already stocked high-priced materials, they may face supply disruptions or quality compromises. Conversely, if oil rebounds, buyers bear additional cost increases. Therefore, in the current high-volatility environment, procurement decisions shift from 'trend prediction' to 'volatility management'.
From a broader perspective, the correlation between crude oil and textile raw materials has strengthened in 2026. On one hand, global refining capacity is shifting toward chemicals, making PX supply more closely linked to refined product cracks; on the other, frequent geopolitical events have significantly raised short-term oil volatility. Industry public data show that in the first half of 2026, the proportion of days with WTI average daily swings exceeding 2% reached 35%, compared to just 12% in the same period of 2020. This means textile chemical fiber enterprises must incorporate oil price volatility into daily operational parameters, not just price levels.