The sharp drop in international oil prices on June 12, 2026, has sent a dramatic shift through the upstream cost logic of the textile industry. Brent crude futures closed down 3.37% at $87.33/barrel, while WTI crude futures fell 3.23% to $84.88/barrel, with intraday losses exceeding 5%. For the textile industry, which relies heavily on PTA and polyester filament yarn as core raw materials, this is far from just a numbers game—it directly rewrites the pricing anchor for chemical fiber products in the coming weeks.
Background
The trigger for the plunge is clear: substantial progress in Iran negotiations. New details of the US-Iran memorandum of understanding were disclosed by media, rapidly fueling market expectations that sanctions on Iran's crude oil exports could be eased. Brent crude at one point slumped 6% during the trading session, and WTI crude broke below the $85/barrel mark, hitting its lowest level since April 17. The CME subsequently announced the extension of WTI crude trading hours to a 7×24 model, signaling that volatility management has entered an unconventional phase.
From an industry perspective, crude oil prices underwent a 'stress test' in under 24 hours. Trump's remarks on the Iran issue further amplified market sentiment. Although a short-term rebound occurred late in the session, with both benchmark crude futures rising over $1, closing prices remained near two-month lows. This means that the procurement cost expectations for upstream petrochemical raw materials have been completely reset.
Industry Impact
For the textile supply chain, the transmission path of the crude oil plunge is linear: crude oil → naphtha → PX → PTA → polyester filament yarn → grey fabric. According to industry experience, for every $5/barrel drop in oil prices, the theoretical cost space for polyester filament yarn shifts downward by approximately 300-400 yuan/ton. On June 12, WTI crude fell by about $5 from its peak to trough, implying that polyester plants' raw material procurement costs could see a clear reduction in the coming week.
For downstream weaving mills, especially those concentrated in clusters like Shaoxing, Xiaoshan, and Shengze, this represents a 'window of opportunity.' In recent months, polyester filament yarn prices have remained relatively firm, supported by high crude oil prices, squeezing weavers' margins. The sharp drop in oil prices provides weavers with leverage for renegotiation—if polyester plants fail to promptly lower their quotes, they risk losing orders.
However, risks persist. The deep cause of the oil price plunge is tied to geopolitical maneuvering, and the Iran negotiation process is often volatile. The CME's extension of trading hours is essentially a warning of future high volatility. Textile companies must distinguish between 'sentiment-driven crashes' and 'trend-driven declines' when locking in raw material prices. If it is merely short-term panic selling, polyester plants may choose to hold prices and wait; if the negotiation materializes, it could initiate a sustained downward cycle.