International oil prices experienced sharp fluctuations on July 8, with Brent crude surging 5% to $79.60/barrel in a single day, while WTI crude rose 4.75% to above $74/barrel. The direct trigger for this jump came from Middle East geopolitics—after US forces launched a series of strikes against Iran, Iranian media signaled that if new attacks occur, the Strait of Hormuz would be closed. For the textile industry, this is not just energy price volatility; it means the entire chemical fiber cost chain—from naphtha to polyester chips to polyester filament—will face repricing.
Event Background: Three Key Nodes of Oil Price Abnormalities
The first node appeared on the morning of July 8 Beijing time, when the US military announced the start of a series of strikes against Iran, and WTI crude opened 0.3% higher, but the market had not yet fully priced in the risk. The second node came after 16:00 that afternoon, when Brent and WTI both surged over $1, with Brent breaking $77/barrel and intraday gains quickly expanding to 2%, 3%, and then 4%. The third node came after 22:00, when Brent's gain officially exceeded 5%, and the Brent three-month spread hit $2.36/barrel, the highest since June 16—this spread reflects supply tightening expectations, not short-term sentiment.
Notably, the US and Iran had previously signed a peace agreement memorandum of understanding, but Trump did not reaffirm the temporary agreement during the NATO summit, causing market confidence in the peace outlook to plummet. Iran further used the threat of closing the Strait of Hormuz as extreme deterrence. This strait handles about one-third of global seaborne oil trade, and if blocked, textile-intensive regions in Asia—China, India, Southeast Asia—would face raw material supply disruptions first.
Industry Impact: The Practical Path of Chemical Fiber Cost Transmission
The transmission from oil prices to textile costs is not linear, but the path is clear. For every $10/barrel increase in crude oil, naphtha costs increase by about $80-100/ton; naphtha is the direct raw material for PX (paraxylene), which accounts for about 60%-70% of PTA (purified terephthalic acid) production costs; PTA then polymerizes with MEG (monoethylene glycol) to produce PET (polyester chips), which is finally drawn into polyester filament or staple fiber. Based on the current Brent price of $79/barrel, if oil prices maintain or continue to rise, the cost support for polyester POY (partially oriented yarn) will shift upward by 300-500 yuan/ton.
For the domestic polyester industry chain, the timing of this shock is not friendly. Early July is traditionally a low season for textiles, with weaving mill operating rates generally between 65%-70%, gray fabric inventories at medium to high levels, and downstream procurement mostly maintaining just-in-time demand. The sudden oil price surge will trigger two chains of reactions: first, upstream polyester factories may take the opportunity to raise prices, but end orders have not simultaneously recovered, causing a disconnect between midstream weaving mills' willingness to stock up on rising prices and their actual digestion capacity; second, if the Strait of Hormuz risk continues to ferment, naphtha import costs will rise significantly, PTA processing spreads may be forced to narrow, and some small polyester units may face production cuts or maintenance pressure.
Practical Recommendations: Short-Term Hedging and Medium-Term Layout
For Purchasers - Current polyester filament prices have not fully reflected the oil price increase. It is recommended to lock in partial POY and FDY orders in batches within 3-5 days, avoiding full positions on chasing highs, using a "small orders, quick replenishment" strategy to control exposure. - Monitor the basis changes in the PTA futures market. If the spot basis strengthens (i.e., spot premium to futures), it indicates upstream reluctance to sell, and consider using futures hedging to lock in long-term raw material costs. - For blended polyester varieties in gray fabric orders, negotiate "raw material price linkage clauses" with downstream apparel brands to partially transfer oil price volatility risks to the end.
For Foreign Trade Enterprises - The crude oil premium caused by Middle East tensions may last 1-2 weeks, but if it evolves into a long-term blockade, shipping delays and container freight increases will become new variables. It is recommended to confirm Middle East route capacity with freight forwarders in advance and assess the cost increase of rerouting via the Cape of Good Hope. - For chemical fiber fabric contracts exported to Southeast Asia and South Asia, include a "geopolitical surcharge clause" in quotations, clarifying that prices can be renegotiated when oil price fluctuations exceed 5%. - Monitor changes in China Customs data for raw material imports from Iran and Iraq. If a cliff-like drop occurs, promptly switch to PX/PTA sources from South Korea or Taiwan, even though the latter may come at a premium.
The alarm bell this round of oil price fluctuations rings for the textile industry is: geopolitical risk is no longer a macro narrative but a real variable directly acting on the chemical fiber cost curve. Both polyester factories and weaving mills need to establish more agile raw material price response mechanisms, rather than passively adjusting after cost inversions occur.