A $1 per barrel increase in crude oil prices often takes two to three weeks to fully transmit to polyester filament costs. On June 30, Brent crude rose over 1%, pushing WTI crude to $71 per barrel—a fluctuation that directly impacts the entire textile chemical fiber supply chain.
For the polyester industry, which relies on PTA and MEG as direct raw materials, crude oil is the ultimate upstream. Public industry data shows that for every 10% change in crude oil prices, polyester POY costs fluctuate by approximately 3%-4%. While $71 per barrel is within the mid-range of recent years, the signal is clear: the floor for chemical fiber raw materials is moving upward.
Cost Transmission: From Crude to Fabric
Chemical fibers account for over 84% of China's textile fiber processing, with polyester alone exceeding 60%. Rising crude oil prices directly push up prices of intermediates like PX, PTA, and MEG. The PX-naphtha spread has recently narrowed to below $300 per ton, compressing PTA plant margins and causing some units to reduce operating rates. This suggests tighter supply of polyester filament and staple fiber, with prices likely to hold firm or rise.
- Polyester filament: Cash flow for POY, FDY, and DTY has narrowed by 150-200 RMB per ton over the past month.
- Nylon chain: Caprolactam prices follow pure benzene; the spread between pure benzene and naphtha has widened, pressuring nylon chip costs.
- Viscose staple fiber, though based on cotton linters, is also affected by linked energy costs for electricity and caustic soda.
For weaving mills, the procurement window is shrinking. If Brent crude stays above $72 per barrel, polyester filament prices may increase by 300-500 RMB per ton by mid-July.
Industrial Cluster Response: Loom Load Rates Under Pressure
Loom operating rates in major chemical fiber clusters like Shengze, Changxing, and Xiaoshan remain around 78%, 5 percentage points higher year-on-year. However, under the expectation of rising raw material costs, intermediate traders are reducing stockpiles, and polyester plant sales-to-output ratios have fallen below 80% for over a week. Inventory transfer from polyester plants to weaving mills is slowing.
Fabric buyers in the Nantong home textile cluster report that grey fabric prices have not kept pace with raw material increases, compressing weaving margins. Some small mills are planning to reduce operating rates to avoid inventory depreciation. If this trend continues, fabric prices may see a catch-up increase by the end of Q3.
Foreign Trade Perspective: Exchange Rate and Oil Price Synergy
The RMB has traded in a 7.2-7.3 range against the USD in 2025. The combination of USD-denominated crude oil price increases and exchange rate factors has raised actual procurement costs for Chinese chemical fiber exporters more than nominal increases suggest. Southeast Asian buyers are price-sensitive, and Chinese chemical fiber products face growing competition in Vietnam and Bangladesh markets.
- Polyester filament export quotes have risen $20-30 per ton from last month.
- Some orders are shifting to local suppliers in India and Indonesia.
- However, China's advantage in differentiated products (e.g., recycled polyester, functional fibers) remains hard to replace.
Practical Recommendations
For Buyers - Monitor crude oil's persistence in the $70-72/bbl range. If it holds for five consecutive trading days, lock in Q3 raw material prices before mid-July. - Prioritize long-term contracts for polyester FDY and POY; staple fiber can be watched, as relatively weak cotton prices offer substitution potential. - Negotiate monthly price adjustment mechanisms with suppliers, incorporating crude oil fluctuations into formulas to avoid sudden large increases.
For Foreign Trade Companies - Shorten quotation validity from 30 to 15 days, and include raw material price fluctuation clauses in contracts. - Track local chemical fiber capacity additions in Southeast Asia, such as Vietnam's polyester capacity reaching 2 million tons annually, which may divert some orders. - Use futures to lock in PTA and MEG prices, hedging against crude oil rises, especially for forward quotes on spring next year orders.
The fluctuation of crude oil around $71 per barrel is not an isolated event for the textile industry but a signal of a cost cycle. Profit distribution along the chemical fiber chain is shifting from polyester end to raw material end, requiring downstream companies to adopt more refined procurement rhythms.