Night Session Divergence: Polyester Staple Fiber Edges Up as Cotton Chain Pressures Persist

Night session trading on July 13 saw mixed performance among China's main futures contracts, with a clear divergence within textile raw material sectors. Bottle-grade chip futures rose 0.64% to 6,910 points, while polyester staple fiber (PSF) edged up 0.23% to 7,120 points. In contrast, cotton, cotton yarn, and PTA weakened collectively, falling 0.22%, 0.09%, and 0.11% respectively to 16,090, 22,515, and 5,620 points. This divergence is not accidental but reflects the real mismatch between cost transmission and demand pace.

Polyester Side: Cost Support vs. Demand

The overnight rebound in PSF and bottle-grade chips was mainly driven by passive gains in upstream PX prices amid recent crude oil recovery. Bottle-grade chips, one of the most crude-sensitive polyester products, posted a 0.64% gain, the largest among all textile-related contracts, reflecting the market's immediate reaction to short-term cost increases. PSF followed but with limited magnitude, indicating that processing margins have not widened synchronously.

For PSF buyers, the current price of 7,120 yuan/ton sits at the midpoint of the past month's trading range. Unless crude sees an unexpected sharp decline, PSF's downside is limited. However, weaving mill operating rates remain low, lacking concentrated restocking demand, which prevents PSF from forming a trend-driven uptrend. This means traders and spinners should maintain flexible procurement pacing and avoid chasing highs to build inventory.

Cotton Chain: New-Crop Pressure and Inventory Dilemma

Cotton futures fell 0.22% overnight to 16,090 yuan/ton, extending the weak trend from the day session. This price level is approaching the lower bound of the recent consolidation range. The bearish logic stems from two factors: first, the Northern Hemisphere's new cotton crop is in a critical growth period, with generally favorable weather conditions in major producing countries, reinforcing expectations for a bumper 2026/27 season; second, downstream cotton yarn market transactions are sluggish, with spinning mills' yarn inventories accumulating, forcing some mills to cut prices or reduce output to ease cash flow pressure.

Cotton yarn futures fell 0.09% to 22,515 yuan/ton, a smaller decline than cotton, but considering the normal processing spread between cotton and yarn, this drop actually reveals mills' predicament: when cotton falls and yarn follows, mills cannot pass on raw material losses and instead must absorb the direct impact of product depreciation. For factories holding large cotton yarn inventories, the priority is not to bet on a rebound but to accelerate destocking through differentiated products or shorter payment terms.

PTA fell 0.11% to 5,620 yuan/ton, the smallest decline, but as the hub of the polyester chain, its weak performance drags on PSF and bottle-grade chips' rebound. PTA processing margins have been compressed to low levels, but new capacity release pressure remains high, making it difficult to see a clear cost-driven rise in the near term.

Practical Recommendations

For Buyers - Adopt a phased pricing strategy for PSF, gradually building positions below 7,100 yuan/ton while avoiding chasing highs; monitor crude oil disruptions for short-term opportunities. - For cotton, maintain a wait-and-see approach until prices fall below 16,000 yuan/ton with concentrated point-price orders; prioritize basis contracts to lock in basis risk. - For cotton yarn, negotiate long-term discounts with mills, leveraging the current window where mills are eager to destock to secure better payment terms.

For Foreign Trade Enterprises - For cotton yarn exports to Southeast Asia, use forward letters of credit or hedging tools to mitigate RMB exchange rate volatility; the current inverted domestic-foreign price spread limits negotiation room for export orders. - For polyester fabric export quotes, anchor costs to PSF futures night-session closing prices to avoid quote invalidation from short-term raw material swings; include price adjustment clauses with clients to cover raw material volatility.