Cotton spot prices surged sharply in the first week of August, with domestic 3128B grade lint reaching 17,952 yuan/ton by August 10, a weekly gain of 2.93%. This rally is driven by a combination of extreme heat in Xinjiang and high premiums in state reserve auctions. For the textile supply chain, the contrast between strong raw material prices and weak finished goods demand is stark, triggering a significant redistribution of profits along the chain.
Heat-Driven Yield Fears: Weather as the Primary Price Driver
From August 3 to 6, major cotton-growing regions in Xinjiang, including Turpan, Hami, and southern Bazhou, experienced sustained extreme heat, with temperatures exceeding 40°C and local peaks above 45°C. This coincided with the critical flowering and boll-setting stage, accelerating water evaporation, weakening pollination, and raising the probability of flower and boll shedding. Market participants reacted swiftly, with yield reduction expectations intensifying and providing solid fundamental support for higher prices.
The weather factor is amplified because Xinjiang accounts for a dominant share of national cotton output, so any downward revision in yield directly impacts total supply. The current period is crucial for determining per-unit yield, and field management's ability to mitigate heat stress will directly influence the new crop. In the short term, however, yield concerns are difficult to disprove, offering a sustained narrative for bullish trading.
Reserve Auctions: Zero Unsold Lots and High Premiums Reflect Tight Spot Supply
Parallel to the spot market, reserve cotton sales have become a key window into supply-demand reality. During the week of August 3-7, 40,100 tons of reserve cotton were offered, with a 100% transaction rate, an average price of 17,014 yuan/ton, and an average premium of 1,497 yuan/ton over the benchmark 3128B grade. Cumulatively through August 7, 120,259.425 tons had been sold, with an average price of 17,173.33 yuan/ton (3128B equivalent: 17,801.48 yuan/ton), maintaining a full transaction rate throughout.
Zero unsold lots and high premiums are not coincidental. They signal two things: first, available high-quality cotton in the spot market is indeed tight, otherwise enterprises would not pay such premiums at auctions; second, downstream demand for restocking remains steady despite the off-season, as spinners need to secure raw materials to maintain production. In other words, auction heat is a direct reflection of spot tightness.
Margin Squeeze and Procurement Strategy Shifts
In contrast to the strong raw material side, the downstream textile market remains in the off-season. Terminal orders for apparel and home textiles are weak, traders and fabric mills are cautious, and yarn enterprises focus on destocking, adopting stable pricing with only minor upward adjustments. Mainstream products include medium-count carded, combed, and compact yarns, while demand for premium differentiated products lacks momentum.
The biggest contradiction is that cotton price increases far outpace yarn price hikes, narrowing the spread and compressing spinning margins. Under profit pressure, spinners resist high-priced new cotton, adopt a wait-and-see attitude toward spot point pricing, and control restocking volumes. To offset high costs, many small and medium-sized mills have shifted procurement toward reserve cotton auctions, which offer better cost-effectiveness than market-distributed domestic cotton, effectively lowering overall cotton costs and serving as a primary risk-aversion tool.
Near-Term Outlook: Strong Raw Materials, Weak Finished Goods Likely to Persist
Overall, the bullish logic for cotton remains dominant in the short term. Persistent heat in Xinjiang keeps yield reduction expectations alive, and high premiums in reserve auctions reflect tight spot supply, supporting spot prices. However, the downstream textile demand weakness cannot be repaired quickly, and spinners' profit pressure and cautious purchasing will continue to cap upside potential.
This implies that cotton prices may remain elevated with high volatility in the coming weeks, but the upward slope will be constrained by demand-side factors. For all chain participants, the key variables are the evolution of heat conditions and the pace of reserve releases. If heat persists, yield concerns may push futures and spot prices higher; if weather improves or reserve volumes increase, market sentiment could cool.