China's domestic cotton market is bracing for a new round of reserve cotton releases. On July 14, 2026, China Reserve Cotton Management Co., Ltd. announced it will begin auctioning part of the central reserve cotton via the National Cotton Trading Market starting July 20, with sales conducted on each statutory working day. Unlike previous years, the floor price formula has been revised to assign equal weight (50%) to domestic and international spot cotton price indices, adjusted weekly. This means the cost of reserve cotton for mills will directly track the fluctuations of both domestic and global cash markets, replacing the previous fixed or domestically anchored pricing.
Market-oriented pricing signal
According to the formula disclosed in the announcement, this week's reserve cotton floor price (based on grade 3128B) equals 50% of the arithmetic average of the previous week's domestic spot price index plus 50% of the arithmetic average of the previous week's international spot price index. The domestic index is the average of the China Cotton Price Index (3128B) and the National Cotton Price Index (3128B). The international index uses the Cotlook A Index, converted via exchange rate, tariff (1%), and VAT (9%). The exchange rate follows customs methodology, using the central bank's benchmark rate on the third Wednesday of the preceding month.
This design signals that policymakers intend to keep reserve pricing aligned with market reality while preventing detachment. The 50% international weight means global price moves—driven by weather events or trade policy in major producing countries—will directly impact domestic mill procurement costs. For mills accustomed to anchoring their cost expectations on domestic prices alone, this represents a significant shift in risk exposure.
From supply assurance to arbitrage prevention
Another key change is the tightening of eligibility and usage rules. The announcement stipulates that only textile mills can bid, and purchased cotton must be used solely by the bidding enterprise—the unified social credit code or tax registration number must match that of the textile mill. Any resale will result in the offending company being barred from future reserve cotton trading. Non-textile enterprises that bid illegally will have their bids voided and be treated as defaulters.
This rule effectively closes the arbitrage channel for traders and intermediaries who previously bought reserve cotton and resold it to mills at a markup. By limiting bidding to mills for self-use, the policy reduces speculative demand and competition. For genuine production buyers, this means fewer competitors at auction, but also the burden of inventory risk since purchased cotton cannot be resold.
Practical impact on procurement timing and inventory management
The daily auction volume is not fixed in advance—the announcement only says it will be arranged “based on market conditions.” This flexibility gives room for policy adjustment but increases planning difficulty for mills. Combined with the weekly floor price adjustment, mills must track both domestic and international spot prices closely to time their bids optimally.
Cotton textile clusters in Xinjiang, Shandong, and Jiangsu will feel the impact most directly. Small and medium-sized mills that rely on external cotton purchases have historically used reserve auctions to stabilize raw material costs; now they face weekly price volatility and strict usage audits. For large mills, self-use restrictions are less problematic, but they need to re-evaluate the cost competitiveness of reserve cotton versus other channels such as imported cotton or Xinjiang cotton.