The price curve of cotton yarn 21S is drawing a steep upward line. On September 9, the industry benchmark price settled at 23,700 CNY/ton, up 1.43% from the beginning of the month, while touching the highest point of the past year's price range. More notably, this level has triggered the industry's two-year overbought warning line—the last time such a signal appeared was during a period of sharp raw material market fluctuations.
What the Price Position Indicates
Extending the timeline to a full annual cycle, the signal of the current price becomes clearer. From September 2025 to September 2026, the lowest price of cotton yarn 21S was 21,900 CNY/ton, and the highest is the current 23,700 CNY/ton, a spread of 1,800 CNY, with the median at 22,800 CNY. In other words, the market has moved through an amplitude of nearly 8.2% over the year, and the current price sits at the upper edge of the range, already notably above the bottom.
This position means cost pressure is accumulating for buyers. Based on the annual average of 22,650.91 CNY/ton, the current price is about 4.6% above the average. If companies lock in raw materials at current prices, they compress future processing margins in advance. For spinning mills, this is both an opportunity to sell at favorable prices and an exposure to inventory devaluation risks.
Drivers Behind the Price Increase
This rise is not driven by a single factor. From the perspective of industrial chain transmission, fluctuations in upstream cotton prices amplify along the cotton yarn segment, and 21S, as a major mid-count yarn product, is often seen as a weathervane for textile intermediate goods. The current high level reflects both rigid cost support and market sentiment.
More critical is the coordination of downstream demand. If the increase remains only at the raw material end, and gray fabric or fabric orders do not follow, then high cotton yarn prices lack a sustainable foundation. Current industry public data shows that weaving mill operating rates remain relatively stable, but the strength of new orders is not yet sufficient to fully absorb raw material gains, implying a time lag between upstream and downstream.
For traders, this time lag creates operational space—they can seek arbitrage windows between cotton yarn spot prices and downstream purchase intentions, but only if their judgments are accurate; otherwise, they risk being forced to take delivery during a price correction.
Ripple Effects Across Industrial Clusters
Price signals are spreading to major textile clusters. In Shandong and Henan, key cotton yarn producing areas, some mills have begun to adjust quoting strategies, tentatively raising ex-factory prices, but actual transactions still leave room for negotiation. In weaving clusters in Jiangsu and Zhejiang, purchasing managers are clearly more cautious about high raw material prices, preferring order-based, hand-to-mouth procurement rather than large-scale stockpiling.
This divergence reflects differing bargaining power across the chain. Upstream cotton yarn enterprises often take the initiative in early price increases due to cost pass-through inertia; however, midstream weaving and downstream apparel companies face resistance in passing on costs, especially those with a high share of export orders, where exchange rate fluctuations and overseas customer price pressure further squeeze profit buffers.
From an inventory cycle perspective, current social inventories of cotton yarn are at a medium-to-high level, with no signs of shortage. Therefore, this round of price increases is more cost-push than demand-pull, and its sustainability depends on whether the cotton side can stabilize and whether terminal consumption gives positive feedback during the traditional peak season.