On August 28, the polyester filament market hit a freezing point, with sample enterprises' average sales-to-output ratio at only 34.7%. Although this was 5.3 percentage points higher than the previous trading day's close, the figure remains at a historically low level. More notably, downstream buyers' resistance to high-priced raw materials has not subsided, with sluggish inquiries and sparse transactions, locking the market into a typical 'high-low' deadlock.
What the Numbers Really Mean
A 34.7% sales-to-output ratio implies that for every 100 tons of polyester filament produced, only about 35 tons translate into actual sales, while the remaining 65 tons become inventory or await sale. Company-level data show extreme divergence, ranging from 0% to 500%, indicating significant differences in pricing power and customer stickiness across enterprises. High-ratio companies typically offer differentiated products (e.g., fine denier or functional yarns) or have long-term stable downstream orders, while low-ratio companies focus on commodity grades, facing intense competition and bearing the brunt of price stalemates. The industry-wide low ratio signals accumulating destocking pressure; if the deadlock persists, corporate cash flow and operating rates will face challenges.
The High-Price Deadlock: Cost Transmission vs. Demand Elasticity
The high polyester filament prices are directly driven by upstream raw material costs. PTA and MEG prices remain elevated, squeezing polyester plant processing margins and strengthening their resolve to hold prices. However, downstream weaving and garment enterprises generally adopt a 'produce-to-order' approach, purchasing only as needed, with some reducing operating rates to hedge against raw material risk. This vertical tug-of-war reflects poor cost transmission. Upstream costs rise rigidly, but terminal consumer demand has not recovered correspondingly, leaving polyester filament as the 'sandwich layer'—raising prices loses customers, cutting prices erodes profits. For buyers, the current timing is tricky: chasing high prices risks losses, while staying out risks missing the rally. Historically, such deadlocks break either by upstream raw material price declines or by a surge in downstream demand during peak seasons. With the traditional 'Golden September and Silver October' approaching, demand may improve marginally, but the strength remains uncertain.
Industrial Belt Reactions and Inventory Cycles
The low sales-to-output ratio is not an isolated phenomenon; it directly mirrors changes in operating rates and inventories across major polyester filament clusters such as Shengze, Changxing, and Xiaoshan. Some factories have begun proactive output cuts to relieve inventory pressure, while downstream weaving enterprises maintain just-in-time purchasing, keeping raw material stocks low. This 'upstream price support, downstream destocking' pattern essentially buys time—waiting for clear demand signals. However, if high inventories accumulate and price support fails, it could trigger panic selling and a price collapse. Conversely, if peak-season demand exceeds expectations, current low inventories could act as fuel for price increases.
Practical Recommendations
For Buyers - Closely monitor upstream PTA and MEG price trends; if raw material prices soften, consider postponing purchases to wait for price corrections. - Use industry sales-to-output data as a bargaining tool: when the ratio consistently stays below 50%, sellers' ability to hold prices weakens, allowing you to negotiate flexible payment or delivery terms. - For commodity grades, consider phased procurement to avoid locking in prices at once; for differentiated products, secure supply with suppliers in advance to ensure peak-season availability.
For Foreign Trade Enterprises - Include price adjustment clauses in export contracts to hedge against raw material price volatility. - Monitor RMB exchange rate and ocean freight trends to comprehensively assess procurement costs, avoiding decisions based on a single factor. - Leverage the current domestic price stalemate to actively explore emerging markets such as Southeast Asia and the Middle East, diversifying market risk and enhancing bargaining power.
In summary, the current stalemate in the polyester filament market is not only a short-term supply-demand game but also reveals structural contradictions in the industry. Under the dual pressure of costs and demand, both producers and downstream users need more refined inventory management and flexible operational strategies to navigate cyclical fluctuations.