On July 15, the polyester filament yarn market sent a clear signal: the average sales-to-production ratio among sample enterprises stood at just 42.3%, a sharp drop of 24.7 percentage points from the previous trading day. This figure not only falls below the industry's commonly expected 50% threshold but also marks the largest single-day decline in recent memory.
Data Interpretation: What the Plunge in Sales Ratio Means
The sales-to-production ratio is a core indicator of supply-demand balance in the chemical fiber industry. A ratio of 42.3% means that for every 100 tons of polyester filament yarn produced, only 42.3 tons were purchased by downstream weaving mills, with the remainder directly adding to inventory. Public data from sample enterprises reveals an extremely uneven distribution: some companies achieved ratios of 160% or even 100%, indicating localized order support, but most were stuck in the 20%-40% range, with a few reporting zero sales. This 'ice and fire' dichotomy reflects not a market collapse but intensifying divergence—leading companies with competitive pricing or service advantages can still move product, while less competitive small and medium enterprises face mounting inventory.
Notably, a single-day drop of 24.7 percentage points is historically rare. Typically, fluctuations within 10 points are considered normal; a move exceeding 20 points often signals a sudden demand contraction or a shift in supply expectations. This sharp decline is likely driven by a concentrated release of bearish price expectations among downstream users.
Industrial Transmission: From 'Buy on Rising' to 'Sell on Falling'
Downstream from polyester filament yarn are mainly weaving and texturing mills, whose purchasing behavior is heavily influenced by price expectations. July is traditionally an off-season for textiles, with terminal garment orders entering a lull and weaving machine operating rates generally falling to around 60%. Meanwhile, upstream raw material prices for PTA and MEG have been weakening recently, further eroding cost support and reinforcing downstream wait-and-see sentiment.
Industry data shows that current social inventory of polyester filament yarn has climbed to 25-30 days, a high for the year. High inventory combined with low sales ratio puts mills in a dilemma: cutting prices to stimulate sales could further depress market expectations and trigger stronger wait-and-see behavior; holding prices steady would allow inventory to accumulate as operating rates persist, eventually forcing production cuts. The fact that a few enterprises achieved above-par sales on July 15 suggests that a 'price-cut-for-volume' strategy works in localized markets, but most players are waiting for clearer signals.
For weaving mills, the core contradiction is clear: raw material inventories are low, creating objective restocking demand, but pessimistic price expectations make them willing to risk supply disruptions rather than bottom-fishing during a downtrend. This 'the more it falls, the less they buy' mentality is driving the market toward a cyclical trough.
Price Outlook: Short-Term Pressure, Medium-Term Support
From the cost side, crude oil prices are fluctuating around $80/barrel, and processing margins for PX and PTA have been compressed to relatively low levels, limiting further downside. This provides a floor for polyester filament yarn prices unless crude oil experiences a systemic crash.
On the demand side, while the July off-season effect is clear, the stockpiling cycle for the 'Golden September and Silver October' typically begins in mid-August. The current low sales ratio may be front-loading off-season pressure, setting the stage for a rebound. Historical patterns suggest that extreme sales ratios below 40% rarely persist for more than two weeks; once downstream inventories are depleted to a critical point, restocking demand could trigger a rapid price recovery.
Practical Recommendations
For Buyers - During this price negotiation window, adopt a phased, small-lot restocking strategy to avoid inventory depreciation from a single large purchase. - Watch for sales ratio recovery signals: if the ratio rebounds above 60% for three consecutive days, consider it a demand bottom and gradually increase purchasing. - Prioritize partnerships with enterprises whose sales ratios consistently exceed the industry average, as they typically have stronger cost and channel advantages for price stability.
For Chemical Fiber Mills - Consider reducing operating rates to below 80% to control inventory growth and avoid cash flow strain from passive stockpiling. - Offer tiered discounts or extended payment terms to key accounts to lock in essential demand and maintain cash flow. - Use the low-sales period for equipment maintenance or product mix adjustments, preparing capacity for the peak season.
Overall, the July 15 sales data is not an isolated event but the result of a confluence of off-season cycle, inventory pressure, and expectation gaming. For all parties in the supply chain, the near-term strategic focus should be on risk control and cash preservation, awaiting the demand window expected in mid-to-late August.