On September 3, the polyester filament market delivered a mixed picture: the average sales-to-output ratio among sample enterprises stood at only 25.8%, a sharp drop of 13.3 percentage points from the previous trading day. This figure implies that over 70% of capacity failed to convert into actual transactions, revealing a serious divergence between upstream and downstream on the current price system. Polymerization costs remained high, prompting factories to attempt passing on increases, while downstream weaving and trading segments resisted by holding back purchases, leading to a thin market and a standoff.
Background
The sales-to-output ratio is a core leading indicator of activity in the polyester filament market. The 25.8% average is in the lower range of the year, and the month-over-month decline of more than 13 points signals clear marginal deterioration. The distribution across sample companies ranged from 0% to 90%, with most firms concentrated between 10% and 30%, and only a few reaching above 50%. This pattern indicates that demand has not vanished entirely but that purchasing pace has been significantly suppressed by high prices, with orders mostly for immediate needs and speculative stockpiling nearly absent.
Cost pressure is the trigger for the standoff. Upstream raw material prices remained firm, keeping polymerization costs high and squeezing margins for polyester filament producers. Theoretically, cost-push logic is clear, but downstream users' growing resistance to successive price hikes has blocked transmission. This temperature difference—hot upstream, cold downstream—is essentially a redistribution battle over industry chain profits. When consumer prices for end products cannot rise easily, the room for midstream chemical fiber price increases is naturally limited.
Industry Impact
The plunge in the sales-to-output ratio directly raises the risk of inventory accumulation for polyester plants. If the ratio does not recover quickly in the coming days, factories may face higher stocks and be forced to offer discounts, breaking the current price balance. For traders, this means narrower short-term speculative opportunities and more difficult quick-turn operations, requiring cautious position management. For downstream weaving enterprises—especially in concentrated consumption areas like Shengze, Changxing, and Xiuzhou—the current wait-and-see strategy may help pressure prices in the short term, but they must also be alert to potential supply tightness if upstream producers cut output due to cost pressures.
Notably, some sample enterprises still achieved ratios of 70%–90%, indicating the market is not monolithic. Differentiated products, high value-added specifications, and companies with stable end-user orders can maintain better shipment momentum. This suggests that product mix and customer loyalty become key variables in resisting risk when broad price increases are blocked. Moreover, September is traditionally regarded as the start of the 'Golden September' peak season, but current data does little to support that expectation. If terminal textile orders do not show clear volume growth in the next two weeks, polyester filament prices may shift from 'cost-driven increases' to 'demand-constrained fluctuations.'