On August 31, trading sentiment in the polyester filament market heated up abruptly. According to industry public data, the average sales-supply ratio of sampled enterprises jumped to 82.8% from 34.7% the previous trading day, a single-day increase of 48.1 percentage points. This figure superficially points to concentrated downstream restocking, but a closer look at the data—ranging from 40% to 260% across enterprises—reveals that the recovery is not universal; it is a structural pulse driven by cost expectations.
Background
The sales-supply ratio is a core indicator measuring the ratio of daily sales to output; a ratio above 100% means enterprises are drawing down inventories. The direct driver of this jump is stronger cost-side pressure: after raw material prices rose, polyester filament manufacturers generally became reluctant to sell at low prices, with clear intentions to support prices. Downstream users, worried about further increases in procurement costs, adopted a small-batch restocking strategy to avoid financial strain from concentrated purchases.
Looking at the distribution of sales-supply ratios among sample enterprises, the highest reached 260%, the lowest was 40%, and the median was around 70%–80%. This divergence indicates that not all enterprises benefited equally: some specifications or brands still face weak demand, while others with lower inventories received excess orders. Notably, a 260% ratio may correspond to the concentrated delivery of earlier orders for a particular enterprise, rather than a surge in new demand.
Industrial Impact
The transmission of this sales recovery along the supply chain deserves attention. For polyester filament factories, the rebound helps alleviate inventory pressure, but if cost-side gains cannot be sustained, reluctance to sell may shift to accelerated shipments, which could suppress price recovery. For downstream weaving enterprises, current restocking is more out of fear of price increases than genuine strong demand. If terminal orders fail to improve in tandem, inventories will shift downstream, creating hidden pressure.
Historically, similar cost-driven restocking episodes tend to last 3–5 trading days before calming down. Whether this single-day jump can continue depends on two factors: first, whether raw material prices hold steady; second, whether weaving enterprises' own orders can support continued procurement. If driven purely by expectations, the ratio may fall back to the 50%–60% normal range next week.
Practical Recommendations
For Procurement Teams - Stagger purchases to avoid chasing highs: current prices are supported by costs, but the demand base is fragile; consider splitting orders into 2–3 batches based on actual needs to reduce risk. - Monitor raw material trends: keep an eye on PTA and MEG prices; if cost-side support weakens, slow down purchasing and wait for better prices. - Strengthen supplier communication: prioritize enterprises with stable sales-supply ratios above 80%, as they offer better supply security.
For Manufacturers - Balance production and sales rhythm: use the rebound period to moderately destock, but avoid losing orders due to over-reluctance; balance volume and price. - Differentiate pricing: for specifications with sluggish sales ratios, consider slight discounts to attract orders and prevent inventory buildup. - Hedge raw material costs: use futures instruments to hedge against raw material price fluctuations, preventing margin erosion from volatile cost swings.
In summary, the August 31 sales-supply ratio jump is the result of cost expectations and restocking sentiment resonating, but structural divergence warns that the market foundation is not yet solid. All parties in the supply chain should remain rational, avoid being misled by short-term data, and formulate strategies based on their own orders and inventory levels. Textile Circle will continue to track production and sales changes to provide timely industry insights.