On September 1, the PET filament market witnessed a dramatic reversal: the average sales-to-production ratio of sample enterprises fell to 39.8%, a sharp drop of 43 percentage points from the previous trading day's close. Just the day before, some manufacturers had seen ratios surge to 300%-400%. This stark contrast reflects the delicate tension between price expectations and real demand in the chemical fiber supply chain.
Event Background
The sales-to-production ratio is a core indicator of market activity in PET filament. A level of 39.8% implies that over 60% of the day's output failed to convert into actual sales. Significantly, the previous day's high ratio was not driven by natural demand but by a pulse of promotional selling at the end of the session. Today's breakdown shows most sample enterprises reporting ratios between 15% and 40%, with only a few reaching 80%-150%, indicating a clear loss of overall market momentum.
Such volatility is not an isolated event. As an intermediate product in the polyester chain, PET filament's sales trends often lead price adjustments. Yesterday's high ratio reflected manufacturers' strategic efforts to destock and recover cash through promotions; today's price hikes represent an attempt to reclaim concession margins. However, downstream users quickly showed resistance to higher prices, and inquiry activity cooled, suggesting that the market's ability to absorb consecutive price increases is limited.
Industry Impact
The sharp drop in the sales ratio has ripple effects across the supply chain. For upstream polyester plants, a lower ratio means renewed inventory pressure; if destocking fails in the coming days, they may be forced to adjust operating rates or reintroduce promotions. For downstream weaving mills, yesterday's concentrated restocking has partly overdrawn demand. Today's wait-and-see stance amid price hikes is rational—but if raw material prices remain firm, they may face rising cost pressure.
From a broader industry perspective, the PET filament market is in a typical bargaining phase. Manufacturers attempt to repair margins through price adjustments, while downstream buyers dictate their purchasing pace based on order books and inventory levels. Such tug-of-war is common before the traditional peak season, but the extreme daily swing (over 40 percentage points) suggests fragile market sentiment, where any minor trigger could cause chain reactions. For buyers, this implies that price signals may be distorted in the short term, and chasing rallies or panic selling should be avoided.