21% — that is not a seasonal blip but the average daily operating rate reported by China's polyester filament sample mills in early September, down 4.8 percentage points from the previous session. More alarming is the divergence among sampled plants: some recorded zero sales, while the best performers barely reached 40%. When the operating rate stays below 60% for an extended period, the inventory inflection point at polyester plants is no longer a forecast — it is happening.
Background
The operating rate is the most sensitive thermometer for the polyester chain. It measures not output but the share of available goods actually sold on a given day. A reading of 21% means that for every five tons of filament produced, only slightly more than one ton found a buyer. Downstream weavers are not without demand; they are explicitly rejecting current price levels. Buying is limited to essential needs, resistance to high prices remains firm, and trading activity is thin.
This resistance is not emotional. Order visibility at the weaving end is shortening. Some mills report fewer new inquiries, and after delivering previously backlogged orders, production schedules show gaps. As terminal apparel and home textile customers push for lower prices and extend payment terms, weavers have little incentive to build raw material inventories. The firmer polyester plants hold their quotes, the more resolute downstream观望 becomes, creating a classic standoff.
Looking at industrial belt reactions, operating rates at major weaving clusters in Jiangsu and Zhejiang have shown signs of loosening. Texturing and weaving enterprises in Keqiao and Shengze, facing high and volatile raw material prices, prefer to draw down existing inventories rather than restock. This "sell-to-produce, produce-to-buy" strategy is transmitting pressure upward. If polyester plants maintain high utilization, inventory accumulation is inevitable.
Industry Impact
For polyester plants, persistently weak operating rates mean two things. First, inventory pressure is spreading from POY to FDY and DTY, with possible structural gluts in certain specifications. Second, cash flow pressure is mounting, especially for plants that purchased PTA and MEG at high prices earlier. If filament prices cannot pass through costs, processing spreads will be squeezed. Public industry data shows polyester margins are already thin; if the operating rate stays below the break-even line for long, the probability of production cuts and maintenance rises significantly.
For downstream weaving and trading, the short term is actually a relatively favorable window. Weak or even softening raw material prices give weavers a chance to lock in processing profits. But the fundamental problem is insufficient orders. If terminal demand does not improve, the cost dividend from cheaper raw materials will quickly be offset by falling finished goods prices. The real risk is not expensive raw materials but the absence of orders.
From an export perspective, overseas ordering patterns are also shifting. Some foreign trade firms report that European and American buyers prefer smaller, more frequent purchases to reduce inventory risk. This deepens order fragmentation at the weaving end and weakens the volume advantage in raw material procurement. Meanwhile, pricing pressure from Southeast Asian competitors persists, squeezing China's weaving share in mid-to-low-end markets.