International crude oil prices have fallen back to pre-war levels following the US-Iran peace deal, stripping away the cost support for the polyester chain overnight. But surprisingly, the cost collapse has not benefited the entire chain—midstream filament producers have not cut prices; instead, they have built a higher profit wall through production cuts. Downstream weavers are collectively waiting, refusing to place orders at what they consider an 'unreasonable' raw material price. A zero-sum game over volume, profit, and price is dragging the chain into a 'lose-lose-lose' prisoner's dilemma.
Abnormal price transmission after cost collapse
China Customs data show that PX and PTA underwent large-scale maintenance in July, further reducing operating rates. But after August, with the resumption of shipping in the Strait of Hormuz and the end of refinery maintenance, the raw material shortage will gradually ease. Logically, the weakening cost side should quickly transmit to the end market, but filament prices have been unusually resilient. Industry data show that current processing margins for filament are at historical highs, in stark contrast to the 'produce now, lose now' predicament of downstream weaving. This 'upstream eats meat, downstream burns its mouth on soup' pattern arises because filament producers have actively chosen to cut output to protect margins rather than cut prices to chase volume.
The zero-sum structure of three demands
The upstream raw material side most urgently wants filament producers to increase operating rates. Only when filament utilization rises will PTA demand recover, accelerating destocking and repairing the forward balance sheet. The most effective lever to boost filament utilization is promotional volume—if filament prices drop, downstream will restock, driving up transaction volume, easing filament inventory, and giving producers reason to raise rates. But filament producers see it differently: in past years, every time raw material prices fell, they cut prices to promote sales, only to see processing margins squeezed to nothing, becoming mere 'porters' for the upstream. Now they are determined to protect their profit floor—at 100% capacity, they earned 100 yuan per ton; at 70% capacity, they earn 500 yuan per ton. The math is clear.
Downstream weavers' logic is equally tough. Before the oil price collapse, they had long suffered from 'flour costing more than bread': upstream filament prices were high, but weaving orders could not raise prices, and producing from spot materials generally meant losses. Now that raw material costs have collapsed, downstream sees hope for relief, but the resilience of filament prices angers them. In their view, without reasonable raw material costs, taking orders means losing money. So they collectively wait for filament prices to 'catch down' to a reasonable level before buying.
The cost of stalemate and potential triggers
The three demands form a dead loop: filament producers won't cut prices, so downstream won't buy; without sales, filament inventory won't fall, making it impossible to raise operating rates; with filament rates low, upstream PTA can't sell, frustrating destocking goals. Currently, no party is willing to concede voluntarily, but the cost of stalemate is mounting. For filament producers, cutting output means losing market share to competitors; once downstream finds alternative supply sources, customer loyalty after restarting production will be damaged. For downstream weavers, prolonged shutdown or reduced production means losing orders to overseas competitors, especially as Southeast Asian capacity expands rapidly. For upstream PTA, if inventory continues to build, the supply recovery in August may trigger an even bigger price collapse.
History suggests such standoffs usually end when one party is forced to break. The trigger could be a large filament producer cutting prices to grab volume, a surge in end-user orders forcing restocking, or upstream PTA companies exerting pressure through contract terms. The key now is to watch filament inventory levels and market concentration—if the top producers maintain their output-cut consensus, the stalemate may persist; if a 'defector' emerges, a price war will quickly erode the profit wall.