As 2026 reaches its midpoint, the polyester industry's traditional peak seasons have faded, and the market is locked in a rare stalemate. Morgan Stanley has revised its Brent crude forecast downward twice in two weeks, settling on an average of $75/barrel for Q3 and Q4. This signal fundamentally alters the game between upstream and downstream players in the polyester chain—the era of cost-driven price surges is over, but demand-side weakness makes any rebound fragile.
Cost Anchor Shifts Downward, Polyester Loses Its Price Engine
Following the reopening of the Strait of Hormuz, oil tankers stranded in the Persian Gulf are gradually departing, providing short-term relief from the Middle East energy crisis. Morgan Stanley's assessment is not isolated; market focus has shifted from geopolitical risks back to global oversupply. For the polyester industry, this means a sharp reduction in cost pressure for polyester filament yarn—the wild price surges of early March, which forced downstream mills to follow, are unlikely to recur in the near term.
However, this cost-side 'cooling' has not triggered downstream enthusiasm. On June 29, polyester plants launched major promotions, but daily sales reached only about 70% of capacity, dropping to around 30% the next day. Compared to previous promotions that, while short-lived, at least achieved full capacity sales, the current market is clearly experiencing 'promotion fatigue.' Weaving mills show little response to price cuts, making only small replenishments at low prices with no intention of large-scale stockpiling.
High Inventory Pressure, Polyester Plants Face a Dilemma
Polyester plants are caught between profit margins and inventory levels. Inventory days for POY, FDY, and DTY have reached 30, 35.7, and 41.8 days respectively, and continue to accumulate. The high cost of raw material inventory limits the room for price cuts, but the reality is harsh: if downstream mills remain unresponsive, prices will either drift lower or require a more aggressive clearance sale.
More critically, downstream weaving mills have become extremely rational—they refuse to run machines without confirmed orders. After two years of squeezed profits, their operational flexibility is severely limited, and the price elasticity of fabric is equally low. The breakeven point between existing inventory and new orders remains under negotiation, meaning that even deeper discounts from polyester plants may not translate into substantial demand.
Low Inventory Structure: The Hidden Opportunity for H2
Despite the prevailing pessimism, a structural opportunity is brewing. Because both upstream and downstream have maintained cautious stockpiling, first-half capacity has been relatively limited, leaving overall market inventory lower than in the past two years. If demand picks up in the second half—for instance, when summer sun-protection clothing finally arrives after delayed hot weather, or when a new 'explosive' fabric category emerges like the 'New Chinese Style' last year—a supply-demand mismatch could develop in the short term, restoring price elasticity in fabrics.
This low-inventory structure means that the trigger for a market rally will not be cost-push but demand-pull. Polyester plants should focus not on how high oil prices can go, but on when downstream mills will receive enough orders to restart their looms.