Port inventories have plunged from 975,000 tonnes to just 86,000 tonnes — a signal in itself that MEG supply chains are tightening passively rather than through demand-driven restocking. When stock levels fall to historic lows, price elasticity expands, but elasticity and sustainability are two very different things.
Cost Push and Supply Variables
International crude oil has staged a rally recently, with Brent touching $101.25 per barrel and NYMEX crude at $89.16 per barrel, both gaining more than 1%. The strength in oil directly lifts the cost center of the petrochemical complex, and MEG, as a key oil-based intermediate, has seen market sentiment warm accordingly. But whether cost pass-through can materialize depends on whether downstream players are willing to accept higher prices — that is the core question.
The supply side presents a mixed picture. The Middle East is a core MEG producing region, and the Strait of Hormuz handles a significant volume of chemical exports. Ongoing regional tensions are raising concerns about shipping disruptions. Risks of delayed shipments and blocked cargoes are escalating, and the market broadly expects import volumes to remain low in the fourth quarter. This means domestic spot prices gain near-term support from the supply side.
But the import shortfall is not irreplaceable. Domestic MEG plant operating rates remain at a relatively high 65.92%, with coal-based units running at around 71% driven by favorable margins. More importantly, two large plants — China Saudi Gulei and Huajin Aramco — are scheduled to come onstream in Q4, giving domestic supply considerable incremental flexibility. The concentrated release of domestic cargoes will partially offset the bullish effect of reduced imports and cap price upside.
Demand Remains the Real Bottleneck
The performance of the downstream polyester sector is the key variable determining whether MEG's rally can be sustained. The fourth quarter marks the transition window between peak and off-peak seasons for polyester, with the traditional "Golden September, Silver October" peak gradually winding down and terminal textile orders losing momentum. Facing elevated MEG feedstock costs, polyester plants are under mounting cost pressure. Downstream resistance to high-priced raw materials is strong, with procurement largely limited to just-in-time buying and little appetite for large-scale stockpiling.
Weaving orders remain weak, and finished goods inventory destocking is under pressure, making it difficult for the chain to pass through raw material price increases. More critically, tight PX supply in Q4 is forcing some polyester producers to cut operating rates. Once polyester output declines, it directly reduces MEG consumption. Even if MEG supply contracts temporarily, without a substantive recovery in terminal textile consumption, polyester producers cannot sustain high feedstock costs for long and may further reduce output or conduct maintenance — which in turn drags on MEG demand.
From a supply chain transmission perspective, MEG's current rally relies more on short-term supply-side disruptions than on genuine demand improvement. This structure limits the upside and makes prices vulnerable to sentiment reversals. For traders, spot premiums may persist in a low-inventory environment, but the risk of chasing highs is accumulating. For polyester plants, if the scissors gap between feedstock costs and product prices continues to widen, output cuts will become unavoidable.
Key Variables for the Q4 Outlook
In summary, rising oil prices, geopolitical disruptions and low port inventories provide short-term support for MEG, giving prices a foundation for range-bound strength. But supply-side bullish factors alone are unlikely to drive a sustained one-way rally. The extent of any further upside depends on two key variables: first, the evolution of Middle East shipping conditions and the pace of new domestic plant start-ups; second, whether terminal textile orders can improve and whether the polyester sector can maintain stable operations.
If downstream demand fails to materialize, negative feedback pressure across the supply chain will gradually emerge, and MEG's upside will be significantly compressed. Market participants should closely monitor polyester operating rates, weaving order days and marginal changes in port inventories — these indicators will reveal MEG's true direction better than oil prices alone.