China's aluminum production is testing the government's 45-million-tonne annual capacity cap as smelters in Yunnan province benefit from improved hydroelectric power availability during the wet season. Utilization rates have climbed to 85%, near the effective operational ceiling.
The cap limits new capacity additions, meaning any incremental demand growth in China must be met by imports or secondary (recycled) aluminum. Chinese primary aluminum production grew just 2.1% year-on-year in May, the slowest pace in 12 months.
Elsewhere, Iran-linked disruptions to Red Sea shipping lanes continue to affect alumina supply chains. European smelters reliant on alumina shipments from Australia and Brazil face 2-3 week delivery delays as vessels reroute around the Cape of Good Hope.
Alumina prices have responded accordingly, with the Platts alumina index holding above $450/mt. Higher alumina costs compress smelter margins, particularly for European smelters that lack long-term supply contracts.
On the demand side, global aluminum consumption remains robust at 3% annual growth, led by automotive (lightweighting), construction (extrusions), and packaging sectors. LME stocks at 319,925 tonnes are adequate but trending lower.
Chinese production constraints and alumina logistics disruptions create a constructive backdrop for aluminum prices. Procure H1 2027 volumes now if you can secure LME+$200/mt or better. Secondary aluminum (A380) is a viable substitution play if primary premiums widen.