Falling freight rates, rising Chinese alumina prices open import arb window

The recent drop in freight rates and rising Chinese alumina prices have reportedly opened the arbitrage window for imports from Australia to restart, sources told Fastmarkets

The arb window has been closed to buyers in China for some months after Australian alumina prices ticked higher making imports unviable.

Fastmarkets calculated its benchmark alumina index, fob Australia at $312.47 per tonne on Tuesday December 6, having remained rangebound at $310-per-tonne levels throughout November and into December.

Supported also by currency changes from the stronger yuan and weaker United States dollar, some estimated that Australia-to-China freight could now be at around $26-30 per tonne, down from $45 per tonne previously.

The US dollar index has settled at around 106 in recent days, down from a high of 113 in November.

Meanwhile, domestic alumina prices in China have moved upward amid maintenance, environmental closures and restocking activity.

Fastmarkets’ most recent price assessment for alumina metallurgical grade, exw China was 2,750-2,900 yuan ($395-416) per tonne on December 1, up from 2,600-2,800 yuan per tonne on November 17 and from 2,650-2,750 yuan per tonne at the start of the November.

Market participants previously believed alumina prices would need to reach $290-300 per tonne FOB Australia for the arb window to open, which is below current index levels. But with the effect of falling freight rates and the changing domestic situation in China, this is believed to have risen above $300 per tonne to current index levels.

The market will be watching closely for the first spot cargoes to be traded into China to confirm the opening of the arb window.

The lower freight rates were also cited as a factor in the recent drop in the Atlantic premium.

Fastmarkets’ fortnightly alumina index adjustment to fob Australia index, Brazil was calculated at $23.88 per dry metric tonne (dmt) on December 1, little changed from $22.79 per dmt on November 17, but down from $27.68 per dmt on November 3.

“The shipping market is on a slippery slope, which could see the freight difference narrowing further,” one alumina market participant told Fastmarkets.

Other factors included increased shipments out of Jamaica-based alumina producer Jamalco, and higher tonnages available out of Brazil, which eased some of the tightness in the Atlantic region.

A second market participant said freight rates on some routes had fallen by more than $20 per tonne over the past quarter, further supporting the reduction in the premium.

What to read next
The European steel and aluminium scrap industries urged the European Commission on Wednesday January 15 against taking action to curb scrap exports after domestic industry metals producers backed measures to do just that.
Renewed US-China trade tensions with Donald Trump’s second presidential term could bolster Southeast Asia’s aluminium scrap industry in 2025, particularly amid still-growing Chinese demand, sources told Fastmarkets by Tuesday, January 14.
European steel and aluminium producers have urged the European Commission to take immediate and effective action to tackle "scrap leakage" so that the European Union can meet its sustainable development aims and secure industrial competitiveness.
Markets will be required to pay a premium for green alumina soon because of producer Alunorte’s developments in terms of decarbonization and sustainability, Carlos Neves, vice president of operations at Hydro Bauxite and Alumina, said in an interview with Fastmarkets on Tuesday January 7.
Fastmarkets is inviting feedback on the pricing methodology for aluminium primary foundry alloy silicon 7 ingot premium, ddp Germany and ddp Eastern Europe ahead of the definitive period of the EU’s Carbon Border Adjustment Mechanism (CBAM), which starts in January 2026.
European imports of pipeline natural gas from Russia via Ukraine have ended, putting the region’s metals smelters and refineries on alert for potential hikes in operational costs.