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Japan Q2 aluminium prices hit an 11-year high due to Mideast supply concerns

Four sources said that the Middle East conflict had tightened the supply of aluminium. As a result, Japanese aluminium buyers paid a premium between $350 and $353 per metric ton, the highest in 11 years.

Japan is the largest Asian importer and the premiums it pays for metals shipped each quarter above the London Metal Exchange cash price (LME) serve as a regional benchmark.

The new rate is 79%-81% higher than the $195 premium paid during the January-March period. This marks the second consecutive quarterly increase, and the highest level since April-June 2015.

Global producers offered Japanese buyers a premium of $220 to $250 per ton in late February. This was up by 13% to 28% from the previous quarter. However, they later retracted or let the offer expire as they assessed the risks of cargoes passing through the Strait of Hormuz after the U.S. & israel attacked Iran on 28 February.

In mid-March, one producer increased its offer from $350 to $350 per tonne and the buyers accepted. Sources say that another producer wanted to raise the price, but both parties settled on $353 per ton.

A source from a Japanese rolling-mill said that, "We had no choice but to accept the high prices due to the possibility of disruptions in supply coming from the region" because the conflict was expected to continue.

If the strait is closed, Middle Eastern smelters may struggle to obtain raw materials. Production could be affected. He said that we had to compromise quickly, as prices would rise if we waited any longer.

Due to the sensitive nature of the issue, the sources refused to identify themselves.

The Middle East is responsible for around 9%?of?global aluminum supply. And the war has shook the market,?effectively freezing the shipments through this strait.

Aluminium Bahrain, one of the largest smelters in the world, declared force majeure over shipments earlier this month. Meanwhile, Qatari smelter Qatalum began shutting down its production.

In 2025, Japan imported from the Middle East nearly 30% of its total aluminium ingots (primary and alloy), including primary ingots.

Last month, the quarterly negotiations between Japanese miners and global buyers including Rio Tinto Ltd. and South32 started.

(source: Reuters)