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Aluminum reaches a four-year high amid renewed supply concerns from the Iran war

Aluminum prices jumped on Monday to their highest level in four years?after Washington announced it would impose an Iranian maritime blockade, reviving concerns about a weaker supply of the metal from the top producers in?the Gulf.

Benchmark -three-month aluminum on the London Metal Exchange rose 1.7% by 0930 GMT to $3,558 per metric ton after reaching $3,578, which was its highest level since March 31, 2020. After the weekend's failed peace talks, the U.S. Military announced that it would begin a blocking of all maritime traffic into and out of Iranian ports and coastal zones?on January 14th at 1400 GMT.

Neil Welsh, Britannia Global Markets' head of metals, wrote in a note that "Aluminium is at the centre of the market this week after a sharp rise... as traders digest the implications of the full 'naval blockade of the Strait Of Hormuz." Before the 'U.S. and Israeli attacks on Iran,' around 9% of world aluminium was produced in the Gulf region. Several smelters, including Emirates Global Aluminium, have been affected. EGA announced earlier this month it could take up to one year to fully restore production at its Al Taweelah Smelter. This smelter produced 1.6 millions tons of cast iron in 2025.

The premium for the LME cash contract on the three-month forward was a reflection of supply concerns The price of copper on the LME rose by only 0.3% to $12,885 per ton. This is the highest level since February 2007. LME copper prices were mediocre, with a 0.3% increase to $12,885 per ton. Investors weighed the negative impact of higher oil prices on the economy and metals demand.

Welsh stated that "Copper struggles to gain ground, as the market weighs a drag on demand due to high energy prices and a deteriorating global backdrop."

China, the world's largest consumer of red metal, has seen a rise in demand.

Yangshan Copper Premium The price of, which measures China's appetite to import the metal, has risen to $74 per ton. This is the highest since June 2025, and a 76% increase in one week.

Other metals include LME zinc, which fell 0.3% to $3323, nickel, which rose 2.2% to $17.615, and lead, up 0.1% at $1.923. Tin was not much changed, remaining unchanged at $48,000. Harikrishnan Nair, Harikrishnan Onstad (Reporting)

(source: Reuters)