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LME copper premium flips for the first time in 19 Months on tariff concerns

Data showed that the expectation of U.S. copper tariffs has prompted a surge in material flowing to the United States. This has tightened supplies at the London Metal Exchange (LME), and triggered a dramatic move in an important spread.

The spread between cash LME copper and benchmark 3-month futures For the first time since 19 months, Friday saw a spike in prices.

Copper premiums, or backwardation as they are also called, have risen to $71 per metric ton. This is the highest premium seen since October 2022. Two days earlier, there was a discount of just $119.

Backwardation is a sign of shortages in the LME system.

The copper prices on the U.S. Comex have risen more than the LME, as investors try to factor in the potential tariffs imposed by U.S. president Donald Trump after he slapped duty this week on aluminum and steel.

Comex futures now trade more than $1,000 per ton higher than LME equivalent futures.

Dan Smith, the head of research for Amalgamated Metal Trading, said: "I believe that people are pulling metal out of LME to ship it to America and this is squeezing short-term supplies."

In less than three weeks, the copper inventories at warehouses certified by Comex more than doubled to 230.281 metric tonnes from 98.049 tons as of January 27.

(source: Reuters)