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Copper prices rise on signs of tightening supply

The London Metal Exchange's system showed signs of tightening supply, which helped to support the copper prices on Wednesday. However, ongoing U.S. - China trade tensions kept this growth-dependent metal at a narrow range.

The benchmark three-month copper price on the LME rose 0.5% to $9,639 per metric tonne by 0950 GMT after reaching a two-week-high of $9,655.

Copper used in construction and power is up 5.7% this month, as global trade tensions have eased since April, when U.S. president Donald Trump announced reciprocal duties.

Stocks in LME registered warehouses are decreasing, which is helping to support the metal. The lowest level in nearly a year, with a drop of 43% from mid-February.

Spread between cash LME and three-month copper contracts Last week, was at a premium price of $40 per ton compared to $3 a few weeks ago. This indicates a tighter supply in the near future.

Washington continues to investigate whether it should impose new tariffs on copper imports. This will keep the premium for COMEX copper over the LME benchmark high and encourage more metal into COMEX owned warehouses. .

BNP Paribas analysts said that if a tariff was applied, it would stop the incentive for copper to be moved to the U.S. This, they believe, will lead to more physical flows into the LME and a price downturn.

It added: "If there's no tariff, or if the tariff rate is much lower than expected, we think CME will crash with negative effects on LME."

BNP Paribas anticipates that the average LME price of copper will be $8,610 during the third quarter, before rising to $9,180 for the fourth quarter.

According to the International Copper Study Group, from the perspective of global supply the copper market had a surplus in January-March of 289,000 tonnes compared to 268,000 tons one year prior.

Aluminium and zinc, among other LME metals rose 0.1%, to $2,485.50 per ton and to $2,707 respectively. Lead fell 0.3% to $1979, while tin dropped 2.0% to $30,870, and nickel fell by 1.7% to 15,150. (Reporting and editing by Jan Harvey; Polina Devtt)

(source: Reuters)