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Copper jumps six months high on tight supplies and supply concerns

On Thursday, copper prices reached their highest level in six months as concerns over tightening supplies outside of the United States coincided with the reduced supply of concentrates from 'Democratic Republic of Congo.

Benchmark three-month Copper on the London Metal Exchange reached $14,275.50 per metric ton at 1005 GMT, up 1.2% from $14,369.5. This was the highest price since January 29, 2014, when it hit $14,527.5. Congo has banned the export of cobalt and copper concentrates as part of its efforts to "force domestic processing" and retain more value in their mineral resources.

This development increased concerns about supply, and added to the uncertainty of possible U.S. tariffs. It kept COMEX Copper above the LME benchmark, and attracted?metal to U.S. storage facilities. COMEX copper contracts hit a new record of $6.723/lb and traded at a premium to the LME contracts on Thursday as the market priced in the possibility of a U.S. tariff decision.

The COMEX contract for September was the most active, with a 1.3% increase at $6.817/lb ($15.029 per ton).

The premium on LME Cash Copper over the 3-month contract The spread widened to $130 per ton, which is the highest since October. This indicates tightening supply conditions in the near term. Total copper stocks registered at the LME are now 226,650 tonnes, the lowest level since mid-February.

StoneX estimates that at least 1.2 million tons of 'copper' have entered the U.S. from February 2025. This leaves about 64% global visible inventories within the country.

Nickel was down 2.2% on the LME at $16,735 per tonne, after hitting its lowest level since July 13, at $16,565 following a report by Chinese market information hub SMM that one of Indonesia's miners received an additional quota to produce nickel ore.

LME aluminium increased by 0.4% to $3.253.50. Zinc rose 1.7% to $4,790. Lead gained 0.5% at $1,894.50. Tin edged up by 0.1% to $56,515. (Reporting and editing by Kirsty Donovan; Additional reporting by Dylan Duan)

(source: Reuters)