Sept 24 (Reuters) - Copper prices on the London Metal Exchange jumped by more than 3% to their highest in more than 15 months on Wednesday after Freeport-McMoran Inc FCX.N declared force majeure at its Grasberg mine in Indonesia.
Benchmark three-month copper rose 3.6% to $10,330 a ton, the highest since May 30, 2024, after Freeport's announcement, which said a phased restart at Grasberg may only occur in the first half of 2026 following a deadly landslide earlier this month.