Nickel futures in London jumped on Wednesday after the world's biggest nickel mine in Indonesia was forced to drastically reduce output, in an effort to tighten global supply to lift prices of the critical battery metal. French miner Eramet, which operates Weda Bay Nickel alongside Tsingshan Holding Group, said Indonesian authorities have capped the mine's 2026 production at 12 million tons of nickel ore, a massive reduction from the 42 million ton quota set by Jakarta in 2025. Here is Eramet's statement from earlier: Eramet informs the market that its joint-venture PT Weda Bay Nickel ("PT WBN") has received ... (full story)