<div id="readability-page-1" class="page"><div> Copper prices firmed on Friday amid supply concerns after miner Capstone Copper and a local union said a strike forced a production halt at the company's Chilean Mantoverde mine. The most-traded copper on the Shanghai Futures Exchange rose 0.32% to 101,020 yuan ($14,507.49) a metric ton as of 0330 GMT, but was set to end the week down 1.15%.The benchmark three-month copper on the London Metal Exchange gained 1.01% to $12,884.50 a ton.The strike began after the mine's largest union and Capstone failed to reach a collective bargaining agreement, halting production at the mine, which was forecast to produce between 29,000 and 32,000 metric tons of copper cathodes in 2025.Meanwhile, copper miner Freeport-McMoRan said on Thursday that it expected about 85% of production at its flagship Grasberg mine, the world's second biggest copper mine, to be back online by the second half of this year.A deadly mud-flow killed several workers and shut the mine in October 2025, sparking supply fears and triggering a copper rally.Metal prices were also supported by a weaker U.S. dollar. The dollar index registered its biggest one-day fall in six weeks on Thursday, making greenback-denominated commodities cheaper for investors using other currencies.Anxieties over Greenland also faded after U.S. President Donald Trump walked back tariff threats against European goods and ruled out taking over Greenland by force.Elsewhere, tin and nickel led the gains on both the London and Shanghai exchanges. Indonesia's recent move to reduce 2026 nickel ore mining quotas, as well as a military-backed crackdown on illegal mining activities continued to unnerve the industry.The most-active tin on SHFE jumped 4.22% to 427,180 yuan a ton, and the Shanghai nickel climbed 3.17% to 146,840 yuan.The London benchmark tin rose 3.50% to $53,695 a ton, and nickel increased 2.86% to $18,510.Among other SHFE base metals, aluminium rose 0.85%, zinc added 0.92% and lead posted sole loss at 0.15%.LME aluminium added 0.21%, zinc rose 0.73% and lead was up 0.25%.Friday, January 23DATA/EVENTS (GMT)0700 UK Retail Sales MM, YY Dec0700 UK Retail Sales Ex-Fuel MM Dec0745 France Business Climate Mfg, Overall Jan0815 France HCOB Mfg, Svcs, Comp Flash PMIs Jan0830 Germany HCOB Mfg, Svcs, Comp Flash PMIs Jan0900 EU HCOB Mfg, Svcs, Comp Flash PMIs Jan0930 UK HCOB Mfg, Svcs, Comp Flash PMIs Jan1445 US S&amp;P Global Mfg, Svcs, Comp PMIs Flash Jan1500 US U Mich Sentiment Final Jan : : EU Consumer Confid. Flash Jan : : Japan JP BOJ Rate Decision 23 Jan($1 = 6.9633 Chinese yuan renminbi)</div></div>

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Copper prices rose on Friday due to supply concerns after a strike halted production at Capstone Copper's Mantoverde mine in Chile. The Shanghai Futures Exchange copper increased by 0.32% to 101,020 yuan, while the London Metal Exchange benchmark rose 1.01% to $12,884.50. The strike followed failed collective bargaining, impacting expected production. Additionally, Freeport-McMoRan anticipates resuming 85% of its Grasberg mine output. A weaker U.S. dollar also supported metal prices, alongside gains in tin and nickel amid industry uncertainties.

Copper climbs after strike shuts Chilean mine