SANTIAGO, Jan 31 (Reuters) - Copper output in Chile, the world's largest producer of the red metal, increased 14.3% year-on-year in December to 566,547 metric tons, the country's INE statistics agency said on Friday. Manufacturing production in the Andean nation was up 8.4% in the period from a year earlier, the agency added. Sign up here. https://www.reuters.com/markets/commodities/chiles-copper-output-jumps-december-2025-01-31/