Mumbai, Oct. 26 -- The International Copper Study Group (ICSG) released preliminary data on world copper supply and demand for August in its October 2026 Copper Bulletin. Preliminary data indicates that world copper mine production declined by 0.9% in the first 8 months of 2026, with a decline in concentrate production of 1.9% more than offsetting an increase in solvent extraction-electrowinning (SX-EW) of 2.7%. Chilean mine production declined by 7% mainly as a result of reduced output at El Teniente, Escondida and Spence mines. Chilean concentrate production was down by 9.3% and SX-EW output was up by 0.5%.world refined copper production grew by about 1.7% in the first 8 months of 2026, with primary production (electrolytic and electrowin...