Mumbai, Feb. 25 -- The International Copper Study Group (ICSG) has released preliminary data for December world copper supply and demand in its February 2026 Copper Bulletin yesterday. It noted that world copper mine production increased by about 1% in 2025, with concentrate production remaining essentially unchanged and solvent extraction-electrowinning (SX-EW) growing by 3 %. In 2025, global mine production benefited from additional output from projects ramping up to capacity and an improvement in production at a number of operating mines. However, lower grades and incidents at some major copper mines, including Kamoa (May) and Grasberg (September), significantly constrained global growth. Output in Chile declined by 1.6% as higher output...