Group 1 - LME copper prices slightly increased, maintaining above $11,000 per ton, driven by Monday's gains and awaiting the Federal Reserve's interest rate decision [1][4] - As of October 28, LME three-month copper closed at $11,038.50, up $9.50 or 0.09% [2] - LME copper inventory reached 134,575 tons, the lowest since the end of July, indicating a tight supply situation [4] Group 2 - Grupo Mexico reported a 2.6% year-on-year decline in copper production for Q3, totaling 798,394 tons [5] - LME three-month aluminum closed at $2,889.00, up $14.50 or 0.5%, influenced by high electricity costs affecting Rio Tinto's operations in Australia [5]