December Copper futures fell for a third session, dropping to $6.3180 and testing the 200-day moving average. Prices found support from tight physical supply in China, with the Yangshan copper premium holding near a 10-year high, alongside lowered production forecasts from Chile. However, buyers remain cautious ahead of the U.S. midterm elections as investors weigh the potential impacts on taxes, tariffs, and government spending, as well as uncertainty surrounding U.S.-Iran relations.