Copper futures traded higher in early deals on Tuesday due to tight global supplies and anticipation that US President Donald Trump will expand tariffs to imports of refined metal, while a weaker dollar ahead of key US inflation data due this week also supported copper prices' up-move. US stock market was closed on Monday on account of the Labor Day holiday.
Copper futures for December delivery rose $0.1130 or 1.69% at $6.7955 a pound on the Comex metals division of New York Mercantile Exchange.