US copper futures edged higher early Monday, with a firmer open on Wall Street helping to support the advance, but economic concerns and worries about overhanging supply in China, the world's top copper consumer, limited the move. Copper for July delivery firmed 2.25 cents to $2.04 a lb by 10:38 am EDT (1438 GMT) on the New York Mercantile Exchange's COMEX.
Morning range from $1.9790 to $2.0435. COMEX estimated futures volume at 8,247 lots by 10 am.