The world is not about to be swamped by copper, according to Citigroup Inc. Growth in supply will fall significantly short of demand through 2020, tempering the bearish sentiment that’s made copper the worst-performing metal this year. Global copper mine supply will be one-million metric tons a year higher by the end of the decade, Citigroup analysts including David Wilson said in an e-mailed note Tuesday. That’s less than the 1.6-million tons of demand growth that Citigroup predicts. The metal used in wires and cables has risen only 1.6% this year, much less than its peers on the London Metal Exchange, as mine supply increased in the first half.
