Canada's Taseko Mines said Friday it has produced its first copper from its Florence Copper production test facility in Arizona.Over the past three months, about 1.5 million mt of copper ore has been contacted with leach solution as part of the in-situ copper recovery project, the Vancouver-based company said in a statement. Copper concentrations in the solution recently have risen to levels that have allowed the plant, located between Phoenix and Tucson, to begin operations and produce copper, it added. "As expected, the initial leaching period has taken approximately three months and all results are in line with ... (full story)