Glencore Xstrata produces 18 pct more copper in Q1

Glencore Xstrata (LON:GLEN) copper production was up 18% over last year's Q1. The newly-merged company released its IMS& First Quarter 2013 Production Report on May 13. The company's stock was up 1.45% to GBX348.90 (US$536.12). The company highlighted that its own...