UPDATE 1-Mexican miner Penoles' Q1 net profit drops 6.1 pct
May 02, 2012 at 12:19 PM EDT
MEXICO CITY, May 2 (Reuters) - Mexican mining company Industrias Penoles posted on Wednesday a 6.1 percent drop in first-quarter profit compared to the same quarter last year, on lower base metals prices and higher costs due to mine expansion.