First Majestic Silver precious metals output lower as grades sag

Mexico-focused precious metals miner First Majestic Silver has reported 4% lower first-quarter silver output as grades at all five of its active mines decreased by 13%. The Vancouver-based miner reported total silver output for the three months ended March 31 of 2.78-million ounces of silver, compared with 2.9-million ounces produced in the same quarter in 2014.