BRIEF-Amerigo says Q4-2017, Minera Valle Central Produced 15.6 Mln Pounds Of Copper At Cash Cost Of $1.66 Per Pound By: Reuters: Company News January 16, 2018 at 07:41 AM EST * AMERIGO ANNOUNCES ANNUAL 2017 AND Q4-2017 PRODUCTION RESULTS Read More >> Related Stocks: Amerigo Resources Ltd