Sierra Updates Bolivar Copper-silver Pea To Inc... | VERIFIED |

Sierra updates Bolivar copper-silver PEA to include iron ore

Sierra Metals has updated the Preliminary Economic Assessment (PEA) for its Bolivar copper-silver mine in Mexico, incorporating iron ore concentrate production to increase the after-tax NPV to US$361 million. The strategy aims to process tailings to produce 5.7 million tonnes of 62% iron concentrate annually, supporting a phased expansion to 10,000 tonnes per day. Read the full story at Mining.com . Sierra updates Bolivar copper-silver PEA to inc...