Day: April 29, 2013

Sierra Metals announces pre-feasibility study to provide supporting details for the Bolivar Mine, Mexico (Revised)

Sierra Metals Inc. (previously Dia Bras Exploration) is pleased to provide this revised news release which includes additional supporting details on the pre-feasibility study completed by Gustavson Associates, LLC of Lakewood, Colorado, for its Bolivar copper-zinc-silver mine located in Chihuahua State, Mexico announced on April 17, 2013. The study, mine plan and reserve estimate are based on Gustavson’s work and mine plan.

Major Drilling Group International Inc. is one of the world’s largest drilling services companies primarily serving the mining industry. Established in 1980, Major Drilling has over 1,000 years of combined experience and expertise within its management team alone.

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Maza Drilling is a Mexican company established in 2007 in Mazatlán, Sinaloa. Our Canadian founder, Mr. Guy de Launiere, has over 20 years of international experience managing diverse drilling operations. Maza Drilling strives to compete at the highest levels in terms of recovery, effectiveness, efficiency, and affordability at every project while keeping at the forefront of technology to meet our customer’s needs in this demanding market.