In a press release, the Vancouver-based miner said the Valeriano concessions overlie a large copper-gold-molybdenum-bearing porphyry system which has been only partially tested by three diamond drill holes completed in 2013 by Hochschild Mining.

According to Atex, historical information revealed that two of the drill holes intersected a potassic altered granodiorite porphyry including drill hole VAL13-14 which returned 1,194 metres grading 0.52% copper, 0.24 grams per tonne gold and 36 parts per million molybdenum.

“While prior operators focussed largely on the near-surface potential, it wasn’t until recently that the porphyry potential of the property was recognized,” Carl Hansen, Atex CEO, said in the media brief. “Deeper seated systems, such as Valeriano, represent the next stage in copper-gold porphyry mine development with major mining companies now exploring and developing bulk tonnage underground mines. We are eager to start a systematic exploration campaign with the goal of defining the full potential of the Valeriano copper-gold property.”

Hansen said that Atex has committed to invest $15 million on the project over a four-year term. At least 8,000 metres have to be drilled in the first two years.

The Canadian company also has to pay $12 million over four years in order to acquire 100% of the Valeriano concessions, currently owned by Sociedad Contractual Minera Valleno, an arm’s-length Chilean corporation.

Fonte: Mining.com