Great Boulder Resources Ltd (ASX:GBR) managing director Stefan Murphy speaks to Proactive Investors about the latest developments at its flagship Mt Venn copper-nickel-cobalt project, and Eastern Mafic Complex early-stage exploration play.
The first results from a recent drilling program at Mount Venn were released to market this week. "All the drilling remains open along strike, and down and up dip, so we're very excited and we're continuing to show that it's a very very large discovery," says Murphy.
Promising metallurgical test results have also been announced. Murphy explains, "what we have is a unique project, so we're looking to produce a copper concentrate as well as a nickel and cobalt sulphide product. So one of the key questions has been our ability to leach the sulphide to produce those nickel and cobalt sulphate products, and really that's going into the battery market. What we've seen is we're getting great extraction rates that are over 90%. We're looking at atmospheric leaching as well as a low-pressure oxidation technique. Both techniques worked really well, so we're very encouraged by that."
At the earlier-stage Eastern Mafic Complex project, initial ground EM results are validating the findings of an airborne EM study flown earlier this year. A maiden drilling program there is forecast for late June or early July.