Marcio Fonseca, president and COO of Mexico-focused explorer GR Silver Mining, spoke with Northern Miner Staff Writer Henry Lazenby at AME BC Roundup in January. They discuss the company’s recent discovery at its San Marcial property, where drilling returned 100 metres of 300 grams silver per tonne, and the upcoming resource update for its Plomosas project in Sinaloa state.
Exclusive AME Roundup video: GR Silver Mining’s Marcio Fonseca
Marcio Fonseca, president and COO of GR Silver Mining at the AME Roundup convention in Vancouver in January 2023.
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