Orosur Mining, a South America-focused mineral exploration company, has reported major advances in its drilling work at the Anzá gold exploration project in Colombia and the El Pantano gold/silver exploration project in Argentina. At Anzá the company is advancing towards a NI43-101-compliant mineral resource estimate (MRE) for the Pepas prospect, with completion targeted for January 2026. Meanwhile, at El Pantano, the company has confirmed the presence of a low-sulfidation epithermal mineral system, and ...