Rio Tinto in Nicaragua exploration deal with Calibre

Global miner Rio Tinto has entered into an agreement to earn up to 75% in TSX-listed Calibre Mining’s Borosi project, in north-east Nicaragua.

The project hosts gold/silver and copper/gold resources in two areas, as well as multiple lesser explored copper/gold skarns, low-sulphidation epithermal gold/silver vein systems and bulk tonnage copper/gold porphyry targets.

Further, Calibre and Rio Tinto also entered into a strategic exploration alliance agreement under which they will work together to identify and acquire exploration concessions in Nicaragua, with a focus on copper/gold porphyry, skarn and epithermal precious metal systems.