Calibre Mining Corp. is a Canada-based exploration-stage company engaged in the acquisition, advancement and development of precious and base metal assets, and mineral properties. The Company�s projects, The Calibre Borosi concessions, are located in west of the coastal town of Puerto Cabezas. The concessions cover 78,525 hectares. The Eastern Borosi Project hosts gold-silver resources in two deposits and a series of well-defined low sulphidation epithermal gold-silver targets. It focused its exploration of the Borosi Project on a range of targeted areas, which included Primavera Gold-Copper Discovery, Riscos de Oro Project, Rosita D Concession and Inferred Resource. The Primavera porphyry gold-copper discovery is located seven kilometers south of the Santa Rita mine in the Borosi Concessions of Northeast Nicaragua. Riscos de Oro prospect is located in the Eastern Epithermal Camp of the Borosi concessions and consists of gold-silver mineralization.