Calibre Mining Corp. is a Canada-based exploration-stage company. The Company operates through the acquisition, exploration and development of natural resource properties located in Nicaragua segment. It focuses on precious and base metals. The Company is focused on the exploration in a prospective, but underexplored region of Mining Triangle in northeast Nicaragua, including the Borosi Concessions located approximately 280 kilometers northeast of the capital city of Managua and over 80 kilometers west of the coastal town of Puerto Cabezas. The Company has an option agreement for projects, including Eastern Borosi Gold-Silver Project, La Luz Project, Borosi Project and Rosita D Concession Project. The Company, through joint venture, holds interest in Primavera gold-copper porphyry project and Monte Carmelo Gold Project. It has control on over four areas in the Borosi Mining District, including Northern Siuna District, Rosita District, Carpatos District and the El Paste Concession.