Calibre Drilling Expands High Grade Blag Gold-Silver System, Eastern Borosi Project, Nicaragua Including 9.92 Metres Grading 5.36 g/t Gold and 194.6 g/t Silver

VANCOUVER, BRITISH COLUMBIA--(Marketwired - April 27, 2015) - Calibre Mining Corp. (TSX VENTURE:CXB) (the "Company" or "Calibre") is pleased to announce the second set of results from the 2015 drilling program on the Eastern Borosi gold-silver project (the "Project") which is being financed under an option agreement with IAMGOLD Corporation ("IAMGOLD").

Highlights

• Diamond drilling on the Blag gold-silver vein system continues to intersect high grade gold and silver mineralization including: 9.92 metres grading 5.36 g/t Gold and 194.6 g/t Silver, 5.85 metres grading 5.97 g/t Gold and 56.1 g/t Silver, 4.04 metres grading 1.79 g/t Gold and 77.2 g/t Silver, and 1.91 metres grading 5.36 g/t Gold and 127.8 g/t Silver.

• To date the 2015 drilling program has completed; 16 holes for 1622.6 metres at La Sorpresa (see Calibre News Release dated April 4, 2014), seven holes totaling 1,037.9 metres at Blag (results included here for the first four of seven drill holes), and one hole at Guapinol for 355.1 metres (results pending).

• The Blag gold-silver vein system is located three kilometres east of the Guapinol - La Sorpresa Trend and drilling of five holes in 2014 was successful in outlining high grade gold-silver mineralization including; 6.73 metres @ 4.11 g/t Gold and 235.9 g/t Silver.

President and CEO, Greg Smith stated: "We are very pleased that drilling on the Blag gold-silver vein system has returned the longest, highest grade gold-silver intercept returned to date from Blag in the 2014/2015 drilling programs. The 2015 drilling program has discovered additional high grade gold and silver mineralization and has now identified multiple veins within the Blag System. Drill hole BL15-009 (9.92 metres grading 5.36 g/t gold and 194.6 g/t silver) was a 100 metre step out down dip and we are encouraged with the continued high grades for both gold and silver encountered within the main structure."

Blag Zone Drill Results from 2015- Eastern Borosi Gold-Silver Project

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