Calibre Mining Drilling Continues to Expand Gold-Silver Vein Systems at Eastern Borosi Project, Northeast Nicaragua

VANCOUVER, BRITISH COLUMBIA--(Marketwired - June 8, 2016) - Calibre Mining Corp. (TSX VENTURE:CXB) (the "Company" or "Calibre") is pleased to announce the first set of results from the 2016 drilling program on the Eastern Borosi Project, Nicaragua which is being funded by Calibre's partner IAMGOLD Corporation ("IAMGOLD").

Highlights

• Drilling to date in 2016 consists of 18 diamond drill holes for a total of 3,487.5 metres, with results received and reported here for the first 11 holes
• Diamond drilling of the Blag Gold-Silver Vein System has further extended the defined mineralization on two targets, including; Main Blag Structure and the East Dome
• Step out drilling on the East Dome has intersected 4.51 metres grading 1.82 g/t gold and 146.3 g/t silver including 1.56 metres grading 4.44 g/t gold and 142.9 g/t silver
• Step out drilling on the Main Blag Structure has intersected 4.64 metres grading 1.51 g/t gold and 38.1 g/t silver including 0.85 metres grading 7.10 g/t gold and 62.6 g/t silver
• Additional drilling in 2016 has tested extensions to the Guapinol and Vancouver Vein Structures, and first pass drilling on the Vein Swarm Target

President and CEO Greg Smith stated: "Drilling in 2016 at the Eastern Borosi Project continues to expand the gold-silver vein systems showing the robust nature of the mineralization. Drilling in 2016 has extended mineralization along strike and down dip at both the Main Blag and East Dome targets."

Recent Drill Highlights from Eastern Borosi Gold-Silver Project

Hole_ID	Target		From_m	To_m	Length (m)	Au (g/t)	Ag (g/t)
BL16-024	East Dome		211.60	216.11	4.51	1.82	146.3
BL16-024	East Dome	incl	214.55	216.11	1.56	4.44	142.9
BL16-025	East Dome		203.00	209.00	6.00	0.23	103.7
BL16-025	East Dome	incl	206.60	207.50	0.90	0.49	420.0
BL16-026	East Dome		122.37	133.47	11.10	0.01	23.6
BL16-027	East Dome		81.07	81.60	0.53	0.49	96.0
BL16-028	East Dome		166.22	169.27	3.05	0.14	63.4
BL16-029	Blag Main		130.90	135.54	4.64	1.51	38.1
BL16-029	Blag Main	incl	134.00	134.85	0.85	7.10	62.6
BL16-030	Blag Main		98.15	102.17	4.02	0.34	29.1

Notes:	- Intervals are core lengths / true width are estimated to be 70-80% of lengths
	- Length weighted averages from uncut assays.

IAMGOLD Option - Eastern Borosi Project