Calibre Mining Advances 100% Owned Primavera, Monte Carmelo, and Santa Maria Gold Projects on the Borosi Concessions, Nicaragua

VANCOUVER, BRITISH COLUMBIA--(Marketwired - March 6, 2017) - Calibre Mining Corp. (TSX VENTURE:CXB) (the "Company" or "Calibre") is pleased to announce advancement on the Company's 100% owned Primavera, Monte Carmelo, and Santa Maria Gold Projects located within the 876 sq km Borosi Concession, Northeast Nicaragua.

Highlights

• On the Primavera Gold-Copper Porphyry Project, work has included data compilation, target prioritization, and a site visit by consulting porphyry expert Dr. Richard Sillitoe.
• The maiden drilling program on the 100% owned Monte Carmelo Gold Skarn Project continues and will consist of a minimum of 2,500 metres.
• At the Santa Maria Epithermal Gold-Silver Project, the Company has completed permitting and community engagement agreements for the planned maiden diamond drilling program.
• Two additional on-going exploration programs funded by Calibre's partners IAMGOLD (Eastern Borosi Project) and Centerra Gold (Siuna Project) are advancing including IAMGOLD's ongoing drill program at the Risco de Oro and Guapinol Gold-Silver Projects.

President and CEO Greg Smith stated: "Calibre is aggressively advancing the Company's 100% owned gold projects in the Borosi District with Calibre personnel having done an exceptional job executing three concurrent exploration programs. These programs offer excellent opportunities for new discoveries with maiden drilling programs at Monte Carmelo and Santa Maria gold projects and the first drilling on the Primavera Deposit and District since 2012. Additionally, we continue to manage and complete exploration programs for our partners IAMGOLD and Centerra Gold."

100% Owned Primavera Gold-Copper Porphyry

Calibre continues to advance the 100% owned Primavera Gold-Copper Porphyry Project. The Company acquired 100% of the Primavera Project in November 2016 and has been actively completing data compilation and interpretations designed to finalize target prioritization for the 2017 Reverse Circulation ("RC") and diamond drilling programs.

In February 2017 a site visit was completed by one of the world's foremost porphyry experts Dr. Richard Sillitoe. Dr. Sillitoe's extensive experience and insights have advanced the understanding of the Primavera Gold-Copper deposit and additional follow-up work is on-going. Several of Dr. Sillitoe's conclusions will have a significant positive impact on the exploration programs going forward and have been incorporated into the planned drill program including;