Calibre Mining and Centerra Gold Commence Diamond Drilling on New Gold Targets at the Siuna Project, Nicaragua - Seite 2

Notes:	- Mineral Resources that are not mineral reserves do not have economic viability.
	- The quantity and grade of reported inferred resources in this estimation are uncertain in nature and there has been insufficient exploration to define these inferred resources as an indicated or measured mineral resource and it is uncertain if further exploration will result in upgrading them to an indicated or measured mineral resource category.
	- Resource Estimate for Cerro Aeropuerto detailed in Technical Report titled NI 43-101 Technical Report and Resource Estimation of the Cerro Aeropuerto and La Luna Deposits, Borosi Concessions, Nicaragua by Todd McCracken, dated April 11, 2011.

The technical content in this news release was read and approved by Gregory Smith, P.Geo, President and CEO of the Company who is the Qualified Person as defined by NI 43-101.

Centerra Gold Option - La Luz Project

Calibre's most recent mid-tier gold producer partner, Centerra Gold, can earn 70% in the 253 km² (25,300 ha) Siuna Project by spending $9 million by December 31 2020.

About Calibre Mining Corp.

Calibre controls a 100% interest in over 340 km² of mineral concessions in the Mining Triangle of Northeast Nicaragua. Additionally the Company has an option agreement with IAMGOLD covering 176 km² of concessions, an option agreement with Centerra Gold on 253 km², joint venture exploration programs underway with B2Gold Corp. on 66.1 km² of concessions which includes the Primavera gold-copper porphyry discovery and the Monte Carmelo Gold Zone, and a joint venture on the 33.6 km² Rosita gold-copper-silver project with Rosita Mining Corporation. Major shareholders of Calibre include gold producer B2Gold Corp, Pierre Lassonde and Management.

Calibre Mining Corp.

Greg Smith, P.Geo., President and CEO

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Cautionary Note Regarding Forward Looking Statements

This news release contains certain forward-looking statements, Any statements that express or involve discussions with respect to predictions, expectations, beliefs, plans, projections, objectives, assumptions or future events or performance (often, but not always, using words or phrases such as "expects" or does not expect", "is expected", anticipates" or "does not anticipate" "plans", "estimates" or "intends" or stating that certain actions, events or results " may", "could", "would", "might" or "will" be taken, occur or be achieved) are not statements of historical fact and may be "forward-looking statements". Forward-looking statements are subject to a variety of risks and uncertainties which could cause actual events or results to materially differ from those reflected in the forward-looking statements.