Calibre Mining Advances Gold Targets on 100% Owned Siuna District Projects, Nicaragua - Seite 2

Rock sampling at Cerro Aza (five km south-west of Montes de Oro) returned 6.6 g/t Au and 4.5 g/t Ag from a float rock sample of gossanous material within an area where previous soil sampling generated a gold in soil anomaly >750 metres long (open to the north) and 200 metres wide. The area is underlain by volcanic and sedimentary rocks (including limestone) which have been intruded by hornblende porphyry and diorite. The setting is similar to that at Montes de Oro. Further work will consist of additional soil sampling which will extend the grid to the north, as well as further prospecting and geological mapping.

At San Miguel (three km north-east of Montes de Oro) soil sampling and geological mapping has been completed over an area of 1.34km². In total 173 soil samples over 17 lines and 10 rock samples were collected - results are pending. The grid covers the area of a previous rock (float) sample which returned 5.85 g/t Au, 11.1 g/t Ag, 0.29% Pb, and 0.14% Zn. The San Miguel target is underlain by silicified andesite porphyry with disseminated pyrite and centimeter-scale quartz stockwork veinlets exposed on a small resistant ridge consisting of strong argillic and oxide alteration. The showing is located next to a creek, which has been worked for alluvial gold on a small scale.

Sampling was completed at Cerro Potosi (10km south of Montes de Oro) and continuous chip sampling of outcrop exposed in the footwall to the historic La Luz mine returned 10.2 metres grading 2.05 g/t Au and 178.1 g/t Ag. Additionally selected grab samples of mineralized skarn material included up to 18.9 g/t Au and 96.0 g/t Ag.

sample	type	width	Au g/t	Ag g/t
CPTR14-001	continuous chip	21.0	1.15	113.04
	including	10.2	2.05	178.07
CPTR14-002	continuous chip	53.0	0.44	14.66
B14R5053	grab	-	8.90	96.00
B14R5057	grab	-	10.40	5.00
B14R5058	grab	-	7.64	16.60
B14R5060	grab	-	18.90	6.60
B14R5061	grab	-	2.64	1.40

Notes;

- For chip samples, intervals are trench lengths / true width unknown / Length weighted averages from uncut assays.

At Montes de Oro work continues to define and expand the surface gold anomaly. Trench MTR15-033 is a 150 metre step out south of trench MTR13-009 which intersected 52.3 m grading 7.07 g/t Au, exposed silicified and argillic altered diorite with variable quartz veining. The entire trench averages 14.6 metres grading 0.21 g/t Au, 3.36g/t Ag, 0.05 % Pb, and 0.98 % Zn. The last sample from 14.0 to 14.6 metres returned 0.52 g/t Au, 52.4 g/t Ag, 1.15% Pb, and 2.83% Zn. Mineralization exposed in this trench to date is interpreted to represent a "halo" to higher grade zone and accordingly the trench is currently being extended.