Orosur Mining Inc. announced a revised resource estimate incorporating drilling completed by Orosur on the western extension of the San Gregorio Deeps project. Approximately 3,000 meters of drilling was completed to further evaluate the extensions of the gold resources at San Gregorio during Third Quarter 2015. Based on the results of this drilling, the 2011 geological model and resource estimate were updated with the assistance of Mine Development Associates of Reno, Nevada.

For an open pit scenario, using a cut-off grade of 0.70 g/t gold, there is an indicated resource of 3,341,000 tonnes at 1.58 g/t Au for 170,000 oz of contained gold. For an underground scenario, at a cut-off grade of 1.60 g/t Au there is an indicated resource of 1,034,000 tonnes at 2.80 g/t Au for 93,000 oz of contained gold.