Ora Banda Mining has seen a mined gold grade increase of more than 50 per cent at its operations to 2.5 grams per tonne over the March quarter compared to an average of 1.7 g/t gold in the previous six months. The significant grade increase caps a solid three months for the company that also included an almost 5 per cent increase in gold produced with a total of 12,310 ounces against 11,803 ounces in the December quarter and 11,720 ounces through the September quarter.