K92 Mining Inc. Releases 2019 Q2 Financial Results, Increases 2019 Production Guidance and Decreases 2019 Cost Guidance For the three months (brackets six months) ended June 30, 2019, K92 sold 18,824 (37,240) gold oz for the period at a cost of US$551/oz1 ($472/oz1) and an all-in sustaining cost (AISC) of US$681/oz1...