The Philippines–based gold miner produced 25,056 oz (24,986oz) of gold in the three months to December, at an average head grade of 6.67 g/t gold, from 124,914 tonnes of ore processed.
Tonnage mined was lower than the previous quarter, but the grade and amount processed ticked up slightly.
Maintenance work at the Co-O mine pushed all-In-sustaining-costs up to US$1,025 per oz, but cash costs fell.
First half production totalled just under 50,000oz and for the full year, Medusa has forecast between 85,000-90,000oz.
During the quarter, the company also signed a MoU over an exploration licence in Cambodia.