Gold and base metals producer Eldorado Gold, which has operations in Turkey, Canada, Greece, Romania and Brazil, achieved a 35% year-on-year increase in gold production to 136 922 oz for the third quarter ended September 30. All-in sustaining costs (AISC) of $918/oz were lower than the AISC of $1 031/oz in the third quarter of 2019 and were negatively impacted on by an incremental 25% increase in gold royalty rates in Turkey.