Driving these changes are higher operating costs at Lumwana and Zaldívar, partially offset by lower depreciation and lower sustaining capital at Lumwana. Barrick will provide additional discussion and analysis regarding its fourth quarter production and sales when the Company reports its quarterly and full year 2020 results before North American markets open on February 18, 2021. The following table includes preliminary gold and copper production and sales results from Barrick's operations: Fourth Quarter and Full Year 2020 Results Barrick will release its fourth quarter and full year 2020 results before market open on February 18, 2021. President and CEO Mark Bristow will host an interactive webinar on the results at 11:00 EST / 16:00 UTC. The presentation will be linked to the webinar and conference call. Participants will be able to ask questions.