FILE PHOTO: Mark Bristow, chief executive officer of Barrick Gold, speaks during an interview at the Investing in African Mining Indaba conference in Cape Town, South Africa February 5, 2019. REUTERS/Mike Hutchings/File Photo
FILE PHOTO: Mark Bristow, chief executive officer of Barrick Gold, speaks during an interview at the Investing in African Mining Indaba conference in Cape Town, South Africa February 5, 2019. REUTERS/Mike Hutchings/File Photo