FILE PHOTO: The logo of sponsor Barrick Gold Corporation is seen as visitors arrive at the Prospectors and Developers Association of Canada (PDAC) annual convention in Toronto, Ontario, Canada March 4, 2019. REUTERS/Chris Helgren/File photo
FILE PHOTO: The logo of sponsor Barrick Gold Corporation is seen as visitors arrive at the Prospectors and Developers Association of Canada (PDAC) annual convention in Toronto, Ontario, Canada March 4, 2019. REUTERS/Chris Helgren/File photo