Mike Blyth to retire from board, Vanessa Dennett and Graeme Dacomb to take over responsibilities.
Richard Lock will manage the company's NorthMet project.
Geoff Eyre to replace Sean Duffy on March 6.
Todd White joins the Calibre board and Mark Peterson has been appointed VP of exploration.
Goldberg to join sustainability and remuneration committees at BHP following retirement.
Doward-King has 30 years' experience in the mining, chemicals and engineering industries.
Canada-based Centerra Gold has chosen Michael S. Parrett as independent chair of the board.
Swedish miner Sotkamo Silver has appointed Mikko Sopanen and Max Forsman.
Dean Winsor now in Teck HR driving seat
Vale and Southern Copper lose the least ground
Morgan Ball will start in December
Gold and tungsten explorer has new CEO