Elizabeth Gaines has been appointed chief financial officer of Fortescue Metals Group. Ms Gaines will continue as executive director.
Robert Connochie has joined Danakali as non-executive director.
Gregory Hancock has been appointed non-executive director of BMG Resources.
Sally-Anne Layman has been appointed non-executive director of Imdex.
Chris Rashleigh has retired from the board of Peninsula Mines. Mr Rashleigh was appointed managing director in 2013 and became non-executive director in 2015.