Perth-based Aquarius Platinum has appointed Sir Nigel Rudd to the board of directors as chairman, following the resignation of non-executive chairman Nicholas Sibley.
The change will take effect on March 1 2015.
Mr Sibley has been a director of Aquarius since 1999 and chairman since 2002.
Sir Nigel was previously non-executive director of Barclays plc for 13 years and deputy chairman for six years.