Dwyka Diamonds has appointed Adrian Griffin, managing director of recently listed explorer Hodges Resources, as its new chief executive. Mr Griffin, who has experience in exploring for and producing a range of commodities, will begin his tenure at Dwyka from December 1. He has had numerous senior appointments with public companies, including as a director of Bulong Operations, which was placed into voluntary administration in 2003. Mr Griffin is also currently chairman and managing director of November-listed explorer Washington Resources.