Mastermyne Group Limited announced that, for personal reasons, Ms. Liz Blockley has resigned as Chief Financial Officer (CFO) and Company Secretary. The company announced that Mr. Brett Maff has been appointed as CFO and Company Secretary on an interim basis. Brett has over 20 years experience in the resources and mining services sectors, and has held various senior financial management and executive positions with companies including Fitzroy Australia Resources, Calibre Group, Anglo American, Vale, AMCI Australia, Bucyrus and Xstrata.