Australian Ethanol Ltd - Bruce Arnold has been appointed as company secretary and chief financial officer. Australian Waterwise Solutions Ltd - Mark Armitage has been appointed as managing director. Bannerman Resources Ltd - Clive Jones has been appointed as non-executive director. Coretrack Ltd - David Orth has resigned as executive director. Andrew Gregory has also resigned as non-executive director. Energy World Corporation Ltd - Suparno Adijanto and H P Tan have resigned as non-executive directors. Environmental Clean Technologies Ltd - Greg Fendis has resigned as non-executive director. Eurogold Ltd - Dennis Franks has resigned as a director. Great Australian Resources Ltd - Mark Leaker has resigned as non-executive chairman. IM Medical Ltd - Peter Wilson has resigned as non-executive director. Craig Cook and David Eccleston have joined the board as directors. Intellect Holdings Ltd - Paul Phillips has resigned as non-executive director. Medtech Global Ltd - Anthony Trevisan has resigned as a director. Barry Panos has resigned as company secretary. Metals X Ltd (formerly Bluestone Tin Ltd - ) Due to the recent merger with Metals Exploration Ltd and consequent change of name, Mike Jefferies and Don Head have been appointed as non-executive directors. Mundo Minerals Ltd - Joe Mobilia has been appointed as joint company secretary and chief financial officer. Nomad Building Solutions Ltd - Wayne McGrath has been appointed as a director.