•Alto Energy International Ltd - Non-executive director Charles Morgan has been appointed as non-executive chairman. •Chrome Corporation Ltd - Peter Landau has resigned as joint company secretary. •Nexus Energy Ltd - Susan Robutti has been appointed as company secretary following the resignation of Edward Munks. •Orion Equities Ltd - Farooq Khan has been appointed as executive chairman. •Prosperity Resources Ltd - Laurie Whitehouse has been appointed as a director. Robert Jones and Malcolm Smartt have resigned from the board. •Rockeby Biomed Ltd - Lew Syn Pau has been appointed as non-executive director following the resignation of Tan Swan Jeng. Richard Casey has also resigned as non-executive director. •Salinas Energy Ltd - Greg Dobson has resigned as non-executive director. •Strike Oil Ltd - Peter Gunzburg has been appointed as a director. •Uran Ltd - Former Skywest chairman Pat Ryan has been appointed as non-executive director. Kevin Somes has resigned as a director.