Barra Resources Ltd - Robert Colville has resigned as non-executive director. Blaze International Ltd - Cecil Che-Cheun has been appointed as non-executive director. Bone Medical Ltd - Prof Peter Brooks has been appointed as non-executive director. Computronics Holdings Ltd - David Sharp has resigned as director and company secretary. Emerald Oil & Gas NL - Morgan Barron has been appointed as joint company secretary. Glengarry Resources Ltd - Darren Gordon has resigned as non-executive director. Grandbridge Ltd - Seng Yap has resigned as non-executive director. Hydrotech International Ltd - Fiona Boucher has been appointed as company secretary following the resignation of Lee Boyd. Little World Beverages Ltd - Jason Marinko has resigned as CEO. New Opportunity Ltd - Martin Stein has been appointed company secretary following the resignation of Lisa Wynne. Repcol Ltd - Executive director George Wilson has replaced Adam Deane as company secretary. RMA Energy Ltd - Simon Whybrow has been appointed company secretary following the resignation of Emma McCormack. Solbec Pharmaceuticals Ltd - Russell Barnett has been appointed as director. Uranium King Ltd - Bernhard Free has been appointed as non-executive director. Vulcan Resources Ltd - Fiona Harris has been appointed as non-executive director. Westralia Property Management Ltd - Director Tony Davies has been appointed as chairman.