•Caspian Oil & Gas Ltd - Chief financial officer Graeme Parsons has been appointed as an executive director following the retirement of Alexander Becker. Mr Becker will retain a consultancy role with the company. •Centralian Minerals Ltd - Bryan Dixon has been appointed as company secretary. •Excalibur Mining Corporation Ltd Non-executive director Ian Murie has been appointed as chairman. •Resonance Health Ltd - Paul Jobbins has been appointed as chief financial officer. •Structural Monitoring Systems plc - Malcolm Richmond has been appointed as non-executive director following the resignation of David Forsyth.
