March 9 (Reuters) - Great Northern Minerals Ltd GNM.AX :
* APPOINTS KIM ROBINSON AS A NON-EXECUTIVE CHAIRMAN
* GERARD KING TO RETIRE FROM HIS POSITION AS NON-EXECUTIVE CHAIRMAN AT END OF MARCH
* ANNOUNCES CAPITAL RAISING TO RAISE UP TO $2.25M BY WAY OF TWO TRANCHE PLACEMENT & A 1:4 RIGHTS ISSUE AT 0.6C PER SHARE