March 18 (Reuters) - OceanaGold Corp OGC.AX :
* PRESIDENT AND CHIEF EXECUTIVE OFFICER, MICK WILKES, IS STEPPING DOWN
* MICHAEL HOLMES WILL TAKE OVER AS ACTING PRESIDENT AND CHIEF EXECUTIVE OFFICER
* WILL COMMENCE SEARCH FOR PERMANENT PRESIDENT AND CEO & HOLMES WILL BE INVITED TO PARTAKE IN THAT PROCESS