April 9 (Reuters) - Great Boulder Resources Ltd GBR.AX :
* STEFAN MURPHY HAS RESIGNED AS MANAGING DIRECTOR
* GREG HALL WILL ACT AS INTERIM CHIEF EXECUTIVE OFFICER FROM MAY 3
April 9 (Reuters) - Great Boulder Resources Ltd GBR.AX :
* STEFAN MURPHY HAS RESIGNED AS MANAGING DIRECTOR
* GREG HALL WILL ACT AS INTERIM CHIEF EXECUTIVE OFFICER FROM MAY 3