June 16 (Reuters) - Cellnet Group Ltd CLT.AX :
* ALAN SPARKS HAS DECIDED TO RETIRE AS COMPANY'S CHIEF EXECUTIVE OFFICER
* APPOINTED DAVE CLARK AS ACTING CHIEF EXECUTIVE OFFICER
June 16 (Reuters) - Cellnet Group Ltd CLT.AX :
* ALAN SPARKS HAS DECIDED TO RETIRE AS COMPANY'S CHIEF EXECUTIVE OFFICER
* APPOINTED DAVE CLARK AS ACTING CHIEF EXECUTIVE OFFICER