April 24 (Reuters) - Defense Metals Corp DEFN.V :
* RYAN CHEUNG WILL BE RESUMING ROLE AS CFO
* DEFENSE METALS CORP. ANNOUNCES SENIOR MANAGEMENT CHANGES
* CRAIG TAYLOR WILL BE RESUMING ROLES AS CHIEF EXECUTIVE OFFICER
* RICHARD GRAYSTON IS RETIRING
* MAXIMILIAN SALI WILL REMAIN ON BOARD AS A DIRECTOR