Dec 15 (Reuters) - Centerra Gold Inc CG.TO :
* ORION TO ACQUIRE CENTERRA GOLD'S 50% INTEREST IN THE GREENSTONE GOLD MINES PARTNERSHIP
* CENTERRA GOLD INC - DEAL FOR CASH CONSIDERATION OF US$225 MILLION
* CENTERRA GOLD INC - AN AFFILIATE OF ORION MINE FINANCE GROUP HAS ENTERED INTO AN AGREEMENT WITH CENTERRA AND PREMIER