Dec 4 (Reuters) - Orex Minerals Inc REX.V :
* OREX SIGNS LETTER OF INTENT TO ACQUIRE THE SAN LUIS DEL CORDERO SILVER-COPPER-ZINC PROJECT IN DURANGO, MEXICO
* OREX MINERALS INC - SIGNED LOI WITH EXPLORACIONES DEL ALTIPLANO SA DE CV TO ACQUIRE 100% OF SAN LUIS DEL CORDERO PROJECT IN DURANGO, MEXICO