International Minerals Reports High-Grade Drill Results at Rio Blanco Project, Ecuador, Including 2.2m at 30.8 g/t and 3.6m at 12.1 g/t Gold

updated 8:30 a.m. ET June 24, 2008

SCOTTSDALE, AZ - International Minerals Corporation (TSX: IMZ) (SWX: IMZ) reports high-grade drill results (including 2.2 meters ("m") at 30.8 grammes per tonne (g/t) gold from veins within the western part of the Bolivar Zone at its 100%-held Rio Blanco gold-silver project in Ecuador.

The east-west trending vein system in the Bolivar Zone (see attached map) is approximately 1.5km in strike length and is located only 350m north of the Alejandra North vein, where a proposed underground mining operation is currently in the permitting stage, with approval of such permits pending the implementation of a proposed new mining law in Ecuador (see IMZ news releases dated April 22, 2008 and April 25, 2008 for further details).

IMZ has received assay results from 35 additional core holes (totaling 9,736m) from the Bolivar Zone. Highlights of the drill results in the Bolivar West area (all uncut assays and estimated true widths) include: