TSX-V-listed Pacific Ridge Exploration has signed an earn-in agreement with Centerra Gold’s wholly owned subsidiary, Aurico Metals, to acquire up to a 75% interest in the Kliyul and Redton copper/gold porphyry projects, in British Columbia. Pacific Ridge president Gerry Carlson commented on Friday that there was discovery potential within both of these projects, which are based within a prolific mineral and mining belt.