10:14 AM EST - Calibre Mining Corp. : Provided an update on the Borosi exploration project held under an earn-in option agreement between Rio Tinto Exploration and Calibre. Calibre controls a 100% interest in the Borosi concessions located in the prolific Mining Triangle region of northeastern Nicaragua. RTX has the right to earn a 75% interest by spending $45 million U.S. over 11 years in the project. The Borosi exploration program is being directed by RTX through a partnership agreement with Calibre as project operator. Calibre Mining Corp.
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