Constantine Metal Resources Ltd. announced that Mr. Stuart Harshaw has been appointed to the Company’s Board of Directors effective June 4, 2018. Mr. Harshaw is a seasoned professional with a distinguished 27-year career in the mining industry, mostly with Vale SA and Inco Ltd, where, among other things, he was in charge of operating six underground mines, a portfolio of processing and refining facilities, as well as marketing and sales of a broad range of concentrates worldwide. He is a member of the Board of Directors of International Tower Hill Mines and Laurentian University of Sudbury, Canada. Mr. Harshaw was appointed to the Company's Board of Directors pursuant to the Company's investment agreement with Electrum Strategic Opportunities Fund II L.P. ("Electrum"). Upon closing of the second tranche of the private placement, Electrum will have the right to name one additional director to be appointed to the Board of Directors (for a total of two).