Firestone Diamonds plc announced that effective May 1, 2015, the appointment of Mr. Keith Johnson to Firestone's Board of Directors, as a Non-executive Director. Keith joins the Board as the nominated Non-executive Director of Resource Capital Fund VI L.P. Keith Johnson has over 25 years of experience in the natural resources sector, 18 of which were in the mining industry where he held various senior positions within Rio Tinto plc, including on its Executive Committee from 2003 to 2009.