June 22, 2017 — Vancouver, B.C. – Prospero Silver Corp (PSL.V; the “Company” or “Prospero”) is pleased to announce that drilling has started at the Matorral project in in the Santa Maria del Oro camp, Durango State, Mexico.

The drilling is part of a planned 6,900m program to test 3 of Prospero’s projects under the terms of the recent strategic investment from Fortuna Silver Mines Inc. ((NYSE: FSM, TSX: FVI)). Prospero is planning to drill four holes at Matorral project, followed by eight holes at its Petate project, and then by eight holes at Pachuca SE (see Prospero news release dated May 30, 2017). This drilling program is under the terms of Prospero’s strategic agreement with Fortuna Silver Mines. Drill collar maps for Matorral will be available shortly on Prospero’s website.