Vancouver, March 18, 2021 – Prime Mining Corp. (“Prime” or the “Company”) (TSX-V: PRYM, OTCQB: PRMNF, Frankfurt: A2PRDW) is pleased to report initial results from its 15,000 m Phase 1 diamond drilling program at the Los Reyes project in Sinaloa State, Mexico. Results have been received from drill hole 21GE-01 at Guadalupe East and surface sampling at Mina 20/21 has discovered new high-grade mineralization 1.3 km northeast of Guadalupe East in an area of unrecorded historic mining (see Figure 1).