Vancouver, June 28 – Prime Mining Corp. (“Prime” or the “Company”) (TSX-V: PRYM, OTCQB: PRMNF, Frankfurt: 04V3) today reported new results from its ongoing drill program at the Company’s Los Reyes gold-silver project. Reported results are from the first holes drilled into a major new discovery, Mina 20/21 (“Mina”), located 1.3 kilometres northeast of the Guadalupe East deposit, currently the most eastern of the eight-known gold-silver deposits at Los Reyes. Phase 1 drilling of 74 holes, comprising 15,061 metres (“m”), is now complete and 32 drill holes have been reported (see Figure 1). Reporting on the remaining 42 holes is forthcoming, pending assays.