Mercado Minerals intersects 1120 g/t Ag-eq over 1.20 m at El Agua Vein Copalito

Vancouver, British Columbia--(Newsfile Corp. - June 18, 2026) - Mercado Minerals Ltd. (CSE: MERC) (OTCQB: MRMNF) (" Mercado " or the " Company ") announces further drill results from the Copalito Project (" Copalito " or the " Project ") from its inaugural 3,000 metre diamond drill program located in Sinaloa, Mexico. Highlight results include 1.20 metres of 34 g/t silver, 3.40 g/t gold, 19.00% lead and 21.00% zinc (1120 g/t silver equivalent 1 ) within a larger 3.50 metre wide interval of 30 g/t silver, 1.94 g/t gold, 9.47% lead and 14.61% zinc (686 g/t silver equivalent 1 ) from 124.75 metres. Highlights Drilling at 5 Señores Vein is now complete and expanded the productive strike length to approximately 800 metres and vertical depth to approximately 125 metres.

During this drilling, a fault offset of 5 Señores vein was identified to the southeast with approximately 250 metre strike length. Initial drill testing has been completed and assays are pending. COP-26-014 at 5 Señores intersected a wide structural zone and returned 24.20 metres of 114 g/t silver, 0.50 g/t gold, 0.13% lead and 0.47% zinc (154 g/t silver equivalent 1 ) from 22.50 metres Including 7.60 metres of 340 g/t silver, 1.22 g/t gold, 0.34% lead, and 1.18% zinc (434 g/t silver equivalent 1 ) Including 2.10 metres of 569 g/t silver, 1.43 g/t gold, 0.93% lead, and 3.07% zinc (714 g/t silver equivalent 1 ) Drilling at El Agua has successfully intersected the vein from an aggressive step-out hole targeting a new steeper dipping interpretation of the structure.

Mineralization remains open in all directions and provides a new and accretive centre for future focused drill testing. COP-26-012 at El Agua intersected 3.50 metres of 30 g/t silver, 1.94 g/t gold, 9.47% lead and 14.61% zinc (686 g/t silver equivalent 1 ) from 124.75 metres Including