Mercado Minerals intersects 675 g/t AgEq over 0.80 m at Copalito

Vancouver, British Columbia--(Newsfile Corp. - July 28, 2026) - Mercado Minerals Ltd. (CSE: MERC) (OTCQB: MRMNF) (" Mercado " or the " Company ") announces 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 0.80 metres of 9 g/t silver, 5.37 g/t gold, 1.65% lead and 10.05% zinc (675 g/t silver equivalent 1 ) within a wider 3.40 metre interval of 11 g/t silver, 3.53 g/t gold, 1.45% lead and 4.41% zinc (403 g/t silver equivalent 1 ) from 118.00 metres. Highlights Step-out drilling at the El Pilar Vein returned the two best mineralized intercepts at the target to date.

The El Pilar Vein has been defined by drilling over a strike length of 1,250 metres, with an area of higher-grade mineralization that measures approximately 400 metres in strike length by 200 metres down the dip plane of the vein. The entire El Pilar Vein remains open along strike and to depth in all directions. Expansion of this area will be a focus for future drill programs.

COP-26-019 intersected 3.40 metres of 11 g/t silver, 3.53 g/t gold, 1.45% lead, and 4.41% zinc (403 g/t silver equivalent 1 ) from 118 metres, including 0.80 metres of 9 g/t silver, 5.37 g/t gold, 1.65% lead, and 10.05% zinc (675 g/t silver equivalent 1 ) COP-26-018 intersected 4.05 metres of 9 g/t silver, 1.86 g/t gold, 1.19% lead and 4.08% zinc (264 g/t silver equivalent 1 ) from 117.40 metres, including 0.65 metres of 18 g/t silver, 3.80 g/t gold, 3.14% lead and 11.85% zinc (635 g/t silver equivalent 1 ) Step-out drilling at the El Agua Vein successfully intersected robust vein mineralization and has defined a higher-grade corridor that measures approximately 500 metres along strike and 200 metres down dip, within the larger 950 metre strike length of th