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Mercado Minerals (MRMNF) reported initial surface chip sampling results from its Zamora project’s Campanillas Vein in Sinaloa, Mexico.
The 2026 program has mapped and sampled a 300 metre strike length, doubling the previously known strike. Highlight intercepts include 2.40 metres (true width) grading 528 g/t silver and 0.75 g/t gold (536 g/t AgEq), with an internal 1.00 metre interval of 828 g/t silver (760 g/t AgEq), the highest-grade surface composite yet at Campanillas. Systematic sampling shows approximate true widths between 0.60 and 2.40 metres, silver grades from 2 to 828 g/t and gold from 0.04 to 1.66 g/t. Mercado states that mineralized vein and wallrock at surface appear wider than in historic underground workings. Detailed QA/QC procedures and independent NI 43-101 review are described.
Mercado Minerals (OTCQB: MRMNF) announced that its subsidiary Concordia Silver Company has signed a community access and exploration agreement with Ejido Rincon de Ibonia covering part of the Zamora silver-gold project in Sinaloa, Mexico. The agreement enables Mercado to advance and complete the drill permit process, initially focused on the Campanillas area.
According to Mercado, the company will pay an annual fee of 100,000 MXN with a one-year renewal option, plus 3,000 MXN per drill pad to mitigate land impacts. Mercado continues discussions with other Ejido groups for broader access. Historic sampling at Zamora returned high silver-gold grades, but these results are treated as historical and will be independently verified by a Qualified Person under NI 43-101.
Mercado Minerals (OTCQB: MRMNF) reported results from its inaugural 25‑hole diamond drill program at the Copalito silver project in Sinaloa, Mexico, testing seven vein structures. Drilling expanded mineralization on the 5 Señores, El Agua and El Pilar veins and confirmed several new targets.
Key intercepts include 7.60 m of 340 g/t silver and 1.22 g/t gold at 5 Señores, 3.50 m of 30 g/t silver, 1.94 g/t gold, 9.47% lead and 14.61% zinc at El Agua, and 3.40 m of 11 g/t silver, 3.53 g/t gold, 1.45% lead and 4.41% zinc at El Pilar. Surface work increased the number of principal veins from six to eight, extending cumulative mapped strike from 8 km to 11 km.
According to the company, surface exploration outlined extensions to four veins and discovered two new ones, notably the 1,150 m long Renata Vein, which will be a priority in a planned Phase II program focused on expanding higher‑grade zones and testing new targets.
Mercado Minerals (OTCQB: MRMNF, CSE: MERC) reported inaugural 3,000 metre diamond drill results from the Copalito silver-gold project in Sinaloa, Mexico, highlighted by 0.80 metres grading 9 g/t silver, 5.37 g/t gold, 1.65% lead and 10.05% zinc, or 675 g/t silver equivalent, within 3.40 metres of 403 g/t silver equivalent at the El Pilar Vein.
Step-out drilling has outlined higher-grade sub-horizontal corridors at El Pilar (about 400 metres strike by 200 metres down dip) and El Agua (about 500 metres strike by 200 metres down dip), both open along strike and partially to depth. Additional drilling confirmed vein structures at 5 Señores, El Pilar Sur, El Medio and Chente over a combined mapped strike of more than 1,900 metres. Mercado detailed QA/QC procedures and noted silver-equivalent calculations based on assumed recoveries and metal prices, with true widths yet to be defined by further drilling.
Mercado Minerals (OTCQB: MRMNF) reported new drill results from its 3,000 m diamond program at the Copalito Project in Sinaloa, Mexico.
Key intercepts include 3.50 m of 686 g/t silver equivalent and 1.20 m of 1120 g/t silver equivalent at the El Agua vein, plus broad mineralized intervals at the 5 Señores vein, where drilling has extended strike to ~800 m and vertical extent to ~125 m. Mineralization at El Agua remains open in all directions, and drilling continues on additional veins.
Mercado Minerals (OTCQB: MRMNF) signed two LOIs to acquire the San Rafael and La California silver-gold projects in the San Dimas district, Durango, Mexico. The adjacent properties total 4,617 ha with over 6.5 km of cumulative structural/vein strike.
According to Mercado, both projects can be acquired via five-year options for about $5.6 million CAD in cash, with no royalties or NSR. Reported historical underground and channel samples show high-grade silver-gold intervals, but the company’s Qualified Person classifies these results as historical and not yet independently verified.
Mercado Minerals (OTCQB: MRMNF) reported first results from a 3,000m inaugural drill program at the Copalito Project on April 29, 2026.
Highlights include 6.50 m @ 256 g/t Ag and 1.45 g/t Au (COP-26-001) including 3.45 m of 445 g/t Ag and 1.20 m of 848 g/t Ag; additional holes returned 16.70 m @ 30 g/t Ag and 7.25 m @ 89 g/t Ag. All intervals are drilled core lengths; further drilling is required to establish true widths.
Mercado Minerals (OTCQB: MRMNF) reports progress on a 3,000-metre diamond drill program at the Copalito Project, Sinaloa, Mexico. As of April 21, 2026 the company completed 12 holes totaling 1,479 metres (nearly half the program) with 11 holes on the 5 Señores vein.
Drilling has moved to the El Agua vein; initial samples were sent to ALS Global. Preliminary soil data show anomalous silver, lead, zinc, gold and arsenic correlation, prompting expansion of soil sampling and continued mapping to refine drill targets.
Mercado Minerals (OTCQB: MRMNF) reported re-sampling and re-assaying results from 12 historic diamond drill holes at the Copalito project dated April 14, 2026. Results show strong overall agreement with prior assays across multiple veins, validating the acquired dataset of 81 drill holes and supporting recent targeting ahead of inaugural 2026 drilling.
Where differences occur, Mercado attributes them to natural deposit variability and documented missing specimen core intervals; full re-assay tables and QA/QC procedures are provided.
Mercado Minerals (OTCQB: MRMNF) commenced trading on the OTCQB Venture Market on April 7, 2026, while maintaining listings on the Canadian Securities Exchange (MERC) and Frankfurt (M2R). DTC eligibility was also approved, which the company says will simplify U.S. electronic clearing and may enhance U.S. liquidity and accessibility for investors.
The OTCQB listing aims to increase visibility for U.S. investors and provides real-time quotes on otcmarkets.com; DTC eligibility is intended to streamline settlement and trading in the United States.