Commodities
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Heliostar Announces Inclusion in the GDXJ
The Mining and Exploration News in Mexico: Highlights on the Second Week of September, 2026
Brochantite
By Miguel A Heredia
During the 37th week of the year (September 07 to September 13, 2026), at least 32 press releases were issued by companies operating in Mexico, and 1 news published by the media. Of these, twelve related to deals and corporate matters, ten covered resource and development updates, seven presented exploration results, two announced financial activities, one addressed Mexican-related issues, and one reported social issues. ON MEXICO ISSUES, Two alleged members of Los Chapitos arrested for the kidnapping of 10 miners in Sinaloa. ON EXPLORATION, In Sonora, Riverside and its JV Partner Questcorp released assay results from the Phase 2A 2026 core drilling program at the Union project, Zacatecas Silver reported assay results from the second phase of rock chip sampling at its Oso Negro project, Algo Grande announced drill results from its Adelita project, and Tocvan confirmed gold mineralization along El Mezquite trend at its Gran Pilar project. In Nayarit, Miravalles Gold filed an independent technical report for its Fairfield project. In Durango, Pinnacle announced that its ongoing drilling program at El Potrero project has confirmed and extended the previously announced high-grade gold-silver mineralization at the historic Pinos Cuates mine. ON MINING, No relevant news. ON FINANCING, DynaResource received USD $4M in IVA tax refund. Goldgroup announced a non-brokered private placement for gross proceeds of up to USD $75M. ON RESOURCES AND DEVELOPMENT, Luca Mining released new assay results from its ongoing drill program at the Tahuehueto project, Durango. Zacatecas Silver announced drill assays from El Cristo drill program in Zacatecas. GR Silver reported that its ongoing 20,000m drill program at San Marcial project, Sinaloa continues to deliver significant drill intercepts confirming extension of mineralization beyond the current mineral resource estimate area. Goldgroup reported strong assay results of the six first drillholes from its ongoing 26,000m drill campaign at its San Francisco mine, Sonora. First Majestic announced positive results from its ongoing 2026 drilling program and expands exploration footprint at San Dimas project Durango. Defiance Silver provided the results on the drilling campaign on the San Acacio resource drilling program on the Zacatecas project. Oroco reported the fourth batch of assay results from its Phase 2 resource drilling program at its Santo Tomas project in Sinaloa. Sierra Madre announced that the twin diesel electric generators have been installed at La Guitarra mine in the State of Mexico. Silver Tiger reported exploration results for the 2026 summer program at its El Tigre project in Sonora. Goldgroup provided an overview of its Oaxaca mining operations and regional land package. ON DEALS AND CORPORATE ISSUES, Starlo Ventures entered into a binding letter of intent to acquire a 100% interest in and to the Margarita project, Chihuahua. Discovery Mining announced the appointment of William Shaver to the Board of Directors, as well as a number of senior appointments and executive promotions. Santacruz received conditional approval from the Toronto Stock Exchange to list its common shares. Americas Gold and Silver, Avino, and Discovery Mining announced that they have been named to the 2026 TSX30™, the Toronto Stock Exchange’s annual ranking of the 30 top-performing companies based on dividend-adjusted share price performance over a three-year period. Elemental Royalty received approval from Mexico´s antitrust agency with respect to the acquisition of Vizsla Royalties. Guanajuato Silver appointed Colin Bower as Chief Operating Officer. Regency Silver agreed to acquire a 100% interest in the past producing Jabali Gold project, Sonora. GR Silver granted stock options to certain directors, officers, employees, and consultants. Apollo Silver announced a community assembly at which members of the Ejido are expected to vote on lifting the moratorium on mineral exploration and development affecting lands which include the Cinco de Mayo project, which is expected to be held on September 20, 2026. Mining Americas changed its auditor from McGovern Hurley LLP to Ernst & Young LLP. ON SOCIAL RESPONSIBILITY, Algo Grand received a BB rating in its first Digbee ESG assessment, covering both the Company and its 100%-owned Adelita Project in Sonora, Mexico.
ON MEXICO ISSUE
- Detienen a dos presuntos integrantes de Los Chapitos por secuestro de 10 mineros en Sinaloa: El Economista – Maria Fernanda Sosa Santiago
ON EXPLORATION
- Riverside Resources Intersects Near-Surface Gold and Base Metal Mineralization at Union Norte and Advances Multiple Targets for Phase 2B Drilling: Riverside Resources Inc
- Questcorp Defines Near-Surface Gold Discovery Corridor at Union Norte Expanding District-Scale Potential at La Union: Questcorp Mining Inc
- Zacatecas Silver Expands Oso Negro to Over 3 Kilometres of Mapped Gold-Silver Veins; Phase Two Rock Chip Sampling Returns up to 20.3 g/t Gold and 3,480 g/t Silver: Zacatecas Silver Corp
- Algo Grande Copper Intersects 30.23 Metres Grading 1.5% CuEq, including 3.55 Metres at 9.4% CuEq and 1.2-Metre Interval at 15.8% CuEq, 100 metres vertical step-out from historical intersects: Algo Grande Copper Corp
- Tocvan Confirms Gold Mineralization Along Entire 1,300-Metre El Mezquite Trend at Gran Pilar: Tocvan Ventures Corp
- Miravalles Gold Corp Files NI 43-101 Technical Report for Fairfield Gold Project, Nayarit, Mexico: Miravalles Gold Corp
- Pinnacle Confirms High-Grade Mineralization in Underground Drilling at El Potrero with up to 58.2 g/t Au and 631 g/t Ag: Pinnacle Silver and Gold Corp
ON MINING
- No relevant news
ON FINANCING
- DynaResource Receives US$4.0 Million in IVA Tax Refund: DynaResource Inc
- Goldgroup Announces US$75 Million Private Placement with US$60 Million already Committed by Leading Natural Resource Investors: Goldgroup Mining Inc
ON RESOURCES AND DEVELOPMENT
- Luca Intersects 9.9 Metres of 5.39 g/t Gold Equivalent from the Catorce Zone at Tahuehueto Mine: Luca Mining Corp
- Zacatecas Silver Announces Multiple Silver Assays from El Cristo Drill Program: Zacatecas Silver Corp
- GR Silver Confirms Extension of Mineralization at San Marcial, Including 16.1 m at 162 g/t Ag and11.7 m at 147 g/t Ag in the SE Area: GR Silver Mining Ltd
- Goldgroup Reports Strong First Results from 26,000 Metre San Francisco Drill Program: Goldgroup Mining Inc
- First Majestic Reports High-Grade Drill Results and Expands Exploration Footprint at San Dimas: First Majestic Silver Corp
- Defiance Silver San Acacio Drilling Returns High Grade Silver; Additional Holes Pending from Lucita Drilling: Defiance Silver Corp
- Oroco Continues South Zone Success: Oroco Resource Corp
- Sierra Madre Onsite Power Generation Fully Functional at La Guitarra: Sierra Madre Gold and Silver Ltd
- Silver Tiger Intersects 2.1 Metres of 7.72 Kilograms Per Tonne Silver Equivalent in the Caleigh Vein Including 0.53Metres of 29.62 Kilograms: Silver Tiger Metals Inc
- Goldgroup Highlights its Two Producing Mines and Significant Growth Potential Across the Don David Gold Complex in Mexico: Goldgroup Mining Inc
ON DEALS AND CORPORATE ISSUES
- Starlo to Acquire Margarita Silver Project, Mexico: Starlo Ventures Ltd
- Discovery Announces Management Changes: Discovery Mining Ltd
- Santacruz Silver Receives Conditional Approval to Graduate to the Toronto Stock Exchange: Santacruz Silver Mining Ltd
- Americas Gold and Silver Recognized as a Top Performer in the 2026 TSX30™: Americas Gold and Silver Corporation
- Avino Earns Second Consecutive TSX30™ Recognition: Avino Silver & Gold Mines Ltd
- Discovery Named 2026 TSX30™ Top-Performing Company: Discovery Mining Ltd
- Elemental Royalty Receives Mexican Antitrust Approval for the Acquisition of Vizsla Royalties: Elemental Royalty Corporation
- Guanajuato Silver Appoints Chief Operating Officer: Guanajuato Silver Company Ltd
- Regency Silver Corp Acquires Past Producing Jabali Gold Project in Sonora, Mexico — Adjacent to Alamos Gold’s Mulatos Mine: Regency Silver Corp
- GR Silver Mining Announces Incentive Plan Grants: GR Silver Mining Ltd
- Apollo Silver Announces Ejido Vote on Mining Moratorium at Cinco de Mayo: Apollo Silver Corp
- Mining Americas Announces Change of Auditor: Mining Americas Inc
ON SOCIAL RESPONSIBILITY
- Algo Grande Copper Achieves BB Rating in First Digbee ESG Assessment at the Adelita Project: Algo Grande Copper Corp
Content like what you have just read can be seen at https://gambusinoprospector.com/ and at LinkedIn’s Mexico Mineral Exploration Group.
On the picture below, brochantite in a Cu-Au project in Sonora Mexico. Photo taken by Miguel A Heredia.
The Mining and Exploration News in Mexico; Highlights on the First Week of September 2026
By Jorge Cirett
During the 36th week of the year (August 31st to September 6th, 2026), 20 companies working in Mexico released press releases. One company reported activities on an early-stage property. There was no news related to mining. Three companies informed on financing rounds for C$ 31.4 M and one other granted stock options. Six companies presented news on resources and development. Eight companies presented news on deals and corporate issues. ON MEXICO ISSUES, no relevant news. ON EXPLORATION, In Sinaloa, Mercado Minerals presented results from surface sampling at the Zamora project. ON MINING, Goldgroup Mining present Q2 2026 financing results. ON FINANCING. Silverco Mining granted stock options. Silver Storm Mining and Algo Grande Copper closed private placements for C$21 M and C$4.8 M respectively. Aztec Minerals upsized its private placement from C$5 M to C$5.6 M. Sailfish Royalty declared a dividend. ON RESOURCES AND DEVELOPMENT, Silver Hammer and Stroud Resources updated its mineral resource estimate for the Santo Domingo project in Jalisco. Southern Silver Exploration reported underground sampling results at Cerro Las Minitas in Durango. Barksdale Resources advances work on gold at its San Javier property in Sonora. Sonoro Gold released drilling results from Cerro Caliche, in Sonora. Mining Americas received key permits for its Cerro de Oro project in Zacatecas. Goldgroup Mining highlighted the exploration potential at Don David, in Oaxaca. ON DEALS AND CORPORATE ISSUES, Alamos Gold, Apollo Silver, Sonoro Gold announced changes/appointments to the board. Colibri Resource and Tocvan Ventures presented corporate updates. Teck Resources informed on its merger with Anglo American. Goldgroup Mining provided an update on its merger with Gold Resource. ON SOCIAL RESPONSIBILITY, no relevant news.
ON MEXICO ISSUES
- No Relevant News.
ON EXPLORATION
- Mercado Minerals Announces Initial Surface Results from the Zamora Project, Highlights 1.00 Metre of 828 g/t Silver at the Campanillas Vein: Mercado Minerals (Zamora, Sinaloa)
ON MINING
- Goldgroup Files Second Quarter 2026 Financial Results and Provides Update on Combined Company: Goldgroup Mining (San Francisco, Sonora)
ON FINANCING AND SHARES
- Silverco Mining Grants Incentive Stock Options and Restricted Share Units: Silverco Mining (La Parrilla, Durango)
- Silver Storm Closes Second and Final Tranche of Non-Brokered Private Placement for Aggregate Gross Proceeds of $21.0 Million: Silver Storm Mining (La Parrilla, Durango)
- Algo Grande Copper Closes Oversubscribed Private Placement for $4.786 Million: Algo Grande Copper (Adelita, Sonora)
- Sailfish Royalty Declares Q3 2026 Dividend: Sailfish Royalty (royalty on Gavilanes, Durango)
- Aztec Minerals Announces $5 Milli: on Bought Deal Private Placement of Units: Aztec Minerals (Cervantes, Sonora)
- Aztec Minerals Announces Upsize of Bought Deal Private Placement to $5.6 Million: Aztec Minerals (Cervantes, Sonora)
ON RESOURCES AND DEVELOPMENT
- Silver Hammer and Stroud Resources Announce Updated Mineral Resource Estimate for the Santo Domingo Silver-Gold Project, Mexico: Silver Hammer (Santo Domingo, Jalisco)
- Southern Silver Reports 2.8m of 665g/t AgEq and 4.0m of 367g/t AgEq from Underground Channel Sampling at the Puro Corazon Mine: Southern Silver Exploration (Cerro Las Minitas, Durango)
- Barksdale Completes Phase II Earn-In to Reach 67.5%Ownership of Sunnyside; Advances San Javier Gold Work: Barksdale Resources (San Javier, Sonora)
- Sonoro Gold Announces Initial 10,000 Meters Drilling Results from Ongoing Campaign at Cerro Caliche: Sonoro Gold (Cerro Caliche, Sonora)
- Mining Americas Announces Key Permit Approvals for Development of the Cerro de Oro Project in Northern Zacatecas, Mexico: Mining Americas (Cerro de Oro, Zacatecas)
- Goldgroup Highlights Exploration Potential at Don David: Goldgroup Mining (Don David, Oaxaca)
ON DEALS AND CORPORATE ISSUES
- Alamos Gold Announces Change to its Board of Directors: Alamos Gold (Mulatos, Sonora)
- Colibri Resource Corporation Announces Grant of Stock Options and Corporate Update: Colibri Resource (EP, Sonora)
- Teck Provides Information Related to the Anglo Special Dividend and the Merger: Teck Resources (San Nicolás, Zacatecas)
- Apollo Silver Announces Chief Financial Officer Transition: Apollo Silver (Cinco de Mayo, Chihuahua)
- Tocvan Provide Corporate Update: Tocvan Ventures (Gran Pilar, Sonora)
- Sonoro Gold Announces Management Appointments: Sonoro Gold (Cerro Caliche, Sonora)
- Goldgroup Files Second Quarter 2026 Financial Results and Provides Update on Combined Company: Goldgroup Mining (San Francisco, Sonora)
ON SOCIAL RESPONSIBILITY
- No Relevant News
On the image below: stepladder dikelet in northern Sonora. Picture by Jorge Cirett
Mexico’s Best Drilling Intercepts, First Week of September 2026
The table below displays drilling intervals from the one property that reported drilling results during the week.
Sonoro Gold presented results from the initial 10,000 m of its ongoing 50,000 m drilling campaign at Cerro Caliche, in Sonora. The intervals presented come from 46 reverse circulation drill holes completed at the central-western region of the property where the company intends to develop an open-pit, heap leach mining operation. “Infill drilling confirms geological continuity and expansion of known mineralized zones while step-out drilling confirms both lateral and depth extensions of the mineralized corridors. Infill drilling at the already significant mineralized vein zone of Buena Suerte also confirmed mineralization in areas previously designated as waste.” Cerro Caliche displays mineralization characteristic of low sulfidation epithermal deposits.
#Mexico #Mining #Exploration #Drilling #Gold #Silver
