Two companies presented results during the week from drilling campaigns of properties in Mexico.
Mithril Silver and Gold provided details on drilling at its Copalquín project in Durango. Recent drilling targeted the Copalquín-Zaragoza corridor, that now extends 550 m of strike-length, with the projected vein remaining untested 400 m to towards Target 1 (Refugio) and 600 m to Target 4 (San Manuel). Results on this zone also carry base metals values, probably reflecting an intermediate sulfidation phase of this predominantly low sulfidation epithermal system.
Minaurum Silver reported drill results from the Europa, Quintera-Travesía and San José vein zones. The holes reported are part of the 50,000 m Phase-II resource expansion drilling program. Mineralization at Alamos silver presents characteristics of intermediate sulfidation epithermal systems.
The Mining and Exploration News in Mexico: Highlights on the Fourth Week of August, 2026
By Miguel A Heredia
During the 35th week of the year (August 24 to August 30, 2026), at least 25 press releases were issued by companies operating in Mexico. Of these, six reported production results, six related to deals and corporate matters, six covered resource and development updates, six announced financing activities, and one presented exploration results. ON MEXICO ISSUES, No relevant news. ON EXPLORATION, In Sonora, Tocvan reported new surface exploration results from a target located 4km north of the main Zone at its Gran Pilar project. ON MINING, Orogen, Sailfish, Guanajuato Silver, Sierra Madre reported Q2, 2026 results. Silverco filed Q2, 2026 financial statements and MD & A and provided corporate update. Heliostar commenced the open pit mining at the Veta Madre in La Colorada mine, Sonora. ON FINANCING, Silver Storm increased the size of its previously announced non-brokered private placement from CAD $7.5M to CAD $15M. Silver Storm closed CAD $14.625M first tranche of non-brokered private placement and announced further upsize up to CAD $21M. Pinnacle extended the closing date of its previously announced non-brokered private placement to September 26, 2026. Algo Grande informed that it has upsized its previously announced non-brokered private placement from CAD $3M to up to CAD $5M. Alamos Gold declared quarterly dividend of USD $0.04 per common share. Centenario closed non-brokered private placement for gross proceeds of USD $1.5M. ONRESOURCES AND DEVELOPMENT, Silverco Mining provided la Negra mine operations update. GoGold announces the formal commencement of site construction at Los Ricos South in Jalisco. Minaurum reported drill results from the Europa, Quintera, and San Jose Vein zones as part of its ongoing Phase II, 50,000m resource-expansion drilling program at its Alamos Silver project in Sonora. First Majestic filed NI43-101 Technical Report for the Los Gatos mine, Chihuahua. Mithril reported drill results from its Copalquin project, Durango. Mammoth announced that it commenced field activities at its Tenoriba project, Chihuahua. ON DEALS AND CORPORATE ISSUES, Xali announced its participation at the upcoming Moody Capital Solution 2026 Disruptive Growth & Life Sciences Conference, taking place September 9–10, 2026, in New York City. Tocvan closed its purchase agreement with Colibri to acquire the remaining 49% interest in two original Pilar mining concessions, and now holds 100% ownership of its flagship Gran Pilar project in Sonora. Colibri completed the sale of 49% interest in the Pilar project in Sonora for CAD $3.6M plus 1% Net Smelting Royalty. Sonoro Gold acquired a 100% interest in 23 mineral concessions and up to 51% interest in five additional mineral concessions to further expand its Cerro Caliche project in Sonora. Mercado Minerals signed community agreement with Ejido Rincon de Ibonia at its Zamora project, Sinaloa. Silver Viper announced the resignation of Arthur Freeze as Director of the company, effective August 23, 2026. ON SOCIAL RESPONSIBILITY, no relevant news.
ON MEXICO ISSUE
No relevant news
ON EXPLORATION
Tocvan Announces New Surface Mineralization in Several Zones at Gran Pilar Gold-Silver Project: Tocvan Ventures Corp
ON MINING
Orogen Reports Strong Second Quarter Results, Reinforcing Growth and Financial Strength: Orogen Royalties Inc
Silver Storm Announces Upsize of Non-Brokered Private Placement to $15 Million: Silver Storm Mining Ltd
Silver Storm Closes $14.625 Million First Tranche of Non-Brokered Private Placement Led by Eric Sprott and Announces Further Upsize Up to $21 Million: Silver Storm Mining Ltd 1
GoGold Commences Construction of the Fully-Funded Los Ricos South Mine: GoGold Resources Inc
Minaurum Significantly Expands Quintera Vein Zone with 26 m of 369 g/t AgEq and Europa Sur Returns 3.4 m of 589 g/t AgEq: Minaurum Silver Inc
First Majestic Files NI 43-101 Technical Report for the Los Gatos Silver Mine: First Majestic Silver Corp
Mithril Drills Wide, High-Grade Intercepts Confirming 550m Strike with First Systematic Drilling in the Copalquin-Zaragoza Structure at target 4: Mithril Silver and Gold Limited
Mammoth Begins Field Activities at its Tenoriba Gold-Silver Property, Mexico: Mammoth Resources Corp
ON DEALS AND CORPORATE ISSUES
Xali Gold to Present at the Moody Capital Solutions 2026 Conference: Xali Gold Corp
Tocvan Completes Acquisition of Remaining 49% Interest in Original Pilar Concessions, Consolidating 100% Ownership of Flagship Gran Pilar Gold-Silver Project: Tocvan Ventures Corp
During the 34th week of the year (August 17th to August 23rd, 2026), 24 companies working in Mexico posted press releases. Four companies reported activities on early-stage properties. Six companies presented quarterly reports while one more informed on an illegal blockade. One company announced a financing round. One company filed a technical report, two more companies presented drilling results on advanced properties and one more announced a board appointment. Six companies presented news on deals and corporate issues. ON MEXICO ISSUES, Mexico has lost four years on the development of its lithium industry. ON EXPLORATION, In Sinaloa, Mercado Minerals completed its maiden drill program at Copalito. In Durango, Pinnacle Silver and Gold reported underground drilling results at Potrero; Pacifica Silver obtained a drilling permit for its Claudia project. In Oaxaca, EV Resources further defines antimony bearing veins. ON MINING, Starcore International Mines, Luca Mining, Santacruz Silver, Mining Americas, Impact Silver and Dyna Resource presented quarterly reports. Endeavour Silver informed on an illegal blockade to its Terronera mine in Jalisco. ON FINANCING. Silver Storm Mining announced a C$7.5 M private placement. ON RESOURCES AND DEVELOPMENT, Mithril Silver and Gold filed a technical report on Copalquín, in Durango. Goldgroup Mining released results from drilling at its Don David mine in Oaxaca. Oroco Resource presented its case for an improving permitting process in Mexico. Kingsmen Resources presented drilling results for Las Coloradas, in Chihuahua. ON DEALS AND CORPORATE ISSUES, GR Silver adopted an advance notice policy. Madoro Metals updated on its reverse takeover transaction. Royalties Inc. demanded production evidence from the Cozamín mine in Zacatecas. Vortex Metals made two appointments and informed on a services agreement. Silver Dollar announced AGM results. Newmont announced an appointment to the board. ON SOCIAL RESPONSIBILITY, no relevant news.
ON MEXICO ISSUES
Mexico has lost four years to develop it lithium industry, according to specialists. Lithium -El Imparcial
ON EXPLORATION
Pinnacle Provides First Results from Underground Drilling Program at El Potrero; Samples up to 59.2 g/t Au and 424 g/t Ag with Visible Gold: Pinnacle Silver and Gold (El Potrero, Durango)
Mercado Minerals Provides Summary of Copalito Drill Program, Highlights New Renata Vein and Phase II Exploration Plans: Mercado Minerals (Copalito, Sinaloa)
Pacifica Silver Secures 491 New Drill Pad Sites and Expands 2026 Drill Program to 30,000 Metres: Pacifica Silver (Claudia, Durango)
EV Resources, Four New Antimony Feeder Vein Systems Confirmed at Los Lirios – Resource Expansion Potential: EV Resources (Los Lirios, Oaxaca)
ON MINING
Endeavour Silver Reports an Illegal Blockade and Suspension of Operations at its Terronera Mine: Endeavour Silver (Terronera, Jalisco)
Endeavour Silver Provides Update on Blockade at its Terronera Mine: Endeavour Silver (Terronera, Jalisco)
DynaResource Reports Q2 2026 Results at the San José de Gracia Mine: DynaResource (San José de Gracia, Sinaloa)
Endeavour Silver Announces Removal of Blockade at its Terronera Mine: Endeavour Silver (Terronera, Jalisco
ON FINANCING
Silver Storm Announces $7.5 Million Non-Brokered Private Placement with Eric Sprott: Silver Storm Mining (La Parrilla, Durango)
ON RESOURCES AND DEVELOPMENT
Mithril Silver & Gold Announces Filing of Technical Report: Mithril Silver and Gold (Copalquín, Durango)
Permitting Progress in Mexico: What It Means for Santo Tomás: Oroco Resource (Santo Tomás, Sinaloa)
Goldgroup Reports Selected Drill Results Highlighting Growth Potential at Don David: Goldgroup Mining (Don David, Oaxaca)
Kingsmen Drills 1.40 Metres of 433 g/t AgEq (239 g/t Ag) at Las Coloradas, Expanding a High-Grade Silver Zone Open at Depth and Along Strike: Kingsmen Resources (Las Coloradas, Chihuahua)
ON DEALS AND CORPORATE ISSUES
GR Silver Adopts an Advance Notice Policy: GR Silver (Plomosas, Sinaloa)
Royalties Inc. Escalates Criminal Investigation by Formally Demanding Production Evidence at the Cozamin Mine: Royalties Inc. (Cozamin, Zacatecas)
Vortex Metals Engages Global Frontier Advisors and Appoints Ambassador Roberta Jacobson and Ambassador James Story to Advisory Board: Vortex Metals (Riqueza Marina, Oaxaca)
Silver Dollar Resources Announces AGM Results and Provides Operational Update: Silver Dollar Resources (La Joya, Durango)
Newmont Appoints Peter Beaven to Board of Directors: Newmont Corp. (Peñasquito, Zacatecas)
ON SOCIAL RESPONSIBILITY
No Relevant News
On the image below: Deformed dikelet in northern Sonora. Picture by Jorge Cirett
Four companies presented results during the week from drilling campaigns of properties in Mexico.
Goldgroup Mining reported drill results from its Don David mine in Oaxaca. These results are from over 25,000 m of underground and surface drilling from the second half of 2025 to date. The program included the Three Sisters-Gloria and Arista vein systems. “The results support near-term mine planning and ongoing production-replacement drilling while identifying areas with potential for future resource additions”. Mineralization at the property presents the characteristics of intermediate sulfidation epithermal systems.
Pinnacle Silver and Gold provided an update on underground drilling at its Potrero property in Durango. To date 58 out of 108 planned drill holes in this campaign have been completed. The intercepts included in the table below were drilled along the vein, while proving continuation of a high-grade shoot. The system at Potrero presents characteristics found on low sulfidation epithermal deposits.
Mercado Minerals completed its inaugural drill program at Copalito, in Sinaloa. The first-pass drilling confirmed the presence “confirmed the presence of the SE 5 Señores, Chente, El Pilar Sur and El Medio structures at depth, which have a cumulative mapped strike length of over 1,900 metres …”. Mineralization at Copalito presents characteristics of intermediate sulfidation epithermal systems.
Kingsmen Resources reported assay results from two additional drill holes at Las Coloradas, in Chihuahua. “Drilling has now intersected the Mine zone mineralization across a minimum strike length of 106 meters, in three drill fences spaced 50 meters apart, to a vertical depth of 155 meters. The mineralization is open at depth and along strike…”. The property presents characteristics of intermediate sulfidation epithermal systems.
