Blog posts

By Miguel A Heredia

During the 37^th week of the year (September 8^th to September 14^th 2025), at least 39 press releases were announced by companies working in Mexico, with nineteen disclosing deals and corporate issues, eight reporting resources and developments of their properties, seven informing on exploration results, four announcing financial rounds, and one commenting on Mexican issues. ON MEXICO ISSUES, Pan American, Coeur, Luca Mining, GoGold, and Axo Copper reported the best drilling intercepts in Mexico on the second week of September, 2025. ON EXPLORATION, In Sonora, Questcorp provided an update of the ongoing drilling program at its la Union project. Fortuna Mining provided an update on its generative exploration program across its portfolio of properties in Mexico. In Sinaloa, Chesapeake provided an update on its regional exploration activities at its Lucy project. In Durango, Pacifica Silver revealed details of its upcoming exploration program at its Claudia project, and Pinnacle released underground channel sampling results from its Potrero project. In Zacatecas, Defiance Silver reported that a new drilling program commenced at its Zacatecas project. In Jalisco, Axo released results from its recently initiated drill program at its la Huerta project and announced that it has begun its regional drill program at the La Huerta South target. ON MINING, No relevant news.  ON FINANCING, Vizsla Royalties spotlighted that Vizsla Silver entered in a USD $220M project finance mandate to fund the development of its Panuco project in Sinaloa. Sonoro Gold closed its previously announced oversubscribed, non-brokered private placement for gross proceeds of CAD $2M (Cerro Caliche project, Sonora). Goldgroup closed its previously announced non-brokered private placement for gross proceeds of CAD $$M (Cerro Prieto mine, Sonora). Vortex announced a non-brokered private placement for gross proceeds of up to CAD $600K (Riqueza Marina and Zaachila projects, Oaxaca). ON RESOURCES AND DEVELOPMENT, Kootenay completed 2,500m in five holes drilled at its Columba project in Chihuahua. Luca Mining released results of six holes totalling 1,656m from its ongoing underground and surface drilling programs of its Tahuehueto mine in Durango.  Sierra Madre Gold and Silver announced its two-staged plan to expand their Guitarra mine´s processing capacity. Chesapeake reported progressing metallurgical test on its Metates project in Durango, with promising results toward a 2026 prefeasibility study. GoGold announced strong drilling results at its Los Ricos South project in Jalisco. Pan American Silver released drill results from the program designed to test the eastern zone of the La Colorada mine in Zacatecas. Coeur Mining released high-grade drilling results from its 2025 drill plan at its Las Chispas mine in Sonora. Pan American Silver presented consolidated mineral reserves and mineral resources as at June 30, 2025 of all of their mining operations (La Colorada mine, Zacatecas). ON DEALS AND CORPORATE ISSUES, Mithril announced that it intends to have its annual general meeting on Wednesday November 5, 2025 (Copalquin project, Durango). Aura Minerals applied for a voluntary delisting of its common shares from the Toronto Stock Exchange (Aranzazu mine, Zacatecas). Orogen announced that its shares will be trading on the OCTQB effective immediately under the symbol OGNNF (Ermitaño mine, Sonora). Sailfish declared Q3, 2025 dividend (Gavilanes project, Durango). Torex Gold reported that it was recognized as a top performer by the Toronto Stock Exchange (TSX) for 2025 (Morelos Complex, Guerrero). Alamos Gold declared that for second year consecutive it has been recognized as a TSX30 2025 winner by the TSX (Mulatos mine, Sonora). Agnico Eagle announced disposition of its interest in Orla Mining (Pinos Altos mine, Chihuahua). Prime filed and mailed its notice of meeting and management information circular to approve plan of arrangement with Torex Gold (Los Reyes project, Sinaloa). Impact announced shareholder approval of omnibus equity incentive plan (Plomosas mine, Chihuahua).  GR Silver received five-year drill permit for the San Marcial area at its Panuco project in Sinaloa. Apollo Silver announced that the company will proceeds with a consolidation of its issued and outstanding common shares (Cinco de Mayo project, Chihuahua). Heliostar reported that it has been approved for graduation from Tier 2 to Tier 1issuer status on the TSX (Ana Paula project, Guerrero). Kingsmen announced voting results of its annual general and special meeting of shareholders (Las Coloradas project, Chihuahua). Vizsla Royalties appointed a new Independent Director (Panuco project, Sinaloa). Teck and Anglo American reached an agreement to combine in a merger for equals to form the Anglo Teck Group. Quetzal Copper refilled its Q2, 2025 financial statements and Management Discussion & Analysis (Cusi property, Chihuahua). Canasil confirmed that the British Columbia Securities Commission approved the full revocation of the cease trade order (Sandra project, Durango). Candelaria provided an update to its management cease trade order announced on August 29, 2025 (Caballo Blanco project, Veracruz). Fuerte metals issued a statement to a request from the Canadian Investment Regulatory Organization regarding a recent increase in the market price of its shares (Cristina project, Chihuahua). ON SOCIAL RESPONSIBILITY, No relevant news.

ON MEXICO ISSUES

• Pan American Silver Corp, Coeur Mining Inc, Luca Mining Corp, GoGold Resources Inc, and Axo Copper Corp., reported the best drilling intercepts in Mexico on the second week of September, 2025. Details are shown in the table below:

ON EXPLORATION

• Questcorp Mining Inc., provided an update on the Phase 1 ongoing drilling program at its la Union project in Sonora. The company has completed drill holes at two of four target areas with promising intersections in oxides zones associated with past mineralization. The drilling has revealed more quartzite than expected which could indicate good conditions for gold due to fractures and oxidation. Questcorp is now focusing its drilling exploration efforts at the Famosa target.
• Fortuna Mining Corp., provided an update on its generative exploration program across its portfolio of properties in Mexico. At the Centauro project in Chihuahua, the company conducted geological mapping, geochemical sampling, and the identification of a large 2km by 3km silica-capped with features typical of a preserved hydrothermal system, such as sinter horizons, silica banding, mud cracks and geyserites. Several north-west trending silicified structures have been outlined, and along with the low temperature sulfides such as realgar, orpiment, cinnabar, and stibnite, confirm the presence of structures consistent with a fertile epithermal system. The plan moving forward is to commence a first pass drill campaign next month to test the potential for a low to intermediate epithermal sulfidation gold and silver system at depth, aiming to explore and delineate mineralization within the identified structures. Fortuna has the option to earn 100% interest in three mining concessions covering 600 hectares. At El Carmen project in Queretaro, activities realized to date include initial mapping on a large 5km by 5km kaolin-altered area locally exposed beneath a post-mineral basalt cover, which has identified three main target areas characterized by well-developed displacement faults, sub horizontal zones of silicification, and the presence of cinnabar, all indicative of the potential for a fully preserved epithermal system at depth. Once the company secured surface access over the principal target areas, it will commence detailed geological mapping and systematic geochemical sampling, supported by hyperspectral analysis to better understand its mineralization potential to design a maiden drill program.
• Chesapeake Gold Corp., provided an update on its regional exploration activities at its Lucy project in Sinaloa. Recent work has identified new mineralized zones, including a potential new corridor with gold mineralization. The project shows promise for extending over 3 kilometers, suggesting that the mineralization system at Lucy is bigger than it was originally thought. Ongoing trenching, sampling, and permitting activities are been carried out at the property with the goal of delineating its mineral potential.
• Pacifica Silver Corp., revealed details of its upcoming exploration program at its Claudia project in Durango. The company plans to drill an initial 8,000m Phase 1 drill campaign, expected to begin at the end of September, and conduct a property-wide exploration program consisting of surface sampling, geological mapping, and a 27-line km induce polarization (IP) and resistivity geophysical survey.
• Pinnacle Silver and Gold Corp., released underground channel sampling results from the Dos de Mayo mine within its Potrero project in Durango. “Fifty-three channel samples, in 13 composite channels, were taken within a raise (inclined tunnel approximately 1.5m in diameter) connecting two levels 25.5m apart. Composite assays up to 11.2 g/t Au and 179 g/t Ag over 3.5m, 15.55 g/t Au and 222 g/t Ag over 1.1m and 11.93 g/t Au and 190 g/t Ag over 1.4m were obtained, with individual assays up to 27.6 g/t Au and 366 g/t Ag over 0.6m.  The weighted average of mineralized composites within the raise assayed 6.43 g/t Au and 110 g/t Ag”.  The company is planning an underground drilling program in all three main mines at Potrero project.
• Defiance Silver Corp., reported that a new 10,000m oriented-core drilling program commenced at its Zacatecas project in Zacatecas state.
• Axo Copper Corp., released results from its recently initiated phase II drill program at its la Huerta project in Jalisco. The most significant drill interception was encountered in hole LHCC-25-045 with 2.89% Cu and 15 g/t Ag (3.08% CuEq) over a length of 13.2m, including 4.86% Cu and 30 g/t Ag (5.24% CuEq) for a length of 6.4m. Mineralization encountered in this hole consists of chalcopyrite and bornite hosted in andesitic rocks. Higher Cu grades are related to bornite patches. To date, 3,288m have been drilled as part of a 15,000m phase II drilling program. Axo also announced that it has begun its regional drill program at the La Huerta South target.

ON MINING

• No relevant news.

ON FINANCING

• Vizsla Royalties Corp., spotlighted that Vizsla Silver Corp., entered in a USD $220M project finance mandate with Macquarie Bank Limited to fund the construction and development of its high grade underground Panuco project in Sinaloa.
• Sonoro Gold Corp., closed its previously announced oversubscribed, non-brokered private placement of 13,350,000 units at a price of CAD $0.15 per unit for gross proceeds of CAD $2M. Net proceeds will be used to fund the ongoing development of its Cerro Caliche project in Sonora, and for general working capital purposes.
• Goldgroup Mining Inc., closed its previously announced non-brokered private placement of 4,848,485 units at a price of CAD $0.825 per unit for gross proceeds of CAD $$M. The gross proceeds will be dedicated to the diligent assessment and strategic pursuit of acquisition opportunities (Cerro Prieto mine, Sonora).
• Vortex Metals Inc., announced a non-brokered private placement of up to 15,000,000 units at a price of CAD $0.04 per unit for gross proceeds of up to CAD $600K. Net proceeds will be used as follow: approximately 40% to pay for mining concession fees, approximately 40% to pay for exploration fees and remaining 20% for general working capital purposes (Riqueza Marina and Zaachila projects, Oaxaca).

ON RESOURCES AND DEVELOPMENT

• Kootenay Silver Inc., reported that it drilled five holes at its Columba project in Chihuahua. These holes totalling 2,500m were completed on the D and I Vein Targets, and are part of the first phase of a planned 50,000m drilling program designed to expand known limits of mineralized veins comprising the recently announced 43-101 compliant mineral resource estimate.
• Luca Mining Corp., released results from its ongoing underground and surface drilling programs of its Tahuehueto mine in Durango. Six holes are already been completed for a total of 1,656m. Drilling highlights are shown in the table below:

• Sierra Madre Gold and Silver, announced its two-staged plan to expand their Guitarra mine´s processing capacity from 500 tonnes to between 750 and 800 tonnes per day by mid-2026 through new facilities such as a paste fill plant and thickener plant, as well as additional crushers; and then between 1,200 and 1,500 per day by late 2027 with a new dry stack tailings storage facility, a second crushing circuits, and replacing a smaller capacity ball mill. The company intends to fund these expansions using their existing cash flow and recent private placement, avoiding new capital raises.
• Chesapeake Gold Corp., reported progressing metallurgical test on its Metates project in Durango, with promising results toward a 2026 prefeasibility study. Metallurgical testwork on Metates using its proprietary sulphide leach technology shows early encouraging results, indicating that the oxidation process is meeting expectations, attracting industry interest. Now, other companies have considered to test the Chesapeake´s leach process technology on a wide range of deposits, which could open up new chances for the company to start commercializing the process as an eventual significant source of value generation for Chesapeake.
• GoGold Resources Inc., announced strong drilling results at its Los Ricos South project in Jalisco. Based on reconstruction of the historical data and a new IP geophysics survey conducted this year, a systematic step-out drilling program commenced in January 2025, to test the down dip, the southern strike extension of the Abra Zone towards Los lamas, and the Cerro Colorado deposit. The company found high-grade silver and gold mineralization beyond their current resource area, notably in the Eagle, Abra, and Cerro Colorado zones. Highlights include impressive silver equivalent grades over notable widths, signaling potential for resource expansion and deeper extensions of known veins. Drilling highlights are shown in the table below:

• Pan American Silver Corp., released drill results from the program designed to test the eastern zone of the La Colorada mine in Zacatecas. These results are from the drilling campaign carried out from November 2024 to June 2025 with approximately 65,000m in 170 holes. Multiple high grades were encountered indicating the potential for expansion of silver mineral resources, extension of mine life and improved economics. These results are Drilling highlights are shown in the table below:

• Coeur Mining Inc., released drill results from its 2025 drill plan at its Las Chispas mine in Sonora. The 2025 drill plan was modified and refocused around the Las Chispas operation to test high-priority targets including strike and depth extensions and infill drilling at the Babicanora and Las Chispas Block. It also continues to follow up on recent discoveries in the Gap Zone located between the Babicanora and Las Chispas Blocks on multiple veins such as Augusta, La Sorpresa, Los Sheiks, North Las Chispas, and Las Chispas Extensions. The drilling results have been highly successful, revealing some of the highest grades encountered in the project to date. Notably, North Las Chispas Vein returned an intercept of 158 g/t Au and 13,430 g/t Ag over 0.30m, bonanza levels with exceptional high-grade mineralization. The Augusta vein has also demonstrated significant expansion, with intercepts of up to 27.7g/t Au and 3,903 g/t Ag over 0.40m, confirming continued growth along strike. Overall, the results highlight substantial high-grade potential and ongoing resource expansion in multiple veins within the Las Chispas district, which have been ramped up to nine drill rigs to target additional resource growth. The most significant results are shown in the table below:

• Pan American Silver Corp., reported consolidated mineral reserves and mineral resources as at June 30, 2025. It presented separate figures for La Colorada mine in Zacatecas, and for its La Bolsa property in Sonora, which are shown in the table below:

ON DEALS AND CORPORATE ISSUES

• Mithril Silver and Gold Limited announced that it intends to have its annual general meeting on Wednesday November 5, 2025 (Copalquin project, Durango).
• Aura Minerals Inc., applied for a voluntary delisting of its common shares from the Toronto Stock Exchange (TSX). The application has been approved by the company´s Board of Director and the TSX. It is expected that the common shares will be delisted from the TSX effective as of the close of markets on September 25, 2025 (Aranzazu mine, Zacatecas).
• Orogen Royalties Inc., announced that its shares will be trading on the OCTQB effective immediately under the symbol OGNNF (Ermitaño mine, Sonora).
• Sailfish Royalty Corp., declared Q3, 2025 dividend in the amount of USD $0.0125 per common share that will be payable on October 15, 2025 to company´s shareholders of record as of the close of business on September 30, 2025 (Gavilanes project, Durango).
• Torex Gold Resources Inc., reported that it was recognized as a top performer by the Toronto Stock Exchange (TSX) for 2025 having been named to the TSX30, which is based on share price performance, adjusted for dividends, over the three-year period ending June 30, 2025 (Morelos Complex, Guerrero).
• Alamos Gold Inc., declared that for second year consecutive it has been recognized as a TSX30 2025 winner by the TSX. The annual ranking recognizes the 30 top performing stocks based on their dividend-adjusted share price performance over a three-year period (Mulatos mine, Sonora).
• Agnico Eagle Mines Limited announced disposition of its interest in Orla Mining Ltd. The company sold 38,002,589 shares of Orla Mining for about CAD $560.5M at a sale price of CAD $14.75 per share, aimed to redeploy capital to strategic priorities (Pinos Altos mine, Chihuahua).
• Prime Mining Corp., filed and mailed its notice of meeting and management information circular to approve plan of arrangement with Torex Gold. The special meeting of shareholders will be held on September 29, 2025 (Los Reyes project, Sinaloa).
• IMPACT Silver Corp., announced shareholder approval of omnibus equity incentive plan to replace its 10% fixed stock option plan to originally adopted on December 21, 2025 (Plomosas mine, Chihuahua).
• GR Silver Mining Ltd., received five-year drill permit for the San Marcial area at its Panuco project in Sinaloa. Now the company is allowed to carry out step-out and exploration drilling at 46 new drill sites at San Marcial. GR Silver plans to complete the final 3 drill holes of its summer drilling program, to conduct additional down-hole geophysical surveys in key drill holes within the resource area, and advance additional drilling under the new drill permit.
• Apollo Silver Corp., announced that the company will proceeds with a consolidation of its issued and outstanding common shares on the basis of five pre-consolidated shares for every one post-consolidated share. The consolidation will take effect on September 15, 2025. (Cinco de Mayo project, Chihuahua).
• Heliostar Metals Ltd., reported that it has been approved for graduation from Tier 2 to Tier 1issuer status on the TSX (Ana Paula project, Guerrero).
• Kingsmen Resources, announced voting results of its annual general and special meeting of shareholders. In this annual meeting, shareholders also approved a new 10% rolling omnibus equity incentive plan (Las Coloradas project, Chihuahua).
• Vizsla Royalties Corp., appointed a new Independent Director effective immediately. The company also has granted an aggregate of 150,000 stock options and 250,000 cash-settled Deferred Share Units to certain directors and officers (Panuco project, Sinaloa).
• Teck Resources Limited and Anglo American plc reached an agreement to combine in a merger for equals to form the Anglo Teck Group. The merger aims to create a leading diversified mining company focused on critical minerals, particularly copper. The merge anticipates pre-tax recurring annual synergies of USD $800M and an additional USD 1.4B B in underlying EBITDA revenue synergies. Boards of Teck and Anglo American unanimously support and recommend the merger.
• Quetzal Copper Corp., refilled its Q2, 2025 financial statements and Management Discussion & Analysis. The amendment was made to correct and clarify disclosure relating to the company's share-based compensation (Cusi property, Chihuahua).
• Canasil Resources Inc., confirmed that the British Columbia Securities Commission approved the full revocation of the cease trade order (CTO), as a result of the company’s failure to file its interim financial statements for the period ended September 30, 2023. The full revocation of the CTO is a very positive development leading to a return to normal trading of the company´s securities (Sandra project, Durango).
• Candelaria Mining Corp., provided an update to its management cease trade order announced on August 29, 2025 “in respect of the audited annual financial statements and corresponding management's discussion and analysis for the year ended April 30, 2025, including the CEO and CFO certifications that were not filed by the required filing deadline of August 28, 2025”. The company is working expeditiously on the steps required to complete the Annual Financial Filings and expects to be able to file the Annual Financial Filings by September 28, 2025 (Caballo Blanco project, Veracruz).
• Fuerte Metals Corporation issued a statement to a request from the Canadian Investment Regulatory Organization regarding a recent increase in the market price of its shares. Fuerte Metals is currently engaged in discussions about a potential transaction, though no agreement has been reached yet. The company clarified that the rise in trading activity is noted, but there are no specific details provided about the causes of the increase or any material developments at this time.

ON SOCIAL RESPONSIBILITY

• No relevant news.

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 above, mushketovite in an IOCG project in Sonora, Mexico. Photo taken by Miguel A Heredia.