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During the 30^th week of the year (July 21^fst to July 27^th, 2025), companies working in Mexico presented 29 press releases. Three companies presented news on their early-stage properties. Five companies presented quarterly operational updates, one more restarted mining on an idle property and another had a pit wall failure. Seven companies reported on financial rounds. Two companies presented drilling results from their operating mine/advanced property and one more announced the commencement of a drill program.  Three companies reported on acquisition woes, litigation and appointments to the board. ON MEXICO ISSUES, no relevant news. ON EXPLORATION, In Sonora, Questcorp Mining informed on geologic mapping advances at La Unión; Xali Gold updated on exploration at Sarape. In Durango Pinnacle Silver and Gold presented underground channel sample results. ON MINING, Heliostar Metals is restarting mining operations at San Agustin. Avino Silver & Gold Mines, Mag Silver, Teck Resources, Gold Royalty and Newmont presented Q2 2025 results. Orla Mining informed on a pit wall collapse. ON FINANCING, seven companies informed on financing rounds: Goldgroup Mining (C$12 M), Sierra Madre Gold and Silver (C$17.75 M), Mammoth Resources (C$0.55 M), Mithril Silver and Gold (C$11.5 M), Garibaldi Resources (C$1.02 M), Pacifica Silver (C$1.0 M) and Pinnacle Silver and Gold (US$1.65 M). ON RESOURCES AND DEVELOPMENT, Kootenay Silver is to start drilling at Columba in Chihuahua. Guanajuato Silver Company released drilling results from San Ignacio, in Guanajuato. GR Silver Mining announced drilling results from the San Marcial deposit at Plomosas in Sinaloa. ON DEALS AND CORPORATE ISSUES, Sierra Metals complained about comments by Alpayana SAC. Guanajuato Silver has been sued by a service provider. Equinox Gold announced changes to the board. ON SOCIAL RESPONSIBILITY, no relevant news.

ON MEXICO ISSUES

• No Relevant News.

ON EXPLORATION

• Pinnacle Silver and GoldCorp. Presented results from underground channel sampling in the historic Pinos Cuates mine at El Potrero project in Durango. Highlighted results of composite samples comprise 1.0 m @ 34.6 gpt Au, 228 gpt Ag; 1.7 m @ 50.3 gpt Au, 269 gpt Ag; 4.2 m @ 9.8 gpt Au, 141 gpt Ag, 1.8 m @ 8.3 gpt Au, 8 gpt Ag. “A total of 42 channel samples were taken in 16 composite channels in the raise. Grades ranged from 0.105 to 85.1 g/t Au and 9 to 520 g/t Ag … The Pinos Cuates mine is the middle of three historic mines along a 500 metre strike length on the Dos de Mayo vein system on the Potrero property. Underground sampling is continuing at the Dos de Mayo mine to the southeast and will be followed by sampling of the La Dura mine to the northwest. The vein system has been traced on surface for 1,600 metres”.
• Xali Gold Corp. has completed strategic data compilation studies on the Sarape project, under option from Advanced Lithium Corp. in Sonora. The low sulfidation epithermal mineralization presents in two veins: The 3 to 12 m wide Sarape vein recognized for 5,000 m, and the 3 m wide Chiltepin vein traced over 2,500 m on the surface. The classic boiling textures, near-equal proportions of quartz and calcite, and anomalous Sb-Au-Ag values suggest that the veins represent the upper levels of a low sulfidation epithermal system with good potential for stronger mineralization at depth. Highlighted core length intervals from 2019 drilling include 4.26 m @ 0.52 gpt Au, 11 gpt Ag; 1.4 m @ 0.55 gpt Au, 31 gpt Ag; 2.24 m @ 0.57 gpt Au, 24 gpt Ag; 11.57 m @ 0.22 gpt Au, 6 gpt Ag; 6.75 m @ 1.49 gpt Au, 7 gpt Ag.
• Questcorp Mining Inc. informed of on-going surface exploration in preparation for drilling at La Union project in Sonora, on which the company has an option to earn 100% interest. Multiple stacked thrust faults have been identified in the mineralized area, enhancing the potential. “Rock and soil sampling continues with numerous samples dispatched to the laboratory for analysis”.

ON MINING

• Heliostar Metals Ltd. announced the restart of operations at the San Agustin mine, in Durango, from where currently the company produces gold from residual leaching. Heliostar plans to mine the Corner area to produce 45,000 Oz Au, generating US$40 M in cashflow at a US$3,000 gold price. In July 2025 Heliostar complied with all required applications and received the required approval to undertake this open pit expansion and received the authorization to increase the height of the San Agustin leachpad from 77 to 88 m in height. Preliminary work is to be carried out in Q3 and Q4, allowing to first stacking of new ore and new gold production in Q4, 2025. Immediate focus for growth is on near-surface oxide material, of which several targets for exploration have been recognized.  A large low grade sulfide mineralized volume underlies the oxide material, but a few higher grade intervals have been intercepted, like 297 m @ 0.49 gpt Au, 25 gpt Ag, 0.2% Pb, 1.0% Zn and 196 m @ 0.60 gpt Au, 15 gpt Ag, 0.1% Pb, 1.0% Zn. The last model built by Heliostar geologists implies that the bulk of the gold and silver mined to date is from an intermediate sulfidation vein system that sits above intrusive related breccias. This interpretation generated four new porphyry/breccias targets for drill testing.
• Avino Silver & Gold Mines Ltd. released production figures for the second quarter of 2025. At the Avino mine in Durango, the company processed 191 K tonnes averaging 55 gpt Ag, 0.39 gpt Au, 0.42% Cu, recovering 85% Ag, 74% Au, 83% Cu, to produce 283.6 K Oz Ag, 1,774 Oz Au, 1.46 M Oz Ag (645.6 K Oz AgEq). Construction of the 360 m San Fernando main access at La Preciosa is underway. At the end of the period the company had US$37 M in cash, remaining debt-free.
• Mag Silver Corp. reported production from Juanicipio (56% Fresnillo plc/44% Mag Silver), in Zacatecas. All results are on a 100% basis: 343 K tonnes were milled, grading 417 gpt Ag, 1.21 gpt Au, 1.71% Pb, 3.34% Zn, to produce 4.34 M Oz Ag, 10,465 Oz Au, 11.55 M Lb Pb, 20.5 K M Lb Zn.
• Teck Resources Ltd. reported unaudited second quarter results for 2025. The company, that does not have operating mines in Mexico, had C$2,023 M in revenue, for gross profit of C$471 M and a gros profit before depreciation and amortization of C$832 M with an EBITDA of C$722 M (Developing San Nicolas mine in Zacatecas; 50% Teck, 50% Agnico Eagle).
• Orla Mining Ltd. provided an update on the recent pit wall event at its Camino Rojo mine in Zacatecas. “Camino Rojo experienced an uncontrolled material movement on the temporary north wall within the open pit. There were no injuries, nor was there any damage to equipment or the environment as a result of the event”. Although ramp access to the pit remains unaffected open pit operations were temporarily suspended while the necessary geotechnical assessments are conducted to ensure safe remediation and the eventual resumption of mining. Approximately 390 K tonnes of material moved into the pit, material that will be crushed and staked on the heap leach in the medium term. Crushing and stacking of run-of-mine ore and stockpile material will continue, to mitigate the short-term impact on production with a current stockpile of 2.24 M tonnes averaging 0.32 gpt Au.
• Gold Royalty Corp. announced preliminary results for the second quarter of 2025. Total revenue, land agreement proceeds and interest amounted to US$4.4 M. Gold Royalty maintains its 2025 full-year production guidance of 5,700 to 7,000 Oz AuEq (Royalty on Cozamin, Zacatecas).
• Newmont Corp. presented second quarter 2025 results, and an additional US$3 B share repurchase program. The company reported net income of US$2.1 B an adjusted EBITDA of US$3.0 B. The company had a consolidated production of 1,478,000 Oz Au, of which 148,000 Oz Au were produced at Peñasquito, in Zacatecas, at an AISC of $944 per Oz Au. Peñasquito also produced 8 M Oz Ag, 27 K tonnes Pb, 67 K tonnes Zn.

ON FINANCING

• Goldgroup Mining Inc. has revised the terms of its previously announced non-brokered private placement for aggregate gross proceeds of up to C$12 M (La Parrilla, Durango).
• Sierra Madre Gold and Silver Ltd. upsized its previously announced “best efforts” private placement to aggregate gross proceeds of up to C$19.5 M (La Guitarra, Estado de México).
• Mammoth Resources Corp. announced the closing of a first tranche of its upsized private placement of up to C$980 K for gross proceeds of C$546 K (Tenoriba, Chihuahua).
• Sierra Madre Gold and Silver Ltd. closed the first tranche of its previously announced private placement for aggregate gross proceeds of US$17.75 M. Certain directors and officers of the company participated in the offering subscribing units for US$480 K. “In connection with the closing of the First Tranche, the Company paid the Agents a cash fee of $1,171,933 and issued to the Agents 1,674,190 compensation options” (La Guitarra, Estado de Mexico).
• Mithril Silver and Gold Ltd. closed its previously announced brokered private placement for aggregate gross proceeds of C$11.5 M. The company paid a cash fee of C$690 K to the agents representing 6% of the gross proceeds of the offering and issued to the agents 1.92 M shares representing 6% of the aggregate number of shares issued by the company under the offering (Copalquin, Durango).
• Garibaldi Resources Corp. “announces that, further to its News Releases of May 9, 2025, July 4, 2025 and July 18, 2025, the number of units (each, a “Unit”) sold and the dollar amount raised in the non-brokered private placement (the “Offering”) were incorrectly stated. The correct amount of Units sold is 14,537,702 Units at a price of $0.07 per Unit for gross proceeds of $1,017,639.16. The Offering was oversubscribed by $17,639.16” (Rodadero, Sonora).
• Pacifica Silver Corp. closed its previously announced non brokered private placement for C$1 M in gross proceeds. No finder’s fee was paid under the offering. CEO Mr. Todd Anthony and Mr. Ramon Medoza, a director of the company, subscribed for C$100 K and C$10 respectively, with their participation being considered a related party transaction (Claudia, Durango).
• Pinnacle Silver and Gold Corp. increased its non-brokered private placement to now raise gross proceeds of up to US$1.65 M (El Potrero, Durango).

ON RESOURCES AND DEVELOPMENT

• Kootenay Silver Inc. announced drill crews will arrive at the Columba project in Chihuahua by month’s end. Two drill rigs are to start the 50,000 m drilling program during the month of August. “The first 25,000 to 30,000 meters will focus on expanding the size of existing resource bodies in the D, F, and B/Lupe Veins. The mineralized zones in all veins remain open either down dip, along strike or both directions”. A recently published mineral resource of 5.92 M tonnes grading 284 gpt Ag, 0.19% Pb, 0.50% Zn contains 54.1 M Oz Ag, 25.2 K tonnes Pb, 65.6 K tonnes Zn.
• Guanajuato Silver Company Ltd. released results from drilling at its San Ignacio property in Guanajuato. Nine underground holes have been completed in 1,000 metres of drilling on the Santo niño and Melladito and Nombre de Dios zones. Highlighted true width intercepts comprise 1.30 m @ 1.5 gpt Au, 24 gpt Ag; 1.30 m @ 1.7 gpt Au, 5 gpt Ag; 2.10 m @ 4.3 gpt Au, 353 gpt Ag; 0.44 m @ 2.4 gpt Au, 14 gpt Ag; 0.99 m @ 1.1 gpt Au, 13 gpt Ag; 0.61 m @ 1.4 gpt Au, 22 gpt Ag; 1.08 m @ 2.5 gpt Au, 3 gpt Ag; 2.34 m @ 4.9 gpt Au, 165 gpt Ag; 8.20 m @ 5.7 gpt Au, 54 gpt Ag (including 0.60 m @ 15.1 gpt Au, 13 gpt Ag; 0.83 m @ 13.7 gpt Au, 158 gpt Ag); 1.06 m @ 28.5 gpt Au, 164 gpt Ag; 4.46 m @ 2.2 gpt Au, 99 gpt Ag. “The mineralization highlighted within the tables above is within proximity to existing infrastructure and the Company expects to expedite development to these zones so that they can be sequenced for extraction in 2025”.
• GR Silver Mining Ltd. announced drilling results from the on-going step-by drilling program in two areas of the San Marcial deposit within its 43,187 ha Plomosas project in Sinaloa. The company is exploring and validating the extension of mineralization near the resource area. “Comprehensive interpretation and 3D modelling of ground geophysical data have outlined a large, regional intrusive-related anomaly”. A hydrothermal breccia has returned wide intervals of Ag mineralization with higher grades exhibiting intense chloritization, a hallmark in the San Marcial district. Highlighted core length intervals comprise 18.0 m @ 0.02 gpt Au, 32 gpt Ag, 0.1% Pb, 0.1% Zn; 23.3 m @ 0.01 gpt Au, 44 gpt Ag, 0.2% Pb, 0.3% Zn; 26.0 m @ 0.01 gpt Au, 114 gpt Ag, 0.1% Pb, 0.2% Zn (including 11.9 m @ 0.01 gpt Au, 214 gpt Ag, 0.2% Pb, 0.3% Zn); 36.0 m @ 0.28 gpt Au, 121 gpt Ag, 0.1% Pb, 0.1% Zn (including 0.4 m @ 1.14 gpt Au, 641 gpt Ag, 0.1% Pb, 0.1% Zn and 0.3 m @ 0.08 gpt Au, 1,982 gpt Ag, 0.5% Pb, 0.2% Zn); 0.4 m @ 10.30 gpt Au, 726 gpt Ag, 0.1% Pb, 0.1% Zn; 0.2 m @ 34.30 gpt Au, 2,359 gpt Ag, 0.1% Pb, 0.1% Zn.

ON DEALS AND CORPORATE ISSUES

• Sierra Metals Inc. stated that Alpayana S.A.C. made unfounded allegations in a press release relating to the takeover and demanded in a letter to deprive key senior officers of Sierra Metals of employee entitlements on a change of control by amending contractually agreed terms. To read the lengthy argument, please read the news release: https://gambusinoprospector.com/wp-content/uploads/2025/07/2025-07-21_sierra-metals-responds-to-alpayana.pdf (Bolívar, Chihuahua).
• Guanajuato Silver Company Ltd. announced that NucTech Mexico, S.A. de C.V. has commenced litigation in Mexico City against the company. NucTech alleges that Guanajuato Silver has not compensated it for the installation and use of NucTech’s mineral sorting equipment at the San Ignacio mine in Guanajuato and is claiming compensation for future equipment rentals over a 10-year period. The Company believes that the litigation has no merit and will vigorously defend itself.
• Equinox Gold Corp. announced Greg Smith has stepped down as chief executive officer (CEO) and Director, and Darren Hall, current president and chief operating officer (COO), has been appointed Chief Executive Officer and Director (Los Filos, Guerrero).

ON SOCIAL RESPONSIBILITY

• No Relevant News.

On the image below: Chlorite lined fracture with late calcite center in monzonite porphyry on HQ core. Picture by Jorge Cirett.