Coahuila
The Mining and Exploration News in Mexico: Highlights on the Third Week of August 2023

By Jorge Cirett
During the 33rd week of the year (August 14th to August 20th, 2023), 18 companies working in Mexico posted news releases. Two companies informed on exploration work at its properties, three reported second quarter 2023 results and one more of a fatality on an underground mine. One company informed on a private placement and one more on incentive option granting to directors, employees and consultants. Four companies informed on technical reports, updated mineral resources, drilling results and metallurgical testing on their projects. The closing on the transfer of a property in Durango was announced. ON MEXICO ISSUES, Camimex ask for the government intervention to reach an end to the Peñasquito mine strike, which begun in early June, and also for speedier action on environmental permitting. ON EXPLORATION, in Sonora, Colibri Resource received the permit to drill at Evelyn. In Coahuila, Monumental Minerals updated on its drilling program at Jemi. ON MINING, Guanajuato Silver reported a fatality on one of its mines. Sierra Metals, Discovery Silver and Americas Gold and Silver released production results for Q2 2023. ON FINANCING, Barksdale granted options to directors, employees and consultants. Oroco Resource raised $1.75 M. ON RESOURCES AND DEVELOPMENT, Golden Tag updated the mineral resource estimate for La Parrilla, in Durango. GR Silver Mining released drilling results from the San Marcial deposit on its Plomosas project in Sinaloa. Sierra Madre Gold and Silver released drilling results from the Tepic project in Nayarit. Silver Tiger Metals released drilling results from El Tigre, in Sonora. Vizsla Silver announced positive metallurgical test results for the Copala resource area on its Panuco project in Sinaloa. ON DEALS AND CORPORATE ISSUES, First Majestic Silver and Golden Tag Resources closed the transaction on La Parrilla mine in Durango. ON SOCIAL RESPONSIBILITY, no relevant news. ON MEXICO ISSUES
- Camimex (Cámara Minera de México) asks relevant authorities to contribute in the solution to the Peñasquito strike in Zacatecas, and to act more speedily on the granting of environmental permits needed.
ON EXPLORATION
- Colibri Resource Corp. received the necessary permit to drill up to 2,000 m on the Evelyn property in Sonora. The program is focusing on the Main Zone and West El Sahuaro areas.
- Monumental Minerals Corp. provided an update on the current drill program at the Jemi project in Coahuila. To date 1,800 m have been drilled targeting rare earth mineralization, with 12 holes completed and a final one underway, with results expected in about three weeks. “Numerous intrusive peralkaline dykes, sills, and veins, with identifiable eudialyte … were intersected in the completed holes … These peralkaline dykes and sills tend to occur in structural zones that appear to be adjacent to larger bodies of syenitic intrusions and are associated with irregular skarn mineralization at the contacts with the host carbonate sedimentary rocks. These zones are as much as several tens of meters in width downhole. The syenite may be the feeders for the peralkaline features (parental rocks) and pegmatitic intrusive rocks. Light rare earth element (LREE) bearing minerals such as monazite and xenotime have also been identified by visual inspection.”
ON MINING
- Guanajuato Silver Co. reported an employee fatality on August 12 due to an accident at the San Ignacio mine in Guanajuato.
- Sierra Metals Inc. reported results for the quarter, including figures from its Mexican operations. At Bolivar, in Chihuahua, 4,640 tonnes were milled per day for a total of 406 K tonnes in the period, to produce 10.7 M Lb CuEq at cash cost $1.62 and an AISC of $3.02 per Lb CuEq. The Cusi mine in Chihuahua (a non-core asset) operated at 596 tpd and processed 51.7 K tonnes during the period to produce 241 K Oz AgEq.
- Americas Gold and Silver Corp. reported consolidated financial and operational results for the quarter ended June 30, 2023, including figures from its Mexican operations. At Cosalá, in Sinaloa, 335 K Oz Ag, 3.2 M Lb Pb, 9.6 M Lb Zn were produced at cash cost $4.51 and an AISC of $11.10 per Oz AgEq.
- Discovery Silver Corp. announced its financial results for the second quarter 2023 and provided an update on the quarter and subsequent events. The 2022 Environmental, Social and Governance (ESG) report was released. A marketed public offering raised C$51.75 M, “Completion of the reserve expansion and definition component of our Feasibility Study program consisting of an additional 35,000 m of drilling in over 100 drill holes completed since the cut-off for the Pre-Feasibility Study”. As of June 30, 2023, Discovery had cash and cash equivalents of $68 M.
ON FINANCING
- Barksdale Resources Inc. announced the granting of incentive stock options to its directors, employees and consultants for up 1.3 M shares at a price of $0.59 per share. (San Javier, Sonora).
- Oroco Resource Corp. closed a non-brokered private placement, raising $1.75 M (Santo Tomás, Sinaloa).
ON RESOURCES AND DEVELOPMENT
- Golden Tag Resources Ltd. completed an updated mineral resource estimate for La Parrilla Silver Mine Complex in Durango. The resource includes 22 veins within the Rosarios, San Marcos and Quebradillas underground mines, currently on care and maintenance. Indicated resources are estimated at 615 K tonnes @ 176 gpt Ag, 0.08 gpt Au, 1.55% Pb, 1.39% Zn (or 263 gpt AgEq), containing 3.48 M Oz Ag, 1,700 Oz Au, 9.6 K tonnes Pb, 8.5 tonnes Zn, or 5.19 M Oz AgEq. Inferred resources stand at 1.26 M tonnes @ 191 gpt Ag, 0.12 gpt Au, 0.99% Pb, 1.01% Zn (or 256 gpt AgEq), containing 7.73 M Oz Ag, 5,000 Oz Au, 12.4 K tonnes Pb, 12.7 K tonnes Zn, or 10.33 M Oz AgEq.
- GRSilver Mining Ltd. announced results from one step-out drill hole outside the mineral resource boundary in the San Marcial area of its Plomosas project in Sinaloa. Highlighted core length intervals comprise 20.2 m @ 187 gpt Ag, 0.05 gpt Au, 0.3% Pb, 0.7% Zn (including 5.7 m @ 513 gpt Ag, 0.05 gpt Au, 0.4% Pb, 0.8% Zn, which includes 0.8 m @ 2,041 gpt Ag, 0.14 gpt Au, 0.8% Pb, 1.9% Zn). The hole “intersected a multistage quartz-calcite-sulfide zone composed of irregular veins and breccias crosscutting other hydrothermal breccias …”.
- Sierra Madre Gold and Silver Ltd. announced results from six additional diamond drill holes of the current program at its Tepic project in Nayarit. The holes targeted the Taunas and Veta Tomas structures, with highlighted intercepts comprising 2.50 m @ 296 gpt Ag, 1.15 gpt Au; 0.60 m @ 111 gpt Ag, 2.06 gpt Au; 4.85 m @ 84 gpt Ag, 0.24 gpt Au; 10.05 m @ 158 gpt Ag, 0.46 gpt Au; 4.35 @ 258 gpt Ag, 0.68 gpt Au; 1.0 m @ 92 gpt Ag, 0.36 gpt Au. “The Tepic Project is a +2,600-hectare project where the previous operator completed 149 core holes totaling more than 31,000 meters. “
- Silver Tiger Metals Inc. released results from drilling at El Tigre project in Sonora. Highlighted core length results from the Sooy vein and Sulfide Zone comprise 1.0 m @ 0.01 gpt Au, 178 gpt Ag, 0.22% Cu, 1.0% Pb, 1.7% Zn; 10.7 m @ 0.06 gpt Au, 74 gpt Ag, 0.08% Cu, 0.5% Pb, 0.5% Zn (including 2.3 m @ 0.06 gpt Au, 191 gpt Ag, 0.22% Cu, 1.4% Pb, 1.6% Zn); 4.7 m @ 0.15 gpt Au, 344 gpt Ag, 0.44% Cu, 0.6% Pb, 1.0% Zn; 0.5 m @ 0.26 gpt Au, 1,294 gpt Ag, 0.62% Cu, 3.8% Pb, 6.3% Zn; 3.4 m @ 1.57 gpt Au, 592 gpt Ag, 0.08% Cu, 0.4% Pb, 0.7% Zn; 10.5 m @ 1.98 gpt Au, 151 gpt Ag, 0.14% Cu, 1.4% Pb, 2.9% Zn (including 5.3 m @ 3.87 gpt Au, 249 gpt Ag, 0.22% Cu, 2.2% Pb, 4.4% Zn); 4.0 m @ 0.11 gpt Au, 786 gpt Ag, 0.68% Cu, 0.6% Pb, 1.3% Zn; 0.8 m @ 0.16 gpt Au, 1,549 gpt Ag, 1.73% Cu, 0.2% Pb, 0.7% Zn.
- Vizsla Silver Corp. announced positive preliminary metallurgical test results for the Copala resource area at its Panuco project in Sinaloa. Drill core was first crushed and the subject to simple bulk flotation. Flotation + regrind + Cyanide Leach on flotation concentrate, coupled with Cyanide Leach of Rougher Tails recovered 90.6% Au, 93.7% Ag. “Further test work of material from the Napoleon, Tajitos and Copala deposits is planned to better understand and optimise grind size, cyanide consumption, leach kinetics, residence times and recoveries.”
ON DEALS AND CORPORATE ISSUES
- First Majestic Silver Corp. and Golden Tag Resources Ltd. closed the transaction on the La Parrilla past producing mine in Durango. First Majestic received 143.7 M shares of Golden Tag (US$20 M), and is to receive up to US$13.5 M in the form of three milestone payments either in cash or shares. The first repayment of US$2.7 M is due 18 months on the closing, the second US$7.75 M payment upon receipt of a resource estimate of 5 M Oz AgEq in reserves or 22 M Oz AgEq in measured and indicated resources and the third US$5.05 M payment upon receiving a resource estimate of 12.5 M Oz Ag Eq measured and indicated resources in a new zone on La Parrilla. In addition, First Majestic purchased 18 M shares of Golden Tag and 9 M warrants. Following the closing First Majestic owns 40.8% of Golden Tag shares, and if the warrants are exercised will own 42.2% on a partially diluted basis.
ON SOCIAL RESPONSIBILITY
- No relevan news.
On the image below: Silicified vein ridge on a project in the Sonoran Desert. Picture by Jorge Cirett.

MONUMENTAL MINERALS PROVIDES UPDATE ON DRILLING AT THE JEMI HEAVY RARE EARTH ELEMENT PROJECT, MEXICO
The Mining and Exploration News in Mexico: Highlights on the First Week of August 2023

By Jorge Cirett
During the 31st week of the year (July 31st to August 6th, 2023), 25 companies working in Mexico posted news releases. Five companies informed on exploration work at its properties and seven more reported second quarter 2023 results. Two companies informed on private placements, while one declared a dividend payment. Five companies informed on technical reports, updated mineral resources, drilling results, mining plans and mine preparations on their projects. One company sold the royalties in some properties and one other is reviewing exploration opportunities in South America. ON MEXICO ISSUES, one company made clear commitment to get projects beyond Mexico, the country new mining policies showing its might. The Union – Grupo Mexico conflict in Sombrerete is to be solved in Mexico, not under the T-MEC, according to the federal government. Income tax returns from the mining industry fell by 35% on the first semester 2023. ON EXPLORATION, in Sonora, Prismo Metals mobilized a drill rig to Los Pavitos; Silver Spruce Resources resumed work at Diamante. In Chihuahua, Kootenay Silver updated on work at Columba. In Sinaloa, Prismo Metals updated on the drilling at Palos Verdes. ON MINING, Fresnillo PLC, Starcore International Mines, Capstone Copper, Equinox Gold, First Majestic Silver, Torex Gold and Orla Mining released production results for Q2 2023. ON FINANCING, Goldgroup Mining issued shares on a convertible loan. First Majestic Silver declared the payment of a dividend per share. Colibri closed the first tranche of a private placement. ON RESOURCES AND DEVELOPMENT, SilverCrest Metals released a new technical report with updated mineral resources and a new mine plan for Las Chispas in Sonora. Impact Silver updated on work to refurbish the Plomosas mine in Chihuahua. GoGold Resources released drilling results from Los Ricos South in Jalisco. Discovery Silver released drilling results from the FS program at Cordero, in Chihuahua. Heliostar Metals reported on the re-scoping study at Ana Paula, in Guerrero. ON DEALS AND CORPORATE ISSUES, Endeavour Silver entered into an agreement to sell its royalty on the Cozamin property. Xali Gold is to review exploration opportunities in South America. ON SOCIAL RESPONSIBILITY, no relevant news. ON MEXICO ISSUES
- Editor comments. One more company working exclusively in Mexico announced plans to look for projects in other countries. No one can say the policies imposed by the current administration are not producing the results sought, even if its full weight is to be felt in the years to come.
- The federal government directed that the labor conflict between Grupo Mexico and a Union (Sindicato Nacional de Trabajadores Mineros, Metalúrgicos, Siderúrgicos y Similares de la República Mexicana) in the Sombrerete mine in Zacatecas, has to be solved in Mexican courts, out of the T-MEC rapid response labor mechanism.
- Income tax returns fell 34.6% year on year on the first semester of 2023, the biggest drop in 20 years. On VAT (IVA) and special tax on products and services (IEPS), the mining sector had refunds for $134 M ($2,275 M pesos) and $6.5 M ($110 M pesos) respectively.
ON EXPLORATION
- Kootenay Silver Inc. informed two of three surface access agreements needed have been now signed, and the third one is in the final negotiation stage at its Columba project in Chihuahua.
- Prismo Metals Inc. announced the mobilization of a drill rig for the planned 2,500 m program to its Los Pavitos project in Sonora. Assays for the last four trenches dug at the project were published. Highlighted intervals comprise 1.0 m @ 3.98 gpt Au, 5 gpt Ag; 2.80 m @ 1.18 gpt Au, 16 gpt Ag.
- Prismo Metals Inc. updated on the drilling program at its Palos Verdes project in Sinaloa. Ten holes for a total of 2,035 m have been completed on the 2,500 m program, with the eleventh hole in progress and three holes remaining. On a second press release the company announced the expansion of the program by a joint committee by Prismo and Vizsla, to 3,600 m “in ten holes to be completed in two phases”.
- Silver Dollar Resources Inc. submitted a drilling permit application for the next phase of drilling at the Nora project in Durango. “The geological setting is a Tertiary-aged volcanic flow-dome complex. Gold-silver mineralization is hosted within two structurally controlled epithermal veins, Candy and Nora…. Only 500 m of the potential 3-km strike of the Candy vein structure has been drill tested, and only to a depth of 250 m below surface”.
- Colibri Resource Corp. and partner Silver Spruce Resources Inc. announced the resumption of field works at the Diamante project in Sonora. Stream sediment sampling, geological mapping and rock chip sampling are some of the planned activities.
- Fresnillo PLC. provided its Q2-2023 production results. The Company produced over 14 M Oz Ag, 152,217 Oz Au, 13,994 tonnes Pb and 25,670 tonnes Zn from its operation in Fresnillo, Saucito and Juanicipio in Zacatecas, Cienega in Durango, Herradura and Nochebuena in Sonora, and San Julian in Chihuahua.

- Starcore International Mines Ltd. presented results for its fiscal year and quarter ending on April 30, 2023. During the quarter the company processed 56.8 K tonnes @ 1.45 gpt Au, 11.2 gpt Ag, recovering 86.1% Au, 48.3% Ag, to produce 2,300 Oz Au, 10 K Oz Ag at its San Martin mine in Queretaro. For the year, the company produced 10,000 Oz Au, 85.4 K Oz Ag. Mine operating cash cost was $1,611 and $1,535 per AuEq Oz respectively for the quarter and full year.
- Capstone Copper Corp. reported financial results for the second quarter of 2023, including figures from its Mexican operations. At Cozamin, in Zacatecas, 6.6 K tonnes Cu were produced at cash cost $1.63 per Lb Cu.
- Equinox Gold Corp. announced its second quarter 2023 financial and operating results, without disclosing figures per project.
- First Majestic Silver Corp. announced unaudited consolidated financial results for the second quarter 2023. During the period the company produced 2.63 M Oz Ag, 40,658 Oz Au, or 5.97 M Oz AgEq.

- Torex Gold Resources Inc. reported Q2 2023 and operational results. During the period, the company mined 11.77 M tonnes from the open pit (13,293 tpd), 174 K tonnes from underground (1,913 tpd) at the Limon Guajes mine in Guerrero, of which 1.21 M tonnes were processed to produce 107,507 Oz Au at cash cost $848 per Oz Au and an all-in sustaining cost of $1,308 per Oz Au. Torex maintains its 2023 guidance to produce 440 K to 470 K Oz Au. The quarter closed with net cash of $273.8 M.
- Orla Mining Ltd. announced the results for the second quarter of 2023. At the Camino Rojo Oxide mine in Zacatecas, 29,058 Oz Au were produced at an AISC of $696 per Oz Au. The pit development is being hindered by SEMARNAT lateness to authorize permits. Cash balance at the end of the period was $114.5 M.
ON FINANCING
- Goldgroup Mining Inc. announced the issuance of 29.05 M shares upon conversion of the company’s outstanding convertible loan with a face value of $2.16 M (Cerro Prieto, Sonora).
- First Majestic Silver Corp. declared a cash dividend of $0.0051 per common share for the second quarter of 2023 (San Dimas, Durango).
- Colibri Resource Corp. closed the first tranche of the previously announced non-brokered private placement of “Units”, for gross proceeds of US$487 K. “Each Unit is comprised of: (i) US$1,000 principal amount of 10% secured convertible debentures (the “Debentures”) issued by the Company with a maturity date (“Maturity Date”) of 2 years from the date of issuance; and (ii) 5,416 common share purchase warrants of the Company” (Diamante, Sonora).
ON RESOURCES AND DEVELOPMENT
- SilverCrest Metals Inc. announced results from an updated independent technical report for the Las Chispas operation in Sonora. The report describes a 1,200 tpd operation of ore averaging 4.02 gpt Au, 396.1 gpt Ag, recovering 98.0% Au, 97.0% Ag, to produce 57 K Oz Au, 5.5 M Oz Ag per year in an operation with a mine life (LOM) of 8 years, to generate a post-tax net present value of $549 M. Cash cost is estimated at $7.84 per Oz AgEq and an AISC of $11.98 per Oz AgEq. “The Mineral Resource Estimate model was updated to reflect: narrower veins located over a larger area, thus requiring increased underground development, increased constraints on geologic, statistical, and geostatistical modelling parameters resulting in reductions in resources mainly in Babicanora Main and Babicanora Norte Main veins and increased resources in the Babi Vista Vein, including the Babi Vista Splay. Additionally, there is an increase in the number of Mineral Resource veins and the veins are more widely dispersed. The Updated Inferred Mineral Resource Estimate is reduced from the 2021 FS due to conversion to M&I Mineral Resources and application of the same stricter constraints as applied to M&I Mineral Resources”.

- Impact Silver Corp. provided an update on the recently acquired Plomosas mine in Chihuahua. The mill refurbishment is in the final stages, with testing and modification of the plant to start in late summer to ramp up production to the 200 tpd design capacity. The company has applied for an expansion of the current tailings pond while planning and permitting of the next one takes place. Refurbishment of ventilation, electrical and lighting systems are ongoing, and mine planning is being completed for 2023-2024. The current workforce is comprised by 70 company workers and 25 contract workers.
- GoGold Resources Inc. announced drilling results from Los Ricos South project in Jalisco. The highlighted core length intercepts comprise 30.2 m @ 1.68 gpt Au, 278 gpt Ag (including 9.70 m @ 4.54 gpt Au, 769 gpt Ag); 34.8 m @ 1.37 gpt Au, 132 gpt Ag (including 7.0 m @ 4.68 gpt Au, 440 gpt Ag); 32.70 m @ 1.19 gpt Au, 124 gpt Ag; 11.7 m @ 0.93 gpt Au, 387 gpt Ag (including 1.40 m @ 5.36 gpt Au, 2,780 gpt Ag); 23.10 m @ 0.80 gpt Au, 143 gpt Ag; 28.10 m @ 0.71 gpt Au, 129 gpt Ag. “The Main area drilling campaign’s purposes is to better define the very high-grade portions of the current deposit that may be amenable to bulk underground mining…… It is expected that these holes will be included in an updated Resource to be released by the end of the summer”.
- Discovery Silver Corp. released results from feasibility study (FS) drilling at its Cordero project in Chihuahua. Highlighted core length intervals of the reserve and expansion drilling comprise 62.10 m @ 0.25 gpt Au, 48 gpt Ag, 0.6% Pb, 0.6% Zn; 45.0 m @ 0.24 gpt Au, 66 gpt Ag, 0.5% Pb, 0.7% Zn; 51.7 m @ 0.19 gpt Au, 51 gpt Ag, 0.6% Pb, 0.9% Zn; 15.10 m @ 0.08 gpt Au, 278 gpt Ag, 3.1% Pb, 2.9% Zn; 12.4 m @ 0.19 gpt Au, 168 gpt Ag, 1.4% Pb, 3.1% Zn; 37.4 m @ 0.09 gpt Au, 79 gpt Ag, 1.1% Pb, 1.5% Zn; 38.5 m @ 0.17 gpt Au, 104 gpt Ag, 0.5% Pb, 0.3% Zn; 82.1 m @ 0.03 gpt Au, 33 gpt Ag, 0.6% Pb, 0.9% Zn. Discovery has now drilled 52,000 m in 164 holes as part of the FS drill program. Incoming “property-wide drilling will initially target large chargeability anomalies in the Sanson area (approximately 3.5 km to the northeast of Cordero) and skarn targets at depth in the northeast of the deposit. Currently, 9,000m of drilling is planned in 2023”.
- Heliostar Metals Ltd. reported progress on re-scoping of the current pre-feasibility study (PFS) at the Ana Paula project in Guerrero. “The Company is evaluating three underground mining scenarios, with different cut-off grades and mining rates, that are being advanced for more detailed evaluation and comparison…… The Company will refine the options upon receipt of an updated resource model and metallurgical program results, both of which rely on drilling completed in 2023. Metallurgical results will be reported in October and an updated resource model is expected in November 2023”.
ON DEALS AND CORPORATE ISSUES
- Endeavour Silver Corp. entered into an agreement with Gold Royalty Corp. to sell all of its interest in a 1% Cozamin Royalty for a total consideration of US$7.5 M, payable in cash. “The Royalty applies to two concessions (Calicanto and Vicochea) on Capstone’s Cozamin copper-silver mine, located 3.6 kilometres north-northwest of Zacatecas City in state of Zacatecas, Mexico”.
- Xali Gold Corp. has decided to review exploration opportunities in South America, including Peru. The company updated on its Mexican projects: Exploration at El Oro in Estado de Mexico has been put on hold, whilst Sun River Gold (who has an option in the El Oro mine tailings) has been advancing permitting and providing some cash flow through advances on the Net Profit Interest due once in production. “Negotiations are also underway with Mexican groups regarding both upgrades and financing commitments to make the San Dieguito de Arriba (“SDA”) Plant in Western Mexico fully operational. Xali Gold terminated the previously announced agreement (see January 18, 2023 News Release) with Minera Cinco Reales S.A. de C.V. (“MCR”) earlier this month due to MCR’s lack of progress”.
ON SOCIAL RESPONSIBILITY
- Aura Minerals Inc. released its 2022 sustainability report, with a 62% reduction in frequency rates of accidents, 92% of water recycling and establishing a decarbonization plan with the goal of reducing GHG emissions by 5% from 2020 levels by 2023.
On the image below: Silicified vein ridges on a project in the Sonoran Desert. Picture by Jorge Cirett.

First Majestic Reports Second Quarter Financial Results and Quarterly Dividend Payment
The Mining and Exploration News in Mexico: Highlights on the Third Week of July 2023

By Jorge Cirett During the 29th week of the year (July 17th to July 23rd, 2023), 21 companies working in Mexico posted news releases. Two companies informed on exploration work at its properties and five more reported second quarter 2023 results. One company informed on the closing of a private placement, while six companies reported on work at their advanced properties and six more informed on acquisitions, company’s plans and issues. ON MEXICO ISSUES, mining companies are reflecting the changes in the business environment by making strategic moves, including diversification of the countries they operate in. The coal mine in Coahuila that registered two fatalities during the week had suspension orders since 2022. Mining organization and experts question LitioMx ability to operate, and its almost non-existent budget. ON EXPLORATION, in Sonora, Regency Silver informed on drilling at Dios Padre; Prismo Metals reported on the trenching program at Los Pavitos. In Sinaloa, Prismo Metals informed on drilling at Palos Verdes. ON MINING, Americas Gold and Silver, Bear Creek Mining, First Majestic Silver, Golden Minerals and Avino Silver released production results for Q2 2023. ON FINANCING, Guanajuato Silver announced a bought deal private placement with a sole underwriter. ON RESOURCES AND DEVELOPMENT, Aura Minerals provided an exploration update for Aranzazu, in Zacatecas. First Majestic Silver reported exploration results from San Dimas, in Durango, and from Santa Elena, in Sonora. Heliostar Metals released drilling results from Ana Paula, in Guerrero, including the strongest gold intercept for Mexico in the year. GoGold Resources released drilling results from the Main Area of the Los Ricos South project in Jalisco. Gatos Silver updated on resource definition drilling at its Cerro Los Gatos property in Chihuahua. Endeavour Silver provided a construction update for its Terronera project in Jalisco. ON DEALS AND CORPORATE ISSUES, Riverside Resources provided an outlook of its ongoing activities, including a strengthening of its diversification out from Mexico. Radius Gold informed on the extension of the exclusivity agreement with Fresnillo PLC on the Plata Verde project, in Chihuahua. Newmont included several references to the suspension of activities at Peñasquito, in Zacatecas, on its Q2 2023 report. Golden Tag Resources updated on the La Parrilla (Durango) acquisition from First Majestic. Excellon Resources announced the sudden termination of the acquisition process of La Negra project in Queretaro by the vendor. Sierra Metals informed the conclusion of the “Special Committee” formed last year to tackle the challenging circumstances the company is addressing. ON SOCIAL RESPONSIBILITY, no relevant news. ON MEXICO ISSUES
- Editor comments. The hostile stance at the mining industry since the instauration of the present federal administration in Mexico, which culminated with the passing of a mining law that is to practically stop any new exploration plays and make current operations riskier, is rendering results, with companies consolidating plans in their search for greener pastures. Riverside Resources is one of the few companies explicitly making public their diversification plans out from Mexico, but they are certainly not alone. Great Panther Silver is a company that bailed out before the president made the legal move to reflect its personal stance in the industry. Other companies are understandably doing the same, although the widespread anti-mining position in many countries generates second thoughts on the issue.
- The Secretaría de Trabajo y Previsión Social (STPS-Work Bureau) pointed that the las visit to the Minera Fuga, in Coahuila, was in August 2022. During the review dangerous conditions were detected. Two workers died last week on the mine after falling 10 meters when the hoist winch failed. STPS ruled access restrictions and limitation of operations, which are still in force, “any operation of the mine is out of the law”.
- Mining organizations and experts raise doubts on LitioMx ability to operate. Only US$2 M have been budgeted for exploration and evaluation of lithium deposits in 2023 and 2024. Just Bacanora Lithium has invested more than US$450 M in the definition of resources in its lithium-clay deposit in Sonora, as an example of the unreasonable amounts directed to the search for lithium. This is a large deposit with a questionable economic viability, as lithium is associated to clays, and an economic process to extract the lithium still has to be proved. In the World, 85% of lithium is mined from brines in dry lakes, and the rest from hard-rock pegmatites.
ON EXPLORATION
- Regency Silver Corp. announced the completion of the phase 1 of the 2023 drilling program at its Dios Padre project in Sonora. Nine holes were drilled as follow up to the one that intercepted 35.8 m @ 6.84 gpt Au, 0.88% Cu, 22 gpt Ag and 9.8 m @ 13.97 gpt Au, 1.1% Cu, 50 gpt Ag on the 2022 program. Eight of nine holes intersected the target breccia zone down-dip and along strike, with the breccia appearing to widen with depth. A megacrystic quartz-feldspar porphyry appears to be the primary control for copper mineralization, with the high-grade sulfide breccia on the footwall of the porphyry. “The shallower intersections are more pyrite dominant with deeper intersections containing more specularite. Chalcopyrite appears to be highest in abundance where the breccia is proximal to the lower contact of the quartz-feldspar porphyry”. Final results will be released after reception and evaluation.
- Prismo Metals Inc. reported that the trenching program at Los Pavitos property in Sonora has been completed. Results for 303 of the 347 samples collected from trenches have been received. “The trenching was generally focused on areas with little outcrop along strike from areas with quartz veining and high-grade surface assays”. Highlighted results comprise 6.4 m @ 0.1 gpt Au; 19.0 m @ 2.2 gpt Au, 23 gpt Ag (including 4.0 m @ 10.3 gpt Au, 104 gpt Ag) at Auras, 18.5 m @ 0.2 gpt Au; 2.1 m @ 1.7 gpt Au; 8.0 m @ 0.5 gpt Au; 7.8 m @ 2.3 gpt Au, 13 gpt Ag; 2.5 m @ 0.9 gpt Au, 70 gpt Ag; 17.70 m @ 0.13 gpt Au at Santa Cruz and 1.40 m @ 0.74 gpt Au at Española.
- Prismo Metals Inc. is in the process of completing a 2,500 m drill program on its Palos Verdes project, in Sinaloa. The program was designed to test areas without previous drill access. Eight holes have been completed for a total of 1,500 m and assays have been received for the first seven holes. Results are expected to be announced next week.
ON MINING
- Americas Gold and Silver Corp. provided Q2-2023 production results. The Cosalá operations in Sinaloa produced 335 K Oz Ag, 3.9 M Lb Pb, 9.9 M Lb Zn, benefitting from higher grade Ag areas in the upper zone of the San Rafael mine.
- Bear Creek Mining Corp. announced production results for the second quarter of 2023. At the Mercedes mine in Sonora, 9,199 Oz Au, 39.8 K Oz Ag were produced by mining 121.5 K tonnes, processing 125.1 K tonnes grading 2.41 gpt Au, with a recovery of 94.54% Au during the period. Cut and fill mining was revised to room and pillar mining at San Martin and sub-level caving and sub-level stoping at Marianas. “Tonnes mined from the San Martin deposit are expected to double from 400 to 800 tonnes per day during Q3 2023 as the available working faces increase. The San Martin deposit contains 289k tonnes in Measured and Indicated Resources at an average grade of 6.6 g/t gold and is projected to account for roughly 50% of Mercedes’ gold production in the second half of the year”.
- First Majestic Silver Corp. released Q2 2023 production results. In Mexico, the company produced 2.63 M Oz Ag, 40,858 Oz Au (5.97 M Oz AgEq) from its operations at San Dimas in Durango, Santa Elena in Sonora and La Encantada in Coahuila. During the period 16 drill rigs were active in Mexico, eight at San Dimas (16,588 m of drilling), six at Santa Elena (16,373 m of drilling) and two (1,950 m of drilling) at La Encantada. For the year First Majestic aims to produce between 10.5 and 11.2 M Oz Ag and between 169 to 180 K Oz Au at cash cost between $12.33 and $12.71 and an AISC between $17.23 and $17.66.

- Golden Minerals Co. reported production figures for Q2 2023. At Rodeo, in Durango, 154.4 K tonnes were mined, 54.3 K tonnes processed at a rate of 603 tonnes per day, averaging 1.6 gpt Au, 9 gpt Ag, recovering 72.6% Au, 75.5% Ag, to produce 2,081 Oz Au, 11.5 K Oz Ag. The company also sold 656 tonnes of Au-rich pyrite concentrate, 118 tonnes of Ag-rich lead concentrate and 63 tonnes of Zn concentrate, produced from mineralized material from the Velardeña properties (also in Durango), material that was mined and stockpiled during 2022 as part of the test-mining program.
- Avino Silver & Gold Mines Ltd. announced production results for Q2 2023. At the Avino mine in Durango, 157.4 K tonnes were milled averaging 53 gpt Ag, 0.44 gpt Au, 0.49% Cu, recovering 87% Ag, 68% Au, 84% Cu, to produce 232.4 K Oz Ag, 1,520 Oz Au, 1.44 M Lb Cu, or 587.3 K Oz AgEq. Recent news includes the best drill intercept in the long history of the mine, and drilling results that probe the continuity of mineralization 1.1 km downdip from the surface outcrop. Metallurgical testing at the Oxide Tailings project has been completed, taking the resource to 5.7 M tonnes containing 17.4 M Oz AgEq. The Dry-Stack tailing facility is complete and operational.
ON FINANCING
- Guanajuato Silver Co. announced a bought deal private placement with Cantor Fitzgerald Canada as the sole underwriter, for gross proceeds of C$8 M. “The Corporation shall pay to the Underwriter a cash commission equal to 6.0% of the gross proceeds of the Offering and 6.0% broker warrants based on the number of Units sold in the Offering” (El Cubo and Valenciana, Guanajuato).
ON RESOURCES AND DEVELOPMENT
- Aura Minerals Inc. provided an exploration update from its properties, including from its operations at Aranzazu, in Zacatecas. Aura Silver controls 11,000 ha in the project area, and only 5% of the mineral claims have been drilled. Exploration efforts have focused on extending the life of mine (LOM) and building the basis for an increase in production capacity. Currently Aura has a LOM of seven years based on mineral reserves only. Several early stages targets have been identified, including “new copper-gold skarns, manto type polymetallic mineralization, and high-grade gold/silver veins”. For 2023, 29,400 m of drilling are intended to be completed, focusing on testing the continuity of the GH and Cabrestante areas, with drilling also planned for the El Cobre and Aranzazu extensions.
- First Majestic Silver Corp. reported exploration results from San Dimas in Durango and Santa Elena (Ermitaño Zone) in Sonora. At San Dimas, true width drilling intercepts from the Sinaloa North-Elia vein, the Santa Teresa vein and the Perez vein include 3.88 m @ 8.38 gpt Au, 763 gpt Ag; 0.98 m @ 5.84 gpt Au, 396 gpt Ag; 4.12 m @ 14.98 gpt Au, 89 gpt Ag; 5.69 m @ 5.41 gpt Au, 883 gpt Ag; 3.05 m @ 4.58 gpt Au, 740 gpt Ag; At Santa Elena, resource conversion holes, in addition to intercepts in the Ermitaño vein, multiple holes intersected mineralization in secondary veins located in the hanging and footwall of the Ermitaño vein, returning true width intercepts of 15.55 m @ 5.98 gpt Au, 222 gpt Ag; 13.3 m @ 4.27 gpt Au, 127 gpt Ag; 6.42 m @ 13.73 gpt Au, 150 gpt Ag; 1.96 m @ 3.39 gpt Au, 56 gpt Ag.
- Heliostar Metals Ltd. reported drill results from two additional holes at the Ana Paula project in Guerrero. “The current drill program continues to demonstrate higher overall grades over broad widths relative to the current mineral resource” in Heliostar’s quest to evaluate the possible development of an underground mine. Highlighted core length intervals comprise 241.95 m @ 9.06 gpt Au (including 31.5 m @ 21.5 gpt Au; 35.2 m @ 23.6 gpt Au and 9.9 m @ 42.4 gpt Au); 104.1 m @ 6.14 gpt Au (including 19.5 m @ 15.1 gpt Au). These holes were drilled within the resource model with increases in grade to the expected intercept of 33% and 38%.
- GoGold Resources Inc. released drilling results from the Main Area of the Los Ricos South project in Jalisco. Highlighted core length intervals comprise 14.0 m @ 1.77 gpt Au, 574 gpt Ag (including 2.3 m @ 10.30 gpt Au, 3,308 gpt Ag); 6.3 m @ 0.59 gpt Au, 86 gpt Ag; 16.2 m @ 0.70 gpt Au, 72 gpt Ag; 14.0 m @ 2.90 gpt Au, 85 gpt Ag; 17.5 m @ 0.60 gpt Au, 93 gpt Ag; 9.9 m @ 0.95 gpt Au, 334 gpt Ag; 11.9 m @ 1.28 gpt Au, 183 gpt Ag; 9.5 m @ 1.08 gpt Au, 186 gpt Ag; 5.4 m @ 1.97 gpt Au, 136 gpt Ag; 11.6 m @ 1.50 gpt Au, 165 gpt Ag; 22.5 m @ 1.20 gpt Au, 124 gpt Ag; 5.8 m @ 2.27 gpt Au, 42 gpt Ag; 24.9 m @ 1.01 gpt Au, 104 gpt Ag; 7.1 m @ 1.25 gpt Au, 417 gpt Ag; 16.5 m @ 1.32 gpt Au, 153 gpt Ag; 17.3 m @ 2.53 gpt Au, 160 gpt Ag; 13.7 m @ 1.48 gpt Au, 213 gpt Ag. It is expected these holes will be included in an updated resource to be released by the end of the summer.
- Gatos Silver Inc. provided an update on the definition and exploration drilling at its Cerro Los Gatos property in Chihuahua. Highlighted true width intercepts from resource definition drilling comprise 25.7 m @ 78 gpt Ag, 0.05 gpt Au, 0.53% Cu, 2.1% Pb, 5.0% Zn; 9.5 m @ 87 gpt Ag, 0.18 gpt Au, 0.44% Cu, 1.9% Pb, 6.3% Zn; 2.7 m @ 192 gpt Ag, 0.17 gpt Au, 0.20% Cu, 8.0% Pb, 9.0% Zn; 3.8 m @ 181 gpt Ag, 0.11 gpt Au, 0.28% Cu; 1.7% Pb, 2.0% Zn; 4.1 m @ 39 gpt Ag, 0.10 gpt Au, 0.45% Cu, 1.1% Pb, 4.5% Zn; 2.7 m @ 91 gpt Ag, 0.06 gpt Au, 0.61% Cu, 4.7% Pb, 11.4% Zn; 12.2 m @ 129 gpt Ag, 0.04 gpt Au, 0.54% Cu, 1.1% Pb, 2.3% Zn; 10.0 m @ 146 gpt Ag, 0.11 gpt Au, 0.45% Cu, 2.2% Pb, 3.2% Zn. The company’s exploration land package covers 103,000 ha, with over 50 targets identified to date. Mamba, Portigueño, Lince, Santa Ana and San Luis are some of the areas where current work is defining drilling targets through mapping, re-logging and re-interpretation, Lidar surveys and geophysics.
- Endeavour Silver Corp. provided a construction update for its Terronera project in Jalisco. More than $70 M have been spent since Q1 2022 (of a $144 M budget), with construction progress currently at 30%. Detail mill and surface facilities engineering is over 70% complete, the access road improvements are almost finished and the permanent camp facilities are at 90% completion. Nearly 600 m of underground development have been completed and the mill site earthworks have finalized. The workforce has increased to 83 employees and 390 contract workers. Upcoming work includes advancing the mill area concrete work, awarding the mill construction contract, receiving major mill components in Q3 and advancing Portal 2 and Portal 4 development for initial ore access in Q1 2024.
ON DEALS AND CORPORATE ISSUES
- Riverside Resources Inc. provided an outlook of its ongoing activities on the first half of the year, and its plans for the reminder of 2023. The company is diversifying its activities out from Mexico, strengthening objectives in Canada. Riverside consolidated the Union project in Sonora, with assays of up to 1 Oz per ton Au in the now controlled mine area. Another development is the royalty in the Tajitos asset (Sonora), with funds having been received from Fresnillo PLC, who is advancing the property.
- Radius Gold Inc. informed the extension of the exclusivity agreement with Fresnillo PLC for the Plata Verde project in Chihuahua. “The amended Agreement provides Minera San Julian a 6-month extension to its Exclusivity Period from July 7, 2023 to January 7, 2024 to negotiate a Definitive Agreement that would include an option agreement to earn a 70% interest in the Plata Verde project. The amended Agreement also provides for interim funding by Minera San Julian of US$206,000 … as well as an additional advance of US$500,000 to fund initial drill testing”.
- Newmont Corp. announced second quarter 2023 results, including some information from its Peñasquito mine in Zacatecas. In June, Newmont suspended operations at Peñasquito to focus on finding an appropriate and sustainable resolution to the dispute with the leadership of the National Union of Mine and Metal Workers of the Mexican Republic. “Peñasquito incurred $23 million of operating costs and $15 million of depreciation and amortization due to the suspension of operations”.
- Golden Tag Resources Ltd. updated on the proposed acquisition of the La Parrila silver mine complex (in Durango) from First Majestic Silver Corp pursuant to the agreement announced in December 2022. The transaction is expected to close in August, its completion remains subject to the approval by Golden Tag shareholders and receipt of all regulatory approvals, including that of the TSXV. The company has already received approval from Mexico’s antitrust agency, the Comisión Federal de Competencia Económica (COFECE) for the acquisition of La Parrilla. “Golden Tag has closed on two tranches of its non-brokered private placement financing of subscription receipts for aggregate gross proceeds of $6.9 million. The Company has received further subscription commitments, which when combined with the first two tranches, total in excess of $7.2 million”.
- Excellon Resources Inc. announced the unexpectedly reception of a notice of termination of the previously announced acquisition of the La Negra project from the seller, Dalu S.ar.l., an entity owned by an investment fund managed by Orion Resource Partners. Consequently, the company is also announcing the termination of its previously announced subscription receipts offering, which was intended to finance the acquisition. Excellon is in advanced discussions with holders of more than 66-2/3% of the principal of its outstanding convertible debentures maturing on July 30, 2023 in the principal amount of C$17.9 M with a view to extending the maturity date and more broadly restructure the Debentures. “the Company continues to actively assess various interim financing options as well as other corporate development and strategic opportunities to complement the Company’s go-forward strategy, which may include divestitures, mergers or spin-offs of the Company’s assets to provide additional near term liquidity”.
- Sierra Metals Inc. informed that in October 2022 a Special Committee integrated by the company’s independent directors “initiated a process to explore, review and consider options to optimize the operations of the Company as well as financing, restructuring and strategic options in the best interests of the Company”. The process has made progress towards stabilizing and optimizing operations, pumping and ventilation infrastructure implementation at the Bolivar mine in Chihuahua, increased throughput, appointment of officers and refinancing of secured debt repayment obligations that were due in 2023. As such, the “Special Committee” has been concluded. Some recommendations to follow include near term equity financing to provide working capital and flexibility, funding for longer term capital expansions and minimizing investment in non-core assets.
ON SOCIAL RESPONSIBILITY
- No Relevant News.
On the image below: Vein ridge on a project in the Sonoran Desert. Picture by Jorge Cirett.

MONUMENTAL MINERALS CORP. REPORTS 2023 AGM RESULTS
The Mining and Exploration News in Mexico: Highlights on the Fifth Week of June, 2023
Quartz-Sericte-Pyrite (Phyllic alteration)
By Miguel A Heredia
During the 26th week of the year (June 26th to July 2nd, 2023), at least 33 press releases were announced by companies working in Mexico, and 2 news published by the media with eleven disclosing deals and corporate issues, eleven announcing financing issues, five reporting resources and developments of their properties, four informing on exploration results, two commenting on Mexican issues, and one communicating production and financial results. ON MEXICO ISSUES, Silver Bull commenced international arbitration proceedings against the United Mexican States for the Mexico’s unlawful expropriation and other unlawful treatment of Silver Bull and its investments. Violent mining takeover in Coahuila; point to followers of Senator Napoleón Gómez Urrutia. ON EXPLORATION, In Sonora, Prismo released trenching sampling results from its Los Pavitos project, and Colibri outlined mineralized structures on the Banco de Oro and Bonancita target areas at its the Plomo project. In Chihuahua, Reyna Silver commenced a drilling program at its Batopilas project. In Sinaloa, Prismo commented that it is currently drilling at its Palos Verdes project. In Durango, Orex secured surface access and core storage facilities for exploration on its Sandra Silver-Gold project. ON MINING, Gatos Silver reported Q1, 2023 financial results for its Cerro Los Gatos mine in Chihuahua where it owns a 70% interest. ON FINANCING, Golden Minerals entered into a definitive agreement for the purchase and sale of an aggregate of 1,427,587 shares of commons stock at a price of USD $1.45 per unit (USD $2.1M) in a registered direct offering, which was closed later on obtaining the previously announced gross proceeds of USD $2.1M from the direct offering (Rodeo mine, Durango). Avino renewed a new short form base shelf prospectus and a prospectus supplement in Canada, to distribute common shares from time to time pursuant to a sales agreement with Cantor Fitzgerald & Co., H.C. Wainwright & Co., LLC, Roth Capital Partners, LLC, and A.G.P./Alliance Global Partners, in the United States up to the aggregate sales amount of USD $25M (Avino mine, Durango). Endeavour entered into a sales agreement with some Agents to raise up to USD $60M (Terronera project, Jalisco). Advance Lithium announced a non-brokered private placement for gross proceeds of up to $1M (Sarape project, Sonora). Aloro stated that due to market conditions it will not be proceeding with the previously announced private placement dated on March 03, 2023 (Quitovac project, Sonora). Heliostar announced a brokered private placement for gross proceeds of $5M; the same that later on was increased to up to $7M (Ana Paula project, Guerrero). Luca Mining closed the third and final tranche of its previously announced private placement for gross proceeds of CAD $24,896,551 (Tahuehueto project, Durango). Benjamin Hill announced that its previously announced non-brokered private placement has been extended to allow the Company and its investors time to complete and deliver subscription agreements (Sonora Gold project, Sonora). Colibri declared that it intends to conduct a non-brokered private placement for gross proceeds of up to USD $1M (Evelyn project, Sonora). ON RESOURCES AND DEVELOPMENT, Southern Silver reported that metallurgical scoping tests confirm the technical feasibility of recovering both free cyanide-leachable gold and refractory gold from pyritic material (Cerro Las Minitas project, Durango). Minaurum extended the Environmental Impact Statement (MIA) for the development of its Alamos Silver project in Sonora. Guanajuato Silver provided an updated PEA for its El Cubo Mine Complex in Guanajuato. Luca Mining hit 500 tonnes per day milestone at its Tahuehueto project in Durango. GoGold filed a National Instrument 43-101 PEA technical report for its Los Ricos North project in Jalisco. ON DEALS AND CORPORATE ISSUES, Bear Creek granted incentive stock option to its recently promoted President and CEO (Mercedes Mine, Sonora). Mag Silver, Almaden, Sierra Metals, Goldgroup, Aztec Minerals, and Guanajuato Silver reported results from their annual general and special meeting of shareholders. Goldgroup issued a press release to clarify and retract certain disclosures with respect to the Company’s Cerro Prieto and San Jose de Gracia projects in Sonora and Sinaloa respectively. Canasil announced that the British Columbia Securities Commission revoked the temporary management cease trade order issued against certain insiders of the company (Nora project, Durango). Gatos Silver provided bi-weekly status report in accordance with National Policy 12-203- Management Cease Trade Order (Cerro Los Gatos Mine, Chihuahua). Tarachi has decided to discontinue the option agreement with Exploradora Cobre de Bacanora for the properties located in Sonora (Magistral Mill & Tailings project, Durango).. (ON SOCIAL RESPONSIBILITY, Industrias Peñoles and Fresnillo plc, Mexican mining companies of Grupo BAL, in favor of reforestation.
ON MEXICO ISSUE
- Silver Bull Resources Inc., commenced international arbitration proceedings against the United Mexican States under the Agreement between the United States of America, Mexico, and Canada, and the North American Free Trade Agreement, for the Mexico’s unlawful expropriation and other unlawful treatment of Silver Bull and its investments resulting from the illegal blockade of Silver Bull’s Sierra Mojada project in Coahuila.
- Violent mining takeover in Coahuila; point to followers of Senator Napoleón Gómez Urrutia. With short weapons, machetes and bats, people identified as related to the Morenista senator Napoleón Gómez Urrutia seized the town of Hércules, in Coahuila, a place of little more than 8 thousand inhabitants that was generated around the operations of extraction of iron from Minera Del Norte, a subsidiary of Altos Hornos de México (AHMSA). In a statement, the Mining Union indicated that the conflict occurred after a group majority of workers from Minera Del Norte and AHMSA decided to abandon the organization headed by Gómez Urrutia to join the National Democratic Union of Miners, and he has responded the same as he did in Zacatecas, Guerrero, Sonora and other areas, generating violence and stopping the activities of the mining companies. Minera Del Norte is the main iron extraction company in the region; all the material extracted by the workers is sent to Monclova through a 300 kilometer railway, for use as an input in the AHMSA smelting furnaces.
ON EXPLORATION
- Prismo Metals Inc., released trenching sampling results from its Los Pavitos project in Sonora. Highlights assays include ZA2 (Auras Zone) with 2.2 g/t Au and 23 g/t Ag over 19m long, including 10.3g/t Au and 104 g/t Ag over 4m long; ZSC9 (Santa Cruz Zone) with 0.5 g/t Au over 8m long; and ZSC10 with 2.3 g/t Au and 13 g/t Ag over 7.8m long. The company intends to explore these mineralized zones by drilling, planned to commence shortly.
- Colibri Resource Corporation outlined mineralized structures on the Banco de Oro and Bonancita target areas at its the Plomo project in Sonora. At the Banco de Oro target, the mineralization consists of brecciated quartz veins hosted in foliated sericitized and pyrite bearing rhyolites. Recent geological mapping and sampling has covered an area of approximately 41 hectares, extending approximately 500m north of the historic Banco de Oro mine. Gold values were detected in 46 of the 64 analyzed samples, of which 14 samples returned >0.1 g/t Au, with a high grade of 1.45 g/t Au. At the Bonancita target, mineralization consists of four prospects, all of which contain historical assays from outcrop samples returning > 1 g/t Au. Three of the prospects, Bonancita, Bonancita NWI and Bonancita NWII form a NW trend approximately 2 km in length which is coincident with both a strong topographic lineament and with a strong, NW trending, regional scale magnetic gradient lineament. The recent geological mapping and sampling was conducted on the southernmost prospect, where the objective was to evaluate a NW mineralized trend defined by historical sampling including a high value of 7.62 g/t Au. The exploration program covered over 60 hectares and a total of 75 samples were collected for gold analyses, of which 15 samples returned > 0.1 g/t Au and 3 returned > 1 g/t Au with a peak value of 2.72 g/t Au. Exploration work will continue on the Plomo property to support advanced exploration and an inaugural drill program.
- Reyna Silver Corp., commenced a 3,000m drilling program at its Batopilas project in Chihuahua, to test targets generated over the past year following recognition of the overlapping gold and silver mineralizing events.
- Prismo Metals Inc., commented that it is currently drilling at its Palos Verdes project in Sinaloa, where six holes have been completed for a total of 928m, mainly along the northeastern extension of the vein system and certain areas in the southwestern portion where previous drilling was performed.
- Orex Minerals Inc., secured surface access and core storage facilities for exploration on its Sandra Silver-Gold project in Durango. Sandra Silver-Gold is a 60:40 JV between Pan American Silver Corp., and Orex.
ON MINING
- Gatos Silver Inc., reported Q1, 2023 financial results for its Cerro Los Gatos mine in Chihuahua where it owns a 70% interest. The company reported a revenue of USD $69.9M; a cost of sales of USD $26M; a cash flow from operations of USD $40M; a net income of USD $12.7M; an EBIDTA of USD $39.6M; a free cash flow of USD $28.7M; and a by-product cash cost of USD $2.66 per payable Oz Ag and a by-product all-in sustaining cost of USD $6.11 per payable Oz Ag.
ON FINANCING
- Golden Minerals Company entered into a definitive agreement for the purchase and sale of an aggregate of 1,427,587 shares of commons stock at a price of USD $1.45 per unit (USD $2.1M) in a registered direct offering. In a concurrent private placement, the Company will issue unregistered warrants to purchase up to 1,427,587 shares of common stock with an exercise price of $1.90 per share which will be exercisable six months from the date of issuance and for a period of five years following initial exercise date. The offering is expected to close on or about June 29, 2023, subject to the satisfaction of customary closing conditions. Later on, the company announced that it closed the registered direct offering obtaining the previously announced gross proceeds of USD $2.1M. Golden will use the net proceeds from the offering for working capital and other general corporate purposes (Rodeo mine, Durango).
- Avino Silver & Gold Mines Ltd., renewed a new short form base shelf prospectus and a prospectus supplement in Canada, to pursuant to which Avino may distribute common shares from time to time pursuant to a sales agreement with Cantor Fitzgerald & Co., H.C. Wainwright & Co., LLC, Roth Capital Partners, LLC, and A.G.P./Alliance Global Partners, as agents or as principals, for the distribution of the Offered Shares in the United States up to the aggregate sales amount of USD $25M (Avino mine, Durango).
- Endeavour Silver Corp., entered into a sales agreement with BMO Capital Markets Corp. (the lead agent), CIBC World Markets Inc., TD Securities (USA) LLC, H.C. Wainwright & Co., LLC, B. Riley Securities, Inc., Raymond James (USA) Ltd. and National Bank of Canada Financial, Inc., pursuant to which the Company may, at its discretion and from time-to-time during the 25 month term of the Sales Agreement, sell, through the Agents, such number of common shares of the Company as would result in aggregate gross proceeds to the Company of up to USD $60M. Gross proceeds will be used to fund the construction and development of the Company’s Terronera Mine, to advance the evaluation and development of the Pitarrilla and Parral properties, to assess potential development stage mineral properties for acquisition, to fund the potential acquisition of other development stage mineral properties, for continued exploration on the Company’s existing mineral properties and to add to the Company’s working capital.
- Advance Lithium Corp., announced a non-brokered private placement of units at a price of $0.04 per unit. Each Unit shall be comprised of one common share in the capital of the Company and one common share purchase warrant with each warrant being exercisable to purchase one common share at a price of $0.05 per share at any time within 60 months of the date of issuance. The Financing will be for a maximum of $1M resulting in 21,250,000 units being issued. Part of the gross proceeds will be used to advance the Lithium and Sarape projects in Mexico and for general corporate purposes.
- Aloro Mining Corp., stated that due to market conditions it will not be proceeding with the previously announced private placement dated on March 03, 2023. As announced by News Release on May 9, 2023, the Company closed a first tranche of the private placement for aggregate proceeds of $130K (Quitovac project, Sonora).
- Heliostar Metals Ltd., announced a brokered private placement of up to 13,513,513 units of the company at a price of $0.37 per unit for gross proceeds of up to $5M, the same that later on was increased up to 14,324,324 units plus additional non-brokered private placement of 4,594,594 units for gross proceeds of up to $7M. Gross proceeds will be used to continue the exploration and development work at its Ana Paula project in Guerrero.
- Luca Mining Corp., closed the third and final tranche of its previously announced private placement for gross proceeds of CAD $24,896,551 (Tahuehueto project, Durango).
- Benjamin Hill Corp., announced that its previously announced non-brokered private placement Has been extended to allow the Company and its investors time to complete and deliver subscription agreements. All other terms of the Offering remain the same allowing for a maximum of 3,333,333 Units at a price of $0.12 per Unit for aggregate gross proceeds of approximately $400K (Sonora Gold project, Sonora).
- Colibri Resources Corporation declared that it intends to conduct a non-brokered private placement of up to 1,000 for gross proceeds of up to USD $1M. Each Unit will consist of one (1) USD $1,000 principal amount 10% unsecured convertible debenture, and 5,416 common share purchase warrants. Each Warrant will entitle the holder to acquire one common share of the Corporation at a price of CAD $0.12 per common share for a period of 24 months following the closing of this offering. Net proceeds will be used for working capital and exploration expenses including drilling on the Evelyn/Plomo and Diamante/El Mezquite/Jackie projects.
ON RESOURCES AND DEVELOPMENT
- Southern Silver Exploration Corp., reported that metallurgical scoping tests confirm the technical feasibility of recovering both free cyanide-leachable gold and refractory gold from pyritic material through a process of fine grinding and hot atmospheric pressure oxidation followed by cyanide leaching. “Both sulphide and oxide composites were tested as part of the metallurgical program. Mass balance reconciliations on the sulphide composite testwork indicate that 50% of the total gold is recoverable by hot atmospheric pressure oxidation prior to cyanide leaching at an overall 83.9% recovery. An additional 21.5% of gold is recovered into a copper concentrate at payable grades for a total of 71.5% recovery of gold”. It will de-risk and increase the value of the Cerro Las Minitas project in Durango.
- Minaurum Gold Inc., extended the Environmental Impact Statement (MIA) for the development of its Alamos Silver project in Sonora, which includes the construction of drill pads, clean-up of preexisting roads, and the rehabilitation and reactivation of historical underground mine workings.
- Guanajuato Silver Company Ltd., provided an updated PEA for its El Cubo Mine Complex in Guanajuato. The upgraded Mineral Resource Estimate (MRE) for El Cubo Mine Complex and financial parameters are shown in the next tables respectively:


- Luca Mining Corp., hit 500 tonnes per day milestone at its Tahuehueto project in Durango on schedule and budget, but the focus is on towards the ultimate goal of commercial production at 1,000 tonnes per day by year-end.
- GoGold Resources Inc., filed a National Instrument 43-101 Preliminary Economic Assessment (PEA) technical report for its Los Ricos North project in Jalisco. The table below shows the Mineral Resource Estimate as of May 17, 2023:
Highlights of the PEA, with a base case silver price of USD $23/Oz and gold price of USD $1,800/Oz include an after-tax NPV at a discount rate of 5% of USD $413M with an after-tax IRR of 29%; a 13-year mine life producing a total of 110.3M payable Oz AgEq consisting of 68M Oz Ag, 221.7K Oz Au, 22.8M Lb Cu, 144.1M Lb Pb, and 242.2M Lb Zn; an initial capital cost of USD $221M, including USD $29M in contingency costs, over an expected 18 months build; an additional expansion capital of USD $137M, and sustain capital cost of USD $6M over the life of mine (LOM); an average LOM operating cash costs of USD $9.50 per Oz AgEq, and all in sustaining costs of USD $9.69 per Oz AgEq; and average annual production of 8.8M Oz AgEq in year one through twelve; and approximately 3/4 of LOM production is from four open pits containing oxide mineralization and approximately 1/4 is from a separate open pit which contains only sulphide mineralization.
ON DEALS AND CORPORATE ISSUES
- Bear Creek Mining Corporation granted incentive stock option to its recently promoted President and CEO. The Stock Options will vest periodically in accordance with the 2022 Plan and may be exercised on or before June 26, 2033 at an exercise price of CAD $0.45 per share, being the closing price of the Company’s shares on the TSX Venture exchange on June 23, 2023. (Mercedes Mine, Sonora).
- Mag Silver Corp., Almaden Minerals Ltd., Sierra Metals Inc., Goldgroup Mining Inc., Aztec Minerals Corp., and Guanajuato Silver Company Ltd., reported results from its annual general and special meeting of shareholders (Juanicipio mine, Zacatecas).
- Goldgroup Mining Inc., issued a press release to clarify and retract certain disclosures with respect to the Company’s Cerro Prieto and San Jose de Gracia projects in Sonora and Sinaloa respectively. “The Company would like to clarify that the mining key performance indicators in the Company’s Management’s Discussion and Analysis for the period ended September 30, 2022, year ended December 31, 2022 and period ended March 31, 2023 under the heading Financial And Operational Highlights have not been reviewed by the Company’s qualified person as stated and should not be relied upon. The Company is in the process of reviewing its internal procedures regarding qualified person requirements to ensure all future required disclosure are appropriately reviewed by a qualified person. In addition, the disclosure in the 2022 Annual Information Form (AIF) has triggered the requirement to file a technical report for the projects under s.4.2 (1)(f) of NI 43-101 and the Company would like to state that information in the 2022 AIF is not supported by a compliant NI 43-101 technical report, contrary to NI 43-101, and that the information should not be relied on until it has been verified and supported by a technical report”.
- Canasil Resources Inc., announced that the British Columbia Securities Commission revoked the temporary management cease trade order issued against certain insiders of the company on May 03, 2023 (Nora project, Durango).
- Gatos Silver Inc., provided a bi-weekly default status report in accordance with National Policy (NP) 12-203- Management Cease Trade Order (MCTO). “Pursuant to NP 12-203, the Company must file bi-weekly status reports in the form of further news releases during the period from the Notice until the MCTO is revoked. The Company reports that since the Notice: (i) there have been no material changes regarding the information contained in the Notice that have not been disclosed in a bi-weekly default status report or in a news release referenced therein; (ii) there have been no failures by the Company in fulfilling its stated intentions with respect to satisfying the provisions of the alternative information guidelines under NP 12-203; and (iii) there has not been any specified default subsequent to the defaults announced in the Notice and the news releases dated May 13, 2022, August 5, 2022, November 11, 2022, March 30, 2023 and May 15, 2023” (Cerro Los Gatos Mine, Chihuahua).
- Tarachi Gold Corp., after a thorough review of the mineral concessions owned by Exploradora Cobre de Bacanora S de R.L. de C.V., has decided to discontinue the option agreement for the properties located in Sonora. Tarachi is evaluating new precious metal opportunities in North America and has reduced its ongoing overhead costs to conserve its significant cash assets during this review process (Magistral Mill & Tailings project, Durango).
ON SOCIAL RESPONSIBILITY
- Industrias Peñoles S.A.B. de C.V., and Fresnillo plc, Mexican mining companies of Grupo BAL, in favor of reforestation. Both in the operation of their mining units and in their neighboring communities have implemented sustainability programs through which they encourage all people to join in caring for the flora. All the group’s operating units are located outside protected natural areas or areas of value for biodiversity and have reforestation programs and nurseries, where endemic species of the regions where they operate are cultivated.
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, phyllic alteration (quartz-sericite-pyrite) in a project in Jalisco, Mexico. Photo by Miguel A Heredia.

