Miravalles Gold Corp. Files NI 43-101 Technical Report for Fairfield Gold Project, Nayarit, Mexico
Miravalles Gold advances its Fairfield Project with a new NI 43-101 report, a C$1 million Phase 1 program, and staged earn-in terms.
Rhea-AI Summary
Miravalles Gold Corp. (SSRSF) has filed an independent NI 43-101 Technical Report for its Fairfield Gold Project in Nayarit, Mexico, effective July 31, 2026. The report, prepared by independent Qualified Person Warren Robb, P.Geo., is available on SEDAR+ under the company’s profile.
The Fairfield Project covers five mineral concessions totalling 1,012.73 hectares near Compostela and Tepic, and hosts four principal gold-silver vein systems: Miravalles/Huichapa, San Francisco, Tres Estrella and Constancia. Historical work includes underground development by ASARCO (1926–1936) and five diamond drill holes totalling 603.8 metres completed in 2005–2006.
Historical drill hole DDH-3 intersected the Huichapa vein, including 3.4 m grading 23.49 g/t gold and 64.13 g/t silver, and 0.55 m grading 12.15 g/t gold and 443 g/t silver/b. Rock grab samples collected in 2026 from historic dumps returned highlight values up to and 99.6 g/t silver from various vein systems. Preliminary metallurgical tests on historical stockpile material showed gold recoveries of 75.31% (bulk flotation) and 73.40% (cyanide bottle-roll), with lower silver recoveries.
The Technical Report outlines additional copper-gold porphyry-style targets linked to altered diorite, breccia and stockwork zones and recommends a Phase 1 exploration program with a budget of approximately C$1.0 million. This program includes airborne LiDAR and magnetic surveys, mapping and prospecting, road and drill-pad preparation, and about 1,400 metres of diamond drilling to test extensions of known veins and new targets. Miravalles holds the right to acquire a 100% interest in Fairfield via total cash payments of US$675,000 and issuance of 5,150,000 common shares over four years, subject to a 2.5% net smelter returns royalty.
Positive
- C$1.0 million Phase 1 program recommended to advance Fairfield with airborne surveys and 1,400 m of drilling.
- Historical DDH-3 intercepts include 3.4 m at 23.49 g/t Au and 64.13 g/t Ag, indicating high-grade gold-silver zones.
- 2026 grab samples from historic dumps returned up to 7.93 g/t Au and 99.6 g/t Ag across several vein systems.
- Preliminary metallurgical tests achieved gold recoveries up to 75.31% by bulk flotation and 73.40% by cyanide bottle-roll.
- Earn-in terms for 100% interest capped at US$675,000 cash plus 5,150,000 shares, providing defined acquisition costs.
- Technical Report also outlines additional copper-gold porphyry-style targets, expanding the project’s exploration potential.
Negative
- Silver metallurgical recoveries are relatively modest at 52.05% (bulk flotation) and 43.24% (cyanide bottle-roll) on historical material.
- The company states it has not yet verified historical exploration results, adding uncertainty to legacy data.
- Highlight 2026 grades are from select grab samples from historic dumps and are not necessarily representative of in-situ mineralization.
- Phase 1 work requires an estimated C$1.0 million budget before any new resource delineation is demonstrated.
- The 100% earn-in is subject to a 2.5% net smelter returns royalty, which would reduce future project margins.
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Vancouver, British Columbia--(Newsfile Corp. - September 3, 2026) - Miravalles Gold Corp. (CSE: MIRA) (OTC Pink: SSRSF) (the "Company" or "Miravalles") announces the filing of an independent technical report for its Fairfield Gold Project (the "Project") in Nayarit, Mexico.
The report, titled Technical Report on the Fairfield Gold Project, has an effective date of July 31, 2026, and was prepared by Warren Robb, P.Geo., an independent Qualified Person as defined by NI 43-101. It is available under the Company's issuer profile on SEDAR+ at www.sedarplus.ca.
The Fairfield Gold Project comprises five mineral concessions totalling 1,012.73 hectares in the municipalities of Compostela and Xalisco, Nayarit, Mexico. The Project is located approximately 20 kilometres northwest of Compostela and 25 kilometres southwest of Tepic.
"Filing the independent technical report is an important step in advancing our understanding of Fairfield and establishing a disciplined path forward," commented Keith Anderson, President/CEO of Miravalles. "The Project combines a substantial land position, a long history of gold-silver mining, multiple known vein systems, encouraging recent sampling and compelling follow-up targets. The recommended program provides a clear framework to systematically test the extensions of known mineralization and generate additional targets."
Project Highlights
- More than a century of gold-silver mining history, including significant underground development completed by ASARCO between 1926 and 1936.
- Four principal gold-silver vein systems: Miravalles/Huichapa, San Francisco, Tres Estrella and Constancia.
- Historical exploration included geological mapping, surface sampling, underground rehabilitation and five diamond drill holes completed in 2005-2006 totalling 603.8 metres.
- Historical drill hole DDH-3 intersected the Huichapa vein below the historic Miravalles workings, including 3.4 metres true thickness grading 23.49 g/t gold and 64.13 g/t silver, and 0.55 metres true thickness grading 12.15 g/t gold and 443 g/t silver.
- 2026 rock grab sampling returned gold and silver values from several vein systems, including 7.93 g/t gold and 66.8 g/t silver from the San Francisco dump, 7.51 g/t gold and 7.7 g/t silver from the Miravalles dump, 4.66 g/t gold and 99.6 g/t silver from the Constancia dump, and 4.52 g/t gold and 13.1 g/t silver from the Tres Estrella dump.
- Preliminary metallurgical testing on historical stockpiled material achieved gold and silver recoveries of
75.31% and52.05% , respectively, by bulk flotation, and gold and silver recoveries of73.40% and43.24% , respectively, by 72-hour cyanide bottle-roll testing. Additional test work on fresh mineralized material is required. - The report also identifies additional copper-gold porphyry-style targets associated with altered diorite, breccia and stockwork mineralization for further evaluation.
The report recommends a Phase 1 exploration program with an estimated budget of C
Miravalles has the right to acquire a
Historical Information and Cautionary Statement
The historical exploration information, including the drill results described above are historical in nature. The Company has not yet undertaken sufficient work to verify the historical exploration results.
The 2026 rock samples described above are select grab samples from historic mine dumps and are not necessarily representative of mineralization on the Project. The results presented above are highlight values from a total of 13 samples taken by Miravalles or the independent Qualified Person.
Qualified Person
The scientific and technical information in this news release has been reviewed and approved by Warren Robb, P.Geo., an independent Qualified Person as defined by NI 43-101. Mr. Robb prepared the Technical Report, visited the Project on May 5, 2026, and reviewed historical drill core from DDH-3 on May 6, 2026.
About Miravalles Gold Corp.
Miravalles Gold Corp. is a Vancouver-based mineral exploration company focused on the acquisition and exploration of prospective gold and precious-metals projects in Mexico. Its principal asset is the Fairfield Gold Project in Nayarit, Mexico.
ON BEHALF OF THE BOARD OF DIRECTORS,
MIRAVALLES GOLD CORP.
Keith Anderson
President/CEO
For further information, please contact:
Keith Anderson
President/CEO
kanderson7774@gmail.com
604-786-7774
miravallesgold.com
Neither the Canadian Securities Exchange nor its Regulation Services Provider accepts responsibility for the adequacy or accuracy of this release.
Cautionary Statement Regarding Forward-Looking Information
This news release contains "forward-looking information" within the meaning of applicable Canadian securities legislation. Forward-looking information includes statements regarding the Company's exploration plans, the recommended Phase 1 work program and budget, proposed drilling, potential extensions of known mineralization, identification of additional mineralized structures and targets, metallurgical follow-up work, the potential of the Fairfield Gold Project, and the Company's ability to acquire and advance the Project.
Forward-looking information is based on management's current expectations, estimates, beliefs and assumptions, including assumptions regarding the availability of financing, access to the Project, receipt of required permits and approvals, availability of personnel and contractors, and exploration results. Forward-looking information is subject to known and unknown risks, uncertainties and other factors that may cause actual results to differ materially from those expressed or implied, including risks related to exploration and development, financing, mineral-price fluctuations, surface access and community relations, permitting, environmental matters, the interpretation of geological and metallurgical data, and other risks associated with mineral exploration.
Although the Company believes that the expectations reflected in the forward-looking information are reasonable, readers should not place undue reliance on it. Forward-looking information speaks only as of the date of this news release, and the Company undertakes no obligation to update it except as required by applicable law.
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