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Fortuna Mining (NYSE: FSM) files Diamba Sud gold project report

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
6-K

Rhea-AI Filing Summary

Fortuna Mining Corp. filed a National Instrument 43-101 technical report for the Diamba Sud Gold Project in the Kédougou Region of Senegal, with an effective date of June 30, 2026, supporting the results of the Feasibility Study previously announced on June 29, 2026.

The Technical Report is available on the company’s website and on SEDAR+ and EDGAR under its profile. Fortuna is a Canadian precious metals mining company with three operating mines and exploration projects in Argentina, Côte d’Ivoire, Guinea, Guyana, Peru, and Senegal, and states that sustainability, environmental stewardship, and social responsibility are central to its operations.

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Filing Explained

The July 13 filing makes the Diamba Sud feasibility-study technical report public; it does not disclose a share transaction or project completion.

Form 6-K is an interim report used by a foreign private issuer to furnish material information published in its home market, and Fortuna’s July 13, 2026 filing reports that it filed a technical report for the Diamba Sud Gold Project in Senegal.

The report has an effective date of June 30, 2026 and supports the feasibility-study results previously announced by Fortuna.

For existing common holders, the immediate structural consequence is public access to the filed study; the filing describes a report submission and availability, not a share transaction.

The filing identifies the feasibility study as having been announced on June 29, 2026, consistent with the earlier company announcement.

Accordingly, this disclosure adds the technical-report record and access through the company, SEDAR+, and EDGAR, but does not itself establish project construction, operation, financing, or a new feasibility-study result.

Sources and calculations
Effective date of Technical Report June 30, 2026 Effective date of the Diamba Sud Gold Project Technical Report
Feasibility Study news release date June 29, 2026 Date of prior news release announcing Feasibility Study results
News release date for filing July 13, 2026 Date of news release announcing filing of the Technical Report
National Instrument 43-101 - Standards of Disclosure for Mineral Projects regulatory
"in accordance with National Instrument 43-101 - Standards of Disclosure..."
Technical Report technical
"it has filed a technical report entitled “Diamba Sud Gold Project..."
A technical report is a detailed, expert-written document that explains the methods, data, results and risks behind a company’s engineering, scientific or operational claim — for example estimates of resources, product testing, or project feasibility. Investors use it like an independent inspection or blueprint: it reveals how solid the underlying work is, what assumptions were made and what could go wrong, helping assess value and risk before committing money.
Feasibility Study technical
"supporting the results of the Feasibility Study previously announced..."
A feasibility study is an assessment that evaluates whether a proposed project or idea is practical and likely to succeed before investing significant time and resources. It considers factors like costs, potential benefits, and challenges, helping stakeholders decide if moving forward makes sense. Think of it as a detailed plan that gauges if a new venture is worth pursuing.
foreign private issuer regulatory
"REPORT OF FOREIGN PRIVATE ISSUER pursuant to Rule 13a-16..."
A foreign private issuer is a company organized outside the United States that meets tests showing it is primarily foreign-controlled and therefore qualifies for a different set of U.S. reporting rules. For investors, that means the company files less frequent or differently formatted disclosures with U.S. regulators and may follow home-country accounting and governance practices, so buying its stock is like dining at a well-reviewed restaurant that follows its home kitchen’s rules instead of the local menu — you get access but should check what standards apply.

FAQ

What did Fortuna Mining Corp. (FSM) announce about the Diamba Sud Gold Project?
Fortuna Mining Corp. filed a National Instrument 43-101 Technical Report for the Diamba Sud Gold Project in Senegal, effective June 30, 2026. The report supports Feasibility Study results previously disclosed in a June 29, 2026 news release and is accessible online.

What is the effective date of Fortuna (FSM)’s Diamba Sud Technical Report?
The Diamba Sud Gold Project Technical Report has an effective date of June 30, 2026. This report was prepared in accordance with National Instrument 43-101 and supports the Feasibility Study results announced by Fortuna in a June 29, 2026 news release.

Where can investors access Fortuna (FSM)’s Diamba Sud Technical Report?
The Diamba Sud Technical Report is available on Fortuna’s website, SEDAR+, and EDGAR under the company’s profile. These platforms provide full access to the NI 43-101-compliant report supporting the project’s Feasibility Study results.

In which countries does Fortuna Mining Corp. (FSM) currently operate and explore?
Fortuna Mining operates three precious metals mines and holds exploration projects in Argentina, Côte d’Ivoire, Guinea, Guyana, Peru, and Senegal. Its portfolio includes the Diamba Sud Gold Project in Senegal, alongside other precious metals assets in the Americas and West Africa.

How does Fortuna Mining Corp. (FSM) describe its sustainability focus?
Fortuna states that sustainability is at the core of its operations and stakeholder relationships. The company emphasizes producing gold and silver while creating long-term shared value through efficient production, environmental stewardship, and social responsibility across its operating mines and exploration projects.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 6-K: How Foreign Companies Report to the SEC →

 

 

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

Form 6-K

 

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

 

For the month of July 2026

 

Commission File Number 001-35297

 

Fortuna Mining Corp.

(Translation of registrant’s name into English)

 

1111 Melville Street, Suite 820, Vancouver, British Columbia, Canada V6E 3V6

(Address of principal executive office)

  

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

 

FORM 20-F   ¨                    FORM 40-F  x

 

 

SIGNATURES

 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. 

 

 

  Fortuna Mining Corp.  
Date:  July 13, 2026 (Registrant)  
       
  By: /s/  "Jorge Ganoza Durant"  
    Jorge Ganoza Durant  
    President and CEO  

 

 

Exhibits:

 

99.1News Release dated July 13, 2026

 

 

 

 

 

Exhibit 99.1

 

 

 

NEWS RELEASE

  

 

Fortuna Files Feasibility Study Technical Report for the Diamba Sud Gold Project, Senegal

  

Vancouver, July 13, 2026: Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) is pleased to announce that, in accordance with National Instrument 43-101 -  Standards of Disclosure for Mineral Projects, it has filed a technical report entitled “Diamba Sud Gold Project, Kédougou Region, Senegal”, with an effective date of June 30, 2026  (the “Technical Report”), supporting the results of the Feasibility Study previously announced in Fortuna’s news release dated June 29, 2026.

 

The Technical Report is available on the Company’s website, and on SEDAR+ and on EDGAR under the Company’s profile.



About Fortuna Mining Corp.

 

Fortuna Mining Corp. is a Canadian precious metals mining company with three operating mines and a portfolio of exploration projects in Argentina, Côte d’Ivoire, Guinea, Guyana, and Peru, as well as the Diamba Sud Gold Project in Senegal. Sustainability is at the core of our operations and stakeholder relationships. We produce gold and silver while creating long-term shared value through efficient production, environmental stewardship, and social responsibility. For more information, please visit our website at www.fortunamining.com

  

 

ON BEHALF OF THE BOARD

 

Jorge A. Ganoza

President, CEO, and Director

Fortuna Mining Corp.

  

Investor Relations:

 

Carlos Baca | info@fmcmail.com | fortunamining.com | X | LinkedIn | YouTube | Instagram | TikTok

 

 

Source: View Original Filing on SEC EDGAR

Filing Exhibits & Attachments

1 document

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