Aura Minerals (NASDAQ: AUGO) files 20-F amendment for Matupá study

Rhea-AI Filing Summary

Aura Minerals Inc. filed Amendment No. 2 to its Form 20-F for the fiscal year ended 2025. The amendment’s sole purpose is to add a Technical Report Summary covering the Feasibility Study for the Matupá Gold Project and an Initial Assessment for the Serrinhas and Pé Quente targets in Mato Grosso, Brazil, which was previously too large to include.

The filing confirms audited consolidated financial statements are part of the annual report and lists extensive exhibits, including multiple S-K 1300 technical reports, key financing agreements, corporate policies, and expert consents. Aura Minerals reports 83,789,223 Common Shares outstanding as of the period end.

Key Figures

Common Shares outstanding: 83,789,223 shares

1 metrics

Common Shares outstanding 83,789,223 shares As of the close of the period covered by the annual report

Key Terms

Technical Report Summary, Feasibility Study, S-K 1300, Inline XBRL, +1 more

5 terms

Technical Report Summary technical

"filing the Technical Report Summary on the Feasibility Study for the Matupá Gold Project"

A technical report summary is a concise overview of detailed research or analysis about a particular subject, highlighting key findings and important information. For investors, it provides a quick understanding of complex data or technical details, helping them make informed decisions without needing to review the entire report. Think of it as a brief map that points out the most essential parts of a larger, detailed document.

Feasibility Study technical

"Technical Report Summary on the Feasibility Study for the Matupá Gold Project"

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.

S-K 1300 regulatory

"S-K 1300 Technical Report Summary and Mineral Resource Estimate entitled S-K 1300 Technical Report Summary"

Regulation S-K Item 1300 is a U.S. securities disclosure rule that requires public companies to report how they manage cybersecurity risks and to promptly disclose material cyber incidents. Think of it as a requirement to tell investors both the company’s “cyber health” plan and any major break-ins, similar to a homeowner explaining their alarm system and alerting neighbors after a burglary. This helps investors assess operational risk and potential financial or reputational impact.

Inline XBRL technical

"Inline XBRL Instance Document"

Inline XBRL is a file format for financial filings that embeds machine-readable data tags directly inside the human-readable report, so the same document can be read by people and parsed by software. For investors it makes extracting, comparing and verifying financial numbers faster and more reliable—like a grocery list where each item also has a barcode—reducing manual errors and speeding up analysis.

clawback policy regulatory

"97.1** | | Clawback policy."

A clawback policy is a company rule that lets the firm take back pay, bonuses or stock awards from current or former executives if results are later found to be incorrect, misconduct occurred, or targets were missed. It matters to investors because it helps protect the value of their holdings by discouraging risky or fraudulent behavior and ensuring executive rewards reflect real, verified performance—think of it as a return policy for executive pay.

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Accepted by SEC EDGAR 04/01/2026 - 09:17 AM Learn about SEC filing dates

FAQ

What is the purpose of Aura Minerals (AUGO) Form 20-F/A Amendment No. 2?

The amendment serves one purpose: to file a Technical Report Summary for the Matupá Gold Project and nearby targets in Brazil. This report was too large to be filed with the original Form 20-F and is now added as Exhibit 96.5.

Which mining projects are covered by the new technical report Aura Minerals filed?

The new Technical Report Summary covers the Feasibility Study for the Matupá Gold Project and an Initial Assessment for the Serrinhas and Pé Quente targets. All are located in the Matupá Municipality, Mato Grosso, Brazil, and are now detailed in Exhibit 96.5.

How many Aura Minerals (AUGO) Common Shares were outstanding for the 2025 period?

Aura Minerals reports 83,789,223 Common Shares outstanding as of the close of the period covered by the annual report. This figure reflects the company’s total common equity base at that reporting date, providing context for its listed Nasdaq Global Select Market shares.

What key exhibit types are included in Aura Minerals’ amended Form 20-F?

The amendment lists corporate governance documents, financing agreements, off-take contracts, swap and loan agreements, S-K 1300 Technical Report Summaries, subsidiary lists, codes of conduct, insider trading and clawback policies, plus auditor and technical expert consents tied to the company’s mineral projects.

On which exchange are Aura Minerals (AUGO) Common Shares listed?

Aura Minerals’ Common Shares, with no par value, trade on the Nasdaq Global Select Market under the symbol AUGO. This listing aligns the company’s mineral operations and related technical disclosures with U.S. investors through a major U.S. stock exchange.

Does Aura Minerals’ Form 20-F amendment change its financial statements?

The amendment states it is filed solely to add the Matupá Technical Report Summary as an exhibit. The audited consolidated financial statements are already part of the annual report, and the text does not indicate any changes to those financial statements.

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 20-F/A

(Amendment No. 2)

(Mark One)

☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934

OR

☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended 2025.

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from to .

OR

☐ SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
Date of event requiring this shell company report

Commission file number: 001-42744

AURA MINERALS INC.
(Exact name of Registrant as specified in its charter)

Not applicable
(Translation of Registrant’s name into English)

British Virgin Islands
(Jurisdiction of incorporation)

c/o Aura Technical Services Inc.

3390 Mary St.,

Suite 116, Coconut Grove,

Florida, 33133, United States
(Address of principal executive offices)

Joao Kleber Cardoso, Chief Financial Officer and Corporate Secretary
c/o Aura Technical Services Inc.

3390 Mary St.,

Suite 116, Coconut Grove,

Florida, 33133, United States
(Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person)

Securities registered or to be registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbol		Name of each exchange on which registered
Common Shares, no par value		AUGO		Nasdaq Global Select Market

Securities registered or to be registered pursuant to Section 12(g) of the Act:

None
(Title of Class)

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act:

None
(Title of Class)

Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period covered by the annual report. 83,789,223 Common Shares

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Yes ☐            No ☒

If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.

Yes ☐            No ☒

Note – Checking the box above will not relieve any registrant required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 from their obligations under those Sections.

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes ☒            No ☐

Indicate by check mark whether the registrant has submitted electronically, every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Yes ☒            No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or an emerging growth company. See definition of “large accelerated filer”, “accelerated filer”, and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large Accelerated Filer ☐      Accelerated Filer ☐      Non-accelerated Filer ☒      Emerging growth company ☒

If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards† provided pursuant to Section 13(a) of the Exchange Act. ☐

† The term “new or revised financial accounting standard” refers to any update issued by the Financial Accounting Standards Board to its Accounting Standards Codification after April 5, 2012.

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report ☐

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b): ☐

Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing:

☐ U.S. GAAP

☒ International Financial Reporting Standards as issued by the International Accounting Standards Board

☐ Other

If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the registrant has elected to follow.

☐ Item 17            ☐ Item 18

If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ☐            No ☒

EXPLANATORY NOTE

Aura Minerals Inc (the “Company”) filed the Form 20-F on March 31, 2026 (the “20-F”). The Company is filing this Amendment No. 2 for the sole purpose of filing the Technical Report Summary on the Feasibility Study for the Matupá Gold Project and Initial Assessment for Serrinhas and Pé Quente Targets, Matupá Municipality, Mato Grosso, Brazil, as it was too large to be filed with the Form 20-F.

TABLE OF CONTENTS

Page

Part III	1
Item 17. Financial Statements	1
Item 18. Financial Statements	1
Item 19. Exhibits	1

i

Part III

Item 17. Financial Statements

We have responded to Item 18 in lieu of this item.

Item 18. Financial Statements

Our audited consolidated financial statements are filed as part of this annual report, starting on page F-1.

Item 19. Exhibits

We are filing the following documents as part of this annual report on Form 20-F:

Exhibit Number		Description
1.1		Memorandum and Articles of Association of Aura Minerals, Inc. (incorporated herein by reference to Exhibit 3.1 to the Company’s Registration Statement on Form F-1 (File No. 333-287864 filed with the SEC on June 6, 2025)),
2.1**		Description of Securities.
4.1		Omnibus Incentive Plan (incorporated herein by reference to Exhibit 10.1 to the Company’s Registration Statement on Form F-1 (File No. 333-287864 filed with the SEC on June 6, 2025)).
4.2#		Trafigura Copper Concentrate Offtake Agreement dated May 21, 2024 (incorporated herein by reference to Exhibit 10.2 to the Company’s Registration Statement on Form F-1 (File No. 333-287864 filed with the SEC on June 6, 2025)).
4.3		English Translation of Indenture dated September 8, 2024 Relating to Second Issuance of Debentures (incorporated herein by reference to Exhibit 10.3 to the Company’s Registration Statement on Form F-1 (File No. 333-287864 filed with the SEC on June 6, 2025)).
4.4		English Translation of Amendment No. 1 to Indenture Relating to Second Issuance of Debentures dated September 25 2024 (incorporated herein by reference to Exhibit 10.4 to the Company’s Registration Statement on Form F-1 (File No. 333-287864 filed with the SEC on June 6, 2025)).
4.5		English Translation of Amendment No. 2 to Indenture Relating to Second Issuance of Debentures dated October 15 2024 (incorporated herein by reference to Exhibit 10.5 to the Company’s Registration Statement on Form F-1 (File No. 333-287864 filed with the SEC on June 6, 2025)).
4.6		English Translation of Credit Note between Cascar Brasil Mineracao Ltda and Banco Santander (Brasil) S.A., Luxembourg Branch dated September 5, 2023 (incorporated herein by reference to Exhibit 10.6 to the Company’s Registration Statement on Form F-1 (File No. 333-287864 filed with the SEC on June 6, 2025)).
4.7		English Translation of Swap Agreement between Aura Almas Mineracao S.A. and Itau Unibanco S.A. dated October 15 2024 (incorporated herein by reference to Exhibit 10.7 to the Company’s Registration Statement on Form F-1 (File No. 333-287864 filed with the SEC on June 6, 2025)).
4.8		Guarantee between Aura Minerals Inc. and Itau Unibanco S.A. dated January 21, 2025 relating to the Swap Agreement between Aura Almas Mineracao S.A. and Itau Unibanco S.A. dated October 15, 2024 (incorporated herein by reference to Exhibit 10.8 to the Company’s Registration Statement on Form F-1 (File No. 333-287864 filed with the SEC on June 6, 2025)).

1

Exhibit Number		Description
4.9		Loan Agreement between Mineracao Apoena S.A. and Banco Bradesco S.A., acting through its Grand Cayman Branch dated December 17, 2024 (incorporated herein by reference to Exhibit 10.9 to the Company’s Registration Statement on Form F-1 (File No. 333-287864 filed with the SEC on June 6, 2025)).
4.10		English translation of Credit Agreement between Aranzazu Holding S.A. de C.V. and Banco Santander Mexico, S.A., Institucion de Banca Multiple, Grupo Financero Santander Mexico dated August 14, 2024 (incorporated herein by reference to Exhibit 10.10 to the Company’s Registration Statement on Form F-1 (File No. 333-287864 filed with the SEC on June 6, 2025)).
4.11		Share Purchase Agreement between AngloGold South America Limited, Cascar Do Brasil Mineracao Ltda and Aura Minerals Inc. dated June 2, 2025 (incorporated herein by reference to Exhibit 10.11 to the Company’s Registration Statement on Form F-1 (File No. 333-287864 filed with the SEC on June 6, 2025)).
8.1**		List of subsidiaries.
11.1**		Code of Conduct.
11.2**		Insider Trading Policy.
12.1**		Certification pursuant to section 302 of the Sarbanes-Oxley Act of 2002 of the Chief Executive Officer.
12.2**		Certification pursuant to section 302 of the Sarbanes-Oxley Act of 2002 of the Chief Financial Officer.
13.1**		Certification pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, of the Chief Executive Officer.
13.2**		Certification pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, of the Chief Financial Officer.
15.1**		Consent of KPMG Auditores Independentes, Independent Registered Public Accounting Firm.
15.2**		Consent of Grant Thornton Auditores Independentes Ltda, Independent Registered Public Accounting Firm.
15.3**		Consent of SLR Consulting (Canada) Ltd
15.4**		Consents of Farshid Ghazanfari
15.5**		Consents of Luiz Eduardo Campos Pignatari
15.6**		Consents of Homero Delboni Jr
15.7**		Consent of Branca Horta de Almeida Abrantes
15.8**		Consent of Bruno Yoshida Tomaselli
15.9**		Consent of SRK Consulting (U.S.), Inc.
15.10**		Consents of Porfirio Cabaleiro Rodriguez

2

Exhibit Number		Description
15.11**		Consent of Ausenco do Brasil Engenharia Ltda.
15.12**		Consent of GE21 Consultoria Mineral
15.13**		Consent of Snowden Optiro
15.14**		Consent of Kirkham Geosystems Ltd.
96.1		S-K 1300 Technical Report Summary and Mineral Resource Estimate entitled S-K 1300 Technical Report Summary, Aranzazu Mine, Zacatecas, Mexico (incorporated herein by reference to Exhibit 96.1 to the Company’s Registration Statement on Form F-1 (File No. 333-287864 filed with the SEC on June 6, 2025)).
96.2**		S-K 1300 Technical Report Summary and Mineral Resource Estimate entitled Technical Report Summary on the Feasibility Study for the Borborema Gold Project, Currais Novos Municipality, Rio Grande do Norte, Brazil.
96.3		S-K 1300 Technical Report Summary and Mineral Resource Estimate entitled S-K1300 Technical Report Summary Apoena Mine (EPP Complex) Mineral Resource and Mineral Reserve, Mato Grosso, Brazil (incorporated herein by reference to Exhibit 96.3 to the Amendment No. 2 of the Company’s Registration Statement on Form F-1 (File No. 333-287864 filed with the SEC on June 9, 2025)).
96.4**		S-K 1300 Technical Report Summary and Mineral Resource Estimate entitled S-K 1300 Technical Summary, Almas Project, Tocantins State, Brazil.
96.5		Technical Report Summary on the Feasibility Study for the Matupá Gold Project and Initial Assessment for Serrinhas and Pé Quente Targets, Matupá Municipality, Mato Grosso, Brazil.
96.6		S-K 1300 Technical Report Summary and Mineral Resource Estimate entitled S-K 1300 Technical Report Summary, San Andrés Mine, Department of Copán, Honduras (incorporated herein by reference to Exhibit 96.6 to the Amendment No. 1 of the Company’s Registration Statement on Form F-1 (File No. 333-287864 filed with the SEC on June 9, 2025)).
96.7		S-K 1300 Technical Report Summary and Mineral Resource Estimate entitled Technical Report Summary on the Feasibility Study for the Era Dorada Gold Project, Jutiapa, Guatemala (incorporated herein by reference to Exhibit 96.1 the Company’s Current Report on Form 6-K (File No. 001-42744 filed with the SEC on January 5, 2026)).
96.8*		S-K 1300 Technical Report Summary – Mineral Resource and Mineral Reserve on Mineração Serra Grande Project – Goiás, Brazil.
97.1**		Clawback policy.
101.INS*		Inline XBRL Instance Document.
101.SCH*		Inline XBRL Taxonomy Extension Schema Document.
101.CAL*		Inline XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF*		Inline XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB*		Inline XBRL Taxonomy Extension Label Linkbase Document.
101.PRE*		Inline XBRL Taxonomy Extension Presentation Linkbase Document.

3

Exhibit Number		Description
104*		Cover Page Interactive Data File (the cover page XBRL tags are embedded within the inline XBRL document).

	*	To be filed by amendment.
	**	Previously filed

4

SIGNATURES

The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and that it has duly caused and authorized the undersigned to sign this annual report on its behalf.

	AURA MINERALS INC.
	By:	/s/ Rodrigo Barbosa
		Name:	Rodrigo Barbosa
		Title:	President and CEO

Date: March 31, 2026