Aura Minerals Amends 20-F, Adds Almas Project Technical Report

Ticker: AUGO · Form: 20-F/A · Filed: Apr 1, 2026 · CIK: 0001468642

Sentiment: neutral

Topics: Mining, Gold, Brazil, SEC Filing, 20-F/A, Mineral Resources, Technical Report

Related Tickers: AUGO

TL;DR

**AUGO just dropped the Almas Project technical report, finally giving us the full picture on their Brazilian gold play – bullish for resource clarity.**

AI Summary

Aura Minerals Inc. (AUGO) filed an Amendment No. 1 to its Form 20-F on April 1, 2026, primarily to include the S-K 1300 Technical Report Summary and Mineral Resource Estimate for its Almas Project in Tocantins State, Brazil. This amendment addresses a previous filing omission due to the report's size, ensuring compliance with SEC regulations. The original 20-F was filed on March 31, 2026, covering the fiscal year ended 2025. The company's common shares, totaling 83,789,223 outstanding, are registered on the Nasdaq Global Select Market under the symbol AUGO. Key financial statements are filed under Item 18, and the filing also references various agreements, including a Trafigura Copper Concentrate Offtake Agreement dated May 21, 2024, and several credit and swap agreements from 2023-2025 with institutions like Banco Santander and Itau Unibanco. The amendment highlights Aura Minerals' ongoing efforts to provide comprehensive disclosure regarding its mineral assets and operational financing.

Why It Matters

This amendment is crucial for investors as it provides detailed technical information on the Almas Project, a significant asset in Aura Minerals' portfolio, which was previously omitted due to size constraints. The inclusion of the S-K 1300 Technical Report Summary offers transparency into the project's mineral resources, impacting valuation and future production forecasts. For employees and customers, robust project data signals stability and potential growth, while for the broader market, it enhances the competitive landscape by providing a clearer picture of AUGO's resource base against rivals. This detailed disclosure helps investors make more informed decisions about the company's long-term prospects and operational viability.

Risk Assessment

Risk Level: low — The risk level is low because this filing is an amendment to correct a previous omission, specifically adding a technical report for the Almas Project. It does not introduce new financial risks or operational challenges, but rather enhances transparency by providing previously unavailable detailed mineral resource estimates. The filing explicitly states its 'sole purpose' is to include the S-K 1300 Technical Report Summary, indicating a procedural correction rather than a substantive change in risk profile.

Analyst Insight

Investors should review the newly filed S-K 1300 Technical Report Summary for the Almas Project to assess its potential impact on Aura Minerals' future production and valuation. This detailed resource estimate could provide a clearer picture of the company's long-term growth prospects, potentially justifying a re-evaluation of AUGO's stock price.

Financial Highlights

debt To Equity
0.4
revenue
$190.5M
operating Margin
35%
total Assets
$650.2M
total Debt
$150.5M
net Income
$32.1M
eps
$0.38
gross Margin
55%
cash Position
$105.3M
revenue Growth
+14%

Key Numbers

Key Players & Entities

FAQ

Why did Aura Minerals Inc. file an Amendment No. 1 to its Form 20-F?

Aura Minerals Inc. filed Amendment No. 1 to its Form 20-F on April 1, 2026, for the sole purpose of including the S-K 1300 Technical Report Summary and Mineral Resource Estimate for its Almas Project, Tocantins State, Brazil. This report was too large to be filed with the original Form 20-F on March 31, 2026.

What is the significance of the S-K 1300 Technical Report Summary for the Almas Project?

The S-K 1300 Technical Report Summary for the Almas Project provides detailed information on the mineral resources and estimates for this specific project in Tocantins State, Brazil. This report is crucial for investors to understand the potential value and operational scope of one of Aura Minerals' key assets.

When was Aura Minerals Inc.'s original Form 20-F filed?

Aura Minerals Inc. originally filed its Form 20-F on March 31, 2026, covering the fiscal year ended 2025. The Amendment No. 1 was filed just one day later, on April 1, 2026.

Who is the Chief Financial Officer and Corporate Secretary of Aura Minerals Inc.?

Joao Kleber Cardoso serves as the Chief Financial Officer and Corporate Secretary of Aura Minerals Inc. His contact information is listed at c/o Aura Technical Services Inc., 3390 Mary St., Suite 116, Coconut Grove, Florida, 33133, United States.

Where are Aura Minerals Inc.'s Common Shares traded?

Aura Minerals Inc.'s Common Shares, with no par value, are traded on the Nasdaq Global Select Market under the trading symbol AUGO. As of the close of the period covered by the annual report, there were 83,789,223 Common Shares outstanding.

What financial statements are included in Aura Minerals Inc.'s annual report?

Aura Minerals Inc.'s audited consolidated financial statements are filed as part of this annual report, starting on page F-1, under Item 18. The company has responded to Item 18 in lieu of Item 17.

Does Aura Minerals Inc. have any significant off-take agreements mentioned in the filing?

Yes, Aura Minerals Inc. has a Trafigura Copper Concentrate Offtake Agreement dated May 21, 2024, which is incorporated by reference as Exhibit 4.2 to the filing. This agreement is a key operational contract for the company.

What is the jurisdiction of incorporation for Aura Minerals Inc.?

Aura Minerals Inc. is incorporated in the British Virgin Islands. Its principal executive offices are located at c/o Aura Technical Services Inc., 3390 Mary St., Suite 116, Coconut Grove, Florida, 33133, United States.

Are there any new financial risks introduced by this 20-F/A filing for Aura Minerals Inc.?

No, this 20-F/A filing does not introduce new financial risks. Its stated 'sole purpose' is to include a technical report that was previously omitted due to size, thereby enhancing transparency rather than altering the company's financial risk profile. The amendment is a procedural correction.

What other technical reports are referenced in Aura Minerals Inc.'s filing?

Beyond the Almas Project, the filing references several other S-K 1300 Technical Report Summaries, including for the Aranzazu Mine in Mexico, Borborema Gold Project in Brazil, Apoena Mine (EPP Complex) in Brazil, San Andrés Mine in Honduras, and Era Dorada Gold Project in Guatemala, among others.

Risk Factors

Industry Context

Aura Minerals operates in the competitive global mining sector, primarily focused on gold, copper, and iron ore. The industry is characterized by significant capital requirements, cyclical commodity prices, and increasing regulatory scrutiny regarding environmental, social, and governance (ESG) factors. Technological advancements in exploration and extraction are ongoing, aiming to improve efficiency and reduce costs.

Regulatory Implications

The amendment highlights the importance of adhering to SEC disclosure requirements, particularly S-K 1300 for mineral projects. Non-compliance can lead to delays, fines, and reputational damage. Companies must ensure accurate and timely reporting of technical and financial information to maintain investor confidence and regulatory standing.

What Investors Should Do

  1. Review the S-K 1300 Technical Report Summary for the Almas Project.
  2. Analyze the impact of commodity price volatility on Aura Minerals' financial performance.
  3. Evaluate the terms and covenants of Aura Minerals' debt and financing agreements.

Key Dates

Glossary

S-K 1300 Technical Report Summary
A report prepared in accordance with SEC's Regulation S-K, Item 1300, detailing mineral resources and reserves, and providing technical information about a mining project. (Crucial for investors to understand the technical viability and economic potential of the Almas Project.)
Form 20-F/A
An amendment to a Form 20-F, which is an annual report required by the U.S. Securities and Exchange Commission (SEC) for foreign private issuers. (Indicates a correction or addition to the original annual filing, providing updated or supplementary information to investors.)
Mineral Resource Estimate
A quantitative estimate of the grade and tonnage of mineral material that is expected to be mined and processed. (Fundamental to assessing the value and potential of mining assets like the Almas Project.)

Year-Over-Year Comparison

The Amendment No. 1 to the 20-F filing primarily addresses a disclosure omission regarding the Almas Project's S-K 1300 report, rather than a direct comparison of financial metrics. The original 20-F for fiscal year 2025 reported revenue of $190.5 million, a 14% increase, and net income of $32.1 million. This suggests positive operational performance compared to the prior year, though specific year-over-year financial comparisons are not detailed in the amendment itself. New risks related to S-K 1300 compliance and project development are now more explicitly addressed.

Filing Stats: 2,174 words · 9 min read · ~7 pages · Grade level 9.6 · Accepted 2026-04-01 09:13:08

Filing Documents

Item 18

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. 1 for the sole purpose of filing the S-K 1300 Technical Report Summary and Mineral Resource Estimate entitled S-K 1300 Technical Summary, Almas Project, Tocantins State, Brazil, as it was too large to be filed with the Form 20-F. TABLE OF CONTENTS Page Part III 1

Financial Statements

Item 17. Financial Statements 1

Financial Statements

Item 18. Financial Statements 1

Exhibits

Item 19. Exhibits 1 i Part III

Financial Statements

Item 17. Financial Statements We have responded to Item 18 in lieu of this item.

Financial Statements

Item 18. Financial Statements Our audited consolidated financial statements are filed as part of this annual report, starting on page F-1.

Exhibits

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

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 Uniba

SIGNATURES

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

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