Ero Copper SEC Filings

Ero Copper Corp. reported the results of its Annual General and Special Meeting, where shareholders strongly supported all management proposals. Turnout was high, with 86,534,152 common shares represented, equal to 82.98% of the 104,277,968 shares outstanding as of the May 4, 2026 record date.

All ten director nominees were re-elected, each receiving at least 96.87% of votes cast. KPMG LLP was re-appointed auditor with 97.47% support. Shareholders approved the amended Stock Option Plan (95.64% for) and the amended Share Unit Plan (80.33% for), and backed the advisory “say on pay” executive compensation resolution with 98.64% support.

Ero Copper reported strong exploration progress at its Furnas Copper-Gold Project in Brazil, based on assay results from about 24,000 meters of additional drilling, bringing total drilling to over 75,000 meters with ten rigs active. New step-out holes in the SE and Central zones, such as 90 meters at 0.74% copper and 0.50 g/t gold in hole FURN-DD-00357 and 41 meters at 0.94% copper and 0.44 g/t gold in FURN-DD-00368, extend mineralization along strike and at depth. Infill holes, including 88 meters at 0.81% copper and 0.61 g/t gold in FURN-DD-00340, support continuity in the SE and NW zones for future resource upgrades.

The company expects to complete three contractual drilling programs under its earn-in agreement by year-end 2026, which would secure a 60% interest in Furnas, and is advancing permitting and technical work toward a Pre-Feasibility Study targeted for 2027. A prior PEA outlined a 24-year mine life with average annual production of 81 kt CuEq and 108 kt CuEq over the first 15 years.

Ero Copper Corp. has called its 2026 annual general and special meeting for June 29, 2026 at 3:30 p.m. Vancouver time in Vancouver. Shareholders of record on May 4, 2026 may vote in person or by proxy, with proxy and VIF deadlines on June 25.

Items include receiving 2025 audited financials, re-electing ten directors, and reappointing KPMG LLP as auditor. Investors will vote on amended Stock Option and Share Unit plans that lower total equity available from 7% to 6% of shares and on a non-binding say‑on‑pay resolution.

The circular explains notice-and-access delivery of proxy materials, share ownership and experience of each board nominee, and a detailed pay‑for‑performance compensation framework with significant at‑risk and equity-based executive and director pay aligned to long-term shareholder value.

FMR LLC filed Amendment No. 4 to Schedule 13G/A reporting beneficial ownership of 9,589,099 shares of Ero Copper Corp common stock, representing 9.2% of the class. The filing lists sole dispositive and sole voting power over those shares and references an attached 13d-1(k) agreement.

The cover identifies Abigail P. Johnson with shared dispositive power recorded and the filing is signed under a power of attorney effective April 13, 2026.

ERO Copper Corp ownership disclosure: FIL Limited reports beneficial ownership of 10,466,217 shares of ERO Copper Corp common stock, representing 10.0% of the class as of 03/31/2026. The filing states FIL Limited holds sole dispositive power over the shares and identifies Pandanus Partners, L.P. and Pandanus Associates, Inc. as related entities. The filing references an exhibit for subsidiary/agent details and incorporates a power of attorney executed April 13, 2026.

Ero Copper Corp. reported solid Q1 2026 results, driven by strong copper operations, higher metal prices and foreign-exchange gains, while reaffirming full-year 2026 guidance. Revenue reached $263.2 million and net income was $109.3 million, or $1.04 per diluted share.

Consolidated copper production was 17,287 tonnes at C1 cash costs of $2.39/lb, with Caraíba at 8,826 tonnes and Tucumã at 8,461 tonnes. Xavantina produced 5,495 oz of gold at higher unit costs while ventilation and cooling upgrades were completed.

Adjusted EBITDA was $125.2 million, operating cash flow was $92.8 million, and net debt declined to $490.7 million. Available liquidity totaled $146.2 million. The company maintained 2026 copper production guidance of 67,500–77,500 tonnes, gold guidance of 40,000–50,000 oz, and capital expenditure guidance of $275–$320 million, while advancing the Furnas Copper-Gold Project, which has a PEA outlining an after-tax NPV(8%) of $2.0 billion and a 27.0% after-tax IRR.

Ero Copper Corp. has scheduled its Annual General and Special Meeting of security holders in Vancouver on June 29, 2026. The company set May 4, 2026 as the record date for notice, voting, and beneficial ownership determination.

Both registered and beneficial holders will receive proxy-related materials using a notice-and-access approach. Computershare is acting as the agent, and the voting securities covered are the company’s common shares.

Ero Copper Corp. will publish its first quarter 2026 operating and financial results on May 4, 2026 after market close. The company will hold a conference call on May 5, 2026 at 11:30am Eastern time to discuss the results, with a slide presentation available via webcast and on its website.

Ero describes itself as a Brazil-focused, growth-oriented mining company with copper operations at Caraíba in Bahia and Tucumã in Pará, and the Xavantina gold mine in Mato Grosso. It is also advancing the Furnas Copper-Gold Project in Pará through a definitive earn-in agreement to acquire a 60% interest.

ERO Copper Corp. filed its Annual Report on Form 40-F for the fiscal year ended December 31, 2025. The filing states there were 104,192,288 common shares outstanding as of December 31, 2025 and incorporates the AIF, MD&A and audited consolidated financial statements by reference. Management concluded that disclosure controls and procedures were effective and reported no changes materially affecting internal control over financial reporting. The independent registered public accounting firm for the year was KPMG LLP. Exhibits and certifications are listed in the exhibit index.