Welcome to our dedicated page for Ero Copper SEC filings (Ticker: ERO), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Ero Copper Corp. filings document a Canadian mining issuer that reports to the SEC primarily through Form 6-K submissions as a Form 40-F filer. The company’s regulatory documents include annual and interim management discussion and analysis, consolidated financial statements, press releases, and annual report materials covering the Caraíba Operations, Tucumã Operation, Xavantina Operations, and the Furnas Copper-Gold Project.
Filings also disclose mine operating reviews, liquidity and capital resources, contractual obligations, capital expenditures, non-IFRS performance measures, risk and uncertainty discussions, and accounting judgments. Additional exhibits cover governance matters such as meeting notices, project technical reports, precious-metals stream arrangements, credit agreement amendments, earn-in agreements, and Modern Slavery Act reporting for the company’s operations and supply chain.
GMT Capital Corp. and Thomas E. Claugus report beneficial ownership of 4,472,154 shares of ERO Copper Corp. common stock, representing 4.30% of the class. This percentage is calculated using 103,890,254 shares outstanding as of November 4, 2025.
They report shared voting and dispositive power over all 4,472,154 shares and no sole voting or dispositive power. The shares are held through various managed funds and separate accounts advised by GMT Capital, with Claugus as the control person directing GMT Capital’s operations.
The filing indicates ownership of 5 percent or less of the class and certifies that the securities were acquired and are held in the ordinary course of business, not for the purpose of changing or influencing control of ERO Copper.
Ero Copper reported record 2025 production and a stronger balance sheet while outlining growth plans through 2028. Consolidated copper output reached 64,307 tonnes, with Q4 copper production of 19,706 tonnes and Q4 gold production of 13,837 ounces. Gold concentrate sales from Xavantina added a further 14,999 ounces in Q4.
Full-year gold, including concentrate sales, totaled 52,290 ounces. These results helped lift year-end liquidity to about $150 million, including $105 million in cash and $45 million of undrawn credit. For 2026, Ero guides consolidated copper production to 67,500–77,500 tonnes and Xavantina gold production to 40,000–50,000 ounces, with concentrate sales expected through mid-2027.
By 2028, consolidated copper production is projected to rise to 80,000–90,000 tonnes, supported by the Caraíba shaft project and higher throughput at Tucumã. 2026 capital spending is planned at $275–$320 million, including roughly $80 million for the new Pilar shaft and $30–$40 million to advance the Furnas Copper-Gold Project and other exploration.
Ero Copper Corp. plans to release its fourth quarter and full year 2025 operating and financial results on March 5, 2026, after market close. The Company will discuss the results on a conference call and webcast on March 6, 2026, at 11:30am Eastern time.
Ero is a Brazil-focused mining company operating two copper mines in Bahia and Pará states and a producing gold mine in Mato Grosso State, while advancing the Furnas Copper-Gold Project through an earn-in agreement. Its shares trade on the Toronto Stock Exchange and New York Stock Exchange under the symbol ERO.
Ero Copper Corp. submitted a foreign issuer report for December 2025 that primarily serves an administrative purpose. The company states that Exhibits 99.1 and 99.2 to this report are incorporated by reference into its existing Registration Statement on Form S-8 (File No. 333-264821) and its Registration Statement on Form F-10 (File No. 333-274097). Exhibit 99.1 is a press release dated December 19, 2025, and Exhibit 99.2 is a technical report on the Xavantina Operations in Mato Grosso, Brazil.
GMT Capital Corp. and Thomas E. Claugus filed Amendment No. 6 to Schedule 13G reporting beneficial ownership in ERO Copper Corp. They report 6,509,454 shares of common stock, representing 6.28% of the class, with shared voting and dispositive power and no sole power. The filing lists the Date of Event as 09/30/2025.
The percentage is calculated using 103,607,249 shares outstanding as of August 28, 2025, as referenced from a Short Form Base Shelf Prospectus. The certification states the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control.
FIL Limited and affiliates disclosed a passive stake in Ero Copper Corp. In an amended Schedule 13G, the group reported beneficial ownership of 11,471,710 shares of common stock, representing 11.1% of the class as of the 10/31/2025 event date.
According to the filing, FIL Limited has sole voting power over 10,220,016 shares and sole dispositive power over 11,471,710 shares, with no shared voting or dispositive power. Co-reporting persons include Pandanus Partners, L.P. and Pandanus Associates, Inc.
The certification states the securities were acquired and are held in the ordinary course and not for the purpose of changing or influencing control of the issuer.
FIL Limited and affiliated entities filed a Schedule 13G reporting beneficial ownership of 6,703,995 shares of Ero Copper Corp common stock, representing 6.5% of the class as of September 30, 2025.
The filing lists sole voting power over 6,149,891 shares and sole dispositive power over 6,703,995 shares, with no shared voting or dispositive power. Reporting persons include FIL Limited, Pandanus Partners, L.P., and Pandanus Associates, Inc.
The signatory certifies the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer.
Ero Copper Corp. submitted a Form 6-K as a foreign private issuer for November 2025. The filing mainly furnishes supporting documents related to the company’s quarterly reporting.
The report includes three key exhibits: a Management’s Discussion and Analysis for the three and nine months ended September 30, 2025, condensed consolidated interim financial statements for the same periods, and a press release dated November 4, 2025. These materials provide investors with narrative, financial, and news updates on the company’s recent operating and financial performance.
Ero Copper Corp. furnished a Form 6-K announcing Exhibit 99.1, the Ero Copper 2024 Sustainability Report. The exhibit is incorporated by reference into the company’s Form S-8 (File No. 333-264821) and Form F-10 (File No. 333-274097). The filing also notes the company files annual reports under cover of Form 40-F.