ERO.TO · 2026-06-29 12:00:00

Ero Copper Announces Voting Results of Annual General and Special Meeting of Shareholders

Shareholder Meetings

June 29, 2026

Ero Copper Announces Voting Results of Annual General and Special Meeting of

Shareholders

Vancouver, British Columbia – Ero Copper Corp. (TSX: ERO, NYSE: ERO) ("Ero" or the

“Company”) reported the voting results from its Annual General and Special Meeting of

Shareholders held today in Vancouver, British Columbia. A total of 86,534,152 common

shares were represented at the meeting, being 82.98% of the issued and outstanding

common shares of the Company as at the May 4, 2026 record date. Shareholders voted in

favour of all items of business before the meeting, including the re-election of management’s

nominees as directors for the ensuing year and the advisory vote on executive compensation.

Detailed results of the votes are presented below.

Each item of business voted upon at the meeting is described in detail in the Company's

Management Information Circular dated May 8, 2026 (the “Circular”), which is available on

the Company's website (www.ero.com), on SEDAR+ (www.sedarplus.ca/home/) and on

EDGAR (www.sec.gov).

ELECTION OF DIRECTORS

Shareholders re-elected ten directors as follows:

Number of Common Shares Voted Percentage of Votes Cast

Director Nominee For Withheld For Withheld

David Strang 74,367,868 917,666 98.78% 1.22%

Makko DeFilippo 75,049,140 236,394 99.69% 0.31%

Jill Angevine 73,941,527 1,344,007 98.21% 1.79%

Lyle Braaten 73,783,377 1,502,157 98.00% 2.00%

Steven Busby 73,781,073 1,504,461 98.00% 2.00%

Dr. Sally Eyre 74,158,626 1,126,908 98.50% 1.50%

Robert Getz 73,466,792 1,818,742 97.58% 2.42%

Chantal Gosselin 72,932,160 2,353,373 96.87% 3.13%

Faheem Tejani 74,371,545 913,988 98.79% 1.21%

John Wright 74,495,541 789,992 98.95% 1.05%

TSX: ERO

NYSE: ERO

1 Ero

APPOINTMENT OF AUDITOR

Shareholders re-appointed KPMG LLP, Chartered Professional Accountants, as the auditor of

the Company and authorized the directors of the Company to fix the remuneration to be paid

to the auditor with 97.47% of votes cast in favour.

CERTAIN MATTERS RELATING TO THE STOCK OPTION PLAN

Shareholders authorized and approved the Amended and Restated Company’s Stock Option

Plan, including amendments thereto, and the unallocated options issuable thereunder with

95.64% of votes cast in favour.

CERTAIN MATTERS RELATING TO THE SHARE UNIT PLAN

Shareholders authorized and approved the Amended and Restated Company’s Share Unit

Plan, including amendments thereto, and the unallocated units issuable thereunder with

80.33% of votes cast in favour.

ADVISORY VOTE ON EXECUTIVE COMPENSATION

Shareholders approved the non-binding advisory “say on pay” resolution accepting the

Company’s approach to executive compensation as described in the Circular with 98.64% of

votes cast in favour.

ABOUT ERO

Ero is a Brazil-focused, growth-oriented mining company with a diversified portfolio of copper

and gold assets. Headquartered in Vancouver, B.C., the Company operates two copper mines

– the Caraíba Operations in Bahia State and the Tucumã Operation in Pará State – as well as

the Xavantina Operations, a producing gold mine in Mato Grosso State. In addition to its

operating assets, Ero is advancing the Furnas Copper-Gold Project, located in the mineral-rich

Carajás Province in Pará State, through a definitive earn-in agreement with Vale Base Metals

to acquire a 60% interest in the project.

Ero’s operating philosophy is grounded in a commitment to safety, operational excellence,

and the responsible production of minerals essential for a better tomorrow. The Company’s

shares are publicly traded on the Toronto Stock Exchange and the New York Stock Exchange

under the symbol “ERO.” Additional information, including technical reports on the

Company’s operations and projects, is available on the Company’s website (www.ero.com),

SEDAR+ (www.sedarplus.ca), and on EDGAR (www.sec.gov).

FOR MORE INFORMATION, PLEASE CONTACT

Farooq Hamed, VP, Investor Relations

[email protected]

TSX: ERO

NYSE: ERO

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