UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16

under the Securities Exchange Act of 1934

For the month of May 2026

Commission File Number 001-40459

ERO COPPER CORP.

(Translation of registrant's name into English)

625 Howe Street, Suite 1050

Vancouver, British Columbia V6C 2T6

Canada

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F ☐ Form 40-F ☒

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1).

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7).

Exhibits 99.1, 99.2 and 99.3 of this Form 6-K is incorporated by reference as an additional exhibit to the registrant’s Registration Statement on Form S-8 (File NO. 333-264821) and Registration Statement on Form F-10 (File NO. 333-289969).

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.


	Ero Copper Corp.

	By:	/s/ Deepk Hundal
		Name: Deepk Hundal
		Title: EVP, General Counsel and Corporate Secretary
Date: May 4, 2026

Exhibit Index


Exhibit Number						Description of Document

99.1						Management’s Discussion and Analysis for the three months ended March 31, 2026
99.2						Condensed Consolidated Interim Financial Statements for the three months ended March 31, 2026 and 2025
99.3						Press Release dated May 4, 2026

Ero Copper Corp. 6-K