As filed with the Securities and Exchange Commission on March 27, 2024. UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 20-F ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended: December 31, 2023 Commission file number: 001-38256 NEXA RESOURCES S.A. (Exact name of Registrant as specified in its charter) Grand Duchy of Luxembourg (Jurisdiction of incorporation or organization) José Carlos del Valle Senior Vice President o ...