NEXA · Nexa Resources filed its interim CEO and CFO certifications for the…

Nexa Resources filed its interim CEO and CFO certifications for the period ended September 30, 2026, as required under Canadian securities law (Form 52-109F2). The filing contains no financial results, guidance, or operational updates; it is a routine regulatory compliance filing.

• Filing contains CEO and CFO certifications for the interim period ended September 30, 2026.
• No financial results, earnings release, or operational data are included in the filing.
• The certifications reference an earnings release dated October 29, 2026, but that release is not attached to this filing.
• The filing is a routine regulatory compliance document under Canadian National Instrument 52-109.