(i) On December 16, 2025, the Company implemented a new gold and silver revenue hedge program using Zero Cost Collar (“ZCC”) derivative instruments as part of its commodity risk management strategy. This was done to reduce the Peru operations' exposure to commodity price risk in 2026 and to protect its margins. The ZCC have monthly maturities until December 2026, in line with the forecast volume percentages provided by the commercial team. A ZCC involves simultaneously buying and selling options to limit exposure to adverse price movements of commodities while capping potential gains within a predefined range.

(ii) On March 28, 2025, NEXA executed a cross-currency swap with a notional amount of USD 112,652 (BRL 650,000 at the transaction date) to hedge the BRL exposure related to Nexa BR debentures issued on April 2, 2024, in the same BRL amount. The swap mirrors the interest and principal payment terms of the debentures, which mature on March 28, 2030, with semi-annual payments. Under the agreement, NEXA pays 6.209% on the USD notional receives CDI + 1.50% p.a. floating on the BRL notional. This instrument is recognized at fair value through profit or loss (FVTPL) under net financial results. Since inception, the Company has recorded increased impacts from changes in BRL exposure on related assets and liabilities, compared to December 2024, as presented in Table A above.