(i) Scotiabank Peru S.A.A., an entity for which one member of the Company’s Board of Directors serves as an independent chairman and may have significant influence, has transactions with Nexa related to leasing and confirming operations. The outstanding balances arising from these transactions as of December 31, 2025, amounted to USD 8,667 (2024: USD 5,404) for leasing operations and USD 55,199 (2024: USD 24,812) for confirming operations. Confirming operations consist of arrangements whereby payments otherwise due to suppliers are settled through the bank. In addition, purchase transactions presented in chart (b) above relate to interest expenses on lease contracts.

(ii) Nexa entered into contracts with Consórcio Construtor Nova Aripuanã (a consortium of Andrade Gutierrez group companies) for construction and operational services related to the Aripuanã project. At that time, a close family member of one of the Company’s board members was considered to have significant influence on the holding level of Andrade Gutierrez. In mid-2024, the board member associated with this entity terminated their contract with Nexa, and Andrade Gutierrez ceased to be regarded as a related party.