In 2022, Nexa made three public ESG commitments related to GHG emissions, in alignment with the UN 2030 Agenda and the Sustainable Development Goals (SDGs):

• Reduce absolute Scope 1 emissions by 20% (equivalent to 52,000 tons of CO₂e), while maintaining an electricity mix that is predominantly renewable.
• Achieve emissions neutrality by 2040.
• Achieve Net Zero by 2050.

Between 2022 and 2025, we made significant progress in GHG emissions management:

• We automated a large part of data collection.
• We expanded integration with operations through workshops to present and discuss each unit’s inventories.
• We conducted training sessions with specialized consulting firms in 2023 and 2025.
• We achieved Gold Seal Certification in the 2023 and 2024 cycles.
• In 2025, we expanded the third-party verification criteria, moving to on-site audits with reasonable assurance, which are more robust and thorough.

All of this work reinforces our strategic goal of deepening our understanding of our main emission sources and identifying concrete opportunities to reduce Scope 1 emissions. In this process of continuous improvement, we identified the need to adjust the 2020 baseline, considering the current maturity level of the inventory—which now includes more Scope 1 categories—and the divestment of the Morro Agudo unit.

The performance analysis indicates that, in the short and medium term, priority actions include developing technological solutions to shift the energy mix, reducing fossil fuel consumption at critical points, and advancing operational efficiency to combat waste. It should be noted, however, that initiatives to change the energy mix involve R&D projects, which naturally present technical and operational risks. These risks are mapped and continuously monitored to ensure their mitigation and the safe progression of the initiatives.