CSN invests efforts and resources into reducing its greenhouse gas emissions and mitigating the impacts related to climate change. Through the assessment of performance indicators related to greenhouse gas emissions, the CSN Group develops roadmaps to identify new technologies aimed at reducing these emissions and develops decarbonization journeys for its businesses. Given that the steelmaking, cement and mining segments have the most significant impacts, they each have their own decarbonization journeys.
Climate Change
CSN is committed to combating climate change and reducing its carbon footprint. While technologies to mitigate these emissions are not yet widely available or economically viable, the Company continues to seek sustainable solutions, aligning its environmental role with economic and social development.
In 2025, the CSN Group’s second Climate Action Report will be published. It will present advances in the Company’s climate strategy, risk assessment, and progress on its mitigation and adaptation plans. The Guidelines for Climate Governance will also be made available with full transparency.
Climate Strategy
The Company has publicly disclosed the CSN Group Climate Change & Decarbonization Guidelines, which consolidate its climate commitments within a framework structured around three pillars—Mitigation, Adaptation, and Stakeholder Engagement—that guide the Company’s response to the risks and opportunities associated with climate change.
Through its Climate Action Plan (CAP), the Company has organized 30 initiatives and approximately 180 actions aimed at reducing environmental impacts, adapting to climate change, and promoting transparent dialogue with different stakeholders.
Under the Mitigation pillar, CSN brings together initiatives related to its decarbonization pathways, structured in three phases:
- Blue (through 2030): operational efficiency;
- Olive (2030–2035): implementation of new technologies;
- Green (after 2035): adoption of disruptive technologies.
The Adaptation pillar guides CSN’s approach to identifying, assessing, and managing climate-related risks and opportunities, with a focus on strengthening the resilience of its assets and ensuring the long-term continuity of its operations.
The Stakeholder Engagement pillar aims to continuously integrate external factors into CSN’s climate strategy, enhancing decision-making quality and ensuring that the Company remains aligned with ongoing transformations in the global economy.
CSN promotes transparency with investors, regulators, and society through reports such as the Integrated Report and CDP disclosures, communicating its climate governance practices and progress toward the transition to a low-carbon economy. In addition, CSN engages with customers in sectors such as automotive and construction to develop products aligned with decarbonization objectives.
The Company will continue to expand this strategy to meet its customers’ evolving sustainability requirements.
Commitments to a low carbon emission
Steel Industry
10% reduction in CO₂e emissions per tonne of crude steel by 2030 and 20% by 2035, in accordance with the World Steel Association methodology.
Cement Industry
23% reduction in CO₂ emissions intensity per tonne of product compared to the baseline year, positioning CSN as the company with the lowest emissions intensity in Brazil’s cement industry.
Mining
30% reduction in CO₂e emissions per tonne of iron ore produced by 2035 (Scopes 1 and 2).
ESG Engagement
A CSN believes in the responsible and transparent management of the natural resources with which its operations interact. Annually, one of the ways the Company communicates its practices and environmental performance data to its stakeholders is by reporting to the CDP (Disclosure Insight Action).
Click here to view CSN’s 2025 report.
Click here to view CSN Mineração’s 2025 report.