Brazil rolls back mandatory sustainability reporting: what it means for global disclosure momentum

Brazil's Securities and Exchange Commission, known as the CVM, has amended its regulation requiring public companies to produce sustainability disclosures, shifting the framework from mandatory to voluntary. The change marks a significant reversal for a G20 economy that had been seen as a potential anchor for mandatory reporting standards in Latin America. The decision places Brazil alongside the United States, where the SEC has moved to rescind its own climate disclosure rule, in a broadening group of major economies stepping back from compulsory ESG reporting frameworks.

For European sustainability professionals, the shift carries practical implications beyond geography. Many CSRD reporting companies maintain supply chains, subsidiaries, or investee relationships in Brazil, and the expectation that local disclosure requirements would generate comparable data for Scope 3 reporting is now considerably weaker. The absence of mandatory local requirements means procurement and ESG teams relying on Brazilian counterparties for supply chain emissions data will face greater data gaps, not fewer, in the years ahead. Voluntary frameworks historically produce lower response rates and less standardised outputs than mandatory ones.

The CVM's decision arrives at a moment when the architecture of global sustainability reporting is under genuine stress. The IFRS Foundation's ISSB standards, which Brazil had been expected to incorporate, were designed in part on the assumption that major economies would translate them into binding requirements. A voluntary posture from Brazil weakens that assumption and reduces the pressure on other emerging market regulators considering similar frameworks. For in house ESG managers building consolidated group reports under ESRS E1 and related standards, the practical effect is that third party data from Brazilian entities will remain harder to verify and audit.

The contrast with the European trajectory remains stark. CSRD obligations for large non EU companies with significant European revenues are still on track, and the Commission has not signalled any intent to make the reporting framework voluntary. What is shifting is the realistic expectation that the data ecosystem surrounding European reporters will be as comprehensive as initially hoped. Procurement leads and Scope 3 data collectors will need to redouble direct supplier engagement efforts in markets where local regulation is no longer providing a structural push toward disclosure.

The broader picture is one of regulatory fragmentation hardening rather than resolving. While EFRAG continues to publish guidance through its ESRS Q&A platform to help companies interpret their obligations under European rules, the international environment is becoming more uneven. Companies reporting under CSRD who had anticipated that converging global standards would ease their data collection burden may need to revise that expectation. Watching how other Latin American markets, particularly those with active Article 6 carbon frameworks such as Ecuador, respond to Brazil's shift will be an early indicator of whether this is a regional trend or an isolated decision.