[REVISION HISTORY]

Mariana Fundão dam disaster legal developments

Updated 2 times since CLSTR started tracking revisions of this situation.

What changed

2026-09-05 04:52 UTC → 2026-09-06 02:56 UTC · added ~~removed~~

Legal proceedings regarding the 2015 Fundão dam collapse in Mariana have seen significant developments in civil settlements and criminal convictions. In August 2026, the municipality of Mariana agreed to a reparation settlement following a repactuation of damages ratified by the Brazilian Supreme Federal Court. Under this agreement, the city will drop a multi-billion real lawsuit in London against BHP in exchange for approximately R$ 1.2 billion and additional negotiated benefits and works for the municipality. In September 2026, the Federal Regional Court of the 6th Region (TRF-6) overturned a previous acquittal, convicting the mining company Samarco and three former operational managers. The managers—identified as Germano Silva Lopes, Daviély Rodrigues Silva, and Wagner Milagres Alves—received prison sentences ranging from approximately 7 to 9 years for qualified pollution and flooding resulting in death. The court ruled that the company and its executives were aware of the risks but ignored warnings. Samarco was also held criminally liable for qualified pollution resulting in death, receiving a sentence that includes a ten-year prohibition on contracting with public authorities and a fine of approximately R$ 1 7.2 million ~~payment~~ to ~~the National Environmental Fund.~~ be paid to environmental funds. While Samarco and the managers were convicted, other defendants, including Vale and BHP, maintained their acquittals.

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