Overview
- The 2015 Mariana dam collapse in Brazil released toxic sludge, killing 19 people, displacing thousands, and devastating the Doce River and surrounding areas.
- Over 600,000 Brazilians, local governments, and businesses are suing BHP in London for up to £36 billion ($47 billion) in damages, one of the largest lawsuits in English legal history.
- BHP argues it did not directly manage the dam, which was operated by Samarco, a joint venture it co-owned with Brazilian mining company Vale.
- Victims' representatives claim BHP was aware of safety risks and pushed for increased production, contributing to the dam's failure.
- A verdict is expected by mid-2025, with a potential follow-up trial in 2026 to determine compensation amounts if BHP is found liable.