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Brazil Bans Upstream Mining Dams After Vale’s Latest Disaster

  • Vale had already started decommissioning its upstream dams
  • Majority of targeted dams belong to small mining operations
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Brazil is prohibiting a specific type of tailings dam after two of those structures owned by miner Vale SA burst in recent years, causing death and environmental devastation.

All so-called upstream dams need to be decommissioned or removed by August 2021, according to a resolution the National Mining Agency, or ANM, published on Monday in the nation’s official gazette. Dam owners have until Aug. 15 to complete a technical plan for the dams, which at a minimum need to include reinforcing existing structures or building new retention structures.