Salar de Punta Negra Court-Ordered Environmental Reparation — BHP Escondida Mine (Chile)

Escondida, in Chile's Antofagasta region (Atacama Desert), is the world's largest copper mine, operated by Minera Escondida (majority-owned by BHP). For decades the operation extracted groundwater from the nearby Salar de Punta Negra salt flat. Chile's environmental regulator (SMA) ruled against the company in July 2020, and the State Defense Council sued in April 2020 over aquifer-level decline exceeding the permitted 25 cm limit, deterioration of the saline substrate, and loss of bofedales (high-altitude Andean wetlands), vegetation, fauna habitat and ecosystem services.

On 4 June 2021, Chile's First Environmental Court of Antofagasta approved a conciliation agreement between the State Defense Council, the Consejo de Pueblos Atacamenos and Minera Escondida. BHP must fund at least US$81.1 million, rising to as much as US$93 million, across 19 management, compensation and restoration measures, including a multi-stakeholder governance table, removing infrastructure from the salar, conserving high-altitude wetlands and transhumance routes, protecting extremophile microorganism communities, accelerating aquifer recovery, and transferring water rights for conservation. The agreement has indefinite validity with mandatory five-year reviews; its first phase required eight technical studies to diagnose the salar's ecological condition following the 2019 cessation of groundwater extraction.

The settlement is a court-ordered reparation for proven, quantified damage rather than a voluntary 'net positive' offset. Sources reviewed (2020-2021 court and press reporting) do not include independently verified ecological-recovery results from the ongoing monitoring phase; the restoration outcomes themselves remain to be publicly demonstrated.