BHP refused permission to appeal UK judgment over 2015 Brazil dam collapse

January 19, 2026 6:03 AM EST

A BHP Group logo is displayed on their building in Adelaide, Australia, September 18, 2025. REUTERS/Hollie Adams

By Sam Tobin

LONDON, Jan ⁠19 (Reuters) - BHP was ⁠on ‍Monday refused permission to appeal against a ruling that it is liable for the 2015 collapse of a dam in southeastern ‍Brazil, in a London lawsuit potentially worth tens of billions ​of pounds.

In November, London's High Court ruled BHP was legally responsible for the collapse of ​the Fundao dam in Mariana, southeastern Brazil, which was owned and operated by BHP and Vale's Samarco joint venture.

BHP's application for permission to appeal that ruling was denied ​by the High Court, though BHP said it will apply directly to the Court of Appeal.

"We will take our appeal to the Court ​of Appeal," a BHP spokesperson said in a statement. "BHP will continue to robustly defend the remaining phases ‌of this action in parallel.

"Brazil is the most appropriate avenue to provide full and fair remediation to those impacted."

The ​claimants' lawyers have previously valued the lawsuit, ⁠one of the largest in English legal history, at up to 36 billion pounds ($48.26 billion) and were seeking nearly ‌200 million pounds in legal fees after their initial victory.

The initial stage of the case was to determine whether BHP was liable to the claimants, with a ‌further trial to decide on damages to be paid due to begin in October, with ‌a ruling likely at some point in mid-2027.

Hundreds of thousands of Brazilians, dozens of local governments and around 2,000 businesses sued BHP over the collapse of the Fundao ‍dam, which was Brazil's worst environmental disaster.

The collapse unleashed a wave of toxic sludge that killed 19 people, left ⁠thousands homeless, flooded forests and polluted the length of the Doce River.

Judge Finola O'Farrell ruled last year that BHP should not have continued to raise the height of the dam, which ultimately caused its collapse.

($1 = 0.7459 pounds)

(Reporting by Sam Tobin; editing by William James)



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