The country's tax authority is asking Rio to pay $277m related to a 2015 borrowing used to pay an intragroup dividend.

Researches at the University of Waterloo found that catastrophic tailings flows have happened once every two to three years since 1965.

Researchers at the Queensland University of Technology propose the idea of using feldspars found in mine tailings as part of a potential cheaper catalyst for hydrogen fuel production.

A record 227 people were killed in 2020 for standing up against developments, including mining projects, a report by Global Witness shows.