Brazil's Vale knew Brumadinho dam was unsafe as early as 2003 - internal report

FILE PHOTO: A view of a collapsed tailings dam owned by Brazilian mining company Vale SA, in Brumadinho, Brazil February 10, 2019. REUTERS/Washington Alves/File Photo

BRASILIA/RIO DE JANEIRO (Reuters) - An independent investigation requested by Brazilian iron ore miner Vale SA into the causes of the Brumadinho tailings dam disaster that killed 270 people a year ago found the company knew about the problem but failed to deal with it.

An executive summary of the report published by Vale on Thursday said the company had had information dating as far back as 2003 that pointed to the fragility of the main B1 dam.