The prosecutors' office has not ruled out other legal measures.

Rio Tinto posted a 3% drop in iron ore shipments in 2019.

Vale cited the need to do a technical evaluation and potentially carry out work to improve safety at the site.

The police probe is one of several parallel investigations into the causes of the dam's collapse, which killed at least 255 people just under a year ago.

AVL signed a letter of intent with Hebei Yanshan Vanadium and Titanium Industry Technology Research.

Vale is a majority owner in Aliança Energia with a 55% stake.

Lindsay Maxsted remain a member of the board, and on the risk and audit committees until the 2020 annual general meeting.