On March 9, Vale issued a statement that it is continuing to monitor movements at the slopes of the Gongo Soco pit. The pit is located in the Barão de Cocais area and has ceased production in 2016. VALE uses radar and automatic monitoring equipment to monitor mines and dams for 24 hours.

Vale will continue to monitor and evaluate the likelihood and extent of this potential rupture risk, as well as the Sul Superior tail, approximately 1.5 km from the slope area (the slope is a stair-like structure where the iron ore is removed). The impact of the dam, which was identified as the highest alert level on March 22, 2019, means that there is a risk of impending rupture. Since March 22, 2019, the Sul Superior mine has been in a Level 3 (highest) emergency.

Vale has completed the construction of the tailings enclosure structure at a distance of 6 kilometers from the Sul Superior pit. This structural project follows international technical standards and is designed to accommodate all the water in the pit under extreme conditions assuming rupture to avoid impact on other mining areas downstream Make an impact.

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