Vale ESG Presentation Deck
Good performance of geotechnical assets during the heavy
rains in Minas Gerais¹
Challenge
+750mm rains recorded in January
650mm in just 12 days
Around 300mm in 2 days
■
Performance
No significant issue identified in any given Tailings Facility
The rainy preparation plans, developed and implemented in
advance, worked very well as an important tool to prevent
and minimize risks associated to the heavy rains
Good level of preparedness from ops and corporate teams,
reflecting tailings management improvements
Continuous improvement: learnings and points of
improvement to be incorporated in the next plans
¹ In January 2022.
Points of attention
related to erosion in
access, small slope
failures, natural slopes,
backup dams with
water retention
Trigger response plans and alerts system
E
Geotechnical
Monitoring
Center
ooo
▪ Real time piezometers monitoring
I
Video analytics with artificial intelligence
H
Geophones to measure TSFs response to seismic
Radars ensure fast response and precision
Satellite, drone imagery and sound alarms
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