► Read more at https://on.ft.com/2G6boqT<br /><br />A dam accident that has claimed the lives of at least 58 people is a huge blow to Brazil’s Vale, the world’s biggest producer of iron ore.<br /><br />► Subscribe to FT.com here: http://bit.ly/2GakujT<br /><br />► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
