The Objective Is To Reduce Or Even Avoid Accidents Similar To Those Involving The Mining Giants Vale And Samarco In The Past
The National Mining Agency (ANM) announced that it would hold a public hearing on the new guidelines to strengthen the rules for safety and inspection of mining dams, mainly in the way companies manage tailings.
According to the agency, the suggestions obtained during the process, which is expected to last 45 days, will be used to outline the new standards.
Scrutiny around the safety of tailings dams has dramatically increased in the past two years, following the collapse of the dam at Brumadinho, Vale (NYSE: VALE) , which killed 270 people. It also triggered a global investigation into the status of 726 tailings dams.
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Bothered by millions of bricks discarded every year in Norway, a company cuts old pieces into thin slices, secures them with a metal system, and transforms demolition into a new 1,800 m² facade.
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Taiwan erects a 4 km maritime wall in the Port of Taipei, installs concrete coffers against waves up to 7 meters, and transforms dredged sediments into new land to expand one of the island’s most strategic ports.
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While cigarette butts appear on sidewalks, beaches, and sewers, researchers tested the waste in clay bricks and calculated a 10% savings in burning with just 1% in the mixture.
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Common land turns into 4 compact townhouses with two parking spaces, suites, skylights, and free space at the back for expansion, a solution that tries to tackle the high price of lots and keep affordable housing in the Minha Casa Minha Vida program outside expensive gated communities in Blumenau.
A similar accident in 2015 affected an iron ore mine operated by Samarco, a joint venture between BHP and Vale. The rupture of the Fundão dam became the worst environmental disaster in Brazil’s history.
Upstream dams were banned in February 2019 and companies were given deadlines to deactivate dozens of similar structures in the country. Initially, the ANM set 2021 as the deadline for companies to dismantle the dams.
In August 2019, the regulatory agency extended the deadline by nearly six years, to 2022, 2025, and 2027, depending on the size of the structure.
Vale, the world’s largest iron ore producer, is still facing legal action over the deadly accident, including allegations that the miner was aware of the unstable condition of the dam years before the accident occurred.
Global Efforts In The Mining Industry
After the accident, the International Council on Mining and Metals (ICMM), an industry group based in London that represents 27 large mining companies, formed an independent panel of experts to develop global standards for tailings facilities.
The Church of England, which invests in mining companies through its pensions for retired clergy, along with its partners, launched a global inquiry in April 2019 into the waste storage systems of over 700 resource companies.
It now calls on companies to regularly disclose data about tailings dams.
The Responsible Mining Foundation (RMF), based in Switzerland, published a study in early April of this year showing that investor-led action resulted in greater transparency regarding the status of these facilities.
However, the vast majority of mining companies still need to demonstrate that they are reviewing how they effectively manage risks related to tailings.

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