Entrance to ex-military complex where Croatia will build radioactive waste storage near Dvor, Croatia, May 24, 2022. Picture is taken May 24, 2022. Sign reads "do not approach, there is a great danger of mines in this area". REUTERS/Antonio Bronic 

Members of South Africa's National Union of Mineworkers (NUM) and the Association of Mineworkers and Construction Union (AMCU), whose members have been on strike at Sibanye-Stillwater's gold operations since March 9, chant slogans outside the government Union Buildings in Pretoria, South Africa, May 23, 2022. REUTERS/Siphiwe Sibeko 

Members of South Africa's National Union of Mineworkers (NUM) and the Association of Mineworkers and Construction Union (AMCU), whose members have been on strike at Sibanye-Stillwater's gold operations since March 9, chant slogans outside the government Union Buildings in Pretoria, South Africa, May 23, 2022. REUTERS/Siphiwe Sibeko 

Members of South Africa's National Union of Mineworkers (NUM) and the Association of Mineworkers and Construction Union (AMCU), whose members have been on strike at Sibanye-Stillwater's gold operations since March 9, gather outside the government Union Buildings in Pretoria, South Africa, May 23, 2022. REUTERS/Siphiwe Sibeko 

Members of South Africa's National Union of Mineworkers (NUM) and the Association of Mineworkers and Construction Union (AMCU), whose members have been on strike at Sibanye-Stillwater's gold operations since March 9, chant slogans outside the government Union Buildings in Pretoria, South Africa, May 23, 2022. REUTERS/Siphiwe Sibeko 

Members of South Africa's National Union of Mineworkers (NUM) and the Association of Mineworkers and Construction Union (AMCU), whose members have been on strike at Sibanye-Stillwater's gold operations since March 9, hold placards as they chant slogans outside the government Union Buildings in Pretoria, South Africa, May 23, 2022. REUTERS/Siphiwe Sibeko 

The Slana river polluted by water containing high levels of iron from an iron ore mine flows near Betliar, Slovakia May 18, 2022. Picture taken May 18, 2022. REUTERS/Marton Monus REFILE - CORRECTING CONTAMINANT 

Tibor Varga, a local angler and activist, shows dead crayfish from the Slana river polluted by water containing high levels of iron from an iron ore mine near Betliar, Slovakia May 18, 2022. Picture taken May 18, 2022. REUTERS/Marton Monus REFILE - CORRECTING CONTAMINANT 

Tibor Varga, a local angler and activist, sits next to the Slana river polluted by water containing high levels of iron from an iron ore mine near Betliar, Slovakia May 18, 2022. Picture taken May 18, 2022. REUTERS/Marton Monus REFILE - CORRECTING CONTAMINANT 

Tibor Varga, a local angler and activist, searches for live animals in the Slana river polluted by water containing high levels of iron from an iron ore mine near Nizna Slana, Slovakia May 18, 2022. Picture taken May 18, 2022. REUTERS/Marton Monus REFILE - CORRECTING CONTAMINANT 

The Slana river polluted by water containing high levels of iron from an iron ore mine flows near Nizna Slana, Slovakia May 18, 2022. Picture taken with a drone on May 18, 2022. REUTERS/Marton Monus REFILE - CORRECTING CONTAMINANT 

The polluted mining water containing high levels of iron from an iron ore mine flows into the river Slana near Nizna Slana, Slovakia May 18, 2022. Picture taken with a drone on May 18, 2022. REUTERS/Marton Monus REFILE - CORRECTING CONTAMINANT 

The Slana river polluted by water containing high levels of iron from an iron ore mine flows near Gombasek, Slovakia May 18, 2022. Picture taken May 18, 2022. REUTERS/Marton Monus REFILE - CORRECTING CONTAMINANT 

The Slana river (R), polluted by water containing high levels of iron from an iron ore mine, meets the river Rima flowing from the left near Lenartovce, Slovakia May 18, 2022. Picture taken with a drone on May 18, 2022. REUTERS/Marton Monus REFILE - CORRECTING CONTAMINANT 

The Slana river polluted by water containing high levels of iron from an iron ore mine flows near Nizna Slana, Slovakia May 18, 2022. Picture taken with a drone on May 18, 2022. REUTERS/Marton Monus REFILE - CORRECTING CONTAMINANT 

The Slana river polluted by water containing high levels of iron from an iron ore mine flows near Gombasek, Slovakia May 18, 2022. Picture taken May 18, 2022. REUTERS/Marton Monus REFILE - CORRECTING CONTAMINANT 

The bankrupt, abandoned Siderit iron ore mine, from which the polluted mining water containing high levels of iron flows into the river Slana, is pictured near Nizna Slana, Slovakia May 18, 2022. Picture taken with a drone on May 18, 2022. REUTERS/Marton Monus REFILE - CORRECTING CONTAMINANT 

The polluted mining water containing high levels of iron from an iron ore mine flows into the river Slana near Nizna Slana, Slovakia May 18, 2022. Picture taken May 18, 2022. REUTERS/Marton Monus REFILE - CORRECTING CONTAMINANT 

The polluted mining water containing high levels of iron from an iron ore mine flows into the river Slana near Nizna Slana, Slovakia May 18, 2022. Picture taken May 18, 2022. REUTERS/Marton Monus REFILE - CORRECTING CONTAMINANT 

A banner reads "Danger, Mines!" outside a damaged building in Saltivka district, amid Russia's attack on Ukraine, in Kharkiv, Ukraine, May 17, 2022. REUTERS/Ricardo Moraes 

A woman casts her vote at the former coal mine 'Zeche Carl' during the North-Rhine Westphalia (NRW) federal state election, in Essen, Germany May 15, 2022. REUTERS/Thilo Schmuelgen 

People cast their votes at the former coal mine 'Zeche Carl' during the North-Rhine Westphalia (NRW) federal state election, in Essen, Germany May 15, 2022. REUTERS/Thilo Schmuelgen 

A woman prepares her ballot at the former coal mine 'Zeche Carl' during the North-Rhine Westphalia (NRW) federal state election, in Essen, Germany May 15, 2022. REUTERS/Thilo Schmuelgen 

A view shows one of the galleries during a rescue operation inside Perkoa mine where water is still being pumped out, four weeks after a flood trapped eight miners inside the galleries, in Perkoa, Burkina Faso, May 13, 2022. REUTERS/Anne Mimault 

Hein Frey, Vice President of Operations at Trevali Mining Corporation which owns the Perkoa mine, looks on during a rescue operation at Perkoa mine where water is still being pumped out, four weeks after a flood trapped eight miners inside the galleries, in Perkoa, Burkina Faso, May 13, 2022. REUTERS/Anne Mimault 

Hein Frey, Vice President of Operations at Trevali Mining Corporation which owns the Perkoa mine, looks on during a rescue operation inside Perkoa mine where water is still being pumped out, four weeks after a flood trapped eight miners inside the galleries, in Perkoa, Burkina Faso, May 13, 2022. REUTERS/Anne Mimault 

A man works during a rescue operation inside Perkoa mine where water is still being pumped out, four weeks after a flood trapped eight miners inside the galleries, in Perkoa, Burkina Faso, May 13, 2022. REUTERS/Anne Mimault 

A view shows one of the galleries during a rescue operation inside Perkoa mine where water is still being pumped out, four weeks after a flood trapped eight miners inside the galleries, in Perkoa, Burkina Faso, May 13, 2022. REUTERS/Anne Mimault 

Men work during a rescue operation inside Perkoa mine where water is still being pumped out, four weeks after a flood trapped eight miners inside the galleries, in Perkoa, Burkina Faso, May 13, 2022. REUTERS / Anne Mimault 

Men work during a rescue operation inside Perkoa mine where water is still being pumped out, four weeks after a flood trapped eight miners inside the galleries, in Perkoa, Burkina Faso, May 13, 2022. REUTERS/Anne Mimault 

Men work during a rescue operation inside Perkoa mine where water is still being pumped out, four weeks after a flood trapped eight miners inside, in Perkoa, Burkina Faso, May 13, 2022. REUTERS/Anne Mimault 

Brazil's new Mines and Energy Minister Adolfo Sachsida arrives for a news statement at the headquarters of the Ministry of Mines and Energy, in Brasilia, Brazil May 11, 2022.REUTERS/Adriano Machado 

Brazil's new Mines and Energy Minister Adolfo Sachsida speaks during a news statement at the headquarters of the Ministry of Mines and Energy, in Brasilia, Brazil May 11, 2022. REUTERS/Adriano Machado 

Brazil's new Mines and Energy Minister Adolfo Sachsida speaks during a news statement at the headquarters of the Ministry of Mines and Energy, in Brasilia, Brazil May 11, 2022. REUTERS/Adriano Machado 

Brazil's new Mines and Energy Minister Adolfo Sachsida speaks during a news statement at the headquarters of the Ministry of Mines and Energy, in Brasilia, Brazil May 11, 2022. REUTERS/Adriano Machado 

Brazil's new Mines and Energy Minister Adolfo Sachsida speaks during a news statement at the headquarters of the Ministry of Mines and Energy, in Brasilia, Brazil May 11, 2022. REUTERS/Adriano Machado 

Brazil's new Mines and Energy Minister Adolfo Sachsida arrives for a news statement at the headquarters of the Ministry of Mines and Energy, in Brasilia, Brazil May 11, 2022. REUTERS/Adriano Machado 

Brazil's new Mines and Energy Minister Adolfo Sachsida speaks during a news statement at the headquarters of the Ministry of Mines and Energy, in Brasilia, Brazil May 11, 2022. REUTERS/Adriano Machado 

Brazil's new Mines and Energy Minister Adolfo Sachsida speaks during a news statement at the headquarters of the Ministry of Mines and Energy, in Brasilia, Brazil May 11, 2022. REUTERS/Adriano Machado 

Adam Rolfe, Business Development Manager for De Beers Group speaks during a panel discussion at the African Mining Indaba 2022 conference in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Dr. Nombasa Tsengwa, CEO-Designate of Exxaro Resources speaks during the panel discussion at the African Mining Indaba 2022 conference in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Mark Bristow, CEO of Barrick Gold ​Co. looks on during an interview with Reuters at the African Mining Indaba 2022 conference, in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Adam Rolfe, Business Development Manager for De Beers Group speaks as he sits next to Ege Tekinbas, Senior Policy Advisor on Gender Equality IISD & IGF, during the panel discussion at the African Mining Indaba 2022 conference in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Dr. Nombasa Tsengwa CEO-Designate Exxaro Resources speaks during the panel discussion at the African Mining Indaba 2022 conference in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Mark Bristow, CEO of Barrick Gold ​Co. speaks during an interview with Reuters at the African Mining Indaba 2022 conference, in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Mark Bristow, CEO of Barrick Gold ​Co. speaks during an interview with Reuters at the African Mining Indaba 2022 conference, in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Nikisi Lesufi, Senior Executive of Environment, Health and Legacies Minerals Council of South Africa and Mosa Mabuza, CEO of The Council for Geoscience attend a panel at the African Mining Indaba 2022 conference, in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Mosa Mabuza, CEO of The Council for Geoscience speaks during a panel at the African Mining Indaba 2022 conference, in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Mark Bristow, CEO of Barrick Gold ​Co. speaks during an interview with Reuters at the African Mining Indaba 2022 conference, in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Robert Friedland, founder and co-chair of Ivanhoe Mines, addresses the delegates? at ?the African Mining Indaba 2022 conference in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Robert Friedland, founder and co-chair of Ivanhoe Mines, addresses the delegates? at ?the African Mining Indaba 2022 conference in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Robert Friedland, founder and co-chair of Ivanhoe Mines, addresses the delegates​ at ​the African Mining Indaba 2022 conference in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Ege Tekinbas, Senior Policy Advisor on Gender Equality IISD & IGF, speaks during the panel discussion at the African Mining Indaba 2022 conference in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Ege Tekinbas, Senior Policy Advisor on Gender Equality IISD & IGF, speaks during the panel discussion at the African Mining Indaba 2022 conference in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

James Nicholson, Head of Corporate Responsibility/Trafigura, speaks during the panel discussion at the African Mining Indaba 2022 conference in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

James Nicholson, Head of Corporate Responsibility/Trafigura, speaks during the panel discussion at the African Mining Indaba 2022 conference in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Robert Friedland, founder and co-chair of Ivanhoe Mines, addresses the delegates? at ?the African Mining Indaba 2022 conference in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Mark Bristow, CEO of Barrick Gold ​Co. speaks at the DRC Breakfast Indaba, part of the African Mining Indaba 2022 conference, in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Panel members take part in a discussion during the African Mining Indaba 2022 conference, in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians 

Mark Bristow, CEO of Barrick Gold ​Co. speaks at the DRC Breakfast Indaba, part of the African Mining Indaba 2022 conference, in Cape Town, South Africa, May 11, 2022. REUTERS/Shelley Christians