A view of an open pit mine at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 14, 2023. REUTERS/B. Rentsendorj 

A view of an open pit mine at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 14, 2023. REUTERS/B. Rentsendorj 

A view of an open pit mine at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 14, 2023. REUTERS/B. Rentsendorj 

A view of an open pit mine at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 14, 2023. REUTERS/B. Rentsendorj 

A view of an open pit mine at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 14, 2023. REUTERS/B. Rentsendorj 

A view of an open pit mine at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 14, 2023. REUTERS/B. Rentsendorj 

Rio Tinto Copper's Chief Executive Bold Baatar stands near the entrance of a museum at the Oyu Tolgoi copper mine in the southern Gobi desert, Mongolia March 14, 2023. REUTERS/B. Rentsendorj 

Rio Tinto Copper's Chief Executive Bold Baatar speaks to Reuters on a bus in the southern Gobi desert, Mongolia March 14, 2023. REUTERS/B. Rentsendorj 

A staff member stands at an underground mine before a commencement ceremony for its production, at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

A Rio Tinto logo is seen on a helmet in an office at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

People stand in an elevator following a visit to an underground mine, at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

Ore samples are seen at an office of Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

A view of processing facilities at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

Mongolian Prime Minister Luvsannamsrain Oyun-Erdene and Rio Tinto Chief Executive Jakob Stausholm attend a commencement ceremony for the underground production at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

Mongolian Prime Minister Luvsannamsrain Oyun-Erdene and Rio Tinto Chief Executive Jakob Stausholm attend a commencement ceremony for the underground production at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

Mongolian Prime Minister Luvsannamsrain Oyun-Erdene speaks at a commencement ceremony for the underground production at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

Mongolian Prime Minister Luvsannamsrain Oyun-Erdene attends a commencement ceremony for the underground production at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

Mongolian Prime Minister Luvsannamsrain Oyun-Erdene speaks at a commencement ceremony for the underground production at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

Rio Tinto Chief Executive Jakob Stausholm speaks at a commencement ceremony for the underground production at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

People visit an underground mine before a commencement ceremony for its production, at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

People visit an underground mine before a commencement ceremony for its production, at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

Employees leave after work at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

People visit an underground mine before a commencement ceremony for its production, at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

Employees package copper concentrate at a processing facility at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

A worker stands at a processing facility at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

Employees package copper concentrate at a processing facility at Oyu Tolgoi copper mine in the Gobi Desert, Mongolia March 13, 2023. REUTERS/B. Rentsendorj 

A stack of 500 Canadian gold coins, worth $1 million USD according to Sprott Money, is displayed at their booth at the Prospectors and Developers Association of Canada (PDAC) annual conference in Toronto, Ontario, Canada March 7, 2023. REUTERS/Chris Helgren 

A man looks at an Arabic coffee pot made of copper in a shop in Mosul al-Safafeer Souq bazaar, Iraq, February 11, 2023. REUTERS/Khalid al-Mousily 

A vendor works on a copper item to be sold in a shop in Mosul al-Safafeer Souq bazaar, Iraq, February 11, 2023. REUTERS/Khalid al-Mousily 

A vendor works on a copper item to be sold in a shop in Mosul al-Safafeer Souq bazaar, Iraq, February 11, 2023. REUTERS/Khalid al-Mousily 

A vendor works on a copper item to be sold in a shop in Mosul al-Safafeer Souq bazaar, Iraq, February 11, 2023. REUTERS/Khalid al-Mousily 

An environmental activist holds a sign reading 'Not to Dominga' before Chile's committee of ministers denied permits for Andes Iron?s Dominga copper and iron mining project, in Santiago, Chile, January 18, 2023. REUTERS/Ivan Alvarado 

An environmental activist shouts slogans before Chile's committee of ministers denied permits for Andes Iron?s Dominga copper and iron mining project, in Santiago, Chile, January 18, 2023. REUTERS/Ivan Alvarado 

An environmental activist uses a conch shell before Chile's committee of ministers denied permits for Andes Iron?s Dominga copper and iron mining project, in Santiago, Chile, January 18, 2023. The banner reads 'Not to Dominga'. REUTERS/Ivan Alvarado 

An environmental activist walks past riot police before Chile's committee of ministers denied permits for Andes Iron?s Dominga copper and iron mining project, in Santiago, Chile, January 18, 2023. REUTERS/Ivan Alvarado 

An environmental activist holds a sign reading 'Not to Dominga' before Chile's committee of ministers denied permits for Andes Iron?s Dominga copper and iron mining project, in Santiago, Chile, January 18, 2023. REUTERS/Ivan Alvarado 

Environmental activists shout slogans before Chile's committee of ministers denied permits for Andes Iron?s Dominga copper and iron mining project, in Santiago, Chile, January 18, 2023. The sign reads 'Not to Dominga'. REUTERS/Ivan Alvarado 

An environmental activist holds a sign reading 'Not to Dominga' before Chile's committee of ministers denied permits for Andes Iron?s Dominga copper and iron mining project, in Santiago, Chile, January 18, 2023. REUTERS/Ivan Alvarado 

Environmental activists react after Chile's committee of ministers denied permits for Andes Iron?s Dominga copper and iron mining project, in Santiago, Chile, January 18, 2023. REUTERS/Ivan Alvarado 

An environmental activist shouts slogans before Chile's committee of ministers denied permits for Andes Iron?s Dominga copper and iron mining project, in Santiago, Chile, January 18, 2023. REUTERS/Ivan Alvarado 

Environmental activists react after Chile's committee of ministers denied permits for Andes Iron?s Dominga copper and iron mining project, in Santiago, Chile, January 18, 2023. REUTERS/Ivan Alvarado 

Environmental activists react after Chile's committee of ministers denied permits for Andes Iron?s Dominga copper and iron mining project, in Santiago, Chile, January 18, 2023. REUTERS/Ivan Alvarado 

An environmental activist holds a sign reading ' Not to Dominga' before Chile's committee of ministers denied permits for Andes Iron?s Dominga copper and iron mining project, in Santiago, Chile, January 18, 2023. REUTERS/Ivan Alvarado 

Environmental activists react after Chile's committee of ministers denied permits for Andes Iron?s Dominga copper and iron mining project, in Santiago, Chile, January 18, 2023. The sign reads 'Let's save Los Choros, Not to Dominga'. REUTERS/Ivan Alvarado 

Environmental activists react after Chile's committee of ministers denied permits for Andes Iron?s Dominga copper and iron mining project, in Santiago, Chile, January 18, 2023. REUTERS/Ivan Alvarado 

Environmental activists react after Chile's committee of ministers denied permits for Andes Iron?s Dominga copper and iron mining project, in Santiago, Chile, January 18, 2023. REUTERS/Ivan Alvarado 

A man works at his shop where he sells traditional handmade copper wares in Baghdad's al-Safafeer Souq, Iraq, January 17, 2023. REUTERS/Ahmed Saad 

A vendor works on a copper item to be sold in a shop in Baghdad's al-Safafeer Souq bazaar, Iraq, January 17, 2023. REUTERS/Ahmed Saad 

A vendor works on a copper item to be sold in a shop in Baghdad's al-Safafeer Souq bazaar, Iraq, January 17, 2023. REUTERS/Ahmed Saad 

A vendor works on a copper item to be sold in a shop in Baghdad's al-Safafeer Souq bazaar, Iraq, January 17, 2023. REUTERS/Ahmed Saad 

A LHD electric loader is charged inside the Codelco El Teniente copper mine, the world's largest underground copper mine, near Rancagua, Chile, November 16, 2022. REUTERS/Natalia Ramos 

A LHD electric loader starts to operate inside the Codelco El Teniente copper mine, the world's largest underground copper mine, near Rancagua, Chile, November 16, 2022. REUTERS/Natalia Ramos 

Workers and media members stand inside the Codelco El Teniente copper mine, the world's largest underground copper mine, as a LHD electric loader starts to operate, near Rancagua, Chile, November 16, 2022. REUTERS/Natalia Ramos 

Journalists stand in front of a tank container, carrying low carbon ammonia, of the German-based copper company Aurubis, in the harbor in Hamburg, Germany October 21, 2022. REUTERS/Fabian Bimmer 

A security guard stands in front of a tank container of the German-based copper company Aurubis ahead of an official ceremony to mark the first arrival of an ammonia delivery from the Abu Dhabi National Oil Company in the harbor in Hamburg, Germany October 21, 2022. REUTERS/Fabian Bimmer 

A view of a tank container of the German-based copper company Aurubis ahead of an official ceremony to mark the first arrival of an ammonia delivery from the Abu Dhabi National Oil Company in the harbor in Hamburg, Germany October 21, 2022. REUTERS/Fabian Bimmer 

Artisan miners work in an area where other hundreds of artisan miners have found a rich seam of copper in the hills of Tapairihua in Peru's Andes, October 18, 2022. REUTERS/Marco Aquino 

An artisan miner walks into an area where hundreds of artisan miners have found a rich seam of copper in the hills of Tapairihua in Peru's Andes, October 18, 2022. REUTERS/Marco Aquino 

Artisan miners stand in an area where hundreds of artisan miners have found a rich seam of copper, in the hills of Tapairihua in Peru's Andes, October 18, 2022. REUTERS/Marco Aquino 

A view shows cars burned by unknown persons and that belong to Grupo Mexico's Southern Copper near an area where hundreds of artisan miners have found a rich seam of copper in the hills of Tapairihua in Peru's Andes, October 18, 2022. REUTERS/Marco Aquino