A demonstrator wearing a face mask and a metal tin on his head protests against Chile's government in Santiago, Chile November 8, 2019. REUTERS/Pablo Sanhueza

A damaged model human skeleton is seen in the aftermath of Hurricane Dorian on the Great Abaco island town of Marsh Harbour, Bahamas, September 3, 2019. Picture taken September 3, 2019. REUTERS/Dante Carrer

A tin container is seen at the bottom of the sea off the island of Thasos, Greece, August 29, 2018. Picture taken August 29, 2018. REUTERS/Stelios Misinas

A locked gate of a weaving factory, that was shut a year ago, is seen in Panipat in the northern state of Haryana, India, August 29, 2018. REUTERS/Adnan Abidi SEARCH "ABIDI TAX" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

The wreckage of a small helicopter that crashed into an industrial hall is seen on the crash site in Plzen, Czech Republic, September 5, 2018. REUTERS/David W Cerny

A damaged roof is seen on the site where a small helicopter crashed into an industrial hall in Plzen, Czech Republic, September 5, 2018. REUTERS/David W Cerny

The silence blanketing the Greek plain is broken by the tinkle of a cowbell and the rumble of a blazing furnace. In one of Greece's last remaining bell foundries in the small, western town of Paramythia, the Galanopoulos brothers are busy casting church bells heading to Ethiopia and Romania, pouring red-hot molten metal into moulds of varying sizes. Their family-run business has been around for 215 years. These days, exports keep it alive. "More than half of our production goes abroad," said Thomas Galanopoulos, 59, the elder of the two, wreathed in smoke rising from melting copper and tin. At its peak, the foundry was producing 120 tonnes of bells a year for steeples across Greece, he said. Now, it's down to 50 tonnes and their main customers are churches in the Balkans and Africa, while they also ship to Israel, Lebanon and Australia. REUTERS/Alkis Konstantinidis SEARCH "ALKIS BELLS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. Matching text: GREECE-BELLS/

A dog sits in front of a stall closed during a national strike at the Oriental Market, considered one of Central America's largest markets, in Managua, Nicaragua July 13, 2018. REUTERS/Oswaldo Rivas

A volunteer inspects a house damaged an area affected by the eruption of the Fuego volcano at San Miguel Los Lotes in Escuintla, Guatemala June 10, 2018. REUTERS/Carlos Jasso

Cans of Cisk Lager are seen on a conveyor belt at the beer packaging facility at Farsons Brewery in Mriehel, Malta June 4, 2018. Picture taken June 4, 2018. REUTERS/Darrin Zammit Lupi

A boy looks through a hole in the current U.S.-Mexico border fence, in this picture taken from the Mexican side of the border in Tijuana, Mexico March 12, 2018. REUTERS/Edgard Garrido TPX IMAGES OF THE DAY

The border fence between the U.S. and Mexico is seen in this picture taken from the Mexican side of the border in Tijuana, Mexico, January 27, 2018. REUTERS/Jorge Duenes TPX IMAGES OF THE DAY

A woman bangs the gates of a supermarket as she waits to buy food in Caracas, Venezuela January 6, 2018. REUTERS/Marco Bello

A Rohingya refugee works to build a window in a newly built shelter made of corrugated metal by the Rohingya refugees in Kathmandu, Nepal September 11, 2017. There are about 300 Rohingya refugees living in Nepal since 2012 in two tin roofed camps on the outskirts of Kathmandu. Many of them say they want to go back to their homes if there was security, peace and a guarantee for equal treatment. REUTERS/Navesh Chitrakar

A Rohingya refugee boy carrying a Koran runs along the shelters made of corrugated metal in Kathmandu, Nepal September 11, 2017. There are about 300 Rohingya refugees living in Nepal since 2012 in two tin roofed camps on the outskirts of Kathmandu. Many of them say they want to go back to their homes if there was security, peace and a guarantee for equal treatment. REUTERS/Navesh Chitrakar

Newly built shelters made of corrugated metal by the Rohingya refugees are pictured in Kathmandu, Nepal September 11, 2017. There are about 300 Rohingya refugees living in Nepal since 2012 in two tin roofed camps on the outskirts of Kathmandu. Many of them say they want to go back to their homes if there was security, peace and a guarantee for equal treatment. REUTERS/Navesh Chitrakar

A Rohingya refugee boy stands among the shelters made of corrugated metal in Kathmandu, Nepal September 11, 2017. There are about 300 Rohingya refugees living in Nepal since 2012 in two tin roofed camps on the outskirts of Kathmandu. Many of them say they want to go back to their homes if there was security, peace and a guarantee for equal treatment. REUTERS/Navesh Chitrakar

A Rohingya refugee hangs washed clothes along the shelters made of corrugated metal in Kathmandu, Nepal September 11, 2017. There are about 300 Rohingya refugees living in Nepal since 2012 in two tin roofed camps on the outskirts of Kathmandu. Many of them say they want to go back to their homes if there was security, peace and a guarantee for equal treatment. REUTERS/Navesh Chitrakar

Flip-flops belonging to the children of Rohingya refugees are left outside a classroom made of corrugated metal in Kathmandu, Nepal September 11, 2017. There are about 300 Rohingya refugees living in Nepal since 2012 in two tin roofed camps on the outskirts of Kathmandu. Many of them say they want to go back to their homes if there was security, peace and a guarantee for equal treatment. REUTERS/Navesh Chitrakar

A Rohingya refugee holding his sister's hand walks along the shelters made of corrugated metal in Kathmandu, Nepal September 11, 2017. There are about 300 Rohingya refugees living in Nepal since 2012 in two tin roofed camps on the outskirts of Kathmandu. Many of them say they want to go back to their homes if there was security, peace and a guarantee for equal treatment. REUTERS/Navesh Chitrakar TPX IMAGES OF THE DAY

A Rohingya refugee works to build a window of a newly build shelter made of corrugated metal by the Rohingya refugees in Kathmandu, Nepal September 11, 2017. There are about 300 Rohingya refugees living in Nepal since 2012 in two tin roofed camps on the outskirts of Kathmandu. Many of them say they want to go back to their homes if there was security, peace and a guarantee for equal treatment. REUTERS/Navesh Chitrakar

A Rohingya refugee boy enters a classroom made of corrugated metal in Kathmandu, Nepal September 11, 2017. There are about 300 Rohingya refugees living in Nepal since 2012 in two tin roofed camps on the outskirts of Kathmandu. Many of them say they want to go back to their homes if there was security, peace and a guarantee for equal treatment. REUTERS/Navesh Chitrakar TPX IMAGES OF THE DAY

Children of Rohingya refugees read the Koran inside a classroom made of corrugated metal in Kathmandu, Nepal September 11, 2017. There are about 300 Rohingya refugees living in Nepal since 2012 in two tin roofed camps on the outskirts of Kathmandu. Many of them say they want to go back to their homes if there was security, peace and a guarantee for equal treatment. REUTERS/Navesh Chitrakar

Children of Rohingya refugees attend a class made of corrugated metal in Kathmandu, Nepal September 11, 2017. There are about 300 Rohingya refugees living in Nepal since 2012 in two tin roofed camps on the outskirts of Kathmandu. Many of them say they want to go back to their homes if there was security, peace and a guarantee for equal treatment. REUTERS/Navesh Chitrakar

A Rohingya refugee eats food as he sits next to his son inside their shelter made of corrugated metal in Kathmandu, Nepal September 11, 2017. There are about 300 Rohingya refugees living in Nepal since 2012 in two tin roofed camps on the outskirts of Kathmandu. Many of them say they want to go back to their homes if there was security, peace and a guarantee for equal treatment. REUTERS/Navesh Chitrakar

Children of Rohingya refugees read the Koran inside a classroom made of corrugated metal in Kathmandu, Nepal September 11, 2017. There are about 300 Rohingya refugees living in Nepal since 2012 in two tin roofed camps on the outskirts of Kathmandu. Many of them say they want to go back to their homes if there was security, peace and a guarantee for equal treatment. REUTERS/Navesh Chitrakar

Tins are seen in a public container for metal recycling in Zurich, Switzerland August 14, 2017. REUTERS/Arnd Wiegmann

A burnt car is seen next to a section of the wall separating Mexico and the United States, in Tijuana, Mexico, October 6, 2016. REUTERS/Edgard Garrido TPX IMAGES OF THE DAY

A Chinese worker collects tin plates at a plant on the outskirts of Shanghai November 20, 2003. REUTERS/Claro Cortes/File Photo

Chinese workers unload a roll of tin plate at a plant on the outskirts of Shanghai November 20, 2003. REUTERS/Claro Cortes/File Photo

Workers clean used cooking oil tins in a recycling workshop in Mumbai, India, April 7, 2016. REUTERS/Shailesh Andrade TPX IMAGES OF THE DAY

Bolivian engineers are seen inside the tin smelter building in Vinto near Oruro, September 18, 2015. Bolivian state metallurgical company Vinto on Friday inaugurated the Ausmelt tin smelter building, which was built by Outotec Group for Vinto, local media reported. Picture taken September 18, 2015. REUTERS/David Mercado

A view of the Ausmelt tin smelter building is seen in Vinto, near Oruro, September 18, 2015. Bolivian state metallurgical company Vinto on Friday inaugurated the Ausmelt tin smelter building, which was built by Outotec Group for Vinto, local media reported. Picture taken September 18, 2015. REUTERS/David Mercado

A part of the structure at the newly inaugurated Ausmelt tin smelter building is pictured in Vinto near Oruro, September 18, 2015. Bolivian state metallurgical company Vinto on Friday inaugurated the Ausmelt tin smelter building, which was built by Outotec Group for Vinto, local media reported. Picture taken September 18, 2015. REUTERS/David Mercado

An entrance of the Ausmelt tin smelter is pictured in Vinto, near Oruro, September 18, 2015. Bolivian state metallurgical company Vinto on Friday inaugurated the Ausmelt tin smelter building, which was built by Outotec Group for Vinto, local media reported. Picture taken September 18, 2015. REUTERS/David Mercado

A worker stands next to tin ingots at the newly inaugurated Ausmelt tin smelter building in the town of Vinto, near Oruro, September 18, 2015. Bolivian state metallurgical company Vinto on Friday inaugurated the Ausmelt tin smelter building, which was built by Outotec Group for Vinto. Picture taken September 18, 2015. REUTERS/David Mercado

A view of tin ingots at the newly inaugurated Ausmelt tin smelter building in the town of Vinto, near Oruro, September 18, 2015. Bolivian state metallurgical company Vinto on Friday inaugurated the Ausmelt tin smelter building, which was built by Outotec Group for Vinto. Picture taken September 18, 2015. REUTERS/David Mercado

Workers are seen at the newly inaugurated Ausmelt tin smelter building in the town of Vinto, near Oruro, September 18, 2015. Bolivian state metallurgical company Vinto on Friday inaugurated the Ausmelt tin smelter building, which was built by Outotec Group for Vinto. Picture taken September 18, 2015. REUTERS/David Mercado

A worker is pictured at the newly inaugurated Ausmelt tin smelter building in the town of Vinto, near Oruro, September 18, 2015. Bolivian state metallurgical company Vinto on Friday inaugurated the Ausmelt tin smelter building, which was built by Outotec Group for Vinto. Picture taken September 18, 2015. REUTERS/David Mercado

Aluminium ingots are seen outside a warehouse that stores London Metal Exchange stocks in Port Klang Free Zone, outside Kuala Lumpur, March 23, 2015. Malaysia's customs agency hopes to reach an agreement soon with the London Metal Exchange, after the LME threatened to stop registering new metal in the country if the new Malaysian Goods and Services tax, due to take effect next month, was levied in two bonded zones there, a customs official said. Malaysia is a major storage point for LME metals, holding more than 430,000 tonnes, including nearly half of the LME's nickel stocks, 85 percent of its tin, a third of its lead and almost a fifth of its copper inventories. REUTERS/Olivia Harris

Aluminium ingots are seen outside a warehouse that stores London Metal Exchange stocks in Port Klang Free Zone, outside Kuala Lumpur, March 23, 2015. Malaysia's customs agency hopes to reach an agreement soon with the London Metal Exchange, after the LME threatened to stop registering new metal in the country if the new Malaysian Goods and Services tax, due to take effect next month, was levied in two bonded zones there, a customs official said. Malaysia is a major storage point for LME metals, holding more than 430,000 tonnes, including nearly half of the LME's nickel stocks, 85 percent of its tin, a third of its lead and almost a fifth of its copper inventories. REUTERS/Olivia Harris

A labourer takes down tin boxes inside a tin container recycling factory in a slum area in Mumbai January 12, 2015. India's industrial output recovered at a much faster-than-expected pace in November,
posting an annual growth of 3.8 percent year-on-year, helped by a rebound in capital goods sector, government data showed on
Monday. REUTERS/Danish Siddiqui (INDIA - Tags: SOCIETY BUSINESS INDUSTRIAL TPX IMAGES OF THE DAY)

Baskets, metal tin boxes and other objects are displayed on shelves in the Museum of Domenico Agostinelli in Dragona, near Rome November 4, 2014. Agostinelli, 74, has a passion that has led him over the past 60 years to pick up and collect things of all types, from antique art to everyday objects of the past and present. His collection includes a 65-million-year-old dinosaur egg, meteor fragments, a car that once belonged to American mob boss Al Capone, a lock of hair of Italian national hero Giuseppe Garibaldi, toys, weapons, musical instruments of all kinds and many more. REUTERS/Tony Gentile (ITALY - Tags: SOCIETY PROFILE)

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Illegal miners work in an open air pit tin mine on Bangka island September 24, 2013. Indonesia's bold attempt to challenge the London Metal Exchange (LME) for supremacy in the global tin market by imposing strict export rules and driving up prices looks to be paying off. Indonesia hopes the new rules will also deter illegal tin mining and set a blueprint for other commodities where the country is the world's biggest exporter, such as palm oil, thermal coal and nickel ore, industry and government sources said. Picture taken September 24, 2013. REUTERS/Michael Taylor (INDONESIA - Tags: ENVIRONMENT BUSINESS COMMODITIES)

Illegal miners work in an open air pit tin mine on Bangka island September 24, 2013. Indonesia's bold attempt to challenge the London Metal Exchange (LME) for supremacy in the global tin market by imposing strict export rules and driving up prices looks to be paying off. Indonesia hopes the new rules will also deter illegal tin mining and set a blueprint for other commodities where the country is the world's biggest exporter, such as palm oil, thermal coal and nickel ore, industry and government sources said. Picture taken September 24, 2013. REUTERS/Michael Taylor (INDONESIA - Tags: ENVIRONMENT BUSINESS COMMODITIES)

A group of illegal tin dredgers are operated by illegal miners on Bangka island September 24, 2013. Indonesia's bold attempt to challenge the London Metal Exchange (LME) for supremacy in the global tin market by imposing strict export rules and driving up prices looks to be paying off. Indonesia hopes the new rules will also deter illegal tin mining and set a blueprint for other commodities where the country is the world's biggest exporter, such as palm oil, thermal coal and nickel ore, industry and government sources said. Picture taken September 24, 2013. REUTERS/Michael Taylor (INDONESIA - Tags: BUSINESS COMMODITIES ENVIRONMENT)

A group of illegal tin miners process tin ore on Bangka island on September 24, 2013. Indonesia's bold attempt to challenge the London Metal Exchange (LME) for supremacy in the global tin market by imposing strict export rules and driving up prices looks to be paying off. Indonesia hopes the new rules will also deter illegal tin mining and set a blueprint for other commodities where the country is the world's biggest exporter, such as palm oil, thermal coal and nickel ore, industry and government sources said. Picture taken September 24, 2013. REUTERS/Michael Taylor (INDONESIA - Tags: ENVIRONMENT BUSINESS COMMODITIES)

Workers polish metal tiffin boxes at a workshop in an industrial area in Mumbai August 12, 2013. India's industrial production contracted 2.2 percent in June, more-than-expected from a year earlier, government data showed on Monday. REUTERS/Danish Siddiqui (INDIA - Tags: BUSINESS)

A miner works in the Kalimbi tin mine near the small town of Nyabibwe October 31, 2012. Eastern Congo has been mired in violence since the 1990s, as battles over ethnicity and resources saw neighbouring countries invade, armed groups spring up and the country's own army turning on the civilian population. A so-called "conflict-free tin initiative" seeking to revive the legal trade in minerals has been set up by UK based industry body ITRI, which is currently the only traceability programme operating in Rwanda, and Congo's more stable Katanga province. Now, with international backers including the U.S. and the Netherlands, a tagging project has been launched for the first time in the Kivus, the two Congolese provinces which have borne the brunt of the violence and have been the source of most of the region's conflict minerals. Picture taken October 31, 2012. To match story CONGO-DEMOCRATIC/MINING REUTERS/Jonny Hogg (DEMOCRATIC REPUBLIC OF CONGO - Tags: SOCIETY BUSINESS EMPLOYMENT ENVIRONMENT ENERGY)

Labourer Praveen, 42, carries empty tins to a recycling factory at a slum area in Mumbai July 30, 2012. Praveen said that he carries more than 30 tins at a time and earns around 3500 Indian rupees ($64) per month. REUTERS/Danish Siddiqui (INDIA - Tags: SOCIETY BUSINESS EMPLOYMENT)

A man cuts up a tin box inside a tin container recycling factory in a slum area in Mumbai July 6, 2012. REUTERS/Danish Siddiqui (INDIA - Tags: SOCIETY BUSINESS EMPLOYMENT)

A vendor carries traditional cooking stoves for sale on a street in the western Indian city of Ahmedabad January 13, 2012. REUTERS/Amit Dave (INDIA - Tags: SOCIETY)

A combination photo shows, (clockwise, from L-R) a worker counting ingots of tin at a PT Timah smelter in Mentok, Indonesia February 22, 2007; locals of the Qiang ethnic minority picking tea leaves at a tea plantation in Yaan, Sichuan Province April 11, 2010; a tipper truck parked above the main pit at a Rio Tinto iron ore mine at Tom Price, Australia, May 28, 2008; Bosnian miners working deep inside a coalmine near Breza December 5, 2008; a worker filling up a taxi's fuel tank at a gas station in Taipei April 23, 2008; a wheat crop ready for harvest on the Canadian prairies near Taber, Alberta, September 7, 2011; a worker displaying nickel ore in a ferronickel smelter owned by state miner Aneka Tambang Tbk, Sulawesi province March 30, 2011; a worker climbing on a pile of rice stock inside a warehouse of the government National Food Authority (NFA) in Bicutan, Manila September 28, 2010; one kilogram gold bars in a picture illustration taken at the Korea Gold Exchange in Seoul August 9, 2011. For the small club of companies who trade the food, fuels and metals that keep the world running, the last decade has been sensational. Driven by the rise of Brazil, China, India and other fast-growing economies, the global commodities boom has turbocharged profits at the world's biggest trading houses. To match Survey COMMODITIES-HOUSES REUTERS/Staff (AGRICULTURE BUSINESS COMMODITIES ENERGY FOOD)

A newly arrived Somali refugee man walks past a shop built from recycled tin sheets at the Ifo Extension refugee camp in Dadaab, near the Kenya-Somalia border October 19, 2011. REUTERS/Thomas Mukoya (KENYA - Tags: SOCIETY)

A man carries empty aluminium tins used for edible oil past a stack of tins at a recycling yard in western indian city of Ahmedabad October 18, 2011. Diwali will be celebrated across India on October 26. REUTERS/Amit Dave (INDIA - Tags: SOCIETY BUSINESS EMPLOYMENT TPX IMAGES OF THE DAY)

A man sprays soccer-inspired graffiti in the area around the National Stadium, as part of events prepared by the Federal District government to celebrate the countdown of 1,000 thousand days before the start of World Cup Brazil 2014, in Brasilia September 16, 2011. REUTERS/Ueslei Marcelino (BRAZIL - Tags: SPORT SOCCER SOCIETY)

A door made from metal is used on a compound at the village of Nabuk in southern Afghanistan's Helmand province, February 24, 2011. Village doors in Helmand are made from a variety of scavenged material -- oil drums, shipping containers, bits of cloth, rice sacks or tins -- and are often the only splash of individuality and colour in a drab, beige landscape where one compound looks almost identical to the next. Picture taken February 24, 2011. REUTERS/Finbarr O'Reilly (AFGHANISTAN - Tags: SOCIETY)

A door made from rusted metal is used on a compound at the village of Kunkak in southern Afghanistan's Helmand province, February 26, 2011. Village doors in Helmand are made from a variety of scavenged material -- oil drums, shipping containers, bits of cloth, rice sacks or tins -- and are often the only splash of individuality and colour in a drab, beige landscape where one compound looks almost identical to the next. Picture taken February 26, 2011. REUTERS/Finbarr O'Reilly (AFGHANISTAN - Tags: SOCIETY)

Car garage doors made from scrap metal are used on a compound at the village of Kunkak in southern Afghanistan's Helmand province, February 26, 2011. Village doors in Helmand are made from a variety of scavenged material -- oil drums, shipping containers, bits of cloth, rice sacks or tins -- and are often the only splash of individuality and colour in a drab, beige landscape where one compound looks almost identical to the next. Picture taken February 26, 2011. REUTERS/Finbarr O'Reilly (AFGHANISTAN - Tags: SOCIETY)

A door made from metal is seen on a compound at the village of Kunkak in southern Afghanistan's Helmand province, February 26, 2011. Village doors in Helmand are made from a variety of scavenged material -- oil drums, shipping containers, bits of cloth, rice sacks or tins -- and are often the only splash of individuality and colour in a drab, beige landscape where one compound looks almost identical to the next. Picture taken February 26, 2011. REUTERS/Finbarr O'Reilly (AFGHANISTAN - Tags: SOCIETY)