Reuters Pictures: Raw Materials

A worker installs a biodiesel producing machine in Petchaburi province, 123 km (76 miles) south of Bangkok, January 14, 2008. Demand on biodiesel as a alternative fuel jumped as oil prices surged, pushing crude palm oil prices higher as it is used as a raw material for maing biodiesel. The government has had to allow the import of crude palm oil for the first time in a decade to soften domestic prices. Picture taken January 14, 2008. REUTERS/Sukree Sukplang (THAILAND)

Trucks carry raw nickel ore near Sorowako, Indonesia’s Sulawesi island, January 8, 2014. REUTERS/Yusuf Ahmad/File Photo

Workers stand as they wash coffee beans in the Banaran coffee factory owned by PT Perkebunan Nusantara IX in Semarang, Central Java province, Indonesia July 27, 2017 in this photo taken by Antara Foto. Antara Foto/Aditya Pradana Putra via REUTERS. ATTENTION EDITORS – THIS IMAGE WAS PROVIDED BY A THIRD PARTY. MANDATORY CREDIT. INDONESIA OUT. NO COMMERCIAL OR EDITORIAL SALES IN INDONESIA.

Crude oil mixed with water sprays from a well bucket in Bojonegoro, Indonesia’s East Java province July 16, 2009. REUTERS/Beawiharta (INDONESIA)

An employee works at the Changning steel and iron factory in Changzhi, Shanxi province February 9, 2010. Climbing import prices for iron ore will put upward pressure on domestic ore prices, a trend not favourable for Chinese steel mills facing oversupply of steel products, China Iron and Steel Association said on Tuesday. REUTERS/Stringer (CHINA – Tags: ENERGY BUSINESS) CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA

Containers filled with cotton are pictured at Sofitex, Burkina Faso’s biggest cotton company, in Bobo-Dioulasso, Burkina Faso March 9, 2017. Picture taken March 9, 2017. To match Special Report MONSANTO-BURKINA/COTTON REUTERS/Luc Gnago

A labourer welds steel bars at a construction site in Huaibei, east China’s Anhui province, December 31, 2006. China has raised the threshold for steel mills and trading firms to qualify for imports of iron ore in an effort to help curb inflows of the raw material to outdated steel mills, the industry body said on Thursday. CHINA OUT REUTERS/China Daily (CHINA)

Cold drawn steel bars are pictured at a production line at ‘Schmolz + Bickenbach’ group in Duesseldorf March 12, 2008. ‘Schmolz + Bickenbach’ group one of the world’s largest manufacturers, processors and distributors of special steel long products. REUTERS/Ina Fassbender (GERMANY)

A combine harvester is seen collecting soya beans at Amatheon Agri farm in Nwoya district in northern Uganda, July 16, 2015. Picture taken July 16, 2015. To match Feature UGANDA-AGRICULTURE/ REUTERS/James Akena?

An excavator operator waits for trucks to be loaded with iron ore at the Bedara Bhommanahalli (BBH) iron ore mines at Chitradurga in the southern Indian state of Karnataka November 9, 2012. India’s efforts to clamp down on illegal mining have handed a $15 billion lifeline to global iron ore giants, and there could be more to come. Steps taken by central and state authorities to clean up the mining and export of iron ore have shut down output in two key producing states, slashing shipments and forcing steel mills to import a raw material the country has in abundance. Picture taken November 9, 2012. REUTERS/Danish Siddiqui (INDIA – Tags: ENERGY BUSINESS POLITICS COMMODITIES)

A worker works next to a furnace pouring out melted iron at a factory of the Dongbei Special Steel Group Co. Ltd., in Dalian, Liaoning province September 25, 2014. China’s steel consumption dropped this year for the first time since at least 2000 due to slower economic growth, leading to a surplus of iron ore in the country and a more than 40 percent plunge in prices of the steelmaking raw material. Picture taken September 25, 2014. REUTERS/China Daily (CHINA – Tags: BUSINESS COMMODITIES TPX IMAGES OF THE DAY) CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA

A farmer sorts out cotton at a cotton purchase site on the outskirts of Tianmen, central China’s Hubei province October 26, 2007. China exported 47.4 billion U.S. dollars of cotton products in the first eight months in 2007, up 32.29 percent over the corresponding period last year, Xinhua News Agency reported. Picture taken October 26, 2007. REUTERS/Stringer (CHINA) CHINA OUT

Scrapped automobiles are piled up at Vtormet industrial company, in the Moscow suburb town of Lyubertsy, June 16, 2010. The scrappage programme awards car-owners 50,000 roubles ($1,718) to trade in vehicles 10 years or older for a new Russia-produced model. It has been a big success in achieving its aim: boosting production at Russian car factories, including assembly plants operated by the likes of Renault and Ford as well as Russian makers, who shut down their lines last year. Picture taken June 16, 2010. To match FEATURE RUSSIA-AUTOS/SCRAPPAGE REUTERS/Sergei Karpukhin (RUSSIA – Tags: TRANSPORT BUSINESS POLITICS)

A worker operates an electrolysis furnace, which produces aluminium from raw materials, at the Rusal Krasnoyarsk aluminium smelter in the Siberian city of Krasnoyarsk, May 18, 2011. The Krasnoyarsk smelter accounts for 24% of aluminium production in Russia and for 2.5% of global output, according to the company. REUTERS/Ilya Naymushin (RUSSIA – Tags: BUSINESS)

Steel pipes for sale are displayed at a shop in the Mullae-dong steel product district in Seoul July 13, 2010. REUTERS/Jo Yong-Hak (SOUTH KOREA – Tags: BUSINESS)

A drilling machine (R) and a dump truck are seen during the drilling of a winter test pit in an unknown location February 22, 2005. Just a few years ago, mining was in decline in Sweden and much of the sparsely populated, forested north looked like being left to logging companies and the native moose and reindeer. But thanks to strong demand for metals and rocketing prices, copper, zinc, gold and silver mining are undergoing a rebirth. Mining companies will invest more than 30 million euros ($35 million) in exploration in Sweden this year, mainly in the north, according to estimates by the Raw Materials Group (RMG) consultancy, up from around 25 million euros in 2004. Photo taken February 22, 2005. To match feature Minerals-Sweden. REUTERS/Lappland Goldminers/Handout

A worker cuts reinforcing bars in a steel factory in Ganyu county, Jiangsu province, February 27, 2013. Demand for iron ore in China, the world’s biggest importer of the steelmaking raw material, will grow at a faster pace this year, in step with an improving economy that should boost consumption of steel, an industry official said on Wednesday. REUTERS/China Daily (CHINA – Tags: BUSINESS COMMODITIES) CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA

A worker selects cotton in Bobo-Dioulasso, Burkina Faso March 7, 2017. Picture taken March 7, 2017. To match Special Report MONSANTO-BURKINA/COTTON REUTERS/Luc Gnago

A stacker pours salt onto a stock pile at Rio Tinto’s Dampier Salt Limited production facility at Port Hedland, about 1,600 km (960 miles) north of Perth, May 27, 2008. Picture taken May 27, 2008. REUTERS/Tim Wimborne (AUSTRALIA)