Metals and minerals industry

Firefighters remained on the scene of a fire that has been burning for more than 24 hours at the Northern Metal Recycling plant, Wednesday, Feb. 19, 2020, in Becker, Minn. Firefighter Toni Knutson says the fire is burning under a huge pile of cars. She says cranes are being used to remove the vehicles from the pile one-by-one. (David Joles/Star Tribune via AP)

In this Thursday, Jan. 30, 2020, photo, Houston resident Guadalupe Ortiz takes her daily walk at a city park located across the street from her home and a Valero oil refinery. Houston's lack of zoning has resulted in residents like Ortiz living next to petrochemical facilities and businesses that handle hazardous substances. (AP Photo/ Juan Lozano)

This photo taken on Monday Jan. 22, 2020 shows a gold miner holding gold in Kidal, Mali. A gold rush is underway in northern Mali in an area where al-Qaida-linked militants operate, raising concerns that new profits from the artisanal mining could benefit not only the local economy but also the Islamic extremists. A coalition of armed Tuareg rebels known as the CMA controls the Kidal region and its leaders are the ones overseeing the gold panning activities. (AP Photo/Baba Ahmed)

FILE - This May 8, 2017, file photo, shows Arch Canyon within Bears Ears National Monument in Utah. The U.S. government implemented final management plans Thursday for two national monuments in Utah that President Donald Trump downsized. The plans ensure lands previously off-limits to energy development will be open to mining and drilling despite pending lawsuits by conservation, tribal and paleontology groups challenging the constitutionality of the president's action. (Francisco Kjolseth/The Salt Lake Tribune via AP, File)

Joe Kaeser, CEO of Siemens, speaks during the Siemens Annual Shareholder's meeting in Munich, Germany, Wednesday, Feb. 5, 2020. Orders and earnings at industrial conglomerate Siemens were lower than a year earlier in the October-December period, the company said Wednesday, weighed down by weaker performances in the auto and energy sectors. (Peter Kneffel/dpa via AP)

A man casts his shadow in the coal port of the Mehrum coal-fired power plant in the district of Peine in Hohenhameln, Germany, Wednesday, Jan. 15, 2020. Germany wants to gradually phase out the climate-damaging combustion of coal for electricity generation by 2038. ( Julian Stratenschulte/dpa via AP)

Treasury Secretary Steven Mnuchin, right, and Secretary of State Mike Pompeo, left, participate in a briefing at the White House in Washington, Friday, Jan. 10, 2020. (AP Photo/Susan Walsh)

Secretary of State Mike Pompeo and Treasury Secretary Steve Mnuchin brief reporters about additional sanctions placed on Iran, at the White House, Friday, Jan. 10, 2019, in Washington. (AP Photo/ Evan Vucci)