Metals and minerals industry

This undated photo provided by 4th Row Films shows Fernando Serrano, 23, who plays a striking miner in "Bisbee '17," a story of how some 1,200 miners, most of them immigrants, were pulled violently from their homes in Bisbee, Ariz., by a private police force and put on cattle cars for deportation to a desolate area of New Mexico in 1917. The dark history of Bisbee was largely an open secret for decades in the funky old copper town just seven miles north of the U.S.-Mexico border. It's the sixth film of director Robert Greene, who said he learned about the town southeastern Arizona around 15 years ago. (Jarred Alterman/4th Row Films via AP)

In this Sept. 6, 2014 photo, Chris Cline speaks as Marshall University dedicates the new indoor practice facility as the Chris Cline Athletic Complex in Huntington, W.Va. Police in the Bahamas say a helicopter flying from Big Grand Cay island to Fort Lauderdale has crashed, killing seven Americans on board. None of the bodies recovered from the downed helicopter have been identified, but police Supt. Shanta Knowles told The Associated Press on Friday, July 5, 2019, that the missing-aircraft report from Florida said billionaire Chris Cline was on board. (Sholten Singer/The Herald-Dispatch via AP)

Numerous environmental activists walk to the site of the Garzweiler open-cast mine in Garzweiler, Germany, Saturday, June 22, 2019. The protests for more climate protection in the Rhineland continue. ( David Young/dpa via AP)

Numerous environmental activists walk on a roadway on the site of the Garzweiler open-cast mine in Garzweiler, Germany, Saturday, June 22, 2019. The protests for more climate protection in the Rhineland continue. (Marcel Kusch/dpa via AP)

Numerous environmental activists walk on a roadway on the site of the Garzweiler open-cast mine in Garzweiler, Germany, Saturday, June 22, 2019. The protests for more climate protection in the Rhineland continue. (David Young/dpa via AP)

FILE - In this April 30, 2007, file photo, a shovel prepares to dump a load of coal into a 320-ton truck at the Arch Coal Inc.-owned Black Thunder mine in Wright, Wyo. Two of the world's largest coal producers have announced a plan to combine their mining operations in Wyoming and Colorado in a bid to improve their competitiveness against growing natural gas and renewable energy sources. Arch Coal and Peabody Energy, both based in St. Louis on Wednesday, June 19, 2019, announced the joint venture. It will be 66.5% owned by Peabody and 33.5% owned by Arch. (AP Photo/Matthew Brown, File)

This satellite image provided by Maxar Technologies shows the oil tanker Front Altair off the coast of Fujairah, United Arab Emirates, Monday, June 17, 2019. New satellite photos released Monday show two oil tankers apparently attacked in the Gulf of Oman last week. The U.S. alleges Iran used limpet mines to strike the two tankers. Iran has denied being involved. (Satellite image ©2019 Maxar Technologies via AP)

FILE - In this May 2, 2019, file photo a worker arrives for his shift at the U.S. Steel Clairton Coke Works in Clairton, Pa. A fire at U.S. Steel's massive coke plant outside Pittsburgh knocked a key pollution control system offline Monday, June 17, 2019. It triggered a health warning as officials monitored the air around the plant for signs of a release of toxic sulfur dioxide. It was the second fire since December at the coke works, the largest facility of its kind in the United States. The plant turns coal into coke, one of the raw materials of steel. (AP Photo/Gene J. Puskar, FILE)

FILE - This Dec. 13, 2016, file photo, shows the former Anaconda smelter smokestack behind sculptures of miners at the Anaconda Smelter Stack State Park viewing area in Anaconda, Montana. Residents in the nearby community of Opportunity are suing to get the Atlantic Richfield Co. to do a more thorough cleanup of arsenic in residential yards. The Montana Supreme Court ruled in December 2017 that they could move forward with their 2008 lawsuit. Arco appealed, arguing a state lawsuit shouldn't be able to interfere with an ongoing cleanup. The U.S. Supreme Court said Monday, June 10, 2019, it will hear the appeal. (AP Photo/Matt Volz, File)