Base metals industry

In this image taken from U.S. Coast Guard video on Monday, Sept. 9, 2019, a crew member of a capsized cargo ship is pulled from the vessel by Coast Guard rescuers off Jekyll Island, Ga. Coast Guard rescuers pulled four trapped men alive from the ship Monday, drilling into the hull's steel plates to extract the crew members more than a day after their vessel overturned while leaving a Georgia port. (U.S. Coast Guard via AP)

Rescuers work near the stern of the vessel Golden Ray as it lays on its side near the Moran tug boat Dorothy Moran, Monday, Sept. 9, 2019, in Jekyll Island, Ga. Coast Guard rescuers have made contact with four South Korean crew members trapped inside the massive cargo ship off the coast of Georgia. (AP Photo/Stephen B. Morton)

In this July 24, 2019, photo, workers watch as a truck passes by stacks of shipping containers at a port in Yingkou in northeastern China's Liaoning Province. Authorities in China's rust-belt region are looking for support for its revival from Beijing's multibillion-dollar initiative to build ports, railways and other projects abroad. (AP Photo/Olivia Zhang)

In this Thursday, Aug. 15, 2019, photo several dead fish float along the bank of Burns Ditch near the Portage Marina in Portage, Ind. Some beaches along northwestern Indiana's Lake Michigan shoreline are closed after authorities say a chemical spill in a tributary caused a fish kill. (John Luke/The Times via AP)

FILE - In this May 13, 2019, file photo, a sign for Sonoita stands in the heart of southeastern Arizona where owners of wineries and other small tourism operations worry that the Rosemont Copper Mine proposed to be built in the nearby Santa Rita Mountains could harm their businesses with mining trucks rumbling down scenic state highway 83 that runs past the range. A federal judge on Wednesday, July 31, 2019, has overturned the U.S. Forest Service's approval of a Canadian company's planned new copper mine in southeastern Arizona. The judge ruled the agency improperly evaluated and considered water use issues associated with the Rosemont Mine planned in the Santa Rita Mountains on part of the Coronado National Forest. (AP Photo/Anita Snow, File)

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)

FILE - This Feb. 10, 2016, file photo, shows a former iron ore processing plant near Hoyt Lakes, Minn., that would become part of a proposed PolyMet copper-nickel mine. Environmental Protection Agency documents show that its staffers were critical of how Minnesota regulators drafted a key permit for the planned PolyMet copper-nickel mine. And they show the EPA officials concluded the permit would violate federal law because it lacked specific water pollution limits. The EPA released the documents after a court challenge by WaterLegacy. Environmental attorney Paula Maccabee says the EPA's concerns weren't reflected in PolyMet's final water pollution permit. (AP Photo/Jim Mone, 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)