FILE - People attend a protest against pollution and the exploitation of a lithium mine in western part of the country, in Belgrade, Serbia, on Sept. 11, 2021. German Chancellor Olaf Scholz will visit Serbia later this week to discuss a tentative deal with the Balkan country for the controversial excavation of lithium, a critical substance in making batteries for electric vehicles. (AP Photo/Darko Vojinovic, File)
FILE - Serbian protesters opposed to lithium mining stand on the highway during a protest in Belgrade, Serbia, on Dec. 11, 2021. (AP Photo/Darko Vojinovic, File)