FILE PHOTO: An employee places ingots of 99.99 percent pure

FILE PHOTO: An employee places ingots of 99.99 percent pure silver on a cart at the Krastsvetmet non-ferrous metals plant, one of the world’s largest producers in the precious metals industry, in the Siberian city of Krasnoyarsk, Russia September 22, 2017. REUTERS/Ilya Naymushin – UP1ED9M14UU9X/File Photo