An employee works at Krastsvetmet non-ferrous metals plant in Krasnoyarsk
A checker inspects chains made of 58,5 percent pure white gold 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, December 14, 2016. Picture taken December 14, 2016. REUTERS/Ilya Naymushin