FILE PHOTO: Barrels with uranium oxide are stored at the Ulba Metallurgical Plant in the northeastern industrial city of Oskemen (Ust-Kamenogorsk), Kazakhstan May 26, 2017. REUTERS/Shamil Zhumatov/File Photo
FILE PHOTO: Barrels with uranium oxide are stored at the Ulba Metallurgical Plant in the northeastern industrial city of Oskemen (Ust-Kamenogorsk), Kazakhstan May 26, 2017. REUTERS/Shamil Zhumatov/File Photo