X0306 4 2020-01-27 0 0001385849 ENERGY FUELS INC UUUU 0001729857 Tarnowski Matthew C/O ENERGY FUELS INC. 225 UNION BLVD., SUITE 600 LAKEWOOD CO 80228 0 1 0 1 Chief Accounting Officer and Controller Common Shares 2020-01-27 4 F 0 11441 1.62 D 90136 D These shares, representing the total dollar value of applicable tax withholding obligations of Reporting Person (determined by the closing price of Issuer's common shares on January 24, 2020 - the last trading day prior to the vesting date), were withheld from Reporting Person by Issuer to satisfy income tax withholding requirements resulting from the vesting of exempt restricted stock unit grants previously reported in Table I. David C. Frydenlund as Attorney-in-Fact for Matthew Tarnowski 2020-01-28