FILE PHOTO: A logo of DTEK (Donbass fuel-energy company) is seen on a building of a business centre in Kiev, Ukraine, July 5, 2016. REUTERS/Gleb Garanich
FILE PHOTO: A logo of DTEK (Donbass fuel-energy company) is seen on a building of a business centre in Kiev, Ukraine, July 5, 2016. REUTERS/Gleb Garanich