GK TNS energo OOO acquired an additional 4.97% stake in Marienergosbyt Open Joint-Stock Company (MICEX:MISB) on December 27, 2012. TNS Energo Group increased its stake from 24.44% to 29.41%.

GK TNS energo OOO completed the acquisition of an additional 4.97% stake in Marienergosbyt Open Joint-Stock Company (MICEX:MISB) on December 27, 2012.