December 6 (SeeNews) - Bosnian hydro power producer Hidroelektrane na Drini [BANJ:HEDR-R-A] said on Tuesday that its shareholders approved a plan to increase the share capital of its fully-owned unit Hidroelektrane Bistrica by a further 10 million marka ($5.4 million/5.1 million euro), shortly after deciding to raise it by 30 million marka.