BANJA LUKA (Bosnia and Herzegovina), December 11 (SeeNews) – Bosnian 65% state-owned hydro power producer Hidroelektrane na Trebisnjici (HET) said on Friday it will buy a 30% share in the Dabar hydro power plant (HPP) for 9.3 million marka ($5.2 million/4.8 million euro) from its parent, power utility Elektroprivreda Republike Srpske (ERS).