BANJA LUKA (Bosnia and Herzegovina), June 28 (SeeNews) – Bosnian service company Energoinvest [BANJ:ENGV-R-A] has been put up for sale at a starting price of 12.4 million marka ($7.9 million/6.3 million euro), the authorized seller, the Republic of Srpska Investment-Development Bank, IRBRS, said on Thursday.