BANJA LUKA (Bosnia and Herzegovina), December 10 (SeeNews) – The Banja Luka bourse said on Monday it would auction a package of 710,000 shares of Bosnian municipal water supply company Vodovod a.d. Banja Luka [BANJ:VDBL-R-A] for an initial 475,700 marka ($313,830/243,220 euro) on December 17.