PODGORICA (Montenegro), April 16 (SeeNews) – Russia’s En+ Group, a shareholder in bankrupt Montenegrin aluminum smelter Kombinat Aluminijuma Podgorica (KAP), has filed a lawsuit against the Podgorica-based company and its court-appointed administrator in a bid to halt the sale of KAP assets to local firm Uniprom, Montenegrin media reported on Wednesday.