December 1 (SeeNews) - Slovenia's Nova Ljubljanska Banka (NLB) [LJE:NLBR] has signed a guarantee contract with Multilateral Investment Guarantee Agency (MIGA), part of the World Bank Group, against the risk of expropriation of mandatory reserves held by its Belgrade-based subsidiary Komercijalna Banka [BEL:KMBN] with Serbia's central bank, it said.