The bidder has to launch the buyout offer within seven days after the date of approval, MF Banka said in a filing to the Banja Luka Stock Exchange (BLSE).
MF Grupa intends to offer 193.27 marka ($105.7/98.8 euro) per each MF Banka share in the buyout bid.
MF Grupa currently owns a 94.87% stake in MF Banka.
The lender's shares have not traded on the Banja Luka bourse in the past year.
The Serb Republic is one of two autonomous entities that form Bosnia and Herzegovina. The other one is the Federation.
(1 euro = 1.956 marka)