The railway operator will issue 334,052,579 new ordinary shares at a price of 1 marka each, equal to their nominal value, it said in a bourse filing.
After the share issue, Zeljeznice RS's capital will be divided into 334,102,579 shares, each with a nominal value of 1 marka.
The company's shareholders approved the plan at a meeting on Friday.
Its shares last traded on the Banja Luka bourse on June 19, closing flat at 41.38 marka.
(1 euro = 1.956 marka)