Zito Polog will offer the stake for sale to maintain the company's liquidity and stability and comply with legal provisions, it said in a bourse filing.
The company will offer 11,536 own shares, each with a par value of 51.13 euro ($55.2).
Zito Polog's shareholders approved the planned sale at a meeting on May 22.
The company's shares last traded on the MSE on June 6 at an average price of 2,266 denars ($39.9/36.8 euro).
(1 euro = 61.52 denars)