Mines “Kreka” in Tuzla

First ton of coal was excavated on September 22nd 1884 for the purposes of salt factory in Simin Han. The subsidiary company - mines “Kreka” in Tuzla includes four mines, "Mramor" - underground mining, "Šikulje" – surface exploitation, "Dubrava" - surface exploitation and "Bukinje" - underground mining.