A Quarry Drilled in Vratnica Posted on March 31, 2016December 10, 2018 by root More significant projectsNational Projects International Projects A Quarry Drilled in Vratnica The client Omja Minerals commissioned CEIM to do the investigative drilling works for a quarry in the village Vratnica, Tetovo. The total value of this project was just over 63,000 euros.