Declining to reveal names of the tenderers or any information about how many foreign and how many domestic companies purchased the documentation, Debanic said that the tenderers wanted to remain unnamed in this stage.
He only confirmed that the two current mobile phone operators -- HTmobile and VIPnet -- had also purchased the documentation.
Unit 20 August, potential tenderers can ask additional questions about the matter, and until 30 August, the council will answer them, Debanic said.
The deadline for offering final bids is at noon on 14 September. On that date, all bids will be opened and the public will be informed about the ownership structure of bidders and their bids, he said. A decision on the selection of the best tender is expected to be made by 14 October.
According to the regulations, the two existing operators will have to provide national roaming to the third operator at an agreed price. Asked by reporters about VIPnet's appeal against this obligation which the company lodged with the Constitutional Court this summer, Debanic said that appeal could not slow down the ongoing process of selecting the best bidder for the third operator.