The investigation was launched at the request of the European Union Force (EUFOR) Command and the Office of the High Representative (OHR).
A report on the results of the investigation was sent to the OHR and Bosnian authorities on Monday, and Radovanovic said he expected the report to be accepted.
The investigation could not confirm that Mladic had been hiding in the military facility near Han Pijesak and it was not possible to link any person from Republika Srpska's military structures to providing such support, the minister said at a press conference.
Radovanovic said that the results of the investigation were limited in view of the fact that the investigators did not have access to all the intelligence cited by the EUFOR Commander, British General David Leakey, and High Representative Paddy Ashdown.
However, Radovanovic said that "it has been established beyond any doubt" that between July 1, 1999 and December 31, 2001 slightly over 13,000 convertible marks (about 6,500 euros) had been paid to Mladic from the Republika Srpska budget, which proved that one of the most wanted war crimes suspects had enjoyed institutional support.
The investigation also revealed that another fugitive sought by the Hague war crimes tribunal, General Vinko Pandurevic, had received two months' military pay at a time when the tribunal unsealed the indictment against him in 2001.
Radovanovic said that the investigation identified six persons as being involved in the payments, and that the Public Prosecutor of Republika Srpska was yet to decide on whether charges would be pressed.