Kosor and Djukanovic expressed satisfaction with discussions held over the working lunch.
The two premiers said that every meeting between the two countries' officials was a confirmation of very good bilateral relations.
Kosor and Spiric talked about preparations for holding a joint meeting of the Croatian and Bosnian governments.
They reaffirmed the friendly relations between Croatia and Bosnia.
Djukanovic and Spiric arrived in Zagreb to attend an ongoing EBRD annual meeting.