According to today's agreement, a special meeting will be held so as to define how the trade unions can participate in the campaign, Kosor added.
The government believes that unionists can organise round tables and other events to present what has been achieved in Croatia's EU accession negotiations relevant to union members.
Alongside Croatia's EU entry referendum, a referendum on simplifying the procedure for calling referenda can be held.
There is no doubt about that, the premier said.
Answering questions from the press, Kosor said that the EU entry referendum will be held in compliance with the Croatian Parliament's decision, 30 days after the signing of the accession treaty with the EU.
In late November 2010, unionists and Kosor reached agreement that a referendum must be called if so requested by 200,000 registered voters and that the time for the collection of the required number of signatures should be 30 days. The government and the trade union federations thus agreed that a referendum on which the trade unions had been insisting for some time would be held on the same day as the referendum on Croatia's accession to the European Union.
According to that agreement, the referendum question, however, will not be about amendments to labour legislation, but will read: "Do you agree that a referendum must be called if so requested by 200,000 registered voters and that the time for the collection of the required number of voters' signatures should be 30 days?", as against provisions stipulating that 10 percent of the electorate, or approximately 450,000 voters, must sign a petition for a referendum within two weeks in order to call a referendum.
During today's meeting with Kosor, the unionists also proposed that union membership fees be treated as a tax relief.
The meeting also revolved around the situation in some ailing companies.