She was speaking at a meeting between representatives of the Mission and the Croatian government's relevant ministries and working bodies.
Grabar-Kitarovic said coordination between the Mission and the European Commission Delegation in Croatia was excellent, the Ministry of Foreign Affairs and European Integration said in a statement after the plenary meeting at the ministry.
This was the sixth monthly plenary meeting with representatives of the Organisation for Security and Cooperation in Europe (OSCE) Mission since February this year.
Grabar-Kitarovic said cooperation with the Mission was excellent and that goals were being achieved in election reform, national minorities' rights, media freedom, police reform and civil society.
She said the Croatian government applauded the initiative to transform the Mission in the near future, adding this would confirm the maturity of Croatia's democratic institutions.