The Agreement between the Government of the Republic of Croatia and the Government of the Kingdom of Norway on mutual protection of classified information was signedThe Agreement between the Government of the Republic of Croatia and the Government of the Kingdom of Norway on mutual protection of classified information was signed in Zagreb on 3 July 2018.

The Agreement between the Government of the Republic of Croatia and the Austrian Federal Government on the exchange and mutual protection of classified information was signedThe Agreement between the Government of the Republic of Croatia and the Austrian Federal Government on the exchange and mutual protection of classified information was signed in Zagreb on 24 July 2018.

The Agreement between the Government of the Republic of Croatia and the Government of the Republic of Lithuania on Mutual Protection of Classified Information​The Agreement between the Government of the Republic of Croatia and the Government of the Republic of Lithuania on Mutual Protection of Classified Information was signed through diplomatic channels in July 2017.

The Agreement between the Government of the Republic of Croatia and the Council of Ministers of Bosnia and Herzegovina on Mutual Protection of Classified Information

The Agreement between the Government of the Republic of Croatia and the Council of Ministers of Bosnia and Herzegovina on Mutual Protection of Classified Information was signed on 7 July 2017 in Sarajevo, after a joint session of the Government of the Republic of Croatia and the Council of Ministers of Bosnia and Herzegovina.

The Agreement between the Government of the Republic of Croatia and the Government of Romania on Mutual Protection of Classified InformationThe Agreement between the Government of the Republic of Croatia and the Government of Romania on Mutual Protection of Classified Information was signed in Zagreb on 12 June 2017, on the occasion of the official meeting of the Croatian Prime Minister Andrej Plenković with the Romanian Prime Minister Sorin Grindeanu.