Mesic is expected to deliver an address on Saturday.
Answering a question from Hina, Cuban Deputy Foreign Minister Abelardo Moreno said that President Stjepan Mesic's presence at the summit was a clear indicator of Croatia's importance in the Non-Aligned Movement although it is not a full member but an observer.
Moreno was unable to say if Mesic would meet Cuban leader and summit host Fidel Castro on the fringes of the event.