Khalifa, the Crown Prince of the Kingdom of Bahrain and Prince Abdul Mateen of Brunei Darussalam.
The Malaysian entourage included Datuk Ahmad Rasidi Hazidi, the Malaysian High Commissioner to the United Kingdom and Eire, and Tun Ahmad Sarji Abdul Hamid, member of the board of trustees of OCIS.
After the ceremony, Tun Ahmad Sarji said that in these very challenging times where there was a lot of misunderstandings, the role of the centre was important.
Prince Charles, in his speech, thanked Muslim countries and leaders for their generous contributions towards the building of the new centre.
Malaysia had contributed to the panelling of the Malaysian auditorium in the form of wood carvings by master carvers from Terengganu.