Investcom said earlier it would make its market debut in Dubai, becoming one of the first companies to list on a new bourse trumpeted by local officials as a project that would turn the booming Gulf Arab emirate into a major financial centre.
Investcom, which is rapidly raising its international profile, also plans a secondary listing in London. Mikati said a second independent director would join the board controlled by Lebanon's powerful Mikati family.
Investcom has more than 3.3 million mobile phone subscribers in sub-Saharan Africa and Arab countries such as Syria and Yemen.
The company said this week it had won mobile phone licences for Afghanistan and the West African nation of Guinea.