Sheikh Dr. Mustaen Ali Abdul Hameed holds a first degree in economics and political science from Omdurman Islamic University. He obtained his Ph.D. and MA in Islamic Economics from Umm Al-Qura University, KSA. He is a researcher and consultant for many economic, administrative and training research and consulting centers in the Kingdom of KSA. He also contributed to the establishment of many Islamic investment, financing, and insurance and solidarity companies in the Democratic Republic of Sudan and the Kingdom of Saudi Arabia during the past twenty years. He worked as a Sharia advisor and chief Sharia supervisor at Al-Rajhi Bank, and was a member of the Sharia Board at Al Ahli Bank in the Sultanate of Oman, and a senior advisor at the Sharia Board Secretariat at Al Bilad Bank in KSA. He worked as a consultant in the treasury sector at Al Bilad Bank in KSA.