Professor Mohamed Hag Ali Hassan is President of The World Academy of Sciences (TWAS), Italy; President of the Sudanese National Academy of Sciences (SNAS); Chairman of the Governing Council of the United Nations Technology Bank, Turkey and Chairman of the International Advisory Board of the Centre for International Development (ZEF), Germany.
He was Professor and Dean of the School of Mathematical Sciences, University of Khartoum; President of the InterAcademy Partnership (IAP); founding Executive Director of TWAS; President of the African Academy of Sciences (AAS); founding President of the Network of African Science Academies (NASAC); Chairman of the Council of the United Nations University (UNU); and Chairman of the Honorary Presidential Advisory Council for Science and Technology, Nigeria.
Among his honours: Comendator, Grand Cross, and National Order of Scientific Merit, Brazil; and Officer, Order of Merit of the Italian Republic. He is a recipient of the G77 Leadership Award and the Abdus Salam Medal for Science and Technology
He is a member of several merit-based academies of science, which include, TWAS, AAS, the academy of Sciences of South Africa; the Pontifical Academy of Sciences and Hassan II Academy of Science and Technology.