Assaf led the Kingdom"s delegation to the meetings of the Extraordinary Sessions of Arab Economic and Social Council in Cairo. On September 08, 2009, the Kingdom of Saudi Arabia topped the Middle East and Arab World countries in the field of the best investment environment, according to the Doing Business 2010 report. On September 09, 2009, the Minister of Petroleum and Mineral Resources Ali bin Ibrahim Al-Naimi led the Kingdom"s delegation to the meeting of OPEC in Vienna. On September 11, a Saudi medical team successfully made a rare surgery to a Saudi twins, in line with the directives of the Custodian of the Two Holy Mosques. On September 14, 2009, Crown Prince Sultan bin Abdulaziz Deputy Premier, Minister of Defense and Aviation and Inspector General, donated SR 9,019,628 to establish a dialysis center to be named after him in Burkina Faso. On September 23, 2009, the Custodian of the Two Holy Mosques King Abdullah bin Abdulaziz patronized opening ceremony of KAUST in Thual, Saudi Arabia. --More