Bakr bin Laden, half-brother of the deceased Al-Qaeda leader Osama bin Laden, is the Chairman of the Saudi Binladin Group. Revenue of his company is estimated at $6 billion. His company is responsible for construction projects in the Al-Haram Al-Sharif in Mecca, such as the expansion and the jamarat projects. The group has been involved with several major projects in the country, including the King Abdullah Economic City, the King Abdul Aziz International Airport, and the King Saud University. In November 2017 he was detained, along with several Saudi princes and billionaires, on an anti-corruption drive. He spent three months at the Ritz-Carlton hotel in Riyadh before being released in January 2018.