The reshuffle kept another son, Prince Abdulaziz bin Salman, as energy minister, the king said in the royal decree, carried by state news agency SPA.
Foreign Minister Prince Faisal bin Farhan Al Saud, Finance Minister Mohammed al-Jadaan and Investment Minister Khalid al-Falih remain in their positions, the decree showed.
The crown prince, known as MbS, is promoted from defence minister and has been the de facto ruler of Saudi Arabia, the world's biggest oil exporter and a major U.S. ally in the Middle East.
The crown prince said the kingdom has increased its self-sufficiency in military industries to 15% from 2% and plans to reach 50% under the newly appointed defence minister, SPA reported.
The 37-year-old crown prince, widely known by the acronym MBS, has taken the lead on Vision 2030, the kingdom’s wide-ranging plan to transform its economy and end its dependency on oil.
Crown Prince Mohammed has changed Saudi Arabia radically since rising to power in 2017, leading efforts to diversify the economy from its dependence on oil,
He is associated with the October 2018 killing of Saudi journalist and critic Jamal Khashoggi, who disappeared after entering the Saudi Consulate in Istanbul. U.S. intelligence found that the crown prince likely approved the killing.
The prince said in 2019 that he took “full responsibility" for the killing since it happened on his watch, but denied ordering it. Saudi officials have said Khashoggi’s killing was the work of rogue Saudi security and intelligence officials. Saudi Arabian courts say they have sentenced eight Saudi nationals to prison over the killing but have not identified them.
President Joe Biden once vowed to make Saudi Arabia a “pariah" over the killing, but he visited the kingdom and met with the crown prince earlier this year, acknowledging the continued importance of relations with the world's largest oil exporter.
