Five things to know about Iran's new supreme leader, Mojtaba Khamenei

The appointment of Mojtaba Khamenei as Iran's new supreme leader is seen as a defiant move, with the selection of the son of the previous leader potentially indicating a continuation of existing policies. This development may lead to increased tensions with Western countries. The impact on the global market is expected to be limited, but oil prices could be affected by potential changes in Iran's relationships with other nations.