China has strongly condemned the killing of the Iranian supreme leader, Ayatollah Ali Khamenei, which has left Tehran in turmoil and the Middle East facing a major regional escalation.However, analysts believe that China’s position as Iran’s top oil buyer and trade partner will endure through any political upheaval.They also expect Beijing to adopt a pragmatic approach towards Iran’s next leadership, despite the potential threat to Chinese diplomatic and defence ambitions in the Middle East...