Mr. Khan is Pakistan’s ambassador to China, a post which he has held since 2008. Prior to his current assignment, from 2005 to 2008, he was Pakistan’s permanent representative to the UN and other international organizations in Geneva. Earlier, Mr. Khan worked as Foreign Office spokesman in Islamabad; director-general to the UN Disarmament; and director-general in East Asia and Pacific region. He was president of the Conference on Disarmament from June to August in 2005.