Iranian President Hassan Rouhani and Chinese President Xi Jinping (L) take part in a welcoming ceremony on January 23, 2016 in the capital Tehran.  Chinese President Xi Jinping arrived on January 22, 2016 in Iran on the third leg of a Middle East tour aimed at boosting economic ties with the region. State news agency IRNA said Xi, accompanied by three deputy premiers and six ministers as well as a high-ranking business delegation, was greeted at Tehran airport by Iranian Foreign Minister Mohammad Javad Zarif.   / AFP / STR        (Photo credit should read STR/AFP/Getty Images)
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