Chinese Premier Li Keqiang steps down from his plane upon arrival at Pakistan's Nur Khan air base in Rawalpindi on May 22, 2013. Chinese Premier Li Keqiang vowed to strengthen his country's partnership with Pakistan as he arrived for a visit less than two weeks after the country's general election. The long-time allies will look to use the two-day trip to boost trade ties, and Li will meet prime minister-elect Nawaz Sharif — who has not yet been sworn in — as well as holding talks with senior officials.