Chinese Vice Premier Han Zheng, also a member of the Standing Committee of the Political Bureau of the Communist Party of China Central Committee, attends a luncheon hosted by World Economic Forum (WEF) Executive Chairman Klaus Schwab, and exchanges views with business leaders including Apple CEO Tim Cook and Siemens AG President Joe Kaeser, during the WEF annual meeting in Davos, Switzerland, Jan. 21, 2020. Han Zheng delivered a speech titled "Work Together for an Open World Economy and Sustainable Global Development" at the 50th annual meeting of the WEF on Tuesday. (Xinhua/Pang Xinglei)