Chinese Premier Li Qiang vowed Sunday to enhance market access and attract more foreign investment, as the world's second-largest economy has been slumping amid a property sector crisis, while its worsening business environment has dampened sentiment among many overseas companies.Li said at the opening ceremony of a major trade fair in Shanghai that Beijing will work with all countries to "jointly build an open economy," as the global economic recovery is lacking momentum. President Xi Jinping also sent a letter to the event and pledged that China will continue its "high-level opening up."X…READ FULL ARTICLE