Shanghai and Hong Kong have maintained close economic and trade exchanges for a long time. The two sides will establish a working mechanism to enhance cooperation and exchanges. Shanghai-Hong Kong cooperation mechanism will continue to be upgraded, and there will be versions 2.0 and 3.0. Hong Kong has become an important force in the construction of the "Belt and Road" and an important window for Shanghai enterprises to "go global", says Tang Liang, vice president of Shanghai General Chamber of Commerce.