Hong Kong’s commerce minister warned on Wednesday of divisions in the global economy in the midst of a heightened trade war between China and the United States, while sidestepping reference to ongoing protests that have plunged the city into its biggest political crisis since 1997.Edward Yau Tang-wah, Secretary for Commerce and Economic Development of Hong Kong, spoke on Wednesday about “hiccups” in the global trade liberalisation process while moderating a panel at the city’s summit on the…