China's ruling Communist Party will hold its five-yearly congress beginning on Oct. 16, with Xi Jinping poised to secure an historic third leadership term and cement his place as the country's most powerful leader since Mao Zedong.

President Xi Jinping says one country, two systems must be executed comprehensively, with China having overall jurisdiction but city enjoying high degree of autonomy. He also stresses need for patriots in office and upholding of city's free economy and common law system. He also sets out expectations for John Lee administration, stressing efficiency,...