Yet analysts say the Chinese leader is likely holding out for concrete deliverables before agreeing to the high-profile meeting. Trump dramatically escalated the trade war with the world's second-largest economy in April, rolling out sweeping new tariffs that prompted China to respond with its own export duties and other measures.

US President Donald Trump hinted at a "not-too-distant" visit to China after an invitation from Xi Jinping, signalling possible diplomacy amid trade tensions, and geopolitical strains.