U.S. President Donald Trump said on Tuesday that he was not seeking a summit with Chinese President Xi Jinping, but added that he may visit China at Xi's invitation, which Trump said had been extended.

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.

The Stockholm meeting, following similar talks in Geneva and London, is set to extend a 90-day pause on those tariffs. During the hiatus, U.S. tariffs have been lowered to 30% on Chinese goods, and China set a 10% tariff on U.S. products.