Top U.S. and Chinese officials will resume trade talks for a second day in London on Tuesday, hoping to secure a breakthrough over export controls for goods such as rare earths that have threatened a global supply chain shock and slower economic growth.

High-level delegations from the United States and China are meeting in London to try and shore up a fragile truce in a trade dispute that has roiled the global economy.

Monday's U.S.-China trade talks could be about a lot more than just tariffs. U.S. and China officials met in London Monday to discuss trade, in what could be a de-escalation of the trade war between the world's two largest economies. The talks are likely to cover rare earth metals and other flashpoints.