A rare earths agreement between the United States and China remains in force, with Washington signalling that any extension will be announced at the appropriate time, a senior US official said on Sunday.
US President Donald Trump and his Chinese counterpart Xi Jinping are set to meet in Beijing on May 14 and 15 for high-level talks.
"It's still in effect. It doesn't expire yet," the official told reporters, adding conversations are ongoing but it wasn't clear yet if the deal will be extended.
"I'm confident we'll announce any potential extension at the appropriate time."
The upcoming summit is expected to cover a range of sensitive issues, including the US-Israeli war on Iran, trade tensions, Taiwan and other geopolitical flashpoints.
The two leaders last met in October in South Korea, where they agreed to pause a damaging trade war.
That dispute had seen Washington impose triple-digit tariffs on Chinese goods, while Beijing threatened restrictions on global rare earth supplies.
