U.S. Trade Representative Jamieson Greer said Monday that China’s willingness to hold trade talks with the United States this week is a “good sign,” but he is not expecting any “enormous breakthrough.”

“I don’t expect some kind of enormous breakthrough today, what I expect is continued monitoring and checking in on the implementation of our agreement thus far,” Greer said on CNBC’s “Squawk Box.”

His comments come as top officials from President Donald Trump’s administration meet in Sweden with their Chinese counterparts for the third round of trade talks since Trump’s “Liberation Day” tariff announcement earlier this year.

One of the chief questions looming over the talks is whether the two nations will extend their temporary pause on the sweeping tariffs that brought two of the world’s largest economies to the brink earlier this year.

The current 90-day pause on tariffs between the U.S. and China is currently set to expire on Aug. 12, an agreement that was reached after leaders from the two nations held talks in Switzerland in May.