Li Chenggang's comments came after Chinese officials' negotiations with US counterparts including Treasury Secretary Scott Bessent in Stockholm, Sweden, as a deadline for levies to rebound approached.

The world's two biggest economies had slapped escalating tariffs on each other's goods this year, with duties reaching triple-digit levels and snarling supply chains.

But both sides agreed to temporarily lower the levies after high-level talks in Geneva in May, a pause due to expire August 12.

Washington and Beijing have since reached consensus following two days of talks in Stockholm to continue pushing for an extension of the tariff suspension, Xinhua reported.

Li had said that the talks were "candid, in-depth, constructive," the Xinhua report added.

The countries exchanged views over major trade and economic concerns, and are due to maintain close communications, Li said.

Since returning to the presidency in January, US President Donald Trump has imposed sweeping tariffs on allies and competitors alike, alongside separate steeper rates on US imports of steel, aluminum and autos.

While China faced a mid-August deadline for tariffs to bounce back to higher levels, dozens of other economies are facing elevated tariffs to come Friday, unless they reach deals with Washington.