Treasury Secretary Janet Yellen attends the House Financial Services Committee hearing in Washington, US, September 30, 2021.(Photo: REUTERS)

But the statement did not elaborate on the concerns. It said the two officials discussed macroeconomic and financial developments in the United States and China, recognizing that developments in the two economies have important implications for the global economy.

Both sides said it was important for the two countries to strengthen communication and coordination on macroeconomic policies, according to the Chinese side's readout.

China also expressed its concerns over US tariffs and the fair treatment of Chinese companies, it said.