Top officials from the United States and China spoke over the phone Monday morning in Beijing to discuss the first phase of the trade deal the countries agreed to earlier this year.

Chinese Vice Premier Liu He spoke with US Trade Representative Robert Lighthizer, his counterpart during negotiations, and Secretary of the Treasury Steve Mnuchin.

The Chinese Commerce Ministry said in a statement the two sides agreed to “work together to create a beneficial environment for carrying out Phase 1 trade deal.”

They also agreed to “strengthen cooperation” on issues of macroeconomics and public health.