U.S. Trade Representative Robert Lighthizer said Wednesday that his office was once again in conversations with Chinese counterparts following a breakdown in trade negotiations last month.

Lighthizer said that he had scheduled a “conversation” with an official for this week to lay the groundwork for a planned meeting between President Trump and Chinese President Xi Jinping at the G-20 summit in Osaka, Japan at the of the month. Lighthizer said he and Treasury Secretary Steven Mnuchin would follow-up with additional meetings with his counterparts.