Reuters reports that the Trump administration has invited Chinese officials to restart trade talks, the White House’s top economic adviser said, as Washington prepares to further escalate the U.S.-China trade war with tariffs on $200 billion worth of Chinese goods.

Larry Kudlow, who heads the White House Economic Council, told Fox Business Network that U.S. Treasury Secretary Steven Mnuchin had sent an invitation to senior Chinese officials, but he declined to provide further details.

“There’s some discussions and information that we received that the Chinese government – the top of the Chinese government wished to pursue talks,” Kudlow said. “And so, Secretary Mnuchin, who is the team leader with China, has apparently issued an invitation.”

Two people familiar with the effort said Mnuchin’s invitation was sent to his Chinese counterparts, including Vice Premier Liu He, the top economic adviser to Chinese President Xi Jinping, for talks in coming weeks.

The invitation comes amid a swelling chorus of opposition to tariffs from Western business circles.