Beijing is ready to resume trade talks with Washington, China’s ambassador to the U,S. Cui Tiankai said, as a top U.S. business lobby in China said nearly half its members are seeing non-tariff barrier retaliation in China due to the trade war.

No further trade talks between top Chinese and U.S. negotiators have been scheduled since the last round ended in a stalemate on May 10.

Negotiations between the United States and China have soured dramatically since early May, when Chinese officials sought major changes to the text of a proposed deal that the Trump administration says had been largely agreed.

But Chinese Ambassador to Washington Cui Tiankai said Beijing was still open for talks. “China remains ready to continue our talks with our American colleagues to reach a conclusion. Our door is still open,” Cui said on Tuesday.

He blamed the U.S. side for frequently “changing its mind” on tentative deals to end U.S.-China trade disputes. Cui said it was U.S. negotiators that had abruptly backed away from some previous deals that had been tentatively agreed over the past year.