Chinese and American trade negotiators concluded their two-day meeting in Stockholm without a clear path forward to avert tariffs from skyrocketing back to ultra-high levels that formed an effective blockade on trade between the world’s two largest economies.

Officials are meeting in Sweden for their third round of talks in as many months, ahead of an Aug. 12 deadline, to try to avoid a flare-up in trade tensions.

China’s top leaders have pledged to help companies slammed by higher U.S. tariffs but held back on major moves after trade talks.