President Donald Trump's top economic advisers are returning home from Beijing with little more than glaring proof of how far apart the U.S. and China are on trade issues.

A U.S. delegation led by Treasury Secretary Steven Mnuchin wrapped up two days of negotiations with Chinese economic officials on Friday with little more than an agreement to keep talking. No time or place for further discussions was announced, with Trump's threat to impose tariffs on as much as $150 billion in Chinese goods still looming.

The two sides appear to be at loggerheads, with both making a long list of demands the other won't meet, analysts say. Trump wants China to cut its annual trade surplus with the U.S. by at least $200 billion by the end of 2020 and not retaliate against U.S. tariffs. China wants the U.S. to stop an investigation into the country's acquisition of sensitive American technologies.