“For over a year, the Trump administration has patiently urged China to stop its unfair practices, open its market, and engage in true market competition,” Trade Representative Robert Lighthizer said. “China has not changed its behavior."
Duties on Chinese goods started at 12:01 a.m. Friday in Washington, just after midday in China.
America imported almost $156 billion in advanced technology information and communications equipment from China in 2017 -- an almost six-fold increase from 15 years earlier.
The tariffs President Donald Trump imposed in March have generated $582 million from steel imports and $195 million from aluminum as of last week, according to the Commerce Department.