The Trump administration's tariff hike on medical equipment, electronics and other goods from China apply to exports made by US or European companies as well as Chinese suppliers.
U.S. Trade Representative Robert Lighthizer said the United States would impose tariffs of 10 percent on the additional Chinese imports.
Administration officials said a two-month process would allow the public to comment on the proposed tariffs before the list is finalized. The move escalates the trade war between the world's two largest economies.
The previous round of tariffs: The Trump administration last week imposed 25 percent tariffs on $34 million in Chinese goods, prompting Beijing to impose retaliatory tariffs of the same amount on USA imports.
The United States complains that China uses predatory practices in a push to challenge American technological dominance.
China's retaliation to those measures was "without any global legal basis or justification", Lighthizer said Tuesday.
Also Tuesday, China stepped up action against some USA goods by announcing anti-dumping duties raw materials used in making optical fibers.
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President Donald Trump has threatened to tax as much as $550 billion in Chinese products - an amount that exceeds America's total imports from China a year ago.
"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", he said in a statement. Rather than address our legitimate concerns, China has begun to retaliate against US products.
If he goes ahead it would mean thousands of products from fish to chemicals, metals and tires would face new taxes. "It will also result in retaliatory tariffs, further hurting American workers", a Chamber spokeswoman said.
To argue their case against tariffs, consumer companies' playbook has included pointing to higher costs for everyday goods, while laying the blame at the president's feet - the American Apparel and Footwear Association has dubbed the tariffs the "Trump tax". "Unfortunately, China has not changed its behaviour".
David Cohen, a political scientist at the University of Akron, said the pressure on Mr. Trump will mount as the economic pain spreads from affected companies to be more widely felt by consumers.
Trump authorized an initial $50 billion in tariffs - including the $34 billion that took effect Friday - to match those losses.