The US is now considering tariffs on another $200bn in goods, including consumer products that were spared duties in the initial $50bn round.
Sales to the USA rose by 13.3%, while China's surplus with the States shrank marginally to $28.1bn (£21.7bn) last month from a record $29bn (£22.4bn) in June.
The United States and China implemented tariffs on $34billion worth of each other's goods in July.
According to the Chinese Ministry of Commerce, the measure will come into effect on August 23, the same day as America's latest levies.
Chinese state media, reflecting the government's stance, has said China will not be cowed in the face of US threats.
Chinese imports worth $34 billion would be subject to the new 25% tariff as of July 6, with another $16 billion worth of imports subject to the tariff at a later date.China retaliateswith an equivalent set of tariffs.
A US-China trade war will reduce global output by 0.7% by 2020, with China's economy taking a 1.3% hit and US GDP dropping 1%, Oxford Economics said in a research note on Tuesday, before the new list was released.
Beijing has announced plans to retaliate immediately against the latest round of U.S. tariffs on Chinese imports by slapping a wide range of American products, worth $16 billion, with a 25 percent levy.
In the meantime, it sought public comment on the new items.
They appear far from a resolution. and according to US local news outlets, the USTR is reviewing the 10 percent tariffs on a further 200-billion USA dollars of Chinese imports...and is considering raising the rate to 25 percent.
"Certain people go against the tide for their own private ends and go against morality; the barrier of tariffs wantonly rise, and the stick of hegemony is raised all around", the commentary said.
A list published by the U.S. Trade Representative's office indicated 279 import product lines for tariffs.
"With each successive round of tariffs, Trump continues to back China into a corner, forcing Beijing to respond in kind", said James Zimmerman, a partner in the Beijing office of global law firm Perkins Coie and a former chairman of the American Chamber of Commerce in China.
China said it is targeting 333 products, including crude oil, coal, diesel, cars, bicycles, medical equipment, steel products, scrap metals and waste paper, as well as fish meal.
John Neuffer, president and CEO of the Semiconductor Industry Association, said in a statement they were disappointed and puzzled why semiconductors remain on the final tariff list.