From Air Force One, on his way to a rally in Montana, Trump said the USA is ready to target an additional US$200 billion in Chinese imports - and then US$300 billion more - if Beijing refuses to yield to U.S. demands and continues to retaliate.
The Trump administration's new 25 percent duties apply to 818 Chinese imports worth $34 billion.
USA carmaker Ford Motor Co said on Thursday it has no plans now to hike retail prices of its imported Ford and Lincoln models in China, despite steep additional tariffs on imported US vehicles set to come into play on Friday.
Beijing has said it will not "fire the first shot" in a trade war with the United States, but has made clear that Chinese tariffs on American goods would take effect immediately after USA duties on Chinese goods are put in place. China immediately said it would be forced to retaliate. U.S. tariffs on steel and aluminum imports have provoked retaliatory measures against billions of dollars of American exports. China's retaliatory tariffs will become effective "immediately" after the USA acts, according to the customs authority.
American pet-food makers, meanwhile, say they're facing more rigorous inspections at ports, which delay goods from reaching shelves and ultimately hurt sales.
In the latest sign that the risk of penalties is hitting trade, a vessel carrying US coal heading for China switched its destination to Singapore.
Beijing has announced a series of headline-grabbing initiatives including "Made in China 2025", which calls for creating Chinese global competitors in robotics, artificial intelligence, biotechnology and other fields.
Chinese stocks have taken a beating in recent weeks, entering a bear market, as concerns about the trade-war have mingled with worries about how an ongoing debt-control campaign will feed through into the outlook for economic growth.
"These tariffs target the vital parts and components used in equipment manufacturing throughout the U.S.", Slater said. US stocks edged higher on Thursday, however, amid hopes that American trade tensions with Europe may ease after comments from German Chancellor Angela Merkel.
News of the hold-ups came as Washington imposed tariffs on $34 billion of Chinese imports this morning.
Chinese leaders fail to see how damaging their tactics appear to Western governments, said Scott Kennedy of the Center for Strategic and International Studies in Washington. The threat deepened tensions with the European Union, which warns that vehicle tariffs would inflict pain across its 28 member states.
Although China's $375.6 billion goods trade surplus over America has underpinned tensions between the countries, Mr Trump has alleged that China steals intellectual property, which China denies.
As the tariffs approached, the U.S. central bank warned the impending trade battle was beginning to darken the otherwise blue skies of the robust American economy, now in its 10th year of recovery. "A deficit is actually a good thing for the USA because we're the world's biggest economic power, and other countries are willing to hold our debt", said Hsu.
White House trade officials say the current strength of the USA economy means Washington can withstand more pain than its rivals if the battle escalates further.
About the first replacement model, Trump wants to reassert the USA as the world's most dominant economy by removing all the trade loopholes that his predecessors wrote into law for reasons of self-enrichment & Liberal-Globalist ideology and therefore return to an era of largely bilateral economic agreements that put "America First" in all respects. "To put it simply, the U.S.is opening fire on the entire world, including itself", Gao said. That means Beijing could focus on introducing bigger regulatory or tax burdens on American companies who operate in China or want to tap its growing market.
Economists say that if the back-and-forth stops there, the overall impact on both economies will be minimal even though some industries will suffer.
In 1900, tariffs accounted for about 30% of the total value of USA imports, as the country was trying to restrict imports and develop its young industrial sector.
"The progress of China's economy can not be reversed by any force".
A waiter delivers a lunch of lobster, that was imported from Boston, U.S., at a sea food restaurant in Beijing, China July 5, 2018.