And as China has vowed to retaliate further, Trump has threatened to target all US$500 billion in goods the United States imports from the Asian giant.
"Here we are three months later and if anything during that time the hawk's position has been consolidated because we drove over the cliff and discovered our vehicle can fly with the USA economy still doing fairly well and President Trump still popular among Republicans", said Scott Kennedy, an expert on U.S.
Economists reckon that every $100 billion in imports hit by tariffs would reduce global trade by around 0.5 per cent.
And that is on top of United States tariffs on Chinese appliances and solar panels, as well as steel and aluminum from around the world - a total of 10,000 products.
John Neuffer, president of the Semiconductor Industry Association, said the tariffs would hurt USA companies more than Chinese firms, since most semiconductor products imported from China started out as chips fabricated in the United States.
The latest action completes the first round of $50 billion in products that President Donald Trump targeted, with Beijing striking back at American products dollar-for-dollar at each step.
"Instead, these tariffs threaten to increase costs for American families and destroy the livelihoods of USA workers", Gold said.
The administration already was forced to announce a $12bn aid programme for farmers hurt by the trade wars, as United States agricultural products, like soybeans, were an easy target for China and others.
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This is the second salvo in the countries' trade war, after last month Washington imposed tariffs on 34 billion dollars' worth of Chinese goods, with Beijing retaliating with duties on the same amount of USA products.
Chinese authorities have said they will take "comprehensive measures", which companies worry could mean targeting operations of American businesses in China for disruption.
Implementation of the latest 25 percent tariffs on Thursday did not derail the talks, led by U.S. Treasury Under Secretary David Malpass and Chinese Commerce Vice Minister Wang Shouwen. Previous negotiations failed to produce any lasting deals, and President Donald Trump has suggested the current talks may not be much different.
The dispute centres around Mr Trump's demand for Beijing to drop its protectionist economic stance and buy more United States goods.
It added that it will file a complaint with the World Trade Organization (WTO).
Though it is too early for trade damage to show up in much economic data as yet, tariffs are beginning to increase costs for consumers and businesses on both sides of the Pacific, forcing companies to adjust their supply chains and pricing, with some US firms looking to decrease their reliance on China.
Chinese Ministry of Foreign Affairs spokesman Lu Kang (陸慷) declined to give details of the Washington talks.
Some commentators also struck a note of caution for China in taking tit-for-tat approach. In response, the Chinese delegation could this week offer a private pledge not to let the currency weaken further as long as negotiations continue, said Derek Scissors, a China expert at the American Enterprise Institute in Washington.
China's list of 333 USA product categories hit with duties includes coal, copper scrap, fuel, steel products, buses and medical equipment.