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The new menace comes after Beijing vowed to retaliate towards US tariffs on $50bn value of Chinese items
US President Donald Trump has threatened to impose tariffs on an additional $200bn (£151bn) of Chinese items in a rising commerce row.
Mr Trump mentioned the 10% tariffs would come into impact if China "refuses to change its practices".
The transfer could be a main escalation of the dispute, which threatens to take the United States and China into a commerce battle.
China responded by accusing the United States of "blackmail" and saying it will match any additional tariffs.
Mr Trump insists that China has been unfairly benefitting from a commerce imbalance with the United States for years.
Last week, he introduced the United States would impose 25% tariffs on $50bn value of Chinese items.
Beijing responded by saying it will hit 659 US merchandise value $50bntogether with agricultural merchandise, automobiles and marine merchandisewith a comparable tax.
Mr Trump mentioned in a assertion on Monday night time that by retaliating, China was "threatening United States companies, workers, and farmers who have done nothing wrong".
Asian markets sunk on Tuesday in response to the newest information. Stock markets had already fallen on Monday amid fears of a additional deterioration in US-China commerce relations
In his assertion, the United States president acknowledged that he had requested his commerce advisers to establish additional Chinese merchandise on which to impose new tariffs.
How hogs and Harleys turned weapons in a looming commerce battle.
"These tariffs will go into effect if China refuses to change its practices, and also if it insists on going forward with the new tariffs that it has recently announced," he mentioned.
"If China increases its tariffs yet again, we will meet that action by pursuing additional tariffs on another $200 billion of goods. The trade relationship between the United States and China must be much more equitable."
China's commerce ministry responded swiftly, saying: "If the United States acts irrationally and issues a list, China will have no choice but to take comprehensive measures of a corresponding number and quality and take strong, powerful countermeasures."
the United States tariffs already introduced have an effect on greater than 800 Chinese merchandise value $34bn in annual commerce. They are because of come into impact on 6 July.
The product traces vary from plane tyres to generators and industrial dishwashers.
The White House mentioned it will seek the advice of on tariffs on the additional $16bn of merchandise, and would apply these later.
the United States desires China to cease practices that allegedly encourage switch of mental propertydesign and product conceptsto Chinese corporations, comparable to necessities that overseas corporations share possession with native companions to entry the Chinese market.
However, many economists and companies in the United States say the tariffs are more likely to harm among the sectors the administration is making an attempt to guard, which rely on China for components or meeting.
the United States introduced plans for tariffs this spring, after an investigation into China's mental property practices.