"To protect its legitimate rights and interests and order in global free trade, China is left with no choice but to retaliate simultaneously", the commerce ministry said in a brief statement, without specifying what action it would take.
"Once again, I urge China's leaders to take swift action to end their country's unfair trade practices", Trump said.
China will levy tariffs on about $US60 billion ($A83 billion) worth of U.S. goods in retaliation for the latest round of USA tariffs on Chinese products, as previously planned, but has reduced the level of tariffs that it will collect on the products.
The US President also said he had great respect for Chinese President Xi Jinping, but the US goods trade deficit with China was too large and "we can't do that any more".
Once the new round of tariffs takes effect on September 24, punitive duties will be in place on roughly half of the products the U.S. buys from China - its largest source of imported merchandise.
The administration's proposal for the tariffs on US$200 billion (S$247 billion) of products drew protest from technology companies earlier this year, but the final list of taxed devices described by the official avoids many big consumer brand names and products.
"Our concern with these tariffs is that the USA will be hardest hit, and that will result in lower US growth and competitiveness and higher prices for USA consumers", Apple said earlier in a letter commenting on the proposal.
"Tariffs are a tax on American families, period", said Hun Quach, RILA's vice president for global trade.
The latest escalation of the US-China trade clash had all but dismantled the platform for the proposed negotiations before they could even begin.
The new tariffs - likely to be at 10 per cent - will apply to more than 1,000 products including smartphones, toys and TVs, which in turn will lead to higher prices for American consumers.
Rep. Kevin Brady (R-TX, chair of the House Ways and Means committee): "Any time tariffs are imposed I worry that Americans will be forced to pay extra costs - in this case on almost half of United States imports from China", Brady said.
United Kingdom repeats assertion that Russian Federation is lying
Britain has said the attack received approval "at a senior level of the Russian state", an accusation Moscow has fiercely denied. Their second trip to Salisbury took nearly four hours on Sunday, and they stayed for about the same length of time.
Officials have said they want to shield consumer goods from the taxes as much as possible.
"The Chinese side reiterates that the aim of imposing these tariffs is to prevent trade frictions from escalating and it is a measure of last resort against American unilateralism and trade protectionism", the Chinese state television report said.
The globalists represented by Treasury Secretary Steven Mnuchin are finding it increasingly hard to influence the administration's trade policy.
Beijing has retaliated in kind, but some analysts and American businesses are concerned it could resort to other measures such as pressuring United States companies operating in China.
"We stand ready to negotiate with China anytime, if they are willing to engage in serious talks", said Larry Kudlow, the White House economic adviser, said earlier in the day at the Economic Club of NY.
At the root of the trade war are USA complaints about China's plans to try to overtake US technological supremacy.
China, he said, has had many opportunities to fully address U.S. concerns.
"The additional $267 billion in tariffs is expected to cover all Chinese imports to the United States".
"They also know that I am the one that knows how to stop it". Retaliatory tariffs, whether 10 percent or 25 percent, are bad policy.
President Donald Trump said he would make an announcement after financial markets close.
Still, he added that "the uncertainty around the issue and the potential for additional tariffs is affecting the market, and we're beginning to see some of the economic activity in China starting to moderate as a result of that".
"Contrary to views in Washington, China can - and will - dig its heels in and we are not optimistic about the prospect for a resolution in the short term", said Zarit of the American Chamber of Commerce.