Even so, Chinese Premier Li said the European Union meeting was not targeted at any third party, adding that trade friction with the USA was a "bilateral" issue for China and the Trump administration to work out.
The second batch of tariffs, which aren't set to take effect until June 1, 2021, would hit the US with 10 to 50 percent in additional duties on $4.2 billion in USA imports.
The one-sentence Commerce Ministry statement gave no legal grounds for the challenge or other details.
Last week, the ministry said it would immediately file a complaint to the WTO against what it called United States unilateralism.
Mexico implemented to sets of tariffs in early June and July, imposing 7 to 25 percent duties on $3.6 billion in US imports.
Chinese economic data on Monday fanned fears that trade frictions between the two countries may soon have an impact on the world's second largest economy. China's $12.5tn economy expanded 6.7% in the second quarter compared to the same period a year earlier, in line with expectations but still signalling modest growth by recent Chinese standards.
"There is still time to prevent conflict and chaos", he added.
He added: "Generally speaking, trade frictions unilaterally started by the USA will have an impact on the economy of both countries".
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The European Union will open an annual meeting with China on Monday, looking to fend off overtures for an anti-US alliance as China seeks a European counterbalance to U.S. tariffs. Last year's imports from the United States totalled about $130 billion. That leaves about $80 billion for penalty tariffs after Beijing's previous increases either imposed or threatened on a total of $50 billion of USA goods are counted.
The trade war is not the only potential drag on the Chinese economy.
Factory output in June reached a two-year low. The country also faces a slowing property market and slower-than-expected domestic consumption. And separate USA tariffs on aluminum and steel, which hit Canada, Mexico and the European Union, have also led to higher prices on some products, as NPR reported earlier this month. China, he said, is a foe "economically... but that doesn't mean they are bad".
Though European leaders have condemned Trump's trade strategy, they also have criticized China's commercial environment for outsiders.
China announced it filed a World Trade Organisation challenge on Monday to US President Donald Trump's proposal for a tariff hike on Dollars 200 billion of Chinese goods, reacting swiftly amid deepening concern about the economic impact of their spiralling technology dispute. For the first half of this year, Chinese exports to the United States were 13.6% higher.
"It is the common duty of Europe and China, but also America and Russian Federation, not to destroy (the global trade order) but to improve it, not to start trade wars which turned into hot conflicts so often in our history", EU Council President Donald Tusk said in Beijing.
"The architecture of the world is changing before our very eyes and it is our common responsibility to make it a change for the better", Tusk said.