Wang said Beijing recognizes that the US side was trying to put pressure on China.
Reacting to media reports that the higher tariffs were coming, Chinese foreign ministry spokesman Geng Shuang warned that Beijing will "definitely fight back" to defend its "lawful rights and interests".
Timing will depend on the actions of the United States, the Chinese Commerce Ministry said in a separate statement.
China has appealed to Washington to stay level-headed and "correct its attitude" following a USA threat to raise tariffs on $200 billion of Chinese goods in a dispute over technology policy.
The risk of a trade war between the United States of America and China has grabbed markets' attention recently, fuelled by headlines; Twitter quotes from Donald Trump and also because of the threat of retaliatory action from China. "Regrettably, instead of changing its harmful behavior, China has illegally retaliated against USA workers, farmers, ranchers and businesses".More news: Facebook plunges more than 24 percent on revenue miss and projected slowdown
Washington is expected to soon implement more tariffs on $21 billion in additional Chinese goods, which China has already announced it will match immediately. In this scenario, to which Moody's assigns a 60% probability, USA gross domestic product would be reduced by about 0.1 percentage point at the peak of the trade confrontation, in mid 2019. The European Commission separately is considering a draft proposal to address some of the Trump administration's concerns and offer ways to fill gaps in WTO's 23-year-old rule book.
It would represent a ramping up of pressure over Washington's trade standoff with Beijing. Furthermore, the massive, debt-financed tax cut enacted last December will only drive domestic consumption and make US assets more attractive to foreign buyers, all of which will widen the USA trade deficit much more than the limited tariffs imposed so far will shrink it.
Lighthizer added that "instead of changing its harmful behavior, China has illegally retaliated against United States workers, farmers, ranchers and businesses", in a direct reference to China's decision to apply retaliatory sanctions on USA products.
"It's very hard to see how this doesn't negatively impact all Americans in every walk of life", FDRA president and CEO Matt Priest previously told FN.
Trump's order to consider increasing the tariffs to 25 percent will extend that process into September so businesses and consumers can comment on the effect of the new level, senior administration officials said.
From left, China's President Xi Jinping and U.S. President Donald Trump shake hands on November 9, 2017, during a meeting outside the Great Hall of the People in Beijing.
The move comes after talks to avoid an escalation of the trade conflict fizzled out in June and also follows hard on the heels of a 5% fall in the value of the Renmimbi relative to the US Dollar, which was a move that many in the market say had the People's Bank of China written all over.