"This kind of abuse of safeguard measures not only hurts the legitimate rights and interests of China, but also affects the seriousness and authority of WTO rules", the spokesperson said. If those fail, the case moves to a panel of experts who can decide whether the trade controls are improper.
Following that, Washington imposed its first round of 25 tariffs on $34 billion of Chinese goods on July 6 in response to complains Beijing steals or pressures foreign companies to hand over technology.
Both the safeguard and the subsidies "have seriously damaged China's trade interests", said the spokesperson, before adding: "We urge the USA to take concrete actions, respect the rules of the WTO, and abandon the wrong practices so that the relevant trade can be restored to normal track".
China responded two days later by proposing tariffs ranging from 5 percent to 25 percent on 5,207 USA goods worth 60 billion dollars. Beijing says it will retaliate.
According to a poll by Reuters, Chinese residents at the street level are largely unbothered by US President Trump's bluster and swapping of trade war rhetoric with China, though some mixed feelings on exactly how China should respond to the US. The president has also said the tariffs have been created to promote better trade deals.
Fiscalía salvadoreña incauta propiedades de expresidente Saca
Solo por evasión y elusión de impuestos no llegan a las arcas del Estado unos 2.000 millones de dólares, casi la mitad de los Presupuestos de la Nación.
The Trump administration is due to impose similar increases on an additional $16 billion of Chinese imports on Tuesday.
The Trump team argues the tariffs are giving them leverage in trade negotiations and any short-term pain from the tariffs will eventually be worth it, but they are yet to see results. Trump announced earlier this year that he would impose global tariffs of 25% on imported steel and 10% on aluminum, citing national security concerns. So far, the Trump administration has declined to give China the label, saying that while China manipulated its currency in the past, that problem had dissipated for now. Neither deal has been finalized on paper yet, let alone signed by both sides.
The Trump administration is engaged in trade clashes on multiple fronts, as American negotiators seek to wrap up talks over the North American Free Trade Agreement with Canada and Mexico and hold additional talks with European and Japanese counterparts in coming months.
Information for this article was contributed by Joe McDonald of The Associated Press and by Heather Long of The Washington Post.