China made the statement after talks with a us delegation led by Commerce Secretary in Beijing on Saturday and Sunday. "The attitude of the Chinese side remains consistent".
Ross said US and Chinese officials have discussed specific American export items Beijing might buy as part of its pledge to narrow its trade surplus with the United States.
"China is willing to increase imports from other countries, including the United States, to satisfy the Chinese people's increasing consumption needs and the country's high-quality economic growth", the statement said.
"If the USA implements trade sanctions, including raising tariffs, then all the economic and trade outcomes negotiated by the two sides will not take effect", said a statement carried by the official Xinhua news agency.
This week, the White House renewed a threat to impose an additional 25 per cent tariff on Chinese high-tech goods in response to complaints Beijing steals or pressures companies to hand over technology.
China has also threatened to hit back with tit-for-tat tariffs on tens of billions of dollars in USA goods.
China has warned that all trade talks between Beijing and Washington will be void if the USA sets up trade sanctions.
He said Washington would use its move on Tuesday to slap punitive tariffs on Chinese imports as a bargaining chip.
There was no immediate response from the U.S. delegation or from Ross himself.More news: Memorial Tournament -- Tiger Woods cards 4-under 68 in third round
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Mr Ross and Mr Liu held a working dinner on Saturday ahead of their talks.
"Tariffs and expanding exports - the United States can't have both", it said.
"I want to be clear, this isn't just about [China] buying more goods, this is about structural changes", Mnuchin said.
"Our meetings so far have been friendly and frank, and covered some useful topics about specific export items", said Ross at the opening of Sunday's meeting. "Our set pace will not change", the statement said. China pledged to take steps to "substantially" reduce the USA trade deficit, including by buying more American farm goods and energy, though it didn't commit to a dollar amount.
China's exports have mushroomed since it joined the World Trade Organization in 2001, making it the world's second-largest economy. Critics say that the deal risks making the US a supplier of raw materials to fuel China's expansion and plans to dominate high-tech manufacturing.
On Sunday, Chinese media reports framed the lack of concrete outcomes in the latest round of talks as Beijing's way of driving home the point that no substantial discussions can take place when the threat of tariffs looms large.
While many countries share US frustration with Chinese trade and economic practices, critics of USA policy under Trump have warned that Washington risks alienating the European Union, Canada and Mexico with 25 percent tariffs on steel and 10 percent on aluminum.
Other officials and technical experts from the Department of Commerce, Department of Treasury, United States Trade Representative, Department of Agriculture, and Department of Energy also took part, the White House said. But the International Monetary Fund has warned that a trade war could threaten the recovery, and policy makers are contending with a growing list of geopolitical risks, from a political crisis in Italy to the rocky progress of peace talks with North Korea. Germany is also hoping its steel exports to the USA will be exempted from sanctions.