The US has a massive trade deficit with China.
The previous round of talks in Washington saw China pledging "significant increase" in its purchases of United States agricultural goods.
It says the two sides have made concrete progress on many areas but the details are left for final approval. "The Chinese side has realised that the U.S. has just delayed its trade actions rather than giving them up - but Beijing didn't expect a change of attitude so quickly".
"China is willing to increase imports from all countries in the world including the United States", the statement said. The U.S. says China's outsized production artificially depresses global metals prices, endangering U.S. national security by undermining its domestic steel industry. "Our set pace will not change", it said.
But China warned all the results were premised on "not fighting a trade war".
China said Sunday it wouldn't step up its purchases of American products if President Donald Trump goes ahead with his threat to tax billions of dollars' worth of Chinese imports. China has also threatened to hit back with tit-for-tat tariffs on tens of billions of dollars in U.S. goods.
"Tariffs and expanding exports - the United States can't have both", it said.
Ross and the large American delegation had dinner Saturday evening with their Chinese hosts.
Washington's negotiating stance in the trade talks with Beijing has shifted as Trump's team of hardliners and more mainstream advisors compete to push their views.
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"Our meetings so far have been friendly and frank, and covered some useful topics about specific export items", Ross said, in brief comments before reporters.
Ross gave no details at the start of his meeting Sunday with China's top economic official, Vice Premier Liu He. Treasury Secretary Steven Mnuchin, who announced the tariff truce with China, said at the G7 summit in Canada that the United States was pushing for "structural changes" to the Chinese economy.
U.S. tensions with China had eased after Beijing promised on May 19 to "significantly increase" purchases of farm goods, energy and other products and services following the last round of talks in Washington. "This is about structural changes", Mnuchin said Saturday.
After a three-day meeting of finance ministers from the G7 industrial nations that ended Saturday in Canada, Canadian Finance Minister Bill Morneau issued a summary saying the other six members want Trump to hear their message of "concern and disappointment" over the USA trade actions.
It's when countries attack each other's trade with taxes and quotas.
There was also anger at the G7 meeting of finance ministers after last weekend's decision by the USA to impose 25% steel tariffs and 10% aluminum duty on the EU, Canada and Mexico.
The U.S. team had also wanted to secure greater intellectual property protection and an end to Chinese subsidies that have contributed to overproduction of steel and aluminum.
That might alienate allies who share complaints about Chinese technology policy and a flood of low-cost steel, aluminium and other exports they say are the result of improper subsidies and hurt foreign competitors.