He said that China also needs to make concessions on other issues, including in respect of intellectual property theft, restrictions of access to Chinese markets, compliance with global rules and standards, limiting the freedom of navigation in worldwide waters.
China and the United States are now engaged in a major trade spat that resulted from US Donald Trump introducing steel and aluminium import tariffs in March.
It was not immediately clear if the response could help bridge a wide gap between the two on trade or meet Trump's demands for change.
The back-and-forth on trade comes ahead of an expected meeting between Trump and Chinese President Xi Jinping on the sidelines of a G20 summit in Argentina at the end of November and in early December. Trump has also threatened to impose tariffs on all remaining Chinese imports, about $267 billion worth, if Beijing fails to address U.S. demands.
Malmstrom said both sides are proceeding with an understanding reached in July between President Donald Trump and European Commission President Jean-Claude Juncker that neither side will impose new tariffs while talks are underway.
While two industry sources familiar with the contents of the response said it was largely a restatement of previous Chinese commitments, it was seen as a necessary starting point for continued negotiations.
These measures were a response to the establishment by the President of the United States Donald trump duties of 25% on imports of USA steel and 10% on imports of aluminium 4 April 2018.More news: Rory McIlroy shrugs off criticism for focusing on PGA Tour in 2019
The U.S. president has repeatedly criticized Chinese practices of industrial subsidies, intellectual property theft, the lack of a level playing field for U.S. companies in China and the trade deficit.
However, the chasm between the two sides on issues such as Chinese industrial policy and intellectual property theft remained vast and any post-G20 negotiations were likely to be hard, he said.
On January 1, Washington's 10 percent tariff rate on $200 billion in Chinese goods is set to rise to 25 percent. One person said that talks between the world's two largest economies are continuing and constructive.
When those tariffs went into effect earlier in the year, Malmstrom acknowledged the European Union had targeted some iconic American imports like Harley-Davidson motorcycles and bourbon to put pressure on USA leaders.
Pence also said China must offer concessions on intellectual property theft, forced technology transfer, restricted access to Chinese markets, respect for worldwide rules and norms, and efforts to limit freedom of navigation in global waters, among other issues.
When asked about a report that China this week had presented a list of possible concessions ahead of talks, Ross said in an interview Thursday that everything leading up to the meeting is just "preparatory". "The US side should also respect China's sovereignty, security, and development interests, and respect the development path chosen by the Chinese people in line with its own national conditions".