FILE PHOTO: U.S. Commerce Secretary Wilbur Ross attends a cabinet meeting at the White House in Washington, U.S., July 18, 2018. REUTERS/Leah Millis/File Photo

WASHINGTON (Reuters) - It is up to Beijing to take the next steps on trade talks, U.S. Commerce Secretary Wilbur Ross said on Tuesday as China vowed to retaliate after U.S. President Donald Trump imposed initial duties on $200 billion worth of Chinese goods.

“Our purpose is to have constructive negotiations with the Chinese to resolve the fundamental issues. So the question about whether or when to have a discussion is very importantly in their ballpark,” Ross said in a television interview on CNBC.