Last year, US President Donald Trump imposed tariff hikes of up to 25 per cent on Dollars 250 billion of Chinese goods.
"The Chinese side immediately sent military vessels and aircraft to conduct verification and identification on the USA ship and warned it to leave", Lu told the briefing.
Chinese Foreign Ministry spokesperson Lu Kang confirmed during a press conference later that day that the US sent a vessel into the area "without permission from the Chinese side". But economists say that is too little time to settle all the disputes that bedevil U.S.
Monday's events also came as China and the US began talks in an attempt to settle a trade war that has cost both countries billions of dollars.
"I think that gives them a great incentive to negotiate."Asked about his presence on Tuesday, Lu from the foreign ministry said it wasn't surprising for Liu to be there.
Liu led a previous round of talks in Washington past year that ended in failure. Key issues to be discussed include USA demands over trade imbalances, market access, and protection of intellectual property. They complain China's companies are treated unfairly in national security reviews of proposed corporate acquisitions, though nearly all deals are approved unchanged.
China - Pyongyang's sole diplomatic ally and main source of trade - said it would not use Kim's visit as a bargaining chip in the U.S. trade talks. He added the USA has rebuilt China and he didn't believe they were ready to negotiate yet.
The government shutdown could delay your tax refund
The IRS is already going to have to update its contingency plan now that the shutdown has lasted longer than five business days. With little or no income-tax liability, these taxpayers often use a sizable refund to help pay down debt, the publication says.
Without a resolution, punitive USA duty rates on $200 billion in Chinese goods are due to rise to 25 percent from 10 percent on March 2.
The US and its allies periodically send planes and warships through the area, which is claimed by China, to signal to Beijing their right under worldwide law to pass through the waters. Apple Inc. cut its revenue outlook last week as sales of the iPhone were slower than expected in China, while data on factory activity and retail sales in the Asian nation were also weak. "We have firm confidence in the strong long-term fundamentals of the Chinese economy".
US stock-index futures climbed during the Asia trading day with March contracts on the S&P 500 Index gaining as much as 0.5 per cent.
A USA guided-missile destroyer sailed near disputed islands in the South China Sea in what China called a "provocation" as U.S. officials joined talks in Beijing during a truce in a bitter trade war. The two sides have shown signs of common ground in the past year, only for progress to stall.
The S&P 500 Index has fallen about 8 per cent since Trump and Chinese President Xi Jinping agreed on a 90-day truce at a December 1 meeting in Argentina. China has retaliated with tariffs of its own.
China's foreign ministry on Monday confirmed that Wang would deliver a keynote speech at Davos, though didn't confirm any plans for him to meet Trump.
Deputy U.S. Trade Representative Jeffrey Gerrish is leading a U.S. working team for two days of meetings in Beijing.