* Top China, U.S. trade officials spoke by phone
* Bilateral relations deteriorating over multiple issues
* China falling behind key U.S. imports targets (Adds comment from spokesman for Democratic presidential nominee Biden)
By Eric Beech and Roxanne Liu
WASHINGTON/BEIJING, Aug 25 (Reuters) - Top U.S. and Chinese trade officials reaffirmed their commitment to a Phase 1 trade deal, which has seen China lagging on its obligations to buy American goods, giving a boost to financial markets on Tuesday.
The pledge was made in a telephone call between U.S. Trade Representative Robert Lighthizer, U.S. Treasury Secretary Steven Mnuchin and Chinese Vice Premier Liu He - their first formal dialogue since early May - amid concern the deal could be on shaky ground as U.S.-China ties weaken.
"Both sides see progress and are committed to taking the steps necessary to ensure the success of the agreement," the U.S. Trade Representative's office (USTR) said in a statement after what it described as a regularly scheduled call.
The call was originally expected on Aug. 15, six months after the trade deal was launched.
But President Donald Trump, who has expressed anger at China over the novel coronavirus pandemic, said last week he had postponed talks with China because "I don't want to deal with them now."
Washington and Beijing have traded sanctions and barbs over a growing list of issues including a new national security law imposed on Hong Kong, China's disputed territorial claims in the South China Sea, the coronavirus and U.S. accusations of national security threats posed by Chinese tech firms.
China's Commerce Ministry confirmed that the two sides had a "constructive dialogue" and agreed to continue pushing forward the Phase 1 trade deal's implementation.
The USTR said they "addressed steps that China has taken to effectuate structural changes" on issues including protecting intellectual property rights, removing impediments for U.S. firms in the financial services and agriculture sectors and eliminate forced technology transfers.
"The parties also discussed the significant increases in purchases of U.S. products by China as well as future actions needed to implement the agreement," it said.
News of the call helped lift global stocks and Asian currencies.
The campaign of Joe Biden, Trump's opponent in the Nov. 3 presidential election, said the trade deal had come at the cost of aggressive action against China on the coronavirus pandemic that started in that country.
"In pursuit of this extraordinarily weak trade deal that China is not even living up to, Donald Trump was outmaneuvered at every turn by Xi Jinping," said campaign spokesman Andrew Bates. "This is the most excruciatingly costly trade deal in American history."
Chinese purchases of U.S. goods are running well behind the pace needed to meet a first-year increase of $77 billion specified in the deal, according to official data.
While China recently ramped up buying of farm goods including soybeans, it is far from meeting its commitment to buy $36.5 billion worth of U.S. agricultural goods under the deal - purchases that Trump has counted on to bolster support in farm states that backed him in the 2016 election.
The United States exported just $7.274 billion in agricultural goods to China in the first half of the year, the U.S. Census Bureau said.
The U.S. comments "showed that they think we are going to keep buying from the U.S., at least before the election takes place. And we will," said one agricultural goods trader with a Chinese state-owned firm who is not authorized to speak to the media.
"We are definitely going to maintain the stance to buy as much as possible, but it is really hard to say whether the targets can be reached."
Ole Houe, director of advisory services at agriculture brokerage IKON Commodities in Sydney, said the bilateral talks could lift demand for U.S. commodities "as Trump is desperate for good news to help in the election."
Yet Sushant Gupta, research director at the Wood Mackenzie consultancy, said that while it expected China to import more American liquefied petroleum gas, propane and ethane in the second half of this year to meet petrochemical feedstock shortages, it does not expect China to increase U.S. crude imports enough to meet the target.
China bought only 5% of the targeted $25.3 billion in energy products from the United States in the first half of 2020. Chinese state-owned oil firms have booked tankers to carry at least 20 million barrels of U.S. crude for August and September. (Reporting by Eric Beech in Washington, Roxanne Liu and Tony Munroe in Beijing; Additional reporting by Naveen Thukral, Hallie Gu, Muyu Xu, Shivani Singh and Trevor Hunnicutt; Writing by Se Young Lee; Editing by Mohammad Zargham, Shri Navaratnam and Peter Cooney)
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