US President Donald Trump has pledged to help ZTE Corp "get back into business, fast" after a US ban crippled the Chinese technology company.
Trump's comments offer a job-saving concession to Beijing ahead of high-stakes trade talks this week.
"Too many jobs in China lost. Commerce Department has been instructed to get it done!" Trump wrote on Twitter in the first of two tweets about US trade relations with China.
It said he and Chinese President Xi Jinping were working together on a solution for ZTE.
Shortly after Trump's tweet, a Democratic lawmaker questioned the move to help the Chinese company, given numerous warnings about ZTE's alleged threat to U.S. national security.
ZTE suspended its main operations after the US Commerce Department banned US companies from selling to the firm for seven years.
This comes as punishment for ZTE breaking an agreement reached after it was caught illegally shipping US goods to Iran.
White House spokeswoman Lindsay Walters confirmed that US officials were in contact with Beijing about ZTE.
She said Trump's tweet underscored the importance of "free, fair, balanced and mutually beneficial" relations between the US and China on issues involving the economy, trade and investment.
Trump expects Commerce Secretary Wilbur Ross "to exercise his independent judgment, consistent with applicable laws and regulations, to resolve the regulatory action involving ZTE based on its facts," Walters said.
US officials are preparing for talks in Washington with China's top trade official Liu He to resolve an escalating trade dispute.
Trump's proposed reversal will likely ease relations between the world's two biggest economies.
Washington and Beijing have proposed tens of billions of dollars in tariffs in recent weeks, fanning worries of a full-blown trade war that could hurt global supply chains and dent business investment plans.
In trade talks in Beijing this month, China asked the US to ease crushing sanctions on ZTE, one of the world’s largest telecommunications equipment makers, according to people with knowledge of the matter.
In a second tweet on Sunday, Trump said past US trade talks with China posed a hurdle that he predicted the two countries would overcome.
"China and the United States are working well together on trade, but past negotiations have been so one sided in favor of China, for so many years, that it is hard for them to make a deal that benefits both countries," Trump wrote on Twitter.
"But be cool, it will all work out!" he added.
It was not clear if China would accept Trump's assertion that Beijing needs to work toward a mutually beneficial outcome.
Trump's comments on ZTE could have a significant impact on shares of American optical components makers such as Acacia Communications and Oclaro, which fell when US companies were banned from exporting goods to ZTE.
ZTE paid over $2.3 billion to 211 US exporters in 2017, a senior ZTE official said on Friday.
The US government launched an investigation into ZTE after Reuters reported in 2012 the company had signed contracts to ship hardware and software worth millions of dollars to Iran from some of the best-known US technology companies.
ZTE pleaded guilty last year to conspiring to violate US sanctions by illegally shipping US goods and technology to Iran and entered into an agreement with the US government.
The ban is the result of ZTE's failure to comply with that agreement, the Commerce Department said.
ZTE relies on US companies such as Qualcomm, Intel and Alphabet's Google.
US companies are estimated to provide 25-30% of components in ZTE’s equipment, which includes smartphones and gear to build telecommunications networks.
