The USTR announced the decision shortly after China's Ministry of Commerce said Vice-Premier Liu He spoke by phone with American trade officials.
The UN could decide not to accept the case, or could send recommendations to the Brazilian government on the operation of its judicial system.
The US supergroup on PAI development said in a statement Tuesday that Baidu has in recent years involved into a diverse technology conglomerate, with ventures in autonomous driving, smart assistants and AI platform services.
The US trade deficit jumped 12.1 percent in 2017 to 6 billion. That includes 5.2 billion with China, according to the US Commerce Department. Chinese data show the surplus is much lower.
The United States on Saturday ordered the evacuation of its diplomats and citizens from Wuhan, a city in Central China where the coronavirus outbreak has hit hard.
The US tech company is devoted to transforming China's traditional printing industry.
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The UN secretary-general has been in the process of verifying with the WHO if the US meets all the conditions for its withdrawal, UN spokesman Stephane Dujarric said in a statement on Tuesday.
The US withdrew from the accord in May.
The US aviation regulator issued a statement on Sunday warning that some wing components that provide greater lift during takeoff and landing, known as leading edge slat tracks, "may not meet all applicable regulatory requirements for strength and durability".
The USDA will distribute the surplus food through nutrition assistance programs such as The Emergency Food Assistance Program (TEFAP), which is then delivered to food banks, social services and child nutrition programs.