Overall, China's April trade balance was a positive $28.78 billion, topping predictions of $24.7 billion.
Trump has regularly said current trade practices are unfair and hurting American companies and jobs, and has threatened to impose import tariffs to the tune of $150 billion on Chinese goods.
Beijing and Washington are trying to avoid a trade war between the world's two largest economies.
Data released Tuesday show exports jumped 21.5 percent from the same month the year before, bouncing back from a contraction the previous month thanks to resurgent global demand. They included cutting the United States trade deficit with China by $200 billion by the end of 2020 and halting Chinese subsidies for advanced technology industries.
The visit by vice-premier Liu He - considered President Xi Jinping's right-hand man on economic issues - comes after he led talks in Beijing last week with a high-level United States delegation that made little headway in resolving the standoff.
"China's top economic advisor, the Vice Premier, will be coming here next week to continue the discussions with the President's economic team", said Sanders who emphasized the "great relationship" between President Trump and Chinese President Xi Jinping.
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"We are working on something that we think will be great for everybody", she told reporters. President Donald Trump's demands that China slash its surplus with the USA have become a cornerstone of his combative economic policy.
Trump directed Trade Representative Lighthizer in early April to look at the potential of imposing $50 billion in tariffs on Chinese imports.
China's trade surplus with the US totaled $80.4 billion in January-April, up from $50 billion in the same period previous year.
Imports in April also showed robust growth of 22% from past year, up to USD171.7 billion.
However, last week China said "big differences" remained between the two sides after the first round of talks.
Trump has threatened to impose tariffs on as much as Dollars 150 billion in Chinese goods, duties that can be imposed after a public comment period ends on May 22.