Photo/Illutration U.S. President Donald Trump, left, signs a cap for Ryosei Akazawa, the minister of economic revitalization, in a meeting at the White House on April 16. (Provided by the White House)

Japan's tariff negotiator Ryosei Akazawa is making final arrangements to visit the United States from April 30 to hold a second round of talks with his counterpart, two sources familiar with the matter said on Thursday.

Public broadcaster NHK reported, without citing sources, that the talks would take place on May 1 Japan time if arrangements can be made with the U.S. side.

NHK also reported earlier Thursday that the Trump administration had told Japan's trade delegation that it could not give Japan special treatment regarding its tariff measures, in response to Tokyo's strong demand for a review during the ministerial negotiations held earlier this month.

During the talks, Akazawa demanded a review of tariffs on automobiles and steel, but the American side said it "cannot give special treatment to Japan alone," the report said citing multiple government sources.

Akazawa told reporters after the first meeting he strongly requested a revocation of the tariffs.

Akazawa intends to ask for a review again in the next negotiations and confirm it as a subject of discussion, the report said.