In earlier talks, Japan offered to increase imports of US agricultural goods and review its “non-tariff trade barriers” to American car sales to respond to the concerns of the Trump administration. In addition, the government is mulling to collaborate with the US to secure supply chains of rare earth magnets and semiconductors.

SEOUL — For corporate Japan, America’s treatment of its steel industry has been one blow after another. First, there were the objections to Nippon Steel’s takeover of its U.S. rival ...

The deadline for consummating the deal between U.S. Steel and Japan-based Nippon Steel is less than a week-and-a-half away, but hardly any more details of it have been made public since Donald Trump’s triumphal visit to West Mifflin late last month.

US President Donald Trump says the government has a golden share in US Steel that he described as under his control. Such a stake could let the president veto some decisions by Japanese firm Nippon Steel after its planned takeover of the American steelmaker.

For Japan and many other countries, the vulnerability that comes with relying on U.S. markets has become startlingly clear. First came tariffs on Canada, China, and Mexico. Then, in February, the administration introduced a 25 percent tariff on steel and aluminum (this week,