The companies said they had entered into an agreement with the U.S. government to alleviate any national security concerns.

US Commerce Secretary Howard Lutnick has provided details on the scope of the government's golden share in US Steel after its acquired by Japan's Nippon Steel.

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.

The Japanese company secured its much-wanted prize late last week when President Trump approved the $14.1 billion purchase of US Steel

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,