According to media reports, citing Trump administration officials, the tariff plan Trump will announce on April 2 will not be imposed on all countries in the world, but on "15% of countries".

Trump is preparing to announce the so-called "Liberation Day" tariffs on April 2, that is, reciprocal tariffs, which he sees as retaliation against tariffs and non-tariff barriers of other countries, including long-term allies.

This includes not only many core members of the Group of Twenty (G-20), but also Australia, Brazil, Canada, China, the European Union, India, Japan, South Korea, Mexico, Russia, Vietnam and other economies that play an important role in today's international trade pattern.

These countries have inextricable economic ties with the United States in the global trade system. The adjustment of the US tariff policy this time will undoubtedly have a profound impact on their trade relations with the United States.