That is, from much of the industrialized world. But not China.
From the White House:
The tariffs on steel and aluminum imports from the following countries are suspended until May 1, 2018, pending discussions of satisfactory long-term alternative means to address the threatened impairment to U.S. national security:
the member countries of the European Union; and
By May 1, 2018, the President will decide whether to continue to exempt these countries from the tariffs, based on the status of the discussions. The European Union will negotiate on behalf of its member countries.