China, Canada and European Union respond to U.S. tariffs on steel and aluminum.

China, Canada and the European Union im­posed new retaliatory tariffs on U.S. products last week in response to the Trump administration’s new 25% duties on all steel and aluminum imports. 

The EU responded with tariffs on $28 billion in U.S. products, potentially including poultry, beef and soybeans, starting April 1. Soybeans represent the top U.S. ag product exported to...