China’s statement is far less specific than the immediate responses from Mexico and Canada, whose leaders ordered countermeasures on Saturday. Canadian Prime Minister Justin Trudeau said Ottawa would impose 25 percent tariffs on goods worth roughly $21 billion starting Tuesday and more later this month.

President Donald Trump has pushed into new trade law territory with an emergency sanctions law to justify punishing 25% tariffs on Canadian and Mexican imports and an extra 10% duty on Chinese goods to curb fentanyl and illegal immigration into the U.