Canada and Mexico are expected to intensify efforts this week to avoid punishing 25% tariffs on their exports to the U.S. in talks to persuade President Donald Trump's administration that their steps to increase border security and curb fentanyl trafficking are working ahead of a March 4 deadline.

Trump also plans to impose new tariffs to match the rates charged by other countries. Set to begin as soon as April, the tariffs could be higher than what other countries would charge as subsidies, regulatory barriers and the value added tax — which is akin to a sales tax common in Europe — would be included in the calculations.

President Donald Trump, asked on Monday whether tariffs would be placed on Canadian and Mexican goods when the deadline for a pause on such action arrives next week, reiterated his view that the United States had been mistreated by its neighbors and allies.

Mexico is weighing possible levies on Chinese imports as it pushes for a deal to avoid the 25% tariffs that President Donald Trump has threatened to impose on its goods before a deadline in early March.