"Great reviews on the new USMCA. Thank you! Mexico and Canada will be wonderful partners in trade (and more) long into the future," Trump said via Twitter.
The trade deal was announced late Sunday after talks between US Trade Representative Robert Lighthizer and Canadian Foreign Minister Chrystia Freeland were finalized.
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Trump said the three countries, which has been trying to renegotiate the North American Free Trade Agreement (NAFTA), would now be able to open their markets and partner more effectively.
The new deal introduces changes to the intellectual property rights area, gives US farmers more access to Canadian and Mexican markets, and requires the automotive producers to increase using car parts from North America as well as use high-wage manufacturing labor and pay employees at least $16 per hour.