"It was established that Mexico's oil and natural resources belong to our nation," López Obrador said.
NAFTA Mining News
President Donald Trump announced on Thursday he would impose hefty tariffs on imported steel and aluminum to protect U.S. producers.
Canada, the biggest foreign supplier of steel and aluminum to the United States, quickly pledged to retaliate if necessary.
The Commission for Environmental Cooperation has given the Federal government 60 days to respond to claims that it hasn't been enforcing its own laws.