Mexican President Claudia Sheinbaum on Tuesday said Mexico will take action if an agreement with Washington regarding new tariffs is not reached by the August 1 deadline set by her U.S. counterpart Donald Trump.

President Donald Trump expanded his tariff threats over the weekend, calling for 30% levies on two of America’s largest trading partners: the European Union and Mexico.

President Donald Trump unveiled the new duty rates, set to begin Aug. 1, in separate letters shared on social media Saturday morning.

Prime Minister Mark Carney on Wednesday said Canada will introduce a tariff rate quota for countries with which it has free trade agreements, excluding the United States, to protect the domestic steel industry.

Almost half — 49% — of Ontario automotive businesses have paused or canceled investments because of the trade tensions.

In the wake of new tariffs, the San Diego Regional Chamber of Commerce announced Monday that its senior leadership met with U.S. Ambassador to Mexico Ronald Johnson and emphasized the importance of a stable trade relationship between Mexico and the United States.

The move comes amid a separate push by President Trump to increase tariffs on dozens of U.S. trading partners, including Mexico, which was told over the weekend to expect 30% tariffs starting in August.

The European Union could target Boeing and whiskey-maker Brown-Forman under its plans for retaliatory tariffs if the bloc can’t reach a trade deal with the U.S.