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.

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.

A 17% tariff on most fresh tomato imports from Mexico to the United States was expected to take effect on Monday, July 14.

U.S. President Donald Trump's announcement of a proposed 50% tariff on copper imports has raised concerns in Chile and Peru, which together account for nearly 40% of global copper production.

Antidumping duties are calculated to measure the percentage by which Mexican tomatoes have been sold in the United States at "unfair prices," the Commerce Department said in its statement. President Donald Trump on Saturday had separately threatened to impose a 30% tariff on imports from Mexico starting on August 1,