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.

With new tariffs on tomatoes from Mexico falling during Maryland’s tomato season, farmers are hopeful that more people will make the switch to local produce.

Over the past 30 years, Florida tomato growers’ share of the U.S. tomato market has shrunk from 80% to 20%, as Mexico-grown tomatoes become more common on shelves, Arizona State University professor Tim Richards said. Richards predicts the price of tomatoes will increase by about 8.5%, half the amount of the 17% tariff.

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.

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.

The U.S. Department of Commerce on Monday imposed an immediate 17.09% tariff on tomatoes imported into this country from Mexico. Most of the tomatoes sold in Arizona come from Mexico.