President Donald Trump threatened duties of 30% on products from Mexico and the European Union in two letters he released on social media on Saturday, adding to the global trade war that he’s sparked since taking office in January.

President Donald Trump unleashed his latest tariff ultimatums, declaring a 30% rate for Mexico and the European Union, as his trade agenda continues to keep allies off balance and inject uncertainty into global financial markets.

The president announced the tariffs Saturday on two of the United States’ biggest trade partners in letters posted to his social media account.

President Trump announced on social media that he is levying 30% tariffs against Mexico and the European Union. They are set to begin on August 1.

European leaders had been trying to negotiate more favorable terms for months. They may retaliate with tariffs of their own.

Trump has spent the past several days sending letters to various world leaders about new tariffs the United States would be imposing on them.

The United States will impose a 30% tariff on goods imported from the European Union and Mexico starting August 1, as announced by President Donald Trump. Experts warn of potential trade conflict, especially if retaliatory measures are taken by the EU,

Investors awaited tariff news between the U.S. and European Union on Friday that could add a potentially volatile development to the end of a week in which President Donald Trump reignited his global trade war.

Cars and tariff levels on agriculture have emerged as key sticking points between the European Union and the US as the two sides work toward a provisional trade agreement in the coming days, according to people familiar with the matter.

Trump issued new tariff announcements for a number of countries, including Japan, South Korea, Canada and Brazil

President Donald Trump has posted two new letters on his social media platform announcing tariffs on the European Union and Mexico.