Gov. Janet Mills is calling on President Donald Trump to stop pursuing tariffs against Mexico and Canada, taking the step after the president delayed tariffs against two of the nation’s largest trading partners.

Trump on Thursday postponed 25% tariffs on many imports from Mexico and some imports from Canada for a month amid widespread fears of the economic fallout from a broader trade war.

The tariffs, whenever they may come, would increase prices for Mainers and businesses operating within the state “and cause havoc to our economy,” Mills reiterated in a written statement Thursday evening.

“While today’s temporary tariff reprieves are welcome, they are creating significant economic uncertainty,” Mills said. “I urge the president to stop his pursuit of these unnecessary tariffs and focus on fulfilling his campaign commitment to lower the prices of eggs, bread, heat, housing and cars.”

Maine, like much of the country, started the week by bracing for the tariffs’ impact, which took effect briefly on Tuesday.

Maine deals heavily with Canada, including $6 billion in goods that were traded last year, Mills’ office said. Maine also depends more on oil for heat than any other state, with more than 80% of the state’s fuel and gasoline coming from its northern neighbor.

Imports from Mexico that comply with the 2020 USMCA trade pact would be excluded from the 25% tariffs for a month, according to the orders signed by Trump. Auto-related imports from Canada that comply with the trade deal would also avoid the 25% tariffs for a month, while the potash that U.S. farmers import from Canada would be tariffed at 10%, the same rate at which Trump wants to tariff Canadian energy products.

Roughly 62% of imports from Canada would likely still face the new tariffs because they’re not USMCA compliant, according to a White House official who insisted on anonymity to preview the orders on a call with reporters. Half of imports from Mexico that are not USCMA compliant would also be taxed under the orders being signed by Trump, the official said.

Concerns over the tariffs’ impacts have already roiled the stock market, which saw major drops this week. The S&P 500 stock index has fallen below where it was before Trump was elected.

During his speech before a joint session of Congress Tuesday night, Trump appeared to acknowledge that there could be some pain associated with the tariffs.

“There’ll be a little disturbance, but we’re OK with that. It won’t be much,” he said.

Yet most economists expect the import duties to send prices higher, slow the economy and potentially cost jobs.

This report contains material from The Associated Press.