Manufacturers on the northern border are working to calm their customers who are concerned about the fallout from President Donald Trump’s tariffs on Canadian imports. “They want to make sure that they're insulated as much as possible. They don't have 25% factored into their price,” said Jonathon Azzopardi, CEO and president of Laval Tool, a Tecumseh (teh-KUM’-see), Ontario, company that makes molds and builds tooling for the auto, heavy truck and household construction industries. One hundred percent of what Laval Tool builds either directly or indirectly ends up in the U.S. On the other side of the Ambassador Bridge that connects Ontario and Michigan, Mel Gutherie said his Livonia-based lumber company “has gotten lots of calls from our customers that are worried about the impact of the price. And apparently, some of our competitors have raised their prices in response.” For his part, Gutherie – whose century-old family business imports about 25-30% of its materials from Canada – said he’s not all that worried. But his Canadian suppliers are. They are “freaking out,’ he said Wednesday. “And they're going to try and shove it down our throats. They're really, really mad and hurt and feeling anti-U.S. right now.” The 25% tariffs on imports from Canada and Mexico went into effect Tuesday. Trump said the tariffs are designed to force the two U.S. neighbors to step up their fight against fentanyl trafficking into America. Later Wednesday, the Republican president granted a one-month tariff exemption for U.S. automakers. Asked earlier in the day about the possibility of such a carveout for autos, Azzopardi said it “is very important,” because “the North American automotive sector is very vulnerable, very fragile.” AP Video shot by Mike Householder