International Trade Today is providing readers with the top stories from last week in case they were missed. All articles can be found by searching on the titles or by clicking on the hyperlinked reference number.

President Donald Trump's decision to eliminate the duty-free de minimis threshold for goods from China, issued as part of his 10% tariff hike on Chinese products, likely will face legal challenges due to the economic importance of the de minimis rule, customs attorney Lawrence Friedman told us. However, many questions remain on the precise scope of any resulting change, along with the legal theory underpinning it.

Expect upheaval as companies that previously imported goods from China under the de minimis exemption face President Donald Trump's ban via executive order on using de minimis for those goods, members of the trade community told International Trade Today.

Peter Navarro, a trade adviser to President Donald Trump who was known as a China hawk when he served in the president's first administration, said the Commerce Department will be conducting Section 232 investigations on how the steel and aluminum actions should be adjusted, and how imports of critical minerals and essential medicines "are harming [our] ability to produce" those goods.

After President Donald Trump announced his sweeping tariff action on China under the International Emergency Economic Powers Act, as well as now-delayed IEEPA tariffs on Mexico and Canada, trade lawyers told us to expect the duties to be challenged in court. Matt Nicely, lead counsel in the ongoing case against tariffs imposed on China during Trump's first administration, said in an email that a legal challenge is coming, a sentiment echoed across the trade bar.

After pulling back for the moment on threatened 25% tariffs on Canadian and Mexican imports, China is the only country facing imminent tariffs over fentanyl smuggling. The 10% tariffs will be added to most favored nation duties or, for goods subject to Section 301 duties of either 25% or 7.5%, to those duties and the underlying MFN rates.

Tariffs will be delayed on Canada, President Donald Trump decided about eight hours before the deadline, and hours after he announced Mexico wouldn't face tariffs for the next month. He also granted Canada 30 days to convince him to keep duty-free trade flowing.

President Donald Trump told reporters that his administration plans to put tariffs on oil and gas, and on items related to semiconductor chips and pharmaceuticals, and he gave more details about previously threatened tariffs on steel, aluminum and copper.

President Donald Trump told reporters that there are no concessions Mexico, Canada or China could make to avoid tariffs on Feb. 1, which he wants to use to punish them for trade deficits, fentanyl trafficking, and, in the case of Canada and Mexico, migration across their borders.

Parts of brake discs used in airplanes are "parts of an aircraft" and properly classified under Harmonized Tariff Schedule heading 8803, the Court of International Trade held on Jan. 30. Judge Mark Barnett said that since the parts are "used for no other purpose," require "no further processing prior" to their use in a brake disc and have "no other substantial commercial application," they should be classified as aircraft parts.