The 50% tariffs for steel and aluminum imports take effect at 12:01 AM EDT on June 4th.

President Trump issued a proclamation yesterday evening ensuring that tariffs on aluminum and steel imports will increase from 25% ad valorem to 50% ad valorem, effective at 12:01 AM EDT on June 4th.

However, UK steel and aluminum imports will remain subject to the 25% tariff rate through July 9th, at which time the Commerce Secretary may adjust the applicable duty rates — potentially increasing them to 50% — if he determines that the UK has not complied with relevant aspects of the US-UK Economic Prosperity Deal (EPD) of May 8th, 2025.

For more details, the proclamation is available to read here.

Here are the updated entry filing instructions related to these imports:

• CBP’s updated guidance for import entries involving aluminum and aluminum-derivative products is available here.
• CBP’s updated guidance for import entries involving steel and steel-derivative products is available here.

RIM logistics, ltd. will continue to closely monitor this evolving situation and provide updates as necessary. Please reach out to your RIM representative if you have any further questions.