Tariff activity on June 18, 2026, was marked by a high volume of changes, with the vast majority concentrated in the iron and steel sectors. Over 140 of the day's 169 detected updates affected goods in HS chapters 72 and 73. Despite this intense focus, regulators did not introduce any new anti-dumping duties, countervailing duties, or other trade defence measures, indicating the day was characterized by widespread administrative adjustments to customs duties and preferential rates.
The themes
The defining theme on June 18 was a large-scale update affecting the iron and steel sectors. More than 140 change records were logged against products in HS chapters 72 (Iron and steel) and 73 (Articles of iron or steel), accounting for the vast majority of the day's 169 detected changes.
This activity consisted primarily of adjustments to customs duties and preferential rates. The absence of any new trade defence measures suggests the updates were administrative or structural in nature, rather than a shift in trade policy. Beyond steel, a smaller number of changes were seen in electrical machinery and equipment (Chapter 85).
Headline items
No major headline measures—such as new anti-dumping or countervailing duties, safeguards, or significant new quotas—were loaded into the tariff on June 18.
Coming into force
A total of 46 measures took effect on June 18. Among them were minor preferential rate updates, including a 0% duty rate for certain grapes (HS 0806101090) imported from Turkey.
Regulators also loaded four new measures with future effective dates, though none were individually notable.
What to watch
The sheer volume of adjustments in the iron and steel chapters, while not driven by new trade defence actions, warrants close review by firms operating in these sectors. Such widespread changes can alter landed costs and compliance obligations, making it critical to verify the specific tariff lines for affected products.