UK steel companies have been operating at a significant disadvantage compared to their European rivals since the beginning of 2022.
The EU has done a deal with the US, which took effect on 1 January, to allow companies to export steel to the US again without any tariffs.
The UK is yet to reach a similar agreement though it is hoping for more talks with America this month.
It means British companies still face a 25% tariff on exports to the US.
And the effect of the change is already being felt.