The announced tariff refund by the Trump administration of 175 billion dollars could exclude German steel producers such as Salzgitter AG from reimbursements, even though they have had to pay considerable additional tariffs on US exports in recent years. For building material manufacturers with US business, this intensifies calculation uncertainty for long steel, reinforcing steel, and structural profiles. The unclear reimbursement criteria make it particularly difficult to determine prices for multi-year supply contracts in the infrastructure sector, where German quality steels according to ASTM standards are in demand.