Florian Fuchs
Manager Investor Relations

Yes. Thank you, Heidi, and warm welcome also from my side to the Q1 question-and-answer session. With me at the table, we got Dr. Matthias Zieschang, our CFO. And as always, with our presentations, please keep our cautionary language in mind. Risks and opportunities may arise with forward-looking statements. [Operator Instructions] Having said this and without further ado, I'd like to hand over to Heidi to commence with the question-and-answer session. Thank you.

Operator

[Operator Instructions] The first question comes from the line of Elodie Rall from JPMorgan.

Elodie Rall
JPMorgan Chase & Co, Research Division

Well, I'll try to limit to two then. So okay. On the presentation, you discussed a lot the jet supply -- jet fuel supply potential constraints, and that is clearly a downside risk to your guidance. So maybe could you elaborate the conversation that you have with the German government and on reports that we've seen on disruption to supply through the NATO pipeline and maybe comment on where the refinery is supplying, the pipeline source, where they source their crude from? That would be quite helpful to understand the risk around the jet fuel supply issue.