The KfW, which together with its subsidiaries DEG, KfW IPEX-Bank and FuB forms the KfW Bankengruppe, is a German state-owned investment and development bank, based in Frankfurt. From Wikipedia
The Bundesrechnungshof investigates federal and state guarantees for Northvolt's Heide gigafactory, while SPD accuses Schleswig-Holstein of ignoring risk warnings.