Lars Baumguertel wants Germany's politicians to get out their cheque books.

The 58-year-old executive runs one of the last surviving manufacturers in Gelsenkirchen, a former coal town in the industrialized Ruhr Valley.

But his company, like many in the Mittelstand — the tissue of small- and midsize manufacturers that powers Germany's economy — is reeling from high energy costs after the Ukraine war ended supplies of cheap Russian gas.