Company: HYAC-WT
Filing Date: 2025-07-15
Form Type: DEFA14A
Source: 0001104659-25-068092
Chunk: 11

Company: Haymaker Acquisition Corp. 4
Filing Date: 2025-07-15
Form: DEFA14A
Chunk 11
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'>[Remainder of Page Intentionally Left Blank]</div>

IN WITNESS WHEREOF, the Maker, intending
to be legally bound hereby, has caused this Note to be duly executed by the undersigned as of the day and year first above written.

| Haymaker Acquisition Corp. 4 |
| By:                          |
| Name:                        |
| Title:                       |

Accepted and Agreed:

| Haymaker Sponsor IV LLC |
| By:                     |
| Name:                   |
| Title:                  |

<div align='center'>[Signature Page to Promissory Note]</div>