Haymaker Acquisition Corp. 4 Watch

from 8-K 5 pages Promissory Note

from 8-K 2 pages Forest Crest Holdings, LLC 501 Madison Avenue, Floor 5 New York, Ny 10022 Re: Advisory Services Agreement Ladies and Gentlemen

from 8-K 2 pages Mistral Capital Management LLC 501 Madison Avenue, Floor 5 New York, Ny 10022 Re: Administrative Services Agreement Ladies and Gentlemen

from 8-K 7 pages Haymaker Acquisition Corp. 4 501 Madison Avenue, Floor 5 New York, Ny 10022 Haymaker Acquisition Corp. 4 Re: Initial Public Offering Ladies and Gentlemen

from 8-K 8 pages Unit Subscription Agreement

from 8-K 14 pages Registration Rights Agreement

from 8-K 13 pages Investment Management Trust Agreement

from S-1/A 3 pages Forest Crest Holdings, LLC 501 Madison Avenue, Floor 5 New York, Ny 10022 Re: Advisory Services Agreement Ladies and Gentlemen

from S-1/A 13 pages Form of Indemnity Agreement

from S-1/A 8 pages Unit Subscription Agreement

from S-1/A 14 pages Registration Rights Agreement

from S-1/A 13 pages Investment Management Trust Agreement

from S-1/A 7 pages Haymaker Acquisition Corp. 4 501 Madison Avenue, Floor 5 New York, Ny 10022 Haymaker Acquisition Corp. 4 Re: Initial Public Offering Ladies and Gentlemen

from S-1 2 pages Mistral Capital Management Llc501 Madison Avenue, Floor 5 New York, Ny 10022 Re: Administrative Services Agreement Ladies and Gentlemen

from S-1 9 pages Haymaker Acquisition Corp. IV, a Cayman Islands Exempted Company (The “Company”), Is Pleased to Accept the Offer Haymaker Sponsor IV LLC, a Delaware Limited Liability Company, (The “Subscriber” or “You”) Has Made to Subscribe for 5,750,000 Class B Ordinary Shares of the Company (The “Shares”), $0.0001 Par Value Per Share (The “Class B Ordinary Shares”), Up to 750,000 of Which Are Subject to Complete or Partial Forfeiture by You if the Underwriters of the Company’s Initial Public Offering (“Ipo”) of Units (“Units”) Do Not Fully Exercise Their Over-Allotment Option (The “Over-Allotment Option”). for the Purposes of This Agreement, References to “Ordinary Shares” Are To, Collectively, the Class B Ordinary Shares and the Company’s Class a Ordinary Shares, $0.0001 Par Value Per Share (The “Class a Ordinary Shares”). Pursuant to the Company’s Memorandum and Articles of Association, as Amended to the Date Hereof (The “Articles”), Unless Otherwise Provided in the Definitive Agreement for the Company’s Initial Business Combination, Class B Ordinary Shares Will Convert Into Class a Ordinary Shares on a One-For-One Basis, Subject to Adjustment, Upon the Terms and Conditions Set Forth in the Articles. Unless the Context Otherwise Requires, as Used Herein “Shares” Shall Be Deemed to Include Any Class a Ordinary Shares Issued Upon Conversion of the Class B Ordinary Shares Comprising the Shares. the Terms (This “Agreement”) on Which the Company Is Willing to Issue the Shares to the Subscriber, and the Company and the Subscriber’s Agreements Regarding Such Shares, Are as Follows: 1. Subscription for Shares

from S-1 4 pages Promissory Note

from DRS 9 pages Haymaker Acquisition Corp. IV, a Cayman Islands Exempted Company (The “Company”), Is Pleased to Accept the Offer Haymaker Sponsor IV LLC, a Delaware Limited Liability Company, (The “Subscriber” or “You”) Has Made to Subscribe for 5,750,000 Class B Ordinary Shares of the Company (The “Shares”), $0.0001 Par Value Per Share (The “Class B Ordinary Shares”), Up to 750,000 of Which Are Subject to Complete or Partial Forfeiture by You if the Underwriters of the Company’s Initial Public Offering (“Ipo”) of Units (“Units”) Do Not Fully Exercise Their Over-Allotment Option (The “Over-Allotment Option”). for the Purposes of This Agreement, References to “Ordinary Shares” Are To, Collectively, the Class B Ordinary Shares and the Company’s Class a Ordinary Shares, $0.0001 Par Value Per Share (The “Class a Ordinary Shares”). Pursuant to the Company’s Memorandum and Articles of Association, as Amended to the Date Hereof (The “Articles”), Unless Otherwise Provided in the Definitive Agreement for the Company’s Initial Business Combination, Class B Ordinary Shares Will Convert Into Class a Ordinary Shares on a One-For-One Basis, Subject to Adjustment, Upon the Terms and Conditions Set Forth in the Articles. Unless the Context Otherwise Requires, as Used Herein “Shares” Shall Be Deemed to Include Any Class a Ordinary Shares Issued Upon Conversion of the Class B Ordinary Shares Comprising the Shares. the Terms (This “Agreement”) on Which the Company Is Willing to Issue the Shares to the Subscriber, and the Company and the Subscriber’s Agreements Regarding Such Shares, Are as Follows: 1. Subscription for Shares

from DRS 4 pages Promissory Note