Document:

EX-10.1

 Exhibit 10.1 

LENNOX INTERNATIONAL INC. 

Long-Term Incentive Award Agreement 

U.S. Employees – Vice President and Above 

THIS AGREEMENT (“Agreement”) is made as of December 10, 2021 (the “Date of Grant”), by
and between Lennox International Inc., a Delaware corporation (the “Company”), and __________ (“Participant”). 

The Company has adopted the Lennox International Inc. 2019 Equity and Incentive Compensation Plan (as amended and restated from time to time,
the “Plan”), the terms of which are incorporated by reference and made a part of this Agreement, for the benefit of eligible employees, Directors, and certain other service providers of the Company and its Subsidiaries
(together, “LII”). Capitalized terms used and not otherwise defined in this Agreement have the meanings set forth in the Plan. 

Pursuant to the Plan, the Committee, which has responsibility for administering the Plan, has determined that it is in the interest of the
Company and its Stockholders to make the awards described in this Agreement in order to increase Participant’s personal interest in the continued success and progress of the Company, to foster and enhance the long-term profitability of the
Company for the benefit of its Stockholders by offering the incentive of long-term rewards, and to encourage Participant to remain in the employ of LII. 

The Company and Participant therefore agree as follows: 

1. Grant of Award. Subject to and upon the terms of this Agreement and the Plan, the Company grants to Participant on the Date of Grant
an award of 1,597 service-based Restricted Stock Units (“RSUs” and such award, the “RSU Award”). 

2. Restrictions on Transfer. Subject to Section 15 of the Plan, neither the awards evidenced hereby nor any interest therein or in
the Common Shares underlying such awards shall be transferable prior to settlement other than by will or pursuant to the laws of descent and distribution. 

3. Conditions for Vesting. Subject to Participant’s compliance with the terms of this Agreement, the RSU Award will vest on
December 10, 2023 (the “RSU Vesting Date,” and the period from the Date of Grant until the RSU Vesting Date, the “RSU Restriction Period”). If the RSU Vesting Date is not a day on which Common
Shares are traded on a U.S. national securities exchange or quoted in an inter-dealer quotation system, then the RSU Vesting Date will be the preceding day on which sales of Common Shares were reported. 

(a) Forfeiture. Any RSU Award that does not become vested as described in this Section 3 will be forfeited,
including, except as provided in Section 4, if Participant ceases to be continuously employed with LII prior to the end of the RSU Restriction Period. 

4. Termination of Employment; Change in Control. Unless otherwise determined by the Committee in its sole discretion, and
notwithstanding anything herein to the contrary, the RSU Award will be subject to vesting or cancellation in connection with the events specified below: 

(a) If, prior to the end of the RSU Restriction Period, Participant violates 

 
Section 8 of this Agreement or is terminated by LII for Cause (as defined in any applicable employment agreement between LII and Participant or as determined by the Committee in its sole
discretion in the absence of any such employment agreement), then, immediately after LII becomes aware of a violation of Section 8 or Participant’s termination, the RSU Award will be cancelled. 

(b) If, prior to the end of the RSU Restriction Period, Participant terminates employment with LII voluntarily, then,
immediately after Participant’s termination, the RSU Award will be cancelled. 
 (c) If, prior to the end of the RSU
Restriction Period, Participant is terminated by the Company without cause, then the RSU Award will vest fully as of the date of termination. 

(d) If, prior to the end of the RSU Restriction Period, Participant dies or incurs a Disability, then Participant, or in the
event of Participant’s death, Participant’s beneficiary, will vest in a pro rata amount of the RSU Award based upon the portion of the RSU Restriction Period during which Participant served as an employee of LII, determined as of the date
of death or Disability, and the remainder of the RSU Award will be cancelled. For purposes of this Agreement, “Disability” means permanently disabled (completely unable to perform Participant’s duties as defined in the benefit plans
of the Company). 
 (e) If a Change in Control occurs prior to the end of the RSU Restriction Period, Section 12(b) of
the Plan shall apply. If a Change in Control occurs after the end of the RSU Restriction Period, Section 12(b) of the Plan shall not apply. 

5. RSU Payment Timing. 

(a) General. Except as otherwise provided in Section 5(b), vested RSUs will be paid within 30 days following the
RSU Vesting Date. Vested RSUs will be paid in the form of one Common Share for each vested RSU. 
 (b) Other Payment
Events. Notwithstanding Section 5(a), to the extent that the RSUs are vested on the dates set forth below, payment with respect to the RSUs will be made as follows: 

(i) to the extent the RSUs are vested as a result of Section 4(c) in connection with Participant’s termination
without cause, such vested RSUs will be settled by issuing to Participant one Common Share for each such vested RSU within 30 days after the date of termination; 

(ii) to the extent the RSUs are vested (and have not previously been settled) as a result of Section 4(d) in connection
with Participant’s death or Disability, or as a result of Section 4(e) in connection with a Change in Control, such vested RSUs will be settled by issuing to Participant (or Participant’s beneficiary) one Common Share for each such
vested RSU within 60 days after the date of such vesting event; but 

 (iii) notwithstanding Section 5(b)(i), if Section 409A of the Code
applies to the RSU Award and settlement is triggered (A) by Disability and such Disability does not constitute “disability” for purposes of Section 409A(a)(2)(C) of the Code or (B) by a Change in Control and such Change in
Control does not constitute a “change in control” for purposes of Section 409A(a)(A)(v) of the Code, then payment of the RSUs will be made within 60 days after the earliest to occur of (w) the RSU Vesting Date,
(x) Participant’s death, (y) Participant’s “disability” for purposes of Section 409A(a)(2)(C) of the Code (“409A Disability”), or (z) the occurrence of a Change in Control that
constitutes a “change in control” for purposes of Section 409A(a)(2)(A)(v) of the Code (a “409A Change in Control”); and 

(iv) in no event shall Participant be permitted to designate the taxable year of payment for the RSUs. 

6. Withholding for Taxes. To the extent that the Company is required to withhold federal, state, local or foreign taxes or other
amounts in connection with the delivery to Participant of Common Shares or any other payment to Participant or any other payment or vesting event under this Agreement, and the amounts available to the Company for such withholding are insufficient,
it shall be a condition to the obligation of the Company to make any such delivery or payment that Participant make arrangements satisfactory to the Company for payment of the balance of such taxes or other amounts required to be withheld. Unless
otherwise determined by the Committee, such withholding requirement shall be satisfied by retention by the Company of a portion of the Common Shares to be delivered to Participant. The shares so retained shall be credited against such withholding
requirement at the fair market value of such Common Shares on the date the applicable benefit is to be included in Participant’s income. In no event will the fair market value of the Common Shares to be withheld and/or delivered pursuant to
this Section 6 to satisfy applicable withholding taxes exceed the minimum amount of taxes required to be withheld. 
 7.
Adjustments. The number of Common Shares subject to each award granted hereunder and the other terms and conditions of the grants evidenced by this Agreement are subject to adjustment as provided in Section 11 of the Plan. 

8. Protective Covenants. 

(a) Noncompete Obligations. For one year following the effective date of Participant’s termination of employment with LII (the
“Termination Date”), Participant will not participate in any way in any activities within the same geographic area where Participant had responsibility to conduct business activity prior to the Termination Date, on behalf of
a business that provides products or services that are the same or similar to products or services offered or planned by LII as of the Termination Date. 

If Participant violates Section 8(a), Participant must pay LII on demand an amount equal to the sum of the
pre-tax gains received from RSU Awards that vested under this Agreement in the one year period prior to the Termination Date, up to a maximum amount of the following multiple of Participant’s
annual base salary in effect on the Termination Date: .75 if Participant is a Vice President or 1.5 if Participant is an Executive Vice President. 

(b) Non-Solicitation Obligations. For one year following the Termination Date, Participant will
not, directly or indirectly: (i) solicit, recruit or hire any person who is an LII employee as of the Termination Date; or (ii) solicit or induce any customer, supplier or distributor as of the Termination Date to cease or reduce doing
business with LII, or divert an LII business opportunity. 

 If Participant violates Section 8(b), LII will be irreparably harmed and entitled to
specific performance, injunctive relief, attorneys’ fees and costs incurred in obtaining relief, and any other remedy available at law or equity. 

(c) Consent. Participant may engage in activities otherwise restricted by this Section 8 with the written consent of LII’s
Chief Executive Officer. 
 9. No Stockholder Rights. Participant will not be deemed for any purpose, including voting rights and
dividends or dividend equivalents, to be, or to have any of the rights of, a Stockholder with respect to any Common Shares as to which the RSU Award relate until such shares are issued or transferred to Participant by the Company. The existence of
this Agreement will not affect the right or power of LII or its Stockholders to accomplish any corporate act. 
 10. Restrictions Imposed
by Law. Participant agrees that LII will not be obligated to deliver any Common Shares if LII determines that such delivery would violate any applicable law or any rule or regulation of any governmental authority or any rule or regulation of, or
agreement of the Company with, any securities exchange or association upon which the Common Shares may be listed or quoted. LII will not be obligated to take any affirmative action to cause the delivery of Common Shares to comply with any such law,
rule, regulation or agreement. 
 11. Compliance with Section 409A of the Code. To the extent applicable, it is
intended that this Agreement and the Plan comply with or be exempt from the provisions of Section 409A of the Code. This Agreement and the Plan shall be administered in a manner consistent with this intent, and any provision that would cause
this Agreement or the Plan to fail to satisfy Section 409A of the Code shall have no force or effect until amended to comply with or be exempt from Section 409A of the Code (which amendment may be retroactive to the extent permitted by
Section 409A of the Code and may be made by the Company without the consent of Participant). 
 12. No Right to Future Awards.
The grant of the awards under this Agreement to Participant are voluntary, discretionary awards being made on a one-time basis and they do not constitute commitments to make any future awards. The grant of the
awards and any payments made hereunder will not be considered salary or other compensation for purposes of any severance pay or similar allowance, except as otherwise required by law. 

13. Notice. Unless LII notifies Participant in writing of a different procedure, any notice or other communication to LII with respect
to this Agreement must be in writing and delivered personally or by first class mail, postage prepaid, to the following address: 
 Lennox
International Inc. 
 c/o Corporate Secretary 

2140 Lake Park Boulevard 

Richardson, Texas 75080 
 Any notice or other
communication to Participant with respect to this Agreement must be in writing and delivered personally, or sent electronically to Participant or by first class mail, postage prepaid, to Participant’s address as listed in the records of the
Company on the Date of Grant, unless LII has received written notification from Participant of a change of address. 

 14. Amendment. This Agreement may be supplemented or amended from time to time as
approved by the Committee as contemplated by the Plan. Participant’s consent shall not be required to an amendment that is deemed necessary by the Company to ensure compliance with Section 409A of the Code or Section 10D of the
Exchange Act. 
 15. Participant Employment. Nothing contained in this Agreement, and no action of LII or the Committee, will confer
or be construed to confer on Participant any right to continue in the employ of LII or interfere in any way with the right of LII to terminate Participant’s employment at any time, with or without cause, subject, however, to the provisions of
any employment agreement between Participant and LII. 
 16. Governing Law. This Agreement is governed by Delaware law. Any dispute
arising out of or related to this Agreement, or any breach or alleged breach hereof, will be exclusively decided by a state or federal court in the State of Texas in the County of Dallas. Participant irrevocably waives Participant’s right, if
any, to have any disputes between Participant and the Company arising out of or related to this Agreement decided in any jurisdiction or venue other than a state or federal court in the State of Texas in the County of Dallas. Participant hereby
irrevocably consents to the personal jurisdiction of the state courts in the State of Texas in the County of Dallas for the purposes of any action arising out of or related to this Agreement. 

17. Construction. This Agreement is entered into, and the RSU Award is granted, pursuant to the Plan and are governed by and construed
in accordance with the Plan and the administrative interpretations adopted under the Plan. In the event of any inconsistency between the terms of the Plan and this Agreement, the terms of the Plan will control. Notwithstanding anything in this
Agreement to the contrary, Participant acknowledges and agrees that this Agreement and the awards described herein are subject to the terms and conditions of the Company’s claw-back policy as may be in effect from time to time (if any). 

18. Severability and Reformation. If any restriction or covenant in this Agreement is deemed by a court of competent jurisdiction to be
unreasonable or unenforceable as written, the court may modify any unreasonable or unenforceable element of the restriction or covenant to make it reasonable and enforceable or enforce it only to the extent it is reasonable and enforceable. If the
court determines that any restriction or covenant in this Agreement is wholly or partially invalid or unenforceable, the remainder of the restrictions or covenants will be given full effect. 

19. Entire Agreement. This Agreement and the Plan contain the entire agreement between the parties with respect to the RSU Award. If
Participant has a written employment agreement or change in control agreement which contains provisions that conflict with this Agreement or the Plan, the terms of the employment agreement or change in control agreement will control. 

20. Electronic Delivery. The Participant consents to the delivery of any documents related to the awards granted hereunder by
electronic means and agrees to participate in the Plan through an on-line or electronic system established and maintained by the Company or another third party designated by the Company. 

21. Participant Acceptance. Participant must accept the terms and conditions of this Agreement by electronic signature or by signing in
the space below and returning a signed copy to the Company. 
 22. No-Waiver. Any waiver by
the Company of a breach of any provision of this Agreement will not operate or be construed as waiver of any subsequent breach. 

 23. Other Entities Protected. This Agreement, including the restrictions on
Participant’s activities apply to any subsidiary, affiliate, successor and assign of LII to which Participant provides services or about which Participant receives Confidential Information. LII has the right to assign this Agreement at its sole
election without the need for further notice to or consent by Participant. Accordingly, this Agreement will inure to the benefit of, and may be enforced by, any and all successors and assigns of LII, including without limitation by asset assignment,
stock sale, merger, consolidation or other corporate reorganization, and will be binding on Participant, Participant’s executors, administrators, personal representatives or other successors in interest. Participant further agrees that
Participant’s rights are personal and may not be assigned or transferred. 
 24. Acknowledgement. Participant acknowledges that
Participant (a) has received a copy of the Plan, (b) has had an opportunity to review the terms of this Agreement and the Plan, (c) understands the terms and conditions of this Agreement and the Plan and (d) agrees to such terms
and conditions. 
  

			
	 ACCEPTED:

		
	 Signed:
	 	 
		 	 «First» «Last»

		
	 Date:
	 	 «Date»EX-10.1

 Exhibit 10.1 

SPONSOR LETTER AGREEMENT 

This SPONSOR LETTER AGREEMENT (this “Sponsor Letter Agreement”) is entered into as of December 13, 2021, by and among
Haymaker Acquisition Corp. III, a Delaware corporation (“HYAC”), Haymaker Sponsor III LLC, a Delaware limited liability company (together with its successors, the “Sponsor”), BioTE Holdings, LLC, a Nevada limited
liability company (“BioTE”), Teresa S. Weber (“Members’ Representative”), and each other holder of the issued and outstanding shares of Class B common stock of HYAC, par value $0.0001 per share (the
“Class B Common Shares”), that is required to become bound by the terms and conditions hereof (collectively with the Sponsor, the “Class B Holders”). Capitalized terms used but
not otherwise defined herein shall have the meanings ascribed to such terms in the Business Combination Agreement (as defined below). 

WHEREAS, concurrently with the execution of this Sponsor Letter Agreement, HYAC, the Sponsor, BioTE, the Members’ Representative and the
other parties thereto will enter into that certain Business Combination Agreement, to be dated as of the date hereof (as it may be amended, restated or otherwise modified from time to time, the “Business Combination Agreement”),
pursuant to which, among other things, HYAC will effectuate a business combination with BioTE, on the terms and subject to the conditions set forth therein (the “Transaction”); 

WHEREAS, (a) Section 4.3(b)(i) of HYAC’s Amended and Restated Certificate of Incorporation (the “HYAC
Charter”) provides that Class B Common Shares shall automatically convert into Class A Common Shares on a one-for-one basis (such ratio, the
“Initial Conversion Ratio”) on the closing of the initial Business Combination (as defined in the HYAC Charter), and (b) Section 4.3(b)(ii) of the HYAC Charter provides that the Initial Conversion Ratio shall be adjusted
in the event that additional Class A Common Shares, or Equity-linked Securities (as defined in the HYAC Charter), are issued (or deemed issued) in excess of the amounts offered in HYAC’s initial public offering of securities such that the
Class B Holders shall continue to own 20% of the issued and outstanding Common Shares after giving effect to such issuance; 
 WHEREAS,
the Transaction constitutes a Business Combination under the HYAC Charter; and 
 WHEREAS, in connection with the Transaction, the parties
hereto desire to enter into this Sponsor Letter Agreement pursuant to which: (i) the Sponsor will agree to vote, at any duly called meeting of the shareholders of HYAC, in favor of approval of the Business Combination Agreement and the
Transaction; (ii) except as otherwise provided herein, the Sponsor will agree not to effect any sale or distribution of any of its Class B Common Shares or Buyer Warrants during the period described herein; and (iii) each Class B
Holder shall irrevocably waive its rights under Section 4.3(b)(ii) of the HYAC Charter to receive additional Class A Common Shares upon conversion of the Class B Common Shares held by him, her or it in connection with the Transaction
or any other anti-dilution (or similar) protections in respect of the Class B Common Shares in connection with the Transaction. 

  
 1 

 NOW, THEREFORE, in consideration of the premises and the mutual agreements herein contained,
and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows: 

Section 1. Agreement to Vote. 

The Sponsor, by this Sponsor Letter Agreement, with respect to its Class B Common Shares, hereby agrees to vote at any duly called
meeting of the shareholders of HYAC (or any adjournment or postponement thereof), and in any action by resolution of the shareholders of HYAC, all of Sponsor’s Class B Common Shares in favor of the approval and adoption of the Business
Combination Agreement and the transactions contemplated by the Business Combination Agreement. 
 Section 2. Lockup.

 (a) The Sponsor agrees that any of its Class B Common Shares and the Buyer Warrants (collectively, the “Sponsor
Securities”) may not be transferred, assigned or sold (except to the extent set forth in Section 2(b) (the “Lockup”) until the earliest to occur: (i) the termination of the Business
Combination Agreement in accordance with its terms and (ii) the Closing Date. 
 (b) Notwithstanding the provisions set forth in
Section 2(a), transfers, assignments and sales by the Sponsor of the Sponsor Securities are permitted (i) to HYAC’s officers or directors, any affiliates or family members of any of HYAC’s officers or
directors, any members or partners of the Sponsor or their affiliates, any affiliates of the Sponsor, or any employees of such affiliates; (ii) in the case of an individual, by gift to a member of the individual’s immediate family or to a
trust, the beneficiary of which is a member of one of the individual’s immediate family, an affiliate of such person or to a charitable organization; (iii) in the case of an individual, by virtue of laws of descent and distribution upon
death of the individual; (iv) in the case of an individual, pursuant to a qualified domestic relations order; (v) by virtue of the Sponsor’s governing documents upon the winding up and subsequent liquidation or dissolution of the
Sponsor; (vi) to HYAC for no value for cancellation in connection with the consummation of the transactions contemplated by the Business Combination Agreement; (vii) in the event of HYAC’s liquidation prior to the completion of the
transactions contemplated by the Business Combination Agreement; (viii) by private sales or transfers made in connection with the consummation of the transactions contemplated by the Business Combination Agreement at prices no greater than the
price at which the securities were originally purchased; (ix) transfers by virtue of the laws of the State of Delaware or the Sponsor’s limited liability company agreement upon dissolution of the Sponsor; or (x) to a nominee or
custodian of a person or entity to whom a disposition or transfer would be permissible under the foregoing clauses; provided, however, that in the case of clauses (i) through (v) these permitted transferees must enter into a written agreement
agreeing to be bound by the restrictions herein. 
 Section 3. Waiver. 

(a) The Sponsor, on behalf of itself and each transferee of any of the Class B Common Shares, and each other Class B Holder after
the date hereof hereby irrevocably and unconditionally relinquishes and waives (the “Waiver”) as of the date hereof any and all rights to adjustment or other anti-dilution protections related to the Class B Common Shares
(whether prior, existing or in the future), including the right under Section 4.3(b)(ii) of the HYAC Charter to receive Class A Common Shares in excess of the number issuable at the Initial Conversion Ratio (the “Excess
Shares”) upon conversion of the Class B Common Shares held by it in connection with the Transaction. 

  
 2 

 (b) Each Class B Holder acknowledges and agrees that if such Class B Holder
receives any Excess Shares, such issuance of Excess Shares shall be void, ab initio and such Excess Shares shall automatically be deemed to be surrendered for no consideration to HYAC for cancellation. Each Class B Holder agrees to take,
or cause to be taken, all actions and to do, or cause to be done, all things necessary, proper or advisable to consummate and make effective the immediately preceding sentence, including promptly surrendering such shares to HYAC for cancellation for
no consideration (and any evidence of issuance thereof, whether book-entry or certificates). 
 Section 4. Authorization;
Enforcement. Each of the parties hereto represents to the other parties hereto that such party has the requisite corporate, limited liability company or other similar power and authority to execute and deliver this Sponsor Letter Agreement
and to consummate the transactions contemplated hereby. The execution and delivery of this Sponsor Letter Agreement and the consummation of the transactions contemplated hereby have been duly authorized by all necessary corporate action on the part
of such party. This Sponsor Letter Agreement has been duly and validly executed and delivered by each party and constitutes a valid, legal and binding agreement of such party (assuming this Sponsor Letter Agreement has been duly authorized, executed
and delivered by each party), enforceable against such party in accordance with its terms (subject to applicable bankruptcy, insolvency, reorganization, moratorium or other Laws affecting generally the enforcement of creditors’ rights and
subject to general principles of equity). 
 Section 5. Representations and Warranties of the
Class B Holders. Each Class B Holder represents and warrants to HYAC and the Members’ Representative that the following statements are true and correct: 

(a) The Sponsor is the record owner of all of the outstanding Class B Common Shares as of the date hereof. Immediately prior to giving
effect to the transactions occurring on the Closing Date, all of the Class B Common Shares to be forfeited pursuant to the Business Combination Agreement will be owned of record by the Sponsor, and all other Class B Common Shares will be
owned of record by the Sponsor or its direct or indirect equityholders. None of the Class B Holders has asserted or perfected any rights to adjustment or other anti-dilution protections with respect to any equity securities of HYAC (including
the Class B Common Shares) (whether in connection with the transactions contemplated by the Business Combination Agreement or otherwise). 

(b) The execution, delivery and performance by it of this Sponsor Letter Agreement and the consummation by the Class B Holder of the
transactions contemplated hereby do not: (a) conflict with or result in any breach of any provision of the Governing Documents of the Class B Holder, (b) result in a violation or breach of, or constitute (with or without due notice or
lapse of time or both) a default or give rise to any right of termination, cancellation or acceleration under, any of the terms, conditions or provisions of any note, bond, mortgage, indenture, lease, license, contract, agreement or other instrument
or obligation to which the Class B Holder is a party or by which its properties or assets may be bound, (c) violate any Order or Law of any Governmental Entity applicable to the Class B Holder or its Subsidiaries or any of

  
 3 

 
their respective properties or assets, as applicable or (d) result in the creation of any Lien upon any of the assets (including the Class B Common Shares) of the Class B Holder,
except in the case of clauses (b), (c) and (d) above, for violations which would not reasonably be expected to materially impact, impair or delay or prevent the ability of the Class B Holder to consummate the transactions contemplated
by this Sponsor Letter Agreement or have a material adverse effect on the ability of the Class B Holder to perform its obligations hereunder. 

Section 6. Successors and Assigns. Each Class B Holder acknowledges and agrees that the terms of this Sponsor
Letter Agreement are binding on and shall inure to the benefit of such Class B Holder’s beneficiaries, heirs, legatees and other statutorily designated representatives. Each Class B Holder also understands that this Sponsor Letter
Agreement, once executed, is irrevocable and binding, and if a Class B Holder transfers, sells or otherwise assigns any Class B Common Shares held by it as of the date of this Sponsor Letter Agreement, the transferee of such Class B
Common Shares shall be bound by the terms of this Sponsor Letter Agreement as if such transferee were a party hereto; provided that any such obligations under Section 2 shall only apply to the extent so required by
the proviso in Section 2(b) hereof. Any Class B Holder that desires to transfer, sell or otherwise assign any Class B Common Shares prior to the Closing shall, in addition to any other existing obligations or
restrictions applicable to such proposed transfer, sale or assignment that may exist, provide the proposed transferee with a copy of this Sponsor Letter Agreement and, as a condition to such transfer, sale or assignment, obtain from such proposed
transferee a written acknowledgment (in substantially the same form attached hereto as Exhibit A) that such proposed transferee acknowledges and agrees to the Waiver as a Class B Holder (including all of the representations, warranties,
covenants and obligations of the Class B Holders hereunder) and the other matters set forth in this Sponsor Letter Agreement. Notwithstanding the foregoing or anything to the contrary in the Business Combination Agreement or any Ancillary
Agreement, nothing in this Sponsor Letter Agreement shall permit the Sponsor to transfer any of the Class B Common Shares to any Person in contravention of any of the covenants or agreements in the Business Combination Agreement or any
Ancillary Agreement or any other restrictions on transfer under the Governing Documents of HYAC or under applicable securities Laws. 

Section 7. Effect of this Sponsor Letter Agreement on HYAC Charter. The HYAC Charter, as affected hereby, shall remain
in full force and effect. The Waiver contained in this Sponsor Letter Agreement shall not constitute a waiver of any other provision of the HYAC Charter, except as expressly provided herein. 

Section 8. Termination. This Sponsor Letter Agreement shall terminate, and have no further force and effect, if the
Business Combination Agreement is terminated in accordance with its terms prior to the Closing. 
 Section 9.
Cooperation. Upon the request of any party hereto, any Class B Holder shall, without further consideration, execute and deliver, or cause to be executed and delivered, such other instruments, and shall use reasonable best efforts
to take, or cause to be taken, such further or other actions as such other party may deem reasonably necessary or desirable to carry out the intent and purposes of this Sponsor Letter Agreement. 

Section 10. Amendment. This Sponsor Letter Agreement may be amended or modified only by a written agreement executed
and delivered by duly authorized officers of HYAC, the Members’ Representative, BioTE, and the Sponsor. This Sponsor Letter Agreement may not be modified or amended except as provided in the immediately preceding sentence and any purported
amendment by any party or parties hereto effected in a manner which does not comply with this Section 10 shall be void, ab initio. 

  
 4 

 Section 11. Notices. All notices, requests, claims, demands and
other communications hereunder shall be in writing and shall be given (and shall be deemed to have been duly given upon receipt) by delivery in person, by facsimile (having obtained electronic delivery confirmation thereof), e-mail (having obtained electronic delivery confirmation thereof), or by registered or certified mail (postage prepaid, return receipt requested) to the other parties hereto as follows: 

(c) If to HYAC or the Sponsor, to: 

c/o Haymaker Acquisition Corp. III 

501 Madison Avenue, Floor 12 

New York, NY 10022 
 Attn:
Christopher Bradley 
 Email: cbradley@mistralequity.com 

with a copy (which shall not constitute notice) to: 

DLA Piper LLP (US) 
 1251
Avenue of the Americas, 27th Floor 
 New York, NY 10020 

Attention: Sidney Burke 

     Stephen P. Alicanti 

Facsimile: (212) 335-4501 

E-mail: sidney.burke@us.dlapiper.com 

 stephen.alicanti@us.dlapiper.com 

(d) If to BioTE or Members’ Representative, to: 

c/o BioTE Holdings, LLC 
 1875
W. Walnut Hill Ln #100 
 Irving, TX 75038 

Attention: Marybeth Conlon 

Email: marybeth.conlon@biote.com 

with a copy (which shall not constitute notice) to: 

Cooley (UK) LLP 
 22
Bishopsgate 
 London EC2N 4BQ, UK 

Attention: Michal Berkner; Ryan Sansom 

Email: mberkner@cooley.com; rsansom@cooley.com 

or to such other address as the party to whom notice is given may have previously furnished to the others in writing in the manner set forth
above. 
 Section 12. Incorporation by Reference. The provisions set forth in Sections 10.4, 10.5,
10.6, 10.7, 10.8, 10.9, 10.10, 10.11, 10.13, 10.14, and 10.15 of the Business Combination Agreement, as in effect as of the date hereof, are hereby incorporated by reference into, and
shall be deemed to apply to, this Agreement mutatis mutandis.  
 signature page follows 

  
 5 

 IN WITNESS WHEREOF, the parties hereto have executed this Sponsor Letter Agreement as of the
date first written above. 
  

			
	HAYMAKER ACQUISITION CORP. III
		
	By:	 	/s/ Christopher Bradley
		 	Name: Christopher Bradley
		 	Title: Chief Financial Officer

  

			
	HAYMAKER SPONSOR III LLC
		
	By:	 	/s/ Steven J. Heyer
		 	Name: Steven J. Heyer
		 	Title: Managing Member

  

			
	BIOTE HOLDINGS, LLC
	
	 CLASS A MEMBER
 BIOTE MANAGEMENT,
LLC

		
	By:	 	/s/ Gary S. Donovitz
		 	Gary S. Donovitz, its Sole Member and Manager

  

			
	MEMBERS’ REPRESENTATIVE
		
		 	/s/ Teresa S. Weber
		 	Teresa S. Weber

  
 [Signature Page to
Sponsor Letter Agreement] 

 EXHIBIT A 

JOINDER TO 

SPONSOR LETTER AGREEMENT 

The undersigned is executing and delivering this Joinder pursuant to the Sponsor Letter Agreement dated as of [•], 2021 (as amended and
as the same may hereafter be amended, restated, supplemented and modified, the “Sponsor Letter Agreement”), by and among Haymaker Acquisition Corp. III, a Delaware corporation (“HYAC”), Haymaker Sponsor III LLC, a
Delaware limited liability company, BioTE Holdings, LLC, a Nevada limited liability company, Teresa S. Weber, and each holder of the issued and outstanding shares of Class B common stock of HYAC required to become bound by the terms and
conditions of the Sponsor Letter Agreement. 
 By executing and delivering this Joinder to HYAC, the undersigned hereby agrees to become a
party to, to make all representations and warranties under, to be bound by all obligations under, and to comply with the provisions of the Sponsor Letter Agreement in the same manner as if the undersigned were an original signatory to the Sponsor
Letter Agreement; provided that any such obligations under Section 2 of the Sponsor Letter Agreement shall only apply to the extent so required by the proviso in Section 2(b) thereof. 

Accordingly, the undersigned has executed and delivered this Joinder as of the _____ day of [•], 202[X]. 

 

			
	[TRANSFEREE]
		
	By:	 	
	Its:

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00337-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00337-of-00352.parquet"}]]