Document:

Exhibit 10.2

 

VOTING AND SUPPORT AGREEMENT

 

THIS VOTING AND SUPPORT AGREEMENT (this “Agreement”)
is made and entered into as of April 25, 2022 (the “Effective Date”) by and among SUPERBAC PubCo Holdings Inc.,
an exempted company limited by shares incorporated under the laws of the Cayman Islands (“PubCo”), SuperBac Biotechnology
Solutions S.A., a corporation incorporated under the laws of Brazil (“Company”), XPAC Acquisition Corp., an exempted
company limited by shares incorporated under the laws of the Cayman Islands (“XPAC”), and each of the undersigned
parties listed on Schedule A hereto as the holder of Equity Interests (as defined below) (each such party, an “Equity
Holder” and collectively, “Equity Holders”). Each of PubCo, the Company, XPAC, the Equity Holders and any
other party that joins this Agreement from time to time will individually be referred to herein as a “Party” and,
collectively, as the “Parties”. 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, each Equity Holder is the legal
and beneficial owner of the shares of common or preferred stock of the Company listed next to its name on Schedule A (the “Equity
Interests”);

 

WHEREAS, concurrently with the execution
of this Agreement, the Company, XPAC, PubCo, and certain other parties entered into a Business Combination Agreement (as it may be amended,
supplemented or otherwise modified from time to time, the “Business Combination Agreement”);

 

WHEREAS, in consideration for the benefits
to be received directly or indirectly by the Equity Holder in connection with the transactions contemplated by the Business Combination
Agreement and as a material inducement to XPAC and PubCo agreeing to enter into and consummate the transactions contemplated by the Business
Combination Agreement, each Equity Holder agrees to enter into this Agreement and to be bound by the agreements, covenants and obligations
contained in this Agreement; and

 

WHEREAS, the Parties acknowledge and agree
that XPAC and PubCo would not have entered into and agreed to consummate the transactions contemplated by the Business Combination Agreement
without the Equity Holders entering into this Agreement and agreeing to be bound by the agreements, covenants and obligations contained
in this Agreement.

 

NOW, THEREFORE, in consideration of the foregoing
and the mutual covenants and agreements herein contained, and intending to be legally bound hereby, the Parties agree as follows:

 

Article I

OBLIGATIONS

 

1.1            Pre-Closing
Exchange. Each of the Equity Holders agree to be bound by, and comply with, the provisions of Section 2.1(a)(ii) of the
Business Combination Agreement.

 

     

     

    

 

1.2            Newco
Joinder. As soon as practicable after the formation of Newco and in any event prior to the Initial Merger, the Company shall take,
or cause to be taken, any and all action necessary for Newco to join as a Party to this Agreement by entering into and delivering to
the Parties hereto a joinder agreement substantially in the form attached hereto as Exhibit A (the “Newco Joinder
Agreement to the Voting and Support Agreement”).

 

1.3            Newco
Board of Directors Approval. Following the formation of Newco and in connection with the execution and delivery the Newco Joinder
Agreement to the Voting and Support Agreement, each Equity Holder agrees to vote, consent, or approve (or cause to be voted, consented
or approved) all of such Equity Holder’s Newco Class A Shares and Newco Class B Shares, as applicable, to (a) approve
the Business Combination Agreement, the Pre-Closing Exchange, the Acquisition Merger, the Transaction Documents to which Newco is a party
and the other transactions involving Newco as contemplated by the Business Combination Agreement and the agreements entered into in connection
therewith and deem the Business Combination Agreement advisable, and (b) determine to recommend that the Newco Shareholders vote
to approve the Acquisition Merger and such other actions as contemplated by the Business Combination Agreement.

 

1.4            Newco
and Company Shareholders’ Approvals.

 

(a)            Newco
Shareholder Approval. Following the unanimous approval of the board of directors of Newco pursuant to Section 1.3 hereof, and
in connection with the execution and delivery the Newco Joinder Agreement to the Voting and Support Agreement, each Equity Holder agrees
to vote, consent, or approve (or cause to be voted, consented or approved) all of such Equity Holder’s Newco Class A Shares
and Newco Class B Shares, as applicable, to obtain and deliver, or cause to be obtained and delivered, the approval by the Newco
Shareholders of the Acquisition Merger and such other actions as contemplated by the Business Combination Agreement in accordance with
the memorandum and articles of association of Newco (the “Newco Shareholder Approval”).

 

(b)            Company
Shareholder Approval. Within twenty (20) days following the execution and delivery of the Business Combination Agreement, each Equity
Holder agrees to take, or cause to be taken, any and all necessary measures to hold a shareholders meeting of the Company and to vote,
consent, or approve (or cause to be voted, consented or approved) all of such Equity Holder’s Equity Interests to obtain the approval
from the Company Shareholders of the adoption of the Business Combination Agreement, the Transaction Documents to which it is a party
and the consummation of the Transactions contemplated thereby, including approval of the execution of the Business Combination Agreement,
the other Transaction Documents to which the Company is a party and the authorization and ratification of all acts performed or required
to be performed by the officers of the Company for the signing and execution of the Business Combination Agreement and the Transaction
Documents to which the Company is a party (the “Company Shareholder Approval”; and, together with the Newco Shareholder
Approval, the “Corporate Approvals”).

 

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(c)            Without
limiting the generality, and in furtherance, of the foregoing, during the term of this Agreement, for purposes of the Corporate Approvals,
each Equity Holder, on its own behalf and on behalf of each of its Shareholder Entities, if any, hereby agrees to be present for any
meeting and vote (in person or by proxy), or consent to any action by written consent or resolution with respect to, as applicable, the
Equity Interests and Newco Shares (i) in favor of, and to adopt, the Business Combination Agreement, the other Transaction Documents
to which the Company or Newco is a party and the transactions contemplated thereby, (ii) in favor of the other matters set forth
in the Business Combination Agreement, in the other Transaction Documents to which the Company or Newco is a party and the transactions
contemplated thereby to the extent required for the Company and Newco to carry out their respective obligations thereunder, and (iii) in
opposition to: (A) any merger, consolidation, purchase of ownership interests or assets of or by the Company or Newco, recapitalization
or similar business combination transaction (in each case, other than in connection with the Business Combination Agreement and the other
Transaction Documents) or (B) any other action, proposal, transaction or agreement involving the Company or Newco that is intended,
or would reasonably be expected, to result in the failure of the Merger from being consummated in accordance with the Business Combination
Agreement and the other Transaction Documents or any breach of (x) any representation, warranty, covenant, obligation or agreement
of the Company or Newco in the Business Combination Agreement or any other Transaction Document or (y) any of the conditions to
the obligations of the Company or Newco under the Business Combination Agreement or any other Transaction Document not being fulfilled.

 

(d)            Each
Equity Holder agrees not to deposit, and to cause its affiliates not to deposit, any Equity Interests or Newco Shares in a voting trust
or subject any Equity Interests or Newco Shares to any arrangement or agreement with respect to the voting of such Equity Interests or
Newco Shares, unless in accordance with this Agreement or as specifically requested to do so by XPAC and the Company in connection with
the Business Combination Agreement, the other Transaction Documents or the transactions contemplated thereby.

 

(e)            Each
Equity Holder agrees (i) to refrain from exercising any dissenters’ rights or rights of appraisal under any applicable Law
at any time with respect to the transactions contemplated by the Transaction Documents, including the Acquisition Merger, and (ii) not
to commence or participate in any claim, derivative or otherwise, against the Company, Newco, XPAC, Merger Sub 1, Merger Sub 2, PubCo
or any of their respective Affiliates relating to the negotiation, execution or delivery of the Transaction Documents or the consummation
of the transactions contemplated thereby, including any claim (A) challenging the validity of, or seeking to enjoin the operation
of, any provision of the Transaction Documents or (B) alleging a breach of any fiduciary duty of the board of directors or similar
governing body of the Company, Newco, XPAC, Merger Sub 1, Merger Sub 2 or PubCo in connection with the Transaction Documents or the consummation
of any of the transactions contemplated thereby.

 

1.5            Proxy.

 

(a)            Without
limiting any other rights or remedies of the Parties, for all purposes of this Agreement, each Equity Holder hereby appoints, and shall
cause of each of its Shareholder Entities, if any, to appoint the Company and any individual designated in writing by the Company, and
each of them individually, as their proxies, agents and attorneys-in-fact, with full power of substitution and resubstitution, to vote
or act by written consent during the term of this Agreement with respect to the Corporate Approvals in the name and in the stead of such
Equity Holder and Shareholder Entity, as applicable, including (i) to attend on behalf of such Equity Holder and Shareholder Entity,
as applicable, any meeting of Company Shareholders or Newco Shareholders, as applicable, with respect to the Corporate Approvals, (ii) to
include the Equity Interests or Newco Shares in any computation for purposes of establishing a quorum at any such meeting of Company
Shareholders or Newco Shareholders, as applicable, in connection with the Corporate Approvals, (iii) to vote (or cause to be voted,
as applicable) the Equity Interests and Newco Shares or consent or approve (or withhold consent or approval, as applicable) with respect
to the Corporate Approvals in connection with any meeting of Company Shareholders or Newco Shareholders, including any action by written
consent or any other approval by the Company Shareholders or Newco Shareholders. The proxies and powers of attorney are and shall be
given to secure the performance of the duties of each Equity Holder under this Agreement. Each Equity Holder shall take such further
action or execute such other instruments as may be necessary to effectuate the intent of the applicable proxy.

 

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(b)            Each
proxy and power of attorney granted by each Equity Holder and such Equity Holder’s Shareholder Entity, if any, shall be irrevocable
during the term of this Agreement, shall be deemed to be coupled with an interest sufficient in law to support an irrevocable proxy,
is or, as applicable, will be granted in consideration for the Company entering into the Business Combination Agreement and agreeing
to consummate the transactions contemplated thereby and shall revoke any and all prior proxies granted by such Equity Holder or such
Equity Holder’s Shareholder Entity, if any, with respect to the Equity Interests or Newco Shares, except as otherwise provided
for in the Transaction Documents. The power of attorney granted by the Equity Holders herein is, and the powers of attorney to be granted
by such Equity Holder’s Shareholder Entities, if any, shall be, durable powers of attorney and shall survive the dissolution, bankruptcy,
death or incapacity of such Equity Holder or such Equity Holder’s Shareholder Entities, as applicable. The vote, consent or approval
by the proxyholders with respect to the Corporate Approvals shall control in the event of any conflict between such vote, consent or
approval (or withholding of consent or approval, as applicable) by the applicable proxyholder of the Equity Interests or Newco Shares
and a vote, consent or approval (or withholding of consent or approval, as applicable) by such Equity Holder or such Equity Holder’s
Shareholder Entities, if any, (or any other Person with the power to vote or provide consent or approval (or withhold consent or approval,
as applicable) with respect to such Equity Interests or Newco Shares) with respect to the Corporate Approvals. The proxies and powers
of attorney granted hereunder shall terminate upon the termination of this Agreement.

 

(c)            Notwithstanding
anything in this Agreement to the contrary, none of the provisions of this Section 1.5 shall apply to the Temasek Parties or
the Feffer Parties in their respective capacity as Equity Holders, and that no such proxy and power of attorney shall be granted
hereunder by any of the Temasek Parties or the Feffer Parties in favor of the Company.

 

1.6            Further
Assurances. During the term of this Agreement, each Equity Holder agrees that it shall not take any action that would reasonably
be expected to prevent, impede, interfere with or adversely affect the ability of any Equity Holder, Newco, PubCo, Merger Sub 1 or Merger
Sub 2 to perform its obligations under this Agreement and/or the Business Combination Agreement, except as expressly contemplated by
this Agreement or the Business Combination Agreement. Each Equity Holder hereby agrees to promptly execute and deliver all additional
agreements, documents or instruments, take, or cause to be taken, all actions and provide, or cause to be provided, all additional information
or other materials as may be necessary or advisable, in each case, as reasonably determined by XPAC and the Company, in connection with,
or otherwise in furtherance of, the transactions contemplated by the Business Combination Agreement or this Agreement.

 

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1.7            Termination
of Existing Shareholders’ Agreements. Each Equity Holder and the Company hereby agree that (i) each of the shareholders’
agreements set forth on Schedule B hereto shall be terminated and of no further force and effect (including any provisions of
any such agreement that, by its terms, survive such termination) effective as of, and subject to and conditioned upon the occurrence
of, the Acquisition Closing and (ii) upon such termination neither the Company nor any of its Affiliates shall have any further
obligations or Liabilities under or with respect to each such agreement. Without limiting the above, each of the Equity Holders who are
a party to the shareholders’ agreements set forth on Schedule B hereby expressly and irrevocably acknowledge and agree that
all terms and conditions of the respective agreements to which they are a party to were duly observed or waived, as applicable.

 

1.8            Business
Combination Agreement. Each Equity Holder hereby agrees to be bound by and subject to (i) Sections 6.2 (Access to
Information), 6.5 (Notice of Developments), 6.7 (No Trading), 11.13 (Publicity), and 11.14
(Confidentiality) of the Business Combination Agreement to the same extent as such provisions apply to the parties to the
Business Combination Agreement, as if such Equity Holder is directly party thereto (provided that the Temasek Parties shall not be bound
by, or subject to, the aforementioned Sections 6.2 or 6.5), and (ii) Sections 6.3(a) and 11.1 (Trust
Account Waiver) of the Business Combination Agreement to the same extent as such provisions apply to the Company, as if the Equity
Holder is directly party thereto.

 

1.9            Transfers
of Equity Interests and Newco Shares Prior to the Acquisition Closing. Except as expressly contemplated by the Business Combination
Agreement or this Agreement or with the prior written consent of XPAC (such consent to be given or withheld in its sole discretion),
from and after the date hereof until the earlier of the Acquisition Closing or the termination of the Business Combination Agreement
in accordance with its terms, each Equity Holder agrees not to Transfer any of the Equity Interests or Newco Shares. Notwithstanding
the foregoing or anything to the contrary herein:

 

(a)            the
foregoing restrictions shall not prohibit a Transfer (i) to the Equity Holder’s directors or officers, any affiliates or family
members of the Equity Holder’s directors or officers, any direct or indirect members or shareholders of the Equity Holder or any
affiliates of the Equity Holder; (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 the individual’s immediate family or 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) in the case of a trust, by distribution
to one or more of the permissible beneficiaries of such trust; (vi) by private sales or Transfers made in connection with the Acquisition
Closing at prices no greater than the price at which the securities were originally purchased; (vii) in the event of the Equity
Holder’s liquidation prior to the Acquisition Closing; (viii) by virtue of the laws of the Equity Holder’s jurisdiction
of incorporation or formation or the Equity Holder’s Organizational Documents, upon dissolution of the Equity Holder; (ix) to
any investment fund or other entity controlling, controlled by, managing or managed by or under common control with the Equity Holder
or its affiliates or who shares a common investment advisor with the Equity Holder; and (x) to a nominee or custodian holding securities
on behalf of a beneficial owner to whom a disposition or transfer would be permissible under this clause (a); provided, however, that
(x) that, in the case of clauses (i) through (vi), these permitted transferees must enter into a written agreement in form
and substance reasonably satisfactory to XPAC agreeing to be bound by this Agreement, and (y) no such Transfer will relieve such
Equity Holder of any of its covenants, agreements or obligations hereunder with respect to the Equity Interests or Newco Shares so transferred,
unless and to the extent actually performed, or will otherwise affect any of the provisions of this Agreement (including any of the representations
and warranties of such Equity Holder hereunder). For purposes of this Agreement, (a) “Transfer” shall mean the
(i) sale of, offer to sell, contract or agreement to sell, hypothecate, pledge, grant of any option to purchase or otherwise dispose
of or agreement to dispose of, directly or indirectly, or establishment or increase of a put equivalent position or liquidation with
respect to or decrease of a call equivalent position within the meaning of Section 16 of the Exchange Act and the rules and
regulations of the SEC promulgated thereunder with respect to, any security, (ii) entry into any swap or other arrangement that
transfers to another, in whole or in part, any of the economic consequences of ownership of any security, whether any such transaction
is to be settled by delivery of such securities, in cash or otherwise, or (iii) public announcement of any intention to effect any
transaction specified in clause (a)(i) or (a)(ii); and (a) “immediate family” shall mean a spouse, domestic partner,
child, grandchild or other lineal descendant (including by adoption), father, mother, brother or sister of the applicable party hereto;
and (c) “affiliate” shall have the meaning set forth in Rule 405 under the Securities Act of 1933, as amended;
and

 

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(b)            the
Founder and the Feffer Parties shall be permitted to carry out a shareholder reorganization in respect of the shareholding vehicles
through which they beneficially own their respective Equity Interests (the “Shareholder Reorganization”), which
may be carried out in a single transaction or in a series of transactions, and the restrictions set
forth in this Section 1.9(b) shall not prohibit Transfers by and among the Founder, the Feffer Parties and any
shareholding vehicles respectively owned by them in connection therewith; provided, that (x) each of the Founder and the Feffer
Parties hereby agree, severally and not jointly, to indemnify and reimburse the Company for any and all liabilities, losses, damages, costs and expenses
incurred by the Company in relation to any Taxes in respect of, arising out of, or in connection with, the transactions carried out
by or on behalf of the Founder or the Feffer Parties, as the case may be, in connection with the Shareholder Reorganization,
(y) such Shareholder Reorganization shall be coordinated by the Company and shall not take place unless, and until, the Company
provides written permission for its implementation, and (z) the beneficial ownership of Equity Interests by the Founder and the
Feffer Parties, respectively, shall remain unchanged as a result of the Shareholder Reorganization. For purposes of this Agreement,
 “Feffer Parties” means, collectively, Fourbac Participações S/A
and its shareholders Campo Limpo Comércio e Representações Ltda, Sollar Comércio e
Participações Ltda., Ultrassom Serviços de Áudio Ltda., Oxumaré Comércio e
Participações Ltda. and any of their respective Affiliates who may become holders of Equity Interests in accordance
with terms of this Agreement.

 

(c)            Schedule
A hereto shall be deemed to be updated to reflect any Transfer permitted under this Agreement.

 

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Article II

REPRESENTATIONS AND WARRANTIES OF THE EQUITY HOLDERS

 

2.1            Each
Equity Holder hereby represents and warrants to Newco, XPAC and PubCo, severally but not jointly, that:

 

(a)            Title.
The Equity Holder holds good, valid and marketable title to the Equity Interests set forth opposite the Equity Holder’s name
on Schedule A, free and clear of any mortgage, pledge, security interest, conditional sale or other title retention
agreement, encumbrance, lien, easement, option, debt, charge, claim or restriction of any kind except for restrictions under the
existing shareholders agreements set forth in Schedule B hereto (collectively, the “Shareholders’ Agreements”),
and as disclosed on Schedule A.

 

(b)            Authorization.
The Equity Holder has full power and authority (including any spouse consent) to enter into this Agreement, and this Agreement, assuming
the due authorization, execution and delivery of this Agreement by all other Parties, constitutes its valid and legally binding obligation,
enforceable in accordance with its terms, except as such enforceability may be limited by bankruptcy Laws, other similar Laws affecting
creditors’ rights and general principles of equity affecting the availability of specific performance and other equitable remedies.

 

(c)            No
Conflict. Neither the execution and delivery of this Agreement by the Equity Holder, nor the performance of the Equity Holder’s
obligations hereunder (i) violates any provision of any Law applicable to the Equity Holder, (ii) if the Equity Holder is not
an individual, would, directly or indirectly, result in any breach of any provision of the Equity Holder’s Organizational Documents,
(iii) conflicts with, result in a breach under or give rise to any right of termination of any document, agreement or instrument
to which the Equity Holder is a party, or (iv) result in the creation or imposition of any mortgage, pledge, security interest,
conditional sale or other title retention agreement, encumbrance, lien, easement, option, debt, charge, claim or restriction of any kind
upon the Equity Interests.

 

(d)            No
Consents. No consent, waiver, approval, Governmental Order or authorization of, or registration, qualification, designation, declaration
or filing with, any court, administrative agency or commission or any other Governmental Authority, instrumentality, agency or commission
or any third party (including a party to any agreement with the Equity Holder or any spouse consent), is required by or with respect
to the execution or delivery of this Agreement or the consummation of the transactions contemplated hereby.

 

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(e)            Ownership.
The Equity Holder is the beneficial and record owner of the Equity Interests set forth next to the Equity Holder’s name on Schedule
A. The Equity Interests set forth on Schedule A collectively constitute 100% of the Equity Holders’ interest in the
Company. The Equity Holder does not own, beneficially or of record, any other equity, equity-linked or similar securities of the Company
or any of its Subsidiaries or have the right to acquire any equity, equity-linked or similar securities of the Company or any of its
Subsidiaries. The Equity Holder acknowledges that the Equity Holder’s agreement to contribute all of the equity securities of the
Company held by the Equity Holder into Newco pursuant to Section 1.1 hereto is a material inducement to Newco’s obligation
to issue the Newco Shares to the Equity Holder or to each of its Shareholder Entity, if any. As such, if after the execution of this
Agreement it is discovered that the Equity Holder is directly or indirectly the owner of any additional membership, equity or ownership
interests not reflected next to such Equity Holder’s name on Schedule A (an “Undisclosed Interest”),
such Equity Holder hereby agrees to contribute, assign, Transfer, convey and deliver to Newco all of such Equity Holder’s right,
title and interest in and to such Undisclosed Interest. By executing this Agreement, each Equity Holder further represents that it does
not have any contract, undertaking, agreement or arrangement with any Person to sell, Transfer or grant participations to such Person
or to any Person, with respect to any of the Equity Interests except as provided for in this Agreement and the other Transaction Documents,
the Shareholders’ Agreements and as disclosed on Schedule A. The Equity Holder has the sole right to vote (and provide consent
in respect of, as applicable) the Equity Interests set forth next to the Equity Holder’s name on Schedule A and, except
for this Agreement and the other Transaction Documents, the Shareholders’ Agreements and as disclosed on Schedule A, the
Equity Holder is not party to or bound by (i) any option, warrant, purchase right, or other Contract that could (either alone or
in connection with one or more events, developments or events (including the satisfaction or waiver of any conditions precedent)) require
the Equity Holder to Transfer any of the Equity Interests or (ii) any voting trust, proxy or other Contract with respect to the
voting or Transfer of any of the Equity Interests.

 

(f)            No
Action. There is no Action pending or, to the Equity Holder’s knowledge, threatened in writing against or involving the Equity
Holder or any of his, her or its Affiliates that, if adversely decided or resolved, would reasonably be expected to adversely affect
the ability of the Equity Holder to perform, or otherwise comply with, any of its covenants, agreements or obligations under this Agreement
in any material respect.

 

(g)            No
Governmental Order or Law. There is no Governmental Order or Law issued by any court of competent jurisdiction or other Governmental
Authority, or other legal restraint or prohibition relating to the Equity Holder or any of his, her or its Affiliates that could reasonably
be expected to adversely affect the ability of the Equity Holder to perform, or otherwise comply with, any of its covenants, agreements
or obligations under this Agreement in any material respect.

 

(h)            Independent
Review and Access to Information. The Equity Holder, on his, her or its own behalf and on behalf of his, her or its Representatives,
acknowledges, represents, warrants and agrees that (i) he, she or it has conducted his, her or its own independent review and analysis
of, and, based thereon, has formed an independent judgment concerning, the business, assets, condition, operations and prospects of,
Newco, the Company, Merger Sub 1, Merger Sub 2, XPAC and PubCo and the transactions contemplated by this Agreement, the Business Combination
Agreement and the other Transaction Documents and (ii) he, she or it has been furnished with or given access to such documents and
information about Newco, the Company, Merger Sub 1, Merger Sub 2, XPAC and PubCo and their respective businesses and operations as he,
she or it and his, her or its Representatives have deemed necessary to enable him, her or it to make an informed decision with respect
to the execution, delivery and performance of this Agreement or the other Transaction Documents to which he, she or it is or will be
a party and the transactions contemplated hereby and thereby.

 

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(i)            No
Further Representations. In entering into this Agreement and the other Transaction Documents to which he, she or it is or will be
a party, the Equity Holder has relied solely on his, her or its own investigation and analysis and the representations and warranties
expressly set forth in the Transaction Documents to which he, she or it is or will be a party and no other representations or warranties
of Newco, the Sponsor, XPAC, Merger Sub 1, Merger Sub 2 or PubCo (including, for the avoidance of doubt, none of the representations
or warranties of XPAC, Merger Sub 1, Merger Sub or PubCo set forth in the Business Combination Agreement or any other Transaction Document)
or any other Person, either express or implied, and the Equity Holder, on his, her or its own behalf and on behalf of his, her or its
Representatives, acknowledges, represents, warrants and agrees that, except for the representations and warranties expressly set forth
in this Agreement or in the other Transaction Documents to which he, she or it is or will be a party, none of Newco, XPAC, Merger Sub
1, Merger Sub or PubCo or any other Person makes or has made any representation or warranty, either express or implied, in connection
with or related to this Agreement, the Business Combination Agreement or the other Transaction Documents or the transactions contemplated
hereby or thereby.

 

Article III

REPRESENTATIONS AND WARRANTIES OF THE COMPANY

 

3.1            The
Company hereby represents and warrants to each Equity Holder that:

 

(a)            Organization.
The Company is a closely held company, duly organized, validly existing and in good standing under the Laws of the Federative Republic
of Brazil and has all requisite corporate power and authority to carry on its business as now conducted and as proposed to be conducted.
As of the Effective Date, the Company is duly qualified to transact business and is in good standing in each jurisdiction in which the
failure to so qualify would have a material adverse effect on its business or properties.

 

(b)            Authorization.
The Company has full power and authority to enter into this Agreement, and this Agreement, assuming the due authorization, execution
and delivery of this Agreement by all other Parties, constitutes a valid and legally binding obligation, enforceable in accordance with
its terms, except as such enforceability may be limited by bankruptcy Laws, other similar Laws affecting creditors’ rights and
general principles of equity affecting the availability of specific performance and other equitable remedies.

 

(c)            No
Conflict. Neither the execution and delivery of this Agreement by the Company nor the performance of the Company’s obligations
hereunder (i) violates any provision of Law applicable to the Company or conflicts with any document, agreement or instrument to
which the Company is a party.

 

Article IV

MISCELLANEOUS

 

4.1            Notices.
Any notice, consent or request to be given in connection with any of the terms or provisions of this Agreement (“Notice”)
shall be in writing and shall be sent or given in accordance with the terms of Section 11.3 of the Business Combination Agreement
to the applicable Party at its principal place of business. Any Notice to any Equity Holder shall be in writing and sent to the applicable
address set forth on the signature page hereto. Any Notice to Newco shall be in writing and sent to the address set forth on the
Newco Joinder Agreement to the Voting and Support Agreement.

 

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4.2            Entire
Agreement. This Agreement and the other agreements referenced herein constitute the entire agreement and understanding of the Parties
hereto in respect of the subject matter hereof and supersede all prior understandings, agreements, or representations by or among the
Parties hereto, written or oral, to the extent they relate in any way to the subject matter hereof or the transactions contemplated hereby.
This Agreement may be amended or modified in whole or in part only by a duly authorized instrument in writing signed by or on behalf
of each of the Parties.

 

4.3            Assignment.
No Party shall assign or delegate (in whole or in part) its rights or obligations under this Agreement without the prior written consent
of the other Parties.

 

4.4            Binding
Nature. This Agreement shall be binding upon and inure to the benefit of the Parties and their respective successors and permitted
assigns and shall be enforceable by the Parties hereto and their respective successors and permitted assigns.

 

4.5            Termination.
This Agreement shall automatically terminate upon the earliest to occur of (a) the Acquisition Closing and (b) the date on
which the Business Combination Agreement is terminated for any reason in accordance with its terms. In the event of a valid termination
of the Business Combination Agreement, this Agreement shall be of no force and effect. No such termination or reversion shall relieve
any Equity Holder from any obligation accruing, or Liability resulting from an intentional breach of this Agreement occurring prior to
such termination or reversion

 

4.6            Miscellaneous.
Sections 1.3, 11.2, 11.7 through 11.9 and 11.16 through 11.17 of the Business Combination Agreement
shall apply mutatis mutandis to this Agreement.

 

[Remainder of this page was intentionally
left in blank. Execution pages follow.]

 

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IN WITNESS WHEREOF, the Parties have executed and delivered this Voting
and Support Agreement as of the date first above written.

 

	 	XPAC:
	 	 
	 	XPAC
    Acquisition Corp.
	 	 
	 	By:	 /s/ Chu Chiu Kong
	 	Name:
    Chu Chiu Kong
	 	Title:
    Chief Executive Officer and Chairman of the Board of Directors

 

[Signature
Page to Voting and Support Agreement]

 

     

     

    

 

	 	PUBCO:
	 	 
	 	SUPERBAC
    PubCo Holdings Inc.
	 	 
	 	By:	 /s/ Wilson Ernesto da Silva
	 	Name:
    Wilson Ernesto da Silva
	 	Title:
    Director

 

[Signature
Page to Voting and Support Agreement]

 

     

     

    

 

	 	COMPANY:
	 	 
	 	SuperBac
    Biotechnology Solutions S.A.
	 	 
	 	By: 	/s/ Luiz Augusto Chacon de Freitas Filho
	 	Name:
    Luiz Augusto Chacon de Freitas Filho
	 	Title:
    Chief Executive Officer

 

[Signature
Page to Voting and Support Agreement]

 

     

     

    

 

	 	EQUITY
    HOLDER:
	 	 
	 	Bio-Gênesis
    Participações S.A.
	 	 
	 	 
	 	By:	 /s/ Luiz Augusto Chacon de Freitas Filho
	 	Name:
    Luiz Augusto Chacon de Freitas Filho
	 	Title:
    Officer

 

[Signature
Page to Voting and Support Agreement]

 

     

     

    

 

	 	EQUITY
    HOLDER:
	 	 
	 	Sommerville
    Investments B.V.
	 	 
	 	 
	 	By:	 /s/ Bruno de Luca Zanatta
	 	Name:
    Bruno de Luca Zanatta
	 	Title: Procurador

 

[Signature
Page to Voting and Support Agreement]

 

     

     

    

 

	 	EQUITY
    HOLDER:
	 	 
	 	Orjen
    Investments Pte. Ltd.
	 	 
	 	 
	 	By:	 /s/ Bruno de Luca Zanatta
	 	Name:
    Bruno de Luca Zanatta
	 	Title: Procurador

 

[Signature
Page to Voting and Support Agreement]

 

     

     

    

 

	 	EQUITY
    HOLDER:
	 	 
	 	SB
    Participações S.A.
	 	 
	 	 
	 	By:	 /s/ Luiz Augusto Chacon de Freitas Filho
	 	Name:
    Luiz Augusto Chacon de Freitas Filho
	 	Title:
    Officer

 

[Signature
Page to Voting and Support Agreement]

 

     

     

    

 

	 	EQUITY
    HOLDER:
	 	 
	 	Fourbac
    Participações S.A.
	 	 
	 	 
	 	By:	 /s/ Marcel Paes de Almeida Piccinno
	 	Name:
    Marcel Paes de Almeida Piccinno
	 	Title:
    Officer
	 	 
	 	By: 	/s/ Maria Cecília Castro Neves Ipiña
	 	Name:
    Maria Cecília Castro Neves Ipiña
	 	Title:
    Legal

 

[Signature
Page to Voting and Support Agreement]

 

     

     

    

 

	 	EQUITY
    HOLDER:
	 	 
	 	 
	 	/s/
    Luiz Augusto Chacon de Freitas Filho
	 	Luiz
    Augusto Chacon de Freitas Filho
	 	 

 

[Signature
Page to Voting and Support Agreement]

 

     

     

    

 

	 	EQUITY
    HOLDER:
	 	 
	 	GIC
    Patrimonial Ltda.
	 	 
	 	 
	 	By: 	/s/ Luiz Augusto de Chacon Freitas
	 	Name:
    Luiz Augusto de Chacon Freitas
	 	Title: Presidente

 

  [Signature Page to Voting and Support Agreement]

 

     

     

    

 

Schedule A

 

Equity Interests

 

[Schedule A has been omitted in accordance with
Item 601(b)(2) of Regulation S-K. XPAC agrees to furnish supplementally a copy of Schedule A to the SEC upon its request.]

 

     

     

    

 

Schedule B

 

Existing Shareholders’ Agreements

 

[Schedule B has been omitted in accordance with
Item 601(b)(2) of Regulation S-K. XPAC agrees to furnish supplementally a copy of Schedule B to the SEC upon its request.]

 

    Schedule B-1

     

    

 

Exhibit A

 

Form of Newco Joinder Agreement to
the Voting and Support Agreement

 

JOINDER AGREEMENT

 

This Joinder Agreement (this “Agreement”)
is entered into as of [●], by and among (i) SUPERBAC PubCo Holdings Inc., an exempted company limited by shares incorporated
under the Laws of the Cayman Islands (“PubCo”), (ii) SuperBac Biotechnology Solutions S.A., a corporation incorporated
under the Laws of Brazil (“Company”), (iii) XPAC Acquisition Corp., an exempted company limited by shares incorporated
under the Laws of the Cayman Islands (“XPAC”) and (iv) [Newco], an exempted company incorporated with limited
liability in the Cayman Islands (“Newco”). Capitalized terms used in this Agreement and not otherwise defined have
the meanings ascribed to such terms in the Voting and Support Agreement (as defined below).

 

RECITALS

 

WHEREAS, on [●], Newco has been
formed; and

 

WHEREAS, pursuant to Section 1.4
of the Voting and Support Agreement (the “Voting and Support Agreement”) entered into as of April 25, 2022
by and among PubCo, the Company, XPAC and the Equity Holders, the Equity Holders shall cause Newco to join as a party to the Voting and
Support Agreement as a Party by entering into and delivering this Agreement.

 

NOW, THEREFORE, intending to be legally
bound, in consideration of the foregoing and the mutual covenants and agreements herein contained, the parties hereto hereby agree as
follows:

 

1.            Representations
and Warranties of Newco. On the date hereof, Newco hereby represents and warrants to each Equity Holder that:

 

(a)            Newco
is a company duly incorporated, validly existing and in good standing under the laws of the Cayman Islands and has all requisite corporate
power and authority to carry on its business as now conducted and as proposed to be conducted. As of the Effective Date, Newco is duly
qualified to transact business and are in good standing in each jurisdiction in which the failure to so qualify would have a material
adverse effect on their business or properties.

 

(b)            Newco
has full power and authority to enter into this Agreement, and this Agreement constitutes a valid and legally binding obligation of Newco,
enforceable against Newco in accordance with its terms, except as such enforceability may be limited by bankruptcy Laws, other similar
Laws affecting creditors’ rights and general principles of equity affecting the availability of specific performance and other
equitable remedies.

 

(c)            Neither
the execution and delivery of this Agreement by Newco nor the performance of Newco’s obligations hereunder (i) violates any
provision of Law applicable to Newco or conflicts with any document, agreement or instrument to which Newco is a party.

 

    Exhibit A-1

     

    

 

2.            Agreements
of Newco.

 

Newco hereby agrees to become a party to the Voting and Support Agreement
and to be bound by the provisions of the Voting and Support Agreement applicable to Newco.

 

3.            Consent.

 

Newco hereby consents to the adoption of the Voting and Support Agreement
and agrees to perform Newco’s obligations herein and therein.

 

4.            Termination.

 

This Agreement shall automatically terminate, without any action of
any party hereto, upon termination of the Voting and Support Agreement in accordance with the terms of the Voting and Support Agreement.
The effect of termination of this Agreement shall be governed by the provisions of Section 4.5 of the Voting and Support
Agreement.

 

5.            Notices
to Newco.

 

All general notices, demands or other communications required or permitted
to be given or made to Newco hereunder or under the Voting and Support Agreement shall comply with the terms of Section 11.3
of the Business Combination Agreement and be addressed and sent to the following addresses and contacts of Newco:

 

[●]

[●]

Email: [●]

Attention: [●]

 

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

 

Skadden, Arps, Slate, Meagher & Flom LLP

Av. Brigadeiro Faria Lima, 3311, 7th Floor

São Paulo, SP 04538-133

Email: Filipe.Areno@skadden.com

Attention: Filipe B. Areno

 

6.            Miscellaneous.

 

The parties hereto hereby agree to incorporate by reference Section XI
of the Business Combination Agreement into this Agreement which shall apply mutatis mutandis to this Agreement.

 

IN WITNESS WHEREOF, the parties hereto have caused this Agreement
to be duly executed as of the date first written above.

 

[Signature Pages Follow]

 

    Exhibit A-2

     

    

 

	 	XPAC:
	 	 
	 	XPAC
    Acquisition Corp.
	 	 
	 	By:	               
	 	Name:
	 	Title:

 

[Signature
Page to the Newco Joinder Agreement to the Voting and Support Agreement]

 

     

     

    

 

	 	PUBCO:
	 	 
	 	SUPERBAC
    PubCo Holdings Inc.
	 	 
	 	By:	               
	 	Name:
	 	Title:

 

[Signature
Page to the Newco Joinder Agreement to the Voting and Support Agreement]

 

     

     

    

 

	 	COMPANY:
	 	 
	 	SuperBac
    Biotechnology Solutions S.A.
	 	 
	 	By:	               
	 	Name:
	 	Title:

 

[Signature
Page to the Newco Joinder Agreement to the Voting and Support Agreement]

 

     

     

    

 

	 	NEWCO:
	 	 
	 	[●]
	 	 
	 	By:	               
	 	Name:
	 	Title:

 

[Signature
Page to the Newco Joinder Agreement to the Voting and Support Agreement]Exhibit 10.3

 

LOCK-UP AGREEMENT

 

This Lock-Up Agreement (this “Agreement”) is made
as of April 25, 2022, by and among (i) SUPERBAC PubCo Holdings Inc., an exempted company limited by shares incorporated under
the laws of the Cayman Islands (“PubCo”), (ii) SuperBac Biotechnology Solutions S.A., a corporation incorporated
under the laws of the Brazil (the “Company”), (iii) XPAC Acquisition Corp., an exempted company limited by shares
incorporated under the laws of the Cayman Islands (“XPAC”), (iv) XPAC Sponsor LLC, a Cayman Islands limited liability
company (the “Sponsor”) and (v) each of the undersigned parties listed on the signature pages hereto under “Equity
Holders” (each such undersigned party, an “Equity Holder”).

 

WHEREAS,
concurrently with the execution of this Agreement, PubCo, the Company, XPAC, BAC1 Holdings Inc., an exempted company limited by shares
incorporated under the laws of the Cayman Islands and BAC2 Holdings Inc., an exempted company limited by shares incorporated under the
laws of the Cayman Islands, entered into a Business Combination Agreement (as it may be amended, supplemented or otherwise modified from
time to time, the “Business Combination Agreement”); and

 

WHEREAS,
in connection with the Business Combination Agreement, the Parties hereto desire to enter into this Agreement, pursuant to which the
Lock-Up Securities (as defined below) shall become subject to limitations on transfer and disposition as set forth herein and the forfeiture
provisions shall apply in respect of Net Vested PubCo Shares as set forth herein.

 

NOW,
THEREFORE, in consideration of the foregoing premises and the mutual covenants and agreements contained herein and for other
good and valuable consideration, the receipt, sufficiency and adequacy of which are hereby acknowledged, intending to be legally bound,
the parties hereto agree as follows:

 

Section 1.                Definitions.
Capitalized terms used and not defined herein shall have the respective meanings assigned to them in the Business Combination Agreement.
In addition, in this Agreement:

 

(a)            “affiliate”
shall have the meaning set forth in Rule 405 under the Securities Act of 1933, as amended;

 

(b)            “Agreement”
has the meaning set forth in the Preamble;

 

(c)            “Company”
has the meaning set forth in the Preamble;

 

(d)            “Equity
Holder” has the meaning set forth in the Preamble;

 

(e)            “immediate
family” shall mean a spouse, domestic partner, child, grandchild or other lineal descendant (including by adoption), father,
mother, brother or sister of the applicable party hereto;

 

(f)            “Liquidation
Event” means a liquidation, merger, capital stock exchange, reorganization, sale of all or substantially all assets or other
similar transaction involving PubCo upon the consummation of which holders of PubCo Securities would be entitled to exchange their PubCo
Securities for cash, securities or other property, at any time following the Acquisition Closing Date;

 

    

     

    

 

(g)            “Lock-Up
Period” means:

 

(i)            with
respect to any Lock-Up Securities held directly or indirectly by the Founder, the period beginning on the Acquisition Closing Date and
ending on the two (2)-year anniversary of the Acquisition Closing Date;

 

(ii)            with
respect to any Lock-Up Securities held directly or indirectly by the Temasek Parties, the period beginning on the Acquisition Closing
Date and ending on the six (6) months anniversary of the Acquisition Closing Date;

 

(iii)            with
respect to any Lock-Up Securities other than Net Vested PubCo Shares held directly or indirectly by any Equity Holder other than the
Founder or the Temasek Parties, the period beginning on the Acquisition Closing Date and ending on the date that is six (6) months
after the Acquisition Closing Date; and

 

(iv)            with
respect to any Lock-Up Securities that are Net Vested PubCo Shares held directly or indirectly by any Equity Holder, the period beginning
on the Acquisition Closing Date and ending on the three (3)-year anniversary of the Acquisition Closing Date;

 

(h)            “Lock-Up
Securities” means, in relation to an Equity Holder, the PubCo Securities held directly or indirectly by the relevant Equity
Holder on the Acquisition Closing Date immediately following the consummation of the Mergers; provided, that such number of PubCo Securities
held directly or indirectly by the Founder as are sold (in one or more transactions) to realize aggregate net sale proceeds of the equivalent
of R$70.0 million (seventy million Brazilian reais) (the “Founder’s Excluded Securities”) shall not be
subject to the restrictions set forth in this Lock-up Agreement, and Transfers of Founder’s Excluded Securities to any Person shall
not be prohibited by the provisions hereunder;

 

(i)            “Parties”
means, collectively, PubCo, the Company, XPAC, the Sponsor, and the Equity Holders; and “Party” means any of the Parties
individually;

 

(j)            “Person”
means any individual, corporation (including any non-profit corporation), general partnership, limited partnership, limited liability
partnership, joint venture, estate, trust, company (including any limited liability company or joint stock company), firm or other enterprise,
association, organization, entity or Governmental Entity;

 

(k)            “Prohibited
Transfer” has the meaning set forth in Section ‎2(c);

 

(l)            “PubCo”
has the meaning set forth in the Preamble;

 

(m)            “PubCo
Securities” means any capital stock, including Class A and Class B ordinary shares, or other ownership or equity
interests in PubCo and any options, warrants or other securities (for the avoidance of doubt, including debt securities) that are directly
or indirectly convertible into, or exercisable or exchangeable for, such capital stock, ownership or equity interests or options (whether
or not such derivative securities are issued by PubCo);

 

(n)            “Sponsor”
has the meaning set forth in the Preamble;

 

    2

     

    

 

(o)            “Transfer”
means the (i) direct or indirect transfer, sale or assignment of, offer to sell, contract or any agreement to sell, hypothecate,
pledge, encumber grant of any option, right or warrant to purchase or otherwise dispose of, or any agreement to transfer or dispose of,
directly or indirectly, or establishment or increase of a put equivalent position or liquidation with respect to or decrease of a call
equivalent position within the meaning of Section 16 of the Exchange Act and the rules and regulations of the SEC promulgated
thereunder with respect to, any security, (ii) entry into any swap or other arrangement that directly or indirectly transfers to
another, in whole or in part, any of the economic consequences of ownership of any security, whether any such transaction is to be settled
by delivery of such securities, in cash or otherwise, or (iii) public announcement of any intention to effect any transaction specified
in clause (i) or (ii); and

 

(p)            “XPAC”
has the meaning set forth in the Preamble.

 

Section 2.     Lock-Up.

 

(a)            Except
with the prior written consent of the Sponsor (such consent to be given or withheld in its sole discretion), during the applicable Lock-Up
Period, each Equity Holder severally (and not jointly and severally) agrees not to (i) Transfer any of its Lock-Up Securities, (ii) enter
into any option, warrant, purchase right or other Contract that could (either alone or in connection with one or more events, developments
or events (including the satisfaction or waiver of any conditions precedent)) require the Equity Holder to Transfer any of its Lock-Up
Securities, or (iii) take any actions in furtherance of any of the matters described in the foregoing clauses (i) or
(ii). Notwithstanding the foregoing or anything to the contrary herein, the foregoing restrictions shall not prohibit a Transfer
(x) if such Equity Holder is not an individual or a trust, to any of its officers or directors, affiliates and its employees or
any family member of any of its officers or directors, any affiliate or family member of any of its officers or directors, any affiliate
of its controlling shareholder or to any members of its controlling shareholder or any of their affiliates, to any investment fund or
other entity controlling, controlled by, managing or managed by or under common control with it or its affiliates or who shares a common
investment advisor with the it, to a nominee or custodian holding securities on behalf of a beneficial owner to whom a disposition or
transfer would be permissible under this clause (x), by virtue of the laws of the state of the entity’s organization and the entity’s
organizational documents upon dissolution of the entity, or in connection with any bona fide mortgage, encumbrance or pledge to a financial
institution in connection with any bona fide loan or debt transaction or enforcement thereunder, including foreclosure thereof, (y) if
such Equity Holder is an individual or a trust, (A) by virtue of laws of descent and distribution upon death of the individual,
(B) pursuant to a court order, such as a qualified domestic relations order, divorce decree or separation agreement, (C) to
any member of such Equity Holder’s immediate family or any trust for the direct or indirect benefit of such Equity Holder or the
immediate family of such Equity Holder, an affiliate of such individual or to a charitable organization or (D) by private sales
or Transfers made in connection with any forward purchase agreement or similar arrangement, or (z) if such Equity Holder is (A) a
Founder, to another Founder, or (B) a Temasek Party, to another Temasek Party; provided, however, that (x) such
Equity Holder shall, and shall cause any such transferee of his, her or its Lock-Up Securities, to enter into a written agreement, in
form and substance reasonably satisfactory to the Sponsor, agreeing to be bound by this Agreement prior and as a condition to the occurrence
of such Transfer, and (y) such transferee shall receive and hold the Lock-Up Securities subject to the provisions of this Agreement
applicable to the transferring Equity Holder, and there shall be no further Transfer of such Lock-Up Securities except in accordance
with the terms of this Agreement and of the agreement entered into between such transferee and the Sponsor. For the avoidance of doubt,
in respect of any Equity Holder that is majority owned or controlled by the Founder that has minority interests, the Lock-Up Period applicable
to Lock-Up Securities held directly or indirectly by an Equity Holder (other than the Founder) in respect of such minority interests
shall be the period specified in paragraph (ii) of the definition of “Lock-Up Period” and not the period applicable
to the Founder.

 

(b)            If
any Transfer is made or attempted in violation of or contrary to the terms of this Agreement (a “Prohibited
Transfer”), such purported Prohibited Transfer shall be null and void ab
initio, and PubCo shall refuse to recognize any such purported transferee of the Lock-Up Securities as one of
PubCo’s equity holders for any purpose.

 

    3

     

    

 

(c)            If,
between the Acquisition Closing Date and the end of the applicable Lock-Up Period, the outstanding PubCo Securities shall have been changed
into a different number of shares or a different class, by reason of any stock dividend, subdivision, reclassification, recapitalization,
split, combination or exchange of shares, or any similar transaction affecting the outstanding PubCo Securities, then any number, value
(including dollar value) or amount contained herein which is based upon the number of PubCo Securities will be equitably adjusted for
such dividend, subdivision, reclassification, recapitalization, split, combination or exchange of shares, or any similar transaction.
Any adjustment under this Section ‎2(c) shall become effective at the date and time that such stock dividend, subdivision,
reclassification, recapitalization, split, combination or exchange of shares, or any similar transaction became effective. For the avoidance
of doubt, no change of units or shares pursuant to the transactions contemplated by the Business Combination Agreement shall constitute
a stock dividend, subdivision, reclassification, recapitalization, split, combination or exchange of shares, or similar transaction requiring
an equitable adjustment.

 

(d)            The
restrictions set forth in this Agreement shall not limit the rights of an Equity Holder to exercise such Equity Holder’s rights
as a stockholder of PubCo during the Lock-Up Period, including the right to vote any Lock-Up Securities.

 

Section 3.     Release.
In the event that (i) PubCo releases, in full or in part, any director or officer of PubCo or any other party subject to a lock-up
agreement and (ii) such release or series of releases cumulatively relates to more than three percent (3%) of then total issued
and outstanding ordinary shares of PubCo (a “Relevant Release”), then the Equity Holders shall be automatically released
from the restrictions on Transfer set forth in this Agreement to the same extent, with respect to the same percentage of the PubCo Securities
of such Equity Holders as the percentage of the PubCo Securities being released with respect to the released party represent with respect
to the PubCo securities held by the released party (calculated as a percentage of the total outstanding shares of PubCo Securities held
by the released party) at the time of the request made for the release by the released party. In the event of any such release, PubCo
shall use its reasonable best efforts to notify the Equity Holders within two (2) Business Days of the occurrence of the release.
The provisions of this Section 3 shall not apply to any Relevant Release in relation to an Equity Holder that held, prior to such
Relevant Release, less than one percent (1%) of then total issued and outstanding ordinary shares of PubCo.

 

Section 4.     Forfeiture
of Net Vested PubCo Shares upon a Forfeiture Event. Each Equity Holder that holds Lock-Up Securities that are Net Vested PubCo Shares
on the Acquisition Effective Time immediately following the consummation of the Mergers agrees that, during the Forfeiture Period, upon
the occurrence of a Forfeiture Event with respect to a Forfeiting Net Vested Holder, such Forfeiting Net Vested Holder shall, without
any action on the part of such Forfeiting Net Vesting Holder, automatically forfeit all of their Lock-Up Securities that are Net Vested
PubCo Shares and such Net Vested PubCo Shares shall be cancelled for no consideration, except as provided in the immediately following
sentence. Notwithstanding the foregoing, such Forfeiting Net Vested Holder shall be entitled to receive from PubCo, no later than ten
(10) Business Days following the occurrence of such Forfeiture Event with respect to such Forfeiting Net Vested Holder, a payment
in cash in an aggregate amount equal to the Aggregate Exercise Price relating to such Lock-Up Securities that are Net Vested PubCo Shares
(as equitably adjusted for stock splits, stock dividends, cash dividends, reorganizations, combinations, recapitalizations and similar
transactions affecting such Net Vested PubCo Shares), plus interest thereon at the IPCA Rate from the Acquisition Closing Date to the
date of such payment.

 

    4

     

    

 

Section 5.     Joinder
Agreement. The Company hereby agrees to use its reasonable best efforts to cause additional Existing Company Shareholders who are
not Parties hereto to join as a party to this Agreement, to the extent practicable, by executing and delivering a joinder (a “Joinder”)
to this Agreement in the form set out in the Exhibit to this Agreement. Pursuant to each such Joinder, any reference in this Agreement
to a covenant, agreement or obligation of an Equity Holder (or any reference to any compliance with, or breach of, any such covenant,
agreement or obligation) shall also constitute a reference to a covenant, agreement or obligation of the Existing Company Shareholder
or Shareholder Entity (as applicable) that has executed such Joinder (or any reference to any compliance with, or breach of, any such
covenant, agreement or obligation).

 

Section 6.     Termination.
This Agreement shall be binding upon each Equity Holder upon such Equity Holder’s execution and delivery of this Agreement, but
this Agreement shall only become effective upon the Acquisition Closing. Notwithstanding anything to the contrary contained herein, in
the event that the Business Combination Agreement is terminated in accordance with its terms prior to the Acquisition Closing, this Agreement
and all rights and obligations of the Parties hereunder shall automatically terminate and be of no further force or effect. If the Acquisition
Closing takes place, the provisions of this Agreement, other than this Section ‎6 and Section ‎11, shall
terminate and be of no further force or effect upon the first to occur of (i) the date of a Liquidation Event and (ii) the
date that all of the Lock-Up Securities are no longer subject to the lock-up restrictions set forth in Section ‎2(a).

 

Section 7.     Specific
Enforcement. The Parties hereto agree that irreparable damage would occur in the event that any of the provisions of this Agreement
were not performed in accordance with their specific terms or were otherwise breached. The Parties further agree that each Party shall
be entitled to seek specific performance of the terms hereof and immediate injunctive relief and other equitable relief to prevent breaches,
or threatened breaches, of this Agreement, without the necessity of proving the inadequacy of money damages as a remedy and without bond
or other security being required, this being in addition to any other remedy to which they are entitled at law or in equity. Each Party
hereby acknowledges and agrees that it may be difficult to prove damages with reasonable certainty, that it may be difficult to procure
suitable substitute performance, and that injunctive relief and/or specific performance will not cause an undue hardship to the Parties.
Each Party hereby further acknowledges that the existence of any other remedy contemplated by this Agreement does not diminish the availability
of specific performance of the obligations hereunder or any other injunctive relief. Each Party hereby further agrees that in the event
of any action by any other Party for specific performance or injunctive relief, the first Party will not assert that a remedy at law
or other remedy would be adequate or that specific performance or injunctive relief in respect of such breach or violation should not
be available on the grounds that money damages are adequate or any other grounds.

 

Section 8.     Entire
Agreement. This Agreement and the other Transaction Documents together constitute the entire agreement and understanding of the parties
hereto in respect of the subject matter hereof and supersede all prior understandings, agreements or representations, both written and
oral, by or among the Parties hereto with respect to the subject matter hereof.

 

Section 9.     Waiver.
Except as otherwise expressly provided herein, no delay, failure or waiver by any party to exercise any right or remedy under this Agreement
and no partial or single exercise of any such right or remedy, will operate to limit, preclude, cancel, waive or otherwise affect such
right or remedy, nor will any single or partial exercise of such right or remedy limit, preclude, impair or waive any further exercise
of such right or remedy or the exercise of any other right or remedy. For purposes of this Agreement, no course of dealing among any
or all of the Parties shall operate as a waiver of the rights or remedies hereof. The rights and remedies herein provided are exclusive,
and not cumulative, of any rights or remedies provided by applicable Law. No provision hereof may be waived otherwise than by a written
instrument signed by the Party or Parties so waiving such provision as contemplated herein.

 

    5

     

    

 

Section 10.     Notices.
Any notice, consent or request to be given in connection with any of the terms or provisions of this Agreement shall be in writing and
shall be sent or given in accordance with the terms of Section 11.3 of the Business Combination Agreement to the applicable
Party at its principal place of business. Any notice to any Equity Holder shall be sent to the address set forth on the signature page hereto.

 

Section 11.     Miscellaneous.

 

(a)            Governing
Law; Consent to Jurisdiction; Waiver of Jury Trial. Section 11.7 and Section 11.8 of the Business Combination
Agreement are incorporated herein by reference, mutatis mutandis.

 

(b)            Severability.
In the event that any term, provision, covenant or restriction of this Agreement, or the application thereof, is held to be illegal,
invalid or unenforceable under any present or future Law: (a) such provision will be fully severable; (b) this Agreement will
be construed and enforced as if such illegal, invalid or unenforceable provision had never comprised a part hereof; (c) the remaining
provisions of this Agreement will remain in full force and effect and will not be affected by the illegal, invalid or unenforceable provision
or by its severance herefrom; and (d) in lieu of such illegal, invalid or unenforceable provision, there will be added automatically
as a part of this Agreement a legal, valid and enforceable provision as similar in terms of such illegal, invalid or unenforceable provision
as may be possible.

 

(c)            Counterparts.
This Agreement, the Transaction Agreements and each other document executed in connection with the Transactions, and the consummation
thereof, may be executed in one or more counterparts, all of which shall be considered one and the same document and shall become effective
when one or more counterparts have been signed by each of the Parties and delivered to the other Parties, it being understood that all
Parties need not sign the same counterpart. Delivery by electronic transmission to counsel for the other Parties of a counterpart executed
by a Party shall be deemed to meet the requirements of the previous sentence.

 

(d)            Titles
and Headings. The titles, captions and table of contents in this Agreement are for reference purposes only, and shall not affect
in any way the meaning or interpretation of this Agreement.

 

(e)            Assignment;
Successors and Assigns; No Third Party Rights. No Party hereto may assign, directly or indirectly, including by operation of law,
either this Agreement or any of its rights, interests, or obligations hereunder without the prior written approval of the other parties.
Subject to the foregoing sentence, this Agreement shall be binding upon and shall inure to the benefit of the Parties hereto and their
respective successors and permitted assigns, and nothing herein, express or implied, is intended to or shall confer upon any other Person
any legal or equitable right, benefit or remedy of any nature whatsoever under or by reason of this Agreement. Any purported assignment
or delegation made in violation of this provision shall be void and of no force or effect.

 

(f)            Amendments
and Modifications. This Agreement may be amended or modified in whole or in part only by a duly authorized agreement in writing in
the same manner as this Agreement, which makes reference to this Agreement and which shall be executed by all the Parties hereto.

 

    6

     

    

 

(g)            Further
Assurances. Each Party hereto shall execute and deliver such additional documents as may be necessary or desirable to effect the
transactions contemplated by this Agreement.

 

[Signature pages follow]

 

    7

     

    

 

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

 

	 	XPAC ACQUISITION CORP.

 

		By:	/s/
                                            Chu Chiu Kong
	 	 	Name: Chu Chiu Kong
	 	 	Title: Chief Executive Officer
                                            and Chairman of the Board of Directors

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	SUPERBAC PUBCO HOLDINGS INC.

 

		By:	/s/
                                            Wilson Ernesto da Silva
	 	 	Name: Wilson Ernesto da Silva
	 	 	Title: Director

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	SUPERBAC BIOTECHNOLOGY SOLUTIONS S.A.

 

	 	By:	/s/ Luiz Augusto Chacon de Freitas Filho
	 	Name: Luiz Augusto Chacon de Freitas Filho
	 	Title: Chief Executive Officer

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	XPAC SPONSOR LLC

 

		By:	/s/ Chu Chiu
                                            Kong
	 	 	Name: Chu Chiu Kong
	 	 	Title: Manager

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	EQUITY HOLDER:
	 	 
	 	BIO-GÊNESIS PARTICIPAÇÕES S.A.

 

	 	By:	/s/ Luiz Augusto Chacon de Freitas Filho
	 	Name: Luiz Augusto Chacon de Freitas Filho
	 	Title: Officer

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	EQUITY HOLDER:
	 	 
	 	SOMMERVILLE INVESTMENTS B.V.

 

	 	By:	/s/ Bruno de Luca Zanatta
	 	Name: Bruno de Luca Zanatta
	 	Title: Procurador

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	EQUITY HOLDER:
	 	 
	 	ORJEN INVESTMENTS PTE. LTD.

 

 

	 	By:	/s/ Bruno de Luca Zanatta
	 	Name: Bruno de Luca Zanatta
	 	Title: Procurador

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	EQUITY HOLDER:
	 	 
	 	SB PARTICIPAÇÕES S.A.

 

	 	By:	/s/ Luiz Augusto Chacon de Freitas Filho
	 	Name: Luiz Augusto Chacon de Freitas Filho
	 	Title: Officer

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	EQUITY HOLDER:
	 	 
	 	FOURBAC PARTICIPAÇÕES S.A.

 

	 	By:	/s/ Marcel Paes de Almeida Piccinno
	 	Name: Marcel Paes de
    Almeida Piccinno 
	 	Title: Officer
	 	 
	 	By:	/s/ Maria Cecília Castro Neves Ipiña
	 	Name:
    Maria Cecília Castro Neves Ipiña 
	 	Title: Legal

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	EQUITY HOLDER:
	 	 
	 	/s/ Daniel Citron
	 	Daniel Citron

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	EQUITY HOLDER:
	 	 
	 	/s/ André Jafferian Neto 
	 	André Jafferian
    Neto

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	EQUITY HOLDER:
	 	 
	 	AJNETO PARTICIPAÇÕES LTDA.

 

	 	By:	/s/ André Jafferian Neto
	 	Name: André
    Jafferian Neto
	 	Title: Board Member

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	EQUITY HOLDER:
	 	 
	 	/s/ Luiz Augusto Chacon de Freitas Filho
	 	Luiz Augusto Chacon de Freitas Filho

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	EQUITY HOLDER:
	 	 
	 	MORUNGABA PARTICIPAÇÕES LTDA.

 

	 	By:	/s/ Renato Ochman
	 	Name: Renato Ochman
	 	Title: Director

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	OPTIONEE:
	 	 
	 	/s/ Mozart Soares Fogaça Junior
	 	Mozart Soares Fogaça Junior

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	OPTIONEE:
	 	 
	 	/s/ Giuliano Pauli 
	 	Giuliano Pauli

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	OPTIONEE:
	 	 
	 	/s/ Wilson Ernesto da Silva

                                                                          

	 	Wilson Ernesto da Silva

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

	 	EQUITY HOLDER:
	 	 
	 	GIC PATRIMONIAL LTDA.

 

		By:	/s/ Luiz Augusto de Chacon Freitas
	 	 	Name: Luiz Augusto de Chacon Freitas
	 	 	Title: Presidente

 

[Signature Page to the Lock-Up Agreement]

 

    

     

    

 

Exhibit

 

JOINDER AGREEMENT

 

This
Joinder Agreement (this “Agreement”) is made as of [●], by [insert Existing Company Shareholder or
Shareholder Entity] (“Joining Equity Holder”), pursuant to, and in accordance with, the Lock-Up Agreement dated
as of April 25, 2022, by and among (i) SUPERBAC PubCo Holdings Inc., an exempted company limited by shares incorporated under
the laws of the Cayman Islands (“PubCo”), (ii) SuperBac Biotechnology Solutions S.A., a corporation incorporated
under the laws of the Brazil (the “Company”), (iii) XPAC Acquisition Corp., an exempted company limited by shares
incorporated under the laws of the Cayman Islands (“XPAC”), (iv) XPAC Sponsor LLC, a Cayman Islands limited liability
company (the “Sponsor”), and (v) each of the Equity Holder named therein (the “Lock-Up Agreement”).
This document shall constitute a Joinder under ‎Section 4 of the Lock-Up Agreement. Capitalized terms used in this Agreement
and not otherwise defined have the meanings ascribed to such terms in the Lock-Up Agreement.

 

RECITALS

 

WHEREAS,
concurrently with the execution of the Lock-Up Agreement, PubCo, XPAC and certain other parties entered into a Business Combination Agreement
(as it may be amended, supplemented or otherwise modified from time to time, the “Business Combination Agreement”);

 

WHEREAS,
in connection with the Business Combination Agreement, the Parties entered into the Lock-Up Agreement, pursuant to which the Lock-Up
Securities became subject to limitations on transfer and disposition as set forth herein; and

 

WHEREAS,
the Joining Equity Holder shall enter into this Agreement pursuant to ‎Section 4 of the Lock-Up Agreement.

 

NOW,
THEREFORE, intending to be legally bound, in consideration of the foregoing and the mutual covenants and agreements herein
contained, the parties hereto hereby agree as follows:

 

1.            Agreements
of the Joining Equity Holder.

 

The Joining Equity Holder hereby agrees to be
bound by the provisions of the Lock-Up Agreement applicable to an Equity Holder. Accordingly, any reference in the Lock-Up Agreement
to a covenant, agreement or obligation of an Equity Holder (or any compliance with, or breach of, any such covenant, agreement or obligation)
shall also constitute a reference to a covenant, agreement or obligation of the Joining Equity Holder (or any compliance with, or breach
of, any such covenant, agreement or obligation).

 

2.            Termination.

 

This Agreement shall automatically terminate,
without any action on the part of any Party, upon termination of the Lock-Up Agreement in accordance with the terms of the Lock-Up Agreement.
The effect of termination of this Agreement shall be governed by the provisions of ‎‎Section 5 of the Lock-Up Agreement.

 

5.            Notices
to Joining Equity Holder.

 

All general notices, demands or other communications
required or permitted to be given or made to the Joining Equity Holder hereunder or under the Lock-Up Agreement shall comply with the
terms of ‎Section 9 of the Lock-Up Agreement and be addressed and sent to the following addresses of the Joining Equity
Holder:

 

    

     

    

 

[●]

[●]

Email: [●]

Attention: [●]

 

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

 

Skadden, Arps, Slate, Meagher & Flom LLP

Av. Brigadeiro Faria Lima, 3311, 7th Floor

São Paulo, SP 04538-133

Email: Filipe.Areno@skadden.com

Attention: Filipe B. Areno

 

6. Miscellaneous.

 

The parties hereto hereby agree to incorporate
by reference ‎Section 10 of the Lock-Up Agreement into this Agreement which shall apply mutatis mutandis to this
Agreement.

 

[Signature
Pages Follow]

 

    

     

    

 

IN WITNESS WHEREOF, the parties hereto have caused
this Agreement to be duly executed as of the date first written above.

 

    

     

    

 

	 	XPAC ACQUISITION CORP.

 

		By:	
	 	 	Name: 
	 	 	Title:

 

	 	[JOINING EQUITY HOLDER]:
 

 

		By:	
	 	 	Name: 
	 	 	Title:

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