Document:

Exhibit 10.1

 

Execution Version

 

SUPPORT AGREEMENT

 

This SUPPORT AGREEMENT (this
 “Agreement”) is made and entered into as of September 27, 2021, by and among SAITECH Limited, a Cayman
Islands exempted company incorporated with limited liability (the “Company”), TradeUP Global Corporation, a
Cayman Islands exempted company incorporated with limited liability (the “Purchaser”), TradeUP Global Sponsor
LLC, a Cayman Islands exempted limited liability company (“Sponsor”), and the undersigned parties who hold Subject
Shares subject to the Letter Agreement (as defined herein)(such parties, the “Insiders” and together with the
Sponsor, the “Founder Holders”).

 

WHEREAS, the Company,
Purchaser, and TGC Merger Sub, a Cayman Islands exempted company (the “Merger Sub”), are concurrently herewith
entering into a Business Combination Agreement (as the same may be amended, restated or supplemented, the “Business Combination
Agreement”; capitalized terms used but not defined herein shall have the meaning ascribed to such terms in the Business
Combination Agreement) pursuant to which, among other things, Merger Sub will be merged with and into Company, with the Company being
the surviving entity and becoming a wholly owned subsidiary of Purchaser; and

 

WHEREAS, each Founder
Holder is, as of the date of this Agreement, the sole legal owner of the number of (i) outstanding Class B ordinary shares of
the Purchaser (“Purchaser Class B Shares”) and (ii) outstanding Class A ordinary shares of the
Purchaser (“Purchaser Class A Shares”) set forth opposite such Founder Holder’s name on Schedule
A hereto, and such Founder Holders do not own any outstanding Units of Purchaser (the “Units”), each consisting
of one Purchaser Class A Share and one-half of one redeemable warrant exercisable for one Purchaser Class A Share (the “Purchaser
Public Warrants”) (such Purchaser Class B Shares and Purchaser Class A Shares owned by the Founder Holders, together
with any other Purchaser Class B Shares or Purchaser Class A Shares acquired by a Founder Holder after the date of this Agreement
and during the term of this Agreement, being collectively referred to herein as the “Subject Shares”); and

 

WHEREAS, as a condition
to their willingness to enter into the Business Combination Agreement, Purchaser and the Company have requested that each Founder Holder
enter into this Agreement.

 

NOW, THEREFORE, in
consideration of the premises set forth above, which are incorporated in this Agreement as if fully set forth below, and the representations,
warranties, covenants and agreements contained in this Agreement and the Business Combination Agreement, and intending to be legally bound
hereby, the parties hereto agree as follows:

 

ARTICLE I

 

Representations and Warranties of Each Founder
Holder

 

Each Founder Holder hereby
represents and warrants, severally and not jointly, to the Company and the Purchaser as follows:

 

1.1            Organization
and Standing; Authorization. Such Founder Holder, (a) if a natural person, is of legal age to execute this Agreement and is legally
competent to do so, and (b) if the Founder Holder is not a natural person, (i) has been duly organized and is validly existing
and in good standing under the Laws of the Cayman Islands, (ii) has all requisite corporate power and authority to own, lease and
operate its properties and to carry on its business as now being conducted, (iii) has all requisite power and authority to execute
and deliver this Agreement, to perform its obligations hereunder and to consummate the transactions contemplated hereby and (iv) is
duly qualified or licensed and in good standing to do business in each jurisdiction in which the character of the property owned, leased
or operated by it or the nature of the business conducted by it makes such qualification or licensing necessary. If the Founder Holder
is not a natural person, the execution and delivery of this Agreement and the consummation of the transactions contemplated hereby have
been duly and validly authorized and no other corporate proceedings on the part of such Founder Holder are necessary to authorize the
execution and delivery of this Agreement or to consummate the transactions contemplated hereby.

 

    

     

    

 

1.2            Binding
Agreement. This Agreement has been or shall be when delivered, duly and validly executed and delivered by such Founder Holder and,
assuming the due authorization, execution and delivery of this Agreement by the other parties hereto, constitutes, or when delivered shall
constitute, the valid and binding obligation of Sponsor, enforceable against such Founder Holder in accordance with its terms, subject
to the Enforceability Exceptions.

 

1.3            Governmental
Approvals. No Consent of or with any Governmental Authority on the part of such Founder Holder is required to be obtained or made
in connection with the execution, delivery or performance by such Founder Holder of this Agreement or the consummation by such Founder
Holder of the transactions contemplated hereby, other than (a) applicable requirements, if any, of the Securities Act, the Exchange
Act, and/ or any state “blue sky” securities Laws, and the rules and regulations thereunder and (b) where the failure
to obtain or make such Consents or to make such filings or notifications has not had, and would not reasonably be expected to have, individually
or in the aggregate, a material adverse effect on the ability of such Founder Holder to enter into and perform this Agreement and to consummate
the transactions contemplated hereby.

 

1.4            Non-Contravention.
The execution and delivery of this Agreement, the consummation of the transactions contemplated hereby and compliance with any of the
provisions hereof by such Founder Holder will not (a) conflict with or violate any provision of the Organizational Documents of such
Founder Holder, if applicable, (b) conflict with or violate any Law, Order or Consent applicable to such Founder Holder or any of
its properties or assets, or (c) (i) violate, conflict with or result in a breach of, (ii) constitute a default (or an
event which, with notice or lapse of time or both, would constitute a default) under, (iii) result in the termination, withdrawal,
suspension, cancellation or modification of, (iv) accelerate the performance required by such Founder Holder under, (v) result
in a right of termination or acceleration under, (vi) give rise to any obligation to make payments or provide compensation under,
(vii) result in the creation of any Lien (other than Permitted Lien) upon any of the properties or assets of such Founder Holder
under, (viii) give rise to any obligation to obtain any third party Consent from any Person or (ix) give any Person the right
to declare a default, exercise any remedy, accelerate the maturity or performance, cancel, terminate or modify any right, benefit, obligation
or other term under, any of the terms, conditions or provisions of, any material Contract of such Founder Holder, except for any deviations
from any of the foregoing clauses (b) or (c) that has not had, and would not reasonably be expected to have, individually or
in the aggregate, a material adverse effect on the ability of such Founder Holder to enter into and perform this Agreement and to consummate
the transactions contemplated hereby.

 

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1.5            Subject
Shares. As of the date of this Agreement, such Founder Holder has beneficial ownership of the Subject Shares set forth opposite such
Founder Holder’s name on Schedule A hereto, and all such Subject Shares are owned by such Founder Holder free and clear of
all liens or encumbrances, other than liens or encumbrances pursuant to this Agreement, the Organizational Documents of Purchaser or applicable
federal or state securities laws. Such Founder Holder does not legally own any Purchaser Shares other than the Subject Shares. Such Founder
Holder has the sole right to vote the Subject Shares, and none of the Subject Shares is subject to any voting trust or other agreement,
arrangement or restriction with respect to the voting of the Subject Shares, except as contemplated by this Agreement or the Organizational
Documents of the Purchaser.

 

1.6            Business
Combination Agreement. Such Founder Holder understands and acknowledges that Purchaser and the Company are entering into the Business
Combination Agreement in reliance upon Such Founder Holder’s execution and delivery of this Agreement. Such Founder Holder has received
a copy of the Business Combination Agreement and is familiar with the provisions of the Business Combination Agreement.

 

ARTICLE II

 

Representations and Warranties of Purchaser

 

Purchaser hereby represents
and warrants to the Founder Holders and the Company as follows:

 

2.1            Organization
and Standing. Purchaser is an exempted company duly incorporated, validly existing and in good standing under the Laws of the Cayman
Islands. Purchaser has all requisite corporate power and authority to own, lease and operate its properties and to carry on its business
as now being conducted. Purchaser is duly qualified or licensed and in good standing to do business in each jurisdiction in which the
character of the property owned, leased or operated by it or the nature of the business conducted by it makes such qualification or licensing
necessary.

 

2.2            Authorization;
Binding Agreement. Purchaser has all requisite corporate power and authority to execute and deliver this Agreement, to perform its
obligations hereunder and to consummate the transactions contemplated hereby. The execution and delivery of this Agreement and the consummation
of the transactions contemplated hereby have been duly and validly authorized by the board of directors of Purchaser and no other corporate
proceedings on the part of Purchaser are necessary to authorize the execution and delivery of this Agreement or to consummate the transactions
contemplated hereby. This Agreement has been or shall be when delivered, duly and validly executed and delivered by Purchaser and, assuming
the due authorization, execution and delivery of this Agreement by the other parties hereto, constitutes, or when delivered shall constitute,
the valid and binding obligation of Purchaser, subject to the Enforceability Exceptions.

 

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2.3            Governmental
Approvals. No Consent of or with any Governmental Authority on the part of Purchaser is required to be obtained or made in connection
with the execution, delivery or performance of this Agreement or the consummation by Purchaser of the transactions contemplated hereby,
other than (a) applicable requirements, if any, of the Securities Act, the Exchange Act, and/ or any state “blue sky”
securities Laws, and the rules and regulations thereunder and (b) where the failure to obtain or make such Consents or to make
such filings or notifications has not had, and would not reasonably be expected to have, individually or in the aggregate, a material
adverse effect on the ability of Purchaser to enter into and perform this Agreement and to consummate the transactions contemplated hereby.

 

2.4            Non-Contravention.
The execution and delivery of this Agreement, the consummation of the transactions contemplated hereby and compliance with any of the
provisions hereof by Purchaser will not (a) conflict with or violate any provision of Organizational Documents of Purchaser, (b) conflict
with or violate any Law, Order or Consent applicable to Purchaser or any of its properties or assets, or (c) (i) violate, conflict
with or result in a breach of, (ii) constitute a default (or an event which, with notice or lapse of time or both, would constitute
a default) under, (iii) result in the termination, withdrawal, suspension, cancellation or modification of, (iv) accelerate
the performance required by Purchaser under, (v) result in a right of termination or acceleration under, (vi) give rise to any
obligation to make payments or provide compensation under, (vii) result in the creation of any Lien (other than Permitted Lien) upon
any of the properties or assets of Purchaser under, (viii) give rise to any obligation to obtain any third party Consent from any
Person or (ix) give any Person the right to declare a default, exercise any remedy, accelerate the maturity or performance, cancel,
terminate or modify any right, benefit, obligation or other term under, any of the terms, conditions or provisions of, any material Contract
of Purchaser, except for any deviations from any of the foregoing clauses (b) or (c) that has not had, and would not reasonably
be expected to have, individually or in the aggregate, a material adverse effect on the ability of Purchaser to enter into and perform
this Agreement and to consummate the transactions contemplated hereby.

 

ARTICLE III

 

Representations and Warranties of the Company

 

The Company hereby represents
and warrants to the Founder Holders and Purchaser as follows:

 

3.1            Organization
and Standing. The Company is an exempted company duly incorporated, validly existing and in good standing under the Laws of the Cayman
Islands. The Company has all requisite corporate power and authority to own, lease and operate its properties and to carry on its business
as now being conducted. The Company is duly qualified or licensed and in good standing to do business in each jurisdiction in which the
character of the property owned, leased or operated by it or the nature of the business conducted by it makes such qualification or licensing
necessary.

 

3.2            Authorization;
Binding Agreement. The Company has all requisite corporate power and authority to execute and deliver this Agreement, to perform its
obligations hereunder and to consummate the transactions contemplated hereby. The execution and delivery of this Agreement and the consummation
of the transactions contemplated hereby have been duly and validly authorized by the board of directors and shareholders of the Company
and no other corporate proceedings on the part of the Company are necessary to authorize the execution and delivery of this Agreement
or to consummate the transactions contemplated hereby. This Agreement has been or shall be when delivered, duly and validly executed and
delivered by the Company and, assuming the due authorization, execution and delivery of this Agreement by the other parties hereto, constitutes,
or when delivered shall constitute, the valid and binding obligation of the Company, enforceable against the Company in accordance with
its terms, subject to the Enforceability Exceptions.

 

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3.3            Governmental
Approvals. No Consent of or with any Governmental Authority on the part of the Company is required to be obtained or made in connection
with the execution, delivery or performance by the Company of this Agreement or the consummation by the Company of the transactions contemplated
hereby, other than (a) applicable requirements, if any, of the Securities Act, the Exchange Act, and/ or any state “blue sky”
securities Laws, and the rules and regulations thereunder and (b) where the failure to obtain or make such Consents or to make
such filings or notifications has not had, and would not reasonably be expected to have, individually or in the aggregate, a material
adverse effect on the ability of the Company to enter into and perform this Agreement and to consummate the transactions contemplated
hereby.

 

3.4            Non-Contravention.
The execution and delivery of this Agreement, the consummation of the transactions contemplated hereby and compliance with any of the
provisions hereof by the Company will not (a) conflict with or violate any provision of Organizational Documents of the Company,
(b) conflict with or violate any Law, Order or Consent applicable to the Company or any of its properties or assets, or (c) (i) violate,
conflict with or result in a breach of, (ii) constitute a default (or an event which, with notice or lapse of time or both, would
constitute a default) under, (iii) result in the termination, withdrawal, suspension, cancellation or modification of, (iv) accelerate
the performance required by the Company under, (v) result in a right of termination or acceleration under, (vi) give rise to
any obligation to make payments or provide compensation under, (vii) result in the creation of any Lien (other than Permitted Lien)
upon any of the properties or assets of the Company under, (viii) give rise to any obligation to obtain any third party Consent from
any Person or (ix) give any Person the right to declare a default, exercise any remedy, accelerate the maturity or performance, cancel,
terminate or modify any right, benefit, obligation or other term under, any of the terms, conditions or provisions of, any material Contract
of the Company, except for any deviations from any of the foregoing clauses (b) or (c) that has not had, and would not reasonably
be expected to have, individually or in the aggregate, a material adverse effect on the ability of the Company to enter into and perform
this Agreement and to consummate the transactions contemplated hereby.

 

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ARTICLE IV

 

Agreement to Vote; Certain Other Covenants of
the Founder Holders

 

Each Founder Holder covenants
and agrees with the Company during the term of this Agreement as follows:

 

4.1            Agreement
to Vote.

 

(a)            In
Favor of Merger. At any meeting of the shareholders of Purchaser called to seek the Required Purchaser Shareholder Approval with respect
to the Purchaser Shareholder Approval Matters, or at any adjournment thereof, or in connection with any written consent of the shareholders
of Purchaser or in any other circumstances upon which a vote, consent or other approval with respect to the Business Combination Agreement,
any other Ancillary Documents, the Merger, or any other Transaction is sought, each Founder Holder shall (i), if a meeting is held, appear
at such meeting or otherwise cause the Subject Shares to be counted as present at such meeting for purposes of establishing a quorum,
and (ii) vote or cause to be voted (including by class vote and/or written consent, if applicable) the Subject Shares in favor of
granting the Required Purchaser Shareholder Approval or, if there are insufficient votes in favor of granting the Required Purchaser Shareholder
Approval, in favor of the adjournment such meeting of the shareholders of Purchaser to a later date but not past the Outside Date.

 

(b)            Against
Other Transactions. At any meeting of shareholders of Purchaser or at any adjournment thereof, or in connection with any written consent
of the shareholders of Purchaser or in any other circumstances upon which such Founder Holder’s vote, consent or other approval
is sought, such Founder Holder shall vote (or cause to be voted) the Subject Shares (including by withholding class vote and/or written
consent, if applicable) against (i) any business combination agreement, merger agreement or merger (other than the Business Combination
Agreement and the Merger), scheme of arrangement, business combination, consolidation, combination, sale of substantial assets, reorganization,
recapitalization, dissolution, liquidation or winding up of or by Purchaser or any public offering of any shares of Purchaser, any of
its material Subsidiaries, or, in case of a public offering only, a newly-formed holding company of Purchaser or such material Subsidiaries,
other than in connection with the Transactions, (ii) any Acquisition Proposal relating to an Alternative Transaction with respect
to Purchaser, and (iii) other than any amendment to Organizational Documents of Purchaser permitted under Section 2.2 and Section 2.3
of the Business Combination Agreement (and required as the Amended Purchaser Charter as a condition to closing under Section 7.2(e)(v) and
Section 7.3(f) of the Business Combination Agreement), any amendment of Organizational Documents of Purchaser or other proposal
or transaction involving Purchaser or any of its Subsidiaries, which, in each of cases (i) and (iii) of this sentence, would
be reasonably likely to in any material respect impede, interfere with, delay or attempt to discourage, frustrate the purposes of, result
in a breach by Purchaser of, prevent or nullify any provision of the Business Combination Agreement or any other Ancillary Document, the
Merger, or any other Transaction or change in any manner the voting rights of any class of Purchaser’s share capital.

 

(c)            Revoke
Other Proxies. Such Founder Holder represents and warrants that any proxies heretofore given in respect of the Subject Shares that
may still be in effect are not irrevocable, and such proxies have been or are hereby revoked, other than the voting and other arrangements
under the Organizational Documents of Purchaser.

 

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4.2            No
Transfer. Other than (x) pursuant to this Agreement, (y) upon the consent of the Company or (z) to an Affiliate of
such Founder Holder (provided that such Affiliate shall enter into a written agreement, in form and substance reasonably satisfactory
to Purchaser, agreeing to be bound by this Agreement to the same extent as such Founder Holder was with respect to such transferred Subject
Shares), from the date of this Agreement until the date of termination of this Agreement, such Founder Holder shall not, directly or indirectly,
(i) (a) sell, offer to sell, contract or agree to sell, hypothecate, pledge, grant any option, right or warrant to purchase
or otherwise transfer, dispose of or agree to transfer or dispose of, directly or indirectly, or establish or increase a put equivalent
position or liquidate or decrease a call equivalent position within the meaning of Section 16 of the Exchange Act, and the rules and
regulations of the Securities and Exchange Commission promulgated thereunder, any Subject Share, (b) enter into any swap or other
arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any Subject Shares, whether
any such transaction is to be settled by delivery of such securities, in cash or otherwise, or (c) publicly announce any intention
to effect any transaction specified in clause (a) or (b) (the actions specified in clauses (a)-(c), collectively, “Transfer”),
other than pursuant to the Merger, (ii) grant any proxies or enter into any voting arrangement, whether by proxy, voting agreement,
voting trust, voting deed or otherwise (including pursuant to any loan of Subject Shares), or enter into any other agreement, with respect
to any Subject Shares, in each case, other than as set forth in this Agreement or the voting and other arrangements under the Organizational
Documents of Purchaser, (iii) take any action that would make any representation or warranty of such Founder Holder herein untrue
or incorrect, or have the effect of preventing or disabling such Founder Holder from performing its obligations hereunder, or (iv) commit
or agree to take any of the foregoing actions or take any other action or enter into any Contract that would reasonably be expected to
make any of its representations or warranties contained herein untrue or incorrect or would have the effect of preventing or delaying
such Founder Holder from performing any of its obligations hereunder. Any action attempted to be taken in violation of the preceding sentence
will be null and void. Such Founder Holder agrees with, and covenants to, Purchaser and the Company that such Founder Holder shall not
request that Purchaser register the Transfer (by book-entry or otherwise) of any certificated or uncertificated interest representing
any of the Subject Shares.

 

4.3            Waiver
of Rights of Class B Ordinary Shares of the Company. Such Founder Holder hereby irrevocably waives the anti-dilution adjustments
set forth in Section 17.3 of Purchaser’s Amended and Restated Memorandum and Articles of Association in connection with the
issuance of Class A ordinary shares and Class B ordinary shares of the Purchaser pursuant to the Business Combination Agreement
or any other issuance of equity interests or securities exchangeable for, or convertible into, such equity interests by the Purchaser
during the Interim Period.

 

4.4            Waiver
of Dissenters’ Rights. Such Founder Holder hereby irrevocably waives, and agrees not to exercise or assert, any dissenters’
rights under Section 238 of the Cayman Act and any other similar statute in connection with the Merger and the Business Combination
Agreement.

 

4.5            No
Redemption. Such Founder Holder irrevocably and unconditionally agrees that, from the date hereof and until the termination of this
Agreement, such Founder Holder shall not elect to cause Purchaser to redeem any Subject Shares now or at any time legally or beneficially
owned by such Founder Holder, or submit or surrender any of its Subject Shares for redemption, in connection with the transactions contemplated
by the Business Combination Agreement or otherwise.

 

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4.6            New
Shares. In the event that prior to the Closing (i) any Purchaser Shares or other securities are issued or otherwise distributed
to such Founder Holder pursuant to any stock dividend or distribution, or any change in any of the Purchaser Shares or other share capital
of Purchaser by reason of any stock split-up, recapitalization, combination, exchange of shares or the like, (ii) such Founder Holder
acquires legal or beneficial ownership of any Purchaser Shares after the date of this Agreement, including upon exercise of options or
settlement of restricted share units or (iii) such Founder Holder acquires the right to vote or share in the voting of any Purchaser
Share after the date of this Agreement (collectively, the “New Securities”), the terms “Subject Shares”
shall be deemed to refer to and include such New Securities (including all such stock dividends and distributions and any securities into
which or for which any or all of the Subject Shares may be changed or exchanged into).

 

ARTICLE V

 

Additional Agreements of the Parties

 

5.1            Letter
Agreement. Each Founder Holder and Purchaser hereby agree that from the date hereof until the termination of this Agreement, none
of them shall, or shall agree to, amend, modify or vary that certain letter agreement dated April 28, 2021 by and among the Founder
Holders and Purchaser (the “Letter Agreement”), except as otherwise provided for under this Agreement, the Business
Combination Agreement or any Ancillary Document.

 

5.2            Mutual
Release.

 

(a)            Founder
Holder Release. Sponsor, on its own behalf and on behalf of each of its Affiliates (other than Purchaser or any of Purchaser’s
Subsidiaries), and each other Founder Holder on its own behalf, and each of its and their successors, assigns and executors (each, a “Sponsor
Releasor”), effective as at the Merger Effective Date, shall be deemed to have, and hereby does, irrevocably, unconditionally,
knowingly and voluntarily release, waive, relinquish and forever discharge the Company, Purchaser, their respective Subsidiaries and each
of their respective successors, assigns, heirs, executors, officers, directors, partners, managers and employees (in each case in their
capacity as such) (each, a “Sponsor Releasee”), from (i) any and all obligations or duties the Company,
Purchaser or any of their respective Subsidiaries has prior to or as of the Merger Effective Date to such Sponsor Releasor or (ii) all
claims, demands, Liabilities, defenses, affirmative defenses, setoffs, counterclaims, actions and causes of action of whatever kind or
nature, whether known or unknown, which any Sponsor Releasor has prior to or as of the Merger Effective Date, against any Sponsor Releasee
arising out of, based upon or resulting from any Contract, transaction, event, circumstance, action, failure to act or occurrence of any
sort or type, whether known or unknown, and which occurred, existed, was taken, permitted or begun prior to the Merger Effective Date
(except in the event of fraud on the part of a Sponsor Releasee); provided, however, that nothing contained in this Section 5.2(a) shall
release, waive, relinquish, discharge or otherwise affect the rights or obligations of any party (i) arising under this Agreement,
the Business Combination Agreement, the Ancillary Documents, or Purchaser’s Organizational Documents, (ii) for indemnification
or contribution, in any Sponsor Releasor’s capacity as an officer or director of Purchaser, (iii) arising under any then-existing
insurance policy of Purchaser, (iv) pursuant to a contract and/or Purchaser policy, to reimbursements for reasonable and necessary
business expenses incurred and documented prior to the Merger Effective Date, or (v) for any claim for fraud.

 

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(b)            Company
Release. Each of the Company, Purchaser and their respective Subsidiaries and each of its and their successors, assigns and executors
(each, a “Company Releasor”), effective as at the Merger Effective Date, shall be deemed to have, and hereby
does, irrevocably, unconditionally, knowingly and voluntarily release, waive, relinquish and forever discharge each Founder Holder and
its respective successors, assigns, heirs, executors, officers, directors, partners, members, managers and employees (in each case in
their capacity as such) (each, a “Company Releasee”), from (i) any and all obligations or duties such Company
Releasee has prior to or as of the Merger Effective Date to such Company Releasor, (ii) all claims, demands, Liabilities, defenses,
affirmative defenses, setoffs, counterclaims, actions and causes of action of whatever kind or nature, whether known or unknown, which
any Company Releasor has, may have or might have or may assert now or in the future, against any Company Releasee arising out of, based
upon or resulting from any Contract, transaction, event, circumstance, action, failure to act or occurrence of any sort or type, whether
known or unknown, and which occurred, existed, was taken, permitted or begun prior to the Merger Effective Date (except in the event of
fraud on the part of a Company Releasee); provided, however, that nothing contained in this Section 5.2(b) shall
release, waive, relinquish, discharge or otherwise affect the rights or obligations of any party (i) arising under this Agreement,
the Business Combination Agreement or the Ancillary Documents, or (ii) for any claim for fraud.

 

5.3            Termination.
This Agreement shall terminate upon the earliest of (i) the Merger Effective Date (provided, however, that upon such
termination, Section 5.3, Section 6.2, this Section 6.3, Section 6.4, Section 7.1
and Section 7.2 shall survive indefinitely) and (ii) the termination of the Business Combination Agreement in accordance
with its terms, and upon such termination, no party shall have any liability hereunder other than for its willful and material breach
of this Agreement prior to such termination.

 

5.4            Additional
Matters. Each Founder Holder shall, from time to time, (i) execute and deliver, or cause to be executed and delivered, such additional
or further consents, documents and other instruments as Purchaser or the Company may reasonably request for the purpose of effectively
carrying out the transactions contemplated by this Agreement, the Business Combination Agreement and the other Ancillary Documents and
(ii) refrain from exercising any veto right, consent right or similar right (whether under the Organizational Documents of Purchaser
or the Cayman Act) which would impede, disrupt, prevent or otherwise adversely affect the consummation of the Merger or any other Transaction.

 

ARTICLE VI

 

General Provisions

 

6.1            Notice.
All notices and other communications hereunder shall be in writing and shall be deemed given if delivered personally or sent by overnight
courier (providing proof of delivery) to the Company and Purchaser in accordance with Section 10.1 of the Business Combination Agreement
and to such Founder Holder at its address set forth set forth on Schedule A hereto (or at such other address for a party as shall
be specified by like notice).

 

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6.2            Governing
Law. This Agreement and all Actions (whether in contract, tort or otherwise) that may be based upon, arise out of or relate to this
Agreement or the negotiation, execution or performance hereof (including any claim or cause of action based upon, arising out of or related
to any representation or warranty made in or in connection with this Agreement or as an inducement to enter into this Agreement) shall
be governed by the Laws of the Cayman Islands (without giving effect to choice of law principles thereof).

 

6.3            Miscellaneous.
The provisions of Article X (other than the first sentence of Section 10.4) of the Business Combination Agreement are incorporated
herein by reference, mutatis mutandis, as if set forth in full herein.

 

[Signature pages follow]

 

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IN WITNESS WHEREOF, each party
has duly executed this Agreement, all as of the date first written above.

 

	 	SAITECH LIMITED
	 	 
	 	 
	 	Signature:	/s/ Li Risheng
	 	Name:	 Li Risheng
	 	Title:	 Director

 

[Signature Page to Sponsor Support Agreement]

 

    

     

    

 

IN WITNESS WHEREOF, each party
has duly executed this Agreement, all as of the date first written above.

 

	 	TRADEUP GLOBAL CORPORATION
	 	 
	 	 
	 	Signature:	/s/ Huang Lei          
	 	Name:	 Huang Lei
	 	Title:	 Co-Chief Executive Officer

 

[Signature Page to
Sponsor Support Agreement]

 

    

     

    

 

IN WITNESS WHEREOF, each party
has duly executed this Agreement, all as of the date first written above.

 

	 	TRADEUP GLOBAL SPONSOR LLC
	 	 
	 	 
	 	Signature:	/s/ Jianwei Li       
	 	Name:	 Jianwei Li
	 	Title:	 Manager

 

[Signature Page to
Sponsor Support Agreement]

 

    

     

    

 

IN WITNESS WHEREOF, each party
has duly executed this Agreement, all as of the date first written above.

 

	 	MICHAEL DAVIDOV
	 	 
	 	 
	 	/s/ Michael Davidov
	 	 
	 	 
	 	TAO JIANG
	 	 
	 	 
	 	/s/ Tao Jiang
	 	 
	 	 
	 	DAVID XIANGLIN LI
	 	 
	 	 
	 	/s/ David Xianglin Li

 

[Signature Page to Sponsor Support Agreement]

 

    

     

    

 

Schedule A

 

	Name of Founder Holder	 	Number of
 Purchaser
 Class B Shares	 	Number of
 Purchaser
 Class A Shares	 	 	Number of
 Purchaser
 Public
 Warrants	 
	TradeUP Global Sponsor LLC	 	212,247	 	1,074,780	 	 	0	 
	Michael Davidov	 	20,000	 	0	 	 	0	 
	Tao Jiang	 	20,000	 	0	 	 	0	 
	David Xianglin Li	 	20,000	 	0	 	 	0	 

 

Addresses for Notice:

 

TradeUP Global Sponsor LLC

c/o TradeUP Global Corporation

437 Madison Avenue, 27th Floor

New York, New York 10022

Attn: Jianwei Li

Email: Jianwei@zhenchengcap.com

 

MICHAEL DAVIDOV

c/o TradeUP Global Corporation

437 Madison Avenue, 27th Floor

New York, New York 10022

Attn: Michael Davidov

Email: michaeldavidov@gmail.com

 

TAO JIANG

c/o TradeUP Global Corporation

437 Madison Avenue, 27th Floor

New York, New York 10022

Attn: Tao Jiang

Email: jiangtao@csdn.net

 

DAVID XIANGLIN LI

c/o TradeUP Global Corporation

437 Madison Avenue, 27th Floor

New York, New York 10022

Attn: David Xianglin Li

Email: Davidx.li@yahoo.com

  

    Sch A-1Exhibit 10.2

 

EXECUTION COPY

 

September 27, 2021

 

TradeUp Global Corporation

437 Madison Ave., 27th Floor

New York, New York 10022

 

RE: Letter Agreement Amendment

 

Ladies and Gentlemen:

 

This letter amends (this “Letter
Agreement Amendment”) that certain letter agreement, dated April 28, 2021, by and among Tradeup Global Corporation (the
 “Company”), TradeUp Global Sponsor LLC (“Sponsor”), Sponsor, and David X. Li, Tao Jiang and Michael
Davidov (each an “Insider and collectively, the “Insiders”) (the “Letter Agreement”).
Capitalized terms used herein and not otherwise defined shall have the meanings ascribed to such terms in the Combination Agreement (as
defined below).

 

This Letter Agreement Amendment
is being entered into simultaneously with, among other documents, that certain Business Combination Agreement, dated the date hereof (the
 “Combination Agreement”), by and among the Company, TGC Merger Sub, a wholly owned subsidiary of the Company (“Merger
Sub”), and SAITECH Limited (“Target”), pursuant to which, among other things, Merger Sub would merge with
and into Target, with Target being the surviving company and becoming a wholly owned subsidiary of the Company (the “Merger”),
subject to the terms and conditions set forth in the Combination Agreement.

 

In order to induce the Target
to enter into the Combination Agreement and proceed with the Merger and for other good and valuable consideration, the receipt and sufficiency
of which are hereby acknowledged, each of the Company, Sponsor and Insiders hereby agree as follows:

 

1.            By
execution of this Letter Agreement Amendment, Sponsor hereby consents to the Company’s entry into the Combination Agreement as required
pursuant to Paragraph 3 of the Letter Agreement.

 

2.            If
a Closing of the Combination Agreement occurs, Paragraph 5 of the Letter Agreement will be deleted as of the Merger Effective Date, and
instead Sponsor and the Insiders shall be subject to the terms of the Purchaser Lock-Up Agreements in the form attached to the Combination
Agreement, which shall be executed and delivered by Sponsor and each of the Insiders in connection with the Closing in accordance with
the terms of the Combination Agreement.

 

    

     

    

 

3.            The
Letter Agreement is hereby amended to add a new Paragraph 19 relating to Sponsor funding obligations:

 

“19.     Sponsor
Funding Obligations.

 

(a)            If
as of the date hereof, the cash on hand at the Company as of such date is insufficient to fund the Company’s ordinary working capital
expenses of the Company and Merger Sub though the earlier of Closing or the termination of the Combination Agreement in accordance with
its terms, then Sponsor shall fund (or cause its Affiliates (other than the Company or any Subsidiary of the Company) to fund) any such
shortfall in working capital. Subject to the limitations set forth in Paragraph 19(b) below. funding may be made at the election
of the Purchaser in equity, debt or convertible debt; provided that, (i) any such working capital funding for additional equity
or convertible debt shall (A) not exceed $1,200,000 and (B) shall be for the issuance of Class A Ordinary Shares of Purchaser
at a price or conversion price of US$10.00 per share (with the result that any debt convertible shall be converted immediately prior to
the Closing into that number of shares of Class A Ordinary Shares of the Company equal to the quotient obtained by dividing the outstanding
indebtedness balance immediately prior to Closing divided by 10), and (ii) in the case of any debt funding (whether convertible or
non-convertible), such Indebtedness shall bear simple interest at a rate not to exceed 2% per annum.

 

(b)            If
from the date of this Agreement through the earlier of Closing or the termination of the Combination Agreement is Agreement, the Company
and Merger Sub incur Indebtedness, Purchaser Transaction Expenses (whether due before, on or after the Closing) (including deferred underwriting
fees, but expressly excluding any D&O tail insurance costs pursuant to Section 5.16(b) of the Combination Agreement) or
other Liabilities incurred by Purchaser or Merger Sub for purposes of funding working capital that in the aggregate exceeds the Purchaser
Debt and Liability Cap, without the prior express written consent of Target, then Sponsor shall fund (or cause its Affiliates (other than
the Company or any Subsidiary of the Company) to fund) such excess amount in Sponsor’s election either by (i) a cash contribution
by Sponsor (for no additional equity interests) or (ii) advancing funds in the form of debt obligations that (A) will bear simple
interest at a rate not to exceed 2% and (B) if a Closing occurs, such debt will remain an obligation of the Company, but Sponsor
(or its Affiliates, as applicable) shall forfeit that number of Class A Ordinary Shares and or Class B Ordinary Shares of the
Company immediately prior to Closing equal to the quotient obtained by dividing the outstanding indebtedness balance immediately prior
to Closing divided by 10.”

 

4.            Target
shall be an express intended third party beneficiary of the amendments set forth in this Letter Agreement Amendment, with full power to
enforce the terms and provisions hereof against Sponsor and the Insiders, as applicable.

 

5.            This
Letter Agreement Amendment may be executed in any number of original or electronic counterparts, and each of such counterparts shall for
all purposes be deemed to be an original, and all such counterparts shall together constitute one and the same instrument.

 

    2

     

    

 

6.            Except
as amended herein, all terms and conditions of the Letter Agreement shall continue in full force and effect.

 

[Signature Page Follows]

 

    3

     

    

 

	 	Sincerely,
	 	 
	 	TRADEUP GLOBAL SPONSOR LLC
	 	 
	 	 
	 	By:	/s/ Jianwei Li
	 	Name:	 Jianwei Li
	 	Title:	Manager
	 	 
	 	 /s/ David X. Li
	 	David X. Li
	 	 
	 	 /s/ Tao Jiang
	 	Tao Jiang
	 	 
	 	 /s/ Michael Davidov
	 	Michael Davidov

 

ACKNOWLEDGED AND AGREED:

 

TRADEUP GLOBAL CORPORATION

 

	By:	 /s/ Hung Lei	 
	Name:	 Huang Lei	 
	Title:	 Co-Chief Executive Officer	 

 

    4

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