Document:

Exhibit 10.7

 

Estrella
Biopharma, Inc.

5858
Horton Street, Suite 170

EMERYVILLE,
CA 94608

 

July 29, 2022

 

Dr. Cheng Liu

5858 Horton Street, Suite 170

Emeryville, CA 94608

 

Dear Cheng:

 

Estrella Biopharma, Inc. (the “Company”)
is pleased to offer you employment on the following terms:

 

		1.	Position. Your initial title will be President and Chief Executive Officer, and you will
report to the Company’s Board of Directors (the “Board”).

 

		2.	Conflicts Of Interest. You have reviewed with the Board the present directorships, ownership
interests and other positions that you hold in all of your business organizations which may be directly competitive or directly
in conflict with the Company, including your relationship with Eureka Therapeutics, Inc., JW (Cayman) Therapeutics Co. Ltd., Syracuse
Biopharma (Cayman) II Ltd., and InvisiShield Technologies Ltd. The Company acknowledges and agrees that while you will spend time
at the Company and will be active in the management of the Company, you will not devote your full time and resources to the Company.

 

		3.	Employee Benefits. As a regular employee of the Company, you will be eligible to participate
in the Company-sponsored benefits available to similarly situated employees.

 

		4.	Stock Option. You have previously received stock options to purchase shares of the Company’s
Common Stock (the “Option”). The Company will periodically review your stock options to determine whether any
adjustment is needed.

 

In addition, if the Company
is subject to a Change in Control before your service with the Company terminates and you are subject to an Involuntary Termination
within 12 months after that Change in Control, then 100% of the remaining unvested option shares (now or hereinafter granted) shall
vest immediately (each capitalized term as defined below).

 

		5.	Severance Benefits.

 

		a.	General. If you are subject to an Involuntary Termination and a Separation occurs, unless
by reason of Permanent Disability, then you will be entitled to the benefits described in this section. However, this section will
not apply unless you (i) have returned all Company property in your possession, (ii) have resigned as a member of the boards of
directors of the Company and all of its subsidiaries, to the extent applicable, and (iii) have executed a general release of all
claims that you may have against the Company or persons affiliated with the Company. The release must be in the form prescribed
by the Company, without alterations. You must execute and return the release on or before the date specified by the Company in
the prescribed form (the “Release Deadline”). The Release Deadline will in no event be later than 60 days after
your Separation. If you fail to return the release on or before the Release Deadline, or if you revoke the release, then you will
not be entitled to the benefits described in this section.

 

    	 	 	 

     

    

 

		b.	Salary Continuation and Vesting. If you are subject to an Involuntary Termination and a
Separation occurs, unless by reason of Permanent Disability, then you will be eligible for the payments and accelerated vesting
described in this section. The Company will continue to pay your base salary for a period of 6 months after your Separation. Your
base salary will be paid at the rate in effect at the time of your Separation and in accordance with the Company’s standard
payroll procedures. The salary continuation payments will commence within 30 days after the Release Deadline and, once they commence,
will be retroactive to the date of your Separation. Effective on the date of your Separation, the number of shares subject to the
Option that would have vested over the six-month period following your termination shall become immediately vested. In addition,
the Company will pay you, in cash, the monthly amount the Company was paying on behalf of you and your eligible dependents with
respect to the Company’s health insurance plans in which you and your eligible dependents were participants as of the day
of your Separation for the six-month period following your Separation; provided, however, that you shall no longer be eligible
to receive such payments effective as of the date on which you become eligible for employer-sponsored health insurance coverage
in connection with new full-time employment following the date of your Separation. Such payments will be `made in accordance with
the Company’s standard payroll procedures and they will commence within 60 days after your Separation and, once they commence,
will include any unpaid amounts accrued from the date of your Separation. However, if the 60-day period described in the preceding
sentence spans two calendar years, then the payments will in any event begin in the second calendar year.

 

		6.	Employment Relationship. Employment with the Company is for no specific period of time.
Your employment with the Company will be “at will,” meaning that either you or the Company may terminate your employment
at any time and for any reason, with or without Cause. Any contrary representations that may have been made to you are superseded
by this letter agreement. This is the full and complete agreement between you and the Company on this term. Although your job duties,
title, compensation and benefits, as well as the Company’s personnel policies and procedures, may change from time to time,
the “at will” nature of your employment may only be changed in an express written agreement signed by you and a duly
authorized officer of the Company (other than you).

 

		7.	Tax Matters.

 

		a.	Withholding. All forms of compensation referred to in this letter agreement are subject
to reduction to reflect applicable withholding and payroll taxes and other deductions required by law.

 

		b.	Tax Advice. You are encouraged to obtain your own tax advice regarding your compensation
from the Company. You agree that the Company does not have a duty to design its compensation policies in a manner that minimizes
your tax liabilities, and you will not make any claim against the Company or the Board related to tax liabilities arising from
your compensation.

 

		c.	Interpretation, Amendment and Enforcement. This letter agreement and Exhibit A constitute
the complete agreement between you and the Company, contain all of the terms of your employment with the Company and supersede
any prior agreements, representations or understandings (whether written, oral or implied) between you and the Company. This letter
agreement may not be amended or modified, except by an express written agreement signed by both you and a duly authorized officer
of the Company. The terms of this letter agreement and the resolution of any disputes as to the meaning, effect, performance or
validity of this letter agreement or arising out of, related to, or in any way connected with, this letter agreement, your employment
with the Company or any other relationship between you and the Company (the “Disputes”) will be governed by
California law, excluding laws relating to conflicts or choice of law. You and the Company submit to the exclusive personal jurisdiction
of the federal and state courts located in the City and County of San Francisco in connection with any Dispute or any claim related
to any Dispute.

 

		8.	Definitions. The following terms have the meaning set forth below wherever they are used
in this letter agreement:

 

“Cause” means (a) your
material breach of any written agreement between you and the Company, (b) your conviction of, or your plea of “guilty”
or “no contest” to, a felony under the laws of the United States or any State, or (c) your continuing failure to perform
assigned duties after receiving written notification of such failure from the Board. Except in the case of subsections (a) and
(c), however, no Cause shall exist until you have been provided written notice of the specific grounds for Cause and a period of
time, not less than 30 days, that is sufficient to cure the specified Cause but have failed to do so.

 

    	 	 	 

     

    

 

“Change in Control”
means (a) the consummation of a merger or consolidation of the Company with or into another entity; (b) the sale of substantially
all the assets of the Company; or (c) the dissolution, liquidation or winding up of the Company. The foregoing notwithstanding,
a merger or consolidation of the Company does not constitute a “Change in Control” if immediately after the merger
or consolidation a majority of the voting power of the capital stock of the continuing or surviving entity, or any direct or indirect
parent corporation of the continuing or surviving entity, will be owned by the persons who were the Company’s stockholders
immediately prior to the merger or consolidation in substantially the same proportions as their ownership of the voting power of
the Company’s capital stock immediately prior to the merger or consolidation.

 

“Good Reason” means
that you resign within 12 months after one of the following conditions has come into existence without your consent:

 

		(a)	A reduction in your base salary by more than 10% (other than in connection with similar decreases
of other comparable employees of the Company);

 

		(b)	A material diminution of your authority, duties or responsibilities; provided, however, that a
change in your position following a Change in Control shall not constitute Good Reason so long as you retain substantially the
same duties and responsibilities of a division, subsidiary or business unit that constitutes substantially the same business of
the Company following the Change in Control; or

 

		(c)	A relocation of your principal workplace by more than 35 miles.

 

A condition will not be considered “Good
Reason” unless you give the Company written notice of the condition within 90 days after the condition comes into existence
and the Company fails to remedy the condition within 30 days after receiving your written notice.

 

“Involuntary Termination”
means a Separation resulting from either (a) your involuntary discharge by the Company for reasons other than Cause or (b) your
voluntary resignation for Good Reason.

 

“Permanent Disability”
means that you are unable to perform the essential functions of your position, with or without reasonable accommodation, for a
period of at least 120 consecutive days because of a physical or mental impairment.

 

“Separation” means a
“separation from service,” as defined in the regulations under Section 409A of the Internal Revenue Code of 1986.

 

*****

 

We hope that you will accept our offer
to join the Company. You may indicate your agreement with these terms and accept this offer by signing and dating both the enclosed
duplicate original of this letter agreement. This offer, if not accepted, will expire at the close of business on                                                          ,
2022. As required by law, your employment with the Company is contingent upon your providing legal proof of your identity and authorization
to work in the United States.

 

If you have any questions, please
call me.

 

    	 	 	 

     

    

 

	 	Very truly yours,	 
	 	 	 
	 	Estrella Biopharma, Inc.	 
	 	 	 
	 	/s/ Qian Yang	 
	 	By: Qian Yang	 
	 	 	 
	 	Title: Chief Operating Officer	 

 

	I have read and accept this employment offer:	 	 
	 	 	 	 
	/s/ Cheng Liu	 	 
	Cheng Liu	 	 
	 	 	 	 
	Date:	July 29, 2022Exhibit 10.8

 

EMPLOYMENT AGREEMENT

 

THIS EMPLOYMENT AGREEMENT
(the "Agreement"), dated as of May 27, 2022 (the "Effective Date"), is made by and between Estrella
Biopharma, Inc. a Delaware corporation (the "Company"), and Jiandong Xu ("Executive"). This Agreement
shall govern the employment relationship between Executive and the Company from and after the Effective Date.

 

NOW, THEREFORE, in
consideration of the above recitals incorporated herein and the mutual covenants and promises contained herein and other good and
valuable consideration, the receipt and sufficiency of which are hereby expressly acknowledged, the parties agree as follows:

 

		1.	Retention and Duties.

 

(a)           The
Company hereby engages and employs Executive for the Period of Employment (as defined in Section 2) on the terms and conditions
expressly set forth in this Agreement. Executive hereby accepts and agrees to such engagement and employment, on the terms and
conditions expressly set forth in this Agreement.

 

(b)           During
the Period of Employment, Executive shall serve as Chief Financial Officer of the Company and shall have the powers, authorities
and duties customarily vested in such office in the industry of the Company and as reasonably determined board of directors of
the Company (the "Board") from time to time. Executive shall report directly to the Chief Executive Officer of the Company
during the Period of Employment. This position will be based in Emeryville, California and Executive may be required to travel
in fulfillment of Executive's duties and responsibilities hereunder.

 

(c)           Executive
hereby represents to the Company that: (i) the execution and delivery of this Agreement and the performance by Executive of Executive's
duties hereunder do not and shall not constitute a breach of, conflict with, or otherwise contravene or cause a default under,
the terms of any other agreement or policy to which Executive is a party or otherwise bound or any judgment, order or decree to
which Executive is subject; (ii) Executive has no information (including, without limitation, confidential information and trade
secrets) relating to any other person or entity that would prevent Executive under the terms of any other agreement or arrangement
from entering into this Agreement or carrying out Executive's duties hereunder, or would give rise to a violation of such other
agreement or arrangement by virtue of Executive entering into this Agreement and carrying out Executive's duties hereunder; (iii)
Executive is not bound by any employment, consulting, non-competition, confidentiality, trade secret or similar agreement (other
than this Agreement) with any other person or entity that would prevent Executive under the terms of any other agreement or arrangement
from entering into this Agreement or carrying out Executive's duties hereunder, or would give rise to a violation of such other
agreement or arrangement by virtue of Executive entering into this Agreement and carrying out Executive's duties hereunder; and
(iv) Executive understands the Company will rely upon the accuracy and truth of the representations and warranties of Executive
set forth herein.

 

2.           Period
of Employment. The "Period of Employment" shall be the period commencing on the Effective Date and
ending at the close of business on the day before the end of the 12th month period following the Effective Date (the "Initial
Term"), unless Executive's employment with the Company terminates earlier pursuant to Section 5. The Period of
Employment shall be extended automatically at the close of business on the day before the end of the last day of the Initial
Term and on each successive anniversary of the Effective Date thereafter (each such anniversary, a "Renewal
Date") by successive 1 year periods unless either the Company or the Executive provides written notice of an
intention to terminate the Agreement at least ninety (90) days prior to such Renewal Date. The term "Period of
Employment" shall include any such automatic 1 year extensions. The Period of Employment may be modified only by a
written agreement between the parties and in such case, the term "Period of Employment" shall be deemed to
mean the Period of Employment as so modified. Notwithstanding anything to the contrary herein, Executive's employment with
the Company shall be "at will."

 

    	 	 	 

     

    

 

		3.	Compensation and Reimbursement of Expenses.

 

(a)           Compensation.
Executive's annual base salary for the Period of Employment shall be mutually agreed upon (as may be adjusted from time to
time, the "Base Salary"), shall be payable in accordance with the Company's regular payroll practices in effect
from time to time and subject to all applicable taxes and withholdings. The parties acknowledge and agree that a portion of Executive's
Base Salary shall constitute consideration for Executive's compliance with the restrictions and covenants set forth in Section
6 of this Agreement.

 

(b)           Annual
Cash Bonus. For each fiscal year ending during the Period of Employment, Executive shall be eligible to receive an annual cash
bonus (the "Annual Bonus") to be determined by the Compensation Committee of the Board (the "Compensation
Committee") based on financial, operational, individual and/or other targets established by the Compensation Committee
and subject to any annual cash incentive plan adopted by the Compensation Committee. The Compensation Committee will set Executive's
target Annual Bonus opportunity, equal to a percentage of Base Salary, for each fiscal year. The Annual Bonus shall be subject
to Executive's continuous employment through the payment date and shall be payable in the first payroll period following the completion
of the Company's audited financials related to the performance year, which in no event shall be later than December 31" of
the year following the year to which such Annual Bonus relates.

 

(c)           Stock
Options. Subject to the approval of the Company's Board, the Company shall grant Executive a stock option (the "Option")
covering 4,800,000 shares of the Company's Common Stock. The Option shall be granted as soon as reasonably practicable after
the Effective Date. The exercise price per share will be equal to the fair market value per share on the date the Option is granted,
as determined by the Company's Board in good faith compliance with applicable guidance in order to avoid having the Option be treated
as deferred compensation under Section 409A of the Internal Revenue Code of 1986, as amended. There is no guarantee that the Internal
Revenue Service will agree with this value. Executive should consult with Executive's own tax advisor concerning the tax risks
associated with accepting an option to purchase the Company's Common Stock. All principal and accrued interest shall be payable
on the maturity date of the loan. So long as Executive's service status is continuous, the Option shall vest as follows: 1/48 of
the total number of Option shares shall vest as of the Effective Date and 1/48th of the remaining unvested Option shares shall
vest in equal monthly installments thereafter so that all of the Options shall vest on the 48th month anniversary of the Effective
Date. Upon the consummation of: (i) a Change in Control Transaction (as defined in the Plan), (ii) a going public transaction in
which the Company enters into one or a series of transactions for: (A) any merger, consolidation, joint venture or other business
combination pursuant to which a majority of the business of Company is combined with that of a special purpose acquisition company
or other blank-check company that has a class of equity securities publicly listed on the New York Stock Exchange or Nasdaq ("SPAC");
(B) the acquisition by a SPAC, directly or indirectly, of a majority of the capital stock of Company, by way of a negotiated
purchase or any other means; and/or (C) the acquisition by a SPAC, directly or indirectly, of a majority of the assets, properties
and/or businesses of Company, by way of a direct or indirect purchase, lease, license, exchange, joint venture or other means;
or (iii) an initial public offering of the Company's shares, 100% of the remaining unvested Option shares shall be immediately
vested and exercisable. The Option will be an incentive stock option to the maximum extent allowed by the tax code. However, Executive
may elect NSO treatment in Executive's sole discretion. To the extent not inconsistent with this Agreement, the Option shall be
subject to the other terms and conditions set forth in the Company's 2022 Equity Incentive Plan (the "Plan") and
in the Company's standard form of Stock Option Agreement (the "Stock Agreement").

 

(d)           Reimbursement
of Business Expenses. Executive is authorized to incur reasonable expenses (including telephone, commercial air travel, and
entertainment) in carrying out Executive's duties hereunder and shall, upon receipt by the Company of proper documentation with
respect thereto (setting forth the amount, business purpose and establishing payment) be reimbursed for all such business expenses
incurred during the Period of Employment, subject to the Company's written expense reimbursement policies and any written pre-approval
policies in effect from time to time.

 

    	 	 	 

     

    

 

(e)           Clawback
Policy. To the extent required by applicable law or regulation, any applicable stock exchange listing standards or any clawback
policy adopted by the Company pursuant to any such law, regulation or stock exchange listing standards, or to comport with good
corporate governance practices, the Annual Bonus and any other incentive compensation granted to Executive (whether pursuant to
this Employment Agreement or otherwise) shall be subject to the provisions of any applicable clawback policies or procedures, which
may provide for forfeiture and/or recoupment of such amounts paid or payable under this Employment Agreement or otherwise, including
incentive equity awards granted to Executive.

 

4.             Executive
Benefits.

 

(a)           Company
Executive Benefit Plans. During the Period of Employment, Executive shall be provided the opportunity to participate in all
standard employee benefit programs made available by the Company to the Company's employees generally, in accordance with the eligibility
and participation provisions of such plans and as such plans or programs may be in effect from time to time. The Company reserves
the right to amend any employee benefit plan, policy, program or arrangement from time to time, or to terminate such plan, policy,
program or arrangement, consistent with the terms thereof at any time and for any reason without providing Executive with notice.

 

(b)           Vacation
and Other Leave. During the Period of Employment, Executive shall be eligible to receive paid vacation in accordance with and
subject to the Company's vacation policies in effect from time to time. Vacations are to be taken at times mutually agreeable to
the Company and the Executive.

 

		5.	Termination of Employment.

 

(a)           Termination
by the Company; Termination Due to Death. Executive's employment with the Company and the Period of Employment may be terminated
by the Company immediately upon notice to Executive or due to Executive's Disability (as defined below). Executive's employment
with the Company, and the Period of Employment, shall automatically terminate upon Executive's death.

 

(b)           Termination
by Executive. Executive's employment with the Company, and the Period of Employment, may be terminated by Executive for any
reason with no less than ninety (90) days' advance written notice to the Company. Upon Executive's resignation, Executive shall
cooperate as reasonably requested by the Board to effectuate an orderly transition.

 

(c)           Benefits
upon Termination. If Executive's employment with the Company is terminated during the Period of Employment for any reason by
the Company or by Executive, the Company shall have no further obligation to make or provide to Executive, and Executive shall
have no further right to receive or obtain from the Company, any payments or benefits except as follows:

 

(i)           The
Company shall pay Executive (or, in the event of Executive's death, Executive's estate) any Accrued Obligations (as defined below)
within the thirty (30) day period following the date Executive's employment terminates (the "Separation Date"),
or such earlier date as may be required by applicable law, and Executive shall receive any vested accrued benefits for which Executive
remains eligible under the Company's employee welfare benefit and retirement plans, payable according to the terms of such plans.

 

(ii)           Executive
and Executive's eligible dependents shall be eligible for continued coverage under the group medical care plans provided to employees
of the Company in accordance with the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended ("COBRA")
and/or state law, subject to the terms and conditions thereof, and at Executive's own expense.

 

    	 	 	 

     

    

 

(d)           Executive
agrees that the payments and benefits contemplated by Section 5(c) shall constitute the exclusive and sole remedy for any termination
of Executive's employment, and Executive covenants not to assert or pursue any other remedies, at law or in equity; provided that,
nothing herein shall preclude Executive from contesting the grounds for termination in the event of a termination due to Disability,
or otherwise interfere with Executive's ability to apply for unemployment, workers' compensation, or disability insurance benefits.

 

(e)           Certain
Defined Terms. As used in this Agreement:

 

(i)           "Accrued
Obligations" means (A) any Base Salary that had accrued but had not been paid (including any amount for accrued and unused
vacation time payable in accordance with the Company's vacation policy then in effect or applicable law) on or before the Separation
Date, (B) any reimbursement due to Executive pursuant to Section 3(c) for expenses incurred by Executive on or before the Separation
Date and (C) any other vested benefits or vested amounts due and owed to Executive under the terms of any plan, program or arrangement
of the Company.

 

(ii)           "Disability"
means a physical or mental impairment that renders Executive unable to perform the essential functions of Executive's employment
with the Company, even with reasonable accommodation that does not impose an undue hardship on the Company, for ninety (90) days
(whether or not continuous) during any period of one-hundred eighty (180) consecutive days, unless a longer period is required
by federal or state law, in which case that longer period would apply.

 

(iii)           "Section
409A" means Section 409A of the Internal Revenue Code of 1986, as amended (the "Code") and the regulations,
rules and other guidance promulgated thereunder.

 

(0           Officer/Board/Committee
Resignations. Unless as otherwise agreed to in writing by the Company and Executive, upon the termination of Executive's employment
for any reason, Executive will be deemed to have resigned, without any further action by Executive, from any and all positions
including, but not limited to, any officer, board and/or director positions or positions as a fiduciary of any of the employee
benefit plans of the Company Group that Executive, immediately prior to such termination, (i) held within the Company Group and
(ii) held with any other entities at the direction of, or as a result of Executive's affiliation with, the Company Group. If, for
any reason, this Section 5(f) is deemed to be insufficient to effectuate such resignations, then Executive will, upon the Company's
request, execute any documents or instruments that the Company may reasonably deem necessary to effectuate such resignations.

 

(g)           Section
409A.

 

(i)           It
is the intention of the parties that Executive's performance of the services under this Agreement and payments to Executive under
this Agreement shall not implicate Section 409A. In the event that Executive's performance of the services or any payment due to
the Executive under the employment agreement would subject Executive to the additional tax and interest imposed by Section 409A,
or any interest or penalties with respect to such additional tax, the Company shall modify this Agreement to make it compliant
with Section 409A and maintain the value of the payments and benefits under the Agreement. In no event, however, shall the Company
be liable for any tax, interest or penalty imposed on Executive under Section 409A or any damages for failing to comply with Section
409A.

 

(ii)           If
at the time of the Executive's termination of employment, the Executive is a "specified employee," under Section 409A,
any and all amounts payable under the Agreement on account of such termination of employment that would (but for this provision)
be payable within six (6) months following the date of termination, shall instead be paid on the next business day following the
expiration of such six (6) month period or, if earlier, the date of the Executive's death; except (A) to the extent of amounts
that do not constitute a deferral of compensation within the meaning of Section 409A; (B) benefits which qualify as excepted welfare
benefits pursuant to Section 409A-1(a)(5); or (C) other amounts or benefits that are not subject to the requirements of Section
409A. Each payment made under this Agreement shall be treated as a separate payment and the right to a series of installment payments
under this Agreement is to be treated as a right to a series of separate payments.

 

    	 	 	 

     

    

 

(iii)           Any
reimbursement payment or in-kind benefit due to Executive pursuant to Section 3(c), to the extent that such reimbursements or in-kind
benefits are taxable to Executive, shall be paid on or before the last day of Executive's taxable year following the taxable year
in which the related expense was incurred. Executive agrees to provide prompt notice to the Company of any such expenses (and any
other documentation that the Company may reasonably require to substantiate such expenses) in order to facilitate the Company's
timely reimbursement of the same. Reimbursements and in-kind benefits pursuant to Section 3(c) are not subject to liquidation or
exchange for another benefit and the amount of such benefits that Executive receives in one taxable year shall not affect the amount
of such reimbursements or benefits that Executive receives in any other taxable year.

 

(iv)           For
purposes of Section 409A, Executive's right to receive any installment payments hereunder shall be treated as a right to receive
a series of separate and distinct payments. Whenever a payment under this Agreement specifies a payment period with reference to
a number of days (e.g., payment shall be made within thirty (30) days following the date of termination), the actual date of payment
within the specified period shall be within the sole discretion of the Company.

 

		6.	Restrictive Covenants.

 

		(a)	Non-Disclosure and Non-Use of Confidential Information.

 

(i)           Executive
agrees that during the Period of Employment and following the termination thereof for any reason, the Executive shall not, and
shall cause his affiliates and representatives not to, disclose to any individual or natural person, partnership (including a limited
liability partnership), corporation, limited liability company, association, joint stock company, trust, joint venture, unincorporated
organization or governmental authority (each, a "Person"), except (i) to the Executive's legal, financial, tax or accounting
advisors, or (ii) as compelled by law, any Confidential Information for any reason or purpose whatsoever, and the Executive shall
not, and shall cause Executive's affiliates or representatives not to, make use of any of the Confidential Information for their
own purposes or for the benefit of any Person except any Company Group Member. In the event that Executive or any of Executive's
affiliates or representatives are compelled by law to disclose any Confidential Information, the Executive shall promptly provide
written notice to the Company of the request or requirement so that the Company may seek (at the Company's sole cost and expense)
an appropriate protective order or waive compliance with the provisions of this Section 6(a). If, in the absence of a protective
order or the receipt of a waiver hereunder, the Executive or any of the Executive's affiliates or representatives are compelled
by law to disclose any Confidential Information to any tribunal, the Executive or the Executive's affiliates, as applicable, may
disclose the Confidential Information to the tribunal; provided, that the Executive or the Executive's affiliates, as applicable,
shall use commercially reasonable efforts to obtain, at the request and sole expense of the Company, an order or other assurance
that confidential treatment shall be accorded to such portion of the Confidential Information required to be disclosed as the Company
shall designate.

 

(ii)           For
purposes of this Agreement, "Confidential Information" shall mean any information of a confidential or proprietary
nature concerning the business or affairs of the Company Group; provided however, "Confidential Information" shall
not include information which (i) is or becomes generally available to the public other than as a result of disclosure by Executive
or any of the Executive's affiliates to the receiving party in violation of this Agreement or (ii) becomes available to the Executive
or any of the Executive's affiliates on a non-confidential basis from a source other than any Company Group Member, so long as
such source is not known by the Executive to be bound by a confidentiality agreement with any of the foregoing prohibiting such
disclosure.

 

    	 	 	 

     

    

 

(iii)           For
the avoidance of doubt, this Section 6(a) does not prohibit or restrict Executive (or Executive's attorney) from responding to
any inquiry about this Agreement or its underlying facts and circumstances by the Securities and Exchange Commission, the Financial
Industry Regulatory Authority, or any other self-regulatory organization or governmental authority, or making other disclosures
that are protected under the whistleblower provisions of federal law or regulation. Executive understands and acknowledges that
Executive does not need the prior authorization of the Company to make any such reports or disclosures and that Executive is not
required to notify the Company that Executive has made such reports or disclosures.

 

(iv)           Notwithstanding
anything in this Section 6(a) or elsewhere in this Agreement to the contrary, Executive understands that Executive may, pursuant
to the U.S. Defend Trade Secrets Act of 2016 ("DTSA"), without informing the Company prior to any such disclosure, disclose
Confidential Information (A) in confidence to a federal, state, or local government official, either directly or indirectly, or
to an attorney, solely for the purpose of reporting or investigating a suspected violation of law or (B) in a complaint or other
document filed in a lawsuit or other proceeding, if such filing is made under seal. Additionally, without informing the Company
prior to any such disclosure, if Executive files a lawsuit against the Company for retaliation for reporting a suspected violation
of law, Executive may, pursuant to the DTSA, diSclose Confidential Information to Executive's attorney and use the Confidential
Information in the court proceeding or arbitration, provided that Executive files any document containing the Confidential Information
under seal and does not otherwise disclose the Confidential Information, except pursuant to court order. Without prior authorization
of the Company, however, the Company does not authorize Executive to disclose to any third party (including any government official
or any attorney Executive may retain) any communications that are covered by the Company's attorney-client privilege.

 

		(b)	Intellectual Property Rights.

 

(i)           Executive
hereby assigns, transfers, and conveys to the Company all of Executive's right, title and interest in and to all Work Product (as
defined below). Executive agrees that all Work Product belongs in all instances to the Company. Executive will promptly disclose
such Work Product to the Company and perform all actions reasonably requested by the Company (whether during or after the Period
of Employment) to establish and confirm the Company's ownership of such Work Product (including, without limitation, the execution
and delivery of assignments, consents, powers of attorney, and other instruments) and to provide reasonable assistance to the Company
(whether during or after the Period of Employment) in connection with the prosecution of any applications for patents, trademarks,
trade names, service marks or reissues thereof or in the prosecution or defense of interferences relating to any Work Product.
Executive recognizes and agrees that the Work Product, to the extent copyrightable, constitutes works for hire under the copyright
laws of the United States.

 

(ii)           For
purposes of this Agreement, "Work Product" means all inventions, innovations, improvements, technical information,
systems, software developments, methods, designs, analyses, drawings, reports, service marks, trademarks, trade names, trade dress,
logos and all similar or related information (whether patentable or unpatentable) which relates to the actual business, operations,
research and development, or existing or future products or services of the Company Group and which are conceived, developed, or
made by Executive (whether or not during usual business hours and whether or not alone or in conjunction with any other person)
during the Period of Employment together with all patent applications, letters patent, trademark, trade name, and service mark
applications or registrations, copyrights and reissues thereof that may be granted for or upon any of the foregoing. Notwithstanding
the foregoing, "Work Product" shall not include the patents and other assets set forth on Exhibit A hereto.
Executive hereby represents and warrants that the patents and other assets owned by Executive set forth on Exhibit A are
not related in any way to the Company Group, except as stated therein.

 

    	 	 	 

     

    

 

(c)           Non-Solicitation
and Non-Interference. During the Period of Employment, Executive will not, and will cause Executive's affiliates not to use
confidential information to, directly or indirectly through any other Person (whether as an officer, manager, director, employee,
partner, consultant, holder of equity or debt investment, lender or any other manner or capacity): (i) directly or indirectly contact,
induce or solicit (or assist any Person to contact, induce or solicit) for employment any person who is, or within the preceding
12 months was, an executive employed by a Company Group Member; or (ii) induce or attempt to induce any customer, supplier, or
licensee of the Company Group within the preceding 12 months to cease doing business with the Company Group or in any way interfere
with the relationship between the Company Group and any such customer, supplier, or licensee.

 

(d)           Non-Disparagement.
During the Period of Employment and following the termination thereof for any reason, Executive shall not make any negative
statements or communications about any Company Group Member or any of their respective direct or indirect equity holders, directors,
managers, officers or employees. Notwithstanding the foregoing, nothing in this Agreement is intended to require any person to
make any untruthful statement or to violate any law.

 

		7.	Acknowledgment and Enforcement of Covenants.

 

(a)           Acknowledgment.
Executive acknowledges that Executive has become familiar, or will become familiar, with the Company Group Members' trade secrets
and with other Confidential Information concerning the Company Group Members and their respective predecessors, successors, customers,
and suppliers, and that Executive's services are of special, unique, and extraordinary value to the Company. Executive acknowledges
and agrees that the Company would not enter into this Agreement, providing for compensation and other benefits to Executive on
the terms and conditions set forth herein, but for Executive's agreements herein (including those set forth in Section 6). Furthermore,
Executive acknowledges and agrees that the Company will be providing Executive with additional special knowledge after the Effective
Date, with such special knowledge to include additional Confidential Information and trade secrets. Executive agrees that the covenants
set forth in Section 6 (collectively, the "Restrictive Covenants") are reasonable and necessary to protect the
Company Group's trade secrets and other Confidential Information, proprietary information, goodwill, stable workforce, and customer
relations.

 

(b)           Representations.
Without limiting the generality of Executive's agreement with the provisions of Section 7(a), Executive (i) represents that Executive
is familiar with and has carefully considered the Restrictive Covenants, (ii) represents that Executive is fully aware of Executive's
obligations hereunder, (iii) agrees to the reasonableness of the length of time, scope, and geographic coverage, as applicable,
of the Restrictive Covenants, (iv) agrees that the Company Group currently conducts business within the United States, and (v)
agrees that the Restrictive Covenants will continue in effect for the applicable periods set forth above regardless of whether
Executive is then entitled to receive severance pay or benefits from the Company. Executive understands that the Restrictive Covenants
may limit Executive's ability to earn a livelihood in a business similar to the business of the Company Group, but Executive nevertheless
believes that Executive has received and will receive sufficient consideration and other benefits as an employee of the Company
and as otherwise provided hereunder or as described in the recitals hereto to clearly justify such restrictions which, in any event
(given Executive's education, skills, and ability), Executive does not believe would prevent Executive from otherwise earning a
living. Executive agrees that the Restrictive Covenants do not confer a benefit upon the Company disproportionate to the detriment
of Executive.

 

(c)           Enforcement.
Executive acknowledges and agrees that money damages would not be an adequate remedy for any breach or threatened breach of
the provisions of the Restrictive Covenants and that the Company or any of its successors or assigns shall, in addition to any
other rights and remedies existing in their favor, be entitled to specific performance, injunctive and/or other relief from any
court of competent jurisdiction in order to enforce or prevent any violations of the Restrictive Covenants (including the extension
of the restricted periods set forth in Section 6 by a period equal to the length of any legal proceeding, arbitration, or other
action necessary to stop such violation), provided, that Executive is found to have been in violation of the Restrictive
Covenants by a court of competent jurisdiction. Any injunction shall be available without the posting of any bond or other security.
In the event of an alleged breach or violation by Executive of any Restrictive Covenant, the restricted period will be tolled for
the Executive until such alleged breach or violation is resolved; provided, that if Executive is found to have not violated
the Restrictive Covenants, then the restricted period will not be deemed to have been tolled.

 

    	 	 	 

     

    

 

(d)           Severability.
If, at the time of enforcement of the Restrictive Covenants, a court or arbitrator holds that the Restrictive Covenants are
unreasonable under the circumstances then existing, the parties agree that the maximum period, scope or geographical area reasonable
under such circumstances shall be substituted for the stated period, scope or area determined to be reasonable under the circumstances
by such court or arbitrator, as applicable. Executive covenants and agrees that Executive will not seek to challenge the enforceability
of the Restrictive Covenants against any Company Group Member, nor will Executive assert as a defense to any action seeking enforcement
of the Restrictive Covenants (including an action seeking injunctive relief) that such provisions are not enforceable due to lack
of sufficient consideration received by Executive.

 

8.           Withholding
Taxes/Authorized Deductions. Notwithstanding anything herein to the contrary, the Company may withhold (or cause to be
withheld) from any amounts otherwise due or payable under or pursuant to this Agreement such federal, state and local income, social
security, employment or other taxes as may be required to be withheld pursuant to any applicable law or regulation, and make such
deductions as may be applicable pursuant to the Company's policies and employee benefit plans.

 

9.           Cooperation.
During and after the Period of Employment, Executive shall cooperate fully with any investigation or inquiry by the Company, or
any governmental or regulatory agency or body concerning the Company or any other member of the Company, provided that the Company
shall reimburse Executive's reasonable expenses incurred in providing such cooperation (including, without limitation, attorneys'
fees and lodging and meals) subject to Executive's delivery of written notice to the Company prior to the time such expenses are
incurred.

 

10.           Governing
Law. This Agreement will be governed by and construed in accordance with the laws of the State of California without giving
effect to any choice or conflict of law provision or rule (whether of the State of California or any other jurisdiction) that would
cause the application of the laws of any jurisdiction other than the State of California.

 

11.           Consent
to Jurisdiction. All judicial proceedings brought against any party arising out of or relating to this Agreement, or any
obligations or liabilities hereunder, shall be brought and maintained in the courts of the State of California or the federal courts
located in the State of California. By executing this Agreement, each party irrevocably: (a) accepts generally and unconditionally
the exclusive jurisdiction and venue of such courts; (b) waives, to the fullest extent permitted by applicable law any objection
which they may now or hereafter have to the laying of venue of any such dispute brought in such court or any defense of inconvenient
forum for the maintenance of such dispute; (c) agrees that service of all process in any such proceeding in any such court may
be made by nationally recognized overnight courier or by registered or certified mail, return receipt requested, to such party
at its address provided in accordance with Section 18; (d) agrees that service as provided in clause (c) above is sufficient to
confer personal jurisdiction over the party in any such proceeding in any such court, and otherwise constitutes effective and binding
service in every respect; (e) agrees that the parties retain the right to serve process in any other manner permitted by law but
shall not have any right to bring proceedings against the other party in the courts of any other jurisdiction; and (f) agrees that
the provisions of this Section 11 relating to jurisdiction and venue shall be binding and enforceable to the fullest extent permissible
under applicable law. Notwithstanding the foregoing, the Company may seek injunctive or equitable relief to enforce the terms of
this Agreement in any court of competent jurisdiction.

 

    	 	 	 

     

    

 

12.           Waiver
of Jury Trial. Each of the parties hereto hereby irrevocably waives all right to trial by jury in any action, proceeding
or counterclaim arising out of or relating to this Agreement.

 

13.           Severability.
It is the desire and intent of the parties hereto that the provisions of this Agreement be enforced to the fullest extent permissible
under the laws and public policies applied in each jurisdiction in which enforcement is sought. Accordingly, if any particular
provision of this Agreement shall be adjudicated by a court of competent jurisdiction to be invalid, prohibited or unenforceable
under applicable law, such provision, as to such jurisdiction, shall be ineffective without invalidating the remaining provisions
of this Agreement or affecting the validity or enforceability of such provision in any other jurisdiction.

 

14.           Indemnification.
The Company shall indemnify Executive in accordance with applicable law and to the extent set forth in the Company's by-laws and
certificate of incorporation and the governing documents of any applicable Company Group Members. Executive shall also be entitled
to coverage under a director and officer liability policy at a level no less favorable than that made available to other similarly
situated employees of the Company or its affiliates.

 

15.           Entire
Agreement; Amendment. This Agreement embodies the entire agreement of the parties hereto respecting the matters within
its scope and supersedes all prior agreements (including, without limitation, any offer letters, term sheets, consulting agreements
and correspondence relating thereto), whether written or oral, that directly or indirectly bear upon the subject matter hereof,
excluding any restrictive covenant agreement by and between Executive and any Company Group Member. This Agreement may not be amended,
modified or changed (in whole or in part), except by written agreement executed by both of the parties hereto.

 

16.           Waiver.
No waiver of any of any provision of this Agreement will constitute or be deemed to constitute a waiver of any other provision
of this Agreement, nor will any such waiver constitute a continuing wavier unless otherwise expressly provided.

 

17.           Successors
and Assigns. This Agreement cannot be assigned by the Company without the prior written consent of Executive, other than
(a) an assignment to an affiliate of the Company made as part of an internal reorganization applicable to employees of the Company
generally or (b) to any successor or assign (whether direct or indirect, by purchase, merger, consolidation or otherwise) to all
or substantially all of the business or assets of the Company, and shall be binding and inure to the benefit of the Company, its
successors and any permitted assigns. No right, obligation or duty or duty of this Agreement may be assigned by Executive without
the prior written consent of the Company.

 

18.           Notices.
Any notice provided for in this Agreement must be in writing and must be either personally delivered, transmitted via telecopier
or email, mailed by first class mail (postage prepaid and return receipt requested) or sent by reputable overnight courier service
(charges prepaid) to the recipient at the address below indicated or at such other address or to the attention of such other person
as the recipient party has specified by prior written notice to the sending party. Notices will be deemed to have been given hereunder
and received when delivered personally, when received if transmitted via telecopier or email, five days after deposit in the U.S.
mail and one day after deposit with a reputable overnight courier service.

 

If to the Company:

 

Estrella Biopharma, Inc.

5858 Horton Street, Suite 170

Emeryville, CA 94608

Attention: Cheng Liu

 

    	 	 	 

     

    

 

If to Executive, to the address most recently
on file in the payroll records of the Company.

 

19.           Section
280G. Payments under this Agreement shall be made without regard to whether the deductibility of such payments (or any
other payments to or for the benefit of the Executive) would be limited or precluded by Section 280G of the Code without regard
to whether such payments (or any other payments) would subject the Executive to the federal excise tax levied on certain "excess
parachute payments" under Section 4999 of the Code; provided, that if the total of all payments to or for the benefit of the
Executive (whether under this Agreement or otherwise), after reduction for all state and federal taxes (including the tax described
in Section 4999 of the Code, if applicable) with respect to such payments ("Executive's Total After-Tax Payments"),
would be increased by the limitation or elimination of any payment under this Agreement, amounts payable under this Agreement shall
be reduced to the extent, and only to the extent, necessary to maximize the Executive's Total After-Tax Payments. The determination
as to whether and to what extent payments under this Agreement are required to be reduced in accordance with the preceding sentence
shall be made at the Company's expense by a nationally recognized accounting firm after considering in good faith all available
exemptions, including a fair valuation of reasonable compensation for services rendered by Executive and a fair valuation for any
post-employment covenants.

 

20.           Legal
Counsel; Mutual Drafting. Each party recognizes that this is a legally binding contract and acknowledges and agrees that
they have had the opportunity to consult with legal counsel of their choice. Each party has cooperated in the drafting, negotiation
and preparation of this Agreement.

 

Hence, in any construction
to be made of this Agreement, the same shall not be construed against either party on the basis of that party being the drafter
of such language. Executive agrees and acknowledges that Executive has read and understands this Agreement, is entering into it
freely and voluntarily, and has been advised to seek counsel prior to entering into this Agreement and has had ample opportunity
to do so.

 

21.           Counterparts.
This Agreement may be executed in any number of counterparts, each of

which shall be deemed
an original as against any party whose signature appears thereon, and all of which together shall constitute one and the same instrument.

 

[Signatures on Following Page]

 

    	 	 	 

     

    

 

IN WITNESS WHEREOF, the Company and
Executive have executed this Agreement as of the date first written above.

 

	 	"COMPANY"	 
	 	 	 	 
	 	Estrella Biopharma Inc. 	 
	 	 	 	 
	 	By:	/s/ Qian Yang	 
	 	 	 	 
	 	Name: 	Qian Yang	 
	 	Title: 	Chief Operating Officer	 
	 	 	 	 
	 	"EXECUTIVE"	 
	 	 	 
	 	/s/ Jiandong Xu	 
	 	Jiandong Xu	 

 

[Signature Page to Employment Agreement]

 

    	 	 	 

     

    

 

EXHIBIT A

 

EXCLUDED FROM WORK PRODUCT

I have no inventions.

 

The following is a complete list of
all pre-existing intellectual property and other assets to be excluded from the definition of Work Product relative to the subject
matter of my employment with the Company that have been created by me, alone or jointly with others, prior to the Effective Date,
which might relate to the Company Group's present business:

 

	 
	 
	 
	 
	 
	 
	 
	 
	 
	 
	 
	 
	 
	 
	 

 

_________ Additional sheets attached.

 

	Executive:	/s/ Jiandong Xu	 	Date: 	May 27, 2022	 

 

    	 	 A-1

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