Document:

EX-10.1

 Exhibit 10.1 

Execution Version 
 THIS AMENDED AND
RESTATED PROMISSORY NOTE (“NOTE”) HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”). THIS NOTE HAS BEEN ACQUIRED FOR INVESTMENT ONLY AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED IN
THE ABSENCE OF REGISTRATION OF THE RESALE THEREOF UNDER THE SECURITIES ACT OR AN OPINION OF COUNSEL REASONABLY SATISFACTORY IN FORM, SCOPE AND SUBSTANCE TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED. 

SECOND AMENDED AND RESTATED PROMISSORY NOTE 
  

			
	Principal Amount: Up to $300,000	  	 Dated as of September 30, 2021

New York, New York

 Reference is made to that certain Promissory Note (as amended and restated through the date hereof, the
“Original Note”), dated as of January 21, 2021 (the “Effective Date”), by and between Juniper II Corp., a Delaware corporation and blank check company (the “Maker”) and Juniper II Management,
LLC, a Delaware limited liability company (the “Payee”). This Note amends and restates the Original Note in its entirety and shall be deemed effective as of the Effective Date. 

The Maker promises to pay to the order of the Payee or its registered assigns or successors in interest, or order, the principal sum of up to
Three Hundred Thousand Dollars ($300,000) in lawful money of the United States of America, on the terms and conditions described below. All payments on this Note shall be made by check or wire transfer of immediately available funds or as
otherwise determined by the Maker to such account as the Payee may from time to time designate by written notice in accordance with the provisions of this Note. 

1. Principal. The principal balance of this Note shall be payable by the Maker on the earlier
of: (i) December 31, 2021 or (ii) the date on which Maker consummates an initial public offering of its securities (the “IPO”). The principal balance may be prepaid at any time. Under no circumstances shall any
individual, including but not limited to any officer, director, employee or shareholder of the Maker, be obligated personally for any obligations or liabilities of the Maker hereunder. 

2. Interest. No interest shall accrue on the unpaid principal balance of this Note. 

3. Drawdown Requests. Maker and Payee agree that Maker may request up to Three Hundred
Thousand Dollars ($300,000) for costs reasonably related to Maker’s initial public offering of its securities. The principal of this Note may be drawn down from time to time prior to the earlier of: (i) December 31, 2021 or
(ii) the date on which Maker consummates an initial public offering of its securities, upon written request from Maker to Payee (each, a “Drawdown Request”). Each Drawdown Request must state the amount to be drawn down, and
must not be an amount less than One Thousand Dollars ($1,000) unless agreed upon by Maker and Payee. Payee shall fund each Drawdown Request no later than one (1) business day after receipt of a Drawdown Request; provided, however, that the
maximum amount of drawdowns collectively under this Note is Three Hundred Thousand Dollars ($300,000). No fees, payments or other amounts shall be due to Payee in connection with, or as a result of, any Drawdown Request by Maker. 

4. Application of Payments. All payments shall be applied first to payment in full of any costs
incurred in the collection of any sum due under this Note, including (without limitation) reasonable attorney’s fees, then to the payment in full of any late charges and finally to the reduction of the unpaid principal balance of this Note.

 5. Events of Default. The following shall constitute an event of default (“Event of
Default”): 
 (a) Failure to Make Required Payments. Failure by Maker to pay the principal amount due pursuant to this Note
within five (5) business days of the date specified above. 

 (b) Voluntary Bankruptcy, Etc. The commencement by Maker of a voluntary case under
any applicable bankruptcy, insolvency, reorganization, rehabilitation or other similar law, or the consent by it to the appointment of or taking possession by a receiver, liquidator, assignee, trustee, custodian, sequestrator (or other similar
official) of Maker or for any substantial part of its property, or the making by it of any assignment for the benefit of creditors, or the failure of Maker generally to pay its debts as such debts become due, or the taking of corporate action by
Maker in furtherance of any of the foregoing. 
 (c) Involuntary Bankruptcy, Etc. The entry of a decree or order for relief by a court
having jurisdiction in the premises in respect of Maker in an involuntary case under any applicable bankruptcy, insolvency or other similar law, or appointing a receiver, liquidator, assignee, custodian, trustee, sequestrator (or similar official)
of Maker or for any substantial part of its property, or ordering the winding-up or liquidation of its affairs, and the continuance of any such decree or order unstayed and in effect for a period of 60
consecutive days. 
 6. Remedies. 

(a) Upon the occurrence of an Event of Default specified in Section 5(a) hereof, Payee may, by written notice to Maker, declare this Note
to be due immediately and payable, whereupon the unpaid principal amount of this Note, and all other amounts payable hereunder, shall become immediately due and payable without presentment, demand, protest or other notice of any kind, all of which
are hereby expressly waived, anything contained herein or in the documents evidencing the same to the contrary notwithstanding.
 (b) Upon
the occurrence of an Event of Default specified in Sections 5(b) and 5(c), the unpaid principal balance of this Note, and all other sums payable with regard to this Note, shall automatically and immediately become due and payable, in all cases
without any action on the part of Payee. 
 7. Waivers. Maker and all endorsers and guarantors
of, and sureties for, this Note waive presentment for payment, demand, notice of dishonor, protest, and notice of protest with regard to the Note, all errors, defects and imperfections in any proceedings instituted by Payee under the terms of this
Note, and all benefits that might accrue to Maker by virtue of any present or future laws exempting any property, real or personal, or any part of the proceeds arising from any sale of any such property, from attachment, levy or sale under
execution, or providing for any stay of execution, exemption from civil process, or extension of time for payment; and Maker agrees that any real estate that may be levied upon pursuant to a judgment obtained by virtue hereof or any writ of
execution issued hereon, may be sold upon any such writ in whole or in part in any order desired by Payee. 
 8.
Unconditional Liability. Maker hereby waives all notices in connection with the delivery, acceptance, performance, default, or enforcement of the payment of this Note, and agrees that its liability shall be
unconditional, without regard to the liability of any other party, and shall not be affected in any manner by any indulgence, extension of time, renewal, waiver or modification granted or consented to by Payee, and consents to any and all extensions
of time, renewals, waivers, or modifications that may be granted by Payee with respect to the payment or other provisions of this Note, and agrees that additional makers, endorsers, guarantors, or sureties may become parties hereto without notice to
Maker or affecting Maker’s liability hereunder. 
 9. Notices. All notices, statements or
other documents which are required or contemplated by this Note shall be made in writing and delivered: (i) personally or sent by first class registered or certified mail, overnight courier service or facsimile or electronic transmission to the
address designated in writing, (ii) by facsimile to the number most recently provided to such party or such other address or fax number as may be designated in writing by such party or (iii) by electronic mail, to the electronic mail
address most recently provided to such party or such other electronic mail address as may be designated in writing by such party. Any notice or other communication so transmitted shall be deemed to have been given on the day of delivery, if
delivered personally, on the business day following receipt of written confirmation, if sent by facsimile or electronic transmission, one (1) business day after delivery to an overnight courier service or five (5) days after mailing if
sent by mail. 
 10. Construction. THIS NOTE SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE
WITH THE LAWS OF NEW YORK, WITHOUT REGARD TO CONFLICT OF LAW PROVISIONS THEREOF. 

 11. Severability. Any provision contained in
this Note which is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction. 
 12.
Trust Waiver. Notwithstanding anything herein to the contrary, the Payee hereby waives any and all right, title, interest or claim of any kind (“Claim”) in or to any distribution of or from the
trust account (the “Trust Account”) to be established in which the proceeds of the IPO (including the deferred underwriters discounts and commissions) and certain of the proceeds of the sale of warrants to be issued in a private
placement to occur in connection with the closing of the IPO are to be deposited, as described in greater detail in the registration statement and prospectus to be filed with the U.S. Securities and Exchange Commission in connection with the IPO,
and hereby agrees not to seek recourse, reimbursement, payment or satisfaction for any Claim against the Trust Account for any reason whatsoever. 

13. Amendment; Waiver. Any amendment hereto or waiver of any provision hereof may be made with,
and only with, the written consent of the Maker and the Payee. 
 14. Assignment. No
assignment or transfer of this Note or any rights or obligations hereunder may be made by any party hereto (by operation of law or otherwise) without the prior written consent of the other party hereto and any attempted assignment without the
required consent shall be void. 
 [Signature page follows] 

 IN WITNESS WHEREOF, Maker, intending to be legally bound hereby, has caused this Note
to be duly executed by the undersigned as of the day and year first above written. 
  

			
	JUNIPER II CORP.
		
	By:	 	/s/ Murray Grainger
		 	Name: Murray Grainger
		 	Title:   Chief Executive Officer

 Acknowledged and agreed: 
  

			
	JUNIPER II MANAGEMENT, LLC
		
	By:	 	/s/ Roger Fradin
		 	Name: Roger Fradin
		 	Title:  Sole Manager

 [Signature Page to Promissory Note]EX-10.2

 Exhibit 10.2 

[•], 2021 
 Juniper II Corp. 

14 Fairmount Avenue 
 Chatham NJ 07928 

Morgan Stanley 
 1585 Broadway, 36th Floor 

New York, NY 10036 
 UBS Securities LLC 

1285 Avenue of the Americas 
 New York, NY 10019 

Re: Initial Public Offering 
 Ladies and Gentlemen:

 This letter (this “Letter Agreement”) is being delivered to you in accordance with the Underwriting Agreement
(the “Underwriting Agreement”) to be entered into by and between Juniper II Corp., a Delaware corporation (the “Company”), Morgan Stanley and UBS Securities LLC (the
“Underwriters”), relating to an underwritten initial public offering (the “Public Offering”), of 22,500,000 of the Company’s units (including up to 3,375,000 units that may be purchased to cover
over-allotments, if any) (the “Units”), each comprised of one share of the Company’s Class A common stock, par value $0.0001 per share (the “Common Stock”), and
one-half of one warrant. Each whole Warrant (each, a “Warrant”) entitles the holder thereof to purchase one share of Common Stock at a price of $11.50 per share, subject to adjustment.
The Units will be sold in the Public Offering pursuant to a registration statement on Form S-1 and a prospectus (the “Prospectus”) included therein, filed by the Company with the
Securities and Exchange Commission (the “Commission”) and the Company has applied to have the Units listed on the New York Stock Exchange. Certain capitalized terms used herein are defined in paragraph 12 hereof. 

In order to induce the Company and the Underwriters to enter into the Underwriting Agreement and to proceed with the Public Offering and for
other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Juniper II Management, LLC, a Delaware limited liability company (the “Sponsor”), and the undersigned individuals, each of
whom is a member of the Company’s board of directors, a nominee for membership on the board of directors and/or an executive officer of the Company’s (each, an “Insider” and collectively, the
“Insiders”), hereby agrees with the Company as follows: 
 1. It is acknowledged and agreed that the Company shall
not enter into a definitive agreement regarding a proposed Business Combination without the prior consent of the Sponsor. The Sponsor and each Insider agrees that if the Company seeks stockholder approval of a proposed Business Combination, then in
connection with such proposed Business Combination, it, he or she shall (i) vote any shares of Capital Stock owned by it, him or her in favor of any proposed Business Combination and (ii) not redeem any shares of Common Stock owned by it,
him or her in connection with such stockholder approval. If the Company seeks to consummate a proposed Business Combination by engaging in a tender offer, the Sponsor and each Insider agrees that it, he or she will not sell or tender any shares of
Common Stock owned by it, him or her in connection therewith. 

 2. In the event that the Company fails to consummate a Business Combination within eighteen
(18) months, the Company may extend the time period by which it must consummate a Business Combination by an additional six (6) months for a total of 24 months, provided the Sponsor its affiliates or its designees deposits into the Trust Account (as
defined below) an amount equal to 1% of the gross proceeds of the Public Offering, representing $0.10 for each Unit sold in the Public Offering on or prior to the 18-month anniversary of the closing of the Public Offering. Such payment would be in
the form of a non-interest-bearing loan. Pursuant to this Letter Agreement, the Sponsor has agreed to waive its right to be repaid for such loan in the event that the Company fails to consummate a Business Combination. Notwithstanding anything to
the contrary herein, the Sponsor, its affiliates and its designees shall not be obligated to fund the Trust Account to extend the time for the Company to consummate a Business Combination. 

The Sponsor and each Insider hereby agrees that in the event that the Company fails to consummate a Business Combination within 18 months (or
up to 24 months if the Company extends the period of time to consummate a Business Combination, in accordance with the Company’s amended and restated certificate of incorporation (as it may be amended from time to time, the
“Charter”)) from the closing of the Public Offering, or such later period approved by the Company’s stockholders in accordance with the Company’s Charter, the Sponsor and each Insider shall take all reasonable steps
to cause the Company to (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than 10 business days thereafter, subject to lawfully available funds therefor, redeem 100% of the
Common Stock sold as part of the Units in the Public Offering (the “Offering Shares”), at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust
Account, including interest earned on the funds held in the Trust Account and not previously released to the Company to pay franchise and income taxes (less up to $100,000 of such net interest to pay dissolution expenses), divided by the number of
then outstanding Offering Shares, which redemption will completely extinguish all Public Stockholders’ rights as stockholders (including the right to receive further liquidation distributions, if any), subject to applicable law, and
(iii) as promptly as reasonably possible following such redemption, subject to the approval of the Company’s remaining stockholders and the Company’s board of directors, dissolve and liquidate, subject in each case to the
Company’s obligations under Delaware law to provide for claims of creditors and other requirements of applicable law. The Sponsor and each Insider agrees to not propose any amendment to the Company’s Charter that would affect the substance
or timing of the Company’s obligation to redeem 100% of the Offering Shares if the Company does not complete a Business Combination within the time period set forth in the Company’s Charter with respect to any other provisions relating to
the rights of holders of our Common Stock, unless the Company provides its public stockholders with the opportunity to redeem their Offering Shares upon approval of any such amendment at a per-share price,
payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest earned on the funds held in the Trust Account and not previously released to the Company to pay its franchise and income taxes, divided by the
number of then outstanding Offering Shares. 
 The Sponsor and each Insider acknowledges that it or he or she has no right, title, interest
or claim of any kind in or to any monies held in the Trust Account or any other asset of the Company as a result of any liquidation of the Company with respect to the Founder Shares held by it. The Sponsor and each Insider hereby further waives,
with respect to any shares of Common Stock held by it or him, if any, any redemption rights it or he or she may have in connection with the consummation of a Business Combination, including, without limitation, any such rights available in the
context of a stockholder vote to approve such Business Combination or in the context of a tender offer made by the Company to purchase shares of Common Stock (although the Sponsor, the Insiders and their respective affiliates shall be entitled to
redemption and liquidation rights with respect to any shares of Common Stock it or they hold if the Company fails to consummate a Business Combination within the time period set forth in the Company’s Charter. 

3. The undersigned acknowledges and agrees that prior to entering into a definitive agreement for a Business Combination with a target business
that is affiliated with the undersigned or any other Insiders of the Company or their affiliates, such transaction must be approved by a majority of the Company’s disinterested independent directors and the Company must obtain an opinion from
an independent investment banking firm, which is a member of the Financial Industry Regulatory Authority, or an independent accounting firm that such Business Combination is fair to the Company’s unaffiliated stockholders from a financial point
of view. 

 4. During the period commencing on the effective date of the Underwriting Agreement and
ending 180 days after such date, the Sponsor and each Insider shall not, without the prior written consent of the Underwriters, Transfer any Units, shares of Common Stock, Founder Shares, Warrants or any securities convertible into, or exercisable,
or exchangeable for, shares of Common Stock owned by it or him. Each of the Insiders and the Sponsor acknowledges and agrees that, prior to the effective date of any release or waiver, of the restrictions set forth in this paragraph 4 or paragraph 8
below, the Company shall announce the impending release or waiver by press release through a major news service at least two business days before the effective date of the release or waiver. Any release or waiver granted shall only be effective two
business days after the publication date of such press release. The provisions of this paragraph will not apply if the release or waiver is effected solely to permit a transfer not for consideration and the transferee has agreed in writing to be
bound by the same terms described in this Letter Agreement to the extent and for the duration that such terms remain in effect at the time of the transfer. 

5. In the event of the liquidation of the Trust Account, the Sponsor (which for purposes of clarification shall not extend to any other
shareholders, members or managers of the Sponsor, or any of the other undersigned) agrees to indemnify and hold harmless the Company against any and all loss, liability, claim, damage and expense whatsoever (including, but not limited to, any and
all legal or other expenses reasonably incurred in investigating, preparing or defending against any litigation, whether pending or threatened, or any claim whatsoever) to which the Company may become subject as a result of any claim by (i) any
third party for services rendered or products sold to the Company or (ii) a prospective target business with which the Company has entered into an acquisition agreement (a
“Target”); provided, however, that such indemnification of the Company by the Sponsor shall apply only to the extent necessary to ensure that such claims by a third party for services rendered (other
than the Company’s independent public accountants) or products sold to the Company or a Target do not reduce the amount of funds in the Trust Account to below (i) $10.20 per share of the Offering Shares or (ii) such lesser amount per
share of the Offering Shares held in the Trust Account due to reductions in the value of the trust assets as of the date of the liquidation of the Trust Account, in each case, net of the amount of interest earned on the property in the Trust Account
which may be withdrawn to pay franchise and income taxes, except as to any claims by a third party (including a Target) who executed a waiver of any and all rights to seek access to the Trust Account and except as to any claims under the
Company’s indemnity of the Underwriters against certain liabilities, including liabilities under the Securities Act of 1933, as amended (the “Securities Act”). In the event that any such executed waiver is deemed to be
unenforceable against such third party, the Sponsor shall not be responsible to the extent of any liability for such third party claims. The Sponsor shall have the right to defend against any such claim with counsel of its choice reasonably
satisfactory to the Company if, within 15 days following written receipt of notice of the claim to the Sponsor, the Sponsor notifies the Company in writing that it shall undertake such defense. 

 6. To the extent that the Underwriters do not exercise its over-allotment option to purchase
up to an additional 3,375,000 Units within 45 days from the date of the Prospectus (and as further described in the Prospectus), the Sponsor agrees to forfeit, at no cost, a number of Founder Shares in the aggregate equal to 843,750 multiplied by a
fraction, (i) the numerator of which is 3,375,000 minus the number of Units purchased by the Underwriters upon the exercise of their over-allotment option, and (ii) the denominator of which is 3,375,000. The forfeiture will be adjusted to
the extent that the over-allotment option is not exercised in full by the Underwriters so that the Initial Stockholders will own an aggregate of 20.0% of the Company’s issued and outstanding shares of Capital Stock after the Public Offering
(not including shares of Common Stock underlying the Warrants or Private Placement Warrants). 
 7. (a) In order to minimize potential
conflicts of interest that may arise from multiple corporate affiliations, the Insiders hereby agree that until the earliest of the Company’s initial Business Combination or liquidation, the Insiders shall present to the Company for its
consideration, prior to presentation to any other entity, any target business that has a fair market value of at least 80% of the assets held in the Trust Account (excluding the amount of deferred underwriting discounts held in trust and taxes
payable on the interest earned on the trust account), subject to any existing or future fiduciary or contractual obligations the undersigned might have. 

(b) The Sponsor and each Insider hereby agrees and acknowledges that: (i) the Underwriters and the Company would be irreparably injured in
the event of a breach by such Sponsor or an Insider of its, his or her obligations under paragraphs 1, 2, 3, 4, 5, 6, 7(a), 7(b), 8(a), 8(b), and 10, as applicable, of this Letter Agreement (ii) monetary damages may not be an adequate remedy
for such breach and (iii) the non-breaching party shall be entitled to injunctive relief, in addition to any other remedy that such party may have in law or in equity, in the event of such breach. 

8. (a) The Sponsor and each Insider agrees that it, he or she shall not Transfer any Founder Shares (or shares of Common Stock issuable upon
conversion thereof) until the earlier of (A) one year after the completion of the Company’s initial Business Combination or (B) subsequent to the Business Combination, (x) if the closing price of the Common Stock equals or
exceeds $12.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading day period commencing at least 150 days
after the Company’s initial Business Combination or (y) the date on which the Company completes a liquidation, merger, capital stock exchange, reorganization or other similar transaction that results in all of the Company’s
stockholders having the right to exchange their shares of Common Stock for cash, securities or other property (the “Founder Shares Lock-up Period”). 

(b) The Sponsor and each Insider agrees that it, he or she shall not Transfer any Private Placement Warrants (or shares of Common Stock issued
or issuable upon the exercise of the Private Placement Warrants), until 30 days after the completion of a Business Combination (the “Private Placement Warrants Lock-up Period”, together
with the Founder Shares Lock-up Period, the “Lock-up Periods”). 

(c) Notwithstanding the provisions set forth in paragraphs 8(a) and (b), Transfers of the Founder Shares, Private Placement Warrants and
shares of Common Stock issued or issuable upon the exercise or conversion of the Private Placement Warrants or the Founder Shares and that are held by the Sponsor, any Insider or any of their permitted transferees (that have complied with this
paragraph 8(c)), are permitted (a) to the Company’s officers or directors, any affiliates or family members of any of the Company’s officers or directors, any members of the Sponsor or any affiliate of the members of the Sponsor, any
affiliates of the Sponsor, or any employees of such affiliates; (b) in the case of an individual, 

 
transfers by gift to a member of the individual’s immediate family, to a trust, the beneficiary of which is a member of the individual’s immediate family or an affiliate of such person,
or to a charitable organization; (c) in the case of an individual, transfers by virtue of laws of descent and distribution upon death of the individual; (d) in the case of an individual, transfers pursuant to a qualified domestic relations
order; (e) transfers by private sales or transfers made in connection with the consummation of a Business Combination at prices no greater than the price at which the securities were originally purchased; (f) transfers in the event of the
Company’s liquidation prior to the completion of an initial Business Combination; (g) transfers by virtue of the laws of the State of Delaware or the Sponsor’s limited liability company agreement upon dissolution of the Sponsor;
(h) to the Company for no value for cancellation in connection with the consummation of an initial Business Combination or pursuant to paragraph 6 herein; and (i) in the event of the Company’s liquidation, merger, capital stock
exchange, reorganization or other similar transaction which results in all of the Company’s stockholders having the right to exchange their shares of Common Stock for cash, securities or other property subsequent to the completion of the
Company’s initial Business Combination; provided, however, that in the case of clauses (a) through (e) these permitted transferees must enter into a written agreement agreeing to be bound by the restrictions herein. 

9. Each of the Insiders agrees to be a director or officer of the Company, as applicable, until the earlier of the consummation by the Company
of an initial Business Combination, the liquidation of the Company, or his or her removal, death or incapacity. In the event of the removal or resignation of an Insider as a director or officer (as applicable), each Insider agrees that he or she
will not, prior to the consummation of the Business Combination, without the prior express written consent of the Company, (i) use for the benefit of the undersigned or to the detriment of the Company or (ii) disclose to any third party
(unless required by law or governmental authority), any information regarding a potential target of the Company that is not generally known by persons outside of the Company, the Sponsor, or their respective affiliates. The Sponsor and each Insider
represents and warrants that it, he or she has never been suspended or expelled from membership in any securities or commodities exchange or association or had a securities or commodities license or registration denied, suspended or revoked. Each
Insider’s biographical information furnished to the Company (including any such information included in the Prospectus) is true and accurate in all respects and does not omit any material information with respect to the Insider’s
background and contains all of the information required to be disclosed pursuant to Item 401 of Regulation S-K, promulgated under the Securities Act. Each Insider’s questionnaire furnished to the Company
and the Underwriters is true and accurate in all material respects. Each Insider represents and warrants that: it, he or she is not subject to or a respondent in any legal action for, any injunction, cease-and-desist order or order or stipulation to desist or refrain from any act or practice relating to the offering of securities in any jurisdiction; it or he or she has never been convicted of, or pleaded
guilty to, any crime (i) involving fraud, (ii) relating to any financial transaction or handling of funds of another person, or (iii) pertaining to any dealings in any securities and it or he or she is not currently a defendant in any
such criminal proceeding. 
 10. Except as disclosed in the Prospectus, neither the Sponsor nor any Insider nor any affiliate of the Sponsor
or any Insider, nor any director or officer of the Company, shall receive from the Company any finder’s fee, reimbursement, consulting fee, monies in respect of any repayment of a loan or other compensation prior to, or in connection with any
services rendered in order to effectuate the consummation of the Company’s initial Business Combination (regardless of the type of transaction that it is), other than the following, none of 

 
which will be made from the proceeds held in the Trust Account prior to the completion of the initial Business Combination: repayment of a loan and advances up to an aggregate of $300,000 made to
the Company by the Sponsor; payment to an affiliate of the Sponsor for office space, utilities and secretarial and administrative support for a total of $10,000 per month; interest earned on the funds held in the trust account may be released to the
Company to pay its franchise and income tax obligations; reimbursement for any reasonable out-of-pocket expenses related to identifying, investigating and consummating
an initial Business Combination, and repayment of loans, if any, and on such terms as to be determined by the Company from time to time, made by the Sponsor or any of the Company’s officers or directors to finance transaction costs in
connection with an intended initial Business Combination, provided, that, if the Company does not consummate an initial Business Combination, a portion of the working capital held outside the Trust Account may be used by the Company to repay such
loaned amounts so long as no proceeds from the Trust Account are used for such repayment. Up to $1,500,000 of such loans may be convertible into warrants at a price of $1.00 per whole warrant at the option of the lender. Such warrants would be
identical to the Private Placement Warrants, including as to exercise price, exercisability and exercise period. 
 11. The Sponsor and each
Insider has full right and power, without violating any agreement to which it is bound (including, without limitation, any non-competition or non-solicitation agreement
with any employer or former employer), to enter into this Letter Agreement and, as applicable, to serve as a director on the board of directors of the Company and hereby consents to being named in the Prospectus as a director of the Company. 

12. As used herein, (i) “Business Combination” shall mean a merger, capital stock exchange, asset acquisition,
stock purchase, reorganization or similar business combination, involving the Company and one or more businesses; (ii) “Capital Stock” shall mean, collectively, the Common Stock and the Founder Shares;
(iii) “Founder Shares” shall mean (a) the 6,468,750 shares of the Company’s Class B common stock, par value $0.0001 per share, initially issued to the Sponsor (up to 843,750 shares of which are subject to
complete or partial forfeiture by the Sponsor if the over-allotment option is not exercised by the Underwriters) for an aggregate purchase price of $25,000, or $0.004 per share, prior to the consummation of the Public Offering;
(iv) “Initial Stockholders” shall mean the Sponsor and any Insider that holds Founder Shares; (v) “Private Placement Warrants” shall mean the Warrants to purchase 12,000,000 shares of Common
Stock of the Company (or 13,350,000 shares of Common Stock if the over-allotment option is exercised in full) that the Sponsor has agreed to purchase for an aggregate purchase price of $12,000,000 (or $13,350,000 if the over-allotment option is
exercised in full), or $2.00 per Warrant, in a private placement that shall occur simultaneously with the consummation of the Public Offering; (vi) “Public Stockholders” shall mean the holders of securities issued in the
Public Offering; (vii) “Trust Account” shall mean the trust fund into which a portion of the net proceeds of the Public Offering and certain of the proceeds from the sale of the Private Placement Warrants shall be
deposited; and (viii) “Transfer” shall mean the (a) sale of, offer to sell, contract or agreement to sell, hypothecate, pledge, grant of any option to purchase or otherwise dispose of or agreement to dispose of,
directly or indirectly, or establishment or increase of a put equivalent position or liquidation with respect to or decrease of a call equivalent position within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, and
the rules and regulations of the Commission promulgated thereunder with respect to, any security, (b) entry into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of
any security, whether any such transaction is to be settled by delivery of such securities, in cash or otherwise, or (c) public announcement of any intention to effect any transaction specified in clause (a) or (b). 

 13. This Letter Agreement constitutes the entire agreement and understanding of the parties
hereto in respect of the subject matter hereof and supersedes all prior understandings, agreements, or representations by or among the parties hereto, written or oral, to the extent they relate in any way to the subject matter hereof or the
transactions contemplated hereby. This Letter Agreement may not be changed, amended, modified or waived (other than to correct a typographical error) as to any particular provision, except by a written instrument executed by all parties hereto. 

14. No party hereto may assign either this Letter Agreement or any of its rights, interests, or obligations hereunder without the prior written
consent of the other party. Any purported assignment in violation of this paragraph shall be void and ineffectual and shall not operate to transfer or assign any interest or title to the purported assignee. This Letter Agreement shall be binding on
the Sponsor and each Insider and their respective successors, heirs and assigns and permitted transferees. 
 15. This Letter Agreement shall
be governed by and construed and enforced in accordance with the laws of the State of New York, without giving effect to conflicts of law principles that would result in the application of the substantive laws of another jurisdiction. The parties
hereto (i) all agree that any action, proceeding, claim or dispute arising out of, or relating in any way to, this Letter Agreement shall be brought and enforced in the courts of New York City, in the State of New York, and irrevocably submit
to such jurisdiction and venue, which jurisdiction and venue shall be exclusive and (ii) waive any objection to such exclusive jurisdiction and venue or that such courts represent an inconvenient forum. 

16. Any notice, consent or request to be given in connection with any of the terms or provisions of this Letter Agreement shall be in writing
and shall be sent by express mail or similar private courier service, by certified mail (return receipt requested), by hand delivery or facsimile transmission. 

17. This Letter Agreement shall terminate on the earlier of (i) the expiration of the Lock-up
Periods or (ii) the liquidation of the Company; provided further that paragraph 5 of this Letter Agreement shall survive such liquidation. 

[Signature Page Follows] 
  

 
			
	 Sincerely,

 

	 JUNIPER II MANAGEMENT, LLC

 

	 By:
	 	  

	 Name: Roger Fradin

	 Title: Managing Member

		
	 By:
	 	  

	 Roger Fradin

		
		 	  

	 Mitchell Jacobson

		
		 	  

	 Mark Levy

		
		 	  

		 	 Noah Kindler

		
		 	  

		 	 Murray Grainger

		
		 	
                     

		 	 Andrew Teich

 Acknowledged and Agreed: 

JUNIPER II CORP. 
  

			
	 By:
	 	              

	 Name:
	 	 Noah Kindler

	Title:	 	Chief Financial Officer and Chief Technology Officer

 [Signature Page to Letter Agreement]

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