Document:

Exhibit 10.4

 

PRIVATE PLACEMENT WARRANTS PURCHASE AGREEMENT

 

THIS PRIVATE PLACEMENT WARRANTS
PURCHASE AGREEMENT, dated as of  [●], 2021 (as it may from time to time be amended and including all exhibits referenced
herein, this “Agreement”), is entered into by and among AMCI Acquisition Corp. II, a Delaware corporation (the “Company”),
and AMCI Sponsor II LLC, a Delaware limited liability company (the “Purchaser”).

 

WHEREAS, the Company
intends to consummate an initial public offering of the Company’s units (the “Public Offering”), each unit
consisting of one share of the Company’s Class A common stock, par value $0.0001 per share (each, a
 “Share”), and one-half of one redeemable warrant. Each whole warrant entitles the holder to purchase one Share at
an exercise price of $11.50 per Share. The Purchaser has agreed to purchase an aggregate of  3,500,000 warrants (or 3,725,000
warrants in the aggregate to the extent the over-allotment option in connection with the Public Offering is exercised) (the
 “Private Placement Warrants”), each Private Placement Warrant entitling the holder to purchase one Share at an
exercise price of $11.50 per Share.

 

NOW THEREFORE, in consideration
of the mutual promises contained in this Agreement and other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, the parties to this Agreement hereby, intending legally to be bound, agree as follows:

 

AGREEMENT

 

Section 1     Authorization,
Purchase and Sale; Terms of the Private Placement Warrants.

 

A.            Authorization
of the Private Placement Warrants. The Company has duly authorized the issuance and sale of the Private Placement Warrants to the
Purchaser.

 

B.            Purchase
and Sale of the Private Placement Warrants.

 

On the date of the consummation
of the Public Offering or on such earlier time and date as may be mutually agreed by the Purchaser and the Company (the “Initial
Closing Date”), the Company shall issue and sell to the Purchaser, and the Purchaser shall purchase from the Company, an aggregate
of 3,500,000 Private Placement Warrants at a price of $1.00 per warrant for an aggregate purchase price of $3,500,000 (the “Purchase
Price”), which shall be paid by wire transfer of immediately available funds to the Company in accordance with the Company’s
wiring instructions at least one business day prior to the Initial Closing Date. On the Initial Closing Date, the Company, shall either,
at its option, deliver certificates evidencing the Private Placement Warrants purchased by the Purchaser on such date duly registered
in the Purchaser’s name to the Purchaser, or effect such delivery in book-entry form. On the date of the consummation of the closing
of the over-allotment option in connection with the Public Offering or on such earlier time and date as may be mutually agreed by the
Purchaser and the Company (each such date, an “Over-allotment Closing Date,” and each Over-allotment Closing Date (if
any) and the Initial Closing Date being sometimes referred to herein as a “Closing Date”), the Company shall issue
and sell to the Purchaser, and the Purchaser shall purchase from the Company, up to an aggregate of 225,000 Private Placement Warrants,
in the same proportion as the amount of the over-allotment option that is exercised, at a price of $1.00 per warrant for an aggregate
purchase price of up to $225,000 (if the over-allotment option in connection with the Public Offering is exercised in full) (the “Over-allotment
Purchase Price”), which shall be paid by wire transfer of immediately available funds to the Company in accordance with the
Company’s wiring instructions, at least one business day prior to the Over-allotment Closing Date. On the Over-allotment Closing
Date, upon the payment by the Purchaser of the Over-allotment Purchase Price payable by them by wire transfer of immediately available
funds to the Company, the Company shall either, at its option, deliver certificates evidencing the Private Placement Warrants purchased
by the Purchaser on such date duly registered in the Purchaser’s name to the Purchaser, or effect such delivery in book-entry form.

 

    

     

    

 

C.            Terms
of the Private Placement Warrants.

 

(i)            The
Private Placement Warrants shall have their terms set forth in a Warrant Agreement to be entered into by the Company and a warrant agent,
in connection with the Public Offering (a “Warrant Agreement”).

 

(ii)            At
or prior to the time of the Initial Closing Date, the Company and the Purchaser shall enter into a registration rights agreement (the
 “Registration Rights Agreement”) pursuant to which the Company will grant certain registration rights to the Purchaser
relating to the Private Placement Warrants and the Shares underlying the Private Placement Warrants.

 

Section 2     Representations
and Warranties of the Company. As a material inducement to the Purchaser to enter into this Agreement and purchase the Private Placement
Warrants, the Company hereby represents and warrants to the Purchaser (which representations and warranties shall survive each Closing
Date) that:

 

A.            Organization
and Corporate Power. The Company is a corporation duly organized, validly existing and in good standing under the laws of the State
of Delaware and is qualified to do business in every jurisdiction in which the failure to so qualify would reasonably be expected to
have a material adverse effect on the financial condition, operating results or assets of the Company. The Company possesses all requisite
corporate power and authority necessary to carry out the transactions contemplated by this Agreement and the Warrant Agreement.

 

B.            Authorization;
No Breach.

 

(i)            The
execution, delivery and performance of this Agreement and the Private Placement Warrants have been duly authorized and approved by the
Company as of each Closing Date. This Agreement constitutes a valid and binding obligation of the Company, enforceable in accordance with
its terms. Upon each issuance of Private Placement Warrants in accordance with, and payment pursuant to, the terms of the Warrant Agreement
and this Agreement, the Private Placement Warrants will constitute valid and binding obligations of the Company, enforceable in accordance
with their terms.

 

(ii)            The
execution and delivery by the Company of this Agreement and the Private Placement Warrants, the issuance and sale of the Private Placement
Warrants, the issuance of the Shares upon exercise of the Private Placement Warrants and the fulfillment of, and compliance with, the
respective terms hereof and thereof by the Company, do not and will not as of each Closing Date (a) conflict with or result in a
breach of the terms, conditions or provisions of, (b) constitute a default under, (c) result in the creation of any lien, security
interest, charge or encumbrance upon the Company’s capital stock or assets under, (d) result in a violation of, or (e) require
any authorization, consent, approval, exemption, action, notice, declaration or filing, in each case, by or to any court or administrative
or governmental body or agency pursuant to the certificate of incorporation or the bylaws of the Company (in effect on the date hereof
or as may be amended prior to completion of the contemplated Public Offering), or any material law, statute, rule or regulation to
which the Company is subject, or any agreement, order, judgment or decree to which the Company is subject, except for any filings required
after the date hereof under federal or state securities laws.

 

    2

     

    

 

C.            Title
to Securities. Upon issuance in accordance with, and payment pursuant to, the terms hereof and the Warrant Agreement, the Placement
Warrants will be duly and validly issued and the Shares issuable upon exercise of the Private Placement Warrants will be duly and validly
issued, fully paid and nonassessable. On the date of issuance of the Placement Warrants, the Shares issuable upon exercise of the Placement
Warrants shall have been reserved for issuance. Upon issuance in accordance with, and payment pursuant to, the terms hereof and the Warrant
Agreement, each Purchaser will have good title to the Private Placement Warrants and the Shares issuable upon exercise of such Private
Placement Warrants, free and clear of all liens, claims and encumbrances of any kind, other than (i) transfer restrictions hereunder
and under the other agreements contemplated hereby, (ii) transfer restrictions under federal and state securities laws, and (iii) liens,
claims or encumbrances imposed due to the actions of either Purchaser.

 

D.            Governmental
Consents. No permit, consent, approval or authorization of, or declaration to or filing with, any governmental authority is required
in connection with the execution, delivery and performance by the Company of this Agreement or the consummation by the Company of any
other transactions contemplated hereby.

 

Section 3     Representations
and Warranties of the Purchaser. As a material inducement to the Company to enter into this Agreement and issue and sell the Private
Placement Warrants to the Purchaser, the Purchaser hereby, severally and not jointly, represents and warrants to the Company (which representations
and warranties shall survive each Closing Date) that:

 

A.            Organization
and Requisite Authority. The Purchaser possesses all requisite power and authority necessary to carry out the transactions contemplated
by this Agreement.

 

B.            Authorization;
No Breach.

 

(i)            This
Agreement constitutes a valid and binding obligation of the Purchaser, enforceable in accordance with its terms, subject to bankruptcy,
insolvency, fraudulent conveyance, reorganization, moratorium and other laws of general applicability relating to or affecting creditors’
rights and to general equitable principles (whether considered in a proceeding in equity or law).

 

(ii)            The
execution and delivery by the Purchaser of this Agreement and the fulfillment of and compliance with the terms hereof by the Purchaser
does not and shall not as of each Closing Date conflict with or result in a breach by the Purchaser of the terms, conditions or provisions
of any agreement, instrument, order, judgment or decree to which the Purchaser is subject that would materially impact its ability to
perform its obligations hereunder.

 

C.            Investment
Representations.

 

(i)           The
Purchaser is acquiring the Private Placement Warrants and, upon exercise of the Private Placement Warrants, the Shares issuable upon such
exercise (collectively, the “Securities”), for the Purchaser’s own account, for investment purposes only and
not with a view towards, or for resale in connection with, any public sale or distribution thereof.

 

(ii)            The
Purchaser is an “accredited investor” as such term is defined in Rule 501(a)(3) of Regulation D of the Securities
Act of 1933, as amended (the “Securities Act”), and the Purchaser has not experienced a disqualifying event as enumerated
pursuant to Rule 506(d) of Regulation D under the Securities Act.

 

(iii)            The
Purchaser understands that the Securities are being offered and will be sold to it in reliance on specific exemptions from the registration
requirements of the United States federal and state securities laws and that the Company is relying upon the truth and accuracy of, and
the Purchaser’s compliance with, the representations and warranties of the Purchaser set forth herein in order to determine the
availability of such exemptions and the eligibility of the Purchaser to acquire such Securities.

 

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(iv)            The
Purchaser did not decide to enter into this Agreement as a result of any general solicitation or general advertising within the meaning
of Rule 502(c) under the Securities Act.

 

(v)             The
Purchaser has been furnished with all materials relating to the business, finances and operations of the Company and materials relating
to the offer and sale of the Securities which have been requested by the Purchaser. The Purchaser has been afforded the opportunity to
ask questions of the executive officers and directors of the Company. The Purchaser understands that its investment in the Securities
involves a high degree of risk and it has sought such accounting, legal and tax advice as it has considered necessary to make an informed
investment decision with respect to the acquisition of the Securities.

 

(vi)            The
Purchaser understands that no United States federal or state agency or any other government or governmental agency has passed on or made
any recommendation or endorsement of the Securities or the fairness or suitability of the investment in the Securities by the Purchaser
nor have such authorities passed upon or endorsed the merits of the offering of the Securities.

 

(vii)            The
Purchaser understands that: (a) the Securities have not been and are not being registered under the Securities Act or any state securities
laws, and may not be offered for sale, sold, assigned or transferred unless (1) subsequently registered thereunder or (2) sold
in reliance on an exemption therefrom; and (b) except as specifically set forth in the Registration Rights Agreement, neither the
Company nor any other person is under any obligation to register the Securities under the Securities Act or any state securities laws
or to comply with the terms and conditions of any exemption thereunder. While the Purchaser understands that Rule 144 under the Securities
Act is not available for the resale of securities initially issued by shell companies (other than business combination related shell companies)
or issuers that have been at any time previously a shell company, the Purchaser understands that Rule 144 includes an exception to
this prohibition if the following conditions are met: (i) the issuer of the securities that was formerly a shell company has ceased
to be a shell company; (ii) the issuer of the securities is subject to the reporting requirements of Section 13 or 15(d) of
the Securities Exchange Act of 1934, as amended (the “Exchange Act”); (iii) the issuer of the securities has filed
all Exchange Act reports and material required to be filed, as applicable, during the preceding 12 months (or such shorter period that
the issuer was required to file such reports and materials), other than Form 8-K reports; and (iv) at least one year has elapsed
from the time that the issuer filed current Form 10 type information with the SEC reflecting its status as an entity that is not
a shell company.

 

(viii)          The
Purchaser has knowledge and experience in financial and business matters, understands the high degree of risk associated with investments
in the securities of companies in the development stage such as the Company, is capable of evaluating the merits and risks of an investment
in the Securities and is able to bear the economic risk of an investment in the Securities in the amount contemplated hereunder for an
indefinite period of time. The Purchaser has adequate means of providing for its current financial needs and contingencies and will have
no current or anticipated future needs for liquidity which would be jeopardized by the investment in the Securities. The Purchaser can
afford a complete loss of its investment in the Securities.

 

Section 4     Conditions
of the Purchaser’s Obligations. The obligations of the Purchaser to purchase and pay for the Private Placement Warrants are
subject to the fulfillment, on or before each Closing Date, of each of the following conditions:

 

A.            Representations
and Warranties. The representations and warranties of the Company contained in Section 2 shall be true and correct at and as
of such Closing Date as though then made.

 

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B.            Performance.
The Company shall have performed and complied with all agreements, obligations and conditions contained in this Agreement that are
required to be performed or complied with by it on or before such Closing Date.

 

C.            No
Injunction. No litigation, statute, rule, regulation, executive order, decree, ruling or injunction shall have been enacted, entered,
promulgated or endorsed by or in any court or governmental authority of competent jurisdiction or any self-regulatory organization having
authority over the matters contemplated hereby, which prohibits the consummation of any of the transactions contemplated by this Agreement
or the Warrant Agreement.

 

D.            Warrant
Agreement and Registration Rights Agreement. The Company shall have entered into the Warrant Agreement and the Registration Rights
Agreement, each on terms satisfactory to the Purchaser.

 

E.            Corporate
Consents. The Company shall have obtained the consent of its Board of Directors authorizing the execution, delivery and performance
of this Agreement and the Warrant Agreement and the issuance and sale of the Private Placement Warrants hereunder.

 

Section 5     Conditions
of the Company’s Obligations. The obligations of the Company to the Purchaser under this Agreement are subject to the fulfillment,
on or before each Closing Date, of each of the following conditions:

 

A.            Representations
and Warranties. The representations and warranties of the Purchaser contained in Section 3 shall be true and correct at and
as of such Closing Date as though then made.

 

B.            Performance.
The Purchaser shall have performed and complied with all agreements, obligations and conditions contained in this Agreement that
are required to be performed or complied with by the Purchaser on or before such Closing Date.

 

C.            Corporate
Consents. The Company shall have obtained the consent of its Board of Directors authorizing the execution, delivery and performance
of this Agreement and the Warrant Agreement and the issuance and sale of the Private Placement Warrants hereunder.

 

D.            No
Injunction. No litigation, statute, rule, regulation, executive order, decree, ruling or injunction shall have been enacted, entered,
promulgated or endorsed by or in any court or governmental authority of competent jurisdiction or any self-regulatory organization having
authority over the matters contemplated hereby, which prohibits the consummation of any of the transactions contemplated by this Agreement
or the Warrant Agreement.

 

E.            Warrant
Agreement. The Company shall have entered into the Warrant Agreement on terms satisfactory to the Company.

 

    5

     

    

 

Section 6     Termination.
This Agreement may be terminated at any time after December 31, 2021 upon the election by either the Company or the Purchaser
upon written notice to the other party if the closing of the Public Offering does not occur prior to such date.

 

Section 7     Survival
of Representations and Warranties. All of the representations and warranties contained herein shall survive each Closing Date.

 

Section 8     Definitions.
Terms used but not otherwise defined in this Agreement shall have the meaning assigned to such terms in the registration statement
on Form S-1 the Company plans to file with the U.S. Securities and Exchange Commission under the Securities Act.

 

Section 9     Miscellaneous.

 

A.            Successors
and Assigns. Except as otherwise expressly provided herein, all covenants and agreements contained in this Agreement by or on behalf
of any of the parties hereto shall bind and inure to the benefit of the respective successors of the parties hereto whether so expressed
or not. Notwithstanding the foregoing or anything to the contrary herein, the parties may not assign this Agreement without the prior
written consent of the other party hereto, other than assignments by the Purchaser to its affiliates (including, without limitation,
one or more of its members).

 

B.            Severability.
Whenever possible, each provision of this Agreement shall be interpreted in such manner as to be effective and valid under applicable
law, but if any provision of this Agreement is held to be prohibited by or invalid under applicable law, such provision shall be ineffective
only to the extent of such prohibition or invalidity, without invalidating the remainder of this Agreement.

 

C.            Counterparts.
This Agreement may be executed simultaneously in two or more counterparts, none of which need contain the signatures of more than
one party, but all such counterparts taken together shall constitute one and the same agreement. In the event that any signature is delivered
by facsimile transmission or by e-mail delivery of a “pdf” format data file, such signature shall create a valid and binding
obligation of the party executing (or on whose behalf such signature is executed) with the same force and effect as if such facsimile
or “.pdf” signature page were an original thereof.

 

D.            Descriptive
Headings; Interpretation. The descriptive headings of this Agreement are inserted for convenience only and do not constitute a substantive
part of this Agreement. The use of the word “including” in this Agreement shall be by way of example rather than by limitation.

 

E.            Governing
Law. This Agreement shall be deemed to be a contract made under the laws of the State of New York and for all purposes shall be construed
in accordance with the internal laws of the State of New York.

 

F.            Amendments.
This Agreement may not be amended, modified or waived as to any particular provision, except by a written instrument executed by
all parties hereto.

 

[Signature Page Follows]

 

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IN
WITNESS WHEREOF, the parties hereto have executed this Agreement to be effective as of the date first set forth above.

 

	 	COMPANY:
	 	 
	 	 
	 	AMCI ACQUISITION CORP. II, a Delaware corporation
	 	 	 
	 	 	 
	 	By:	 
	 	 	
    Name: Nimesh Patel

    Title: Chief Executive Officer

 

	 	PURCHASER:
	 	 
	 	 
	 	AMCI SPONSOR II LLC, a Delaware limited liability company
	 	 
	 	 	 
	 	By:	 
	 	 	
    Name: Nimesh Patel

    Title: Sole Managing Member

 

[Signature Page to Private Placement Warrants
Purchase Agreement]Exhibit 10.9

 

June 3, 2021

 

[INVESTOR]

[ADDRESS]

 

Ladies and Gentlemen:

 

This letter agreement (“Agreement”)
sets forth the terms of the agreement between certain holders of shares of Class B common stock, par value $0.0001 per share (the
 “Founder Shares”), of AMCI Acquisition Corp. II, a Delaware corporation (the “SPAC”), forth on Exhibit A
hereto (collectively, the “Founders”) and the undersigned (“Investor”). The SPAC is a blank check
company whose business purpose is to effect a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar
business combination with one or more businesses (a “Business Combination”). The SPAC intends to consummate an initial
public offering (“IPO”) of units, each consisting of one share of Class A common stock of the SPAC and one-half
of one warrant, with each whole warrant exercisable to purchase one share of Class A common stock of the SPAC.

 

1.            Investor
hereby expresses an interest (the “Expression of Interest”) to purchase 9.9% of the number of such units sold in the
IPO (excluding any units sold by virtue of the underwriters’ exercise of their over-allotment option) (the “Purchased Public
Units”).In connection with the Expression of Interest, the Founders agree, severally and not jointly, to sell and transfer to
Investor the amount of Founder Shares set forth next to such Founders name on Exhibit A hereto (the “Transfer Shares”).
The consummation of the sale of the Founder Shares will occur upon the closing of the Business Combination for the same per-share price
that such Founders initially paid for the Founder Shares. Notwithstanding the foregoing, in the event Investor submits an order to purchase
less than 9.9% of the units sold in the IPO (excluding any units sold by virtue of the underwriters’ exercise of their over-allotment
option), then the number of Founder Shares that Investor shall have a right to purchase upon consummation of the Business Combination
shall be reduced to zero (0). In addition, if on the date of the vote by the SPAC’s stockholders to approve the Business Combination, Investor
elects to redeem any portion of the shares of Class A common stock (or otherwise at any time prior to the liquidation of the SPAC
if a Business Combination is not timely consummated), then the number of Founder Shares that Investor shall have the right to purchase
from the Founders shall be reduced to a number equal to the product of (a) the Transfer Shares multiplied by (b) the quotient
of (i) (x) the number of shares of Class A common stock underlying Purchased Public Units purchased by Investor in the
IPO less (y) the number of shares of Class A common stock so redeemed by the Investor, divided by (ii) the number of shares
of Class A common stock underlying Purchased Public Units purchased by Investor in the IPO. By way of example, and without limiting
the foregoing, if Investor elects to redeem 50% of the total number of shares of Class A common stock underlying its Purchased Public
Units, then the number of Founder Shares that Investor shall have the right to purchase from the Founders shall be reduced, on a pro rata
basis among the Founders, to 50% of the number of Founder Shares initially subject to Investor’s purchase right under this Agreement.

 

2.            Investor
acknowledges that the proceeds of the IPO and the sale of the private placement warrants, as described in the SPAC’s registration
statement, initially filed with the U.S. Securities and Exchange Commission (the “SEC”) on February 12, 2021,
as subsequently amended on March 15, 2021 and April 5, 2021, in connection with the IPO (the “Registration Statement”)
shall be deposited by the SPAC into the trust account (“Trust Account”) established by the SPAC for the benefit of
its public stockholders, as described in the Registration Statement. Investor further acknowledges that it has no right, title, interest
or claim of any kind in or to any monies held in the Trust Account (“Claim”) or any other asset of the SPAC as a result
of any liquidation of the SPAC other than with respect to shares of Class A common stock purchased by Investor in the IPO or in the
open market and hereby waives any Claim it may have in the future against the SPAC and will not seek recourse against the Trust Account
for any reason whatsoever (except in respect of any shares of Class A common stock of the SPAC purchased directly by Investor in
the IPO or in the open market).

 

3.            Investor
and SPAC acknowledge that as of the date hereof, the total number of units expected to be sold in the IPO is 15,000,000. Investor acknowledges
that, if in the course of the IPO, the SPAC decides that, due to market conditions at that time, it is necessary to reduce the proposed
IPO offering size, Investor’s allocation of Founder Shares as described in this Agreement shall be reduced proportionately.
SPAC and Founders acknowledge that, if in the course of the IPO, the SPAC decides to increase the proposed IPO offering size, Investor’s
allocation of Founder Shares as described in this Agreement shall be increased proportionately.

 

    

    

    

 

4.            Investor
acknowledges that the SPAC and the Founders may deem it necessary in order to facilitate a Business Combination for the Founders to forfeit,
transfer, exchange or amend the terms of all or any portion of the Founder Shares or to enter into any other arrangements with respect
to the Founder Shares to facilitate the consummation of such Business Combination, including voting in favor of any amendment to the terms
of the Founder Shares (a “Change in Investment”). The Founders shall have sole discretion to enter into any such agreement
or arrangement involving a Change in Investment, to vote in favor of any proposal involving a Change in Investment or to otherwise facilitate
or take any action to affect or permit any Change in Investment without the consent of Investor. Any such Change in Investment shall apply
pro rata to the Founder Shares held by the Founders and Investor based on the relative number of Founder Shares to be held by each on
the date of the closing of the transactions contemplated by this Agreement; provided, that in each case Investor has been given notice
at least two (2) business days prior to any proposed Change in Investment. Investor agrees to take all steps and execute all such
agreements as may be necessary or reasonably requested by the Founders to effectuate such Change in Investment on the same terms as applicable
to the Founders. If the Founders or any of their affiliates enter into any agreement that gives such persons the right, on an absolute
or contingent basis, to restore the value or original terms of any Founder Shares that were the subject of any such Change in Investment,
or to receive any other consideration, then Investor shall be provided the same rights on a pro rata basis.

 

5.            Investor
acknowledges and agrees that, upon receipt of the Founder Shares, it will execute agreements in form and balance typical for transactions
of this nature necessary to effectuate the foregoing agreements and obligations, including but not limited to (i) a registration
rights agreement and (ii) the letter agreement, containing customary voting, lock-up and waiver of rights provisions for such offerings,
entered into in connection with the IPO.

 

 6.            Investor hereby represents and warrants that, as applicable:

 

(a)            it
has been advised that the Founder Shares have not been registered under the Securities Act of 1933, as amended (the “Securities
Act”);

 

(b)            it
acknowledges that there exists no public market for the Founder Shares, that no such public market may develop in the future, the Founder
Shares, when sold or issued, will be “restricted securities” and as a result, Investor acknowledges that the Founder
Shares may be required to be held indefinitely unless subsequently registered under the Securities Act or unless an exemption from such
registration is available. Investor is aware of the provisions of Rule 144 promulgated under the Securities Act which permit resales
of securities purchased in a private placement subject to certain limitations and to the satisfaction of certain conditions provided for
thereunder, including, among other things, the existence of a public market for the securities, the availability of certain current public
information about the company issuing the securities, the resale occurring not less than six months after a party has purchased and paid
for the security to be sold, the sale being effected through a “broker’s transaction” or in transactions directly with
a “market maker” and the number of securities being sold during any three-month period not exceeding specified limitations.
Investor further acknowledges that the Founder Shares will be subject to certain lock-up restrictions, as described in the Registration
Statement, and may only be transferred pursuant to the terms of such lock-up. Investor also acknowledges that Rule 144 is not available
for the resale of securities initially issued by shell companies or issuers that have been at any time previously a shell company and
that Rule 144 will provide an exception to this prohibition only if (i) the SPAC has then ceased to be a shell company; (ii) the
SPAC is then subject to the reporting requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended
(the “Exchange Act”); (iii) the SPAC has then filed all Exchange Act reports and material required to be filed,
as applicable, during the preceding 12 months (or such shorter period that the SPAC was required to file such reports and materials),
other than Form 8-K reports; and (iv) at least one year has elapsed from the time that the SPAC filed current Form 10-type
information with the SEC reflecting its status as an entity that is not a shell company;

 

 (c)             it will be acquiring the Founder Shares for its own account for investment purposes only;

 

(d)            it
has no present intention of selling or otherwise disposing of the Founder Shares in violation of the securities laws of the United States;

 

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(e)            it
is an “accredited investor” as defined by Rule 501 of Regulation D promulgated under the Securities Act;

 

(f)            it
will, upon request, provide Founders to the completed an IRS Form W-9 or Form W-8BEN (or similar form), as applicable;

 

(g)            it
has had both the opportunity to ask questions and receive answers from the officers and directors of the SPAC and all persons acting on
its behalf concerning the terms and conditions of the offer made hereunder;

 

(h)            it
is familiar with the proposed business, management, financial condition and affairs of the SPAC;

 

(i)            it
has full power, authority and legal capacity to execute and deliver this Agreement and any documents contemplated herein or needed to
consummate the transactions contemplated in this Agreement;

 

(j)            this
Agreement constitutes its respective legal, valid and binding obligation, and is enforceable against it; and

 

(k)            Investor
is not, and is not acting as, an agent, representative, intermediary or nominee for any person identified on the list of blocked persons
maintained by the Office of Foreign Assets Control of the U.S. Treasury Department; and Investor has complied with all applicable U.S.
laws, regulations, directives and executive orders relating to anti-money laundering.

 

7.
             SPAC and Founders hereby represent and warrant that there
are no other agreements between SPAC, Founders, and an investor to purchase Founder Shares in connection with such investor’s
participation in the IPO, other than agreements which do not contain any terms materially more favorable to such investors than the
terms contained within this Agreement.

 

 8.             Miscellaneous.

 

(a)            Notices.
Any notice or other document required or permitted to be given or delivered to the parties hereto shall be in writing and sent: (i) by
registered or certified mail with return receipt requested (postage prepaid) or (ii) by a recognized overnight delivery service (with
charges prepaid).

 

If to the Founders, at:

 

c/o AMCI Acquisition Corp.
II

600 Steamboat Road

Greenwich, Connecticut 06830

Attention: Nimesh Patel

 

With a copy, which shall not
constitute notice, to:

 

White & Case LLP

1221 Avenue of the Americas,
45th Floor

New York, New York 10020

Attention: Elliott Smith

Email: Elliott.Smith@whitecase.com

 

If to Investor at:

 

[●]

 

With a copy, which shall not
constitute notice, to:

 

[●]

 

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(b)            Entire
Agreement. This Agreement, together with any other documents, instruments and writings that are delivered pursuant hereto or referenced
herein, represents the entire agreement between the parties hereto with respect to 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 of the transactions contemplated hereby. This Agreement may be terminated, modified, waived or amended only
by a writing executed and delivered by all parties hereto. No right or obligation of a party shall be assigned or otherwise transferred
without prior notice to and the written consent of the other party. Any assignment or transfer in violation of the foregoing shall be
null and void.

 

(c)            Counterparts;
Execution. This Agreement may be executed in any number of counterparts and by the different signatories hereto on separate counterparts,
each of which, when so executed, shall be deemed an original, but all such counterparts shall constitute but one and the same instrument.
This Agreement may be executed by facsimile transmission, PDF, electronic signature or other similar electronic means with the same force
and effect as if such signature page were an original thereof.

 

(d)            Law
Governing this Agreement. This Agreement, the entire relationship of the parties hereto, and any litigation between the parties (whether
grounded in contract, tort, statute, law or equity) shall be governed by, construed in accordance with, and interpreted pursuant to the
laws of the State of New York, without giving effect to its choice of law principles.

 

(e)            Successors.
All of the terms, agreements, covenants, representations, warranties, and conditions of this Agreement are binding upon, and inure to
the benefit of and are enforceable by, the parties hereto and their respective successors. Nothing in this Agreement, express or implied,
is intended to confer upon any party other than the parties hereto or their respective successors and assigns any rights, remedies, obligations
or liabilities under or by reason of this Agreement, except as expressly provided in this Agreement.

 

(f)            WAIVER
OF JURY TRIAL. EACH PARTY HERETO (INCLUDING ITS AFFILIATES, AGENTS, OFFICERS, DIRECTORS AND EMPLOYEES) HEREBY IRREVOCABLY WAIVES,
TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING
TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.

 

(g)            Specific
Enforcement; Consent to Jurisdiction. The Founders and Investor acknowledge and agree that irreparable damage would occur in the event
that any of the provisions of this Agreement were not performed in accordance with their specific terms or were otherwise breached. It
is accordingly agreed that the parties hereto shall be entitled to seek an injunction or injunctions to prevent or cure breaches of the
provisions of this Agreement and to enforce specifically the terms and provisions hereof, this being in addition to any other remedy to
which any of them may be entitled by law or equity. The parties hereby irrevocably and unconditionally (i) submit to the jurisdiction
of the state courts of New York and the United States District Court for the Southern District of New York for the purpose of any suit,
action or other proceeding arising out of or based upon this Agreement, (ii) agree not to commence any suit, action or other proceeding
arising out of or based upon this Agreement except in state courts of New York or the United States District Court for the Southern District
of New York, and (iii) waive, and agree not to assert, by way of motion, as a defense, or otherwise, in any such suit, action or
proceeding, any claim that it is not subject personally to the jurisdiction of the above-named courts, that its property is exempt or
immune from attachment or execution, that the suit, action or proceeding is brought in an inconvenient forum, that the venue of the suit,
action or proceeding is improper or that this Agreement or the subject matter hereof may not be enforced in or by such court.

 

(h)            Drafting.
This Agreement shall not be construed for or against a party based upon authorship.

 

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(i)            Assignment.
Investor may assign its rights and obligations under this Agreement to any of its affiliates that agrees to be bound by the terms of this
Agreement.

 

(j)            Captions;
Certain Definitions. The captions of the various sections and paragraphs of this Agreement have been inserted only for the purposes
of convenience; such captions are not a part of this Agreement and shall not be deemed in any manner to modify, explain, enlarge or restrict
any of the provisions of this Agreement. As used in this Agreement the term “person” shall mean and include an individual,
a partnership, a joint venture, a corporation, a limited liability company, a trust, an unincorporated organization or any other legal
entity and a government or any department or agency thereof.

 

(k)            Severability.
In the event that any term or provision of this Agreement shall be finally determined to be superseded, invalid, illegal or otherwise
unenforceable pursuant to applicable law by an authority having jurisdiction and venue, that determination shall not impair or otherwise
affect the validity, legality or enforceability: (i) by or before that authority of the remaining terms and provisions of this Agreement,
which shall be enforced as if the unenforceable term or provision were deleted, or (ii) by or before any other authority of any of
the terms and provisions of this Agreement.

 

(l)            Expenses.
Each of the Founders and Investor will bear its own costs and expenses incurred in connection with the preparation, execution and performance
of this Agreement and the consummation of the transactions contemplated hereby, including all fees and expenses of agents, representatives,
financial advisors, legal counsel and accountants. The SPAC shall be responsible for the fees of its transfer agent, stamp taxes and all
of The Depository Trust Company’s fees associated with the issuance of the Founder Shares and the securities issuable upon conversion
or exercise of the Founder Shares.

 

(m)            Confidentiality.
Except as may be required by law, regulation or applicable stock exchange listing requirements, unless and until the transactions contemplated
hereby and the terms hereof are publicly announced or otherwise publicly disclosed by the SPAC, the parties hereto shall keep confidential
and shall not publicly disclose the existence or terms of this Agreement. Notwithstanding the foregoing, Investor shall be permitted
to disclose any information to its affiliates and its and their respective directors, officers, employees, advisors, director or indirect
owners, agents and representatives, in each case so long as such person or entity has been advised of the confidentiality obligations
hereunder; provided that Investor shall be liable for any breach of such confidentiality obligations by any such person or entity.

 

(n)            Survival
of Representations and Warranties. All of the representations and warranties contained herein shall survive the consummation of the
transactions contemplated by this Agreement.

 

-the remainder of this page is intentionally
left blank-

 

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	 	Very truly yours,
	 	 
	 	INVESTOR
	 	 
	 	[______________]
	 	 	 
	 	By:	 
	 	 	Name:
	 	 	Title:

 

Accepted and Agreed:

 

	 	FOUNDERS

 

		By:	
	 	 	Name: Nimesh Patel

 

		By:	
	 	 	Name: Brian Beem

 

		By:	
	 	 	Name: Patrick Murphy

 

		By:	
	 	 	Name: Hans Mende

 

	 	AMCI Group, LLC Series 35

 

		By:	

                                                                    

	 	 	Name: Hans Mende
	 	 	Title: Authorized Signatory

 

    

    

    

 

EXHIBIT A

 

	Founder	 	Founder shares subject to 
 Investor’s right to purchase	 
	Nimesh Patel	 	 	17,165	 
	Brian Beem	 	 	17,165	 
	Patrick Murphy	 	 	10,065	 
	AMCI Group LLC, Series 35	 	 	29,855	 
	TOTAL SHARES	 	 	74,250	 

 

    A-1

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