Document:

Exhibit 10.3

 

PROMISSORY NOTE

 

	$150,000	As of April 7, 2021 

 

Accretion Acquisition Corp.
(“Maker”) promises to pay to the order of Accretion Acquisition Sponsor, LLC or its successors or assigns (“Payee”)
the principal sum of One Hundred Fifty Thousand Dollars and No Cents ($150,000) in lawful money of the United States of America, on the
terms and conditions described below. Payee can assign this Note and its rights and obligations to any affiliate of Payee in Payee’s
discretion.

 

		1.	Principal. The principal balance of this Note shall be repayable on the earlier of (i) December 31,
2021, (ii) the date on which Maker consummates an initial public offering of its securities (“IPO”) or (iii) the
date on which Maker determines to not proceed with such IPO.

 

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

 

		3.	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 attorneys’ fees, and finally to the
reduction of the unpaid principal balance of this Note.

 

		4.	Events of Default. The following shall constitute Events of Default:

 

		a.	Failure to Make Required Payments. Failure by Maker to pay the principal of this Note within five
(5) business days following the date when due.

 

		b.	Voluntary Bankruptcy, Etc. The commencement by Maker of a voluntary case under the Federal
Bankruptcy Code, as now constituted or hereafter amended, or any other applicable federal or state 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 the Federal Bankruptcy Code, as now or hereafter constituted, or any
other applicable federal or state 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.

 

		5.	Remedies.

 

		a.	Upon the occurrence of an Event of Default specified in Section 4(a), Payee may, by written notice
to Maker, declare this Note to be due and payable, whereupon the principal amount of this Note, and all other amounts payable thereunder,
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.

 

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		b.	Upon the occurrence of an Event of Default specified in Sections 4(b) and 4(c), the unpaid principal
balance of, 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.

 

		6.	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 this 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, on any writ of
execution issued hereon, may be sold upon any such writ in whole or in part in any order desired by Payee.

 

		7.	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 them or affecting their liability hereunder.

 

		8.	Notices. Any notice called for hereunder shall be deemed properly given if (i) sent by certified
mail, return receipt requested, (ii) personally delivered, (iii) dispatched by any form of private or governmental express mail
or delivery service providing receipted delivery, (iv) sent by telefacsimile or (v) sent by e-mail, to the following addresses
or to such other address as either party may designate by notice in accordance with this Section:

 

If to Maker:

 

Accretion Acquisition Corp.

410 17th Street, #1110

Denver, Colorado 80202

 

If to Payee:

 

Accretion Acquisition Sponsor, LLC

410 17th Street, #1110

Denver, Colorado 80202

 

Notice shall be deemed given on the
earlier of (i) actual receipt by the receiving party, (ii) the date shown on a telefacsimile transmission confirmation, (iii) the
date on which an e-mail transmission was received by the receiving party’s on-line access provider (iv) the date reflected
on a signed delivery receipt, or (v) two (2) business days following tender of delivery or dispatch by express mail or delivery
service.

 

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		9.	Construction. This Note shall be construed and enforced in accordance with the domestic, internal
law, but not the law of conflict of laws, of the State of New York.

 

		10.	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.

 

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

 

	 	ACCRETION ACQUISITION CORP.
	 	 	 
	 	By:	/s/ Brad Morse
	 	Name:	Brad Morse
	 	Title:	Chief Executive Officer

 

    3Exhibit 10.4

 

REGISTRATION RIGHTS AGREEMENT

 

THIS REGISTRATION RIGHTS AGREEMENT
(this “Agreement”) is entered into as of [●], 2021, by and among Accretion Acquisition Corp., a Delaware
corporation (the “Company”), and the undersigned parties listed under Investors on the signature page hereto
(each, an “Investor” and collectively, the “Investors”).

 

WHEREAS, the Investors and
the Company desire to enter into this Agreement to provide the Investors with certain rights relating to the registration of the securities
held by them as of the date hereof or that may be held by them upon consummation of a Business Combination (defined below);

 

NOW, THEREFORE, in consideration
of the mutual covenants and agreements set forth herein, and for other good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, the parties hereto agree as follows:

 

1.            DEFINITIONS.
The following capitalized terms used herein have the following meanings:

 

“Agreement”
means this Agreement, as amended, restated, supplemented, or otherwise modified from time to time.

 

“Business Combination”
means the acquisition of direct or indirect ownership through a merger, stock exchange, asset acquisition, stock purchase, recapitalization,
reorganization or other similar type of transaction, of one or more businesses or entities.

 

“Commission”
means the Securities and Exchange Commission, or any other federal agency then administering the Securities Act or the Exchange Act.

 

“Common Stock”
means the common stock, par value $0.001 per share, of the Company.

 

“Company”
is defined in the preamble to this Agreement.

 

“Demand Registration”
is defined in Section 2.1.1.

 

“Demanding Holder”
is defined in Section 2.1.1.

 

“EarlyBird”
means EarlyBirdCapital, Inc.

 

“EBC Founder Shares”
means the 100,000 shares of Common Stock of the Company issued to EarlyBird prior to the Company’s initial public offering.

 

“Exchange Act”
means the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission promulgated thereunder, all
as the same shall be in effect at the time.

 

“Form S-3”
is defined in Section 2.3.

 

     

     

    

 

“Founder Shares”
means the 4,312,500 shares of Common Stock of the Company issued to its initial stockholders prior to the Company’s initial public
offering.

 

“Indemnified Party”
is defined in Section 4.3.

 

“Indemnifying
Party” is defined in Section 4.3.

 

“Investor”
is defined in the preamble to this Agreement.

 

“Investor Indemnified
Party” is defined in Section 4.1.

 

“Maximum Number
of Shares” is defined in Section 2.1.4.

 

“Notices”
is defined in Section 6.3.

 

“Piggy-Back Registration”
is defined in Section 2.2.1.

 

“Private Warrants”
means the Warrants certain of the Investors are privately purchasing simultaneously with the consummation of the Company’s initial
public offering.

 

“Pro Rata”
is defined in Section 2.1.4.

 

“Register”,
 “Registered” and “Registration” mean a registration effected by preparing and filing
a registration statement or similar document in compliance with the requirements of the Securities Act, and the applicable rules and
regulations promulgated thereunder, and such registration statement becoming effective.

 

“Registrable Securities”
means (i) the Founder Shares, (ii) the Private Warrants (and underlying Common Stock), (iii) the Working Capital Warrants
(and underlying Common Stock), if any, and (iv) the EBC Founder Shares. Registrable Securities include any warrants, shares of capital
stock or other securities of the Company issued as a dividend or other distribution with respect to or in exchange for or in replacement
of such Registrable Securities. As to any particular Registrable Securities, such securities shall cease to be Registrable Securities
when: (a) a Registration Statement with respect to the sale of such securities shall have become effective under the Securities Act
and such securities shall have been sold, transferred, disposed of or exchanged in accordance with such Registration Statement; (b) such
securities shall have been otherwise transferred, new certificates for them not bearing a legend restricting further transfer shall have
been delivered by the Company, and subsequent public distribution of them shall not require registration under the Securities Act; (c) such
securities shall have ceased to be outstanding, or (d) the Registrable Securities are freely saleable under Rule 144 under the
Securities Act without volume limitations.

 

“Registration
Statement” means a registration statement filed by the Company with the Commission in compliance with the Securities Act
and the rules and regulations promulgated thereunder for a public offering and sale of equity securities, or securities or other
obligations exercisable or exchangeable for, or convertible into, equity securities (other than a registration statement on Form S-4
or Form S-8, or their successors, or any registration statement covering only securities proposed to be issued in exchange for securities
or assets of another entity).

 

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“Release Date”
means the date on which the Founder Shares are disbursed from escrow pursuant to Section 3 of that certain Stock Escrow Agreement
dated on or about the date hereof by and among the holders of Founder Shares and Continental Stock Transfer & Trust Company.

 

“Securities Act”
means the Securities Act of 1933, as amended, and the rules and regulations of the Commission promulgated thereunder, all as the
same shall be in effect at the time.

 

“Underwriter”
means a securities dealer who purchases any Registrable Securities as principal in an underwritten offering and not as part of such dealer’s
market-making activities.

 

“Warrants”
means the warrants of the Company, each whole warrant entitling the holder to purchase one share of Common Stock at a price of $11.50
per share.

 

“Working Capital
Warrants” means any Warrants held by Investors, officers or directors of the Company or their affiliates which may be issued
in payment of working capital loans made to the Company.

 

2.            REGISTRATION
RIGHTS.

 

2.1            Demand
Registration.

 

 2.1.1            Request
for Registration. At any time and from time to time on or after (i) the date that is three months prior to the Release Date with
respect to the Founder Shares or (ii) the date that the Company consummates a Business Combination with respect to all other Registrable
Securities, the holders of a majority-in-interest of such Founder Shares, Private Warrants (or underlying securities), Working Capital
Warrants (or underlying Common Stock). EBC Founder Shares or other Registrable Securities, as the case may be, held by the Investors,
officers or directors of the Company or their affiliates or EarlyBird, or the transferees of the Investors, may make a written demand
for registration under the Securities Act of all or part of their Founder Shares, Private Warrants (or underlying securities), Working
Capital Warrants (or underlying Common Stock), EBC Founder Shares or other Registrable Securities, as the case may be (a “Demand
Registration”). Any demand for a Demand Registration shall specify the number of shares of Registrable Securities proposed
to be sold and the intended method(s) of distribution thereof. The Company will, within ten (10) days of the Company’s
receipt of the Demand Registration, notify all holders of Registrable Securities of the demand, and each holder of Registrable Securities
who wishes to include all or a portion of such holder’s Registrable Securities in the Demand Registration (each such holder including
shares of Registrable Securities in such registration, a “Demanding Holder”) shall so notify the Company within
fifteen (15) days after the receipt by the holder of the notice from the Company. Upon any such request, the Demanding Holders shall be
entitled to have their Registrable Securities included in the Demand Registration, subject to Section 2.1.4 and the provisos set
forth in Section 3.1.1. The Company shall not be obligated to effect more than an aggregate of two (2) Demand Registrations
under this Section 2.1.1 in respect of all Registrable Securities. Notwithstanding anything to the contrary in this Section 2.1.1,
EarlyBird will be entitled to request a Demand Registration on only one occasion, and only during the five-year period beginning on the
effective date of the registration statement for the Company’s initial public offering.

 

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2.1.2            Effective
Registration. A registration will not count as a Demand Registration until the Registration Statement filed with the Commission with
respect to such Demand Registration has been declared effective and the Company has complied with all of its obligations under this Agreement
with respect thereto; provided, however, that if, after such Registration Statement has been declared effective, the offering of Registrable
Securities pursuant to a Demand Registration is interfered with by any stop order or injunction of the Commission or any other governmental
agency or court, the Registration Statement with respect to such Demand Registration will be deemed not to have been declared effective,
unless and until, (i) such stop order or injunction is removed, rescinded or otherwise terminated, and (ii) a majority-in-interest
of the Demanding Holders thereafter elect to continue the offering; provided, further, that the Company shall not be obligated to file
a second Registration Statement until a Registration Statement that has been filed is counted as a Demand Registration or is terminated.

 

2.1.3          Underwritten
Offering. If a majority-in-interest of the Demanding Holders so elect and such holders so advise the Company as part of their written
demand for a Demand Registration, the offering of such Registrable Securities pursuant to such Demand Registration shall be in the form
of an underwritten offering. In such event, the right of any holder to include its Registrable Securities in such registration shall be
conditioned upon such holder’s participation in such underwriting and the inclusion of such holder’s Registrable Securities
in the underwriting to the extent provided herein. All Demanding Holders proposing to distribute their Registrable Securities through
such underwriting shall enter into an underwriting agreement in customary form with the Underwriter or Underwriters selected for such
underwriting by a majority-in-interest of the holders initiating the Demand Registration.

 

2.1.4          Reduction
of Offering. If the managing Underwriter or Underwriters for a Demand Registration that is to be an underwritten offering advises
the Company and the Demanding Holders in writing that the dollar amount or number of shares of Registrable Securities which the Demanding
Holders desire to sell, taken together with all other shares of Common Stock or other securities which the Company desires to sell and
the shares of Common Stock, if any, as to which registration has been requested pursuant to written contractual piggy-back registration
rights held by other stockholders of the Company who desire to sell, exceeds the maximum dollar amount or maximum number of shares that
can be sold in such offering without adversely affecting the proposed offering price, the timing, the distribution method, or the probability
of success of such offering (such maximum dollar amount or maximum number of shares, as applicable, the “Maximum Number of
Shares”), then the Company shall include in such registration: (i) first, the Registrable Securities as to which Demand
Registration has been requested by the Demanding Holders (pro rata in accordance with the number of shares that each such person has requested
be included in such registration, regardless of the number of shares held by each such person (such proportion is referred to herein as
 “Pro Rata”)) that can be sold without exceeding the Maximum Number of Shares; (ii) second, to the extent
that the Maximum Number of Shares has not been reached under the foregoing clause (i), the shares of Common Stock or other securities
that the Company desires to sell that can be sold without exceeding the Maximum Number of Shares; (iii) third, to the extent that
the Maximum Number of Shares has not been reached under the foregoing clauses (i) and (ii), the Registrable Securities of holders
exercising their piggy-back registration rights pursuant to Section 2.2; and (iv) fourth, to the extent that the Maximum Number
of Shares has not been reached under the foregoing clauses (i), (ii), and (iii), the shares of Common Stock or other securities for the
account of other persons that the Company is obligated to register pursuant to written contractual arrangements with such persons and
that can be sold without exceeding the Maximum Number of Shares.

 

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2.1.5            Withdrawal.
If a majority-in-interest of the Demanding Holders disapprove of the terms of any underwriting or are not entitled to include all of their
Registrable Securities in any offering, such majority-in-interest of the Demanding Holders may elect to withdraw from such offering by
giving written notice to the Company and the Underwriter or Underwriters of their request to withdraw prior to the effectiveness of the
Registration Statement filed with the Commission with respect to such Demand Registration. If the majority-in-interest of the Demanding
Holders withdraws from a proposed offering relating to a Demand Registration, then such registration shall not count as a Demand Registration
provided for in Section 2.1.

 

2.2            Piggy-Back
Registration.

 

 2.2.1            Piggy-Back
Rights. If at any time on or after the date the Company consummates a Business Combination the Company proposes to file a Registration
Statement under the Securities Act with respect to an offering of equity securities, or securities or other obligations exercisable or
exchangeable for, or convertible into, equity securities, by the Company for its own account or for shareholders of the Company for their
account (or by the Company and by shareholders of the Company including, without limitation, pursuant to Section 2.1), other than
a Registration Statement (i) filed in connection with any employee stock option or other benefit plan, (ii) for an exchange
offer or offering of securities solely to the Company’s existing shareholders, (iii) for an offering of debt that is convertible
into equity securities of the Company or (iv) for a dividend reinvestment plan, then the Company shall (x) give written notice
of such proposed filing to the holders of Registrable Securities as soon as practicable but in no event less than ten (10) days before
the anticipated filing date, which notice shall describe the amount and type of securities to be included in such offering, the intended
method(s) of distribution, and the name of the proposed managing Underwriter or Underwriters, if any, of the offering, and (y) offer
to the holders of Registrable Securities in such notice the opportunity to register the sale of such number of shares of Registrable Securities
as such holders may request in writing within five (5) days following receipt of such notice (a “Piggy-Back Registration”).
The Company shall cause such Registrable Securities to be included in such registration and shall use its best efforts to cause the managing
Underwriter or Underwriters of a proposed underwritten offering to permit the Registrable Securities requested to be included in a Piggy-Back
Registration on the same terms and conditions as any similar securities of the Company and to permit the sale or other disposition of
such Registrable Securities in accordance with the intended method(s) of distribution thereof. All holders of Registrable Securities
proposing to distribute their securities through a Piggy-Back Registration that involves an Underwriter or Underwriters shall enter into
an underwriting agreement in customary form with the Underwriter or Underwriters selected for such Piggy-Back Registration.

 

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2.2.2            Reduction
of Offering. If the managing Underwriter or Underwriters for a Piggy-Back Registration that is to be an underwritten offering advises
the Company and the holders of Registrable Securities in writing that the dollar amount or number of shares of Common Stock which the
Company desires to sell, taken together with shares of Common Stock, if any, as to which registration has been demanded pursuant to separate
written contractual arrangements with persons or entities other than the holders of Registrable Securities hereunder, the Registrable
Securities as to which registration has been requested under this Section 2.2, and the shares of Common Stock, if any, as to which
registration has been requested pursuant to the written contractual piggy-back registration rights of other stockholders of the Company,
exceeds the Maximum Number of Shares, then the Company shall include in any such registration:

 

    (a)            If
the registration is undertaken for the Company’s account: (A) the shares of Common Stock or other securities that the Company
desires to sell that can be sold without exceeding the Maximum Number of Shares; (B) to the extent that the Maximum Number of Shares
has not been reached under the foregoing clause (A), the shares of Common Stock or other securities, if any, comprised of Registrable
Securities, as to which registration has been requested pursuant to the applicable written contractual piggy-back registration rights
of such security holders, Pro Rata, that can be sold without exceeding the Maximum Number of Shares; and (C) to the extent that the
Maximum Number of Shares has not been reached under the foregoing clauses (A) and (B), the shares of Common Stock or other securities
for the account of other persons that the Company is obligated to register pursuant to written contractual piggy-back registration rights
with such persons and that can be sold without exceeding the Maximum Number of Shares; and

 

    (b)            If
the registration is a “demand” registration undertaken at the demand of persons other than either the holders of Registrable
Securities, (A) first, the shares of Common Stock or other securities for the account of the demanding persons that can be sold without
exceeding the Maximum Number of Shares; (B) second, to the extent that the Maximum Number of Shares has not been reached under the
foregoing clause (A), the shares of Common Stock or other securities that the Company desires to sell that can be sold without exceeding
the Maximum Number of Shares; (C) third, to the extent that the Maximum Number of Shares has not been reached under the foregoing
clauses (A) and (B), collectively, the shares of Common Stock or other securities comprised of Registrable Securities, Pro Rata,
as to which registration has been requested pursuant to the terms hereof, that can be sold without exceeding the Maximum Number of Shares;
and (D) fourth, to the extent that the Maximum Number of Shares has not been reached under the foregoing clauses (A), (B) and
(C), the shares of Common Stock or other securities for the account of other persons that the Company is obligated to register pursuant
to written contractual arrangements with such persons, that can be sold without exceeding the Maximum Number of Shares.

 

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2.2.3         Withdrawal.
Any holder of Registrable Securities may elect to withdraw such holder’s request for inclusion of Registrable Securities in any
Piggy-Back Registration by giving written notice to the Company of such request to withdraw prior to the effectiveness of the Registration
Statement. The Company (whether on its own determination or as the result of a withdrawal by persons making a demand pursuant to written
contractual obligations) may withdraw a Registration Statement at any time prior to the effectiveness of such Registration Statement.
Notwithstanding any such withdrawal, the Company shall pay all expenses incurred by the holders of Registrable Securities in connection
with such Piggy-Back Registration as provided in Section 3.3.

 

2.2.4            Unlimited
Piggy-Back Registration Rights. For the avoidance of doubt, any registration effected pursuant to Section 2.2 hereof shall not
be counted as a registration pursuant to a Demand Registration effected pursuant to Section 2.1 hereof. The holders of Registrable
Securities may participate in an unlimited number of Piggy-Back Registrations. Anything to the contrary set forth herein notwithstanding,
EarlyBird may participate in a Piggy-Back Registration only during the seven-year period beginning on the effective date of the registration
statement for the Company’s initial public offering.

 

2.3            Registrations
on Form S-3. The holders of Registrable Securities may at any time and from time to time request in writing that the Company
register the resale of any or all of such Registrable Securities on Form S-3 or any similar short-form registration which may be
available at such time (“Form S-3”); provided, however, that the Company shall not be obligated to effect
such request through an underwritten offering. Upon receipt of such written request, the Company will promptly give written notice of
the proposed registration to all other holders of Registrable Securities, and each holder of Registrable Securities who thereafter wishes
to include all or a portion of such holder’s Registrable Securities in such registration shall notify the Company in writing within
fifteen (15) days after the receipt by the holder of the notice from the Company and, as soon as practicable thereafter, the Company shall
effect the registration of all or such portion of such holder’s or holders’ Registrable Securities as are specified in such
request, together with all or such portion of the Registrable Securities or other securities of the Company, if any, of any other holder
or holders joining in such request; provided, however, that the Company shall not be obligated to effect any such registration pursuant
to this Section 2.3: (i) if Form S-3 is not available for such offering; or (ii) if the holders of the Registrable
Securities, together with the holders of any other securities of the Company entitled to inclusion in such registration, propose to sell
Registrable Securities and such other securities (if any) at any aggregate price to the public of less than $500,000. Registrations effected
pursuant to this Section 2.3 shall not be counted as Demand Registrations effected pursuant to Section 2.1.

 

3.            REGISTRATION
PROCEDURES.

 

3.1            Filings;
Information. Whenever the Company is required to effect the registration of any Registrable Securities pursuant to Section 2,
the Company shall use its best efforts to effect the registration and sale of such Registrable Securities in accordance with the intended
method(s) of distribution thereof as expeditiously as practicable, and in connection with any such request:

 

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3.1.1           Filing
Registration Statement. The Company shall use its best efforts to, as expeditiously as possible after receipt of a request for a Demand
Registration pursuant to Section 2.1, prepare and file with the Commission a Registration Statement on any form for which the Company
then qualifies or which counsel for the Company shall deem appropriate and which form shall be available for the sale of all Registrable
Securities to be registered thereunder in accordance with the intended method(s) of distribution thereof, and shall use its best
efforts to cause such Registration Statement to become effective and use its best efforts to keep it effective for the period required
by Section 3.1.3; provided, however, that the Company shall have the right to defer any Demand Registration for up to thirty (30)
days, and any Piggy-Back Registration for such period as may be applicable to deferment of any demand registration to which such Piggy-Back
Registration relates, in each case if the Company shall furnish to the holders a certificate signed by the Chief Executive Officer, President
or Chairman of the Company stating that, in the good faith judgment of the Board of Directors of the Company, it would be materially detrimental
to the Company and its shareholders for such Registration Statement to be effected at such time; provided further, however, that the Company
shall not have the right to exercise the right set forth in the immediately preceding proviso more than once in any 365-day period in
respect of a Demand Registration hereunder.

 

3.1.2           Copies.
The Company shall, prior to filing a Registration Statement or prospectus, or any amendment or supplement thereto, furnish without charge
to the holders of Registrable Securities included in such registration, and such holders’ legal counsel, copies of such Registration
Statement as proposed to be filed, each amendment and supplement to such Registration Statement (in each case including all exhibits thereto
and documents incorporated by reference therein), the prospectus included in such Registration Statement (including each preliminary prospectus),
and such other documents as the holders of Registrable Securities included in such registration or legal counsel for any such holders
may request in order to facilitate the disposition of the Registrable Securities owned by such holders.

 

3.1.3            Amendments
and Supplements. The Company shall prepare and file with the Commission such amendments, including post-effective amendments, and
supplements to such Registration Statement and the prospectus used in connection therewith as may be necessary to keep such Registration
Statement effective and in compliance with the provisions of the Securities Act until all Registrable Securities and other securities
covered by such Registration Statement have been disposed of in accordance with the intended method(s) of distribution set forth
in such Registration Statement or such securities have been withdrawn.

 

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3.1.4            Notification.
After the filing of a Registration Statement, the Company shall promptly, and in no event more than two (2) business days after such
filing, notify the holders of Registrable Securities included in such Registration Statement of such filing, and shall further notify
such holders promptly and confirm such advice in writing in all events within two (2) business days of the occurrence of any of the
following: (i) when such Registration Statement becomes effective; (ii) when any post-effective amendment to such Registration
Statement becomes effective; (iii) the issuance or threatened issuance by the Commission of any stop order (and the Company shall
take all commercially reasonable actions required to prevent the entry of such stop order or to remove it if entered); and (iv) any
request by the Commission for any amendment or supplement to such Registration Statement or any prospectus relating thereto or of the
occurrence of an event requiring the preparation of a supplement or amendment to such prospectus so that, as thereafter delivered to the
purchasers of the securities covered by such Registration Statement, such prospectus will not contain an untrue statement of a material
fact or omit to state any material fact required to be stated therein or necessary to make the statements therein not misleading, and
promptly make available to the holders of Registrable Securities included in such Registration Statement any such supplement or amendment;
except that before filing with the Commission a Registration Statement or prospectus or any amendment or supplement thereto, excluding
documents incorporated by reference, the Company shall furnish to the holders of Registrable Securities included in such Registration
Statement and to the legal counsel for any such holders, copies of all such documents proposed to be filed sufficiently in advance of
filing to provide such holders and legal counsel with a reasonable opportunity to review such documents and comment thereon, and the Company
shall not file any Registration Statement or prospectus or amendment or supplement thereto, excluding documents incorporated by reference,
to which such holders or their legal counsel shall object.

 

3.1.5          State
Securities Laws Compliance. The Company shall use its best efforts to (i) register or qualify the Registrable Securities covered
by the Registration Statement under such securities or “blue sky” laws of such jurisdictions in the United States as the holders
of Registrable Securities included in such Registration Statement (in light of their intended plan of distribution) may reasonably request
and (ii) take such action necessary to cause such Registrable Securities covered by the Registration Statement to be registered with
or approved by such other governmental authorities as may be necessary by virtue of the business and operations of the Company and use
commercially reasonable efforts to do any and all other acts and things that may be necessary or advisable to enable the holders of Registrable
Securities included in such Registration Statement to consummate the disposition of such Registrable Securities in such jurisdictions;
provided, however, that the Company shall not be required to qualify generally to do business in any jurisdiction where it would not otherwise
be required to qualify but for this paragraph or subject itself to taxation in any such jurisdiction.

 

3.1.6         Agreements
for Disposition. The Company shall enter into customary agreements (including, if applicable, an underwriting agreement in customary
form) and take such other actions as are reasonably required in order to expedite or facilitate the disposition of such Registrable Securities.
No holder of Registrable Securities included in such registration statement shall be required to make any representations or warranties
in the underwriting agreement except, if applicable, with respect to such holder’s organization, good standing, authority, title
to Registrable Securities, lack of conflict of such sale with such holder’s material agreements and organizational documents, and
with respect to written information relating to such holder that such holder has furnished in writing expressly for inclusion in such
Registration Statement.

 

    9

     

    

 

3.1.7         Cooperation.
The principal executive officer of the Company, the principal financial officer of the Company, the principal accounting officer of the
Company and all other officers and members of the management of the Company shall cooperate reasonably in any offering of Registrable
Securities hereunder, which cooperation shall include, without limitation, the preparation of the Registration Statement with respect
to such offering and all other offering materials and related documents, and participation in meetings with Underwriters, attorneys, accountants
and potential investors.

 

3.1.8          Earnings
Statement. The Company shall comply with all applicable rules and regulations of the Commission and the Securities Act, and make
available to its shareholders, within four months following the end of its fiscal year, an earnings statement covering a period of twelve
(12) months, which earnings statement shall satisfy the provisions of Section 11(a) of the Securities Act and Rule 158
thereunder.

 

3.1.9            Listing.
The Company shall use its best efforts to cause all Registrable Securities included in any registration to be listed on such exchanges
or otherwise designated for trading in the same manner as similar securities issued by the Company are then listed or designated or, if
no such similar securities are then listed or designated, in a manner satisfactory to the holders of a majority of the Registrable Securities
included in such registration.

 

3.1.10          Road
Show. If the registration involves the registration of Registrable Securities involving gross proceeds in excess of $25,000,000, the
Company shall use its reasonable efforts to make available senior executives of the Company to participate in customary “road show”
presentations that may be reasonably requested by the Underwriter in any underwritten offering.

 

3.2            Obligation
to Suspend Distribution. Upon receipt of any notice from the Company of the happening of any event of the kind described in Section 3.1.4(iv),
each holder of Registrable Securities included in any registration shall immediately discontinue disposition of such Registrable Securities
pursuant to the Registration Statement covering such Registrable Securities until such holder receives the supplemented or amended prospectus
contemplated by Section 3.1.4(iv), and, if so directed by the Company, each such holder will deliver to the Company all written copies,
other than permanent file copies then in such holder’s possession, of the most recent prospectus covering such Registrable Securities
at the time of receipt of such notice.

 

3.3            Registration
Expenses. The Company shall bear all costs and expenses incurred in connection with any Demand Registration pursuant to Section 2.1,
any Piggy-Back Registration pursuant to Section 2.2, and any registration on Form S-3 effected pursuant to Section 2.3,
and all expenses incurred in performing or complying with its other obligations under this Agreement, whether or not the Registration
Statement becomes effective, including, without limitation: (i) all registration and filing fees and fees of any securities exchange
on which the Common Stock is then listed; (ii) fees and expenses of compliance with securities or “blue sky” laws (including
fees and disbursements of counsel in connection with blue sky qualifications of the Registrable Securities); (iii) printing expenses;
(iv) the Company’s internal expenses (including, without limitation, all salaries and expenses of its officers and employees);
(v) the fees and expenses incurred in connection with the listing of the Registrable Securities as required by Section 3.1.9;
(vi) Financial Industry Regulatory Authority fees; (vii) fees and disbursements of counsel for the Company and fees and expenses
for independent certified public accountants retained by the Company; (viii) the fees and expenses of any special experts retained
by the Company in connection with such registration; and (ix) the fees and expenses of one legal counsel selected by the holders
of a majority-in-interest of the Registrable Securities included in such registration. The Company shall have no obligation to pay any
underwriting discounts or selling commissions attributable to the Registrable Securities being sold by the holders thereof, which underwriting
discounts or selling commissions shall be borne by such holders. Additionally, in an underwritten offering, all selling shareholders and
the Company shall bear the expenses of the Underwriter pro rata in proportion to the respective amount of shares each is selling in such
offering.

 

    10

     

    

 

3.4            Information.
The holders of Registrable Securities shall provide such information as may reasonably be requested by the Company, or the managing Underwriter,
if any, in connection with the preparation of any Registration Statement, including amendments and supplements thereto, in order to effect
the registration of any Registrable Securities under the Securities Act pursuant to Section 2 and in connection with the Company’s
obligation to comply with federal and applicable state securities laws.

 

4.            INDEMNIFICATION
AND CONTRIBUTION.

 

4.1          Indemnification
by the Company. The Company agrees to indemnify and hold harmless each Investor and each other holder of Registrable Securities, and
each of their respective officers, employees, affiliates, directors, partners, members, attorneys and agents, and each person, if any,
who controls an Investor and each other holder of Registrable Securities (within the meaning of Section 15 of the Securities Act
or Section 20 of the Exchange Act) (each, an “Investor Indemnified Party”), from and against any expenses,
losses, judgments, claims, damages or liabilities, whether joint or several, arising out of or based upon any untrue statement (or allegedly
untrue statement) of a material fact contained in any Registration Statement under which the sale of such Registrable Securities was registered
under the Securities Act, any preliminary prospectus, final prospectus or summary prospectus contained in the Registration Statement,
or any amendment or supplement to such Registration Statement, or arising out of or based upon any omission (or alleged omission) to state
a material fact required to be stated therein or necessary to make the statements therein not misleading, or any violation by the Company
of the Securities Act or any rule or regulation promulgated thereunder applicable to the Company and relating to action or inaction
required of the Company in connection with any such registration; and the Company shall promptly reimburse the Investor Indemnified Party
for any legal and any other expenses reasonably incurred by such Investor Indemnified Party in connection with investigating and defending
any such expense, loss, judgment, claim, damage, liability or action whether or not any such person is a party to any such claim or action
and including any and all legal and other expenses incurred in giving testimony or furnishing documents in response to a subpoena or otherwise;
provided, however, that the Company will not be liable in any such case to the extent that any such expense, loss, claim, damage or liability
arises out of or is based upon any untrue statement or allegedly untrue statement or omission or alleged omission made in such Registration
Statement, preliminary prospectus, final prospectus, or summary prospectus, or any such amendment or supplement, in reliance upon and
in conformity with information furnished to the Company, in writing, by such selling holder expressly for use therein. The Company also
shall indemnify any Underwriter of the Registrable Securities, their officers, affiliates, directors, partners, members and agents and
each person who controls such Underwriter on substantially the same basis as that of the indemnification provided above in this Section 4.1.

 

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4.2            Indemnification
by Holders of Registrable Securities. Subject to the limitations set forth in Section 4.4.3 hereof, each selling holder of Registrable
Securities will, in the event that any registration is being effected under the Securities Act pursuant to this Agreement of any Registrable
Securities held by such selling holder, indemnify and hold harmless the Company, each of its directors and officers and each Underwriter
(if any), and each other selling holder and each other person, if any, who controls the Company, another selling holder or such Underwriter
within the meaning of the Securities Act, against any losses, claims, judgments, damages or liabilities, whether joint or several, insofar
as such losses, claims, judgments, damages or liabilities (or actions in respect thereof) arise out of or are based upon any untrue statement
or allegedly untrue statement of a material fact contained in any Registration Statement under which the sale of such Registrable Securities
was registered under the Securities Act, any preliminary prospectus, final prospectus or summary prospectus contained in the Registration
Statement, or any amendment or supplement to the Registration Statement, or arise out of or are based upon any omission or the alleged
omission to state a material fact required to be stated therein or necessary to make the statement therein not misleading, if the statement
or omission was made in reliance upon and in conformity with information furnished in writing to the Company by such selling holder expressly
for use therein, and shall reimburse the Company, its directors and officers, and each other selling holder or controlling person for
any legal or other expenses reasonably incurred by any of them in connection with investigation or defending any such loss, claim, damage,
liability or action. Each selling holder’s indemnification obligations hereunder shall be several and not joint and shall be limited
to the amount of any net proceeds actually received by such selling holder.

 

4.3            Conduct
of Indemnification Proceedings. Promptly after receipt by any person of any notice of any loss, claim, damage or liability or any
action in respect of which indemnity may be sought pursuant to Section 4.1 or 4.2, such person (the “Indemnified Party”)
shall, if a claim in respect thereof is to be made against any other person for indemnification hereunder, notify such other person (the
 “Indemnifying Party”) in writing of the loss, claim, judgment, damage, liability or action; provided, however,
that the failure by the Indemnified Party to notify the Indemnifying Party shall not relieve the Indemnifying Party from any liability
which the Indemnifying Party may have to such Indemnified Party hereunder, except and solely to the extent the Indemnifying Party is actually
prejudiced by such failure. If the Indemnified Party is seeking indemnification with respect to any claim or action brought against the
Indemnified Party, then the Indemnifying Party shall be entitled to participate in such claim or action, and, to the extent that it wishes,
jointly with all other Indemnifying Parties, to assume control of the defense thereof with counsel satisfactory to the Indemnified Party.
After notice from the Indemnifying Party to the Indemnified Party of its election to assume control of the defense of such claim or action,
the Indemnifying Party shall not be liable to the Indemnified Party for any legal or other expenses subsequently incurred by the Indemnified
Party in connection with the defense thereof other than reasonable costs of investigation; provided, however, that in any action in which
both the Indemnified Party and the Indemnifying Party are named as defendants, the Indemnified Party shall have the right to employ separate
counsel (but no more than one such separate counsel) to represent the Indemnified Party and its controlling persons who may be subject
to liability arising out of any claim in respect of which indemnity may be sought by the Indemnified Party against the Indemnifying Party,
with the fees and expenses of such counsel to be paid by such Indemnifying Party if, based upon the written advice of counsel of such
Indemnified Party, representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests
between them. No Indemnifying Party shall, without the prior written consent of the Indemnified Party, which shall not be unreasonably
withheld or delayed, consent to entry of judgment or effect any settlement of any claim or pending or threatened proceeding in respect
of which the Indemnified Party is or could have been a party and indemnity could have been sought hereunder by such Indemnified Party,
unless such judgment or settlement includes an unconditional release of such Indemnified Party from all liability arising out of such
claim or proceeding.

 

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4.4            Contribution.

 

4.4.1            If
the indemnification provided for in the foregoing Sections 4.1, 4.2 and 4.3 is unavailable to any Indemnified Party in respect of any
loss, claim, damage, liability or action referred to herein, then each such Indemnifying Party, in lieu of indemnifying such Indemnified
Party, shall contribute to the amount paid or payable by such Indemnified Party as a result of such loss, claim, damage, liability or
action in such proportion as is appropriate to reflect the relative fault of the Indemnified Parties and the Indemnifying Parties in connection
with the actions or omissions which resulted in such loss, claim, damage, liability or action, as well as any other relevant equitable
considerations. The relative fault of any Indemnified Party and any Indemnifying Party shall be determined by reference to, among other
things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact
relates to information supplied by such Indemnified Party or such Indemnifying Party and the parties’ relative intent, knowledge,
access to information and opportunity to correct or prevent such statement or omission.

 

4.4.2        The
parties hereto agree that it would not be just and equitable if contribution pursuant to this Section 4.4 were determined by pro
rata allocation or by any other method of allocation which does not take account of the equitable considerations referred to in the immediately
preceding Section 4.4.1.

 

4.4.3            The
amount paid or payable by an Indemnified Party as a result of any loss, claim, damage, liability or action referred to in the immediately
preceding paragraph shall be deemed to include, subject to the limitations set forth above, any legal or other expenses incurred by such
Indemnified Party in connection with investigating or defending any such action or claim. Notwithstanding the provisions of this Section 4.4,
no holder of Registrable Securities shall be required to contribute any amount in excess of the dollar amount of the net proceeds (after
payment of any underwriting fees, discounts, commissions or taxes) actually received by such holder from the sale of Registrable Securities
which gave rise to such contribution obligation. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of
the Securities Act) with respect to any action shall be entitled to contribution in such action from any person who was not guilty of
such fraudulent misrepresentation.

 

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5.            UNDERWRITING
AND DISTRIBUTION.

 

5.1            Rule 144.
The Company covenants that it shall file any reports required to be filed by it under the Securities Act and the Exchange Act and shall
take such further action as the holders of Registrable Securities may reasonably request, all to the extent required from time to time
to enable such holders to sell Registrable Securities without registration under the Securities Act within the limitation of the exemptions
provided by Rule 144 under the Securities Act, as such Rules may be amended from time to time, or any similar rule or regulation
hereafter adopted by the Commission.

 

6.            MISCELLANEOUS.

 

6.1         Other
Registration Rights. The Company represents and warrants that no person, other than the holders of the Registrable Securities, has
any right to require the Company to register any shares of the Company’s capital stock for sale or to include shares of the Company’s
capital stock in any registration filed by the Company for the sale of shares of capital stock for its own account or for the account
of any other person.

 

6.2           Assignment;
No Third Party Beneficiaries. This Agreement and the rights, duties and obligations of the Company hereunder may not be assigned or
delegated by the Company in whole or in part, except in connection with a Business Combination and with the consent of each Investor party
hereto. This Agreement and the rights, duties and obligations of the holders of Registrable Securities hereunder may be freely assigned
or delegated by such holder of Registrable Securities in conjunction with and to the extent of any transfer of Registrable Securities
by any such holder; provided, however, that any such assignment shall be effective only upon notice being provided to the Company together
with the assignee’s written agreement to be subject to the terms hereof.

 

6.3         This
Agreement and the provisions hereof shall be binding upon and shall inure to the benefit of each of the parties, to the permitted assigns
of the Investors or holder of Registrable Securities or of any assignee of the Investors or holder of Registrable Securities. This Agreement
is not intended to confer any rights or benefits on any persons that are not party hereto other than as expressly set forth in Article 4
and this Section 6.3.

 

6.4         Notices.
All notices, demands, requests, consents, approvals or other communications (collectively, “Notices”) required
or permitted to be given hereunder or which are given with respect to this Agreement shall be in writing and shall be personally served,
delivered by reputable air courier service with charges prepaid, or transmitted by hand delivery, telegram, telex or facsimile, addressed
as set forth below, or to such other address as such party shall have specified most recently by written notice. Notice shall be deemed
given on the date of service or transmission if personally served or transmitted by telegram, telex or facsimile; provided, that if such
service or transmission is not on a business day or is after normal business hours, then such notice shall be deemed given on the next
business day. Notice otherwise sent as provided herein shall be deemed given on the next business day following timely delivery of such
notice to a reputable air courier service with an order for next-day delivery.

 

    14

     

    

 

To the Company:

 

Accretion Acquisition Corp.

410 17th Street, #1110

Denver, Colorado 80202

Attn: Brad Morse

E-mail: Brad@fulcrumef.com

 

with a copy to:

 

Davis Graham & Stubbs LLP

1550 17th Street, Suite 500

Denver, Colorado 80202

Attn: John Elofson

Sam Seiberling

Sam Niebrugge

E-mail:
John.Elofson@dgslaw.com

Sam.Seiberling@dgslaw.com

Sam.Niebrugge@dgslaw.com

 

To an Investor, to the address set forth
below such Investor’s name on Exhibit A hereto.

 

6.5           Severability.
This Agreement shall be deemed severable, and the invalidity or unenforceability of any term or provision hereof shall not affect the
validity or enforceability of this Agreement or of any other term or provision hereof. Furthermore, in lieu of any such invalid or unenforceable
term or provision, the parties hereto intend that there shall be added as a part of this Agreement a provision as similar in terms to
such invalid or unenforceable provision as may be possible that is valid and enforceable.

 

6.6          Counterparts.
This Agreement may be executed in multiple counterparts, each of which shall be deemed an original, and all of which taken together shall
constitute one and the same instrument. Delivery of a signed counterpart of this Agreement by facsimile or email/pdf transmission shall
constitute valid and sufficient delivery thereof.

 

6.7          Entire
Agreement. This Agreement (including all agreements entered into pursuant hereto and all certificates and instruments delivered pursuant
hereto and thereto) constitute the entire agreement of the parties with respect to the subject matter hereof and supersede all prior and
contemporaneous agreements, representations, understandings, negotiations and discussions between the parties, whether oral or written.

 

6.8          Modifications
and Amendments. No amendment, modification or termination of this Agreement shall be binding upon any party unless executed in writing
by such party.

 

6.9          Titles
and Headings. Titles and headings of sections of this Agreement are for convenience only and shall not affect the construction of
any provision of this Agreement.

 

    15

     

    

 

6.10         Waivers
and Extensions. Any party to this Agreement may waive any right, breach or default which such party has the right to waive, provided
that such waiver will not be effective against the waiving party unless it is in writing, is signed by such party, and specifically refers
to this Agreement. Waivers may be made in advance or after the right waived has arisen or the breach or default waived has occurred. Any
waiver may be conditional. No waiver of any breach of any agreement or provision herein contained shall be deemed a waiver of any preceding
or succeeding breach thereof nor of any other agreement or provision herein contained. No waiver or extension of time for performance
of any obligations or acts shall be deemed a waiver or extension of the time for performance of any other obligations or acts.

 

6.11         Remedies
Cumulative. In the event that the Company fails to observe or perform any covenant or agreement to be observed or performed under
this Agreement, the Investor or any other holder of Registrable Securities may proceed to protect and enforce its rights by suit in equity
or action at law, whether for specific performance of any term contained in this Agreement or for an injunction against the breach of
any such term or in aid of the exercise of any power granted in this Agreement or to enforce any other legal or equitable right, or to
take any one or more of such actions, without being required to post a bond. None of the rights, powers or remedies conferred under this
Agreement shall be mutually exclusive, and each such right, power or remedy shall be cumulative and in addition to any other right, power
or remedy, whether conferred by this Agreement or now or hereafter available at law, in equity, by statute or otherwise.

 

6.12          Governing
Law. This Agreement shall be governed by, interpreted under, and construed in accordance with the internal laws of the State of New
York applicable to agreements made and to be performed within the State of New York, without giving effect to any choice-of-law provisions
thereof that would compel the application of the substantive laws of any other jurisdiction. The Company irrevocably submits to the nonexclusive
jurisdiction of any New York State or United States Federal court sitting in The City of New York, Borough of Manhattan, over any suit,
action or proceeding arising out of or relating to this Agreement. The Company irrevocably waives, to the fullest extent permitted by
law, any objection that it may now or hereafter have to the laying of venue of any such suit, action or proceeding brought in such a court
and any claim that any such suit, action or proceeding brought in such a court has been brought in an inconvenient forum.

 

6.13           Waiver
of Trial by Jury. EACH PARTY HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVES THE RIGHT TO A TRIAL BY JURY IN ANY ACTION, SUIT, COUNTERCLAIM
OR OTHER PROCEEDING (WHETHER BASED ON CONTRACT, TORT OR OTHERWISE) ARISING OUT OF, CONNECTED WITH OR RELATING TO THIS AGREEMENT, THE TRANSACTIONS
CONTEMPLATED HEREBY, OR THE ACTIONS OF THE INVESTOR IN THE NEGOTIATION, ADMINISTRATION, PERFORMANCE OR ENFORCEMENT HEREOF.

 

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

 

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IN WITNESS WHEREOF, the parties
have caused this Registration Rights Agreement to be executed and delivered by their duly authorized representatives as of the date first
written above.

 

	 	COMPANY:
	 	ACCRETION ACQUISITION CORP.
	 	 	 	 
	 	By:	 
	 	 	Name:	 Brad Morse  
	 	 	Title:	Chief Executive Officer
	 	INVESTORS:

 

[Signature Page to Registration
Rights Agreement]

 

     

     

    

 

EXHIBIT A

 

Name and Address of Investor

 

    A-1

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