Document:

Exhibit 10.5

 

 

PRIVATE PLACEMENT
UNITS PURCHASE AGREEMENT

 

This PRIVATE PLACEMENT
UNITS PURCHASE AGREEMENT (this “Agreement”) is made as of the __________ day of __________ 2019, by and between
B. Riley Principal Merger Corp.., a Delaware corporation (the “Company”), and B. Riley Principal Sponsor Co.,
LLC, a Delaware limited liability company (the “Subscriber”), each with a principal place of business at 299
Park Avenue, 21st Floor New York, New York 10171.

 

WHEREAS, the Company
desires to sell to Subscriber on a private placement basis (the “Offering”) an aggregate of 425,000 units (the
“Initial Units”) of the Company and up to an additional 37,500 units (the “Additional Units”
and, together with the Initial Units the “Units”) of the Company, each Unit comprised of one share of Class
A common stock of the Company, par value $0.0001 per share (“Common Stock”), and one-half of one warrant (“Warrant”),
for a purchase price of $4,250,000 (or $4,625,000 if the over-allotment option is exercised in full), or $10.00 per Unit. The shares
of Common Stock underlying the Warrants are hereinafter referred to as the “Warrant Shares”. The shares of Common
Stock underlying the Units (excluding the Warrant Shares) are hereinafter referred to as the “Placement Shares.”
The Warrants underlying the Units are hereinafter referred to as the “Placement Warrants.” The Units, Placement
Shares, Placement Warrants and Warrant Shares, collectively, are hereinafter referred to as the “Securities.”
Each whole Placement Warrant is exercisable to purchase one share of Common Stock at an exercise price of $11.50 per share during
the period commencing on the later of (i) twelve (12) months from the date of the closing of the Company’s initial public
offering of units (the “IPO”) and (ii) 30 days following the consummation of the Company’s initial business
combination (the “Business Combination”), as such term is defined in the registration statement in connection
with the IPO, as amended at the time it becomes effective (the “Registration Statement”), and expiring on the
fifth anniversary of the consummation of the Business Combination; and

 

WHEREAS, Subscriber
wishes to purchase 425,000 Units (or 462,500 Units if the over-allotment option is exercised in full) for a purchase price of $4,250,000
(or $4,625,000 if the over-allotment option is exercised in full) and the Company wishes to accept such subscription from Subscriber.

 

NOW, THEREFORE, in
consideration of the premises and the mutual covenants hereinafter set forth and other good and valuable consideration, the receipt
and sufficiency of which are hereby acknowledged, the Company and Subscriber hereby agree as follows:

 

1. Agreement to
Subscribe

 

1.1. Purchase and Issuance
of the Units. Upon the terms and subject to the conditions of this Agreement, Subscriber hereby agrees to purchase from the Company,
and the Company hereby agrees to sell to Subscriber, on the Closing Date (as defined below) the Initial Units in consideration
of the payment of the Initial Purchase Price (as defined below). On the Closing Date, the Company shall deliver (via book entry)
to Subscriber the Securities purchased. Subscriber hereby agrees to purchase up to an additional 37,500 Additional Units at $10.00
per Additional Unit for a purchase price of up to $375,000. The purchase and issuance of the Additional Units shall occur only
in the event that the Over-Allotment Option is exercised in full or in part. The total number of Additional Units to be purchased
hereunder shall be in the same proportion as the proportion of the Over-Allotment Option that is exercised. Each purchase of Additional
Units shall occur simultaneously with the consummation of any portion of the Over-Allotment Option.

 

1.2. Purchase Price.
As payment in full for the Initial Units being purchased under this Agreement, Subscriber shall pay an aggregate of $4,250,000
(the “Initial Purchase Price”) by wire transfer of immediately available funds or by such other method as may
be reasonably acceptable to the Company, to the trust account (the “Trust Account”) at a financial institution
to be chosen by the Company, maintained by Continental Stock Transfer & Trust Company, acting as trustee (“Continental”),
no later than one (1) business day prior to the date of effectiveness of the Registration Statement. As payment in full for the
Additional Units being purchased under this Agreement, Subscriber shall pay $10.00 per Additional Unit being purchased by wire
transfer of immediately available funds or by such other method as may be reasonably acceptable to the Company, to the Trust Account
at a financial institution to be chosen by the Company, maintained by Continental, one (1) business day prior to the Closing Date
of the Over-Allotment Option.

 

1.3. Closing. The closing
of the purchase and sale of the Initial Units shall take place simultaneously with the closing of the IPO and the closing of the
purchase and sale of Additional Units shall take place simultaneously with the closing of the Over-Allotment Option (each, a “Closing
Date”). The closing of the purchase and sale of the Units shall take place at the offices of Winston & Strawn LLP,
200 Park Avenue, New York, New York, 10166, or such other place as may be agreed upon by the parties hereto.

 

1.4 Termination. This
Agreement and each of the obligations of the undersigned shall be null and void and without effect if the IPO does not close prior
to December 31, 2019.

 

    	 

     

    

 

2. Representations
and Warranties of Subscriber

 

Subscriber represents
and warrants to the Company that:

 

2.1. No Government
Recommendation or Approval. Subscriber understands that no federal or state agency has passed upon or made any recommendation or
endorsement of the Company or the Offering of the Securities.

 

2.2. Accredited Investor.
Subscriber represents that it is an “accredited investor” as such term is defined in Rule 501(a) of Regulation D under
the Securities Act of 1933, as amended (the “Securities Act”), and acknowledges that the sale contemplated hereby
is being made in reliance, among other things, on a private placement exemption to “accredited investors” under the
Securities Act and similar exemptions under state law.

 

2.3. Intent. Subscriber
is purchasing the Securities solely for investment purposes, for Subscriber’s own account (and/or for the account or benefit
of its members or affiliates, as permitted, pursuant to the terms of an agreement (the “Insider Letter”) to
be entered into with respect to the Securities between, among others, Subscriber and the Company, as described in the Registration
Statement), and not with a view to the distribution thereof and Subscriber has no present arrangement to sell the Securities to
or through any person or entity except as may be permitted under the Insider Letter. Subscriber shall not engage in hedging transactions
with regard to the Securities unless in compliance with the Securities Act.

 

2.4. Restrictions on
Transfer. Subscriber acknowledges and understands the Units are being offered in a transaction not involving a public offering
in the United States within the meaning of the Securities Act. The Securities have not been registered under the Securities Act
and, if in the future Subscriber decides to offer, resell, pledge or otherwise transfer the Securities, such Securities may be
offered, resold, pledged or otherwise transferred only (A) pursuant to an effective registration statement filed under the Securities
Act, (B) pursuant to an exemption from registration under Rule 144 promulgated under the Securities Act, if available, or (C) pursuant
to any other available exemption from the registration requirements of the Securities Act, and in each case in accordance with
any applicable securities laws of any state or any other jurisdiction. Notwithstanding the foregoing, Subscriber acknowledges and
understands the Securities are subject to transfer restrictions as described in Section 8 hereof. Subscriber agrees that if any
transfer of its Securities or any interest therein is proposed to be made, as a condition precedent to any such transfer, Subscriber
may be required to deliver to the Company an opinion of counsel satisfactory to the Company with respect to such transfer. Absent
registration or another available exemption from registration, Subscriber agrees it will not resell the Securities (unless otherwise
permitted pursuant to the Insider Letter, as described in the Registration Statement). Subscriber further acknowledges that because
the Company is a shell company, Rule 144 may not be available to Subscriber for the resale of the Securities until the one-year
anniversary following consummation of the Business Combination of the Company, despite technical compliance with the requirements
of Rule 144 and the release or waiver of any contractual transfer restrictions.

 

2.5. Sophisticated
Investor.

 

(i) Subscriber is
sophisticated in financial matters and is able to evaluate the risks and benefits of the investment in the Securities.

 

(ii) Subscriber is
aware that an investment in the Securities is highly speculative and subject to substantial risks because, among other things,
the Securities are subject to transfer restrictions and have not been registered under the Securities Act and therefore cannot
be sold unless subsequently registered under the Securities Act or an exemption from such registration is available. Subscriber
is able to bear the economic risk of its investment in the Securities for an indefinite period of time.

 

2.6. Independent Investigation.
Subscriber, in making the decision to purchase the Units, has relied upon an independent investigation of the Company and has not
relied upon any information or representations made by any third parties or upon any oral or written representations or assurances
from the Company, its officers, directors or employees or any other representatives or agents of the Company, other than as set
forth in this Agreement. Subscriber is familiar with the business, operations and financial condition of the Company and has had
an opportunity to ask questions of, and receive answers from the Company’s officers and directors concerning the Company
and the terms and conditions of the offering of the Units and has had full access to such other information concerning the Company
as Subscriber has requested. Subscriber confirms that all documents that it has requested have been made available and that Subscriber
has been supplied with all of the additional information concerning this investment which Subscriber has requested.

 

2.7 Organization and
Authority. Subscriber is duly organized, validly existing and in good standing under the laws of the State of Delaware and it possesses
all requisite power and authority necessary to carry out the transactions contemplated by this Agreement.

 

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2.8. Authority. This
Agreement has been validly authorized, executed and delivered by Subscriber and is a valid and binding agreement enforceable in
accordance with its terms, subject to the general principles of equity and to bankruptcy or other laws affecting the enforcement
of creditors’ rights generally.

 

2.9. No Conflicts.
The execution, delivery and performance of this Agreement and the consummation by Subscriber of the transactions contemplated hereby
do not violate, conflict with or constitute a default under (i) Subscriber's charter documents, (ii) any agreement or instrument
to which Subscriber is a party or (iii) any law, statute, rule or regulation to which Subscriber is subject, or any agreement,
order, judgment or decree to which Subscriber is subject.

 

2.10. No Legal Advice
from Company. Subscriber acknowledges it has had the opportunity to review this Agreement and the transactions contemplated by
this Agreement and the other agreements entered into between the parties hereto with Subscriber’s own legal counsel and investment
and tax advisors. Except for any statements or representations of the Company made in this Agreement and the other agreements entered
into between the parties hereto, Subscriber is relying solely on such counsel and advisors and not on any statements or representations
of the Company or any of its representatives or agents for legal, tax or investment advice with respect to this investment, the
transactions contemplated by this Agreement or the securities laws of any jurisdiction.

 

2.11. Reliance on Representations
and Warranties. Subscriber understands the Units are being offered and sold to Subscriber in reliance on exemptions from the registration
requirements under the Securities Act, and analogous provisions in the laws and regulations of various states, and that the Company
is relying upon the truth and accuracy of the representations, warranties, agreements, acknowledgments and understandings of Subscriber
set forth in this Agreement in order to determine the applicability of such provisions.

 

2.12. No General Solicitation.
Subscriber is not subscribing for the Units as a result of or subsequent to any general solicitation or general advertising, including
but not limited to any advertisement, article, notice or other communication published in any newspaper, magazine, or similar media
or broadcast over television or radio, or presented at any seminar or meeting or in a registration statement with respect to the
IPO filed with the Securities and Exchange Commission (the “SEC”).

 

2.13. Legend. Subscriber
acknowledges and agrees the certificates evidencing each of the Securities shall bear a restrictive legend (the “Legend”),
in form and substance substantially as set forth in Section 4 hereof.

 

3. Representations,
Warranties and Covenants of the Company

 

The Company represents
and warrants to, and agrees with, Subscriber that:

 

3.1. Valid Issuance
of Capital Stock. The total number of shares of all classes of capital stock which the Company has authority to issue is 125,000,000
shares of common stock, including 100,000,000 shares of Class A Common Stock and 25,000,000 shares of Class B common stock, $0.0001
par value per share (“Class B Common Stock”), and 1,000,000 shares of preferred stock, $0.0001
par value per share (“Preferred Stock”). As of the date hereof, the Company has issued and outstanding 3,593,750
shares of Class B Common Stock (of which up to 468,750 shares are subject to forfeiture as described in the Registration Statement),
no shares of Class A Common Stock and no shares of Preferred Stock. All of the issued shares of capital stock of the Company have
been duly authorized, validly issued, and are fully paid and non-assessable.

 

3.2 Title to Securities.
Upon issuance in accordance with, and payment pursuant to, the terms hereof and that certain warrant agreement to be entered into
between the Company and Continental, as warrant agent (the “Warrant Agreement”), each of the Units, Placement
Shares, Placement Warrants and Warrant Shares will be duly and validly issued, fully paid and non-assessable. On the date of issuance
of the Units, the Warrant Shares shall have been reserved for issuance. Upon issuance in accordance with, and payment pursuant
to, the terms hereof and the Warrant Agreement, Subscriber will have or receive good title to the Units, Placement Shares and Placement
Warrants, free and clear of all liens, claims and encumbrances of any kind, other than (i) transfer restrictions hereunder and
pursuant to the Insider Letter and (ii) transfer restrictions under federal and state securities laws.

 

3.3. Organization and
Qualification. The Company is a corporation duly incorporated, validly existing and in good standing under the laws of the State
of Delaware and has the requisite corporate power to own its properties and assets and to carry on its business as now being conducted.

 

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3.4. Authorization;
Enforcement. (i) The Company has the requisite corporate power and authority to enter into and perform its obligations under this
Agreement and to issue the Securities in accordance with the terms hereof, (ii) the execution, delivery and performance of this
Agreement by the Company and the consummation by it of the transactions contemplated hereby have been duly authorized by all necessary
corporate action, and no further consent or authorization of the Company or its Board of Directors or stockholders is required,
(iii) this Agreement constitutes valid and binding obligations of the Company enforceable against the Company in accordance with
its terms, except as such enforceability may be limited by applicable bankruptcy, insolvency, fraudulent conveyance, moratorium,
reorganization, or similar laws relating to, or affecting generally the enforcement of, creditors’ rights and remedies or
by equitable principles of general application and except as enforcement of rights to indemnity and contribution may be limited
by federal and state securities laws or principles of public policy, (iv) the Units, when issued and delivered in the manner set
forth herein, will constitute valid and binding obligations of the Company enforceable against the Company in accordance with their
terms, except as such enforceability may be limited by applicable bankruptcy, insolvency, fraudulent conveyance, moratorium, reorganization,
or similar laws relating to, or affecting generally the enforcement of, creditors’ rights and remedies or by equitable principles
of general application and except as enforcement of rights to indemnity and contribution may be limited by federal and state securities
laws or principles of public policy and (v) the Placement Warrants, when issued and delivered in the manner set forth herein, will
constitute valid and binding obligations of the Company enforceable against the Company in accordance with their terms, except
as such enforceability may be limited by applicable bankruptcy, insolvency, fraudulent conveyance, moratorium, reorganization,
or similar laws relating to, or affecting generally the enforcement of, creditors’ rights and remedies or by equitable principles
of general application and except as enforcement of rights to indemnity and contribution may be limited by federal and state securities
laws or principles of public policy.

 

3.5. No Conflicts.
The execution, delivery and performance of this Agreement and the consummation by the Company of the transactions contemplated
hereby do not (i) result in a violation of the Company’s certificate of incorporation or by-laws, (ii) conflict with, or
constitute a default under any agreement or instrument to which the Company is a party or (iii) any law statute, rule or regulation
to which the Company is subject or any agreement, order, judgment or decree to which the Company is subject. Other than any SEC
or state securities filings which may be required to be made by the Company subsequent to the closing of the IPO, and any registration
statement which may be filed pursuant thereto, the Company is not required under federal, state or local law, rule or regulation
to obtain any consent, authorization or order of, or make any filing or registration with, any court or governmental agency or
self-regulatory entity in order for it to perform any of its obligations under this Agreement or issue the Units, Placement Shares,
Placement Warrants or the Warrant Shares in accordance with the terms hereof.

 

4. Legends

 

4.1. Legend. The Company
will issue the Units, Placement Shares and Placement Warrants, and when issued, the Warrant Shares, purchased by Subscriber in
the name of Subscriber. The Securities will bear the following Legend and appropriate “stop transfer” instructions:

 

“THE
SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”),
OR ANY STATE SECURITIES LAWS AND NEITHER THE SECURITIES NOR ANY INTEREST THEREIN MAY BE OFFERED, SOLD, TRANSFERRED, PLEDGED OR
OTHERWISE DISPOSED OF EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR SUCH LAWS OR AN EXEMPTION
FROM REGISTRATION UNDER THE SECURITIES ACT AND SUCH LAWS WHICH, IN THE OPINION OF COUNSEL FOR THIS CORPORATION, IS AVAILABLE.”

 

“THE
SECURITIES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO LOCKUP PURSUANT TO AN INSIDER LETTER BETWEEN, AMONG OTHERS, B. RILEY
PRINCIPAL MERGER CORP. AND B. RILEY PRINCIPAL SPONSOR CO., LLC AND MAY ONLY BE OFFERED, SOLD, TRANSFERRED, PLEDGED OR OTHERWISE
DISPOSED DURING THE TERM OF THE LOCKUP PURSUANT TO THE TERMS SET FORTH IN THE INSIDER LETTER.”

 

4.2. Subscriber’s
Compliance. Nothing in this Section 4 shall affect in any way Subscriber’s obligations and agreements to comply with all
applicable securities laws upon resale of the Securities.

 

4.3. Company’s
Refusal to Register Transfer of the Securities. The Company shall refuse to register any transfer of the Securities, if in the
sole judgment of the Company such purported transfer would not be made (i) pursuant to an effective registration statement filed
under the Securities Act, or pursuant to an available exemption from the registration requirements of the Securities Act and (ii)
in compliance herewith and with the Insider Letter.

 

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4.4 Registration Rights.
Subscriber will be entitled to certain registration rights which will be governed by a registration rights agreement (“Registration
Rights Agreement”) to be entered into between, among others, Subscriber and the Company, on or prior to the effective
date of the Registration Statement.

 

5. Waiver of Liquidation
Distributions.

 

In connection with
the Securities purchased pursuant to this Agreement, Subscriber hereby waives any and all right, title, interest or claim of any
kind in or to any distributions of the amounts in the Trust Account with respect to the Securities, whether (i) in connection with
the exercise of redemption rights if the Company consummates the Business Combination, (ii) in connection with any tender offer
conducted by the Company prior to a Business Combination, (iii) upon the Company’s redemption of shares of Common Stock sold
in the Company’s IPO upon the Company’s failure to timely complete the Business Combination or (iv) in connection with
a stockholder vote to approve an amendment to the Company’s amended and restated certificate of incorporation (A) to modify
the substance or timing of the Company’s obligation to redeem 100% of the Company’s public shares if the Company does
not timely complete the Business Combination or (B) with respect to any other provision relating to stockholders’ rights
or pre-Business Combination activity. In the event Subscriber purchases shares of Common Stock in the IPO or in the aftermarket,
any additional shares so purchased shall be eligible to receive the redemption value of such shares of Common Stock upon the same
terms offered to all other purchasers of Common Stock in the IPO in the event the Company fails to consummate the Business Combination.

 

6. Terms of Placement
Warrants.

 

6.1 Terms. Each Placement
Warrant shall have the terms set forth in the Warrant Agreement.

 

6.2. Failure to Consummate
Business Combination. The Placement Warrants shall be terminated upon the dissolution of the Company or in the event that the Company
does not consummate the Business Combination within 24 months from the consummation of the IPO, unless otherwise extended by the
Company.

 

6.3. Termination of
Rights as Holder. If the Placement Warrants are terminated in accordance with Section 6.1, then after such time Subscriber (or
its successor in interest) shall no longer have any rights as a holder of such Placement Warrants and the Company shall take such
action as is appropriate to cancel such Placement Warrants. Subscriber hereby irrevocably grants the Company a limited power of
attorney for the purpose of effectuating the foregoing and agrees to take any and all measures reasonably requested by the Company
necessary to effect the foregoing.

 

7. Rescission Right
Waiver and Indemnification.

 

7.1. Subscriber understands
and acknowledges an exemption from the registration requirements of the Securities Act requires there be no general solicitation
of purchasers of the Units. In this regard, if the IPO were deemed to be a general solicitation with respect to the Units, the
offer and sale of such Units may not be exempt from registration and, if not, Subscriber may have a right to rescind its purchase
of the Units. In order to facilitate the completion of the Offering and in order to protect the Company, its stockholders and the
amounts in the Trust Account from claims that may adversely affect the Company or the interests of its stockholders, Subscriber
hereby agrees to waive, to the maximum extent permitted by applicable law, any claims, right to sue or rights in law or arbitration,
as the case may be, to seek rescission of its purchase of the Units. Subscriber acknowledges and agrees this waiver is being made
in order to induce the Company to sell the Units to Subscriber. Subscriber agrees the foregoing waiver of rescission rights shall
apply to any and all known or unknown actions, causes of action, suits, claims or proceedings (collectively, “Claims”)
and related losses, costs, penalties, fees, liabilities and damages, whether compensatory, consequential or exemplary, and expenses
in connection therewith, including reasonable attorneys’ and expert witness fees and disbursements and all other expenses
reasonably incurred in investigating, preparing or defending against any Claims, whether pending or threatened, in connection with
any present or future actual or asserted right to rescind the purchase of the Units hereunder or relating to the purchase of the
Units and the transactions contemplated hereby.

 

7.2. Subscriber agrees
not to seek recourse against the Trust Account for any reason whatsoever in connection with its purchase of the Units or any Claim
that may arise now or in the future.

 

7.3. Subscriber acknowledges
and agrees that the stockholders of the Company are and shall be third-party beneficiaries of this Section 7.

 

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7.4. Subscriber agrees
that to the extent any waiver of rights under this Section 7 is ineffective as a matter of law, Subscriber has offered such waiver
for the benefit of the Company as an equitable right that shall survive any statutory disqualification or bar that applies to a
legal right. Subscriber acknowledges the receipt and sufficiency of consideration received from the Company hereunder in this regard.

 

8. Terms of the
Units and Placement Warrants

 

8.1 The Units and their
component parts are substantially identical to the units to be offered in the IPO except that: (i) the Units and component parts
will be subject to transfer restrictions, except in limited circumstances, until 30 days following the consummation of the Business
Combination, (ii) the Placement Warrants will be non-redeemable so long as they are held by Subscriber (or any of its permitted
transferees), and may be exercisable on a “cashless” basis if held by Subscriber or its permitted transferees, as further
described in the Warrant Agreement, and (iii) the Units and component parts are being purchased pursuant to an exemption from the
registration requirements of the Securities Act and will become freely tradable only after the expiration of the lockup described
above in clause (i) and they are registered pursuant to the Registration Rights Agreement to be signed on or before the date of
the Prospectus or an exemption from registration is available, and the restrictions described above in clause (i) has expired.
Additionally, the Subscriber acknowledges and agrees that the Units and their component parts will be deemed underwriting compensation
by the Financial Industry Regulatory Authority (“FINRA”) and, pursuant to FINRA Rule 5110(g)(1), may not be sold during
the offering, or transferred, assigned, pledged or hypothecated or be the subject of any hedging, short sale, derivative, put or
call transaction that would result in the economic disposition of the securities for a period of 180 days immediately following
the date of effectiveness or commencement of sales in the IPO, except as provided in FINRA Rule 5110(g)(2).

 

8.2 Subscriber agrees to vote the Placement
Shares in accordance with the terms of the Insider Letter and as otherwise described in the Registration Statement.

 

9. Governing Law;
Jurisdiction; Waiver of Jury Trial

 

This Agreement shall
be governed by and construed in accordance with the laws of the State of New York for agreements made and to be wholly performed
within such state, without regards to the conflicts of laws principles thereof. Any suit brought by either party shall be brought
in the state or federal courts sitting in New York County in the State of New York. The parties hereto hereby waive any right to
a jury trial in connection with any litigation pursuant to this Agreement and the transactions contemplated hereby.

 

10. Assignment;
Entire Agreement; Amendment

 

10.1. Assignment. Neither
this Agreement nor any rights hereunder may be assigned, in whole or in part, by any party to any other person without the prior
written consent of the other party hereto except that Subscriber may assign this Agreement, or any of its rights hereunder, to
a person agreeing to be bound by the terms hereof, including the waiver contained in Section 7 hereof.

 

10.2. Entire Agreement.
This Agreement sets forth the entire agreement and understanding between the parties as to the subject matter thereof and merges
and supersedes all prior discussions, agreements and understandings of any and every nature among them with respect to such subject
matter.

 

10.3. Amendment. Except
as expressly provided in this Agreement, neither this Agreement nor any term hereof may be amended, waived, discharged or terminated
other than by a written instrument signed by the party against whom enforcement of any such amendment, waiver, discharge or termination
is sought.

 

10.4. Binding upon
Successors. This Agreement shall be binding upon and inure to the benefit of the parties hereto and to their respective successors
and permitted assigns.

 

11. Notices

 

11.1 Notices. Unless
otherwise provided herein, any notice or other communication to a party hereunder shall be sufficiently given if in writing and
personally delivered or sent by facsimile or other electronic transmission with copy sent in another manner herein provided or
sent by courier (which for all purposes of this Agreement shall include Federal Express or other recognized overnight courier)
or mailed to said party by certified mail, return receipt requested, at its address provided for herein or such other address as
either may designate for itself in such notice to the other. Communications shall be deemed to have been received when delivered
personally, on the scheduled arrival date when sent by next day or 2nd-day courier service, or if sent by facsimile upon receipt
of confirmation of transmittal or, if sent by mail, then three days after deposit in the mail. If given by electronic transmission,
such notice shall be deemed to be delivered when directed to an electronic mail address at which such party has consented to receive
notice.

 

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12. Counterparts

 

This Agreement may
be executed in one or more counterparts, all of which when taken together shall be considered one and the same agreement and shall
become effective when counterparts have been signed by each party and delivered to the other party, it being understood that both
parties need not sign the same counterpart. 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.

 

13. Survival; Severability

 

13.1. Survival. The
representations, warranties, covenants and agreements of the parties hereto shall survive the Closing.

 

13.2. Severability.
In the event that any provision of this Agreement becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable
or void, this Agreement shall continue in full force and effect without said provision; provided that no such severability shall
be effective if it materially changes the economic benefit of this Agreement to any party.

 

14. Headings.

 

The titles and subtitles
used in this Agreement are used for convenience only and are not to be considered in construing or interpreting this Agreement.

 

[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.

 

	 	B. RILEY PRINCIPAL MERGER CORP.
	 	 	 
	 	By:	 
	 	 	Name: 
	 	 	Title:   

 

	 	B. RILEY PRINCIPAL SPONSOR CO., LLC
	 	 	 
	 	By:	 
	 	 	Name: 
	 	 	Title:   

 

[Signature Page to Private Placement
Units Subscription Agreement]Exhibit 10.6

 

INDEMNITY AGREEMENT

 

THIS INDEMNITY AGREEMENT (this
“Agreement”) is made as of __________, 2019, by and between B. Riley Principal Merger Corp., a Delaware
corporation (the “Company”), and __________ (“Indemnitee”).

 

RECITALS

 

WHEREAS, highly
competent persons have become more reluctant to serve publicly-held corporations as directors, officers or in other capacities
unless they are provided with adequate protection through insurance or adequate indemnification against inordinate risks of claims
and actions against them arising out of their service to and activities on behalf of such corporations;

 

WHEREAS, the board
of directors of the Company (the “Board”) has determined that, in order to attract and retain qualified
individuals, the Company will attempt to maintain on an ongoing basis, at its sole expense, liability insurance to protect persons
serving the Company and its subsidiaries from certain liabilities;

 

WHEREAS, directors,
officers and other persons in service to corporations or business enterprises are being increasingly subjected to expensive and
time-consuming litigation relating to, among other things, matters that traditionally would have been brought only against the
Company or business enterprise itself.;

 

WHEREAS, the Second
Amended and Restated Certificate of Incorporation (the “Charter”) and the Bylaws (the “Bylaws”)
of the Company require indemnification of the officers and directors of the Company. Indemnitee may also be entitled to indemnification
pursuant to applicable provisions of the Delaware General Corporation Law (“DGCL”). The Charter, Bylaws
and the DGCL expressly provide that the indemnification provisions set forth therein are not exclusive, and thereby contemplate
that contracts may be entered into between the Company and members of the Board, officers and other persons with respect to indemnification,
hold harmless, exoneration, advancement and reimbursement rights;

 

WHEREAS, the uncertainties
relating to such insurance and to indemnification have increased the difficulty of attracting and retaining such persons;

 

WHEREAS, the Board
has determined that the increased difficulty in attracting and retaining such persons is detrimental to the best interests of the
Company’s stockholders and that the Company should act to assure such persons that there will be increased certainty of such
protection in the future;

 

WHEREAS, it is reasonable,
prudent and necessary for the Company contractually to obligate itself to indemnify, hold harmless, exonerate and to advance expenses
on behalf of, such persons to the fullest extent permitted by applicable law so that they will serve or continue to serve the Company
free from undue concern that they will not be so protected against liabilities;

 

WHEREAS, this Agreement
is a supplement to and in furtherance of the Charter and Bylaws and any resolutions adopted pursuant thereto, and shall not be
deemed a substitute therefor, nor to diminish or abrogate any rights of Indemnitee thereunder;

 

WHEREAS, Indemnitee
may not be willing to serve as an officer or director, advisor or in another capacity without adequate protection, and the Company
desires Indemnitee to serve in such capacity. Indemnitee is willing to serve, continue to serve and to take on additional service
for or on behalf of the Company on the condition that Indemnitee be so indemnified; and

 

NOW, THEREFORE,
in consideration of the premises and the covenants contained herein, the Company and Indemnitee do hereby covenant and agree as
follows:

 

    	 	 	 

     

    

  

TERMS AND CONDITIONS

 

1. SERVICES TO THE COMPANY. 
Indemnitee will serve or continue to serve as an officer, director, advisor, key employee or in any other capacity of the Company,
as applicable, for so long as Indemnitee is duly elected or appointed or retained or until Indemnitee tenders Indemnitee’s
resignation or until Indemnitee is removed. The foregoing notwithstanding, this Agreement shall continue in full force and effect
after Indemnitee has ceased to serve as a director, officer, advisor, key employee or in any other capacity of the Company, in
each case as provided in Section 17. This Agreement, however,
shall not impose any obligation on Indemnitee or the Company to continue Indemnitee’s
service to the Company beyond any period otherwise required by law or by other agreements or commitments of the parties, if any.

 

2. DEFINITIONS.
As used in this Agreement:

 

(a) “agent”
shall mean any person who is or was a director, officer or employee of the Company or a subsidiary of the Company or other person
authorized by the Company to act for the Company, to include such person serving in such capacity as a director, officer, employee,
fiduciary or other official of another corporation, partnership, limited liability company, joint venture, trust or other enterprise
at the request of, for the convenience of, or to represent the interests of the Company or a subsidiary of the Company.

 

(b) “Beneficial
Owner” and “Beneficial
Ownership” shall have the meanings set forth in Rule 13d-3
promulgated under the Exchange Act (as defined below) as in effect on the date hereof.

 

(c) “Change
in Control” shall mean the occurrence of the earliest
to occur after the date of this Agreement of any of the following events:

 

(i) Acquisition of Stock
by Third Party. Other than B. Riley Principal Sponsor Co., LLC (the “Sponsor”)
or any of its affiliates, any Person (as defined below) is or becomes the Beneficial Owner, directly or indirectly, of securities
of the Company representing fifteen percent (15%) or more of the combined voting power of the Company’s
then outstanding securities entitled to vote generally in the election of directors, unless (1) the
change in the relative Beneficial Ownership of the Company’s
securities by any Person results solely from a reduction in the aggregate number of outstanding shares of securities entitled to
vote generally in the election of directors, or (2) such acquisition
was approved in advance by the Continuing Directors (as defined below) and such acquisition would not constitute a Change in Control
under part (iii) of this definition;

 

(ii) Change in Board
of Directors. Individuals who, as of the date hereof, constitute the Board, and any new director whose election by the Board
or nomination for election by the Company’s stockholders
was approved by a vote of at least two thirds of the directors then still in office who were directors on the date hereof or whose
election for nomination for election was previously so approved (collectively, the “Continuing
Directors”), cease for any reason to constitute at
least a majority of the members of the Board;

 

(iii) Corporate Transactions.
The effective date of a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination,
involving the Company and one or more businesses (a “Business
Combination”), in each case, unless, following such
Business Combination: (1) all or substantially all of the
individuals and entities who were the Beneficial Owners of securities entitled to vote generally in the election of directors immediately
prior to such Business Combination beneficially own, directly or indirectly, more than 51% of the combined voting power of the
then outstanding securities of the Company entitled to vote generally in the election of directors resulting from such Business
Combination (including, without limitation, a corporation which as a result of such transaction owns the Company or all or substantially
all of the Company’s assets either directly or through one
or more Subsidiaries (as defined below)) in substantially the same proportions as their ownership immediately prior to such Business
Combination, of the securities entitled to vote generally in the election of directors; (2) other
than an affiliate of the Sponsor, no Person (excluding any corporation resulting from such Business Combination) is the Beneficial
Owner, directly or indirectly, of fifteen percent (15%) or more of the combined voting power of the then outstanding securities
entitled to vote generally in the election of directors of the surviving corporation except to the extent that such ownership existed
prior to the Business Combination; and (3) at least a majority
of the Board of Directors of the corporation resulting from such Business Combination were Continuing Directors at the time of
the execution of the initial agreement, or of the action of the Board of Directors, providing for such Business Combination;

 

    	 	2	 

     

    

  

(iv) Liquidation.
The approval by the stockholders of the Company of a complete liquidation of the Company or an agreement or series of agreements
for the sale or disposition by the Company of all or substantially all of the Company’s
assets, other than factoring the Company’s current receivables
or escrows due (or, if such stockholder approval is not required, the decision by the Board to proceed with such a liquidation,
sale, or disposition in one transaction or a series of related transactions); or

 

(v) Other Events.
There occurs any other event of a nature that would be required to be reported in response to Item 6(e) of
Schedule 14A of Regulation 14A (or any successor rule) (or a response to any similar item on any similar schedule or form) promulgated
under the Exchange Act (as defined below), whether or not the Company is then subject to such reporting requirement.

 

(d) “Corporate
Status” describes the status of a person who is or
was a director, officer, trustee, general partner, manager, managing member, fiduciary, employee or agent of the Company or of
any other Enterprise (as defined below) which such person is or was serving at the request of the Company.

 

(e) “Delaware
Court” shall mean the Court of Chancery of the State
of Delaware.

 

(f) “Disinterested
Director” shall mean a director of the Company who
is not and was not a party to the Proceeding (as defined below) in respect of which indemnification is sought by Indemnitee.

 

(g) “Enterprise”
shall mean the Company and any other corporation, constituent corporation (including any constituent of a constituent) absorbed
in a consolidation or merger to which the Company (or any of its wholly owned subsidiaries) is a party, limited liability company,
partnership, joint venture, trust, employee benefit plan or other enterprise of which Indemnitee is or was serving at the request
of the Company as a director, officer, trustee, manager, general partner, managing member, fiduciary, employee or agent.

 

(h) “Exchange
Act” shall mean the Securities Exchange Act of 1934,
as amended.

 

(i) “Expenses”
shall include all direct and indirect costs, fees and expenses of any type or nature whatsoever, including, without limitation,
all reasonable attorneys’ fees and costs, retainers, court
costs, transcript costs, fees of experts, witness fees, travel expenses, fees of private investigators and professional advisors,
duplicating costs, printing and binding costs, telephone charges, postage, delivery service fees, fax transmission charges, secretarial
services and all other disbursements, obligations or expenses in connection with prosecuting, defending, preparing to prosecute
or defend, investigating, being or preparing to be a witness in, settlement or appeal of, or otherwise participating in, a Proceeding
(as defined below), including reasonable compensation for time spent by Indemnitee for which he or she is not otherwise compensated
by the Company or any third party. “Expenses”
also shall include expenses incurred in connection with any appeal resulting from any Proceeding (as defined below), including
without limitation the principal, premium, security for, and other costs relating to any cost bond, supersedeas bond, or other
appeal bond or its equivalent. “Expenses,”
however, shall not include amounts paid in settlement by Indemnitee or the amount of judgments or fines against Indemnitee.

 

(j) “fines”
shall include any excise tax assessed on Indemnitee with respect to any employee benefit plan.

 

(k) “Independent
Counsel” shall mean a law firm or a member of a law
firm with significant experience in matters of corporation law and that neither presently is, nor in the past five years has been,
retained to represent: (i) the Company or Indemnitee in any
matter material to either such party (other than with respect to matters concerning Indemnitee under this Agreement, or of other
indemnitees under similar indemnification agreements); or (ii) any
other party to the Proceeding (as defined below) giving rise to a claim for indemnification hereunder. Notwithstanding the foregoing,
the term “Independent Counsel”
shall not include any person who, under the applicable standards
of professional conduct then prevailing, would have a conflict of interest in representing either the Company or Indemnitee in
an action to determine Indemnitee’s rights under this Agreement.

 

    	 	3	 

     

    

 

(l) “Person”
shall have the meaning as set forth in Sections 13(d) and
14(d) of the Exchange Act as in effect on the date hereof;
provided, however, that “Person”
shall exclude: (i) the Company; (ii) any
Subsidiaries (as defined below) of the Company; (iii) any
employment benefit plan of the Company or of a Subsidiary (as defined below) of the Company or of any corporation owned, directly
or indirectly, by the stockholders of the Company in substantially the same proportions as their ownership of stock of the Company;
and (iv) any trustee or other fiduciary holding securities
under an employee benefit plan of the Company or of a Subsidiary (as defined below) of the Company or of a corporation owned directly
or indirectly by the stockholders of the Company in substantially the same proportions as their ownership of stock of the Company.

 

(m) “Proceeding”
shall include any threatened, pending or completed action, suit, arbitration, mediation, alternate dispute resolution mechanism,
investigation, inquiry, administrative hearing or any other actual, threatened or completed proceeding, whether brought in the
right of the Company or otherwise and whether of a civil (including intentional or unintentional tort claims), criminal, administrative
or investigative or related nature, in which Indemnitee was, is, will or might be involved as a party or otherwise by reason of
the fact that Indemnitee is or was a director or officer of the Company, by reason of any action (or failure to act) taken by Indemnitee
or of any action (or failure to act) on Indemnitee’s part
while acting as a director or officer of the Company, or by reason of the fact that Indemnitee is or was serving at the request
of the Company as a director, officer, trustee, general partner, managing member, fiduciary, employee or agent of any other Enterprise,
in each case whether or not serving in such capacity at the time any liability or expense is incurred for which indemnification,
reimbursement, or advancement of expenses can be provided under this Agreement.

 

(n) “serving
at the request of the Company” shall include any
service as a director, officer, employee, agent or fiduciary of the Company which imposes duties on, or involves services by, such
director, officer, employee, agent or fiduciary with respect to an employee benefit plan, its participants or beneficiaries; and
if Indemnitee acted in good faith and in a manner Indemnitee reasonably believed to be in the best interests of the participants
and beneficiaries of an employee benefit plan, Indemnitee
shall be deemed to have acted in a manner “not
opposed to the best interests of the Company” as
referred to in this Agreement.

 

(o) “Subsidiary,”
with respect to any Person, shall mean any corporation, limited liability company, partnership, joint venture, trust or other entity
of which a majority of the voting power of the voting equity securities or equity interest is owned, directly or indirectly, by
that Person.

 

3. INDEMNITY IN THIRD-PARTY
PROCEEDINGS. To the fullest extent permitted by applicable law, the Company shall indemnify, hold harmless and exonerate Indemnitee
in accordance with the provisions of this Section 3 if Indemnitee
was, is, or is threatened to be made, a party to or a participant (as a witness, deponent or otherwise) in any Proceeding, other
than a Proceeding by or in the right of the Company to procure a judgment in its favor by reason of Indemnitee’s
Corporate Status. Pursuant to this Section 3, Indemnitee
shall be indemnified, held harmless and exonerated against all Expenses, judgments, liabilities, fines, penalties and amounts paid
in settlement (including all interest, assessments and other charges paid or payable in connection with or in respect of such Expenses,
judgments, liabilities, fines, penalties and amounts paid in settlement) actually, and reasonably incurred by Indemnitee or on
Indemnitee’s behalf in connection with such Proceeding or
any claim, issue or matter therein, if Indemnitee acted in good faith and in a manner he or she reasonably believed to be in or
not opposed to the best interests of the Company and, in the case of a criminal Proceeding, had no reasonable cause to believe
that Indemnitee’s conduct was unlawful.

 

    	 	4	 

     

    

  

4. INDEMNITY IN PROCEEDINGS
BY OR IN THE RIGHT OF THE COMPANY. To the fullest extent permitted by applicable law, the Company shall indemnify, hold harmless
and exonerate Indemnitee in accordance with the provisions of this Section 4
if Indemnitee was, is, or is threatened to be made, a party to or a participant (as a witness, deponent or otherwise) in any Proceeding
by or in the right of the Company to procure a judgment in its favor by reason of Indemnitee’s
Corporate Status. Pursuant to this Section 4, Indemnitee
shall be indemnified, held harmless and exonerated against all Expenses actually and reasonably incurred by Indemnitee or on Indemnitee’s
behalf in connection with such Proceeding or any claim, issue or matter therein, if Indemnitee acted in good faith and in a manner
Indemnitee reasonably believed to be in or not opposed to the best interests of the Company. No indemnification, hold harmless
or exoneration for Expenses shall be made under this Section 4
in respect of any claim, issue or matter as to which Indemnitee shall have been finally adjudged by a court to be liable to the
Company, unless and only to the extent that any court in which the Proceeding was brought or the Delaware Court shall determine
upon application that, despite the adjudication of liability but in view of all the circumstances of the case, Indemnitee
is fairly and reasonably entitled to indemnification, to be held harmless or to exoneration.

 

5. INDEMNIFICATION FOR
EXPENSES OF A PARTY WHO IS WHOLLY OR PARTLY SUCCESSFUL. Notwithstanding any other provisions of this Agreement except for Section 27,
to the extent that Indemnitee was or is, by reason of Indemnitee’s
Corporate Status, a party to (or a participant in) and is successful, on the merits or otherwise, in any Proceeding or in defense
of any claim, issue or matter therein, in whole or in part, the Company shall, to the fullest extent permitted by applicable law,
indemnify, hold harmless and exonerate Indemnitee against all Expenses actually and reasonably incurred by Indemnitee in connection
therewith. If Indemnitee is not wholly successful in such Proceeding but is successful, on the merits or otherwise, as to one or
more but less than all claims, issues or matters in such Proceeding, the Company shall, to the fullest extent permitted by applicable
law, indemnify, hold harmless and exonerate Indemnitee against all Expenses actually and reasonably incurred by Indemnitee or on
Indemnitee’s behalf in connection with each successfully
resolved claim, issue or matter. If Indemnitee is not wholly successful in such Proceeding, the Company also shall, to the fullest
extent permitted by applicable law, indemnify, hold harmless and exonerate Indemnitee against all Expenses reasonably incurred
in connection with a claim, issue or matter related to any claim, issue, or matter on which Indemnitee was successful. For purposes
of this Section and without limitation, the termination of
any claim, issue or matter in such a Proceeding by dismissal, with or without prejudice, shall be deemed to be a successful result
as to such claim, issue or matter.

 

6. INDEMNIFICATION FOR
EXPENSES OF A WITNESS. Notwithstanding any other provision of this Agreement except for Section 27,
to the extent that Indemnitee is, by reason of Indemnitee’s
Corporate Status, a witness or deponent in any Proceeding to which Indemnitee was or is not a party or threatened to be made a
party, Indemnitee shall, to the fullest extent permitted by applicable law, be indemnified, held harmless and exonerated against
all Expenses actually and reasonably incurred by Indemnitee or on Indemnitee’s
behalf in connection therewith.

 

7. ADDITIONAL INDEMNIFICATION,
HOLD HARMLESS AND EXONERATION RIGHTS. Notwithstanding any limitation in Sections 3, 4, or 5 and except for Section 27,
the Company shall, to the fullest extent permitted by applicable law, indemnify, hold harmless and exonerate Indemnitee if Indemnitee
is a party to or threatened to be made a party to any Proceeding (including a Proceeding by or in the right of the Company to procure
a judgment in its favor) against all Expenses, judgments, liabilities, fines, penalties and amounts paid in settlement (including
all interest, assessments and other charges paid or payable in connection with or in respect of such Expenses, judgments, liabilities,
fines, penalties and amounts paid in settlement) actually and reasonably incurred by Indemnitee in connection with the Proceeding.
No indemnification, hold harmless or exoneration rights shall be available under this Section 7 on
account of Indemnitee’s conduct which constitutes a breach
of Indemnitee’s duty of loyalty to the Company or its stockholders
or is an act or omission not in good faith or which involves intentional misconduct or a knowing violation of the law.

 

8. CONTRIBUTION IN THE
EVENT OF JOINT LIABILITY.

 

(a) To the fullest extent
permissible under applicable law, if the indemnification, hold harmless and/or exoneration rights provided for in this Agreement
are unavailable to Indemnitee in whole or in part for any reason whatsoever, the Company, in lieu of indemnifying, holding harmless
or exonerating Indemnitee, shall pay, in the first instance, the entire amount incurred by Indemnitee, whether for judgments, liabilities,
fines, penalties, amounts paid or to be paid in settlement and/or for Expenses, in connection with any Proceeding without requiring
Indemnitee to contribute to such payment, and the Company hereby waives and relinquishes any right of contribution it may have
at any time against Indemnitee.

 

    	 	5	 

     

    

  

(b) The Company shall not
enter into any settlement of any Proceeding in which the Company is jointly liable with Indemnitee (or would be if joined in such
Proceeding) unless such settlement provides for a full and final release of all claims asserted against Indemnitee.

 

(c) The Company hereby agrees
to fully indemnify, hold harmless and exonerate Indemnitee from any claims for contribution which may be brought by officers, directors
or employees of the Company other than Indemnitee who may be jointly liable with Indemnitee.

 

9. EXCLUSIONS. Notwithstanding
any provision in this Agreement, the Company shall not be obligated under this Agreement to make any indemnification, advance expenses,
hold harmless or exoneration payment in connection with any claim made against Indemnitee:

 

(a) for which payment has
actually been received by or on behalf of Indemnitee under any insurance policy or other indemnity or advancement provision, except
with respect to any excess beyond the amount actually received under any insurance policy, contract, agreement, other indemnity
or advancement provision or otherwise;

 

(b) for an accounting of
profits made from the purchase and sale (or sale and purchase) by Indemnitee of securities of the Company within the meaning of
Section 16(b) of
the Exchange Act (or any successor rule) or similar provisions of state statutory law or common law; or

 

(c) except as otherwise provided
in Sections 14(f)-(g) hereof, prior to a Change in Control,
in connection with any Proceeding (or any part of any Proceeding) initiated by Indemnitee, including any Proceeding (or
any part of any Proceeding) initiated by Indemnitee against the Company or its directors, officers, employees or other indemnitees,
unless (i) the Board authorized the Proceeding (or any part
of any Proceeding) prior to its initiation or (ii) the Company
provides the indemnification, hold harmless or exoneration payment, in its sole discretion, pursuant to the powers vested in the
Company under applicable law. Indemnitee shall seek payments or advances from the Company only to the extent that such payments
or advances are unavailable from any insurance policy of the Company covering Indemnitee.

 

10. ADVANCES OF EXPENSES;
DEFENSE OF CLAIM.

 

(a) Notwithstanding any provision
of this Agreement to the contrary, except for Section 27, and to the fullest extent not prohibited by applicable law, the Company
shall pay the Expenses incurred by Indemnitee (or reasonably expected by Indemnitee to be incurred by Indemnitee within three months)
in connection with any Proceeding within ten (10) days after
the receipt by the Company of a statement or statements requesting such advances from time to time, prior to the final disposition
of any Proceeding. Advances shall, to the fullest extent permitted by law, be unsecured and interest free. Advances shall, to the
fullest extent permitted by law, be made without regard to Indemnitee’s
ability to repay the Expenses and without regard to Indemnitee’s
ultimate entitlement to be indemnified, held harmless or exonerated under the other provisions of this Agreement. Advances shall
include any and all reasonable Expenses incurred pursuing a Proceeding to enforce this right of advancement, including Expenses
incurred preparing and forwarding statements to the Company to support the advances claimed. To the fullest extent required by
applicable law, such payments of Expenses in advance of the final disposition of the Proceeding shall be made only upon the Company’s
receipt of an undertaking, by or on behalf of Indemnitee, to repay the advanced amounts to the extent that it is ultimately determined
that Indemnitee is not entitled to be indemnified, held harmless or exonerated by the Company under the provisions of this Agreement,
the Charter, the Bylaws, applicable law or otherwise. This Section 10(a) shall
not apply to any claim made by Indemnitee for which an indemnification, hold harmless or exoneration payment is excluded pursuant
to Section 9.

 

(b) The Company will be entitled
to participate in the Proceeding at its own expense.

 

(c) The Company shall not
settle any action, claim or Proceeding (in whole or in part) which would impose any Expense, judgment, liability, fine, penalty
or limitation on Indemnitee without Indemnitee’s prior written
consent.

 

    	 	6	 

     

    

  

11. PROCEDURE FOR NOTIFICATION
AND APPLICATION FOR INDEMNIFICATION.

 

(a) Indemnitee agrees to
promptly notify the Company in writing upon being served with any summons, citation, subpoena, complaint, indictment, information
or other document relating to any Proceeding, claim, issue or matter therein which may be subject to indemnification, hold harmless
or exoneration rights, or advancement of Expenses covered hereunder. The failure of Indemnitee to so notify the Company shall not
relieve the Company of any obligation which it may have to Indemnitee under this Agreement, or otherwise.

 

(b) Indemnitee may deliver
to the Company a written application to indemnify, hold harmless or exonerate Indemnitee in accordance with this Agreement. Such
application(s) may be delivered from time to time and at such
time(s) as Indemnitee deems appropriate in his or her sole
discretion. Following such a written application for indemnification by Indemnitee, Indemnitee’s
entitlement to indemnification shall be determined according to Section 12(a) of
this Agreement.

 

12. PROCEDURE UPON APPLICATION
FOR INDEMNIFICATION.

 

(a) A determination, if required
by applicable law, with respect to Indemnitee’s entitlement
to indemnification shall be made in the specific case by one of the following methods: (i) if
no Change in Control has occurred (x) by a majority vote of the Disinterested Directors, even though less than a quorum of the
Board, (y) by a committee of Disinterested Directors, even
though less than a quorum of the Board, or (z) if there are
no Disinterested Directors, or if such Disinterested Directors so direct, by Independent Counsel in a written opinion to the Board,
a copy of which shall be delivered to Indemnitee; or (ii) if
a Change in Control has occurred, by Independent Counsel in a written opinion to the Board, a copy of which shall be delivered
to Indemnitee. The Company promptly will advise Indemnitee in writing with respect to any determination that Indemnitee is or is
not entitled to indemnification, including a description of any reason or basis for which indemnification has been denied. If it
is so determined that Indemnitee is entitled to indemnification, payment to Indemnitee shall be made within
ten (10) days after such determination. Indemnitee shall reasonably
cooperate with the person, persons or entity making such determination with respect to Indemnitee’s
entitlement to indemnification, including providing to such person, persons or entity upon reasonable advance request any documentation
or information which is not privileged or otherwise protected from disclosure and which is reasonably available to Indemnitee and
reasonably necessary to such determination. Any costs or Expenses incurred by Indemnitee in so cooperating with the person, persons
or entity making such determination shall be borne by the Company (irrespective of the determination as to Indemnitee’s
entitlement to indemnification) and the Company hereby agrees to indemnify and to hold Indemnitee harmless therefrom.

 

(b) In the event the determination
of entitlement to indemnification is to be made by Independent Counsel pursuant to Section 12(a) hereof,
the Independent Counsel shall be selected as provided in this Section 12(b).
The Independent Counsel shall be selected by Indemnitee (unless Indemnitee shall request that such selection be made by the Board),
and Indemnitee shall give written notice to the Company advising it of the identity of the Independent Counsel so selected and
certifying that the Independent Counsel so selected meets the requirements of “Independent
Counsel” as defined in Section 2
of this Agreement. If the Independent Counsel is selected by the Board, the Company shall give written notice to Indemnitee advising
Indemnitee of the identity of the Independent Counsel so selected and certifying that the Independent Counsel so selected meets
the requirements of “Independent Counsel”
as defined in Section 2 of this Agreement. In either event, Indemnitee
or the Company, as the case may be, may, within ten (10) days
after such written notice of selection shall have been received, deliver to the Company or to Indemnitee, as the case may be, a
written objection to such selection; provided, however, that such objection may be asserted only on the ground that the Independent
Counsel so selected does not meet the requirements of “Independent
Counsel” as defined in Section 2
of this Agreement, and the objection shall set forth with particularity the factual basis of such assertion. Absent a proper and
timely objection, the person so selected shall act as Independent Counsel. If such written objection is so made and substantiated,
the Independent Counsel so selected may not serve as Independent Counsel unless and until such objection is withdrawn or a court
of competent jurisdiction has determined that such objection is without merit. If, within twenty (20) days after submission by
Indemnitee of a written request for indemnification pursuant to Section 11(b) hereof,
no Independent Counsel shall have been selected and not objected to, either the Company or Indemnitee may petition the Delaware
Court for resolution of any objection which shall have been made by the Company or Indemnitee to the other’s
selection of Independent Counsel and/or for the appointment as Independent Counsel of a person selected by the Delaware Court,
and the person with respect to whom all objections are so resolved or the person so appointed shall act as Independent Counsel
under Section 12(a) hereof.
Upon the due commencement of any judicial proceeding or arbitration pursuant to Section 14(a) of
this Agreement, Independent Counsel shall be discharged and
relieved of any further responsibility in such capacity (subject to the applicable standards of professional conduct then prevailing).

 

    	 	7	 

     

    

  

(c) The Company agrees to
pay the reasonable fees and expenses of Independent Counsel and to fully indemnify and hold harmless such Independent Counsel against
any and all Expenses, claims, liabilities and damages arising out of or relating to this Agreement or its engagement pursuant hereto.

 

13. PRESUMPTIONS AND
EFFECT OF CERTAIN PROCEEDINGS.

 

(a) In making a determination
with respect to entitlement to indemnification hereunder, the person, persons or entity making such determination shall presume
that Indemnitee is entitled to indemnification under this Agreement if Indemnitee has submitted a request for indemnification in
accordance with Section 11(b) of
this Agreement, and the Company shall have the burden of proof to overcome that presumption in connection with the making by any
person, persons or entity of any determination contrary to that presumption. Neither the failure of the Company (including by the
Disinterested Directors or Independent Counsel) to have made a determination prior to the commencement of any action pursuant to
this Agreement that indemnification is proper in the circumstances because Indemnitee has met the applicable standard of conduct,
nor an actual determination by the Company (including by the Disinterested Directors or Independent Counsel) that Indemnitee has
not met such applicable standard of conduct, shall be a defense to the action or create a presumption that Indemnitee has not met
the applicable standard of conduct.

 

(b) If the person, persons
or entity empowered or selected under Section 12 of this Agreement
to determine whether Indemnitee is entitled to indemnification shall not have made a determination within thirty (30) days after
receipt by the Company of the request therefor, the requisite determination of entitlement to indemnification shall, to the fullest
extent permitted by law, be deemed to have been made and Indemnitee shall be entitled to such indemnification, absent (i) a
misstatement by Indemnitee of a material fact, or an omission of a material fact necessary to make Indemnitee’s
statement not materially misleading, in connection with the request for indemnification, or (ii) a
final judicial determination that any or all such indemnification is expressly prohibited under applicable law; provided, however,
that such 30-day period may be extended for a reasonable time, not to exceed an additional fifteen (15) days, if the person, persons
or entity making the determination with respect to entitlement to indemnification in good faith requires such additional time for
the obtaining or evaluating of documentation and/or information relating thereto.

 

(c) The termination of any
Proceeding or of any claim, issue or matter therein, by judgment, order, settlement or conviction, or upon a plea of nolo contendere
or its equivalent, shall not (except as otherwise expressly provided in this Agreement) of itself adversely affect the right of
Indemnitee to indemnification or create a presumption that Indemnitee did not act in good faith and in a manner which Indemnitee
reasonably believed to be in or not opposed to the best interests of the Company or, with respect to any criminal Proceeding, that
Indemnitee had reasonable cause to believe that Indemnitee’s
conduct was unlawful.

 

(d) For purposes of any determination
of good faith, Indemnitee shall be deemed to have acted in
good faith if Indemnitee’s action is based on the records
or books of account of the Enterprise, including financial statements, or on information supplied to Indemnitee by the directors,
managers, or officers of the Enterprise in the course of their duties, or on the advice of legal counsel for the Enterprise, its
Board, any committee of the Board or any director, trustee, general partner, manager or managing member of the Enterprise, or on
information or records given or reports made to the Enterprise, its Board, any committee of the Board or any director, trustee,
general partner, manager or managing member of the Enterprise, by an independent certified public accountant or by an appraiser
or other expert selected by the Enterprise, its Board, any committee of the Board or any director, trustee, general partner, manager
or managing member. The provisions of this Section 13(d) shall
not be deemed to be exclusive or to limit in any way the other circumstances in which Indemnitee may be deemed or found to have
met the applicable standard of conduct set forth in this Agreement.

 

    	 	8	 

     

    

  

(e) The knowledge and/or
actions, or failure to act, of any other director, officer, trustee, partner, manager, managing member, fiduciary, agent or employee
of the Enterprise shall not be imputed to Indemnitee for purposes of determining the right to indemnification under this Agreement.

 

14. REMEDIES OF INDEMNITEE.

 

(a) In the event that (i) a
determination is made pursuant to Section 12 of this Agreement
that Indemnitee is not entitled to indemnification under this Agreement, (ii) advancement
of Expenses, to the fullest extent permitted by applicable law, is not timely made pursuant to Section 10
of this Agreement, (iii) no determination of entitlement to
indemnification shall have been made pursuant to Section 12(a) of
this Agreement within thirty (30) days after receipt by the Company of the request for indemnification, (iv) payment
of indemnification is not made pursuant to Section 5, 6, 7
or the last sentence of Section 12(a) of
this Agreement within ten (10) days after receipt by the Company
of a written request therefor, (v) a contribution payment
is not made in a timely manner pursuant to Section 8 of this
Agreement, (vi) payment of indemnification pursuant to Section 3
or 4 of this Agreement is not made within ten (10) days after
a determination has been made that Indemnitee is entitled to indemnification, or (vii) payment
to Indemnitee pursuant to any hold harmless or exoneration rights under this Agreement or otherwise is not made in accordance with
this Agreement, Indemnitee shall be entitled to an adjudication
by the Delaware Court to such indemnification, hold harmless, exoneration, contribution or advancement rights. Alternatively, Indemnitee,
at Indemnitee’s option, may seek an award in arbitration
to be conducted by a single arbitrator pursuant to the Commercial Arbitration Rules and Mediation Procedures of
the American Arbitration Association. Except as set forth herein, the provisions of Delaware law (without regard to its conflict
of laws rules) shall apply to any such arbitration. The Company shall not oppose Indemnitee’s
right to seek any such adjudication or award in arbitration.

 

(b) In the event that a determination
shall have been made pursuant to Section 12(a) of
this Agreement that Indemnitee is not entitled to indemnification, any judicial proceeding or arbitration commenced pursuant to
this Section 14 shall be conducted in all respects as a de
novo trial, or arbitration, on the merits and Indemnitee shall not be prejudiced by reason of that adverse determination.

 

(c) In any judicial proceeding
or arbitration commenced pursuant to this Section 14, Indemnitee
shall be presumed to be entitled to be indemnified, held harmless, and exonerated and to receive advancement of Expenses under
this Agreement and the Company shall have the burden of proving Indemnitee is not entitled to be indemnified, held harmless, and
exonerated and to receive advancement of Expenses, as the case may be, and the Company may not refer to or introduce into evidence
any determination pursuant to Section 12(a) of
this Agreement adverse to Indemnitee for any purpose. If Indemnitee commences a judicial proceeding or arbitration pursuant to
this Section 14, Indemnitee
shall not be required to reimburse the Company for any advances pursuant to Section 10
until a final determination is made with respect to Indemnitee’s
entitlement to indemnification (as to which all rights of appeal have been exhausted or lapsed).

 

(d) If a determination shall
have been made pursuant to Section 12(a) of
this Agreement that Indemnitee is entitled to indemnification, the Company shall be bound by such determination in any judicial
proceeding or arbitration commenced pursuant to this Section 14,
absent (i) a misstatement by Indemnitee of a material fact,
or an omission of a material fact necessary to make Indemnitee’s
statement not materially misleading, in connection with the request for indemnification, or (ii) a
prohibition of such indemnification under applicable law.

 

(e) The Company shall be
precluded from asserting in any judicial proceeding or arbitration commenced pursuant to this Section 14
that the procedures and presumptions of this Agreement are not valid, binding and enforceable and shall stipulate in any such court
or before any such arbitrator that the Company is bound by all the provisions of this Agreement.

 

    	 	9	 

     

    

  

(f) The Company shall indemnify
and hold harmless Indemnitee to the fullest extent permitted by law against all Expenses and, if requested by Indemnitee, shall
(within ten (10) days after the Company’s
receipt of such written request) pay to Indemnitee, to the fullest extent permitted by applicable law, such Expenses which are
incurred by Indemnitee in connection with any judicial proceeding or arbitration brought by Indemnitee: (i) to
enforce his or her rights under, or to recover damages for breach of, this Agreement or any other indemnification, hold harmless,
exoneration, advancement or contribution agreement or provision of the Charter, or the Bylaws now or hereafter in effect; or (ii) for
recovery or advances under any insurance policy maintained by any person for the benefit of Indemnitee, regardless of the outcome
and whether Indemnitee ultimately is determined to be entitled to such indemnification, hold harmless or exoneration right, advancement,
contribution or insurance recovery, as the case may be (unless such judicial proceeding or arbitration was not brought by Indemnitee
in good faith).

 

(g) Interest shall be paid
by the Company to Indemnitee at the legal rate under Delaware law for amounts which the Company indemnifies, holds harmless or
exonerates, or advances, or is obliged to indemnify, hold harmless or exonerate or advance for the period commencing with the date
on which Indemnitee requests indemnification, to be held harmless, exonerated, contribution, reimbursement or advancement of any
Expenses and ending with the date on which such payment is made to Indemnitee by the Company.

 

15. SECURITY. Notwithstanding
anything herein to the contrary, except for Section 27, to
the extent requested by Indemnitee and approved by the Board, the Company may at any time and from time to time provide security
to Indemnitee for the Company’s obligations hereunder through
an irrevocable bank line of credit, funded trust or other collateral. Any such security, once provided to Indemnitee, may not be
revoked or released without the prior written consent of Indemnitee.

 

16. NON-EXCLUSIVITY;
SURVIVAL OF RIGHTS; INSURANCE; SUBROGATION.

 

(a) The rights of Indemnitee
as provided by this Agreement shall not be deemed exclusive of any other rights to which Indemnitee may at any time be entitled
under applicable law, the Charter, the Bylaws, any agreement, a vote of stockholders or a resolution of directors, or otherwise.
No amendment, alteration or repeal of this Agreement or of any provision hereof shall limit or restrict any right of Indemnitee
under this Agreement in respect of any Proceeding (regardless of when such Proceeding is first threatened, commenced or completed)
or claim, issue or matter therein arising out of, or related to, any action taken or omitted by such Indemnitee in Indemnitee’s
Corporate Status prior to such amendment, alteration or repeal. To the extent that a change in applicable law, whether by statute
or judicial decision, permits greater indemnification, hold harmless or exoneration rights
or advancement of Expenses than would be afforded currently under the Charter, the Bylaws or this Agreement, it is the intent of
the parties hereto that Indemnitee shall enjoy by this Agreement the greater benefits so afforded by such change. No right or remedy
herein conferred is intended to be exclusive of any other right or remedy, and every other right and remedy shall be cumulative
and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise.
The assertion or employment of any right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment
of any other right or remedy.

 

(b) The DGCL, the Charter
and the Bylaws permit the Company to purchase and maintain insurance or furnish similar protection or make other arrangements including,
but not limited to, providing a trust fund, letter of credit, or surety bond (“Indemnification
Arrangements”) on behalf of Indemnitee against any
liability asserted against Indemnitee or incurred by or on behalf of Indemnitee or in such capacity as a director, officer, employee
or agent of the Company, or arising out of Indemnitee’s status
as such, whether or not the Company would have the power to indemnify Indemnitee against such liability under the provisions of
this Agreement or under the DGCL, as it may then be in effect. The purchase, establishment, and maintenance of any such Indemnification
Arrangement shall not in any way limit or affect the rights and obligations of the Company or of Indemnitee under this Agreement
except as expressly provided herein, and the execution and delivery of this Agreement by the Company and Indemnitee shall not in
any way limit or affect the rights and obligations of the Company or the other party or parties thereto under any such Indemnification
Arrangement.

 

(c) To the extent that the
Company maintains an insurance policy or policies providing liability insurance for directors, officers, trustees, partners, managers,
managing members, fiduciaries, employees, or agents of the Company or of any other Enterprise which such person serves at the request
of the Company, Indemnitee shall be covered by such policy
or policies in accordance with its or their terms to the maximum extent of the coverage available for any such director, officer,
trustee, partner, managers, managing member, fiduciary, employee or agent under such policy or policies. If, at the time the Company
receives notice from any source of a Proceeding as to which Indemnitee is a party or a participant (as a witness, deponent or otherwise),
the Company has director and officer liability insurance in effect, the Company shall give prompt notice of such Proceeding to
the insurers in accordance with the procedures set forth in the respective policies. The Company shall thereafter take all necessary
or desirable action to cause such insurers to pay, on behalf of Indemnitee, all amounts payable as a result of such Proceeding
in accordance with the terms of such policies.

 

    	 	10	 

     

    

  

(d) In the event of any payment
under this Agreement, the Company, to the fullest extent permitted by law, shall be subrogated to the extent of such payment to
all of the rights of recovery of Indemnitee, who shall execute all papers required and take all action necessary to secure such
rights, including execution of such documents as are necessary to enable the Company to bring suit to enforce such rights.

 

(e) The Company’s
obligation to indemnify, hold harmless, exonerate or advance Expenses hereunder to Indemnitee who is or was serving at the request
of the Company as a director, officer, trustee, partner, manager, managing member, fiduciary, employee or agent of any other Enterprise
shall be reduced by any amount Indemnitee has actually received as indemnification, hold harmless or exoneration payments or advancement
of expenses from such Enterprise. Notwithstanding any other provision of this Agreement to the contrary except for Section 27,
(i) Indemnitee shall have no obligation to reduce, offset,
allocate, pursue or apportion any indemnification, hold harmless, exoneration, advancement, contribution or insurance coverage
among multiple parties possessing such duties to Indemnitee prior to the Company’s
satisfaction and performance of all its obligations under this Agreement, and (ii) the
Company shall perform fully its obligations under this Agreement without regard to whether Indemnitee holds, may pursue or has
pursued any indemnification, advancement, hold harmless, exoneration, contribution or insurance coverage rights against any person
or entity other than the Company.

 

17. DURATION OF AGREEMENT.
All agreements and obligations of the Company contained herein shall continue during the period Indemnitee serves as a director
or officer of the Company or as a director, officer, trustee, partner, manager, managing member, fiduciary, employee or agent of
any other corporation, partnership, joint venture, trust, employee benefit plan or other Enterprise which Indemnitee serves at
the request of the Company and shall continue thereafter so long as Indemnitee shall be subject to any possible Proceeding (including
any rights of appeal thereto and any Proceeding commenced by Indemnitee pursuant to Section 14
of this Agreement) by reason of Indemnitee’s
Corporate Status, whether or not Indemnitee is acting in any such capacity at the time any liability or expense is incurred for
which indemnification or advancement can be provided under this Agreement.

 

18. SEVERABILITY.
If any provision or provisions of this Agreement shall be held to be invalid, illegal or unenforceable for any reason whatsoever:
(a) the validity, legality and enforceability of the remaining
provisions of this Agreement (including, without limitation, each portion of any Section, paragraph or sentence of this Agreement
containing any such provision held to be invalid, illegal or unenforceable, that is not itself invalid, illegal or unenforceable)
shall not in any way be affected or impaired thereby and shall remain enforceable to the fullest extent permitted by law; (b) such
provision or provisions shall be deemed reformed to the extent necessary to conform to applicable law and to give the maximum effect
to the intent of the parties hereto; and (c) to the fullest
extent possible, the provisions of this Agreement (including, without limitation, each portion of any Section, paragraph or sentence
of this Agreement containing any such provision held to be invalid, illegal or unenforceable, that is not itself invalid, illegal
or unenforceable) shall be construed so as to give effect to the intent manifested thereby.

 

19. ENFORCEMENT AND
BINDING EFFECT.

 

(a) The Company expressly
confirms and agrees that it has entered into this Agreement and assumed the obligations imposed on it hereby in order to induce
Indemnitee to serve as a director, officer or key employee of the Company, and the Company acknowledges that Indemnitee is relying
upon this Agreement in serving as a director, officer or key employee of the Company.

 

    	 	11	 

     

    

  

(b) Without limiting any
of the rights of Indemnitee under the Charter or Bylaws as they may be amended from time to time, this Agreement constitutes the
entire agreement between the parties hereto with respect to the subject matter hereof and supersedes all prior agreements and understandings,
oral, written and implied, between the parties hereto with respect to the subject matter hereof.

 

(c) The indemnification,
hold harmless, exoneration and advancement of expenses rights provided by or granted pursuant to this Agreement shall be binding
upon and be enforceable by the parties hereto and their respective successors and assigns (including any direct or indirect successor
by purchase, merger, consolidation or otherwise to all or substantially all of the business and/or assets of the Company), shall
continue as to an Indemnitee who has ceased to be a director, officer, employee or agent of the Company or a director, officer,
trustee, general partner, manager, managing member, fiduciary, employee or agent of any other Enterprise at the Company’s
request, and shall inure to the benefit of Indemnitee and Indemnitee’s
spouse, assigns, heirs, devisees, executors and administrators and other legal representatives.

 

(d) The Company shall require
and cause any successor (whether direct or indirect by purchase, merger, consolidation or otherwise) to all, substantially all
or a substantial part, of the business and/or assets of the Company, by written agreement in form and substance satisfactory to
Indemnitee, expressly to assume and agree to perform this Agreement in the same manner and to the same extent that the Company
would be required to perform if no such succession had taken place.

 

(e) The Company and Indemnitee
agree herein that a monetary remedy for breach of this Agreement, at some later date, may be inadequate, impracticable and difficult
of proof, and further agree that such breach may cause Indemnitee irreparable harm. Accordingly, the parties hereto agree that
Indemnitee may, to the fullest extent permitted by law, enforce this Agreement by seeking, among other things, injunctive relief
and/or specific performance hereof, without any necessity of showing actual damage or irreparable harm and that by seeking injunctive
relief and/or specific performance, Indemnitee shall not be
precluded from seeking or obtaining any other relief to which Indemnitee may be entitled. The Company and Indemnitee further agree
that Indemnitee shall, to the fullest extent permitted by law, be entitled to such specific performance and injunctive relief,
including temporary restraining orders, preliminary injunctions and permanent injunctions, without the necessity of posting bonds
or other undertaking in connection therewith. The Company acknowledges that in the absence of a waiver, a bond or undertaking may
be required of Indemnitee by a court of competent jurisdiction. The Company hereby waives any such requirement of such a bond or
undertaking to the fullest extent permitted by law.

 

20. MODIFICATION AND
WAIVER. No supplement, modification or amendment of this Agreement shall be binding unless executed in writing by the Company
and Indemnitee. No waiver of any of the provisions of this Agreement shall be deemed or shall constitute a waiver of any other
provisions of this Agreement nor shall any waiver constitute a continuing waiver.

 

21. NOTICES. All
notices, requests, demands and other communications under this Agreement shall be in writing and shall be deemed to have been duly
given (i) if delivered by hand and receipted for by the party
to whom said notice or other communication shall have been directed, or (ii) mailed
by certified or registered mail with postage prepaid, on the third (3rd) business day after the date on which it is so mailed:

 

(a) If to Indemnitee, at
the address indicated on the signature page of this Agreement,
or such other address as Indemnitee shall provide in writing to the Company.

 

(b) If to the Company, to:

 

B. Riley Principal Merger Corp.

299 Park Avenue, 21st Floor

New York, New York 10171

Attention: Daniel Shribman

 

With a copy, which shall not constitute
notice, to

 

Winston & Strawn LLP

200 Park Avenue

New York, New York 10166

Attn: Joel Rubinstein

Fax No.: (212) 294-6700

 

or to any other address as may have been furnished
to Indemnitee in writing by the Company.

 

    	 	12	 

     

    

  

22. APPLICABLE LAW AND
CONSENT TO JURISDICTION. This Agreement and the legal relations among the parties shall be governed by, and construed and enforced
in accordance with, the laws of the State of Delaware, without regard to its conflict of laws rules. Except with respect to any
arbitration commenced by Indemnitee pursuant to Section 14(a) of
this Agreement, to the fullest extent permitted by law, the Company and Indemnitee hereby irrevocably and unconditionally: (a) agree
that any action or proceeding arising out of or in connection with this Agreement shall be brought only in the Delaware Court and
not in any other state or federal court in the United States of America or any court in any other country; (b) consent
to submit to the exclusive jurisdiction of the Delaware Court for purposes of any action or proceeding arising out of or in connection
with this Agreement; (c) waive any objection to the laying
of venue of any such action or proceeding in the Delaware Court; and (d) waive,
and agree not to plead or to make, any claim that any such action or proceeding brought in the Delaware Court has been brought
in an improper or inconvenient forum, or is subject (in whole or in part) to a jury trial. To the fullest extent permitted by law,
the parties hereby agree that the mailing of process and other papers in connection with any such action or proceeding in the manner
provided by Section 21 or in such other manner as may be permitted
by law, shall be valid and sufficient service thereof.

 

23. IDENTICAL COUNTERPARTS.
This Agreement may be executed in one or more counterparts, each of which shall for all purposes be deemed to be an original but
all of which together shall constitute one and the same Agreement. Only one such counterpart signed by the party against whom enforceability
is sought needs to be produced to evidence the existence of this Agreement.

 

24. MISCELLANEOUS.
Use of the masculine pronoun shall be deemed to include usage of the feminine pronoun where appropriate. The headings of the paragraphs
of this Agreement are inserted for convenience only and shall not be deemed to constitute part of this Agreement or to affect the
construction thereof.

 

25. PERIOD OF LIMITATIONS.
No legal action shall be brought and no cause of action shall be asserted by or in the right of the Company against Indemnitee, Indemnitee’s
spouse, heirs, executors or personal or legal representatives after the expiration of two years from the date of accrual of such
cause of action, and any claim or cause of action of the Company shall be extinguished and deemed released unless asserted by the
timely filing of a legal action within such two-year period; provided, however, that if any shorter period of limitations is otherwise
applicable to any such cause of action such shorter period shall govern.

 

26. ADDITIONAL ACTS.
If for the validation of any of the provisions in this Agreement any act, resolution, approval or other procedure is required to
the fullest extent permitted by law, the Company undertakes to cause
such act, resolution, approval or other procedure to be affected or adopted in a manner that will enable the Company to fulfill
its obligations under this Agreement.

 

27. WAIVER OF CLAIMS
TO TRUST ACCOUNT. Notwithstanding anything contained herein to the contrary, Indemnitee hereby agrees that it does not have
any right, title, interest or claim of any kind (each, a “Claim”)
in or to any monies in the trust account established in connection with the Company’s
initial public offering for the benefit of the Company and holders of shares issued in such offering (the “Trust
Account”), and hereby waives any Claim it may have
in the future as a result of, or arising out of, any services provided to the Company and will not seek recourse against such Trust
Account for any reason whatsoever. Accordingly, Indemnitee acknowledges and agrees that any indemnification provided hereto will
only be able to be satisfied by the Company if (i) the Company has sufficient funds outside of the Trust Account to satisfy its
obligations hereunder or (ii) the Company consummates an initial business combination.

 

28. MAINTENANCE OF INSURANCE.
The Company shall use commercially reasonable efforts to obtain and maintain in effect during the entire period for which the Company
is obligated to indemnify the Indemnitee under this Agreement, one or more policies of insurance with reputable insurance companies
to provide the officers/directors of the Company with coverage for losses from wrongful acts and omissions and to ensure the Company’s
performance of its indemnification obligations under this Agreement. 
The Indemnitee shall be covered by such policy or policies in accordance with its or their terms to the maximum extent of the coverage
available for any such director or officer under such policy or policies. 
In all such insurance policies, the Indemnitee shall be named as an insured in such a manner as to provide the Indemnitee with
the same rights and benefits as are accorded to the most favorably insured of the Company’s
directors and officers.

 

[Signature Page Follows]

 

    	 	13	 

     

    

  

IN WITNESS WHEREOF, the parties hereto have caused this Indemnity
Agreement to be signed as of the day and year first above written.

 

	 	B. RILEY PRINCIPAL MERGER CORP.

 

	 	By:	 
	 	 	Name: 
	 	 	Title:   

 

	 	INDEMNITEE

 

	 	By:	 
	 	 	Name: 
	 	 	Address:

 

[Signature Page to Indemnity Agreement]

 

    	 	14

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