Document:

Exhibit 10.2

 

Execution Version

 

STOCK OPTION ACKNOWLEDGEMENT AND ROLLOVER
AGREEMENT

 

September 7, 2018

Concrete Pumping Holdings Acquisition Corp.

c/o Industrea Acquisition Corp.

28 W. 44th Street, Suite 501

New York, New York 10036

Attention: Tariq Osman

Email: tosman@argandequity.com

 

Industrea Alexandria LLC

28 W. 44th Street, Suite 501

New York, New York 10036

Attention: Tariq Osman

Email: tosman@argandequity.com

 

Ladies and Gentlemen:

 

Reference is made to the
Agreement and Plan of Merger dated as of the date hereof (as amended, modified or supplemented from time to time, the “Merger
Agreement”), by and among Concrete Pumping Holdings Acquisition Corp., a Delaware corporation and wholly owned subsidiary
of Industrea (“Newco”), Industrea Acquisition Corp., a Delaware corporation (“Industrea”),
Concrete Pumping Intermediate Acquisition Corp., a Delaware corporation and a wholly owned subsidiary of Newco (“Concrete
Parent”), Concrete Pumping Merger Sub Inc., a Delaware corporation and a wholly owned subsidiary of Concrete Parent (“Concrete
Merger Sub”), Industrea Acquisition Merger Sub Inc., a Delaware corporation and a wholly owned subsidiary of Newco (“Industrea
Merger Sub”), Concrete Pumping Holdings, Inc., a Delaware corporation (the “Company”) and PGP Investors,
LLC, a Delaware limited liability company, in its capacity as the initial Holder Representative thereunder, pursuant to which,
among other things, and on the terms and subject to the conditions of the Merger Agreement, Concrete Merger Sub will merge with
and into the Company, with the Company surviving the merger and the Company will become an indirect wholly-owned subsidiary of
Newco (the “Merger”). Capitalized terms used herein and not defined herein shall have the meanings set forth
in the Merger Agreement.

 

		1.	Conversion of Rollover ISOs and Contribution of Rollover Shares.

 

The closing of the transactions
contemplated by this Agreement (the “Rollover Closing”) shall take place on the Closing Date immediately prior
to the earlier to occur of the Concrete Effective Time and the Industrea Effective Time.

 

     

     

    

 

At the Rollover Closing,
the undersigned (the “Rollover Holder”) hereby acknowledges and agrees that, on the terms and subject to the
conditions of this Rollover Agreement (this “Agreement”), (x) a number of tax-qualified “incentive stock
options” held by the Rollover Holder and outstanding immediately prior to the Rollover Closing covering shares of Company
common stock (“Common Stock”) (such options, the “ISOs”) shall convert into options to acquire
Newco Common Shares that are intended to constitute tax-qualified “incentive stock options” for U.S. federal tax purposes
(each, a “Converted Option”) and (y) to the extent necessary to result in an aggregate conversion and/or contribution
equal to the dollar amount set forth opposite such Rollover Holder’s name on Exhibit A (such amount, the “Stock
and Option Rollover Amount”) (taking into consideration any election under Section 1(a) below to rollover additional
Rollover Shares (as defined below) in lieu of converting ISOs), the Rollover Holder shall contribute to Newco of a number of Preferred
Shares held by such Rollover Holder (such Rollover Holder’s “Rollover Shares”), which conversion and/or
contributions shall be effected as follows:

 

(a)       If
such Rollover Holder holds any ISOs, by the automatic conversion of ISOs covering a number of shares of Common Stock (not to exceed
the total number of ISOs held by such Rollover Holder) equal to (i) the Stock and Option Rollover Amount, divided by (ii)
(A) the Cash Per Fully-Diluted Common Share (assuming, for purposes of determining the Cash Per Fully-Diluted Common Share, that
the Aggregate Rollover Amount was $0), minus (B) the applicable exercise price per share of such Rollover ISO (such difference,
the “Option Spread” and such ISOs, the “Rollover ISOs”) into Converted Options; provided,
that to extent that any such Rollover Holder holds any Preferred Shares, such Rollover Holder may, by irrevocable written notice
to Newco and the Company (the “Election Notice”) no less than ten (10) Business Days prior to the anticipated
Closing Date, elect to satisfy any portion of the Stock and Option Rollover Amount otherwise to be satisfied pursuant to this Section
1(a) by the contribution pursuant to Section 1(c) of a number of Rollover Shares (the “Elected Rollover Shares”)
equal to the quotient of (x) the difference obtained by subtracting (I) the Stock and Option Rollover Amount, minus (II) the Aggregate
Option Spread in respect of all Rollover ISOs (if any) converted into Converted Options pursuant to this Section 1(a), minus (III)
the Rollover Share Amount determined in accordance with Section 1(b) below (if any) (the difference obtained under this clause
(x), the “Elected Rollover Share Amount”), divided by (y) the Cash Per Fully-Diluted Preferred Share
(assuming, for purposes of determining the Cash Per Fully-Diluted Preferred Share amount, that the Aggregate Rollover Amount was
$0). For purposes of this Agreement, the aggregate Option Spread with respect to all Rollover ISOs held by a Rollover Holder and
converted into Converted Options pursuant to this Section 1(a) shall be referred to as the “Aggregate Option Spread”.

 

(b)       If
such Rollover Holder’s Aggregate Option Spread (taken together with the Elected Share Rollover Amount) is less than the Stock
and Option Rollover Amount then, in addition to the conversion described in Section 1(a), such Rollover Holder shall contribute
to Newco, in addition to the Elected Rollover Shares (if any), a number of Rollover Shares held by such Rollover Holder equal to
(i) (A) Stock and Option Rollover Amount, minus (B) the Aggregate Option Spread, minus (C) the Elected Share Rollover Amount (the
amount obtained under this clause (i), the “Rollover Share Amount”), divided by (ii) the Cash Per Fully-Diluted
Preferred Share (assuming, for purposes of determining the Cash Per Fully-Diluted Preferred Share amount, that the Aggregate Rollover
Amount was $0).

 

(c)       Additionally,
in the event that such Rollover Holder delivers an Election Notice pursuant to the proviso in Section 1(a) to rollover any Elected
Rollover Shares, then in substitution of the conversion described in Section 1(a) with respect to the portion of the Stock and
Option Rollover Amount set forth in the Election Notice, such Rollover Holder shall contribute to Newco a number of Elected Rollover
Shares equal to (i) the Elected Share Rollover Amount, divided by (ii) the Cash Per Fully-Diluted Preferred Share (assuming,
for purposes of determining the Cash Per Fully-Diluted Preferred Share amount, that the Aggregate Rollover Amount was $0).

 

     

     

    

 

(d)       In
exchange for the contribution of such Rollover Holder’s Rollover Shares (including the Elected Rollover Shares, if applicable)
pursuant to this Agreement, Newco shall issue and deliver to such Rollover Holder a number of Newco Common Shares (rounded up to
the nearest whole share) equal to (i) the sum of (A) such Rollover Holder’s Stock Rollover Amount plus (B) such Rollover
Holder’s Elected Rollover Share Amount (if any) divided by (ii) $10.20 (the “Issued Newco Shares”).

 

(e)       Notwithstanding
anything herein to the contrary, the Rollover Holder may make an election to increase his or her Stock and Option Rollover Amount
by delivering an irrevocable written notice to Newco and the Company (the “Additional Rollover Amount Notice”)
no less than ten (10) Business Days prior to the anticipated Closing Date. Such Additional Rollover Amount Notice shall (i) certify
as to the accuracy of representations and warranties of such Rollover Holder in this Agreement (and with respect to the representation
in item (III)(4) on Annex A (the “Ownership Rep”), as to the accuracy of such representation as of the date
of the delivery of the Additional Rollover Amount Notice, in addition to as of the date hereof; provided, that in the event
of any inaccuracy in the Ownership Rep arising resulting from any event occurring between the date hereof and the delivery of the
Additional Rollover Amount Notice, such Rollover Holder shall deliver and updated version Exhibit B hereto reflecting the occurrence
of such event together with the Additional Rollover Amount Notice), (ii) state the aggregate Option Spread value of or number of
shares subject to (and per-share exercise price of) additional ISOs, if any, the Rollover Holder desires to convert into additional
Converted Options pursuant to Section 1(a) above and (iii) state the aggregate value or number of additional Preferred Shares,
if any, the Rollover Holder desires to contribute to Newco in exchange for additional Issued Newco Shares pursuant to Section 1(b)
above, which, in case of clauses (ii) and (iii), shall be effected in the same manner and in the same order of priority as set
forth in Sections 1(a), (b), (c) and (d) above. All such additional ISOs to be converted into Converted Options and all such additional
Preferred Shares to be contributed to Newco in exchange for Issued Newco Shares shall be included in the definitions of Rollover
ISOs (as defined below) and Rollover Shares, respectively, for all purposes of this Agreement. For purposes of this Agreement,
the Rollover Holder’s Aggregate Option Spread shall take into account the aggregate Option Spread of all additional Rollover
ISOs the Rollover Holder elects to convert into Converted Options pursuant to this Section 1(e).

 

For the avoidance of doubt,
except as set forth herein, the Rollover Holder shall not be entitled to receive any portion of the Merger Consideration for the
Rollover Holder’s Rollover Shares, including the Elected Rollover Shares (if any) or Rollover ISOs.

 

		2.	Converted Options.

 

Each Converted Option shall:
(i) cover a number of Newco Common Shares determined by multiplying the number of shares of Common Stock into which the Rollover
ISO is exercisable immediately prior to the Effective Time by the Exchange Ratio (as defined in the Merger Agreement), rounded
down to the nearest whole share, (ii) have a per Newco Common Share exercise price equal to the quotient obtained by dividing the
applicable per share exercise price of the Rollover ISO by the Exchange Ratio, rounded up to the nearest whole cent, (iii) be fully
vested, (iv) have a remaining term equal in length to the remaining term of the corresponding Rollover Option and (v) have the
other terms and conditions that applied immediately prior to the Closing to the corresponding Rollover ISO. The parties hereto
acknowledge and agree that the adjustments in connection with the conversion of the Rollover ISOs to Converted Options shall comply
with and be performed in a manner consistent in all respects with the requirements of Section 424(a) of the Internal Revenue Code
of 1986, as amended (the “Code”). The Rollover Holder acknowledges and agrees that, following the Rollover Closing,
the Rollover Holder shall have no further right, interest, entitlement or claim in or with respect to the Rollover ISOs. For purposes
of this Agreement, the conversion described in this paragraph is referred to herein as the “ISO Conversion.”

 

     

     

    

 

In addition to the ISO
Conversion, each Rollover Holder shall have the right to receive: (A) such Rollover Holder’s Option Pro-Rata Share in respect
of its Converted Option of any positive Adjustment Amount payable in cash in accordance with Section 3.4(d) of the Merger
Agreement, (B) such Rollover Holder’s Escrow Percentage in respect of its Converted Option of any distributions of Escrow
Funds by the Escrow Agent to the Exchange Agent in accordance with the terms of the Escrow Agreement, and (C) such Rollover Holder’s
portion in respect of its Converted Option of any Tax Refunds in accordance with Section 8.6(g) of the Merger Agreement.

 

The ISO Conversion and
the Rollover Holder’s receipt of the Converted Options and amounts described above are subject to (i) the receipt by the
Company of this Agreement signed by the Rollover Holder, (ii) the representations and warranties of the Rollover Holder set forth
in Annex A being true and correct, (iii) the Rollover Holder having not exercised the Rollover Holder’s Rollover ISOs,
in whole or in part, prior to the Rollover Closing or the Effective Time of the Merger, and (iv) the Rollover Holder having not
breached or violated any of its covenants or agreements set forth herein and the exhibits and annexes hereto.

 

The conversion of the Rollover
ISOs into the Converted ISOs in accordance with the terms of this Agreement shall comply with and be treated as a tax-free conversion
of the Rollover ISOs as prescribed by and in a manner consistent in all respects with the requirements of Section 424(a) of the
Code. From time to time after the Rollover Closing, without further consideration, if requested by the Rollover Holder in writing,
Newco shall promptly provide the Rollover Holder with a duly executed statement pursuant to Treasury Regulation Section 1.897-2(h)
informing such Rollover Holder whether or not the Issued Newco Shares issued and delivered to such Rollover Holder constitute “United
States real property interests” (and shall comply with the related notice requirements in Treasury Regulation Section 1.897-2(h)(2)).

 

		3.	Issued Newco Shares.

 

The Issued Newco Common
Shares will be delivered by Newco to the Rollover Holder in book entry form, free and clear of any Liens or other restrictions
(other than those arising under the Stockholders Agreement or state or federal securities laws), in the name of each such Rollover
Holder (or its nominee in accordance with its delivery instructions) or to a custodian designated by such Rollover Holder, as applicable.

 

In exchange for the contribution
of the Rollover Holder’s Rollover Shares to Newco, in addition to the Issued Newco Shares described above, the Rollover Holder
shall have the right to receive: (A) such Rollover Holder’s Fully-Diluted Percentage in respect of its Rollover Shares of
any positive Adjustment Amount payable in cash in accordance with Section 3.4(d) of the Merger Agreement, (B) such Rollover Holder’s
Escrow Percentage in respect of its Rollover Shares of any distributions of Escrow Funds by the Escrow Agent to the Exchange Agent
in accordance with the terms of the Escrow Agreement, and (C) such Rollover Holder’s portion in respect of its Rollover Shares
of any Tax Refunds in accordance with Section 8.6(g) of the Merger Agreement.

 

     

     

    

 

At or prior to the Rollover
Closing, the Rollover Holder shall deliver to Newco (x) a duly executed certificate substantially in the form of Annex H to the
Merger Agreement, and (y) all of the certificates for the Rollover Shares (if certificated), fully endorsed for transfer in blank.

 

The contribution of the
Rollover Shares by the Rollover Holder to Newco in exchange for the consideration set forth herein (taken together with taken together
with the Industrea Merger, the Argand Equity Investment and any other relevant contributions to Newco) in accordance with the terms
of this Agreement, and the subsequent contribution of the Rollover Shares by Newco to Concrete Parent, are each intended to be
treated as contributions governed by Section 351 of the Code, and each of Newco and the Rollover Holder shall report such transactions
consistently with such intent.

 

		4.	Stockholders Agreement

 

At or prior to the Rollover
Closing, each of the Rollover Holder, Industrea, Industrea Alexandria LLC and Newco shall execute and deliver to the other party
a Stockholders Agreement in the form attached hereto as Exhibit C (the “Stockholders Agreement”).

 

The consummation of the
transactions described herein is subject to and conditioned upon (i) all conditions to the Mergers set forth in Article IX of the
Merger Agreement having been satisfied not later than the time of the Rollover Closing or, to the extent not satisfied, having
been waived by the Person or Persons entitled to waive any such condition, (ii) no suspension of the qualification of the Issued
Newco Shares issued pursuant hereto for offering or sale or trading in any jurisdiction, or initiation or threatening of any proceedings
for any of such purposes, shall have occurred, (iii) the concurrent funding of the Debt Financing (in accordance with the terms
of the Debt Commitment Letters) and the Equity Financing (in accordance with the terms of the Subscription Agreements). This Agreement
and the parties’ rights and obligations hereunder will automatically terminate and become null and void, and no party shall
have any rights or obligations hereunder, upon the termination of the Merger Agreement.

 

The Rollover Holder hereby
(i) makes the representations and warranties, set forth in Annex A hereto, and (ii) agrees that it will become a party
to, and be bound by, the Stockholders Agreement at the Rollover Closing in accordance with its terms.

 

Newco hereby (i) makes
the representations and warranties set forth in Annex B hereto, and (ii) agrees that it will become a party to, and
be bound by, the Stockholders Agreement at the Rollover Closing in accordance with its terms.

 

     

     

    

 

The provisions of this
Agreement, the Merger Agreement and the Stockholders Agreement contain the entire agreement of the parties hereto with respect
to the subject matter hereof and supersede any prior written or oral agreements or understandings of the parties hereto with respect
to the subject matter hereof. This Agreement is intended for the benefit of the parties hereto and their respective successors
and permitted assigns and is not for the benefit of, nor may any provision hereof be enforced by, any other person, except as otherwise
set forth in the immediately following sentence. Without limiting any other rights of the Company, this Agreement may be enforced
by the Company to cause the consummation of the contribution of the Rollover Shares and Rollover ISOs and the issuance and delivery
of the Rollover Shares and Rollover ISOS in accordance with the terms hereof and, accordingly, the Company shall be a third party
beneficiary hereof and entitled to an injunction or injunctions to prevent breaches or threatened breaches of this Agreement by
the parties hereto.

 

This Agreement may be executed
by facsimile or via email as a portable document format (.pdf) and in any number of counterparts, and each such counterpart shall
be deemed to be an original instrument, but all such counterparts together shall constitute one agreement. This Agreement shall
be binding upon and inure to the benefit of the parties hereto and their respective successors and assigns, but shall not be assignable
by any party hereto without the prior written consent of the other parties.

 

This Agreement, or any
term or condition hereof, may be modified or waived only by a separate writing signed by each of the parties hereto. No provision
of this Agreement may be amended, modified or waived without the prior written consent of the Company if such amendment, modification
or waiver (i) reduces the number of Rollover Shares and/or Rollover ISOs, or (ii) imposes new or additional conditions or otherwise
expands, amends or modifies any of the conditions to the Closing in a manner that would reasonably be expected to (x) materially
impair or delay the Closing (or satisfaction of the conditions to the Closing) or (y) adversely affect the ability of Newco or
Industrea to enforce its rights against under this Agreement or any of the other definitive agreements with respect thereto. Each
of the parties hereto waives any right it may have to trial by jury in respect of any litigation based on, arising out of, under
or in connection with this Agreement or any course of conduct, course of dealing, verbal or written statement or action of any
party hereto.

 

This Agreement, and all
claims or causes of action based upon, arising out of, or related to this Agreement or the transactions contemplated hereby, shall
be governed by, and construed in accordance with, the Laws of the State of Delaware, without giving effect to principles or rules
of conflict of laws to the extent such principles or rules would require or permit the application of Laws of another jurisdiction.

 

The parties hereto agree
that they have been represented by counsel during the negotiation, drafting, preparation and execution of this Agreement and, therefore,
waive the application of any law or rule of construction providing that ambiguities in an agreement or other document will be construed
against the party drafting such agreement or document.

 

The Rollover Holder acknowledges
that Industrea is a blank check company with the powers and privileges to effect a merger, asset acquisition, reorganization or
similar business combination involving Industrea and one or more businesses or assets. The Rollover Holder further acknowledges
that, as described in Industrea’s prospectus relating to its initial public offering dated July 26, 2017 (the “Prospectus”)
available at www.sec.gov, substantially all of Industrea’s assets consist of the cash proceeds of Industrea’s initial
public offering and private placements of its securities, and substantially all of those proceeds have been deposited in a trust
account (the “Trust Account”) for the benefit of Industrea, its public stockholders and the underwriters of
Industrea’s initial public offering. The Rollover Holder acknowledges that, prior to the Closing, it does not have any right,
title, interest or any claim of any kind he have or may have in the future, in or to any monies held in the Trust Account, including,
without limitation, any claim for indemnification and hereby waives any claim for monies in the Trust Account it may have as a
result of, or arising out of, this or arising out of, this Agreement and the transactions contemplated hereby or any other transactions
contemplated amongst the Rollover Holders, the Company, Newco, Industrea, Concrete Parent, Concrete Merger Sub and Industrea Merger
Sub prior to the Closing and, prior to the Closing, will not seek recourse against the Trust Account for any reason whatsoever..

 

     

     

    

 

Any party hereto who is
domiciled in a state that has adopted the community property system shall also cause his or her spouse, if any, to execute a spousal
consent substantially in form attached hereto as Annex D simultaneously with the execution herewith.

 

The Annexes and Exhibits
to this Agreement are incorporated herein and shall be deemed a part of this Agreement in their entirety.

 

[Signature Page Follows]

 

     

     

    

 

Please indicate your agreement with the foregoing
by signing in the space provided below.

 

	 	Sincerely,
	 	 	 
	 	ROLLOVER HOLDER:
	 	 	 
	 	/s/ Don M. Heinz, Jr.
	 	Don M. Heinz, Jr.
	 	 	 
	 	Address:	          
	 	 	 
	 	 	 
	 	 	 
	 	/s/ William L. Henshaw
	 	William L. Henshaw
	 	 	 
	 	Address:	 
	 	 	 
	 	 	 
	 	 	 
	 	/s/ John G. Hudek
	 	John G. Hudek
	 	 	 
	 	Address:	 
	 	 	 
	 	 	 
	 	 	 
	 	/s/ Iain Humphries
	 	Iain Humphries
	 	 	 
	 	Address:	 
	 	 	 
	 	 	 
	 	 	 
	 	/s/ Robert Keith Joiner
	 	Robert Keith Joiner
	 	 	 
	 	Address:	 
	 	 	 
	 	 	 

 

[Signature Page to Rollover Agreement]

 

     

     

    

	 	/s/ Jeffrey D. LaBounty
	 	Jeffrey D. LaBounty
	 	 	 
	 	Address:	          
	 	 	 
	 	 	 
	 	 	 
	 	/s/ Terry McConnell
	 	Terry McConnell
	 	 	 
	 	Address:	 
	 	 	 
	 	 	 
	 	 	 
	 	/s/ Scott C. Rochel
	 	Scott Rochel
	 	 	 
	 	Address:	 
	 	 	 
	 	 	 
	 	 	 
	 	/s/ Timothy W. Schieck
	 	Timony Schieck
	 	 	 
	 	Address:	 
	 	 	 
	 	 	 
	 	 	 
	 	/s/ Robert Seals
	 	Robert Seals 
	 	 	 
	 	Address:	 
	 	 	 
	 	 	 

 

     

     

    

	 	/s/ Jeffrey Switzer
	 	Jeffrey Switzer
	 	 	 
	 	Address:	         
	 	 	 
	 	 	 
	 	 	 
	 	/s/ Dave Tinkle
	 	Dave Tinkle
	 	 	 
	 	Address:	 
	 	 	 
	 	 	 
	 	 	 
	 	/s/ Randal A. Waterman
	 	Randal A. Waterman
	 	 	 
	 	Address:	 
	 	 	 
	 	 	 
	 	 	 
	 	/s/ Gregg A. White
	 	Gregg A. White
	 	 	 
	 	Address:	 
	 	 	 
	 	 	 
	 	 	 
	 	/s/ Bruce F. Young
	 	Bruce F. Young
	 	 	 
	 	Address:	 
	 	 	 
	 	 	 

  

     

     

    

  

	Accepted and Agreed:	 
	 	 	 
	NEWCO:	 
	 	 	 
	Concrete Pumping Holdings Acquisition Corp.	 
	 	 	 
	By:	/s/ Tariq Osman	 
	 	Name:   Tariq Osman	 
	 	Title:  President	 
	 	 	 
	INDUSTREA:	 
	 	 	 
	Industrea Acquisition Corp.	 
	 	 	 
	By:	/s/ Tariq Osman	 
	 	Name:  Tariq Osman	 
	 	Title:  Executive Vice President	 

 

     

     

    

  

Exhibit A

 

STOCK AND OPTION ROLLOVER AMOUNT

 

	Rollover Holder	 	Stock and Option
    Rollover Amount
	 	 	 

 

     

     

    

 

Exhibit B

 

OWNERSHIP OF COMPANY STOCK AND OPTIONS

 

	Rollover Holder	 	Shares of Company Stock
	 	 	[________] shares of Common Stock
	 	 	[________] shares of Preferred Stock

 

	Rollover Holder	 	Number of Options to
 Acquire Shares of
 Common Stock	 	Date of Grant	 	Exercise Price	 
		 		 	February 6, 2015	 	$	2.48	 
	 	 	 	 	March 8, 2017	 	$	17.50	 

 

     

     

    

  

Exhibit C

 

STOCKHOLDERS AGREEMENT

 

This Stockholders
Agreement (this “Agreement”) is entered into on September 7, 2018, by and among Concrete Pumping Holdings,
Inc. (f/k/a Concrete Pumping Holdings Acquisition Corporation, a Delaware corporation (the “Company”) and the
undersigned parties listed on the signature pages hereto (each, an “Investor” and, collectively, the “Investors”).
Capitalized terms used in this Agreement have the meanings given to them in Section 1.01.

 

RECITALS

 

WHEREAS, reference
is made to that certain Agreement and Plan of Merger, by and among the Company, Industrea Acquisition Corp. (“Industrea”),
Concrete Pumping Intermediate Acquisitions Corp., Concrete Pumping Merger Sub Inc., Industrea Acquisition Merger Sub Inc., and
Concrete Pumping Holdings, Inc. (“CPH”), and PGP Investors, LLC solely in its capacity as the initial Holder
Representative thereunder, dated September 7, 2018 (the “Merger Agreement”), which provides for the business
combination among the Company, Industrea and CPH (the “Business Combination”), pursuant to which each of CPH
and Industrea will be acquired by the Company and become wholly owned subsidiaries of the Company;

 

WHEREAS, pursuant
to the terms of those certain Rollover Agreements, each dated September 7, 2018 (the “Rollover Agreements”),
by and between the Company and the CPH equity owners parties thereto (collectively with the UK Rollover Investors (as defined below),
the “Rollover Investors”), in connection with the consummation of the Business Combination, the Company will
issue shares of its common stock, par value $0.0001 per share (“Company Common Stock”) to the Rollover Investors;

 

WHEREAS, pursuant
to the terms of (i) that certain Share Purchase Agreement dated September 7, 2018 (the “UK Share Purchase Agreement”),
by and between Lux Concrete Holdings II S.á r.l. (“Lux II”) and the Vendors parties thereto (the “UK
Rollover Investors”), and (ii) those certain Put and Call Options (the “UK Put/Call Agreement”) by
and among the UK Rollover Investors, Lux II, CPH, the Company and the other Subsidiaries of CPH and the Company named therein,
in connection with the consummation of the Business Combination, the Company will issue shares of Company Common Stock to the UK
Rollover Investors;

 

WHEREAS, pursuant
to the Merger Agreement the Company will issue shares of Company Common Stock to the holders of Industrea common stock on a one-for-one
basis in exchange for their shares of Industrea common stock;

 

WHEREAS, prior to
Industrea’s initial public offering (the “IPO”), Industrea Alexandria LLC (the “Sponsor”)
purchased an aggregate of 5,750,000 shares of Class B common stock, par value $0.0001 per share, of Industrea (the “Founder
Shares”), and subsequently transferred a total of 28,750 shares of Founder Shares and 277,500 Private Placement Warrants
(as define to each of Industrea’s five independent directors (collectively with the Sponsor, the “Initial Investors”);

 

     

     

    

 

WHEREAS, the Founder
Shares are convertible into shares of Class A common stock, par value $0.0001 per share, of Industrea (“Class A Common
Stock”) on the terms provided in Industrea’s second amended and restated certificate of incorporation;

 

WHEREAS, the Sponsor
purchased an aggregate of 11,100,000 warrants exercisable for shares of Class A Common Stock in a private placement that was completed
simultaneously with the consummation of the IPO (the “Private Placement Warrants”);

 

WHEREAS, in connection
with the Business Combination, the Company will assume all of the outstanding warrants (including the Private Placement Warrants)
and each such warrant will become exercisable for one share of Company Common Stock in accordance with the terms of the Warrant
Agreement; and

 

WHEREAS, pursuant
to the terms of that certain Subscription Agreement, dated September 7, 2018 (the “Argand Subscription Agreement”),
by and between Industrea and Argand Partners Fund, LP (the “Argand Investor”), in connection with the consummation
of the Business Combination, the Argand Investor will purchase shares of Class A Common Stock (“Argand PIPE Shares”)
which will be exchanged for shares of Company Common Stock on a one-for-one basis pursuant to the Merger Agreement.

 

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

 

SECTION
1

Definitions

 

1.1         Certain
Definitions. As used in this Agreement, the following terms shall have the meanings set forth below:

 

(a)       “Affiliate” of any person or entity, shall mean any other person or entity that directly or indirectly, through
one or more intermediaries, controls, is controlled by, or is under common control with, such first person or entity. As used in
this definition, the term “control,” including the correlative terms “controlled by” and “under common
control with,” means (i) the direct or indirect ownership of more than 50% of the voting rights of a person or entity or
(ii) the possession, directly or indirectly, of the power to direct or cause the direction of management or policies (whether through
ownership of securities or any equity or other ownership interest, by contract or otherwise). For the avoidance of doubt, for purposes
of this Agreement (i) the Peninsula Holder shall not be considered an Affiliate of the Company or any of its subsidiaries, and
(ii)(a) any fund, entity or account managed, advised or sub-advised, directly or indirectly, by a Holder or any of its Affiliates,
shall be considered an Affiliate of such Holder and (b) with respect to any fund, entity or account managed, advised or sub-advised
directly or indirectly, by any Holder or any of its Affiliates, the direct or indirect equity owners thereof, including limited
partners of any Holder or any Affiliate thereof, shall be considered an Affiliate of such Holder.

 

(b)       “Agreement”
has the meaning set forth in the Preamble.

 

    	 	2	 

     

    

 

(c)       “Argand
Investor” has the meaning set forth in the Recitals.

 

(d)       “Argand
PIPE Shares” has the meaning set forth in the Recitals.

 

(e)       “Board”
shall mean the Company’s Board of Directors.

 

(f)        “Business
Combination” has the meaning set forth in the Recitals.

 

(g)       “CPH
Management Holders” shall mean the Rollover Investors set forth on Exhibit B hereto.

 

(h)      
 “Class A Common Stock” has the meaning set forth in the Recitals.

 

(i)        “Closing”
shall mean the closing of the transactions contemplated under the Merger Agreement.

 

(j)        “Commission”
shall mean the United States Securities and Exchange Commission.

 

(k)       “Company”
has the meaning set forth in the Preamble.

 

(l)       
 “Company Common Stock” has the meaning set forth in the Recitals.

 

(m)     
 “Competitor” means the concrete pumping and concrete waste management services businesses listed on an officer’s
certificate delivered by the Company to the Peninsula Holder on the date hereof, which has been mutually agreed to by the Company
and the Peninsula Holder prior to the date hereof, which certificate may be updated after the date hereof, from time to time, upon
the mutual agreement of the Company and the Peninsula Holder acting reasonably and in good faith.

 

(n)       “Competitor
Director” has the meaning set forth in Section 4.3.

 

(o)      
 “Dollars” or “$” shall mean the currency of the United States of America.

 

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

 

(q)       “FINRA”
has the meaning set forth in Section 2.5(q).

 

(r)       “Founder
Shares” has the meaning set forth in the Recitals.

 

(s)       “Holder”
shall mean an Investor who holds Registrable Securities (including their donees, pledgees, assignees, transferees and other successors)
and any holder of Registrable Securities to whom the registration rights conferred by this Agreement have been duly and validly
transferred in accordance with Section 2.11 of this Agreement.

 

(t)        “IPO”
has the meaning set forth in the Recitals.

 

    	 	3	 

     

    

 

(u)       “Indemnified
Party” has the meaning set forth in Section 2.7(c).

 

(v)       “Indemnifying
Party” has the meaning set forth in Section 2.7(c).

 

(w)       “Industrea”
has the meaning set forth in the Recitals.

 

(x)       “Initial
Agreement” has the meaning set forth in the Recitals.

 

(y)       “Initial
Investors” shall mean the holders of the Founder Shares and the Private Placement Warrants set forth on Exhibit A
hereto.

 

(z)        “Initiating
Holders” shall mean any Holder or group of Holders holding more than $25,000,000 million in Registrable Securities, based
on the closing price of the Company’s Common Stock on the day on which any request or notification is made under this Agreement.

 

(aa)     “Investors”
has the meaning set forth in the Preamble.

 

(bb)     “Majority
Holders” has the meaning set forth in Section 2.5.

 

(cc)     “Merger
Agreement” has the meaning set forth in the Recitals.

 

(dd)     “New Registration
Statement” has the meaning set forth in Section 2.1(a)(iii).

 

(ee)     “Non-Management
CPH Holders” means the Rollover Investors set forth on Exhibit C hereto.

 

(ff)       “One Director
Range” means the Peninsula Holder’s beneficial ownership of more than five percent (5%) but not more than fifteen
percent (15%) of the issued and outstanding shares of Company Common Stock as of the Closing.

 

(gg)     “Other Selling
Stockholders” shall mean persons or entities other than Holders who, by virtue of agreements with the Company, are entitled
to include their Other Shares in certain registrations hereunder.

 

(hh)     “Other Shares”
shall mean securities of the Company, other than Registrable Securities (as defined below), with respect to which registration
rights have been granted.

 

(ii)       “PDF”
has the meaning set forth in Section 5.12.

 

(jj)       “Peninsula
Board Right Period” has the meaning set forth in Section 4.2.

 

(kk)     “Peninsula
Director” means a member of the Board who was appointed or elected to the Board as a Peninsula Nominee.

 

    	 	4	 

     

    

 

(ll)      “Peninsula
Director Replacement” has the meaning set forth in Section 4.3.

 

(mm)  “Peninsula
Holder” means BBCP Investors, LLC.

 

(nn)     “Peninsula
Nominee(s)” means an individual(s) designated by the Peninsula Holder for election (or re-election) to the Board.

 

(oo)     “Peninsula
Takedown” has the meaning set forth in Section 2.2(a).

 

(pp)     “Portfolio
Company” means any corporation, limited liability company, trust, joint venture, association, company, partnership, collective
investment scheme or other entity in which the Peninsula Holder has invested, directly or indirectly, and which constitutes an
Affiliate of the Peninsula Holder as defined above.

 

(qq)     “Preferred
Stock” has the meaning set forth in clause (ss) of this Section 1.1.

 

(rr)       “Preferred
Stock Conversion Shares” means the Company Common Stock issued upon conversion of the Preferred Stock.

 

(ss)      “Preferred
Stock Subscription Agreement” means the subscription agreement, dated September 7, between the Company and the other
parties thereto, providing for the issuance and sale by the Company of shares of the Company’s Series A Convertible Perpetual
Preferred Stock (the “Preferred Stock”).

 

(tt)       “Private
Placement Warrants” has the meaning set forth in the Recitals.

 

(uu)     The terms “register,”
 “registered” and “registration” shall refer to a registration effected by preparing and filing
a registration statement in compliance with the Securities Act and applicable rules and regulations thereunder, and the declaration
or ordering of the effectiveness of such registration statement.

 

(vv)     “Registrable
Securities” shall mean (i) Company Common Stock issued in connection with the Closing to (1) the Initial Investors, as
set forth on Exhibit A hereto, (2) the CPH Management Holders, including Company Common Stock issuable upon the exercise
of stock options issued to such Holders at the Closing, as set forth on Exhibit B hereto, and (3) the Non-Management CPH
Holders, as set forth on Exhibit C hereto, (ii) the Private Placement Warrants (including any Company Common Stock issued
or issuable upon the exercise of any such Private Placement Warrants), (iii) Company Common Stock issued or issuable upon the exercise
of any warrants of the Company (other than Private Placement Warrants) that are held by an Initial Investor (or its designee),
and (iv) any other equity security of the Company issued or issuable with respect to any such shares of Company Common Stock by
way of a stock dividend or stock split or in connection with a combination of shares, capitalization, merger, consolidation or
reorganization; provided, however, that, as to any particular Registrable Security, such securities shall cease to be Registrable
Securities when: (1) a Registration Statement with respect to the sale of such securities shall have become effective under the
Securities Act and such securities shall have been sold, transferred, disposed of or exchanged in accordance with such Registration
Statement; (2) such securities shall have been otherwise transferred, new certificates for such securities not bearing a legend
restricting further transfer shall have been delivered by the Company and subsequent public distribution of such securities shall
not require registration under the Securities Act; (3) such securities shall have ceased to be outstanding; (4) such securities
have been sold pursuant to Rule 144 promulgated under the Securities Act without volume or manner of sale restrictions contained
therein; or (5) such securities have been sold to, or through, a broker, dealer or underwriter in a public distribution or other
public securities transaction; provided, further, that Registrable Securities shall include any shares of Company Common Stock
acquired by a Holder after the date of this Agreement, that, based on the good faith determination of such Holder (after consultation
with the Company’s outside counsel), may not be resold publicly pursuant to the exemption from registration under Section
4(a)(1) of the Securities Act.

 

    	 	5	 

     

    

 

(ww)    “Registration
Expenses” shall mean all expenses incurred in effecting any registration pursuant to this Agreement, including, without
limitation, all registration, qualification and filing fees (including fees with respect to filings required to be made with FINRA,
and any fees of the securities exchange or automated quotation system on which the Company Common Stock is then listed or quoted),
printing expenses, escrow fees, fees and disbursements of counsel for the Company, one (1) counsel for the Holders requesting to
include their securities in such registration, to be selected by the Holders of a majority of the Registrable Securities to be
included in such registration, blue sky fees and expenses (including reasonable fees and disbursements of counsels for the Holders
in connection with blue sky compliance), and any fees and disbursements of accountants retained by the Company incident to or required
by any such registration, but shall not include Selling Expenses or fees and disbursements of other counsel(s) for the Holders.

 

(xx)      “Representatives”
means, with respect to any person, any of such person’s officers, directors, employees, agents, attorneys, accountants, actuaries,
consultants, equity financing partners or financial advisors or other person associated with, or acting on behalf of, such person.

 

(yy)     “Resale
Shelf Registration Statement” has the meaning set forth in Section 2.1(a)(i).

 

(zz)      “Restricted
Securities” shall mean any Registrable Securities that are required to bear a legend restricting transfer.

 

(aaa)    “Rule 144”
shall mean Rule 144 as promulgated by the Commission under the Securities Act, as such Rule may be amended from time
to time, or any similar successor rule that may be promulgated by the Commission.

 

(bbb)   “Rule 145”
shall mean Rule 145 as promulgated by the Commission under the Securities Act, as such Rule may be amended from time
to time, or any similar successor rule that may be promulgated by the Commission

 

(ccc)    “Securities
Act” shall mean the Securities Act of 1933, as amended.

 

    	 	6	 

     

    

 

(ddd)   “Selling
Expenses” shall mean all underwriting discounts, selling commissions and stock transfer taxes applicable to the sale
of Registrable Securities and fees and disbursements of counsel for any Holder (other than the fees and disbursements of counsel
to the Holders included in Registration Expenses).

 

(eee)    “Sponsor”
has the meaning set forth in the Recitals.

 

(fff)      “Suspension
Notice” has the meaning set forth in Section 2.1(f).

 

(ggg)    “Three
Director Range” means the Peninsula Holder’s beneficial ownership of more than twenty-five percent (25%) of the
issued and outstanding shares of Company Common Stock as of the Closing.

 

(hhh)    “Transfer”
shall mean the (a) sale of, offer to sell, contract or agreement to sell, hypothecate, pledge, grant of any option to purchase
or otherwise dispose of or agreement to dispose of, directly or indirectly, or establishment or increase of a put equivalent position
or liquidation with respect to or decrease of a call equivalent position within the meaning of Section 16 of the Exchange Act,
and the rules and regulations of the Commission promulgated thereunder with respect to, any security, or (b) entry into any swap
or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any security,
whether any such transaction is to be settled by delivery of such securities, in cash or otherwise; provided, that a Transfer shall
not be deemed to have been made by the Peninsula Holder solely as a result of direct or indirect transfers of equity interests
in the Peninsula Holder so long as PGP Investors, LLC or its Affiliates retain sole voting control over the Peninsula Holder following
any such direct or indirect transfer.

 

(iii)       “Two
Director Range” means the Peninsula Holder’s beneficial ownership of more than fifteen percent (15%) but not more
than twenty five percent (25%) of the issued and outstanding shares of Company Common Stock as of the Closing.

 

(jjj)       “Underwritten
Takedown” shall mean an underwritten public offering of Registrable Securities pursuant to an effective registration
statement.

 

(kkk)    “Warrant
Agreement” has the meaning set forth in the Recitals.

 

    	 	7	 

     

    

 

SECTION
2

Registration Rights

 

		2.1	Registration

 

(a)          Registration
Requirements. The Company shall, not later than ninety (90) days after the Closing, prepare and file with the Commission
a registration statement on Form S-3, or if Form S-3 is not available, Form S-1 or such other registration statement form that
is available to the Company, and take all such other actions as are necessary to ensure that there is an effective “shelf”
registration statement containing a prospectus that remains current covering (and to qualify under required U.S. state securities
laws, if any) the offer and sale of all Registrable Securities by the Holders on a continuous or delayed basis pursuant to Rule
415 of the Securities Act (the registration statement, the “Resale Shelf Registration Statement”). The Company
shall use reasonable best efforts to cause the Commission to declare the Resale Shelf Registration Statement effective as soon
as possible thereafter but in any event within one hundred fifty (150) days of the Closing, and to remain effective and the prospectus
contained therein current until all Holders cease to hold Registrable Securities. The Resale Shelf Registration Statement shall
provide for any method or combination of methods of resale of Registrable Securities legally available to, and requested by, the
Holders, and shall comply with the relevant provisions of the Securities Act and Exchange Act. At the time the Resale Shelf Registration
Statement is declared effective, each Investor shall be named as a selling securityholder in the Resale Shelf Registration Statement
and the related prospectus in such a manner as to permit such Investor to deliver such prospectus to purchasers of Registrable
Securities in accordance with applicable law. If the Resale Shelf Registration Statement is on Form S-3 and ceases to be effective,
then the Company shall, as soon as practicable but in any event no later than the earlier of (i) if the Company has filed with
the Commission all periodic reports required to be filed under the Exchange Act, sixty (60) days after the date on which the Resale
Shelf Registration Statement ceased to be effective and (ii) if the Company has not filed with the Commission all periodic reports
required to be filed under the Exchange Act, sixty (60) days after the date on which the Company files such reports with the Commission,
prepare and file with the Commission a post-effective amendment to the Resale Shelf Registration Statement or new registration
statement on an available form covering all the Registrable Securities, and shall use its reasonable best efforts to cause such
registration statement to be declared effective by the Commission within seventy-five (75) days after such filing and to maintain
the effectiveness of such registration statement until all Holders cease to hold Registrable Securities. Upon effectiveness, such
registration statement shall constitute the “Resale Shelf Registration Statement” for all purposes under this Agreement.

 

(b)          Request
for Underwritten Takedowns. The Holders that qualify as Initiating Holders will be entitled to an unlimited number of Underwritten
Takedowns with respect to their Registrable Securities. If the Company shall receive from Initiating Holders a written request
signed by such Initiating Holders that the Company effect any Underwritten Takedown with respect to all or a part of the Registrable
Securities (such request shall state the number of shares of Registrable Securities to be disposed of by such Initiating Holders),
the Company will:

 

(i)       promptly,
and in any event, within five (5) days after receiving such request, give written notice of the proposed Underwritten Takedown
to all other Holders; and

 

(ii)      as
soon as practicable, use its reasonable best efforts to cause the Commission to declare such Underwritten Takedown effective within
sixty (60) days thereafter (including, without limitation, filing post-effective amendments, one or more prospectus supplements,
appropriate qualifications under any applicable blue sky or other state securities laws, and appropriate compliance with the Securities
Act) and to permit and facilitate the sale and distribution in an underwritten offering of all or such portion of such Registrable
Securities as are specified in such request, together with all or such portion of the Registrable Securities of any Holder or Holders
joining in such request as are specified in a written request received by the Company within five (5) days after such written notice
from the Company is mailed or delivered.

 

    	 	8	 

     

    

 

(c)          Limitations
on Underwritten Takedowns. The Company shall not be obligated to effect any Underwritten Takedown pursuant to this Section
2.1:

 

(i)       If
the Initiating Holders, together with the holders of any other securities of the Company entitled to inclusion in such Underwritten
Takedown, propose to sell Registrable Securities and such other securities (if any), the aggregate proceeds of which are anticipated
to be less than $25,000,000; or

 

(ii)       In
any particular jurisdiction in which the Company would be required to execute a general consent to service of process in effecting
such registration, qualification, or compliance, unless the Company is already subject to service in such jurisdiction and except
as may be required by the Securities Act; or

 

(iii)       Within
one hundred twenty (120) days of the closing of any other Underwritten Takedown.

 

(d)          Other
Shares. Any Underwritten Takedown may, subject to the provisions of Section 2.1(f), include Other Shares, and may
include securities of the Company being sold for the account of the Company, provided that, any Other Shares or securities
of the Company to be included in an Underwritten Takedown must be the subject of an effective shelf registration statement at the
time the Company receives the request for an Underwritten Takedown from the Initiating Holders.

 

(e)          Underwriting;
Cutback. If the Company shall request inclusion in any Underwritten Takedown of securities to be sold for its own account,
or if other persons shall request inclusion of Other Shares in any Underwritten Takedown, the Initiating Holders shall, on behalf
of all Holders, offer to include such securities in the underwriting and such offer shall be conditioned upon the participation
of the Company or such other persons in such underwriting and the inclusion of the Company’s and such other person’s
securities of the Company and their acceptance of the applicable provisions of this Section 2. The Company shall (together
with all Holders and other persons proposing to distribute their securities through such underwriting) enter into an underwriting
agreement in customary form with the representative of the underwriter or underwriters selected for such underwriting by the Company,
which underwriters are reasonably acceptable to a majority-in-interest of the Initiating Holders. No Holder (or its permitted transferee
or assignee under Section 2.11) shall be required to make any representations or warranties to, or agreements with, the
Company or the underwriters other than representations, warranties or agreements regarding such Holder’s (or such transferee’s
or assignee’s) authority to enter into such underwriting agreement and to sell, and its ownership of, the securities being
registered on its behalf, its intended method of distribution and any other representation required by law.

 

    	 	9	 

     

    

 

Notwithstanding any other
provision of this Section 2.1, if the underwriters, in good faith, advise the Initiating Holders in writing that marketing
factors require a limitation on the number of Registrable Securities to be underwritten, the number of Registrable Securities and
Other Shares that may be so included shall be allocated as follows: (i) first, among Initiating Holders requesting to include Registrable
Securities in such Underwritten Takedown based on the pro rata percentage of Registrable Securities requested by such Initiating
Holders to be included in such Underwritten Takedown (determined based on the aggregate number of Registrable Securities requested
to be included in such Underwritten Takedown by each such Initiating Holder); (ii) second, among all other Holders requesting to
include Registrable Securities in such Underwritten Takedown based on the pro rata percentage of Registrable Securities
requested by such Holders to be included in such Underwritten Takedown (determined based on the aggregate number of Registrable
Securities requested to be included in such Underwritten Takedown by each such Holder); (iii) third, to any holder of Preferred
Stock Conversion Shares that has requested the inclusion of its Preferred Stock Conversion Shares pursuant to the Preferred Stock
Subscription Agreement; (iv) fourth, to the Company, which the Company may allocate, at its discretion, for its own account, or
for the account of other Holders or employees of the Company, and (v) fifth, to any Other Selling Stockholders requesting to include
Other Shares in such registration statement.

 

If a person who has requested
inclusion in such Underwritten Takedown as provided above does not agree to the terms of any such underwriting, such person shall
be excluded therefrom by written notice to the Company, the underwriter or the Initiating Holders, and the securities so excluded
shall also be withdrawn from the Underwritten Takedown. If Registrable Securities are so withdrawn from the Underwritten Takedown
and if the number of shares to be included in such Underwritten Takedown was previously reduced as a result of marketing factors
pursuant to this Section 2.1(e), then the Company shall offer to all Holders who have retained rights to include securities
in the Underwritten Takedown the right to include additional Registrable Securities in the offering in an aggregate amount equal
to the number of shares so withdrawn, with such shares to be allocated among such Holders requesting additional inclusion, as set
forth above.

 

(f)          Deferral;
Suspension. Notwithstanding anything in this Agreement to the contrary, if the Company furnishes to the Holders a certificate
(the “Suspension Notice”) signed by an executive officer of the Company stating that, in the good faith judgment
of the Company, effecting a registration (whether by the filing of a Registration Statement or by taking any other action) or the
offering or disposition of Registrable Securities thereunder (including, for the avoidance of doubt, through an Underwritten Takedown)
should be postponed or suspended because such registration, offering or disposal would (1) materially impede, delay or interfere
with a pending material acquisition, corporate reorganization, or other similar transaction involving the Company; (2) require
premature disclosure of material non-public information that the Company has a bona fide business purpose for preserving as confidential;
or (3) render the Company unable to comply with requirements under the Securities Act or Exchange Act, then by delivery of the
Suspension Notice to the Holders, the Company may so postpone effecting a registration or require the Holders to refrain from offering
or disposing of Registrable Securities for a period of not more than thirty (30) days, and, provided further, that the Company
shall not suspend usage of a registration statement in this manner more than twice in any twelve (12) month period or at any time
within thirty (30) days of the end of the immediately preceding suspension period. The Company shall give written notice to the
Holders as promptly as practicable following the date that such suspension is no longer necessary.

 

    	 	10	 

     

    

 

2.2         Peninsula
Holder Underwritten Takedown. If the number of shares issued to the Peninsula Holder pursuant to the terms of the Rollover
Agreement to which it is a party exceeds 882,353 shares (the “Peninsula Threshold”), then for a period of two
years following the one hundred eighty (180)-day anniversary of the Closing, the Peninsula Holder shall have the right to cause
the Company to effect one (1) Underwritten Takedown (a “Peninsula Takedown”) (which, for the avoidance of doubt,
will be on whatever registration statement form is then available to the Company to serve as the Resale Shelf Registration Statement,
including a registration statement on Form S-1 to the extent that Form S-3 is not then available) in which the Peninsula Holder
shall have the right to include the Peninsula Holder’s Registrable Securities in excess of the Peninsula Threshold in such
Underwritten Takedown as a matter of priority over all other Holders and the Company. If the Company receives a written request
for a Peninsula Takedown, then, subject to Section 2.1(c)(ii) and (iii), the Company shall provide the notices and
take the actions required by Section 2.1(b)(i) and (ii) of this Agreement. Without the prior written consent of the
Peninsula Holder, no stockholder of the Company (other than the Peninsula Holder) may include securities in an offering pursuant
to a Peninsula Takedown. If the underwriters, in good faith, advise the Peninsula Holder in writing that marketing factors require
a limitation on the number of Registrable Securities to be underwritten, the number of Registrable Securities that may be so included
in the Peninsula Takedown shall be allocated as follows: (i) first, to the Peninsula Holder to include Registrable Securities in
such Underwritten Takedown in excess of the Peninsula Threshold; and (ii) second, to the Company, which the Company may allocate,
at its discretion, for its own account or, with the prior written consent of the Peninsula Holder, for the account of other Holders
who have requested to include their Registrable Securities in such offering; provided, that if (A) on the date on which
the Peninsula Holder provides a written request for an initial Peninsula Takedown the Peninsula Holder beneficially owns at least
2,625,2721 shares of Company Common Stock that were issued under its Rollover
Agreement and (B) less than fifty percent (50%) of the Registrable Securities of the Peninsula Holder requested to be registered
in the Peninsula Takedown are included in such initial Underwritten Takedown effected under this Section 2.2, then such
Underwritten Takedown shall not be considered a Peninsula Takedown for purposes of this Agreement; provided further that
in no event shall the Company (1) be required to effect a Peninsula Takedown within six (6) months after the closing date of any
other Underwritten Takedown effected under this Section 2.2, and (2) be required to effect more than two (2) Underwritten
Takedowns under this Section 2.2. In connection with any Peninsula Takedown, Argand Investor and its Affiliates shall, at
the Peninsula Holder’s written request, sign a customary lockup agreement whereby Argand Investor and its Affiliates will
agree to refrain from effecting any Transfer of Company Common Stock or other securities of the Company until sixty (60) days after
the conclusion of the Peninsula Takedown. The Peninsula Holder shall have the right to terminate or withdraw its request for an
Underwritten Takedown (and in such case shall not be deemed to have exercised its right to have caused the Company to effect a
Peninsula Takedown) at any time prior to the effectiveness of such registration.

 

 

1 Reflects Peninsula’s initial
rollover amount (at $10.20 per share) plus $16m backstop utilization (at $9.18 per share; $25m total rollover).

 

    	 	11	 

     

    

 

		2.3	Company
Registration

 

(a)          Company
Registration/Underwritten Offering. If the Company shall determine to (1) register any of its securities either for its
own account or the account of a security holder or holders (or a combination of the foregoing) during a period in which a Resale
Shelf Registration Statement covering a Holder’s Registrable Securities is not then effective, other than: a registration
pursuant to Sections 2.1 or 2.2; a registration relating to the shares of Company Common Stock underlying the Public
Warrants; a registration relating solely to employee benefit plans, a registration relating to the offer and sale of non-convertible
debt securities, a registration relating to a corporate reorganization or other Rule 145 transaction; or a registration on
any registration form that does not permit secondary sales, or (2) effect an underwritten public offering of securities, either
for its own account or the account of a security holder or holders (or a combination of the foregoing), the Company will:

 

(i)        promptly
give written notice (in any event not later than twenty (20) days prior to the filing of the registration statement or preliminary
prospectus to which such offering relates) of the proposed registration or offering, as applicable, to all Holders; and

 

(ii)      include
in such registration or offering, as applicable, (and any related qualification under blue sky laws or other compliance), except
as set forth in Section 2.2(b) below, and in any underwriting involved therein, all of such Registrable Securities
as are specified in a written request or requests made by any Holder or Holders received by the Company within ten (10) days after
receipt of such written notice from the Company. Such written request may specify all or a part of a Holder’s Registrable
Securities.

 

(b)          Underwriting;
Cutback. If the registration or offering of which the Company gives notice is for an underwritten public offering, the
Company shall so advise the Holders (and include the names of the proposed underwriters) as a part of the written notice given
pursuant to Section 2.2(a)(i). All Holders proposing to distribute their securities through such underwriting shall
(together with the Company and the Other Selling Stockholders with registration rights to participate therein) enter into an underwriting
agreement in customary form with the representative of the underwriter or underwriters selected by the Company. No Holder (or its
permitted transferee or assignee under Section 2.11) shall be required to make any representations or warranties to, or
agreements with, the Company or the underwriters other than representations, warranties or agreements regarding such Holder’s
(or such transferee’s or assignee’s) authority to enter into such underwriting agreement and to sell, and its ownership
of, the securities being registered on its behalf, its intended method of distribution and any other representation required by
law.

 

Notwithstanding any other
provision of this Section 2.2, if the underwriters in good faith advise the Company and the Holders of Registrable
Securities participating in the offering in writing that marketing factors require a limitation on the number of shares to be underwritten,
the number of Registrable Securities to be included in the registration and underwriting shall be reduced, subject to the limitations
set forth below. The Company shall so advise all holders of securities requesting registration, and the number of shares entitled
to be included in the registration and underwriting shall be allocated (1) if the underwritten offering is for the Company’s
account, (m) first, to the Company; (n) second, to the Holders requesting to include Registrable Securities in such offering based
on the pro rata percentage of Registrable Securities requested to be included by such Holders; (o) third, to any holder
of Preferred Stock Conversion Shares that has requested the inclusion of its Preferred Stock Conversion Shares pursuant to the
Preferred Stock Subscription Agreement; and (iv) fourth, to the Other Selling Stockholders, if any, requesting to include Other
Shares in such underwritten offering and (2) if the underwritten offering is for the account of Other Selling Stockholders, then
(x) first, to the Other Selling Stockholders, (y) second, to the Holders
requesting to include Registrable Securities in such offering based on the pro rata percentage of Registrable Securities
requested to be included by such Holders; and (z)
third, to the Company.

 

    	 	12	 

     

    

 

If a person who has requested
inclusion in such registration as provided above does not agree to the terms of any such underwriting, such person shall be excluded
therefrom by written notice to the Company and the underwriter. Any Registrable Securities or Other Shares excluded or withdrawn
from such underwriting shall be withdrawn from such registration. Notwithstanding anything to the contrary, the Company shall be
responsible for the Registration Expenses prior to any such withdrawal.

 

(c)          Right
to Terminate Registration. The Company shall have the right to terminate or withdraw any registration initiated by it under
this Section 2.2 prior to the effectiveness of such registration whether or not any Holder has elected to include securities
in such registration.

 

2.4         Expenses
of Registration. All Registration Expenses incurred in connection with registrations pursuant to this Section 2
shall be borne by the Company. All Selling Expenses relating to securities registered on behalf of the Holders and the holders
of any Other Shares shall be borne by the Holders and any holders of any Other Shares included in such registration pro rata
among each other on the basis of the number of Registrable Securities and Other Shares, respectively, registered on their behalf.

 

2.5         Registration
Procedures. In the case of each registration of Registrable Securities effected by the Company pursuant to Section 2,
the Company will keep each Holder advised in writing as to the initiation of each registration and as to the completion thereof.
At its sole expense, the Company will:

 

(a)          Prepare
each registration statement, including all exhibits and financial statements required under the Securities Act to be filed therewith,
and before filing such registration statement, any prospectus or any amendments or supplements thereto, furnish to the Holders
of the Registrable Securities copies of all documents prepared to be filed, which documents shall be subject to the review of such
Holders and their respective counsel;

 

(b)          As
soon as reasonably practicable file with the Commission, the registration statement relating to the Registrable Securities, including
all exhibits and financial statements required by the Commission to be filed therewith, and use its reasonable best efforts to
cause such registration statement(s) to become effective under the Securities Act as soon as practicable;

 

(c)          Prepare
and file with the Commission such amendments, post-effective amendments and supplements to such registration statement and the
prospectus used in connection with such registration statement as may be requested by the Holders or any underwriter of Registrable
Securities or as may be necessary to keep such registration statement effective and to comply with the provisions of the Securities
Act with respect to the disposition of all securities covered by such registration statement;

 

    	 	13	 

     

    

 

(d)          Notify
the participating Holders of Registrable Securities, and confirm such notice in writing and provide copies of the relevant documents,
as soon as reasonably practicable after notice thereof is received by the Company (a) when the applicable registration statement
or any amendment thereto has been filed or becomes effective, and when the applicable prospectus or any amendment or supplement
to such prospectus has been filed, (b) of any written comments by the Commission or any request by the Commission or any other
federal or state governmental authority for amendments or supplements to such registration statement, prospectus or for additional
information (whether before or after the effective date of the registration statement), (c) of the issuance by the Commission
of any stop order suspending the effectiveness of such registration statement or any order by the Commission or any other regulatory
authority preventing or suspending the use of any preliminary or final prospectus or the initiation or threatening of any proceedings
for such purposes and (d) of the receipt by the Company of any notification with respect to the suspension of any Registrable
Securities for offering or sale in any jurisdiction or the initiation or threatening of any proceeding for such purpose;

 

(e)          Furnish
such number of prospectuses, including any preliminary prospectuses, and other documents incident thereto, including any amendment
of or supplement to the prospectus, as a Holder (or its counsel) from time to time may reasonably request;

 

(f)           Register
and qualify the securities covered by such registration statement under such other securities or Blue Sky laws of such jurisdictions
as shall be reasonably requested by the Holders; provided, that the Company shall not be required in connection therewith
or as a condition thereto to qualify to do business or to file a general consent to service of process in any such states or jurisdictions
where it would not otherwise be required to qualify or when it is not then otherwise subject to service of process;

 

(g)          Notify
each seller of Registrable Securities covered by such registration statement at any time when a prospectus relating thereto is
required to be delivered under the Securities Act of the happening of any event as a result of which the prospectus included in
such registration statement, as then in effect, includes an untrue statement of a material fact or omits to state a material fact
required to be stated therein or necessary to make the statements therein not misleading or incomplete in the light of the circumstances
under which they were made, and following such notification promptly prepare and file a post-effective amendment to such registration
statement or a supplement to the related prospectus or any document incorporated therein by reference, and file any other required
document that would be incorporated by reference into such registration statement and prospectus, so that such registration statement
does not contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary
to make the statements therein not misleading, and that such prospectus does not contain any untrue statement of a material fact
or omit to state any material fact required to be stated therein or necessary to make the statements therein, in the light of the
circumstances under which they were made, not misleading, and, in the case of a post-effective amendment to a registration statement,
use reasonable best efforts to cause it to be declared effective as promptly as is reasonably practicable, and give to the Holders
listed as selling security holders in such prospectus a written notice of such amendment or supplement, and, upon receipt of such
notice, each such Holder agrees not to sell any Registrable Securities pursuant to such registration statement until such Holder’s
receipt of copies of the supplemented or amended prospectus or until it receives further written notice from the Company that such
sales may re-commence;

 

    	 	14	 

     

    

 

(h)          Use
its reasonable best efforts to prevent, or obtain the withdrawal of, any order suspending the effectiveness of any registration
statement (and promptly notify in writing each Holder covered by such registration statement of the withdrawal of any such order);

 

(i)           Provide
a transfer agent or warrant agent, as applicable, and registrar for all Registrable Securities registered pursuant to such registration
statement and a CUSIP number for all such Registrable Securities, in each case not later than the effective date of such registration;

 

(j)           if
requested, cooperate with the selling Holders of Registrable Securities to facilitate the timely preparation and delivery of certificates
or establishment of book entry notations representing Registrable Securities to be sold and not bearing any restrictive legends,
including without limitation, procuring and delivering any opinions of counsel, certificates or agreements as may be necessary
to cause such Registrable Securities to be so delivered;

 

(k)          Cause
all such Registrable Securities registered hereunder to be listed on each securities exchange or automated quotation system on
which similar securities issued by the Company are then listed;

 

(l)           In
connection with any underwritten offering pursuant to a registration statement filed pursuant to Section 2.1 or 2.2,
enter into and perform its obligations under an underwriting agreement in form reasonably necessary to effect the offer and sale
of the Registrable Securities subject to such underwriting, provided, that such underwriting agreement contains reasonable
and customary provisions;

 

(m)         Furnish
to each Holder of Registrable Securities included in such registration statement a signed counterpart, addressed to such Holder,
of (1) any opinion of counsel to the Company delivered to any underwriter dated the effective date of the registration statement
or, in the event of an underwritten offering, the date of the closing under the applicable underwriting agreement, in customary
form, scope, and substance, at a minimum to the effect that the registration statement has been declared effective and that no
stop order is in effect, which counsel and opinions shall be reasonably satisfactory to the Holders and their respective counsel
and (2) any comfort letter from the Company’s independent public accountants delivered to any underwriter in customary
form and covering such matters of the type customarily covered by comfort letters as the managing underwriter or underwriters reasonably
request. In the event no legal opinion is delivered to any underwriter, the Company shall furnish to each Holder of Registrable
Securities included in such registration statement, at any time that such Holder elects to use a prospectus, an opinion of counsel
to the Company to the effect that the registration statement containing such prospectus has been declared effective and that no
stop order is in effect and any other matters as the Holders or underwriter may reasonably request and as are customarily included;

 

    	 	15	 

     

    

 

(n)          Promptly
identify to the selling Holders, any underwriter(s) participating in any disposition pursuant to such registration statement, and
any attorney or accountant or other agent retained by any such underwriter or selected by the selling Holders, make available for
inspection by the seller Holders all financial and other records, pertinent corporate documents, and properties of the Company,
and cause the Company’s officers, directors, employees, and independent accountants to supply all information reasonably
requested by any such seller, underwriter, attorney, accountant, or agent, in each case, as necessary or advisable to verify the
accuracy of the information in such registration statement and to conduct appropriate due diligence in connection therewith;

 

(o)          Fully
cooperate, and cause each of its principal executive officer, principal financial officer, principal accounting officer, and all
other officers and members of the management to fully cooperate in any offering of Registrable Securities hereunder, which cooperation
shall include, without limitation, assisting with the preparation of any registration statement or amendment thereto with respect
to such offering and all other offering materials and related documents, and participation in meetings with underwriters, attorneys,
accountants and potential stockholders;

 

(p)          Otherwise
use its reasonable best efforts to comply with all applicable rules and regulations of the Commission and make available to its
stockholders an earnings statement (in a form that satisfies the provisions of Section 11(a) of the Securities Act and Rule 158
under the Securities Act or any successor rule thereto) no later than thirty (30) days after the end of the 12-month period beginning
with the first day of the Company's first full fiscal quarter after the effective date of such registration statement, which earnings
statement shall cover said 12-month period, and which requirement will be deemed to be satisfied if the Company timely files complete
and accurate information on Forms 10-K, 10-Q and 8-K under the Exchange Act and otherwise complies with Rule 158 under the Securities
Act or any successor rule thereto;

 

(q)          Cooperate
with each Holder and each underwriter or agent, if any, participating in the disposition of such Registrable Securities and their
respective counsel in connection with any filings required to be made with the Financial Industry Regulatory Authority, Inc. (“FINRA”),
and use its reasonable best efforts to make or cause to be made any filings required to be made by an issuer with FINRA in connection
with the filing of any registration statement;

 

(r)           In
the event of any underwritten public offering of Registrable Securities, cause senior executive officers of the Company to participate
in customary “road show” presentations that may be reasonably requested by the managing underwriter in any such underwritten
offering and otherwise to facilitate, cooperate with, and participate in each proposed offering contemplated herein and customary
selling efforts related thereto;

 

(s)          Take
all reasonable action to ensure that any “free writing prospectus” (as defined in the Securities Act) utilized in connection
with any registration covered by Section 2.1 complies in all material respects with the Securities Act, is
filed in accordance with the Securities Act to the extent required thereby, is retained in accordance with the Securities Act to
the extent required thereby and, when taken together with the related prospectus, will not contain any untrue statement of a material
fact or omit to state a material fact necessary to make the statements therein, in the light of the circumstances under which they
were made, not misleading; and

 

    	 	16	 

     

    

 

(t)          Take
all such other reasonable actions as are necessary or advisable in order to expedite or facilitate the disposition of such Registrable
Securities.

 

2.6         Price
and Underwriting Discounts. In the case of an underwritten offering requested by Holders pursuant to Section 2.1,
the managing underwriters (which shall be reasonably acceptable to the Company), size, manner of sale, plan of distribution, size,
manner of sale, plan of distribution, price, underwriting discount and other financial terms of the related underwriting agreement
for the Registrable Securities shall be determined by either (i) a majority-in-interest of the Holders whose Registrable Securities
are being offered in such offering (the “Majority Holders”); or (ii) such other means as is determined by the
Majority Holders, in their sole discretion. In the case of a Peninsula Takedown , the managing underwriters (which shall be reasonably
acceptable to the Company), size, manner of sale, plan of distribution, price, underwriting discount and other financial terms
of the related underwriting agreement shall be determined by the Peninsula Holder. In the case of any Underwritten Offering pursuant
to Section 2.3, such price, discount and other terms shall be determined by the Company, subject to the right of the
Holders to withdraw their request to participate in the registration pursuant to Section 2.3 after being advised of
such price, discount and other terms.

 

		2.7	Indemnification

 

(a)          To
the extent permitted by law, the Company will indemnify and hold harmless each Holder, and each shareholder, member, limited or
general partner thereof, each shareholder, member, limited or general partner of each such shareholder, member, limited or general
partner, each of their respective Affiliates, officers, directors, shareholders, employees, advisors, and agents and each Person
who controls (within the meaning of Section 15 of the Securities Act) such Persons and each of their respective Representatives,
and each underwriter, if any, and each person or entity who controls within the meaning of Section 15 of the Securities Act
any underwriter, against all expenses, claims, judgments, suits, costs, penalties, losses, damages and liabilities (or actions,
proceedings or settlements in respect thereof) arising out of or based on: (i) any untrue statement (or alleged untrue statement)
of a material fact contained or incorporated by reference in any prospectus, offering circular or other document (including any
related registration statement, notification or the like) incident to any such registration, qualification or compliance, (ii) any
omission (or alleged omission) to state therein a material fact required to be stated therein or necessary to make the statements
therein not misleading, or (iii) any violation (or alleged violation) by the Company of the Securities Act, any state securities
laws or any rule or regulation thereunder applicable to the Company and relating to action or inaction required of the Company
in connection with any offering covered by such registration, qualification or compliance, and the Company will reimburse each
Holder, and each shareholder, member, limited or general partner thereof, each shareholder, member, limited or general partner
of each such shareholder, member, limited or general partner, each of their respective Affiliates, officers, directors, shareholders,
employees, advisors, and agents and each Person who controls such persons and each of their respective Representatives, and each
underwriter, if any, and each person or entity who controls any underwriter, for any legal and any other expenses reasonably incurred
in connection with investigating and defending or settling any such claim, judgment, suit, penalty, loss, damage, liability or
action; provided that the Company will not be liable in any such case to the extent that any such claim, judgment, suit,
penalty loss, damage, liability, or action arises out of or is based on any untrue statement or omission based upon written information
furnished to the Company by such Holder, any of such Holder’s Representatives, any person or entity controlling such Holder,
such underwriter or any person or entity who controls any such underwriter, and stated to be specifically for use therein; provided,
further that, the indemnity agreement contained in this Section 2.6(a) shall not apply to amounts paid in settlement
of any such loss, claim, damage, liability or action if such settlement is effected without the consent of the Company (which consent
shall not be unreasonably withheld). This indemnity shall be in addition to any liability the Company may otherwise have. Such
indemnity shall remain in full force and effect regardless of any investigation made by or on behalf of such Holder or any indemnified
party and shall survive the transfer of such securities by such Holder.

 

    	 	17	 

     

    

 

(b)          To
the extent permitted by law, each selling Holder, severally and not jointly, will, if Registrable Securities held by such Holder
are included in the securities as to which such registration, qualification or compliance is being effected, indemnify and hold
harmless the Company, each of its directors, officers, employees, partners, legal counsel and accountants and each underwriter,
if any, of the Company’s securities covered by such a registration statement, each person or entity who controls the Company
or such underwriter within the meaning of Section 15 of the Securities Act, each other such Holder, and each of their officers,
directors and partners, and each person or entity controlling each other such Holder, and each of their respective Representatives,
against all claims, judgments, penalties losses, damages and liabilities (or actions in respect thereof) arising out of or based
on: (i) any untrue statement (or alleged untrue statement) of a material fact contained or incorporated by reference in any
prospectus, offering circular or other document (including any related registration statement, notification, or the like) incident
to any such registration, qualification or compliance made in reliance upon and in conformity with information furnished in writing
by or on behalf of such selling Holder expressly for use in connection with such registration, (ii) any omission to state
therein a material fact required to be stated therein or necessary to make the statements therein not misleading, in each case
made in reliance upon and in conformity with information furnished in writing by or on behalf of such selling Holder expressly
for use in connection with such registration, or (iii) any violation (or alleged violation) by the Company of the Securities Act,
any state securities laws or any rule or regulation thereunder applicable to the Holder and relating to action or inaction required
of the Holder in connection with any offering covered by such registration, qualification or compliance, and will reimburse the
Company and such Holders, directors, officers, partners, legal counsel and accountants, persons, underwriters, or control persons
for any legal or any other expenses reasonably incurred in connection with investigating or defending any such claim, loss, damage,
liability or action, in each case to the extent, but only to the extent, that such untrue statement or omission (i) is made in
such registration statement, prospectus, offering circular or other document in reliance upon and in conformity with written information
furnished to the Company by such Holder and stated to be specifically for use therein and (ii) has not been corrected in a subsequent
writing prior to or concurrently with the sale of the Registrable Securities to the person asserting the claim; provided,
however, that the obligations of such Holder hereunder shall not apply to amounts paid in settlement of any such claims,
losses, damages or liabilities (or actions in respect thereof) if such settlement is effected without the consent of such Holder
(which consent shall not be unreasonably withheld); and provided that in no event shall any indemnity under this Section 2.7
exceed the net proceeds from the offering received by such Holder, except in the case of fraud or willful misconduct by such Holder.

 

    	 	18	 

     

    

 

(c)          Each
party entitled to indemnification under this Section 2.7 (the “Indemnified Party”) shall (i) give
notice to the party required to provide indemnification (the “Indemnifying Party”) promptly after such Indemnified
Party has actual knowledge of any claim as to which indemnity may be sought  (provided, that any delay or failure
to so notify the indemnifying party shall relieve the Indemnifying Party of its obligations hereunder only to the extent, if at
all, that it is actually and materially prejudiced by reason of such delay or failure), and (ii) permit the Indemnifying Party
to assume the defense of such claim or any litigation resulting therefrom; provided that counsel for the Indemnifying Party,
who shall conduct the defense of such claim or any litigation resulting therefrom, shall be approved by the Indemnified Party (whose
approval shall not be unreasonably withheld), and the Indemnified Party may participate in such defense at such party’s expense
unless (w) the Indemnifying Party has agreed in writing to pay such fees or expenses, (x) the Indemnifying Party shall
have failed to assume the defense of such claim within a reasonable time after receipt of notice of such claim from the Indemnified
Party hereunder and employ counsel reasonably satisfactory to the Indemnified Party, (y) the Indemnified Party has reasonably
concluded (based upon advice of its counsel) that there may be legal defenses available to it or other indemnified parties that
are different from or in addition to those available to the Indemnifying Party, or (z) in the reasonable judgment of any such
person (based upon advice of its counsel) a conflict of interest may exist between such person and the Indemnifying Party with
respect to such claims (in which case, if the person notifies the Indemnifying Party in writing that such Person elects to employ
separate counsel at the expense of the Indemnifying Party, the Indemnifying Party shall not have the right to assume the defense
of such claim on behalf of such person). No Indemnifying Party, in the defense of any such claim or litigation, shall, except with
the consent of each Indemnified Party, consent to entry of any judgment or enter into any settlement that does not include as an
unconditional term thereof the giving by the claimant or plaintiff to such Indemnified Party of a release from all liability in
respect to such claim or litigation. Each Indemnified Party shall furnish such information regarding itself or the claim in question
as an Indemnifying Party may reasonably request in writing and as shall be reasonably required in connection with defense of such
claim and litigation resulting therefrom.

 

(d)          If
the indemnification provided for in this Section 2.7 is held by a court of competent jurisdiction to be unavailable
to an Indemnified Party with respect to any loss, liability, claim, damage, or expense referred to herein, then the Indemnifying
Party, in lieu of indemnifying such Indemnified Party hereunder, shall contribute to the amount paid or payable by such Indemnified
Party as a result of such loss, liability, claim, damage, or expense in such proportion as is appropriate to reflect the relative
fault of the Indemnifying Party on the one hand and of the Indemnified Party on the other in connection with the statements or
omissions that resulted in such loss, liability, claim, damage, or expense as well as any other relevant equitable considerations.
The relative fault of the Indemnifying Party and of the Indemnified Party shall be determined by reference to, among other things,
whether the untrue or alleged untrue statement of a material fact or the omission to state a material fact relates to information
supplied by the Indemnifying Party or by the Indemnified Party and the parties’ relative intent, knowledge, access to information,
and opportunity to correct or prevent such statement or omission. No person or entity will be required under this Section 2.7(d)
to contribute any amount in excess of the net proceeds from the offering received by such person or entity, except in the case
of fraud or willful misconduct by such person or entity. No person or entity guilty of fraudulent misrepresentation (within the
meaning of Section 11(f) of the Securities Act) will be entitled to contribution from any person or entity who was not guilty
of such fraudulent misrepresentation.

 

    	 	19	 

     

    

 

The obligations of the
Company and Holders under this Section 2.7 shall survive the completion of any offering of Registrable Securities in
a registration under this Section 2.7 and otherwise shall survive the termination of this Agreement until the expiration
of the applicable period of the statute of limitations.

 

2.8          Information
by Holder. Each Holder of Registrable Securities shall furnish to the Company such information regarding such Holder
and the distribution proposed by such Holder as the Company may reasonably request in writing and as shall be reasonably required
in connection with any registration, qualification, or compliance referred to in this Section 2.

 

2.9         Rule 144
Reporting. With a view to making available the benefits of certain rules and regulations of the Commission that may
permit the sale of the Restricted Securities to the public without registration, the Company agrees to:

 

(a)          Make
and keep adequate current public information with respect to the Company available in accordance with Rule 144 under the Securities
Act;

 

(b)          File
with the Commission in a timely manner all reports and other documents required of the Company under the Securities Act and the
Exchange Act; and

 

(c)          So
long as a Holder owns any Restricted Securities, furnish to the Holder forthwith upon written request a written statement by the
Company as to its compliance with the reporting requirements of Rule 144 and of the Securities Act and the Exchange Act, or
that it qualifies as registrant whose securities may be resold pursuant to Form S-3 (at any time after the Company so qualifies),
a copy of the most recent annual or quarterly report of the Company, and such other reports and documents so filed as a Holder
may reasonably request in availing itself of any rule or regulation of the Commission allowing a Holder to sell any such securities
without registration. The Company further covenants that it shall take such further action as any Holder may reasonably request
to enable such Holder to sell from time to time shares of Company Common Stock held by such Holder without registration under the
Securities Act within the limitation of the exemptions provided by Rule 144, including providing any legal opinions and cooperating
with the Holders to cause the transfer agent to remove any restrictive legend on certificates evidencing Registrable Securities).
This Section 2.9 shall survive the termination of this Agreement so long as any Holder continues to hold Registrable Securities.

 

2.10       No
Inconsistent Agreements.  The Company has not entered, as of the date hereof, nor shall the Company, on or after
the date of this Agreement, enter into any agreement with respect to its securities, that would have the effect of impairing the
rights granted to the Holders of Registrable Securities or otherwise conflict with the provisions hereof.

 

2.11       Transfer
or Assignment of Rights. This Agreement and the rights, duties and obligations of the Company hereunder may not be assigned
or delegated by the Company in whole or in part. The rights granted to a Holder by the Company under this Section 2
may be transferred or assigned (but only with all related obligations) by a Holder only to a transferee of Registrable Securities
that is a transferee or assignee of not less than 10,000 Registrable Securities (as presently constituted and subject to subsequent
adjustments for share splits, share dividends, reverse share splits and the like); provided, that (x) such transfer
or assignment of Registrable Securities is effected in accordance with applicable securities laws, (y) the Company is, within a
reasonable time after such transfer, furnished with written notice of the name and address of such transferee and the Registrable
Securities with respect to which such rights are being transferred and (z) such transferee agrees in a written instrument delivered
to the Company to be bound by and subject to the terms and conditions of this Agreement.

 

    	 	20	 

     

    

 

SECTION
3

Lock-up

 

		3.1	Initial Investor Lock-up

 

(a)          Each
Initial Investor agrees not to Transfer a number of shares of Company Common Stock equal to the number of Class A Common Stock
issued upon conversion of such Initial Investor’s Founder Shares until the earlier of (A) one year after the Closing or (B)
subsequent to the Closing, (x) if the last sale price of the Company Common Stock equals or exceeds $12.00 per share (as adjusted
for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading
day period commencing at least 150 days after the Closing or (y) following the Closing, the date on which the Company completes
a liquidation, merger, capital stock exchange, reorganization or other similar transaction that results in all of the Company’s
stockholders having the right to exchange their shares of Company Common Stock for cash, securities or other property.

 

(b)          Each
Initial Investor agrees that it, he or shall not Transfer any Private Placement Warrants (or shares of Company Common Stock issued
or issuable upon the exercise of the Private Placement Warrants) until 30 days after the Closing.

 

3.2         CPH
Management Lock-up.  Each CPH Management Holder agrees not to Transfer any shares of Company Common Stock acquired by such
CPH Management Holder in connection with the Business Combination for a period commencing on the date of Closing and ending on
the date that is (a) the first anniversary of the Closing with respect to one-third (1/3) of such CPH Management Holder’s
Registrable Securities held as of the date of Closing; (b) the second anniversary of the Closing with respect to one-third (1/3)
of such CPH Management Holder’s Registrable Securities held as of the date of Closing; and (c) the third anniversary of the
Closing with respect to one-third (1/3) of such CPH Management Holder’s Registrable Securities held as of the date of Closing.
For the avoidance of doubt, the exercise of any stock option by any CPH Management Holder shall in no way modify or extend the
dates set forth in clauses (a), (b) and (c) of the previous sentence.

 

3.3         Non-Management
CPH Lock-up. Each Non-Management CPH Holder agrees not to Transfer any shares of Company Common Stock acquired by such Non-Management
CPH Holder in connection with the Business Combination for a period commencing on the date of Closing and ending on the date that
is one hundred and eighty (180) days after the Closing.

 

    	 	21	 

     

    

 

3.4         Argand
Investor Lock-up. The Argand Investor agrees not to Transfer any shares of Company Common Stock acquired by the Argand Investor
in exchange for the Argand PIPE Shares pursuant to the Merger Agreement for a period commencing on the date of Closing and ending
on (a) if the number of shares issued to the Peninsula Holder pursuant to the terms of the Rollover Agreement to which it is a
party does not exceed the Peninsula Threshold, the date that is one hundred and eighty (180) days after the Closing, or (b) if
the number of shares issued to the Peninsula Holder pursuant to the terms of the Rollover Agreement to which it is a party exceeds
the Peninsula Threshold, the date that is one year after the Closing.

 

3.5         Permitted
Transfers. Notwithstanding the provisions set forth in Sections 3.1, 3.2, 3.3 and 3.4, nothing in this Agreement shall prohibit
Transfers with the prior written consent of the Board (with any director who has been designated to serve on the Board by or who
is an Affiliate of the requesting party abstaining from such vote) or Transfers (a) to the Company’s officers or directors,
any Affiliate or family member of any of the Company’s officers or directors or any Affiliate of the Holder transferring
such securities or to any member(s) of such Holder’s family or any of their Affiliates (including any investment fund of
which the Holder or its Affiliate serves as the general partner, managing member or discretionary manager or advisor); (b) in the
case of an individual, as a gift to such person’s immediate family or to a trust, the beneficiary of which is a member of
such person’s immediate family, an Affiliate of such person or to a charitable organization; (c) in the case of an individual,
by virtue of laws of descent and distribution upon death of such person; (d) in the case of an individual, pursuant to a qualified
domestic relations order; (e) by virtue of the laws of the State of Delaware or the organizational documents of the Holder transferring
such securities upon dissolution of such Holder; (f) pursuant to an order of a court, regulatory agency or other governmental authority;
(g) solely to tender into a tender or exchange offer for a majority of the Company’s voting securities commenced by a third
party; or (h) in the event that the Company consummates a liquidation, merger, capital stock exchange or other similar transaction
that results in all of the Company’s stockholders having the right to exchange their shares of Company Common Stock for cash,
securities or other property; provided, however, that in the case of clauses (a) through (e), these permitted transferees must
enter into a written agreement with the Company agreeing to be bound by the transfer restrictions herein.

 

3.6         Removal
of Legends. If any shares of Company Common Stock are certificated, upon the request of a holder thereof following the expiration
of the restrictions pursuant to Sections 3.1, 3.2, 3.3 or 3.4 (as applicable), the holder thereof shall
be entitled to promptly receive from the Company new certificates for a like number of shares of Company Common Stock not bearing
any legend with respect to transfer restrictions pursuant to this Agreement.

 

SECTION
4

Board
representation

 

		4.1	Initial Director
                                         Designees

 

(a)          For
so long as the Peninsula Holder has the right to nominate members to the Board pursuant to Section 4.2, the Company
shall, to the fullest extent permitted by applicable law, cause the Board (whether acting through a nominating committee of the
Board or otherwise) to (A) nominate the Peninsula Nominees(s) and include the Peninsula Nominee(s) in any slate of nominees recommended
to the Company’s stockholders for election to the Board and include such Peninsula Nominee(s) in the Company’s preliminary
and definitive proxy statements filed with the Commission for any applicable annual meeting of stockholders at which stockholders
of the Company will vote on the election of directors to the Board (or any consent in lieu of a meeting), (B) recommend that
the Company’s stockholders vote in favor of the Peninsula Nominee(s) or Peninsula Director(s), as applicable, in all subsequent
stockholder meetings at which such Peninsula Nominee(s) or Peninsula Director(s), as applicable, stand for election or reelection
to the Board, and (C) support the Peninsula Nominee(s) or Peninsula Director(s), as applicable, in a manner no less favorably
than the manner in which the Company supports its other director nominees. For any meeting (or consent in lieu of meeting) of the
Company’s stockholders for the election of members of the Board, the Board (whether acting through a nominating committee
of the Board or otherwise) shall not nominate, in the aggregate, a number of nominees greater than the number of members of the
Board.

 

    	 	22	 

     

    

 

(b)          For
so long as the Peninsula Holder has the right to nominate members of the Board pursuant to Section 4.2 if
a vacancy on the Board is created as a result of a Peninsula Director’s death, disability, resignation (other than pursuant
to Section 4.5 or removal, then the Peninsula Holder shall have the right to designate by written notice to the
Company an individual (a “Peninsula Director Replacement”) to fill such vacancy, which individual shall meet
the conditions set forth in Section 4.4. The Company shall take all actions necessary to cause the Peninsula Director
Replacement to fill such resulting vacancy and such individual shall be deemed a Peninsula Director and a Peninsula Nominee. In
the event that the Peninsula Holder is entitled to appoint at least two (2) Peninsula Directors, the Board shall, at the written
request of the Peninsula Holder, appoint one (1) Peninsula Director to serve on any committee or committees of the Board, subject
to such Peninsula Director satisfying qualification and independence rules and regulations of the applicable stock exchange on
which the Company Common Stock is listed or the Commission as in effect at the time of determination with respect to any such committees.
Each Peninsula Director shall be entitled to receive compensation in his or her capacity as a director consistent with the compensation
received in such capacity by other non-employee members of the Board, including any fees and equity awards, and reimbursement
for reasonable out-of-pocket expenses incurred in attending meetings of the Board and its committees.

 

4.2         Director
Nomination Rights. To the extent permitted by applicable law and the rules of the principal stock
exchange or market on which the Company Common Stock is then traded or listed, commencing on the date of the Closing and ending
on the date that the Company’s obligations under this Section 4.2 terminate in accordance with this Section 4.2 (the
 “Peninsula Board Right Period”): 

 

(a)          If
the Peninsula Holder’s beneficial ownership of Company Common Stock is within the Three Director Range, then the Company
shall cause the Board to nominate for election to the Board and shall recommend and support such nominations, in the manner provided
in Section 4.1(a), such number of Peninsula Nominees as is required to maintain the continuous service of three (3) Peninsula
Directors on the Board. The Company’s obligations under this Section 4.2(a) shall terminate on the first date on which
the Peninsula Holder’s beneficial ownership of issued and outstanding Company Common Stock is no longer within the Three
Director Range, following which the Peninsula Holder will cause one (1) Peninsula Director to resign as a member of the Board within
five (5) Business Days after receiving a written request from the Company.

 

    	 	23	 

     

    

 

(b)         
If the Peninsula Holder’s beneficial ownership of Company Common Stock is within Two Director Range, then the Company shall
cause the Board to nominate for election to the Board and shall recommend and support such nominations, in the manner provided
in Section 4.1(a), such number of Peninsula Nominees as is required to maintain the continuous service of two (2) Peninsula
Directors on the Board. The Company’s obligations under this Section 4.2(b) shall terminate automatically on the first
date on which the Peninsula Holder’s beneficial ownership of Company Common Stock is no longer within the Two Director Range,
following which the Peninsula Holder will cause one (1) Peninsula Director to resign as a member of the Board within five (5) Business
Days after receiving a written request from the Company.

 

(c)         
If the Peninsula Holder’s beneficial ownership of Company Common Stock is within One Director Range, then the Company shall
cause the Board to nominate for election to the Board and shall recommend and support such nomination, in the manner provided in
Section 4.1(a), such number of Peninsula Nominees as is required to maintain the continuous service of one (1) Peninsula
Director on the Board. The Company’s obligations under this Section 4.2(c) shall terminate on the first date on which
the Peninsula Holder’s beneficial ownership of Company Common Stock is no longer within the One Director Range, following
which the Peninsula Holder will cause one Peninsula Director to resign as a member of the Board within five (5) Business Days after
receiving a written request from the Company.

 

(d)          Any
Company Common Stock (or securities convertible, exercisable or exchangeable for shares of Company Common Stock ) acquired by the
Peninsula Holder or its Affiliates after the date of this Agreement shall be excluded from the number of shares of Company Common
Stock deemed beneficially owned by the Peninsula Holder for purposes of this Section 4.2.

 

4.3          Exceptions.
Notwithstanding anything herein to the contrary, the Peninsula Holder shall not have any rights to nominate an individual for election
to the Board pursuant to this Section 4, and shall cause any such individuals previously so nominated by Peninsula
Holder to resign as a member of the Board within five (5) Business Days after receiving a written request from the Company
if the Peninsula Holder or any of its Affiliates has, at any time after the date of this Agreement, (a) an employee, member
or partner (other than any third party limited partner who is an investor in the Peninsula Holder) of the Peninsula Holder (excluding
any Portfolio Company) or any of its Affiliates (other than a Portfolio Company) that is a director or executive officer of a Competitor
of the Company (each such person, a “Competitor Director”), (b) a Portfolio Company that is a Competitor of
the Company or (c) if the Peninsula Board Right Period has ended; provided, that the foregoing restrictions and
requirements shall be applied in an equivalent manner to all other non-employee Board members (including any Board member that
is an officer, director, employee or manager of the Sponsor or its Affiliate); provided, further, that the Peninsula
Holder’s right to nominate individuals to the Board pursuant to this Article 4 shall not be impaired, restricted
or rescinded in any manner, if prior to or following the appointment of any Competitor Director, the Peninsula Holder obtains the
written consent of the Board (with the Peninsula Directors abstaining) (such consent not to be unreasonably withheld, conditioned
or delayed) to such Peninsula Holder employee, member or partner (other than any third party limited partner who is an investor
in Peninsula) serving as a Competitor Director.

 

    	 	24	 

     

    

 

4.4         Peninsula
Nominee Qualifications. As a condition to any Peninsula Nominee’s appointment or nomination
to the Board pursuant to this Agreement, such Peninsula Nominee shall agree to provide to the Company information required to be
or customarily disclosed for directors, candidates for directors and their Affiliates and Representatives in a proxy statement
or other filings under applicable law or stock exchange rules or listing standards, information in connection with assessing eligibility,
independence and other criteria applicable to directors or satisfying compliance and legal obligations and such other information
as reasonably requested by the Company from time to time with respect to such Peninsula Nominee and consistent with the requirements
and requests of the Company with respect to the other non-employee Board members; provided that in no event shall
such Peninsula Director’s relationship with the Peninsula Holder or its Affiliates (or any other actual or potential lack
of independence resulting therefrom), in and of itself, be considered to disqualify such Peninsula Director from being a member
of the Board pursuant to this Article 4. Each Peninsula Nominee shall, prior to being appointed or nominated,
submit to the Company a fully completed, true and accurate copy of Company’s standard director questionnaire and other reasonable
and customary director onboarding documentation (including an authorization form to conduct a background check) required by the
Company in connection with the appointment or nomination of any new Board member. Each Peninsula Nominee shall ensure, that, at
all times while serving as a member of the Board, he or she will (i) meet all director independence and other standards of
the Company, The Nasdaq Stock Market and the SEC and applicable provisions of the Exchange Act, including Rule 10A-3, and
(ii) be qualified to serve as a director under applicable law and comply with requirements applicable to directors thereunder.
In addition, while serving as a member of the Board, each Peninsula Nominee shall comply with all policies, procedures, processes,
codes, rules, standards and guidelines of the Company that have been adopted by the Board and which are applicable to all non-employee Board
members and which have been provided in advance to such Peninsula Nominee, and shall preserve the confidentiality of Company business
and information, including discussions or matters considered in meetings of the Board or Board committees to the extent not disclosed
publicly by the Company in a manner consistent with the confidentiality requirements applicable to all non-employee Board
members; provided that, subject to the Company, such Peninsula Director and the Peninsula Holder entering into
a customary and reasonable mutually acceptable confidentiality agreement (to the extent that such an agreement is requested of
other non-employee Board members with respect to sharing of such information with their Representatives and Affiliates), such Peninsula
Director shall be entitled to discuss Company business and matters discussed at meetings of the Board with other Representatives
of the Peninsula Holder and its Affiliates so long as such interaction is covered by such confidentiality agreement and does not,
based on the advice of counsel to the Company, jeopardize any attorney-client privilege

 

4.5         Director
Indemnification. The Company shall indemnify the Peninsula Directors on the same basis as all
other members of the Board and pursuant to indemnity agreements with terms that are no less favorable to the Peninsula Directors
than the indemnity agreements entered into between the Company and other members of the Board.

 

4.6         Board
Size. Prior to the expiration of the Peninsula Board Right Period, (i) the Company shall not
increase the size of the Board to more than a total of twelve director seats; provided that the Company may temporarily increase
the size of the Board to facilitate the retirement or resignation of any incumbent director and the replacement thereof with a
new director and (ii) the Company shall not decrease the size of the Board if such decrease would require the resignation of any
Peninsula Director, in each case, without the prior written consent of the Peninsula Holder.

 

    	 	25	 

     

    

 

SECTION
5

Miscellaneous

 

5.1         Termination
of Subsidiary Registration Rights Agreement. Upon the Closing and the
effectiveness of this Agreement, the registration rights agreement dated July 26, 2017 among Industrea, the Sponsor and the holders
party thereto shall terminate and be of no further force and effect.

 

5.2         Amendment.
Except as expressly provided herein, neither this Agreement nor any term hereof may be amended, waived, discharged or terminated
other than by a written instrument referencing this Agreement and signed by (i) the Company, and (ii) the Holders holding a majority
of the Registrable Securities provided, however, that if any amendment, waiver, discharge or termination operates
in a manner that treats any Holder different from other Holders, the consent of such Holder shall also be required for such amendment,
waiver, discharge or termination. Persons who become assignees or other transferees of Registrable Securities in accordance with
this Agreement after the date of this Agreement may become parties hereto, by executing a counterpart of this Agreement without
any amendment of this Agreement pursuant to this paragraph or any consent or approval of any other Holder. Any amendment, waiver,
discharge or termination effected in accordance with this paragraph shall be binding upon each Holder and each future holder of
all such securities of such Holder.

 

5.3         Notices.
All notices and other communications required or permitted hereunder shall be in writing and shall be mailed by registered or certified
mail, postage prepaid, sent by facsimile or otherwise delivered by hand, electronic mail, messenger or courier service at the following
addresses:

 

(a)          if
to an Investor, to such Investor’s address, facsimile number or electronic mail address as shown on Exhibits A, B and
C hereto, as may be updated in accordance with the provisions hereof.

 

(b)          if
to any Holder other than an Investor, to such address, facsimile number or electronic mail address as shown in the Company’s
records, or, until any such Holder so furnishes an address, facsimile number or electronic mail address to the Company, then to
the address, facsimile number or electronic mail address of the last holder of such shares for which the Company has contact information
in its records; or

 

(c)          If
to the Company or to Industrea:

 

Concrete Pumping Holdings, Inc.

6461 Downing Street

Denver, Colorado Attn: [__]

Facsimile: [__]

E-mail: [__]

 

    	 	26	 

     

    

 

With a copy (which shall not constitute notice) to:

 

Winston & Strawn LLP

200 Park Avenue

New York, New York 10166

Attn: Dominick P. DeChiara

Facsimile: (212) 294-4700

Email: DDeChiara@winston.com

 

Each such notice or other communication shall
for all purposes of this Agreement be treated as effective or having been given (i) if delivered by hand, messenger or courier
service, when delivered (or if sent via a nationally-recognized overnight courier service, freight prepaid, specifying next-business-day
delivery, one business day after deposit with the courier), (ii) if sent via mail, at the earlier of its receipt or five (5) days
after the same has been deposited in a regularly-maintained receptacle for the deposit of the United States mail, addressed and
mailed as aforesaid, (iii) if sent via facsimile, upon confirmation of facsimile transfer, or (iv) if via email, on the date of
transmission.

 

5.4         Governing
Law. This Agreement shall be governed in all respects by the internal laws of the State of Delaware as applied to agreements
entered into among Delaware residents to be performed entirely within Delaware, without regard to principles of conflicts of law.

 

5.5         Successors
and Assigns. The provisions of this Agreement shall inure to the benefit of, and be binding upon, the successors, assigns,
heirs, executors and administrators of the parties hereto.

 

5.6         Entire
Agreement. This Agreement, the Merger Agreement, and the exhibits and schedules hereto and thereto constitute the full
and entire understanding and agreement between the parties with regard to the subjects hereof. No party hereto shall be liable
or bound to any other party in any manner with regard to the subjects hereof or thereof by any warranties, representations or covenants
except as specifically set forth herein.

 

5.7         Delays
or Omissions. Except as expressly provided herein, no delay or omission to exercise any right, power or remedy accruing
to any party to this Agreement upon any breach or default of any other party under this Agreement shall impair any such right,
power or remedy of such non-defaulting party, nor shall it be construed to be a waiver of any such breach or default, or an acquiescence
therein, or of or in any similar breach or default thereafter occurring, nor shall any waiver of any single breach or default be
deemed a waiver of any other breach or default theretofore or thereafter occurring. Any waiver, permit, consent or approval of
any kind or character on the part of any party of any breach or default under this Agreement, or any waiver on the part of any
party of any provisions or conditions of this Agreement, must be in writing and shall be effective only to the extent specifically
set forth in such writing. All remedies, either under this Agreement or by law or otherwise afforded to any party to this Agreement,
shall be cumulative and not alternative.

 

    	 	27	 

     

    

 

5.8         Remedies.
Each holder of Registrable Securities, in addition to being entitled to exercise all rights granted by law, including recovery
of damages, shall be entitled to specific performance of its rights under this Agreement. The Company acknowledges that monetary
damages would not be adequate compensation for any loss incurred by reason of a breach by it of the provisions of this Agreement
and the Company hereby agrees to waive the defense in any action for specific performance that a remedy at law would be adequate.

 

5.9         Severability.
If any provision of this Agreement becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable or
void, portions of such provision, or such provision in its entirety, to the extent necessary, shall be severed from this Agreement,
and such court will replace such illegal, void or unenforceable provision of this Agreement with a valid and enforceable provision
that will achieve, to the extent possible, the same economic, business and other purposes of the illegal, void or unenforceable
provision. The balance of this Agreement shall be enforceable in accordance with its terms.

 

5.10       Titles
and Subtitles. 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. All references in this Agreement to sections, paragraphs and exhibits shall, unless
otherwise provided, refer to sections and paragraphs hereof and exhibits attached hereto.

 

5.11       Counterparts.
This Agreement may be executed in any number of counterparts, each of which shall be enforceable against the parties that execute
such counterparts, and all of which together shall constitute one instrument.

 

5.12       Telecopy
Execution and Delivery. A facsimile, telecopy, portable document format (“PDF”) or other reproduction
of this Agreement may be executed by one or more parties hereto and delivered by such party by facsimile, PDF or any similar electronic
transmission device pursuant to which the signature of or on behalf of such party can be seen. Such execution and delivery shall
be considered valid, binding and effective for all purposes. At the request of any party hereto, all parties hereto agree to execute
and deliver an original of this Agreement as well as any facsimile, telecopy or other reproduction hereof.

 

5.13       Further
Assurances. Each party hereto agrees to execute and deliver, by the proper exercise of its corporate, limited liability
company, partnership or other powers, all such other and additional instruments and documents and do all such other acts and things
as may be necessary to more fully effectuate this Agreement.

 

5.14       Attorneys’
Fees. In the event that any suit or action is instituted to enforce any provision in this Agreement, the prevailing
party in such dispute shall be entitled to recover from the losing party such reasonable fees and expenses of attorneys and accountants,
which shall include, without limitation, all fees, costs and expenses of appeals.

 

5.15       Aggregation
of Stock. All securities held or acquired by affiliated entities of or persons shall be aggregated together for purposes
of determining the availability of any rights under this Agreement.

 

    	 	28	 

     

    

 

5.16       Jury
Trial Consent to Jurisdiction. Any
judicial proceeding brought with respect to this Agreement must be brought in any court of competent jurisdiction in the State
of Delaware, and, by execution and delivery of this Agreement, each party (a) accepts, generally and unconditionally, the exclusive
jurisdiction of such courts and any related appellate court, and irrevocably agrees to be bound by any judgment rendered thereby
in connection with this Agreement; and (b) irrevocably waives any objection it may now or hereafter have as to the venue of any
such suit, action or proceeding brought in such a court or that such court is an inconvenient forum. Nothing in this Section,
however, shall affect the right of any party to serve legal process in any other manner permitted by law or at equity. Each party
agrees that a final judgment in any action or proceeding so brought shall be conclusive and may be enforced by suit on the judgment
or in any other manner provided by law or at equity.
EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY LAW, ANY AND ALL RIGHT
TO TRIAL BY JURY IN ANY LEGAL PROCEEDING (WHETHER SOUNDING IN CONTRACT, TORT OR OTHERWISE) ARISING OUT OF OR RELATED TO THIS AGREEMENT.

 

5.17       No
Recourse. This Agreement may only be enforced against, and any claim or cause of action based upon, arising out of, or related
to this Agreement or the transactions contemplated hereby may only be brought against, the entities that are expressly named as
parties hereto and then only with respect to the specific obligations set forth herein with respect to such party. Except to the
extent a named party to this Agreement (and then only to the extent of the specific obligations undertaken by such named party
in this Agreement and not otherwise), no past, present or future director, officer, employee, incorporator, member, partner, stockholder,
Affiliate, agent, attorney, advisor or representative or Affiliate of any of the foregoing shall have any liability (whether in
contract, tort, equity or otherwise) for any one or more of the covenants, agreements or other obligations or liabilities of any
one or more of the Company, Industrea or any Investor or Holder under this Agreement (whether for indemnification or otherwise)
or of or for any claim based on, arising out of, or related to this Agreement or the transactions contemplated hereby.

 

[Signature pages follow]

 

    	 	29	 

     

    

 

IN WITNESS WHEREOF, the
parties have duly executed this Stockholders Agreement as of the date first written above.

 

	 	CONCRETE PUMPING HOLDINGS

                    ACQUISITION CORP.

	 	 	 
	 	By:	 
	 	 	Name:  
	 	 	Title:
	 	 	 
	 	INDUSTREA ACQUISITION CORP.
	 	 	 
	 	By:	 
	 	 	Name:  
	 	 	Title:

 

[Signature Page to Stockholders Agreement]

 

     

     

    

 

IN WITNESS WHEREOF, the
parties have duly executed this Stockholders Agreement as of the date first written above.

 

	 	INVESTORS:
	 	 	 
	 	INDUSTREA ALEXANDRIA LLC
	 	 	 
	 	By:	 
	 	 	Name:
	 	 	Title:

 

	 	ARGAND PARTNERS FUND, LP
	 	 	 
	 	By: Argand Partners Fund GP-GP, Ltd, it’s General Partner
	 	 	 
	 	By:	 
	 	 	Name:
	 	 	Title:
	 	 	 
	 	 
	 	David A.B. Brown
	 	 	 
	 	 
	 	Thomas K. Armstrong, Jr.
	 	 	 
	 	 
	 	David G. Hall
	 	 	 
	 	 
	 	Brian Hodges
	 	 	 
	 	 
	 	Gerard F. Rooney
	 	 	 
	 	 
	 	[OTHER INVESTORS]

 

[Investor Signature Page to Stockholders
Agreement]

 

     

     

    

 

EXHIBIT A

 

INITIAL INVESTORS

 

	Name	 	
        Address, Fax Number

        or Email for Notices
	 	Number of Shares
	 	 	 	 	 
	
        Industrea Alexandria LLC

         
	 	
        28 West 44th Street, Suite 501

        New York, New York 10036

        Facsimile: [________]

        E-mail: [________]
	 	[_______]
	 	 	 	 	 
	David A.B. Brown	 	
        [________]

        [________]

        Facsimile: [________]

        E-mail: [________]
	 	[_______]
	 	 	 	 	 
	Thomas K. Armstrong, Jr.	 	
        [________]

        [________]

        Facsimile: [________]

        E-mail: [________]
	 	[_______]
	 	 	 	 	 
	David G. Hall	 	
        [________]

        [________]

        Facsimile: [________]

        Email: [________]
	 	[_______]
	 	 	 	 	 
	Brian Hodges	 	
        [________]

        [________]

        Facsimile: [________]

        Email: [________]
	 	[_______]
	 	 	 	 	 
	Gerard F. Rooney	 	
        [________]

        [________]

        Facsimile: [________]

        Email: [________]
	 	[_______]

 

    	 	A - 1	 

     

    

 

EXHIBIT B

 

CPH MANAGEMENT HOLDERS

 

	Name	 	
        Address, Fax Number

        or Email for Notices
	 	Number of Shares
	 	 	 	 	 
	
        Bruce Young

         
	 	
        [________]

        [________]

        Facsimile: [________]

        E-mail: [________]
	 	[_______]
	 	 	 	 	 
	
        Iain Humphries

         
	 	
        [________]

        [________]

        Facsimile: [________]

        E-mail: [________]
	 	[_______]
	 	 	 	 	 
	
        [________]

         
	 	
        [________]

        [________]

        Facsimile: [________]

        E-mail: [________]
	 	[_______]
	 	 	 	 	 
	
        [________]

         
	 	
        [________]

        [________]

        Facsimile: [________]

        Email: [________]
	 	[_______]
	 	 	 	 	 
	
        [________]

         
	 	
        [________]

        [________]

        Facsimile: [________]

        Email: [________]
	 	[_______]
	 	 	 	 	 
	
        [________]

         
	 	
        [________]

        [________]

        Facsimile: [________]

        Email: [________]
	 	[_______]

 

    	 	B - 1	 

     

    

 

EXHIBIT C

 

NON-MANAGEMENT CPH HOLDERS

 

	Name	 	
        Address, Fax Number

        or Email for Notices
	 	Number of Shares
	 	 	 	 	 
	
        BBCP Investors, LLC

         
	 	
        c/o Peninsula Pacific

        10250 Constellation Blvd #2230

        Los Angeles, CA 90067

        Attention: Mary Ellen Kanoff, General Counsel

        Email: mkanoff@peninsulapacific.com
	 	[_______]
	 	 	 	 	 
	John Hudek	 	
        [________]

        [________]

        Facsimile: [________]

        E-mail: [________]
	 	[_______]
	 	 	 	 	 
	Robert Bruce Woods	 	
        [________]

        [________]

        Facsimile: [________]

        E-mail: [________]
	 	[_______]
	 	 	 	 	 
	William K. Wood	 	
        [________]

        [________]

        Facsimile: [________]

        E-mail: [________]
	 	[_______]
	 	 	 	 	 
	Joel Silkett	 	
        [________]

        [________]

        Facsimile: [________]

        Email: [________]
	 	[_______]
	 	 	 	 	 
	Richard Hansen	 	
        [________]

        [________]

        Facsimile: [________]

        Email: [________]
	 	[_______]
	 	 	 	 	 
	Dale C. Bone	 	
        [________]

        [________]

        Facsimile: [________]

        Email: [________]
	 	[_______]

 

    	 	C - 1	 

     

    

 

Annex A

 

ROLLOVER HOLDER REPRESENTATIONS

 

This Annex A is incorporated
into that certain Rollover Agreement (the “Rollover Agreement”) to which this Annex A is attached. Capitalized
terms used herein but not defined herein have the respective meanings given them in the Rollover Agreement. The Newco Common Shares
to be acquired by the Rollover Holder pursuant to the Rollover Agreement in respect of Rollover Shares and Rollover ISOs are referred
to in this Annex A as the “Investment.”

 

		I.	Rollover Holder Awareness

 

The Rollover Holder has been
furnished with and has read the Rollover Agreement, the Merger Agreement and the Stockholders Agreement. The Rollover Holder is
aware and acknowledges that:

 

(1)          Newco
has only recently been formed and has no financial or operating history.

 

(2)          There
are substantial risks incident to the Investment.

 

(3)          No
federal or state agency has made any finding or determination as to the fairness of the Investment.

 

(4)          The
Rollover Holder has had an opportunity to consult with his own tax advisor regarding all United States federal, state, local and
foreign tax considerations applicable to the Investment. None of Newco or any of its Affiliates, employees, agents, members, equity
holders, directors, officers, representatives or consultants, assume any responsibility for the tax consequences to the Rollover
Holder of the acquisition or ownership of the Investment; provided, that Newco, Industrea and Concrete Parent shall comply with
their obligations under the Merger Agreement and under the Rollover Agreement.

 

(5)          The
Rollover Holder may be required to bear the economic risk of the Investment for an indefinite period of time because the Investment
has not been registered for sale under the United States Securities Act of 1933, as amended (the “Securities Act”),
and therefore cannot be sold or otherwise transferred unless either the Investment is subsequently registered under the Securities
Act, or an exemption from such registration is available, and the Investment cannot be sold or otherwise transferred unless it
is registered under applicable state securities or an exemption from such registration is available.

 

(6)          The
Rollover Holder’s right to transfer the Investment will be restricted by the terms of the Stockholders Agreement.

 

		II.	Acknowledgment, Release and Waiver of Claims

 

(1)          As
a material inducement to the parties to consummate the Merger and as a condition to the ISO Conversion and the Investment, the
Rollover Holder hereby:

 

A.       acknowledges
and agrees that the treatment of the Rollover Holder’s Rollover ISOs in connection with the Merger has been conducted in
all respects in accordance with the terms and conditions of the applicable award agreement(s) and the Company’s 2015 Equity
Incentive Plan, as amended (including, without limitation, any notice provisions thereof) and that, to the extent that such treatment
constitutes a variation or modification of any such terms and conditions (if any), so long as such variation or modification does
not result in a materially adverse consequence to the Rollover Holder, the Rollover Holder hereby consents and agrees to any such
variations or modifications:

 

     

     

    

 

B.        acknowledges
and agrees that the ISO Conversion and the Rollover Holder’s receipt of the Converted Options and amounts described in the
Rollover Agreement are in full satisfaction of the Company’s obligations with respect to the Rollover ISOs; and

 

C.        irrevocably
waives, releases and discharges Newco, Industrea, the Company and each of their respective affiliates and successors (together
with the current and former directors, officers, employees, consultants, contractors, agents, stockholders and representatives
of such entities, the “Released Parties”) from any and all claims, demands, proceedings, causes of action, orders,
obligations, contracts, agreements, taxes, penalties, interest, debts and liabilities whatsoever, whether known or unknown, suspected
or unsuspected, anticipated or unanticipated, both at law and in equity, which the Rollover Holder can, shall or may have against
the Released Parties, in each case, related to or arising under or in connection with the Rollover Shares, the Rollover ISOs or
any other equity or equity-linked award denominated in Common Shares, the treatment of the Rollover ISOs in the Merger, any rights,
interests or entitlements under or in connection with the 2015 Equity Incentive Plan or any award thereunder and any award agreements
thereunder or ancillary documents thereto (or any amendment or modification to any of the foregoing), in any case, that now exists
or may hereafter accrue based on the foregoing matters, whether now known or unknown (collectively, the “Released Claims”).
Notwithstanding the foregoing, this release shall not extend to the ISO Conversion and the Rollover Holder’s right to receive
the Converted Options and amounts described in the Rollover Agreement.

 

(2)          The
Rollover Holder acknowledges that the Rollover Holder has been advised to consult with legal counsel and, if a California resident,
is familiar with the provisions of California Civil Code Section 1542, a statute that otherwise prohibits the release of unknown
claims, which provides as follows:

 

“A general
release does not extend to claims which the creditor does not know or suspect to exist in his or her favor at the time of executing
the release, which if known by him or her must have materially affected his or her settlement with the debtor.”

 

The Rollover Holder, if
a California resident, being aware of said code section and any similar, applicable state law, agrees to expressly waive any rights
that the Rollover Holder may have thereunder, as well as under any other statute or common law principles of similar effect with
respect to the Released Claims. The Rollover Holder acknowledges and agrees that the Rollover Holder may discover new or additional
facts or information subsequent to the execution of the Rollover Agreement and that any such new or additional facts and information
shall not affect the validity or enforceability of this release and waiver. The Rollover Holder agrees to take any and all actions
and to execute and deliver any and all documents that may reasonably be requested in order to accomplish the intent of this release
and waiver of claims.

 

		III.	Additional Representations and Warranties of the Rollover
Holder

 

(1)         The
Rollover Holder is empowered, authorized and qualified to comply with its obligations contained in the Rollover Agreement and the
Stockholders Agreement. Each of the Rollover Agreement and the Stockholders Agreement has been, or as of the Rollover Closing will
be, duly executed and delivered on behalf of the Rollover Holder and each constitutes, or as of the Rollover Closing will constitute,
the valid and binding agreement of the Rollover Holder, enforceable against the Rollover Holder in accordance with its terms.

 

     

     

    

 

(2)         The
execution, delivery and performance of each of the Rollover Agreement and the Stockholders Agreement by the Rollover Holder does
not and will not result in a breach of any of the terms of, or constitute a default under, any agreement to which the Rollover
Holder is a party or by which the Rollover Holder is bound, or require any authorization or approval under or pursuant to the foregoing,
or violate any law, order or decree to which the Rollover Holder is subject, which default or violation would impair the Rollover
Holder’s ability to carry out its obligations under any of the Rollover Agreement and the Stockholders Agreement.

 

(3)         The
Rollover Holder is the legal and beneficial owner of the Rollover Shares and Rollover ISOs, and owns the Rollover Shares and Rollover
ISOs free and clear of all encumbrances. The Rollover Holder has full right, power and authority to transfer and deliver valid
title to the Rollover Shares and Rollover ISOs. The Rollover Holder has not assigned, conveyed, or transferred, or attempted or
purported to assign, convey, or transfer, in any manner or degree whatsoever, to any Person any right, title or interest in or
to the Rollover Shares or Rollover ISOs.

 

(4)         Exhibit
B sets forth the number and class of shares of Company Stock and the number of shares of Common Stock subject to options (including
the grant date and exercise price with respect thereto) held by the Rollover Holder as of the date hereof.

 

(5)         The
Rollover Holder has not exercised the Rollover ISOs, in whole or in part, prior to the Closing.

 

(6)         There
is no claim, action, suit, legal proceeding or investigation, pending or threatened against the Rollover Holder which questions
or challenges the Rollover Holder’s ownership of the Rollover Shares or Rollover ISOs or validity of the Rollover Agreement
or any action taken by the Rollover Holder or to be taken pursuant to the Rollover Agreement.

 

(7)         The
Rollover Holder is not acquiring the Investment as a result of any advertisement, article, notice or other communication published
in any newspaper, magazine or similar media or broadcast over television or radio, any seminar or meeting, or any solicitation
of a subscription by a person not previously known to the Rollover Holder in connection with investments in securities generally.

 

(8)         The
Rollover Holder is an “Accredited Investor” (as defined in Rule 501 promulgated under the Securities Act of 1933, as
amended).

 

(9)         The
Rollover Holder has been furnished all materials relating to Newco and the Investment that the Rollover Holder has requested and
has been afforded the opportunity to ask questions and receive answers concerning the terms and conditions of the offering and
obtain any additional information regarding the Investment which Newco possesses or can acquire without unreasonable effort or
expense.

 

(10)       Representatives
of Newco have answered all inquiries that the Rollover Holder has made of them concerning Newco and their Affiliates, or any other
matters relating to the formation and proposed operation of Newco and the offering and sale of the Investment. The Rollover Holder
acknowledges that none of Newco or any Affiliate thereof has rendered or will render any investment advice or securities valuation
advice to the Rollover Holder, and that the Rollover Holder is neither subscribing for nor acquiring the Investment in reliance
upon, or with the expectation of, any such advice.

 

     

     

    

 

(11)       The
Rollover Holder has not been furnished any offering literature with respect to the Investment or Newco. In addition, no representations
or warranties have been made to the Rollover Holder with respect to the Investment or Newco, and the Rollover Holder has not relied
upon any such representation or warranty in making this subscription.

 

(12)       The
Rollover Holder has such knowledge and experience in financial and business matters that the Rollover Holder is capable of evaluating
the merits and risks of the Investment and of making an informed investment decision with respect thereto.

 

(13)       The
Rollover Holder is relying on its own investigation and analysis in making the Investment, and has consulted its own legal, tax,
financial and accounting advisors to determine the merits and risks thereof.

 

(14)       The
Rollover Holder is not relying on any due diligence investigation that Industrea Acquisition Corp. and/or its Affiliates and advisors
may have conducted with respect to the Company or any of its Affiliates. Except to the extent set forth in Annex B of the Rollover
Agreement, none of Newco, Industrea Acquisition Corp. and/or its Affiliates, nor any of their respective current or former equity
holders, members, managers, partners, officers, directors, employees, affiliates or advisors (i) makes any representation or warranty
as to the Information nor represents or warrants the Information as being all-inclusive or to contain all information that may
be desirable or required in order to properly evaluate the Investment or (ii) will have any liability with respect to any use or
reliance upon any of the Information.

 

(15)       The
Rollover Holder is able to bear the economic risks of the Investment and consequently, without limiting the generality of the foregoing,
is able to hold the Investment for an indefinite period of time and has sufficient net worth to sustain a loss of the entire Investment
in the event such loss should occur.

 

(16)       The
Rollover Holder is acquiring the Investment for the Rollover Holder’s own account as principal for investment purposes and
not with a view to the distribution or sale thereof, subject to any requirement of law that its property at all times be within
its control.

 

(17)       The
Rollover Holder acknowledges and agrees that except as required to comply with applicable Law, at all times on and after the date
hereof, the Rollover Holder shall not (and shall cause the Rollover Holder’s respective controlled Affiliates not to and
shall direct the Rollover Holder’s Representatives not to) make any statements to any third party with respect to (a) the
Merger Agreement, the existence of the Merger Agreement, the Concrete Merger and Transactions or the existence of the Transaction
Documents (including this Letter of Transmittal) or (b) any trade secret and other material confidential information concerning
the businesses, affairs and assets of the Industrea Parties, the Company or any of their respective Affiliates, including methods
or systems of its operation or management, or information regarding its financial matters (collectively, “Confidential
Information”); provided, that “Confidential Information” shall not include information which is or
becomes generally available to the public other than as a result of an unpermitted disclosure by the Rollover Holder or its Affiliate
or Representative or is independently developed by the Rollover Holder or its Affiliate or Representative without the use of Confidential
Information, and this provision shall not prohibit (x) disclosures by the Rollover Holder, its Affiliates or Representatives to
the Rollover Holder’s Affiliates and the Rollover Holder’s and the Rollover Holder’s Affiliates’ Representatives
or (y) if the Rollover Holder or its Affiliates have direct or indirect third-party investors (whether actual or prospective),
disclosures to such actual or prospective investors of information regarding the Transactions reasonably necessary in connection
with the Rollover Holder’s or its Affiliates’ fundraising activities or to satisfy the Rollover Holder’s customary
reporting requirements; provided, further, that in all cases the same are obligated to maintain the confidentiality
of the information provided. Notwithstanding the foregoing, in the event that the Rollover Holder is requested or required to disclose
any Confidential Information (by oral request or request for information or documents in any legal proceeding, interrogatory, subpoena,
civil investigative demand or other similar legal or regulatory process), the Rollover Holder shall (i) to the extent permitted,
as promptly as practicable notify the Industrea Parties and/or the Company of the request or requirement so that the Industrea
Parties and/or the Company may seek (at their sole cost and expense) a protective order and (ii) reasonably cooperate (at the sole
cost and expense of the Industrea Parties) with the affected Industrea Party and its Affiliates in connection therewith; provided,
that none of the Rollover Holder or its Affiliates shall be required to provide such notice to the Industrea Parties or the Company
in connection with a routine audit or investigation conducted by a governmental, regulatory or self-regulatory authority that does
not primarily relate to the Company, the Industrea Parties or Confidential Information.

 

     

     

    

 

(18)       The
Rollover Holder recognizes that Newco’s issuance and sale of the Investment to the Rollover Holder will be based upon the
Rollover Holder’s representations, warranties and covenants set forth above. All representations, warranties and covenants
contained in the Rollover Agreement (including this Annex A) shall survive the consummation of the transactions set forth therein.

 

		IV.	Certain Restrictions on Transferability

 

The Rollover Holder acknowledges
and agrees that the following restrictions and limitations are applicable to any resale or other transfer of the Investment:

 

(1)         The
Investment shall not be sold or otherwise transferred to the extent such sale or transfer is restricted by the Stockholders Agreement
and, if so restricted, may only be sold or transferred if the applicable provisions set forth in the Stockholders Agreement are
satisfied.

 

(2)         The
Investment shall not be sold or otherwise transferred unless in compliance with all applicable securities laws.

 

     

     

    

 

Annex D

 

NEWCO REPRESENTATIONS

 

This Annex B is incorporated
into that certain Rollover Agreement (the “Rollover Agreement”) to which this Annex B is attached. Capitalized
terms used herein but not defined herein have the respective meanings given them in the Rollover Agreement.

 

(1)       Newco is empowered, authorized
and qualified to comply with its obligations contained in the Rollover Agreement and the Stockholders Agreement. Each of the Rollover
Agreement and the Stockholders Agreement has been, or as of the Rollover Closing will be, duly executed and delivered on behalf
of Newco and each constitutes, or as of the Rollover Closing will constitute, the valid and binding agreement of Newco, enforceable
against Newco in accordance with its terms.

 

(2)       The execution, delivery
and performance of each of the Rollover Agreement and the Stockholders Agreement by Newco does not and will not (i) result in a
breach of any of the terms of, or constitute a default under, any agreement to which Newco is a party or by which any of its properties
or assets are bound, or require any authorization or approval under or pursuant to the foregoing, or violate any law, order or
decree to which Newco is subject, which default or violation would impair Newco’s ability to carry out its obligations under
any of the Rollover Agreement and the Stockholders Agreement or (ii) require Newco to obtain any consent, waiver, authorization
or order of, give any notice to, or make any filing or registration with, any Governmental Authority or self-regulatory organization
(including The Nasdaq Stock Market (“Nasdaq”)), other than (x)  the filing of a Notice of Exempt Offering
of Securities on Form D with the SEC under Regulation D of the Securities Act and those required by Nasdaq.

 

(3)       Upon consummation of
the Rollover Closing, the Issued Newco Shares, when issued and delivered pursuant to the terms of the Rollover Agreement, will
be validly issued, fully paid and non-assessable and will not have been issued in violation of any preemptive rights created under
Newco’s certificate of incorporation or the Delaware General Corporation Law. Upon consummation of the Rollover Closing,
the Newco Common Shares will be approved for listing, subject only to official notice of the issuance, on Nasdaq under the symbol
 “BBCP.”.

 

(4)       As of the date hereof,
the authorized share capital of Industrea consists of 200,000,000 shares of Class A Common Stock, 20,000,000 shares of Class B
common stock, par value $0.0001 per share (“Class B Common Stock” and together with the Class A Common Stock,
 “Common Stock”), and 1,000,000 shares of preferred stock, par value $0.0001 per share (“Preferred Stock”).
As of the date hereof: (i) 23,000,000 shares of Class A Common Stock, 5,750,000 shares of Class B Common Stock and
no shares of Preferred Stock are issued and outstanding; (ii) 34,100,000 warrants, each exercisable to purchase one share
of Class A Common Stock at $11.50 per share (“Warrants”), are issued and outstanding, including 11,100,000 private
placement warrants; and (iii) no shares of Common Stock are subject to issuance upon exercise of outstanding options. No Warrants
are exercisable on or prior to the Closing. As of the date hereof Industrea Alexandria LLC is, and as of immediately prior to the
Rollover Closing Industrea Alexandria LLC will be, the record and beneficial owner of no less than 5,750,000 shares of Class B
Common Stock. All (i) issued and outstanding shares of Common Stock have been duly authorized and validly issued, are fully
paid and are non-assessable and are not subject to preemptive rights and (ii) outstanding Warrants have been duly authorized
and validly issued, are fully paid and are not subject to preemptive rights. Except as set forth above and pursuant to the Subscription
Agreements (as defined in the Merger Agreement), the other Rollover Agreements (as defined in the Merger Agreement), the UK Put/Call
Agreement and the Merger Agreement, there are no outstanding options, warrants or other rights to subscribe for, purchase or acquire
from Industrea or Newco any shares of Common Stock or other equity interests in Industrea or Newco (collectively, “Equity
Interests”) or securities convertible into or exchangeable or exercisable for Equity Interests. As of the date hereof,
other than with respect to Newco, Concrete Parent, Concrete Merger Sub, and Industrea Merger Sub, Industrea has no subsidiaries
and does not own, directly or indirectly, interests or investments (whether equity or debt) in any person, whether incorporated
or unincorporated. There are not any stockholder agreements, voting trusts or other agreements or understandings to which Industrea
or Newco is a party or by which either is bound relating to the voting of any Equity Interests, other than (A) the letter agreements
entered into by Industrea in connection with Industrea’s initial public offering on August 1, 2017 pursuant to which Industrea
Alexandria LLC and Industrea’s executive officers and independent directors agreed to vote in favor of any proposed Business
Combination (as defined therein), which includes the Transaction, and (B) as contemplated by the Merger Agreement.

 

     

     

    

 

(5)       Except for such matters
as have not had and would not be reasonably likely to have a material adverse effect on Industrea’s or Newco’s ability
to consummate the transactions contemplated hereby, including the issuance and sale of the Shares, as of the date hereof, there
is no (i) suit, action, proceeding or arbitration before a governmental authority or arbitrator pending, or, to the knowledge
of Industrea or Newco, threatened against Industrea or Newco or (ii) judgment, decree, injunction, ruling or order of any
governmental authority or arbitrator outstanding against Industrea or Newco.

 

(6)       Assuming the accuracy
of the Rollover Holders’ representations and warranties set forth in Annex A, no registration under the Securities Act is
required for the offer and issuance of the Issued Newco Shares and/or Converted ISOs by Newco to the Rollover Holders.

 

(7)       Neither Newco nor any
person acting on its behalf has engaged or will engage in any form of general solicitation or general advertising (within the meaning
of Regulation D) in connection with any offer or sale of the Issued Newco Shares or Converted ISOs.

 

(8)       Newco is not acquiring
the Rollover Shares and/or Rollover ISOs as a result of any advertisement, article, notice or other communication published in
any newspaper, magazine or similar media or broadcast over television or radio, any seminar or meeting, or any solicitation of
a subscription by a person not previously known to Newco in connection with investments in securities generally.

 

(5)       Newco
is an “Accredited Investor” (as defined in Rule 501 promulgated under the Securities Act of 1933, as amended).

 

(6)       Newco
is able to bear the economic risks of an investment in the Rollover Shares and Rollover ISOs and consequently, without limiting
the generality of the foregoing, is able to hold the Rollover Shares and Rollover ISOs for an indefinite period of time and has
sufficient net worth to sustain a loss of the entire investment in the Rollover Shares and/or Rollover ISOs in the event such loss
should occur.

 

(7)       Newco
is acquiring the Rollover Shares and Rollover ISOs for Newco’s own account as principal for investment purposes and not with
a view to the distribution or sale thereof, subject to any requirement of law that its property at all times be within its control.

 

(8)       All
representations, warranties and covenants contained in the Rollover Agreement (including this Annex B) shall survive the consummation
of the transactions set forth therein.

 

     

     

    

 

 

SPOUSAL CONSENT

 

I am the spouse of ______________,
an individual party to the Rollover Agreement, dated [________], 2018 (the “Agreement”), by and between Newco
and the Rollover Holder (as defined in the Agreement). I acknowledge that I have read the Agreement, and I understand its provisions.
I hereby consent to those provisions insofar as I have or may have had any interest in any Rollover Shares (as defined in the Agreement)
owned by my spouse and/or me.

 

I further agree that I
will not take, or attempt to take any action (by will, trust or otherwise) which will in any manner defeat or impair the intent
and purposes of the Agreement and that any representation, acknowledgement or waiver made by my spouse therein shall be deemed
for all purposes my representation, acknowledgement or waiver as well.

 

I agree that I will bequeath
my interest in the Rollover Shares and/or Rollover ISOs, or any part thereof, to my spouse, if I predecease my spouse. I direct
that the residuary clause in my will shall not be deemed to apply to my community interest in the Rollover Shares and Rollover
ISOs.

 

Dated: ___________, 2018

 

	 	 
	 	 	 
	Printed Name:Exhibit 10.3

 

THE VENDORS

 

and

 

LUX CONCRETE HOLDINGS II S.À R.L.

 

and

 

CONCRETE PUMPING HOLDINGS ACQUISITION
CORP.

 

 

 

SHARE PURCHASE AGREEMENT

 

related to

 

CAMFAUD GROUP LIMITED

 

 

 

 

 

99 Bishopsgate

London EC2M 3XF

United Kingdom

Tel: +44.20.7710.1000

www.lw.com

 

     

     

    

 

TABLE OF CONTENTS

 

	Clause	 	Page
	 	 	 
	1.	DEFINITIONS AND INTERPRETATIOn	1
	2.	SALE OF SHARES and existing loans	6
	3.	CONSIDERATION	6
	4.	[reserved]	7
	5.	COMPLETION	7
	6.	Waiver; release.	9
	7.	WARRANTIES of the Vendors	9
	8.	WARRANTIES OF THE PURCHASER AND TOPCO	10
	9.	Escrow; holder representative	10
	10.	CONFIDENTIALITY AND ANNOUNCEMENTS	11
	11.	TERMINATION	12
	12.	FURTHER ASSURANCE	12
	13.	ENTIRE AGREEMENT AND REMEDIES	12
	14.	POST-COMPLETION EFFECT OF AGREEMENT	13
	15.	WAIVER AND VARIATION	13
	16.	INVALIDITY	14
	17.	ASSIGNMENT	14
	18.	NOTICES	14
	19.	COSTS	16
	20.	RIGHTS OF THIRD PARTIES	16
	21.	COUNTERPARTS	16
	22.	GOVERNING LAW AND JURISDICTION	16
	Schedule 1	1
	 	The vendors	 
	Schedule 2	1
	 	PARTICULARS OF THE COMPANY	 
	Schedule 3	2
	 	COMPLETION OBLIGATIONS	 
	Schedule 4	3
	 	vendor WARRANTIES	 
	Schedule 5	1
	 	purchaser and topco WARRANTIES	 
	Schedule 6	2
	 	Put/Call Agreement	 

 

     

     

    

 

THIS AGREEMENT is made on September
7, 2018

 

BETWEEN

 

		(1)	THE PERSONS whose names and addresses are set out in Schedule 1 (the “Vendors”);

 

		(2)	LUX CONCRETE HOLDINGS II S.À R.L., a private limited liability company (société
 à responsabilité limitée), duly incorporated and existing under Luxembourg law, with registered office
at 560A, rue de Neudorf, L-2220 Luxembourg, Grand Duchy of Luxembourg, registered with the Luxembourg Trade and Companies Register
(Registre de Commerce et des Sociétés) under number B 210789 (the “Purchaser”); and

 

		(3)	CONCRETE PUMPING HOLDINGS ACQUISITION CORP., a
corporation incorporated in Delaware (“TopCo”).

 

WHEREAS

 

The Vendors wish to sell and the Purchaser
wishes to acquire all of the Shares and Existing Loans on the terms of this Agreement.

 

IT IS AGREED THAT

 

		1.	DEFINITIONS AND INTERPRETATIOn

 

		1.1	In this Agreement, unless the context otherwise requires:

 

“Affiliate”
means:

 

		(a)	in the case of a person which is a body corporate, any subsidiary undertaking or parent undertaking
of that person and any subsidiary undertaking of any such parent undertaking or any entity which manages and/or advises any such
entity, in each case from time to time;

 

		(b)	in the case of a person that is an individual, any spouse, co-habitee and/or lineal descendants
by blood or adoption or any person or persons acting in its or their capacity as trustee or trustees of a trust of which such individual
is the settler or any company controlled directly or indirectly by any aforementioned persons or in which such aforementioned persons
have 20% or more of the voting power at a general meeting of such company or 20% or more of the equity share capital of such company;

 

		(c)	any Affiliate of any person in paragraphs (a) and (b) above,

 

but shall not include the Company;

 

“Agreed
Form” means, in relation to a document, the form of that document initialled by or on behalf of each of the parties for
identification;

 

“Authority”
means any competent governmental, administrative, supervisory, regulatory, judicial, determinative, disciplinary, enforcement or
tax raising body, authority, agency, board, department, court or tribunal of any jurisdiction and whether supranational, national,
regional or local;

 

“Business
Day” means a day (other than a Saturday or Sunday) on which banks in the City of London, Luxembourg or the United States
are open for ordinary banking business;

 

“Board”
means the board of directors of the Company.

 

    	 	1	 

     

    

 

“Camfaud
Articles” means the Articles of Association of the Company as in effect on the date hereof.

 

“Closing
Statement” has the meaning given in Clause 5.

 

“Company”
means Camfaud Group Limited, a private limited company incorporated under the laws of England and Wales, with registered number
10473517 and having its registered office at High Road, Thornwood Common, Epping, Essex, United Kingdom, CM16 6LU;

 

“Completion”
means completion of the sale and purchase of the Shares and Existing Loans in accordance with Clause 5;

 

“Completion
Date” has the meaning given to the term “Closing Date” in the Master Merger Agreement;

 

“Confidential
Information” has the meaning given in Clause 10.1;

 

“Consideration”
means the Share Consideration and the Loan Consideration;

 

“Corporate
Entities” has the meaning given in the definition of “Put/Call Agreement” below;

 

“Deed
of Termination” means the Agreed Form Deed of Termination due to be executed at Completion which will terminate the Investment
Agreement;

 

“Encumbrance”
means any interest or equity of any person (including any right to acquire, option or right of pre-emption), any mortgage, charge,
pledge, lien, assignment, hypothecation, security interest (including any created by Law), title retention or other security agreement
or arrangement;

 

“Enterprise
Value” means £88,362,440.

 

“Enterprise
Value Amount” means an amount in sterling equal to the Relevant Percentage of the Enterprise Value.

 

“Escrow
Agent” means Citibank;

 

“Escrow
Agreement” has the meaning given in the Master Merger Agreement.

 

“Exchange
Loan Note Instrument” means the agreed form fixed rate denominated unsecured loan notes to be constituted by the Purchaser
pursuant to an instrument dated on or around Completion in the Agreed Form;

 

“Exchange
Loan Notes” means the loan notes constituted by the Exchange Loan Note Instrument;

 

“Existing
Loans” means the aggregate of (i) the principal of £3,080,040, (ii) plus the amount of interest accrued on £3,080,040
at the rate of 5% per annum from 17 November 2016 until the Completion Date, owed by the Company to the Vendors pursuant to the
terms of the UK Camfaud Acquisition Agreement and/or the UK Oxford Acquisition Agreement;

 

“GAAP”
means UK generally accepted accounting principles.

 

“Group”
has the meaning given in the Camfaud Articles.

 

“Group
Debt” has the meaning given in the Camfaud Articles; provided, that, for purposes of this Agreement, Group Debt shall
not include corporation Tax of the Group.

 

    	 	2	 

     

    

 

“Holder
Representative” has the meaning given in the Master Merger Agreement.

 

“Investment
Agreement” means the investment agreement related to the Company and entered into by certain of the Vendors, Concrete
Pumping Holdings, Inc., Lux Concrete Holdings II S.à r.l. and the Company on 17 November 2016;

 

“Laws”
means all applicable legislation, statutes, directives, regulations, judgments, decisions, decrees, orders, instruments, by-laws,
and other legislative measures or decisions having the force of law, treaties, conventions and other agreements between states,
or between states and the European Union or other supranational bodies, rules of common law, customary law and equity and all civil
or other codes and all other laws of, or having effect in, any jurisdiction from time to time;

 

“Master
Merger Agreement” means the Agreement and Plan of Merger, dated as of the date hereof, by and among Concrete Pumping
Holdings Acquisition Corp., a Delaware corporation, Industrea Acquisition Corp., a Delaware corporation, Concrete Pumping Intermediate
Acquisition Corp., a Delaware corporation, Concrete Pumping Merger Sub Inc., a Delaware corporation, Industrea Acquisition Merger
Sub Inc., a Delaware corporation, Parent and PGP Investors, LLC, a Delaware limited liability company;

 

“Master
Merger Completion” has the meaning given to the term “Closing” in the Master Merger Agreement;

 

“Master
Merger Adjustment Escrow Amount” has the meaning given to the term “Adjustment Escrow Amount” in the Master
Merger Agreement.

 

“Master
Merger Indemnity Escrow Amount” has the meaning given to the term “Indemnity Escrow Amount” in the Master
Merger Agreement.

 

“Master
Merger Escrows” means the Master Merger Adjustment Escrow Amount and the Master Merger Indemnity Escrow Amount.

 

“Oxford
B Share Amount” means an amount in U.S. dollars equal to the Parent Exit Consideration.

 

“Parent”
means Concrete Pumping Holdings, Inc., a Delaware corporation.

 

“Parent
Exit Consideration” means the Relevant Percentage of the difference between (i) Enterprise Value minus (ii) Group Debt.

 

“PGP”
means PGP Investors, LLC, as the initial Holder Representative under the Master Merger Agreement.

 

“Purchaser
Group” means the Purchaser and each of its Affiliates including, for the avoidance of doubt, the Company;

 

“Purchaser’s
Solicitors” means Latham & Watkins (London) LLP of 99 Bishopsgate, London EC2M 3XF;

 

“Put/Call
Agreement” means the Agreed Form Put and Call Options attached hereto at Schedule 6, by and among, the Purchaser, Parent,
Lux Concrete Holdings I S.à r.l.., Greystone Pumping Holdings SRL, Brundage-Bone Concrete Pumping, Inc., Concrete Pumping
Intermediate Holdings, LLC (the “Corporate Entities”) and the Vendors.

 

“Relevant
Adjustment Escrow Amount” means, with respect to each Vendor selling Shares hereunder, an amount (converted into U.S.
dollars) equal to £8,695;

 

    	 	3	 

     

    

 

“Relevant
Escrow Amount” means, with respect to each Vendor, an amount in U.S. dollars equal to the sum of such Vendor’s
Relevant Indemnity Escrow Amount (if any) and such Vendor’s Relevant Adjustment Escrow Amount (if any);

 

“Relevant
Existing Loans” means, with respect to each Vendor, the Existing Loans owing to such Vendor, the principal amount of
which is set opposite such Vendor’s name in column 3 of Schedule 1;

 

“Relevant
Indemnity Escrow Amount” means, with respect to each Vendor selling Shares hereunder, an amount (converted into U.S.
dollars) equal to £26,509.

 

“Relevant
Rollover Amount” means, with respect to each Vendor the amount (converted into U.S. dollars) equal to the amount in sterling
set forth opposite such Vendor’s name in column 4 of Schedule 1.

 

“Relevant
Shares” means the Shares (if any) set opposite the relevant Vendor’s name in column 2 of Schedule 1;

 

“Relevant
Percentage” has the meaning given in the Camfaud Articles.

 

“Relevant
Share Percentage” means, with respect to a Vendor, a fraction expressed as a percentage, equal to (i) the number of such
Vendor’s Relevant Shares (if any) divided by (ii) the aggregate of all issued and outstanding Shares.

 

“Remaining
Rollover Amount” means, with respect to a Vendor, an amount in U.S. dollars equal to such Vendor’s Relevant Rollover
Amount minus such Vendor’s Share Consideration.

 

“Representatives”
means, in relation to a party, its Affiliates and their respective directors, officers, employees, agents, consultants and advisers;

 

“Rollover
UK Loan Amount” means the sum of all Vendors’ Remaining Rollover Amounts.

 

“Shares”
means the B ordinary shares of £0.02 each in the Company, all of which have been issued and are fully paid;

 

“Tax”
means:

 

		(a)	all forms of tax, levy, impost, contribution, duty, liability and charge in the nature of taxation
(including payment under the Corporation Tax (Instalment Payments) Regulations 1998) and all related withholdings or deductions
of any nature (including, for the avoidance of doubt, PAYE and National Insurance contribution liabilities in the United Kingdom
and corresponding obligations elsewhere); and

 

		(b)	all related fines, penalties, charges and interest,

 

imposed or
collected by a Tax Authority whether directly or primarily chargeable against, recoverable from or attributable to any of the Purchaser’s
Group or another person (and “Taxes” and “Taxation” shall be construed accordingly);

 

“Tax
Authority” means a taxing or other governmental (local or central), state or municipal authority (whether within or outside
the United Kingdom) competent to impose a liability for or to collect Tax;

 

“Transaction”
means the transactions contemplated by this Agreement and/or the other Transaction Documents or any part thereof;

 

“Transaction
Documents” means this Agreement and any documents in Agreed Form;

 

    	 	4	 

     

    

 

“UK
Camfaud Acquisition Agreement” has the meaning given in the Master Merger Agreement;

 

“UK
Escrow Percentage” has the meaning given in the Master Merger Agreement.

 

“UK
Oxford Acquisition Agreement” has the meaning given in the Master Merger Agreement;

 

“U.S.,”
 “USA” and “United States” each means the United States of America.

 

“Vendor
Escrow Portion” means, with respect to any release from the Master Merger Adjustment Escrow Amount or the Master Merger
Indemnity Escrow Amount, the UK Escrow Percentage of the amount of any such release.

 

“Vendors’
Solicitors Bank Account” means the bank account at The Royal Bank of Scotland plc with account name Geldards Client Account,
account number 22625244 and sort code 15-10-00 (or such other account as the Vendor shall notify to the Purchaser at least five
Business Days before the relevant due date for payment);

 

“Vendors’
Solicitors” means Geldards LLP of The Arc, Enterprise Way, Nottingham, NG2 1EN;

 

“Warranties”
means the warranties of the Vendors given in Clause 7 and Schedule 4; and

 

“Working
Hours” means 9:30 am to 5:30 pm on a Business Day.

 

		1.2	In this Agreement, unless the context otherwise requires:

 

		(a)	every reference to a particular Law shall be construed also as a reference to all other Laws made
under the Law referred to and to all such Laws as amended, re-enacted, consolidated or replaced or as their application or interpretation
is affected by other Laws from time to time and whether before or after Completion provided that, as between the parties, no such
amendment or modification shall apply for the purposes of this Agreement to the extent that it would impose any new or extended
obligation, liability or restriction on, or otherwise adversely affect the rights of, any party;

 

		(b)	references to clauses and schedules are references to Clauses of and Schedules to this Agreement,
references to paragraphs are references to paragraphs of the Schedule in which the reference appears and references to this Agreement
include the Schedules;

 

		(c)	references to the singular shall include the plural and vice versa and references to one gender
include any other gender;

 

		(d)	references to a “party” means a party to this Agreement and includes its successors
in title, personal representatives and permitted assigns;

 

		(e)	references to a “person” includes any individual, partnership, body corporate, corporation
sole or aggregate, state or agency of a state, and any unincorporated association or organisation, in each case whether or not
having separate legal personality;

 

		(f)	references to a “company” includes any company, corporation or other body corporate
wherever and however incorporated or established;

 

		(g)	references to “sterling”, “pounds sterling” or “£” are
references to the lawful currency from time to time of the United Kingdom;

 

    	 	5	 

     

    

 

		(h)	references to times of the day are to London time unless otherwise stated;

 

		(i)	references to writing shall include any modes of reproducing words in a legible and non-transitory
form;

 

		(j)	references to any English legal term for any action, remedy, method of judicial proceeding, legal
document, legal status, court official or any other legal concept or thing shall in respect of any jurisdiction other than England
be deemed to include what most nearly approximates in that jurisdiction to the English legal term;

 

		(k)	words introduced by the word “other” shall not be given a restrictive meaning because
they are preceded by words referring to a particular class of acts, matters or things; and

 

		(l)	general words shall not be given a restrictive meaning because they are followed by words which
are particular examples of the acts, matters or things covered by the general words and the words “includes” and “including”
shall be construed without limitation.

 

		1.3	The headings and sub-headings in this Agreement are inserted for convenience only and shall not
affect the construction of this Agreement.

 

		1.4	Each of the schedules to this Agreement shall form part of this Agreement.

 

		1.5	References to this Agreement include this Agreement as amended or varied in accordance with its
terms.

 

		1.6	All U.S. dollar amounts herein shall be as converted from sterling based on the then current
exchange rate published by the Wall Street Journal on the date of delivery of the Closing Statement hereunder.

 

		2.	SALE OF SHARES and existing loans

 

On the terms set out in this
Agreement each Vendor shall sell and the Purchaser shall purchase the Relevant Shares (if any) and Relevant Existing Loans with
effect from Completion, with full title guarantee, free from all Encumbrances, together with all rights attaching to the Relevant
Shares (if any) and Relevant Existing Loans as at Completion (including all dividends and distributions declared, paid or made
in respect of the Relevant Shares (if any) after the Completion Date).

 

		3.	CONSIDERATION

 

		3.1	The purchase price for the sale by each Vendor of the Relevant Shares held by such Vendor shall
be an amount in U.S. dollars equal to such Vendor’s Relevant Share Percentage of the Oxford B Share Amount as set forth in
the Closing Statement (the “Share Consideration”).

 

		3.2	The purchase price for the sale by each Vendor of the Relevant Existing Loans shall be an amount
equal to the principal outstanding plus accrued and unpaid interest under the Relevant Existing Loans as of the close of business
on the day before the Completion Date (the “Loan Consideration”).

 

		3.3	The Share Consideration and Loan Consideration due to each Vendor shall be satisfied as follows:

 

		(a)	The Share Consideration (if any) and a portion of the
Loan Consideration due to each Vendor shall be satisfied by the issue of Exchange Loan Notes to that Vendor. The principal amount
of each Vendor’s Exchange Loan Note shall be an amount equal to such Vendor’s Share Consideration (if any) plus such
Vendor’s Remaining Rollover Amount.

 

    	 	6	 

     

    

 

		(b)	The remaining portion of the Loan Consideration due to each Vendor not satisfied by the issuance
of Exchange Loan Notes pursuant to Clause 3.3(a) above shall be satisfied by:

 

		(i)	the payment at Completion by the Purchaser of the Relevant Escrow Amount (if any), comprised of
the Relevant Indemnity Escrow Amount and the Relevant Adjustment Escrow Amount, to the Escrow Agent to form a portion of the Master
Merger Indemnity Escrow Amount and Master Merger Adjustment Escrow Amount, respectively, and to be held, disposed of or released
in accordance with terms and conditions of the Master Merger Agreement and the Escrow Agreement; and

 

		(ii)	the payment at Completion by the Purchaser to the Vendors’ Solicitors’ Bank Account
of the amount of cash equal to the then outstanding principal amount and accrued but unpaid interest under the relevant Existing
Loans less the Remaining Rollover Amount and less the Relevant Escrow Amount.

 

		(c)	In the event that the Adjustment Amount (as defined in the Master Merger Agreement) is a positive
number, as finally determined in accordance with the terms of the Master Merger Agreement, the Vendors who are selling Shares hereunder
shall be entitled to their respective portion of such Adjustment Amount as set forth in, and to be delivered to the Vendors in
accordance with, Section 3.4(d) of the Master Merger Agreement (and allocated among the Vendors in accordance with their pro rata
share of the Share Consideration).

 

		3.4	Each Vendor irrevocably authorises and instructs:

 

		(a)	the Purchaser to pay all sums due to them under this Agreement in accordance with Clause 3.3;

 

		(b)	the Purchaser, the Holder Representative, and the parties to the Master Merger Agreement to deal
with their Relevant Escrow Amount, Master Merger Indemnity Escrow Amount and Master Merger Adjustment Escrow Amount as provided
under the terms of the Master Merger Agreement, the Escrow Agreement and Clause 9 below.

 

		3.5	Receipt of the sums to be paid into the Vendors’ Solicitors’ Bank Account in accordance
with this Clause 3 on or before the due date for payment shall be a good discharge by the Purchaser of its obligation to make such
payments. The Purchaser shall not be concerned with, or have any liability whatsoever with respect to, the apportionment of the
cash portion of the Consideration (or any other amount) or for any failure by the Vendors or any other person to apportion such
sum in accordance herewith.

 

		3.6	Any payments made by or on behalf of a party to this Agreement in respect of any liability arising
pursuant to a warranty or covenant under this Agreement shall, to the extent legally possible, be treated as an adjustment to the
Consideration.

 

		4.	[reserved]

 

		5.	COMPLETION

 

		5.1	Completion shall take place on the Completion Date immediately
following the Master Merger Completion under the terms of the Master Merger Agreement at the offices of the Purchaser’s
Solicitors (or at any other place as agreed in writing by the Vendors and the Purchaser).

 

    	 	7	 

     

    

 

		5.2	At least three Business Days prior to the Completion Date, the Purchaser, in consultation with
the Board, shall deliver a written statement (the “Closing Statement”) setting forth Purchaser’s good
faith calculation of (a) the Enterprise Value, (b) the Parent Exit Consideration (c) Group Debt and (d) with respect to each Vendor,
(i) the principal amount and accrued but unpaid interest of such Vendor’s Relevant Existing Loans, (ii) such Vendor’s
Share Consideration, (iii) such Vendor’s Loan Consideration, (iv) the principal amount of such Vendor’s Exchange Loan
Notes, (v) such Vendor’s Remaining Rollover Amount, (vi) such Vendor’s Relevant Escrow Amount and Relevant Indemnity
Amount and (vii) the remaining cash consideration payable pursuant to Clause 3.3(b)(ii). The Purchaser and the Vendors shall use
all reasonable endeavours to consult and attempt to resolve disagreements in good faith in relation to the calculation of Group
Debt to be set forth in the Closing Statement prior to delivery thereof; provided, that when delivered in accordance with
this Clause 5.2, the Closing Statement shall be used for Completion.

 

		5.3	One Business Day prior to Completion:

 

		(a)	the Vendors shall do or procure the carrying out of all those things listed in paragraph 1
of Schedule 3 and such deliverables will be held in escrow by the Vendors’ Solicitors until Completion and the Vendors’
Solicitors shall confirm receipt of all such deliverables to the Purchaser’s Solicitors; and

 

		(b)	the Purchaser shall do or procure the carrying out of all those things listed in paragraph 2.1(a)
and (e) of Schedule 3 and such deliverables will be held in escrow by the Purchaser’s Solicitors until Completion and the
Purchaser’s Solicitors shall confirm receipt of all such deliverables to the Vendors’ Solicitors.

 

		5.4	At Completion:

 

		(a)	the Vendors shall do or procure the carrying out of all those things listed in paragraph 1
of Schedule 3;

 

		(b)	the Purchaser shall do or procure the carrying out of all those things listed in paragraph 2 of
Schedule 3;

 

		(c)	each Vendor shall (subject to payment of Consideration and issuance of Exchange Loan Notes pursuant
to Clause 5.4(b)), enter into and deliver the Put/Call Agreement and execute and deliver the various put option notices attached
thereto to exercise his options granted pursuant to the Put/Call Agreement, which will upon their exercise effect the roll up of
the Exchange Loan Notes such that each Vendor ultimately holds Common Shares in TopCo and shall execute such instruments of transfer
as are required to transfer title to the Exchange Loan Notes pursuant to the exercise of the Vendor’s options under the Put/Call
Agreement; and

 

		(d)	the Purchaser shall (subject to payment of Consideration and issuance of Exchange Loan Notes pursuant
to Clause 5.4(b)), enter into the Put/Call Agreement which will effect the roll up, on their exercise, of the Exchange Loan Notes
such that each Vendor ultimately holds Common Shares in TopCo.

 

		5.5	The parties acknowledge that it is the intention of each
of the parties for the subscriptions described in Clause 5.4(c) to be carried out substantially on the same terms set out in the
Put/Call Agreement. TopCo shall (i) procure that each of the Corporate Entities to the Put/Call Agreement issue the relevant loan
notes and related certificates to the relevant Vendors and enter such Vendors in the register of holders as holders of the relevant
amount of such loan notes and (ii) upon receipt of CPIHAC Loan Notes (as defined in the Put/Call Agreement), shall allot and issue
Common Shares and related certificates to the Vendors, pursuant to the terms of the Put/Call Agreement.

 

    	 	8	 

     

    

 

		5.6	All documents and items delivered and payments made in connection with Completion shall be held
by the recipient to the order of the person delivering them until such time as Completion takes place.

 

		5.7	Without prejudice to any other rights and remedies the Purchaser may have, the Purchaser shall
not be obliged to complete the sale and purchase of any of the Shares or Existing Loans unless the sale and purchase of all of
the Shares and Existing Loans by the Purchaser pursuant to the terms of this Agreement is completed simultaneously.

 

		5.8	Without prejudice to Clause 11.1 and to any other rights and remedies the Purchaser may have, if
the Vendors do not comply with their obligations under Clause 5.4(a) the Purchaser may proceed to Completion as far as practicable
(without limiting its right to claim damages in respect of the breach or any other rights and remedies it may have) or defer Completion
to a date being not more than 20 Business Days following the date on which Completion would otherwise have taken place (so that
the provisions of this Clause 5 shall apply to Completion so deferred) provided that such deferral may only occur once.

 

		6.	Waiver; release.

 

		6.1	Each Vendor acknowledges and agrees that, from and after Completion, such Vendor shall have no
rights with respect to his or her Relevant Shares or Relevant Existing Loans. The transactions contemplated hereby (including the
payment and delivery of the Share Consideration and the Loan Consideration on the terms set forth herein) are intended by the parties
to satisfy in full all obligations owed to the Vendors under the Camfaud Articles (including 30.3 thereof) and the Relevant Existing
Loans arising in connection with the Master Merger Agreement. To the extent the purchase and sale of the Relevant Shares or Relevant
Existing Loans or the other transactions contemplated hereby are inconsistent with, are prohibited by or constitute a variance
from the terms of the Camfaud Articles, Relevant Existing Loans or any related documentation, the Vendors hereby waive any rights
or claims relating to such inconsistency, prohibition or variance. In furtherance of the foregoing, and subject to the Completion
and effective as of the Completion, each Vendor, on behalf of such Vendor and such Vendor’s successors, assigns, next-of-kin,
representatives, administrators, executors, agents and any other person or entity claiming by, through, or under any of the foregoing,
unconditionally and irrevocably releases, waives and forever discharges each of the Company, Purchaser or any of their respective
Affiliates (including PGP) to the fullest extent permitted by law, any from any and all claims, demands, damages, judgments, causes
of action and liabilities of any nature whatsoever, whether or not known, suspected or claimed, arising directly or indirectly
from any act, omission, event or transaction occurring (or any circumstances existing) on or prior to the Completion Date, but
excluding Retained Claims (collectively, “Claims”), it may have with respect to its Relevant Shares and Relevant
Existing Loans, including, without limitation, any Claims that the purchase and sale of the Relevant Shares hereunder was not completed
in accordance with the Camfaud Articles or that the purchase and sale of the Relevant Existing Loans was not completed in accordance
with the terms of the Relevant Existing Loans. Notwithstanding the foregoing, nothing in this Clause 6 shall relieve any person
from any claim arising from or in connection with this Agreement, the Put/Call Agreement, any other agreement entered into by each
Vendor in connection with his or her entry into this Agreement or the Vendors rights (if any) under the UK Camfaud Acquisition
Agreement or the UK Oxford Acquisition Agreement to any Contingent Deferred Consideration (as such term is defined in the UK Camfaud
Acquisition Agreement and UK Oxford Acquisition Agreement) (collectively, “Retained Claims”).

 

    	 	9	 

     

    

 

		7.	WARRANTIES of the Vendors

 

		7.1	Each Vendor warrants to the Purchaser as at the date of this Agreement in the terms set out in
Schedule 4.

 

		7.2	Each Vendor undertakes to the Purchaser that as at the date of this Agreement and as at Completion:

 

		(a)	the Shares constitute all of the shares in the Company held by the Vendors; and

 

		(b)	the Existing Loans constitute all of the outstanding indebtedness to the applicable Vendor by the
Company (other than any unpaid salary or other sums due to the Vendors from the Company in connection with the Vendor’s employment).

 

		7.3	The Warranties are deemed to be repeated immediately before Completion by reference to the facts
and circumstances then existing and any reference made to the date of this Agreement (whether express or implied) in relation to
any Warranty shall be construed, in relation to such repetition, as a reference to the Completion Date.

 

		7.4	Each Vendor acknowledges that the Purchaser is entering into this Agreement on the basis of and
in express reliance on the Warranties.

 

		8.	WARRANTIES OF THE PURCHASER AND TOPCO

 

		8.1	The Purchaser warrants to the Vendors as at the date of this Agreement in the terms set out in
paragraphs 1.1 to 1.4 of Schedule 5. The warranties so given by the Purchaser are deemed to be repeated immediately before Completion
by reference to the facts and circumstances then existing and any reference made to the date of this Agreement (whether express
or implied) in relation to any Warranty shall be construed, in relation to such repetition, as a reference to the Completion Date.

 

		8.2	TopCo warrants to the Vendors as at the date of this Agreement in the terms set out in paragraphs
1.5 to 1.8 Schedule 5. The warranties so given by TopCo are deemed to be repeated immediately before Completion by reference to
the facts and circumstances then existing and any reference made to the date of this Agreement (whether express or implied) in
relation to any Warranty shall be construed, in relation to such repetition, as a reference to the Completion Date.

 

		9.	Escrow; holder representative

 

		9.1	The Vendors selling Shares hereunder acknowledge that the Relevant Indemnity Escrow Amount and
the Relevant Adjustment Escrow Amount will form a portion of the Master Merger Indemnity Escrow Amount and Master Merger Adjustment
Escrow Amount, respectively, that may be used as a source of funds to satisfy certain indemnification and purchase price adjustment
obligations, respectively, pursuant to the Master Merger Agreement as more fully set forth therein. Each such Vendor acknowledges
and agrees that he shall be entitled to receive his Relevant Share Percentage of the Vendor Escrow Portion of any releases from
the Master Merger Escrows, or payment of its pro rata share of any positive Adjustment Amount, subject to and in accordance with,
and only at the times and in the amounts set forth in, the Master Merger Agreement and the Escrow Agreement.

 

    	 	10	 

     

    

 

		9.2	The Vendors acknowledge PGP is the initial Holder Representative under the Master Merger Agreement,
and that the Holder Representative is entitled to take certain actions with respect to the release and disposition of the Master
Merger Escrows and to take certain other actions with respect to the purchase price adjustment and indemnification pursuant to
the Master Merger Agreement as more fully set forth therein. Each Vendor has read and understands the terms and conditions of the
Master Merger Agreement and hereby ratifies the appointment of PGP Investors, LLC as the Holder Representative on his or her, or
its behalf pursuant to, and in accordance with, the Master Merger Agreement. Article XI of the Master Merger Agreement is hereby
incorporated by reference to apply to the Vendors mutatis mutandis with respect to all matters under the Master Merger Agreement
relating to indemnification, purchase price adjustment or that may otherwise affect or impact the release or disposition of the
Master Merger Escrows.

 

		10.	CONFIDENTIALITY AND ANNOUNCEMENTS

 

		10.1	Subject to Clause 10.4, each party:

 

		(a)	shall treat as strictly confidential:

 

		(i)	the provisions of this Agreement and the other Transaction Documents and the process of their negotiation;

 

		(ii)	in the case of the Vendors, any information received or held by the Vendors or any of its Representatives
which relates to the Purchaser Group or, following Completion, the Company,

 

(together “Confidential
Information”); and

 

		(b)	shall not, except with the prior written consent of the other party (which shall not be unreasonably
withheld or delayed), make use of (save for the purposes of performing its obligations under this Agreement) or disclose to any
person (other than its Representatives and providers of finance for the purposes of the Transaction in accordance with Clause 10.2)
any Confidential Information.

 

		10.2	Each party undertakes that it shall only disclose Confidential Information to Representatives and
providers of finance for the purposes of the Transaction where it is reasonably required for the purposes of performing its obligations
under this Agreement, the Master Merger Agreement or the other Transaction Documents and only where such recipients are informed
of the confidential nature of the Confidential Information and the provisions of this Clause 10 and instructed to comply with this
Clause 10 as if they were a party to it.

 

		10.3	The Vendors shall not make any announcement (including any communication to the public, to any
customers suppliers or employees of the Company) concerning the subject matter of this Agreement without the prior written consent
of the Purchaser (which shall not be unreasonably withheld or delayed).

 

		10.4	Nothing in this Clause 10 shall prevent or restrict the Purchaser or any of its Affiliates, or
any of their respective directors, officers, employees, agents, consultants and advisers from passing any information to:

 

		(a)	any purchaser or potential purchaser of the Company or the Purchaser Group and any parent undertaking
of the Purchaser;

 

		(b)	any provider of finance to the Purchaser Group, including (provided they have a duty to keep such
information confidential) their advisors;

 

		(c)	any general partner, limited partner, trustee, nominee or manager of, or adviser to, the Purchaser
or of or to any of its Affiliates, or any investor or potential investor in any of them, or any provider of finance to any such
general partner, limited partner, investor or potential investor or any of their advisers;

 

    	 	11	 

     

    

 

		(d)	any co-investment scheme of the Purchaser or any of its Affiliates or any person holding shares
under such scheme or entitled to the benefit of shares under such scheme; or

 

		(e)	any company or fund (including any unit trust, investment trust, limited partnership or general
partnership) which is advised by, or the assets of which are managed by (whether solely or jointly with others), the Purchaser
or its Affiliates or in respect of which such person is a general partner, or which is advised or managed by such person’s
general partner, trustee, nominee, manager or adviser, or any potential investors in any such company or fund or any potential
such company or fund.

 

		10.5	Clause 10.1 and 10.3 shall not apply if and to the extent that the party using or disclosing Confidential
Information or making such announcement can demonstrate that:

 

		(a)	such disclosure or announcement is required by Law or by any stock exchange or any supervisory,
regulatory, governmental or anti-trust body (including, for the avoidance of doubt, any Tax Authority) having applicable jurisdiction;

 

		(b)	such disclosure or announcement is required in order to facilitate any assignment or proposed assignment
of the whole or any part of the rights or benefits under this Agreement which is permitted by Clause 17; or

 

		(c)	the Confidential Information concerned has come into the public domain other than through its fault
(or that of its Representatives) or the fault of any person to whom such Confidential Information has been disclosed in accordance
with this Clause 10.5.

 

		10.6	The provisions of this Clause 10 shall survive termination of this Agreement or Completion, as
the case may be, and shall continue indefinitely regardless of whether this Agreement is terminated.

 

		11.	TERMINATION

 

		11.1	Where:

 

		(a)	the Master Merger Agreement has been validly terminated prior to the Master Merger Completion;

 

		(b)	the Vendors are in breach of any of the Warranties as given at the date of this Agreement;

 

		(c)	the Vendors are in breach of any of their obligations under Clause 5.4(a) or Schedule 2; or

 

		(d)	there would be, if Completion were to occur, a breach
of one or more of the Warranties as repeated immediately before Completion under Clause 7.2,

 

the Purchaser
may at any time at or prior to Completion (in addition to and without prejudice to any other rights and remedies it may have) serve
written notice on the Vendor terminating this Agreement without liability on its part, in which case this Agreement shall cease
to have effect immediately except for the provisions of Clauses 1, 9, 11, 13 and 15 to 22.1 and any rights or liabilities that
have accrued prior to termination under this Agreement.

 

		12.	FURTHER ASSURANCE

 

The Vendors shall, at their
own cost, promptly execute and deliver all such documents and do all such things and provide all such information and assistance,
as the Purchaser may from time to time reasonably require for the purpose of giving full effect to the provisions of this Agreement
and to secure for the Purchaser the full benefit of the rights, powers and remedies conferred upon it under this Agreement.

 

    	 	12	 

     

    

 

		13.	ENTIRE AGREEMENT AND REMEDIES

 

		13.1	This Agreement and the other Transaction Documents together set out the entire agreement between
the parties relating to the sale and purchase of the Shares and, save to the extent expressly set out in this Agreement or any
other Transaction Document, supersede and extinguish any prior drafts, agreements, undertakings, representations, warranties, promises,
assurances and arrangements of any nature whatsoever, whether or not in writing, relating thereto. This Clause shall not exclude
any liability for or remedy in respect of fraudulent misrepresentation.

 

		13.2	If there is any conflict between the terms of this Agreement and any other agreement, this Agreement
shall prevail (as between the parties to this Agreement and as between the Vendors, their Affiliates and any members of the Purchaser
Group) unless:

 

		(a)	such other agreement expressly states that it overrides this Agreement in the relevant respect;
and

 

		(b)	the Vendors and the Purchaser are either also parties to that other agreement or otherwise expressly
agree in writing that such other agreement shall override this Agreement in that respect.

 

		13.3	The rights, powers, privileges and remedies provided in this Agreement are cumulative and not exclusive
of any rights, powers, privileges or remedies provided by Law.

 

		14.	POST-COMPLETION EFFECT OF AGREEMENT

 

Notwithstanding Completion:

 

		(a)	each provision of this Agreement and any other Transaction Document not performed at or before
Completion but which remains capable of performance;

 

		(b)	the Warranties; and

 

		(c)	all covenants, indemnities and other undertakings and assurances contained in or entered into pursuant
to this Agreement or any other Transaction Document

 

will remain in full force and
effect and, except as otherwise expressly provided, without limit in time.

 

		15.	WAIVER AND VARIATION

 

		15.1	A failure or delay by a party to exercise any right or remedy provided under this Agreement or
by Law, whether by conduct or otherwise, shall not constitute a waiver of that or any other right or remedy, nor shall it preclude
or restrict any further exercise of that or any other right or remedy. No single or partial exercise of any right or remedy provided
under this Agreement or by Law, whether by conduct or otherwise, shall preclude or restrict the further exercise of that or any
other right or remedy.

 

		15.2	A waiver of any right or remedy under this Agreement shall only be effective if given in writing
and shall not be deemed a waiver of any subsequent breach or default.

 

		15.3	No variation or amendment of this Agreement shall be valid unless it is in writing and duly executed
by or on behalf of all of the parties to this Agreement. Unless expressly agreed, no variation or amendment shall constitute a
general waiver of any provision of this Agreement, nor shall it affect any rights or obligations under or pursuant to this Agreement
which have already accrued up to the date of variation or amendment and the rights and obligations under or pursuant to this Agreement
shall remain in full force and effect except and only to the extent that they are varied or amended.

 

    	 	13	 

     

    

 

		16.	INVALIDITY

 

Where any provision of this
Agreement is or becomes illegal, invalid or unenforceable in any respect under the Laws of any jurisdiction then such provision
shall be deemed to be severed from this Agreement and, if possible, replaced with a lawful provision which, as closely as possible,
gives effect to the intention of the parties under this Agreement and, where permissible, that shall not affect or impair the legality,
validity or enforceability in that, or any other, jurisdiction of any other provision of this Agreement.

 

		17.	ASSIGNMENT

 

		17.1	Except as provided in this Clause 17 or as the parties specifically agree in writing, no person
shall assign, transfer, charge or otherwise deal with all or any of its rights under this Agreement nor grant, declare, create
or dispose of any right or interest in it.

 

		17.2	Subject to Clause 17.3, the Purchaser may assign the benefit of this Agreement and/or of any other
Transaction Document to which it is a party, in whole or in part, to, and it may be enforced by:

 

		(a)	any member of the Purchaser Group;

 

		(b)	any third party which is the legal and/or beneficial owner from time to time of any or all of the
Shares or the assets of any of the Group Companies as if such person was the Purchaser under this Agreement; or

 

		(c)	any bank or financial institution lending money or making other banking facilities available to
the Purchaser, by way of security, or any refinancing thereof.

 

Any such person
to whom an assignment is made under this Clause 17.2 may itself make an assignment as if it were the Purchaser under this Clause
17.2.

 

		17.3	Any assignment made pursuant to this Clause 17 shall be on the basis that:

 

		(a)	the Vendor may discharge its obligations under this Agreement to the assignor until it receives
notice of the assignment;

 

		(b)	the liability of the Vendor to any assignee shall not be greater than its liability to the Purchaser;
and

 

		(c)	the Purchaser will remain liable for any obligations under this Agreement.

 

		18.	NOTICES

 

		18.1	Any notice or other communication given under this Agreement or in connection with the matters
contemplated herein shall, except where otherwise specifically provided, be in writing in the English language, addressed as provided
in Clause 18.2 and served:

 

		(a)	by courier, in which case it shall be deemed to have been given two Business Days after its delivery
to a representative of the courier; or

 

		(b)	by e-mail, in which case it shall be deemed to have been given when despatched unless an automated
response or bounce back is received; provided that any notice despatched outside Working Hours shall be deemed given at
the start of the next period of Working Hours.

 

    	 	14	 

     

    

 

		18.2	Notices under this Agreement shall be sent for the attention of the person and to the address,
or e-mail address, subject to Clause 18.3, as set out below:

 

	 	For the Vendors:	 
	 	 	 
	 	Name:	Brendan Murphy
	 	 	 
	 	Address:	High Road, Thornwood Common, Epping, Essex, United Kingdom, CM16 6LU
	 	 	 
	 	E-mail address:	brendan.murphy@camfaud.co.uk
	 	 	 
	 	with a copy to:	 
	 	 	 
	 	Name:	Geldards LLP
	 	 	 
	 	For the attention of:	Paul Feenan
	 	 	 
	 	Address:	The Arc, Enterprise Way, Nottingham, NG2 1EN
	 	 	 
	 	E-mail address:	paul.feenan@geldards.com
	 	 	 
	 	For the Purchaser:	 
	 	 	 
	 	Name:	Lux Concrete Holdings II S.à r.l. c/o Concrete Pumping Holdings, Inc.
	 	 	 
	 	For the attention of:	Mary Ellen Kanoff, General Counsel
	 	 	 
	 	Address:	10250 Constellation Blvd #2230, Los Angeles, CA 90067
	 	 	 
	 	E-mail address:	mkanoff@peninsulapacific.com
	 	 	 
	 	with a copy to:	 
	 	 	 
	 	Name:	Latham & Watkins LLP
	 	 	 
	 	For the attention of:	Jason Silvera, Sean Denvir
	 	 	 
	 	Address:	
        10250 Constellation Blvd #1100, Los Angeles,
        CA 90067

         

	 	E-mail address:	jason.silvera@lw.com; sean.denvir@lw.com
	 	 	 
	 	
        For TopCo:

        
	 
	 	 	 
	 	Name:	Concrete Pumping Holdings Acquisition Corp. c/o Industrea Acquisition Corp.
	 	 	 
	 	For the attention of:	Tariq Osman
	 	 	 
	 	Address:	28 W. 44th Street, Suite 501, New York, New York 10036
	 	 	 
	 	E-mail address:	tosman@argandequity.com
	 	 	 
	 	with a copy to:	 
	 	 	 
	 	Name:	Winston & Strawn LLP
	 	 	 
	 	For the attention of:	Dominick P. DeChiara, Bryan C. Goldstein
	 	 	 
	 	Address:	200 Park Avenue, New York, New York 10166
	 	 	 
	 	E-mail address:	ddechiara@winston.com, bgoldstein@winston.com

 

		18.3	Any party to this Agreement may notify the other party of any change to its address or other details
specified in Clause 18.1 provided that such notification shall only be effective on the date specified in such notice or five Business
Days after the notice is given, whichever is later.

 

		19.	COSTS

 

Each
party shall bear its own costs arising out of or in connection with the preparation, negotiation and implementation of this Agreement
and all other Transaction Documents. Stamp Duty payable as a result of the sale of the Relevant Shares shall be borne by the Purchaser.

 

		20.	RIGHTS OF THIRD PARTIES

 

		20.1	The specified third party beneficiaries of the undertakings referred to in Clauses 3.4, 6.1 and
16, shall, in each case, have the right to enforce the relevant terms by reason of the Contracts (Rights of Third Parties) Act
1999.

 

		20.2	Except as provided in Clause 20.1, a person who is not a party to this Agreement shall have no
right under the Contracts (Rights of Third Parties) Act 1999 to enforce any of its terms.

 

		21.	COUNTERPARTS

 

This Agreement may be executed
in any number of counterparts. Each counterpart shall constitute an original of this Agreement but all the counterparts together
shall constitute but one and the same instrument.

 

		22.	GOVERNING LAW AND JURISDICTION

 

		22.1	This Agreement and any non-contractual rights or obligations arising out of or in connection with
it shall be governed by and construed in accordance with the laws of England and Wales.

 

		22.2	The parties irrevocably agree that the courts of England and Wales shall have exclusive jurisdiction
to settle any Disputes, and waive any objection to proceedings before such courts on the grounds of venue or on the grounds that
such proceedings have been brought in an inappropriate forum.

 

		22.3	For the purposes of this Clause, “Dispute” means any dispute, controversy, claim
or difference of whatever nature arising out of, relating to, or having any connection with this Agreement, including a dispute
regarding the existence, formation, validity, interpretation, performance or termination of this Agreement or the consequences
of its nullity and also including any dispute relating to any non-contractual rights or obligations arising out of, relating to,
or having any connection with this Agreement.

 

    	 	15	 

     

    

 

Schedule
1

 

The
vendors

 

	Vendor
    name	 	B
    Ordinary 
 Shares 
 (number)	 	 	Existing
    Loans 
 (principal amount)	 	 	Relevant
    Rollover 
 Amount	 
	David Faud	 	 	              	 	 	£	                                 	 	 	£	                     	 
	Peter Faud	 	 	  	 		£	 	 		£ 	 
	Brendan Murphy	 	 	  	 		£ 	 	 		£ 	 
	Damian Shepherd	 	 	  	 		£ 	 	 		£ 	 
	Evelyn Murphy	 	 	  	 		£	 	 		£	 
	TOTAL	 	 	 	 	 	£	 	 	 	£	 	 

 

    	 	1	 

     

    

 

Schedule
2

 

PARTICULARS
OF THE COMPANY

 

 

	Company Name	Camfaud Group Limited 
	 	 
	Registered Number	10473517
	 	 
	Registered Office	High Road, Thornwood Common, Epping, Essex, United Kingdom, CM16 6LU
	 	 
	Date and Place of Incorporation	10 November 2016, England
	 	 
	Directors 	Robert Ray Buck
	 	 
	 	Scott Anthony Farquhar 
	 	 
	 	David Anthony Faud
	 	 
	 	David Robert Holmes
	 	 
	 	Matthew Marc Homme
	 	 
	 	John Gregory Hudek
	 	 
	 	
        Mary Ellen Kanoff

        

        

	 	 
	 	Martin Brent Stevens
	 	 

	 	Bruce Franklin Young
	 	 
	Issued Share Capital	
        887,999 A Ordinary Shares of £0.01

        

	 	 
	 	12,000 B Ordinary Shares of £0.02
	 	 
	Accounting Reference Date	31 October
	 	 
	Auditors	RSM UK Audit LLP
	 	 
	Tax Residence	UK

 

    	 	1	 

     

    

 

Schedule
3

 

COMPLETION
OBLIGATIONS

 

		1.	VENDORS’ OBLIGATIONS

 

		1.1	At Completion the Vendors shall:

 

		(a)	deliver to the Purchaser or procure the delivery to the Purchaser of:

 

		(i)	all documents, duly executed and/or endorsed where required, required to enable title to all of
the Shares to pass into the name of the Purchaser (or its nominees);

 

		(ii)	share certificates, or equivalent documents in the relevant jurisdiction, in respect of all of
the Shares, or an indemnity in Agreed Form for any lost share certificates;

 

		(iii)	such waivers or consents as the Purchaser may require to enable the Purchaser (or its nominees)
to be registered as holders of the Shares;

 

		(iv)	irrevocable powers of attorney in Agreed Form given by the Vendors in favour of the Purchaser (or
its nominees) in respect of rights attaching to the Shares;

 

		(v)	the original of any power of attorney in Agreed Form under which any document to be delivered to
the Purchaser under this paragraph 1 has been executed; and

 

		(vi)	a counterpart of the Deed of Termination duly executed by the Vendors.

 

		2.	PURCHASER’S OBLIGATIONS

 

		2.1	At Completion the Purchaser shall subject to due performance by the Vendors of their obligations
under Clause 5.3(a) and paragraph 1 of this Schedule 3:

 

		(a)	a counterpart of the Deed of Termination duly executed by the Purchaser and the Company;

 

		(b)	pay or cause to be paid into the Vendors’ Solicitors’ Bank Account the amount required
in accordance with Clause 3.3(b)(ii) in respect of each Vendor;

 

		(c)	pay or cause to be paid into the Escrow Agent the amount required in accordance with Clause 3.3(a)(i)
in respect of each Vendor;

 

		(d)	issue to each Vendor such principal amount of Exchange Loan Notes as required in accordance with
Clause 3.3(a) and provide executed certificates in respect of such Exchange Loan Notes; and

 

		(e)	deliver to the Vendors a copy of a board resolution of
the Purchaser approving the Transaction and the execution by the Purchaser of the Transaction Documents and any other documents
referred to in this Agreement.

 

    	 	1	 

     

    

 

Schedule
4

 

vendor
WARRANTIES

 

		1.1	The Vendor has taken all necessary action and has all requisite power and authority to enter into
and perform this Agreement and the other Transaction Documents in accordance with their terms.

 

		1.2	This Agreement and the other Transaction Documents constitute (or shall constitute when executed)
valid, legal and binding obligations on the Vendor in the terms of the Agreement and such other Transaction Documents.

 

		1.3	The execution and delivery of this Agreement and the other Transaction Documents by the Vendor
and the performance of and compliance with its terms and provisions will not conflict with or result in a breach of, or constitute
a default under, any agreement or instrument to which the Vendor is a party or by which it is bound, or any Law, order or judgment
that applies to or binds any such person or any of its property.

 

		1.4	No consent, action, approval or authorisation of, and no registration, declaration, notification
or filing with or to, any Authority is required to be obtained, or made, by the Vendor to authorise the execution or performance
of this Agreement by such persons.

 

		1.5	The Vendor is the sole legal and beneficial owner of the Shares set opposite his name in column
2 of Schedule 1 and is entitled to transfer the legal and beneficial title to such Shares on the terms set out in this Agreement.
Such Shares are fully paid up and free from Encumbrances and there is no agreement or commitment to give such Encumbrances.

 

		1.6	The Vendor is the sole legal and beneficial owner of the Existing Loans set opposite his name in
column 3 of Schedule 1 and is entitled to transfer the legal and beneficial title to such Existing Loans on the terms set out in
this Agreement. Such Existing Loans are free from Encumbrances and there is no agreement or commitment to give such Encumbrances.

 

		1.7	The Vendor warrants that he has never been the subject
of a bankruptcy order, had a bankruptcy petition filed against him or entered into an individual voluntary arrangement with his
creditors.

 

 

    	 	1	 

     

    

 

Schedule
5

 

purchaser
and topco WARRANTIES

 

		1.1	The Purchaser is validly incorporated, in existence and duly registered under the laws of its country
of incorporation.

 

		1.2	The Purchaser has taken all necessary action and has all requisite power and authority to enter
into and perform this Agreement and the other Transaction Documents in accordance with their terms.

 

		1.3	This Agreement and the other Transaction Documents constitute (or shall constitute when executed)
valid, legal and binding obligations on the Purchaser in accordance with their terms.

 

		1.4	The execution and delivery of this Agreement and the other Transaction Documents by the Purchaser
and the performance of and compliance with their terms and provisions will not conflict with or result in a breach of, or constitute
a default under, the constitutional documents of the Purchaser, any agreement or instrument to which the Purchaser is a party or
by which it is bound, or any Law or order that applies to or binds the Purchaser or any of its property.

 

		1.5	Topco is validly incorporated, in existence and duly registered under the laws of its country of
incorporation.

 

		1.6	Topco has taken all necessary action and has all requisite power and authority to enter into and
perform this Agreement and the other Transaction Documents to which it is a party in accordance with their terms.

 

		1.7	This Agreement and the other Transaction Documents to which Topco is a party constitute (or shall
constitute when executed) valid, legal and binding obligations on Topco in accordance with their terms.

 

		1.8	The execution and delivery of this Agreement and the other Transaction Documents to which Topco
is a party by Topco and the performance of and compliance with their terms and provisions will not conflict with or result in a
breach of, or constitute a default under, the constitutional documents of Topco, any agreement or instrument to which Topco is
a party or by which it is bound, or any Law or order that applies to or binds Topco or any of its property.

 

    	 	1	 

     

    

 

Schedule
6

 

Put/Call
Agreement

  

__________ 20

 

THE MANAGERS

 

CONCRETE PUMPING HOLDINGS ACQUISITION CORPORATION

 

CONCRETE PUMPING INTERMEDIATE ACQUISITION
CORP.

 

CONCRETE PUMPING HOLDINGS, INC.

 

CONCRETE PUMPING INTERMEDIATE HOLDINGS, LLC

 

BRUNDAGE-BONE CONCRETE PUMPING, INC.

 

GREYSTONE PUMPING HOLDINGS SRL

 

LUX CONCRETE HOLDINGS I S.À R.L.

 

and

 

LUX CONCRETE HOLDINGS II S.À R.L.

 

 

 

PUT AND CALL OPTIONS

 

 

 

99 Bishopsgate

London EC2M 3XF

United Kingdom

Tel: +44.20.7710.1000

www.lw.com

 

     

     

    

 

CONTENTS

 

	Clause	 	Page
	 	 	 
	1.	DEFINITIONS AND INTERPRETATION	2
	 	 	 
	2.	GRANT OF THE LUX I OPTIONS	7
	 	 	 
	3.	LUX I OPTION PERIOD	7
	 	 	 
	4.	EXERCISE OF LUX I PUT OPTION	8
	 	 	 
	5.	EXERCISE OF LUX I CALL OPTION	8
	 	 	 
	6.	LUX I CONSIDERATION	8
	 	 	 
	7.	Lux I COMPLETION	8
	 	 	 
	8.	GRANT OF THE GPHS OPTIONS	9
	 	 	 
	9.	GPHS OPTION PERIOD	9
	 	 	 
	10.	EXERCISE OF GPHS PUT OPTION	9
	 	 	 
	11.	EXERCISE OF GPHS CALL OPTION	10
	 	 	 
	12.	GPHS CONSIDERATION	10
	 	 	 
	13.	GPHS COMPLETION	10
	 	 	 
	14.	GRANT OF THE BCPI OPTIONS	11
	 	 	 
	15.	BCPI OPTION PERIOD	11
	 	 	 
	16.	EXERCISE OF BCPI PUT OPTION	11
	 	 	 
	17.	EXERCISE OF BCPI CALL OPTION	11
	 	 	 
	18.	BCPI CONSIDERATION	12
	 	 	 
	19.	BCPI COMPLETION	12
	 	 	 
	20.	GRANT OF THE CPLLC OPTIONS	12
	 	 	 
	21.	CPLLC OPTION PERIOD	13
	 	 	 
	22.	EXERCISE OF CPLLC PUT OPTION	13
	 	 	 
	23.	EXERCISE OF CPLLC CALL OPTION	13
	 	 	 
	24.	CPLLC CONSIDERATION	14
	 	 	 
	25.	CPLLC COMPLETION	14
	 	 	 
	26.	GRANT OF THE CPHI OPTIONS	14
	 	 	 
	27.	CPHI OPTION PERIOD	15
	 	 	 
	28.	EXERCISE OF CPHI PUT OPTION	15
	 	 	 
	29.	EXERCISE OF CPHI CALL OPTION	15
	 	 	 
	30.	CPHI CONSIDERATION	15
	 	 	 
	31.	CPHI COMPLETION	15
	 	 	 
	32.	GRANT OF THE CPIHAC OPTIONS	16
	 	 	 
	33.	CPIHAC OPTION PERIOD	16
	 	 	 
	34.	EXERCISE OF CPIHAC PUT OPTION	17
	 	 	 
	35.	EXERCISE OF CPIHAC CALL OPTION	17

 

    i

     

    

 

	36.	CPIHAC CONSIDERATION	17
	 	 	 
	37.	CPIHAC COMPLETION	17
	 	 	 
	38.	GRANT OF THE CPHAC OPTIONS	18
	 	 	 
	39.	CPHAC OPTION PERIOD	18
	 	 	 
	40.	EXERCISE OF CPHAC PUT OPTION	19
	 	 	 
	41.	EXERCISE OF CPHAC CALL OPTION	19
	 	 	 
	42.	CPHAC CONSIDERATION	19
	 	 	 
	43.	CPHAC COMPLETION	19
	 	 	 
	44.	TERMINATION	20
	 	 	 
	45.	Tax	20
	 	 	 
	46.	WARRANTIES	20
	 	 	 
	47.	COMPANY PROTECTION	22
	 	 	 
	48.	FURTHER ASSURANCE	22
	 	 	 
	49.	ENTIRE AGREEMENT AND REMEDIES	22
	 	 	 
	50.	NOTICE	22
	 	 	 
	51.	GENERAL	23
	 	 	 
	52.	COUNTERPARTS	23
	 	 	 
	53.	GOVERNING LAW AND JURISDICTION	23
	 	 	 
	Schedule 1 MANAGERS	24
	 	 
	Schedule 2 Lux I EXERCISE NOTICE	25
	 	 
	Schedule 3 GPHS EXERCISE NOTICE	26
	 	 
	Schedule 4 BCPI EXERCISE NOTICE	27
	 	 
	Schedule 5 CPLLC EXERCISE NOTICE	28
	 	 
	Schedule 6 CPHI EXERCISE NOTICE	29
	 	 
	Schedule 7 CPIHAC EXERCISE NOTICE	30
	 	 
	Schedule 8 CPHAC EXERCISE NOTICE	31
	 	 
	Schedule 9 stockholders agreement	32
	 	 
	Schedule 10 manager warranties	33
	 	 
	Schedule 11 CPHAC warranties	35

 

    ii

     

    

 

THIS DEED is made on __________20

 

BETWEEN

 

		(1)	THE MANAGERS, being those persons whose names and addresses are set out in Schedule 1 (the
 “Managers”);

 

		(2)	CONCRETE PUMPING HOLDINGS ACQUISITION CORPORATION., a [ · ]
incorporated in [ · ] with registered number [ · ]
and having its registered office at [ · ] (“CPHAC”);

 

		(3)	CONCRETE PUMPING INTERMEDIATE ACQUISITION CORP., a [ · ]
incorporated in [ · ] with registered number [ · ]
and having its registered office at [ · ] (“CPIHAC”);

 

		(4)	CONCRETE PUMPING HOLDINGS, INC., a [ · ]
incorporated in [ · ] with registered number [ · ]
and having its registered office at [ · ] (“CPHI”);

 

		(5)	CONCRETE PUMPING INTERMEDIATE HOLDINGS, LLC, a [ · ]
incorporated in [ · ] with registered number [ · ]
and having its registered office at [ · ] (“CPLLC”);

 

		(6)	BRUNDAGE-BONE CONCRETE PUMPING, INC., a [ · ]
incorporated in [ · ] with registered number [ · ]
and having its registered office at [ · ] (“BCPI”);

 

		(7)	GREYSTONE PUMPING HOLDINGS SRL, a [ · ]
incorporated in [ · ] with registered number [ · ]
and having its registered office at [ · ] (“GPHS”);

 

		(8)	LUX CONCRETE HOLDINGS I S.À R.L., a [ · ]
incorporated in [ · ] with registered number [ · ]
and having its registered office at [ · ] (“Lux I”);
and

 

		(9)	LUX CONCRETE HOLDINGS II S.À R.L., a [ · ]
incorporated in [ · ] with registered number [ · ]
and having its registered office at [ · ] (“Lux II”).

 

WHEREAS

 

		(A)	The Managers shall be issued Lux II Loan Notes pursuant to Clause [ · ]
of the SPA.

 

		(B)	Lux I has agreed to grant a put option in favour of each of the Managers in respect of his Lux
II Loan Notes, and each of the Managers has agreed to grant a call option in respect of his Lux II Loan Notes in favour of Lux
I, on the terms of this Deed.

 

		(C)	GPHS has agreed to grant a put option in favour of each of the Managers in respect of his Lux I
Loan Notes, and each of the Managers has agreed to grant a call option in respect of his Lux I Loan Notes in favour of GPHS, on
the terms of this Deed.

 

		(D)	BCPI has agreed to grant a put option in favour of each of the Managers in respect of his GPHS
Loan Notes, and each of the Managers has agreed to grant a call option in respect of his GPHS Loan Notes in favour of BCPI, on
the terms of this Deed.

 

		(E)	CPLLC has agreed to grant a put option in favour of each of the Managers in respect of his BCPI
Loan Notes, and each of the Managers has agreed to grant a call option in respect of his BCPI Loan Notes in favour of CPLLC, on
the terms of this Deed.

 

		(F)	CPHI has agreed to grant a put option in favour of each of the Managers in respect of his CPLLC
Loan Notes, and each of the Managers has agreed to grant a call option in respect of his CPLLC Loan Notes in favour of CPHI, on
the terms of this Deed.

 

    	 	1	 

     

    

 

		(G)	CPIHAC has agreed to grant a put option in favour of each of the Managers in respect of his CPHI
Loan Notes, and each of the Managers has agreed to grant a call option in respect of his CPHI Loan Notes in favour of CPIHAC, on
the terms of this Deed.

 

		(H)	CPHAC has agreed to grant a put option in favour of each of the Managers in respect of his CPIHAC
Loan Notes, and each of the Managers has agreed to grant a call option in respect of his CPIHAC Loan Notes in favour of CPHAC,
on the terms of this Deed.

 

IT IS AGREED THAT

 

		1.	DEFINITIONS AND INTERPRETATION

 

		1.1	In this Deed, unless the context otherwise requires:

 

“Affiliate”
means:

 

		(a)	in the case of a person that is a body corporate, any subsidiary undertaking or parent undertaking
of that person and any subsidiary undertaking of any such parent undertaking or any entity which manages and/or advises any such
entity, in each case from time to time;

 

		(b)	in the case of a person that is an individual, any spouse, co-habitee and/or lineal descendants
by blood or adoption or any person or persons acting in its or their capacity as trustee or trustees of a trust of which such individual
is the settler or any company controlled directly or indirectly by any aforementioned persons or in which such aforementioned persons
have 20 per cent. or more of the voting power at a general meeting of such company or 20 per cent. or more of the equity share
capital of such company; and

 

		(c)	any Affiliate of any person in paragraphs (a) and (b) above,

 

“Authority”
has the meaning set out in the SPA;

 

“B Ordinary
Shares” has the meaning set out in the Investment Agreement;

 

“BCPI
Call Option” means the call option granted to BCPI by Clause 15.2;

 

“BCPI
Completion” means the completion of the sale and purchase of the GPHS Loan Notes;

 

“BCPI
Exercise Date” means the date of service of the BCPI Exercise Notice;

 

“BCPI
Exercise Notice” means the written notice given in accordance with Clause 16.1 or 17.1 substantially in the form set
out in Schedule 4;

 

“BCPI
Lapse” means lapse of the BCPI Put Option in accordance with Clause 15.1 or the BCPI Call Options in accordance with
Clause 15.2;

 

“BCPI
Loan Note Instrument” means the deed constituting the BCPI Loan Notes to be entered into by BCPI in the Agreed Form;

 

“BCPI
Loan Notes” means the 0.1 per cent. loan notes in an aggregate principal amount of £[ · ]
constituted by the BCPI Loan Note Instrument in the Agreed Form;

 

“BCPI
Put Option” means the option granted to the Managers by Clause 16.1;

 

“Business
Day” means a day other than a Saturday or Sunday or a public holiday in England and Wales, Luxembourg and the United
States;

 

    	 	2	 

     

    

 

“CPHAC
Call Option” means the call option granted to CPHAC by Clause 39.2;

 

“CPHAC
Common Shares” means shares of common stock, par value $0.0001 per share, of CPHAC;

 

“CPHAC
Completion” means the completion of the sale and purchase of the CPIHAC Loan Notes;

 

“CPHAC
Exercise Date” means the date of service of the CPHAC Exercise Notice;

 

“CPHAC
Exercise Notice” means the written notice given in accordance with Clause 40.1 or 41.1 substantially in the form set
out in Schedule 8];

 

“CPHAC
Lapse” means lapse of the CPHAC Put Option in accordance with Clause 39.1 or the CPHAC Call Options in accordance with
Clause 39.2;

 

“CPHAC
Put Option” means the option granted to the Managers by Clause 39.1;

 

“CPHAC
Stockholders Agreement” means a Stockholders Agreement, substantially in the form attached hereto Schedule 9, by and
among Industrea Alexandria LLC, a Delaware limited liability company, CPHAC and the other parties thereto;

 

“CPHI
Call Option” means the call option granted to CPHI by Clause 26.2;

 

“CPHI
Completion” means the completion of the sale and purchase of the CPLLC Loan Notes;

 

“CPHI
Exercise Date” means the date of service of the CPHI Exercise Notice;

 

“CPHI
Exercise Notice” means the written notice given in accordance with Clause 28.1 or 29.1 substantially in the form set
out in Schedule 6;

 

“CPHI
Lapse” means lapse of the CPHI Put Option in accordance with Clause 27.1 or the CPHI Call Options in accordance with
Clause 27.2;

 

“CPHI
Loan Note Instrument” means the deed constituting the CPHI Loan Notes to be entered into by CPHI in the Agreed Form;

 

“CPHI
Loan Notes” means the 0.1 per cent. loan notes in an aggregate principal amount of £[ · ]
constituted by the CPHI Loan Note Instrument in the Agreed Form;

 

“CPHI
Put Option” means the option granted to the Managers by Clause 26.1;

 

“CPIHAC
Call Option” means the call option granted to CPIHAC by Clause 32.2;

 

“CPIHAC
Completion” means the completion of the sale and purchase of the CPHI Loan Notes;

 

“CPIHAC
Exercise Date” means the date of service of the CPIHAC Exercise Notice;

 

“CPIHAC
Exercise Notice” means the written notice given in accordance with Clause 34.1 or 35.1 substantially in the form set
out in Schedule 7;

 

“CPIHAC
Lapse” means lapse of the CPIHAC Put Option in accordance with Clause 33.1 or the CPIHAC Call Options in accordance with
Clause 33.2;

 

“CPIHAC
Loan Note Instrument” means the deed constituting the CPIHAC Loan Notes to be entered into by CPIHAC in the Agreed Form;

 

    	 	3	 

     

    

 

“CPIHAC
Loan Notes” means the 0.1 per cent. loan notes in an aggregate principal amount of £[ · ]
constituted by the CPIHAC Loan Note Instrument in the Agreed Form;

 

“CPIHAC
Put Option” means the option granted to the Managers by Clause 32.1;

 

“CPLLC
Exercise Date” means the date of service of the CPLLC Exercise Notice;

 

“CPLLC
Exercise Notice” means the written notice given in accordance with Clause 22.1 or 23.1 substantially in the form set
out in Schedule 5;

 

“CPLLC
Lapse” means lapse of the CPLLC Put Option in accordance with Clause 21.1 or the CPLLC Call Options in accordance with
Clause 21.2;

 

“CPLLC
Loan Note Instrument” means the deed constituting the CPLLC Loan Notes to be entered into by CPLLC in the Agreed Form;

 

“CPLLC
Loan Notes” means the 0.1 per cent. loan notes in an aggregate principal amount of £[ · ]
constituted by the CPLLC Loan Note Instrument in the Agreed Form;

 

“CPLLC
Put Option” means the option granted to the Managers by Clause 20.1;

 

“Encumbrances”
means a mortgage, charge, lien, option, pledge, claim, equitable right, power of sale, hypothecation, retention of title, right
of pre-emption, right of first refusal or other third-party interest, encumbrance or security interest of any kind or an agreement,
arrangement or obligation to create any of the foregoing, and “Encumber” shall be construed accordingly;

 

“GPHS
Call Option” means the call option granted to GPHS by Clause 8.2;

 

“GPHS
Completion” means the completion of the sale and purchase of the Lux I Loan Notes;

 

“GPHS
Exercise Date” means the date of service of the GPHS Exercise Notice;

 

“GPHS
Exercise Notice” means the written notice given in accordance with Clause 10.1 or 11.1 substantially in the form set
out in Schedule 3;

 

“GPHS
Lapse” means lapse of the GPHS Put Option in accordance with Clause 9.1 or the CPHI Call Options in accordance with Clause
9.2;

 

“GPHS
Loan Note Instrument” means the deed constituting the GPHS Loan Notes to be entered into by GPHS in the Agreed Form;

 

“GPHS
Loan Notes” means the 0.1 per cent. loan notes in an aggregate principal amount of £[ · ]
constituted by the GPHS Loan Note Instrument in the Agreed Form;

 

“GPHS
Put Option” means the option granted to the Managers by Clause 8.1;

 

“Group”
means Lux II, any presently existing or future holding company or undertaking of Lux II and any presently existing or future
subsidiaries and subsidiary undertakings of Lux II or such holding company or undertaking;

 

“Group
Company” means any company within the Group;

 

“Industrea”
means Industrea Acquisition Corp., a Delaware corporation;

 

“Investment
Agreement” means an agreement to be entered into on or around the date of this deed between, amongst others, the Managers,
[ · ] and [ · ];

 

    	 	4	 

     

    

 

“Lapse”
means each of the Lux I Lapse, the GPHS Lapse, the BCPI Lapse, the CPLLC Lapse, the CPHI Lapse, the CPIHAC Lapse and the CPHAC
Lapse;

 

“Law”
means all applicable legislation, statutes, directives, regulations, judgments, decisions, decrees, orders, instruments, by-laws,
and other legislative measures or decisions having the force of law, treaties, conventions and other agreements between states,
or between states and the European Union or other supranational bodies, rules of common law, customary law and equity and all civil
or other codes and of other laws of, or having effect in, any jurisdiction from time to time;

 

“Lux
I Call Option” means the call option granted to Lux I by Clause 2.2;

 

“Lux
I Completion” means the completion of the sale and purchase of the Lux II Loan Notes;

 

“Lux
I Exercise Date” means the date of service of the Lux I Exercise Notice;

 

“Lux
I Exercise Notice” means the written notice given in accordance with Clause 4.1 or 5.1 substantially in the form set
out in Schedule 2;

 

“Lux
I Lapse” means lapse of the Lux I Put Option in accordance with Clause 3.1 or the Lux I Call Options in accordance with
Clause 3.2;

 

“Lux
I Loan Note Instrument” means the deed constituting the Lux I Loan Notes to be entered into by Lux I in the Agreed Form;

 

“Lux
I Loan Notes” means the 0.1 per cent. loan notes in an aggregate principal amount of £[ · ]
constituted by the Lux I Loan Note Instrument in the Agreed Form;

 

“Lux
I Put Option” means the option granted to the Managers by Clause 2.1;

 

“Lux
II Loan Note Instrument” means the deed constituting the Lux II Loan Notes to be entered into by Lux II in the Agreed
Form;

 

“Lux
II Loan Notes” means the 0.1 per cent. loan notes in an aggregate principal amount of £[ · ]
constituted by the Lux II Loan Note Instrument in the Agreed Form;

 

“Master
Merger Agreement” has the meaning given in the SPA;

 

“Nasdaq”
means the Nasdaq Stock Market;

 

“Option”
means each of the Lux I Call Option, the Lux I Put Option, the GPHS Call Option, the GPHS Put Option, the BCPI Call Option, the
BCPI Put Option, the CPLLC Call Option, the CPLLC Put Option, the CPHI Call Option, the CPHI Put Option, the CPIHAC Call Option,
the CPIHAC Call Option, the CPHAC Call Option and the CPHAC Put Option;

 

“Preference
Shares” has the meaning set out in the Investment Agreement;

 

“Rollover
Loan Notes” means the Lux I Loan Notes, Lux II Loan Notes, GPHS Loan Notes, BCPI Loan Notes, CPLLC Loan Notes, CPHI Loan
Notes and CPIHAC Loan Notes;

 

“Securities
Act” means the United States Securities Act of 1933, as amended;

 

“SPA”
means the share purchase agreement between, amongst others, Lux II and the Managers dated [ · ];

 

“SPA
Completion” means the completion of the sale and purchase of the shares of Camfaud Group Limited pursuant to the SPA;
and

 

    	 	5	 

     

    

 

“Tax”
means (a) all forms of income tax, employment-related withholding tax, National Insurance contributions, social security contributions
and employment-related taxes and all related withholdings or deductions of a similar nature; and (b) all related fines, penalties,
charges and interest, in each case, whether directly or primarily chargeable against, recoverable from or attributable to any person
(and “Taxes” and “Taxation” shall be construed accordingly).

 

		1.2	In this Deed, unless the context otherwise requires:

 

		(a)	“holding company” and “subsidiary” mean “holding company” and
 “subsidiary”, respectively, as defined in section 1159 of the Companies Act 2006 and “subsidiary undertaking”
means “subsidiary undertaking” as defined in section 1162 of the Companies Act 2006;

 

		(b)	every reference to a particular Law shall be construed also as a reference to all other Laws made
under the Law referred to and to all such Laws as amended, re-enacted, consolidated or replaced or as their application or interpretation
is affected by other Laws from time to time and whether before or after Completion, provided that, as between the parties, no such
amendment or modification shall apply for the purposes of this Deed to the extent that it would impose any new or extended obligation,
liability or restriction on, or otherwise adversely affect the rights of, any party;

 

		(c)	references to Clauses and Schedules are references to clauses of and schedules to this Deed, references
to paragraphs are references to paragraphs of the Schedule in which the reference appears and references to this Deed include the
Schedules;

 

		(d)	references to the singular shall include the plural and vice versa, and references to one gender
include any other gender;

 

		(e)	references to a “party” mean a party to this Deed and include its successors in title,
personal representatives and permitted assigns;

 

		(f)	references to a “person” include any individual, partnership, body corporate, corporation
sole or aggregate, state or agency of a state, and any unincorporated association or organisation, in each case whether or not
having separate legal personality;

 

		(g)	references to a “company” includes any company, corporation or other body corporate
wherever and however incorporated or established;

 

		(h)	references to “sterling”, “pounds sterling” or “£” are
references to the lawful currency from time to time of the United Kingdom;

 

		(i)	references to “dollar”, “USD” or “$” are references to the
lawful currency from time to time of the United States of America;

 

		(j)	for the purposes of applying a reference to a monetary sum expressed in sterling, an amount in
a different currency shall be deemed to be an amount in sterling translated into pounds sterling at the mid-point pound spot rate
applicable to that non-sterling currency at close of business in London on the relevant date (or, if such day is not a Business
Day, on the Business Day immediately preceding such day) as shown in the Financial Times (London First Edition) published on the
following day or if the Financial Times (London First Edition) is not published on that day, the middle point spot rate quoted
by Barclays Bank plc at the close of business on the preceding Business Day for pounds sterling;

 

    	 	6	 

     

    

 

		(k)	references to times of the day are to London time unless otherwise stated;

 

		(l)	references to writing shall include any modes of reproducing words in a legible and non-transitory
form;

 

		(m)	references to any English legal term for any action, remedy, method of judicial proceeding, legal
document, legal status, court official or any other legal concept or thing shall in respect of any jurisdictions other than England
be deemed to include what most nearly approximates in that jurisdiction to the English legal term;

 

		(n)	words introduced by the word “other” shall not be given a restrictive meaning because
they are preceded by words referring to a particular class of acts, matters or things; and

 

		(o)	general words shall not be given a restrictive meaning because they are followed by words which
are particular examples of the acts, matters or things covered by the general words, and the words “includes” and “including”
shall be construed without limitation.

 

		1.3	The headings and sub-headings in this Deed are inserted for convenience only and shall not affect
the construction of this Deed.

 

		1.4	References to this Deed include this Deed as amended or varied in accordance with its terms.

 

LUX I PUT AND CALL OPTION

 

		2.	GRANT OF THE LUX I OPTIONS

 

		2.1	Conditional upon SPA Completion, Lux I grants to the Managers an option to require Lux I to purchase
all (but not some only) of the Lux II Loan Notes on the terms set out in this Deed.

 

		2.2	Conditional upon SPA Completion, the Managers grant to Lux I an option to purchase all (but not
some only) of the Lux II Loan Notes on the terms set out in this Deed.

 

		2.3	The Lux II Loan Notes shall be sold with full title guarantee free from all Encumbrances and with
all rights attached to them at the date of Lux I Completion.

 

		2.4	Each of the Managers irrevocably waives any right of pre-emption and other restriction on transfer
in respect of the Lux II Loan Notes conferred on him under the articles of association of Lux II or otherwise so as to permit the
sale and purchase of the Lux II Loan Notes in accordance with this Deed.

 

		3.	LUX I OPTION PERIOD

 

		3.1	The Lux I Put Option may only be exercised between SPA Completion and one Business Day after SPA
Completion, failing which the Lux I Put Option will lapse.

 

		3.2	The Lux I Call Option may only be exercised between the time that the Lux I Put Option lapses pursuant
to Clause 3.1 and two Business Days after SPA Completion, failing which the Lux I Call Option will lapse.

 

		3.3	If both of the Lux I Put Option and the Lux I Call Option lapse pursuant to this Clause 3, all
rights and obligations of the parties under this Deed shall terminate except for the provisions of Clauses 49 to 53 inclusive and
any rights and liabilities that have accrued prior to that time.

 

		3.4	For the purposes of Clause 3.1 and Clause 3.2, the date of exercise of the Lux I Put Option or
the Lux I Call Option is the date on which the Lux I Exercise Notice is served.

 

    	 	7	 

     

    

 

		4.	EXERCISE OF LUX I PUT OPTION

 

		4.1	Subject to Clause 3.1, the Lux I Put Option shall be exercised only by the Managers giving Lux I
a Lux I Exercise Notice which shall include:

 

		(a)	the date on which the Lux I Exercise Notice is given;

 

		(b)	a statement to the effect that the Managers are exercising the Lux I Put Option; and

 

		(c)	a signature by or on behalf of each Manager.

 

		4.2	The Lux I Put Option may be exercised only in respect of all of the Lux II Loan Notes.

 

		4.3	Once given, a Lux I Exercise Notice may not be revoked without the written consent of Lux I.

 

		5.	EXERCISE OF LUX I CALL OPTION

 

		5.1	Subject to Clause 3.2, the Lux I Call Option shall be exercised only by Lux I giving the Managers
a Lux I Exercise Notice which shall include:

 

		(a)	the date on which the Lux I Exercise Notice is given;

 

		(b)	a statement to the effect that Lux I is exercising the Lux I Call Option; and

 

		(c)	a signature by or on behalf of Lux I.

 

		5.2	The Lux I Call Option may be exercised only in respect of all of the Lux II Loan Notes.

 

		5.3	Once given, a Lux I Exercise Notice may not be revoked without the written consent of the Managers.

 

		6.	LUX I CONSIDERATION

 

The consideration payable by Lux
I on exercise of the Lux I Put Option or the Lux I Call Option shall be the issue of the Lux I Loan Notes to the Managers in the
same proportions as the Lux II Loan Notes are held by such Managers prior to such exercise.

 

		7.	Lux I COMPLETION

 

		7.1	Lux I Completion shall take place at Latham & Watkins, 99 Bishopsgate, London, EC2M 3XF on
the Lux I Exercise Date or such later date as the parties may agree in writing.

 

		7.2	At Lux I Completion, Lux I shall issue the Lux I Loan Notes to the Managers in accordance with
Clause 6.

 

		7.3	The Managers shall deliver to Lux I at Lux I Completion:

 

		(a)	transfer forms in respect of the Lux II Loan Notes, duly completed in favour of Lux I; and

 

		(b)	loan note certificates in respect of such Lux II Loan Notes.

 

		7.4	If Lux I has complied with its obligation to issue the Lux I Loan Notes in accordance with Clause
7.2 and the Managers fail to comply with their obligations under Clause 7.3, any director of Lux II may give a good discharge for
the consideration on behalf of the Managers and may execute and deliver to Lux I a transfer of the Lux II Loan Notes on behalf
of the Managers. Each Manager hereby:

 

    	 	8	 

     

    

 

		(a)	irrevocably and by way of security for his obligations under this Deed appoints any one director
of Lux II nominated in writing by Lux I as its attorney following the exercise of the Lux I Put Option or Lux I Call Option to
execute, on such Manager’s behalf, a transfer of the Lux II Loan Notes in favour of Lux I and to execute such other documents
and do all such other acts as may be necessary to transfer title to the Lux II Loan Notes to Lux I; and

 

		(b)	authorises the directors of Lux II to approve the registration of such transfers or other documents.

 

GPHS PUT AND CALL OPTION

 

		8.	GRANT OF THE GPHS OPTIONS

 

		8.1	Conditional upon SPA Completion, GPHS grants to the Managers an option to require GPHS to purchase
all (but not some only) of the Lux I Loan Notes on the terms set out in this Deed.

 

		8.2	Conditional upon SPA Completion, the Managers grant to GPHS an option to purchase all (but not
some only) of the Lux I Loan Notes on the terms set out in this Deed.

 

		8.3	The Lux I Loan Notes shall be sold with full title guarantee free from all Encumbrances and with
all rights attached to them at the date of GPHS Completion.

 

		8.4	Each of the Managers irrevocably waives any right of pre-emption and other restriction on transfer
in respect of the Lux I Loan Notes conferred on him under the articles of association of Lux I or otherwise so as to permit the
sale and purchase of the Lux I Loan Notes in accordance with this Deed.

 

		9.	GPHS OPTION PERIOD

 

		9.1	The GPHS Put Option may only be exercised between Lux I Completion and one Business Day after Lux
I Completion, failing which the GPHS Put Option will lapse.

 

		9.2	The GPHS Call Option may only be exercised between the time that the GPHS Put Option lapses pursuant
to Clause 9.1 and two Business Days after Lux I Completion, failing which the GPHS Call Option will lapse.

 

		9.3	If both the GPHS Put Option and the GPHS Call Option lapse pursuant to this Clause 9, all rights
and obligations of the parties under this Deed shall terminate except for the provisions of Clauses 49 to 53 inclusive and any
rights and liabilities that have accrued prior to that time.

 

		9.4	For the purposes of Clause 9.1 and Clause 9.2, the date of exercise of the GPHS Put Option or the
GPHS Call Option is the date on which the GPHS Exercise Notice is served.

 

		10.	EXERCISE OF GPHS PUT OPTION

 

		10.1	Subject to Clause 9.1, the GPHS Put Option shall be exercised only by the Managers giving GPHS
a GPHS Exercise Notice which shall include:

 

		(a)	the date on which the GPHS Exercise Notice is given;

 

		(b)	a statement to the effect that the Managers are exercising the GPHS Put Option; and

 

		(c)	a signature by or on behalf of each Manager.

 

		10.2	The GPHS Put Option may be exercised only in respect of all of the Lux I Loan Notes.

 

    	 	9	 

     

    

 

		10.3	Once given, a GPHS Exercise Notice may not be revoked without the written consent of GPHS.

 

		11.	EXERCISE OF GPHS CALL OPTION

 

		11.1	Subject to Clause 9.2, the GPHS Call Option shall be exercised only by GPHS giving the Managers
a GPHS Exercise Notice which shall include:

 

		(a)	the date on which the GPHS Exercise Notice is given;

 

		(b)	a statement to the effect that GPHS is exercising the GPHS Call Option; and

 

		(c)	a signature by or on behalf of GPHS.

 

		11.2	The GPHS Call Option may be exercised only in respect of all of the Lux I Loan Notes.

 

		11.3	Once given, a GPHS Exercise Notice may not be revoked without the written consent of the Managers.

 

		12.	GPHS CONSIDERATION

 

The consideration
payable by GPHS on exercise of the GPHS Put Option or the GPHS Call Option shall be the issue of the GPHS Loan Notes to the Managers
in the same proportions as the Lux I Loan Notes are held by such Managers prior to such exercise.

 

		13.	GPHS COMPLETION

 

		13.1	GPHS Completion shall take place at Latham & Watkins, 99 Bishopsgate, London, EC2M 3XF on the
GPHS Exercise Date or such later date as the parties may agree in writing.

 

		13.2	At GPHS Completion, GPHS shall issue the GPHS Loan Notes to the Managers in accordance with Clause
12.

 

		13.3	The Managers shall deliver to GPHS at GPHS Completion:

 

		(a)	transfer forms in respect of the Lux I Loan Notes, duly completed in favour of GPHS; and

 

		(b)	loan note certificates in respect of such Lux I Loan Notes.

 

		13.4	If GPHS has complied with its obligation to issue the GPHS Loan Notes in accordance with Clause
13.2 and the Managers fail to comply with their obligations under Clause 13.3, any director of Lux I may give a good discharge
for the consideration on behalf of the Managers and may execute and deliver to GPHS a transfer of the Lux I Loan Notes on behalf
of the Managers. Each Manager hereby:

 

		(a)	irrevocably and by way of security for his obligations under this Deed appoints any one director
of Lux I nominated in writing by GPHS as its attorney following the exercise of the GPHS Put Option or GPHS Call Option to execute,
on such Manager’s behalf, a transfer of the Lux I Loan Notes in favour of GPHS and to execute such other documents and do
all such other acts as may be necessary to transfer title to the Lux I Loan Notes to GPHS; and

 

		(b)	authorises the directors of Lux I to approve the registration of such transfers or other documents.

 

    	 	10	 

     

    

 

BCPI PUT AND CALL OPTION

 

		14.	GRANT OF THE BCPI OPTIONS

 

		14.1	Conditional upon SPA Completion, BCPI grants to the Managers an option to require BCPI to purchase
all (but not some only) of the GPHS Loan Notes on the terms set out in this Deed.

 

		14.2	Conditional upon SPA Completion, the Managers grant to BCPI an option to purchase all (but not
some only) of the GPHS Loan Notes on the terms set out in this Deed.

 

		14.3	The GPHS Loan Notes shall be sold with full title guarantee free from all Encumbrances and with
all rights attached to them at the date of BCPI Completion.

 

		14.4	Each of the Managers irrevocably waives any right of pre-emption and other restriction on transfer
in respect of the GPHS Loan Notes conferred on him under the articles of association of GPHS or otherwise so as to permit the sale
and purchase of the GPHS Loan Notes in accordance with this Deed.

 

		15.	BCPI OPTION PERIOD

 

		15.1	The BCPI Put Option may only be exercised between GPHS Completion and one Business Day after GPHS
Completion, failing which the BCPI Put Option will lapse.

 

		15.2	The BCPI Call Option may only be exercised between the time that the BCPI Put Option lapses pursuant
to Clause 15 and two Business Days after GPHS Completion, failing which the BCPI Call Option will lapse.

 

		15.3	If both the BCPI Put Option and the BCPI Call Option lapse pursuant to this Clause 15, all rights
and obligations of the parties under this Deed shall terminate except for the provisions of Clauses 49 to 53 inclusive and any
rights and liabilities that have accrued prior to that time.

 

		15.4	For the purposes of Clause 15.1 and Clause 15.2, the date of exercise of the BCPI Put Option or
the BCPI Call Option is the date on which the BCPI Exercise Notice is served.

 

		16.	EXERCISE OF BCPI PUT OPTION

 

		16.1	Subject to Clause 21.1, the BCPI Put Option shall be exercised only by the Managers giving BCPI
a BCPI Exercise Notice which shall include:

 

		(a)	the date on which the BCPI Exercise Notice is given;

 

		(b)	a statement to the effect that the Managers are exercising the BCPI Put Option; and

 

		(c)	a signature by or on behalf of each Manager.

 

		16.2	The BCPI Put Option may be exercised only in respect of all of the GPHS Loan Notes.

 

		16.3	Once given, a BCPI Exercise Notice may not be revoked without the written consent of BCPI.

 

		17.	EXERCISE OF BCPI CALL OPTION

 

		17.1	Subject to Clause 15, the BCPI Call Option shall be exercised only by BCPI giving the Managers
a BCPI Exercise Notice which shall include:

 

		(a)	the date on which the BCPI Exercise Notice is given;

 

		(b)	a statement to the effect that BCPI is exercising the BCPI Call Option; and

 

		(c)	a signature by or on behalf of BCPI.

 

    	 	11	 

     

    

 

		17.2	The BCPI Call Option may be exercised only in respect of all of the GPHS Loan Notes.

 

		17.3	Once given, a BCPI Exercise Notice may not be revoked without the written consent of the Managers.

 

		18.	BCPI CONSIDERATION

 

The consideration payable by BCPI
on exercise of the BCPI Put Option or the BCPI Call Option shall be the issue of the BCPI Loan Notes to the Managers in the same
proportions as the GPHS Loan Notes are held by such Managers prior to such exercise.

 

		19.	BCPI COMPLETION

 

		19.1	BCPI Completion shall take place at Latham & Watkins, 99 Bishopsgate, London, EC2M 3XF on the
BCPI Exercise Date or such later date as the parties may agree in writing.

 

		19.2	At BCPI Completion, BCPI shall issue the BCPI Loan Notes to the Managers in accordance with Clause
18.

 

		19.3	The Managers shall deliver to BCPI at BCPI Completion:

 

		(a)	transfer forms in respect of the GPHS Loan Notes, duly completed in favour of BCPI; and

 

		(b)	loan note certificates in respect of such GPHS Loan Notes.

 

		19.4	If BCPI has complied with its obligation to issue the BCPI Loan Notes in accordance with Clause
19.2 and the Managers fail to comply with their obligations under Clause 19.3, any director of GPHS may give a good discharge for
the consideration on behalf of the Managers and may execute and deliver to BCPI a transfer of the GPHS Loan Notes on behalf of
the Managers. Each Manager hereby:

 

		(a)	irrevocably and by way of security for his obligations under this Deed appoints any one director
of GPHS nominated in writing by BCPI as its attorney following the exercise of the BCPI Put Option or BCPI Call Option to execute,
on such Manager’s behalf, a transfer of the GPHS Loan Notes in favour of BCPI and to execute such other documents and do
all such other acts as may be necessary to transfer title to the GPHS Loan Notes to BCPI; and

 

		(b)	authorises the directors of GPHS to approve the registration of such transfers or other documents.

 

CPLLC PUT AND CALL OPTION

 

		20.	GRANT OF THE CPLLC OPTIONS

 

		20.1	Conditional upon SPA Completion, CPLLC grants to the Managers an option to require CPLLC to purchase
all (but not some only) of the BCPI Loan Notes on the terms set out in this Deed.

 

		20.2	Conditional upon SPA Completion, the Managers grant to CPLLC an option to purchase all (but not
some only) of the BCPI Loan Notes on the terms set out in this Deed.

 

		20.3	The BCPI Loan Notes shall be sold with full title guarantee free from all Encumbrances and with
all rights attached to them at the date of CPLLC Completion.

 

    	 	12	 

     

    

 

		20.4	Each of the Managers irrevocably waives any right of pre-emption and other restriction on transfer
in respect of the BCPI Loan Notes conferred on him under the articles of association of BCPI or otherwise so as to permit the sale
and purchase of the BCPI Loan Notes in accordance with this Deed.

 

		21.	CPLLC OPTION PERIOD

 

		21.1	The CPLLC Put Option may only be exercised between BCPI Completion and one Business Day after BCPI
Completion, failing which the CPLLC Put Option will lapse.

 

		21.2	The CPLLC Call Option may only be exercised between the time that the CPLLC Put Option lapses pursuant
to Clause 21.1 and two Business Days after BCPI Completion, failing which the CPLLC Call Option will lapse.

 

		21.3	If both the CPLLC Put Option and the CPLLC Call Option lapse pursuant to this Clause 21, all rights
and obligations of the parties under this Deed shall terminate except for the provisions of Clauses 49 to 53 inclusive and any
rights and liabilities that have accrued prior to that time.

 

		21.4	For the purposes of Clause 21.1 and Clause 21.2, the date of exercise of the CPLLC Put Option or
the CPLLC Call Option is the date on which the CPLLC Exercise Notice is served.

 

		22.	EXERCISE OF CPLLC PUT OPTION

 

		22.1	Subject to Clause 21.1, the CPLLC Put Option shall be exercised only by the Managers giving CPLLC
a CPLLC Exercise Notice which shall include:

 

		(a)	the date on which the CPLLC Exercise Notice is given;

 

		(b)	a statement to the effect that the Managers are exercising the CPLLC Put Option; and

 

		(c)	a signature by or on behalf of each Manager.

 

		22.2	The CPLLC Put Option may be exercised only in respect of all of the BCPI Loan Notes.

 

		22.3	Once given, a CPLLC Exercise Notice may not be revoked without the written consent of CPLLC.

 

		23.	EXERCISE OF CPLLC CALL OPTION

 

		23.1	Subject to Clause 21.2, the CPLLC Call Option shall be exercised only by CPLLC giving the Managers
a CPLLC Exercise Notice which shall include:

 

		(a)	the date on which the CPLLC Exercise Notice is given;

 

		(b)	a statement to the effect that CPLLC is exercising the CPLLC Call Option; and

 

		(c)	a signature by or on behalf of CPLLC.

 

		23.2	The CPLLC Call Option may be exercised only in respect of all of the BCPI Loan Notes.

 

		23.3	Once given, a CPLLC Exercise Notice may not be revoked without the written consent of the Managers.

 

    	 	13	 

     

    

 

		24.	CPLLC CONSIDERATION

 

The consideration payable by CPLLC
on exercise of the CPLLC Put Option or the CPLLC Call Option shall be the issue of the CPLLC Loan Notes to the Managers in the
same proportions as the BCPI Loan Notes are held by such Managers prior to such exercise.

 

		25.	CPLLC COMPLETION

 

		25.1	CPLLC Completion shall take place at Latham & Watkins, 99 Bishopsgate, London, EC2M 3XF on
the CPLLC Exercise Date or such later date as the parties may agree in writing.

 

		25.2	At CPLLC Completion, CPLLC shall issue the CPLLC Loan Notes to the Managers in accordance with
Clause 24.

 

		25.3	The Managers shall deliver to CPLLC at CPLLC Completion:

 

		(a)	transfer forms in respect of the BCPI Loan Notes, duly completed in favour of CPLLC; and

 

		(b)	loan note certificates in respect of such BCPI Loan Notes.

 

		25.4	If CPLLC has complied with its obligation to issue the CPLLC Loan Notes in accordance with Clause
25.2 and the Managers fail to comply with their obligations under Clause 25.3, any director of BCPI may give a good discharge for
the consideration on behalf of the Managers and may execute and deliver to CPLLC a transfer of the BCPI Loan Notes on behalf of
the Managers. Each Manager hereby:

 

		(a)	irrevocably and by way of security for his obligations under this Deed appoints any one director
of BCPI nominated in writing by CPLLC as its attorney following the exercise of the CPLLC Put Option or CPLLC Call Option to execute,
on such Manager’s behalf, a transfer of the BCPI Loan Notes in favour of CPLLC and to execute such other documents and do
all such other acts as may be necessary to transfer title to the BCPI Loan Notes to CPLLC; and

 

		(b)	authorises the directors of BCPI to approve the registration of such transfers or other documents.

 

CPHI PUT AND CALL OPTION

 

		26.	GRANT OF THE CPHI OPTIONS

 

		26.1	Conditional upon SPA Completion, CPHI grants to the Managers an option to require CPHI to purchase
all (but not some only) of the CPLLC Loan Notes on the terms set out in this Deed.

 

		26.2	Conditional upon SPA Completion, the Managers grant to CPHI an option to purchase all (but not
some only) of the CPLLC Loan Notes on the terms set out in this Deed.

 

		26.3	The CPLLC Loan Notes shall be sold with full title guarantee free from all Encumbrances and with
all rights attached to them at the date of CPHI Completion.

 

		26.4	Each of the Managers irrevocably waives any right of pre-emption and other restriction on transfer
in respect of the CPLLC Loan Notes conferred on him under the articles of association of CPLLC or otherwise so as to permit the
sale and purchase of the CPLLC Loan Notes in accordance with this Deed.

 

    	 	14	 

     

    

 

		27.	CPHI OPTION PERIOD

 

		27.1	The CPHI Put Option may only be exercised between CPLLC Completion and one Business Day after CPLLC
Completion, failing which the CPHI Put Option will lapse.

 

		27.2	The CPHI Call Option may only be exercised between the time that the CPHI Put Option lapses pursuant
to Clause 27.1 and two Business Days after CPLLC Completion, failing which the CPHI Call Option will lapse.

 

		27.3	If both the CPHI Put Option and the CPHI Call Option lapse pursuant to this Clause 27, all rights
and obligations of the parties under this Deed shall terminate except for the provisions of Clauses 49 to 53 inclusive and any
rights and liabilities that have accrued prior to that time.

 

		27.4	For the purposes of Clause 27.1 and Clause 27.2, the date of exercise of the CPHI Put Option or
the CPHI Call Option is the date on which the CPHI Exercise Notice is served.

 

		28.	EXERCISE OF CPHI PUT OPTION

 

		28.1	Subject to Clause 27.1, the CPHI Put Option shall be exercised only by the Managers giving CPHI
a CPHI Exercise Notice which shall include:

 

		(a)	the date on which the CPHI Exercise Notice is given;

 

		(b)	a statement to the effect that the Managers are exercising the CPHI Put Option; and

 

		(c)	a signature by or on behalf of each Manager.

 

		28.2	The CPHI Put Option may be exercised only in respect of all of the CPLLC Loan Notes.

 

		28.3	Once given, a CPHI Exercise Notice may not be revoked without the written consent of CPHI.

 

		29.	EXERCISE OF CPHI CALL OPTION

 

		29.1	Subject to Clause 27.2, the CPHI Call Option shall be exercised only by CPHI giving the Managers
a CPHI Exercise Notice which shall include:

 

		(a)	the date on which the CPHI Exercise Notice is given;

 

		(b)	a statement to the effect that CPHI is exercising the CPHI Call Option; and

 

		(c)	a signature by or on behalf of CPHI.

 

		29.2	The CPHI Call Option may be exercised only in respect of all of the CPLLC Loan Notes.

 

		29.3	Once given, a CPHI Exercise Notice may not be revoked without the written consent of the Managers.

 

		30.	CPHI CONSIDERATION

 

The consideration payable by CPHI
on exercise of the CPHI Put Option or the CPHI Call Option shall be the issue of the CPHI Loan Notes to the Managers in the same
proportions as the CPLLC Loan Notes are held by such Managers prior to such exercise.

 

		31.	CPHI COMPLETION

 

		31.1	CPHI Completion shall take place at Latham & Watkins, 99 Bishopsgate, London, EC2M 3XF on the
CPHI Exercise Date or such later date as the parties may agree in writing.

 

    	 	15	 

     

    

 

		31.2	At CPHI Completion, CPHI shall issue the CPHI Loan Notes to the Managers in accordance with Clause
30.

 

		31.3	The Managers shall deliver to CPHI at CPHI Completion:

 

		(a)	transfer forms in respect of the CPLLC Loan Notes, duly completed in favour of Lux I; and

 

		(b)	loan note certificates in respect of such CPLLC Loan Notes.

 

		31.4	If CPHI has complied with its obligation to issue the CPHI Loan Notes in accordance with Clause
31.2 and the Managers fail to comply with their obligations under Clause 31.3, any director of CPLLC may give a good discharge
for the consideration on behalf of the Managers and may execute and deliver to CPHI a transfer of the CPLLC Loan Notes on behalf
of the Managers. Each Manager hereby:

 

		(a)	irrevocably and by way of security for his obligations under this Deed appoints any one director
of CPLLC nominated in writing by CPHI as its attorney following the exercise of the CPHI Put Option or CPHI Call Option to execute,
on such Manager’s behalf, a transfer of the CPLLC Loan Notes in favour of CPHI and to execute such other documents and do
such other acts as may be necessary to transfer title to the CPLLC Loan Notes to CPHI; and

 

		(b)	authorises the directors of CPLLC to approve the registration of such transfers or other documents.

 

CPIHAC PUT AND CALL OPTION

 

		32.	GRANT OF THE CPIHAC OPTIONS

 

		32.1	Conditional upon SPA Completion, CPIHAC grants to the Managers an option to require CPIHAC to purchase
all (but not some only) of the CPHI Loan Notes on the terms set out in this Deed.

 

		32.2	Conditional upon SPA Completion, the Managers grant to CPIHAC an option to purchase all (but not
some only) of the CPHI Loan Notes on the terms set out in this Deed.

 

		32.3	The CPHI Loan Notes shall be sold with full title guarantee free from all Encumbrances and with
all rights attached to them at the date of CPIHAC Completion.

 

		32.4	Each of the Managers irrevocably waives any right of pre-emption and other restriction on transfer
in respect of the CPHI Loan Notes conferred on him under the articles of association of CPHI or otherwise so as to permit the sale
and purchase of the CPHI Loan Notes in accordance with this Deed.

 

		33.	CPIHAC OPTION PERIOD

 

		33.1	The CPIHAC Put Option may only be exercised between CPHI Completion and one Business Day after
CPHI Completion, failing which the CPIHAC Put Option will lapse.

 

		33.2	The CPIHAC Call Option may only be exercised between the time that the CPIHAC Put Option lapses
pursuant to Clause 33.1 and two Business Days after CPHI Completion, failing which the CPIHAC Call Option will lapse.

 

		33.3	If both the CPIHAC Put Option and the CPIHAC Call Option lapse pursuant to this Clause 33, all
rights and obligations of the parties under this Deed shall terminate except for the provisions of Clauses 49 to 53 inclusive and
any rights and liabilities that have accrued prior to that time.

 

    	 	16	 

     

    

 

		33.4	For the purposes of Clause 33.1 and Clause 33.2, the date of exercise of the CPIHAC Put Option
or the CPIHAC Call Option is the date on which the CPIHAC Exercise Notice is served.

 

		34.	EXERCISE OF CPIHAC PUT OPTION

 

		34.1	Subject to Clause 33.1, the CPIHAC Put Option shall be exercised only by the Managers giving CPIHAC
a CPIHAC Exercise Notice which shall include:

 

		(a)	the date on which the CPIHAC Exercise Notice is given;

 

		(b)	a statement to the effect that the Managers are exercising the CPIHAC Put Option; and

 

		(c)	a signature by or on behalf of each Manager.

 

		34.2	The CPIHAC Put Option may be exercised only in respect of all of the CPHI Loan Notes.

 

		34.3	Once given, a CPIHAC Exercise Notice may not be revoked without the written consent of CPIHAC.

 

		35.	EXERCISE OF CPIHAC CALL OPTION

 

		35.1	Subject to Clause 33.2, the CPIHAC Call Option shall be exercised only by CPIHAC giving the Managers
a CPIHAC Exercise Notice which shall include:

 

		(a)	the date on which the CPIHAC Exercise Notice is given;

 

		(b)	a statement to the effect that CPIHAC is exercising the CPIHAC Call Option; and

 

		(c)	a signature by or on behalf of CPIHAC.

 

		35.2	The CPIHAC Call Option may be exercised only in respect of all of the CPHI Loan Notes.

 

		35.3	Once given, a CPIHAC Exercise Notice may not be revoked without the written consent of the Managers.

 

		36.	CPIHAC CONSIDERATION

 

The consideration payable by CPIHAC
on exercise of the CPIHAC Put Option or the CPIHAC Call Option shall be the issue of the CPIHAC Loan Notes to the Managers in the
same proportions as the CPHI Loan Notes are held by such Managers prior to such exercise.

 

		37.	CPIHAC COMPLETION

 

		37.1	CPIHAC Completion shall take place at Latham & Watkins, 99 Bishopsgate, London, EC2M 3XF on
the CPIHAC Exercise Date or such later date as the parties may agree in writing.

 

		37.2	At CPIHAC Completion, CPIHAC shall issue the CPIHAC Loan Notes to the Managers in accordance with
Clause 36.

 

		37.3	The Managers shall deliver to CPIHAC at CPIHAC Completion:

 

		(a)	transfer forms in respect of the CPHI Loan Notes, duly completed in favour of CPIHAC; and

 

    	 	17	 

     

    

 

		(b)	loan note certificates in respect of such CPHI Loan Notes.

 

		37.4	If CPIHAC has complied with its obligation to issue the CPIHAC Loan Notes in accordance with Clause
37.2 and the Managers fail to comply with their obligations under Clause 37.3, any director of CPHI may give a good discharge for
the consideration on behalf of the Managers and may execute and deliver to CPIHAC a transfer of the CPHI Loan Notes on behalf of
the Managers. Each Manager hereby:

 

		(a)	irrevocably and by way of security for his obligations under this Deed appoints any one director
of CPHI nominated in writing by CPIHAC as its attorney following the exercise of the CPIHAC Put Option or CPIHAC Call Option to
execute, on such Manager’s behalf, a transfer of the CPHI Loan Notes in favour of CPIHAC and to execute such other documents
and do all such other acts as may be necessary to transfer title to the CPHI Loan Notes to CPIHAC; and

 

		(b)	authorises the directors of CPHI to approve the registration of such transfers or other documents.

 

CPHAC PUT AND CALL OPTION

 

		38.	GRANT OF THE CPHAC OPTIONS

 

		38.1	Conditional upon SPA Completion, CPHAC grants to the Managers an option to require CPHAC to purchase
all (but not some only) of the CPIHAC Loan Notes on the terms set out in this Deed.

 

		38.2	Conditional upon SPA Completion, the Managers grant to CPHAC an option to purchase all (but not
some only) of the CPIHAC Loan Notes on the terms set out in this Deed.

 

		38.3	The CPIHAC Loan Notes shall be sold with full title guarantee free from all Encumbrances and with
all rights attached to them at the date of CPHAC Completion.

 

		38.4	Each of the Managers irrevocably waives any right of pre-emption and other restriction on transfer
in respect of the CPIHAC Loan Notes conferred on him under the articles of association of CPIHAC or otherwise so as to permit the
sale and purchase of the CPIHAC Loan Notes in accordance with this Deed.

 

		39.	CPHAC OPTION PERIOD

 

		39.1	The CPHAC Put Option may only be exercised between CPIHAC Completion and one Business Day after
CPIHAC Completion, failing which the CPHAC Put Option will lapse.

 

		39.2	The CPHAC Call Option may only be exercised between the time that the CPHAC Put Option lapses pursuant
to Clause 39.1 and two Business Days after CPIHAC Completion, failing which the CPHAC Call Option will lapse.

 

		39.3	If both the CPHAC Put Option and the CPHAC Call Option lapse pursuant to this Clause 39, all rights
and obligations of the parties under this Deed shall terminate except for the provisions of Clauses 49 to 53 inclusive and any
rights and liabilities that have accrued prior to that time.

 

		39.4	For the purposes of Clause 39.1 and Clause 39.2, the date of exercise of the CPHAC Put Option or
the CPHAC Call Option is the date on which the CPHAC Exercise Notice is served.

 

    	 	18	 

     

    

 

		40.	EXERCISE OF CPHAC PUT OPTION

 

		40.1	Subject to Clause 39.1, the CPHAC Put Option shall be exercised only by the Managers giving CPHAC
a CPHAC Exercise Notice which shall include:

 

		(a)	the date on which the CPHAC Exercise Notice is given;

 

		(b)	a statement to the effect that the Managers are exercising the CPHAC Put Option; and

 

		(c)	a signature by or on behalf of each Manager.

 

		40.2	The CPHAC Put Option may be exercised only in respect of all of the CPIHAC Loan Notes.

 

		40.3	Once given, a CPHAC Exercise Notice may not be revoked without the written consent of CPHAC.

 

		41.	EXERCISE OF CPHAC CALL OPTION

 

		41.1	Subject to Clause 39.1, the CPHAC Call Option shall be exercised only by CPHAC giving the Managers
a CPHAC Exercise Notice which shall include:

 

		(a)	the date on which the CPHAC Exercise Notice is given;

 

		(b)	a statement to the effect that CPHAC is exercising the CPHAC Call Option; and

 

		(c)	a signature by or on behalf of CPHAC.

 

		41.2	The CPHAC Call Option may be exercised only in respect of all of the CPIHAC Loan Notes.

 

		41.3	Once given, a CPHAC Exercise Notice may not be revoked without the written consent of the Managers.

 

		42.	CPHAC CONSIDERATION

 

The consideration payable by CPHAC
to each Manager on exercise of the CPHAC Put Option or the CPHAC Call Option with respect to such Manager’s CPIHAC Loan Note
shall be the issue of a number of CPHAC Common Shares equal to the quotient of (i) the outstanding principal amount in U.S. dollars
of such Manager’s CPIHAC Loan Note divided by (ii) $10.20.

 

		43.	CPHAC COMPLETION

 

		43.1	CPHAC Completion shall take place at Latham & Watkins, 99 Bishopsgate, London, EC2M 3XF on
the CPHAC Exercise Date or such later date as the parties may agree in writing.

 

		43.2	At CPHAC Completion, CPHAC shall:

 

		(a)	issue shares to the Managers in accordance with Clause 42; and

 

		(b)	deliver to each Manager a duly executed counterpart to the CPHAC Stockholders Agreement.

 

		43.3	The Managers shall deliver to CPHAC at CPHAC Completion:

 

		(a)	transfer forms in respect of the CPIHAC Loan Notes, duly completed in favour of CPHAC;

 

		(b)	loan note certificates in respect of such CPIHAC Loan Notes; and

 

    	 	19	 

     

    

 

		(c)	duly executed counterparts to the CPHAC Stockholders Agreement.

 

		43.4	If CPHAC has complied with its obligation to issue the shares in accordance with Clause 43.2 and
the Managers fail to comply with their obligations under Clause 43.3, any director of CPIHAC may give a good discharge for the
consideration on behalf of the Managers and may execute and deliver to CPHAC a transfer of the CPIHAC Loan Notes on behalf of the
Managers. Each Manager hereby:

 

		(a)	irrevocably and by way of security for his obligations under this Deed appoints any one director
of CPIHAC nominated in writing by CPHAC as its attorney following the exercise of the CPHAC Put Option or CPHAC Call Option to
execute, on such Manager’s behalf, a transfer of the CPIHAC Loan Notes in favour of CPHAC and to execute such other documents
and do all such other acts as may be necessary to transfer title to the CPIHAC Loan Notes to CPHAC; and

 

		(b)	authorises the directors of CPIHAC to approve the registration of such transfers or other documents.

 

		44.	TERMINATION

 

		44.1	This Deed may be terminated by Lux I, Lux II, GPHS, BCPI, CPLLC, CPHI, CPIHAC or CPHAC (in their
sole discretion) at any time prior to CPHAC Completion (whether or not any Option has been exercised) by written notice served
on the Managers if:

 

		(a)	a breach of any of the warranties set forth in Clause 46.1 (excluding the warranty at Clause 46.1(c))
given as at the date of this Deed has occurred;

 

		(b)	a breach of the warranties set forth in Clause 46.1 given as of each of Lux I Completion, GPHS
Completion, BCPI Completion, CPLLC Completion, CPHI Completion, CPIHAC Completion and CPHAC Completion would occur at the relevant
completion date; or

 

		(c)	a breach of any Manager undertakings in Clause 47 has occurred.

 

If this Deed is terminated in accordance
with this Clause 44, all rights and obligations of the parties under this Deed shall terminate except for the provisions of Clauses
49 to 53 inclusive and any rights and liabilities that have accrued prior to that time.

 

		45.	Tax

 

		45.1	Each Manager severally agrees to pay on demand to CPHI (or such other entity nominated by CPHI)
an amount equal to any liability for Tax whenever arising for which Lux I, Lux II, GPHS, BCPI, CPLLC, CPHI, CPIHAC, CPHAC, a Group
Company or a particular Manager’s employing entity is liable as a result of the execution of this Deed or any transaction
performed or contemplated pursuant to this Deed in respect of the relevant Manager, including the grant or exercise of any Option
or the issue, sale, transfer or acquisition of any of the Rollover Loan Notes.

 

		45.2	The provisions of this Clause 45 shall survive termination, lapse or Completion, as the case may
be, and shall continue for a period of seven years from the date of this Deed.

 

		46.	WARRANTIES

 

		46.1	Each of the Managers warrants to Lux I, Lux II, GPHS, BCPI, CPLLC, CPHI, CPIHAC and CPHAC that
as at the date of this Deed and (i) in respect of the Lux II Loan Notes, the date of Lux I Completion; (ii) in respect of the Lux
I Loan Notes, the date of GPHS Completion; (iii) in respect of the GPHS Loan Notes, the date of BCPI Completion; (iv) in respect
of the BCPI Loan Notes, the date of CPLLC Completion; (v) in respect of the CPLLC Loan Notes, the date of CPHI Completion; (vi)
in respect of the CPHI Loan Notes, the date of CPIHAC Completion; and (vii) in respect of the CPIHAC Loan Notes, the date of CPHAC
Completion:

 

    	 	20	 

     

    

 

		(a)	the execution and delivery of, and the performance by him of his obligations under, this Deed and
each document to be entered into by him pursuant to this Deed will not:

 

		(i)	result in a breach of, or constitute a default under, any instrument to which he is a party or
by which he is bound;

 

		(ii)	require that Manager to obtain any consent or approval of, or give any notice to or make any registration
with, any Authority or any other person that has not been obtained or made at the date of this Deed both on an unconditional basis
and on a basis which cannot be revoked; or

 

		(iii)	result in a breach of any Law or of any order, judgement or decree of any Authority to which he
is a party or by which he is bound; and

 

		(b)	he has all legal right, power and authority to enter into, execute, deliver and perform this Deed
and each document to be entered into by him pursuant to this Deed, each of which constitutes valid and binding obligations on him
in accordance with its terms; and

 

		(c)	he is the sole legal and beneficial owner of, has the right to exercise all voting and other rights
over, and is entitled to or has been authorised to sell and transfer the full legal and beneficial ownership of, the Lux I Loan
Notes, the Lux II Loan Notes, the GPHS Loan Notes, the BCPI Loan Notes, the CPLLC Loan Notes, the CPHI Loan Notes and the CPIHAC
Loan Notes, free from all Encumbrances.

 

		46.2	Each of the Managers warrants to CPHAC as at the date of this Deed and as at the date of CPHAC
Completion in the terms set out in Schedule 10.

 

		46.3	Each of Lux I, Lux II, GPHS, BCPI, CPLLC, CPHI, CPIHAC and CPHAC warrants (on behalf of itself
only) to each of the Managers that as at the date of this Deed:

 

		(a)	the execution and delivery of, and the performance by it of its obligations under, this Deed and
each document to be entered into by it pursuant to this Deed will not:

 

		(i)	result in a breach of, or constitute a default under, its constitutional documents or any instrument
to which it is a party or by which it is bound;

 

		(ii)	require it to obtain any consent or approval of, or give any notice to or make any registration
with, any Authority or any other person that has not been obtained or made at the date of this Deed both on an unconditional basis
and on a basis which cannot be revoked other than, with respect to CPHAC, the filing of a Notice of Exempt Offering of Securities
on Form D with the United States Securities Exchange Commission under Regulation D of the Securities Act and those
required by the Nasdaq; or

 

		(iii)	result in a breach of any Laws or of any order, judgement or decree of any Authority to which it
is a party or by which it is bound; and

 

		(b)	it has all legal right, power and authority to enter into, execute, deliver and perform this Deed
and each document to be entered into by it pursuant to this Deed, each of which constitutes valid and binding obligations on it
in accordance with its terms.

 

    	 	21	 

     

    

 

		46.4	CPHAC warrants to each of the Managers as at the date of this Deed and as at the date of the CPHAC
Completion in the terms set out in Schedule 11.

 

		47.	COMPANY PROTECTION

 

Until the earlier
of CPHAC Completion or Lapse, the Managers shall not, without the prior written consent of CPHAC:

 

		(a)	sell, transfer or otherwise dispose of or Encumber its legal or beneficial interest in any of the
Rollover Loan Notes (or any interest in any of them); or

 

		(b)	exercise any votes attaching to the Rollover Loan Notes.

 

		48.	FURTHER ASSURANCE

 

Each party shall, at its own cost,
promptly execute and deliver all such documents, and do all such things, as the other party may from time to time reasonably require
for the purpose of giving full effect to the provisions of this Deed and to secure for the other party the full benefit of the
rights, powers and remedies conferred upon it under this Deed.

 

		49.	ENTIRE AGREEMENT AND REMEDIES

 

		49.1	This Deed constitutes the entire Deed between the parties and, together with the SPA and the Investment
Agreement, supersedes and extinguishes any prior drafts, deeds, undertakings, representations, warranties, promises, assurances
and arrangements of any nature whatsoever, whether or not in writing, relating thereto.

 

		49.2	If there is any conflict between the terms of this Deed and any other agreement, this Deed shall
prevail unless:

 

		(a)	such other agreement expressly states that it overrides this Deed in the relevant respect; and

 

		(b)	each of the affected parties is also a party to that other agreement or otherwise expressly agrees
in writing that such other agreement shall override this Deed in that respect.

 

		49.3	The rights, powers, privileges and remedies provided in this Deed are cumulative and not exclusive
of any rights, powers, privileges or remedies provided by Law. Without prejudice to any other rights or remedies that a party to
this Deed may have, the parties agree that damages alone may not be an adequate remedy for any breach of the terms of this Deed.
Accordingly, each party may be entitled, without proof of special damages, to seek the remedies of injunction, specific performance
or other equitable relief for any threatened or actual breach of the terms of this Deed.

 

		49.4	Any liability to Lux I, Lux II, GPHS, BCPI, CPLLC, CPHI, CPIHAC or CPHAC under this Deed may in
whole or in part be released, compounded or compromised or any time or indulgence given by Lux I, Lux II, GPHS, BCPI, CPLLC, CPHI,
CPIHAC or CPHAC in its absolute discretion as regards any of the Managers under such liability without in any way prejudicing or
affecting its rights against any other or others of the Managers under the same or a like liability whether joint or several or
otherwise.

 

		50.	NOTICE

 

		50.1	Any notice or other communication given under this Deed or in connection with the matters contemplated
herein shall, except where otherwise specifically provided, be in writing in the English language, addressed as provided in Clause
50.2 and served as stipulated in clause 18.2 of the SPA.

 

    	 	22	 

     

    

 

		50.2	Notices under this Deed shall be sent for the attention of the person and to the address, subject
to Clause 50.3, as set out in the Investment Agreement.

 

		50.3	Any party to this Deed may notify the other party of any change to its address or other details
specified in Clause 50.2, provided that such notification shall only be effective on the date specified in such notice or five
Business Days after the notice is given, whichever is later.

 

		51.	GENERAL

 

		51.1	Where any provision of this Deed is or becomes illegal, invalid or unenforceable in any respect
under the Laws of any jurisdiction, then such provision shall be deemed to be severed from this Deed and, if possible, replaced
with a lawful provision which, as closely as possible, gives effect to the intention of the parties under this Deed and, where
permissible, which shall not affect or impair the legality, validity or enforceability in that, or any other, jurisdiction of any
other provision of this Deed.

 

		51.2	This Deed shall not be assignable in whole or in part, and no party may assign or grant any Encumbrance
over any of its rights under this Deed.

 

		51.3	Each person that has rights under this Deed is acting on its own behalf.

 

		51.4	Except as otherwise stated in this Deed, time is of the essence in each provision of this Deed.

 

		52.	COUNTERPARTS

 

This Deed may be executed in any
number of counterparts. Each counterpart shall constitute an original of this Deed, but all the counterparts together shall constitute
but one and the same instrument.

 

		53.	GOVERNING LAW AND JURISDICTION

 

This Deed (together with all documents
referred to in this Deed) and any dispute or claim (including any non-contractual dispute or claim) that arises out of or in connection
with this Deed (and any documents referred to in this Deed) is governed by and construed in accordance with English law. The parties
irrevocably agree that the English courts have exclusive jurisdiction to settle any dispute or claim (including any non-contractual
dispute or claim) that arises out of or in connection with this Deed (and any documents referred to in this Deed).

 

    	 	23	 

     

    

 

Schedule
1

MANAGERS

 

    	 	24	 

     

    

 

Schedule
2

Lux
I EXERCISE NOTICE

 

[insert date]

 

[Managers] / [Lux Concrete Holdings I S.à
r.l.]

 

[insert address]

 

Dear Sirs,

 

We refer to the put and call option deed dated
[ · ] (the “Option Deed”) between us concerning
the acquisition by [relevant company] from the Managers of the [relevant notes]. Capitalised terms used and not defined
herein shall have the meaning ascribed to them in the Option Deed.

 

[If Managers exercise Lux I Put Option]
[We hereby notify you that each Manager is exercising his Lux I Put Option in accordance with Clause 2.1 of the Option Deed.] OR

 

[If Lux I exercises Lux I Call Option]
[We hereby notify you that Lux I is exercising the Lux I Call Option in accordance with Clause 2.2 of the Option Deed.]

 

Sincerely yours,

 

[Managers] / [Lux Concrete Holdings I S.à
r.l.]

 

	By:	 	 
	 	 	 
	Name: [ · ]	 
	 	 
	Title: [ · ]	 

 

    	 	25	 

     

    

 

Schedule
3

GPHS
EXERCISE NOTICE

 

[insert date]

 

[Managers] / [Greystone Pumping Holdings SRL]

 

[insert address]

 

Dear Sirs,

 

We refer to the put and call option deed dated
[ · ] (the “Option Deed”) between us concerning
the acquisition by [relevant company] from the Managers of the [relevant notes]. Capitalised terms used and not defined
herein shall have the meaning ascribed to them in the Option Deed.

 

[If Managers exercise GPHS Put Option]
[We hereby notify you that each Manager is exercising his GPHS Put Option in accordance with Clause 8.1 of the Option Deed.] OR

 

[If Lux I exercises GPHS Call Option]
[We hereby notify you that GPHS is exercising the GPHS Call Option in accordance with Clause 8.2 of the Option Deed.]

 

Sincerely yours,

 

[Managers] / [Greystone Pumping Holdings SRL]

 

	By:	 	 
	 	 	 
	Name: [ · ]	 
	 	 
	Title: [ · ]	 

 

    	 	26	 

     

    

 

Schedule
4

BCPI
EXERCISE NOTICE

 

[insert date]

 

[Managers] / [Brundage-Bone Concrete Pumping,
Inc.]

 

[insert address]

 

Dear Sirs,

 

We refer to the put and call option deed dated
[ · ] (the “Option Deed”) between us concerning
the acquisition by [relevant company] from the Managers of the [relevant notes]. Capitalised terms used and not defined
herein shall have the meaning ascribed to them in the Option Deed.

 

[If Managers exercise BCPI Put Option]
[We hereby notify you that each Manager is exercising his BCPI Put Option in accordance with Clause 4.1 of the Option Deed.] OR

 

[If Lux I exercises BCPI Call Option]
[We hereby notify you that BCPI is exercising the BCPI Call Option in accordance with Clause 4.2 of the Option Deed.]

 

Sincerely yours,

 

[Managers] / [Brundage-Bone Concrete Pumping,
Inc.]

 

	By:	 	 
	 	 	 
	Name: [ · ]	 
	 	 
	Title: [ · ]	 

 

    	 	27	 

     

    

 

Schedule
5

CPLLC
EXERCISE NOTICE

 

[insert date]

 

[Managers] / [Concrete Pumping Intermediate
Holdings, LLC]

 

[insert address]

 

Dear Sirs,

 

We refer to the put and call option deed dated
[ · ] (the “Option Deed”) between us concerning
the acquisition by [relevant company] from the Managers of the [relevant notes]. Capitalised terms used and not defined
herein shall have the meaning ascribed to them in the Option Deed.

 

[If Managers exercise CPLLC Put Option]
[We hereby notify you that each Manager is exercising his CPLLC Put Option in accordance with Clause 20.1 of the Option Deed.]
or

 

[If CPLLC exercises CPLLC Call Option]
[We hereby notify you that CPLLC is exercising the CPLLC Call Option in accordance with Clause 20.2 of the Option Deed.]

 

Sincerely yours,

 

[Managers]/ [Concrete Pumping Intermediate
Holdings, LLC]

 

	By:	 	 
	 	 	 
	Name: [ · ]	 
	 	 
	Title: [ · ]	 

 

    	 	28	 

     

    

 

Schedule
6

CPHI
EXERCISE NOTICE

 

[insert date]

 

[Managers] / [Concrete Pumping Holdings, Inc.]

 

[insert address]

 

Dear Sirs,

 

We refer to the put and call option deed dated
[ · ] (the “Option Deed”) between us concerning
the acquisition by [relevant company] from the Managers of the [relevant notes]. Capitalised terms used and not defined
herein shall have the meaning ascribed to them in the Option Deed.

 

[If Managers exercise CPHI Put Option]
[We hereby notify you that each Manager is exercising his CPHI Put Option in accordance with Clause 26.1 of the Option Deed.] OR

 

[If CPHI exercises CPHI Call Option]
[We hereby notify you that CPHI is exercising the CPHI Call Option in accordance with Clause 26.2 of the Option Deed.]

 

Sincerely yours,

 

[Managers]/ [Concrete Pumping Holdings, Inc.]

 

	By:	 	 
	 	 	 
	Name: [ · ]	 
	 	 
	Title: [ · ]	 

 

    	 	29	 

     

    

 

Schedule
7

CPIHAC
EXERCISE NOTICE

 

[insert date]

 

[Managers] / [Concrete Pumping Intermediate
Acquisition Corp.]

 

[insert address]

 

Dear Sirs,

 

We refer to the put and call option deed dated
[ · ] (the “Option Deed”) between us concerning
the acquisition by [relevant company] from the Managers of the [relevant notes]. Capitalised terms used and not defined
herein shall have the meaning ascribed to them in the Option Deed.

 

[If Managers exercise CPIHAC Put Option]
[We hereby notify you that each Manager is exercising his CPIHAC Put Option in accordance with Clause 32.1 of the Option Deed.]
OR

 

[If CPIHAC exercises CPIHAC Call Option]
[We hereby notify you that CPIHAC is exercising the CPIHAC Call Option in accordance with Clause 32.2 of the Option Deed.]

 

Sincerely yours,

 

[Managers]/ [Concrete Pumping Intermediate
Acquisition Corp.]

 

	By:	 	 
	 	 	 
	Name: [ · ]	 
	 	 
	Title: [ · ]	 

 

    	 	30	 

     

    

 

Schedule
8

CPHAC
EXERCISE NOTICE

 

[insert date]

 

[Managers] / [Concrete Pumping Holdings Acquisition
Corporation]

 

[insert address]

 

Dear Sirs,

 

We refer to the put and call option deed dated
[ · ] (the “Option Deed”) between us concerning
the acquisition by [relevant company] from the Managers of the [relevant notes]. Capitalised terms used and not defined
herein shall have the meaning ascribed to them in the Option Deed.

 

[If Managers exercise CPHAC Put Option]
[We hereby notify you that each Manager is exercising his CPHAC Put Option in accordance with Clause 38.1 of the Option Deed.]
OR

 

[If CPHAC exercises CPHAC Call Option]
[We hereby notify you that CPHAC is exercising the CPHAC Call Option in accordance with Clause 38.2 of the Option Deed.]

 

Sincerely yours,

 

[Managers] / [Concrete Pumping Holdings Acquisition
Corporation]

 

	By:	 	 
	 	 	 
	Name: [ · ]	 
	 	 
	Title: [ · ]	 

 

    	 	31	 

     

    

 

Schedule
9

stockholders
agreement

 

    	 	32	 

     

    

 

Schedule
10

manager
warranties

 

The CPHAC Common Shares
to be acquired by the Manager pursuant to this Deed in respect of such Manager’s CPIHAC Loan Notes are referred to in this
Annex A as the “Investment.”

 

(1)         The
Manager has been furnished with and has read this Deed, the SPA, the Master Merger Agreement and the Stockholders Agreement. The
Manger is aware and acknowledges that:

 

A.       CPHAC
has only recently been formed and has no financial or operating history.

 

B.       There
are substantial risks incident to the Investment.

 

C.       No
governmental agency has made any finding or determination as to the fairness of the Investment.

 

(2)         The
Manager has had an opportunity to consult with his or her own tax advisor regarding all United States federal, state, local and
United Kingdom tax considerations applicable to the Investment.None of CPHAC or any of its Affiliates, employees, agents, members,
equity holders, directors, officers, representatives or consultants assume any responsibility for the tax consequences to the Manager
of the acquisition or ownership of the Investment; provided that CPHAC, Industrea and CPIHAC shall comply with their obligations
under the Master Merger Agreement and under this Deed.

 

(3)         The
Manager may be required to bear the economic risk of the Investment for an indefinite period of time because the Investment has
not been registered for sale under the Securities Act and therefore cannot be sold or otherwise transferred unless either the Investment
is subsequently registered under the Securities Act, or an exemption from such registration is available, and the Investment cannot
be sold or otherwise transferred unless it is registered under applicable state securities or an exemption from such registration
is available.

 

(4)         The
Manager’s right to transfer the Investment will be restricted by the terms of the Stockholders Agreement.

 

(5)         The
Manager is not acquiring the Investment as a result of any advertisement, article, notice or other communication published in any
newspaper, magazine or similar media or broadcast over television or radio, any seminar or meeting, or any solicitation of a subscription
by a person not previously known to the Manager in connection with investments in securities generally.

 

(6)         The
Manager is an “Accredited Investor” (as defined in Rule 501 promulgated under the Securities Act).

 

(7)         The
Manager has been furnished all materials relating to CPHAC and the Investment that the Manager has requested and has been afforded
the opportunity to ask questions and receive answers concerning the terms and conditions of the offering and obtain any additional
information regarding the Investment which CPHAC possesses or can acquire without unreasonable effort or expense.

 

(8)         Representatives
of CPHAC have answered all inquiries that the Manager has made of them concerning CPHAC and their Affiliates, or any other matters
relating to the formation and proposed operation of CPHAC and the offering and sale of the Investment. The Manager acknowledges
that none of CPHAC or any Affiliate thereof has rendered or will render any investment advice or securities valuation advice to
the Manager and that the Manager is neither subscribing for nor acquiring the Investment in reliance upon, or with the expectation
of, any such advice.

 

    	 	33	 

     

    

 

(9)         The
Manager has not been furnished any offering literature with respect to the Investment or CPHAC. In addition, no representations
or warranties have been made to the Manager with respect to the Investment or CPHAC, and the Manager has not relied upon any such
representation or warranty in making this subscription.

 

(10)       The
Manager has such knowledge and experience in financial and business matters that the Manager is capable of evaluating the merits
and risks of the Investment and of making an informed investment decision with respect thereto.

 

(11)       The
Manager is relying on his or her own investigation and analysis in making the Investment and has consulted his or her own legal,
tax, financial and accounting advisors to determine the merits and risks thereof.

 

(12)       The
Manager is not relying on any due diligence investigation that Industrea Acquisition Corp. and/or its Affiliates and advisors may
have conducted with respect to CPHI or any of its Affiliates. Except to the extent set forth in this Deed, none of CPHAC, Industrea
and/or its Affiliates, or any of their respective current or former equity holders, members, managers, partners, officers, directors,
employees, affiliates or advisors (i) makes any representation or warranty as to the information provided to the Manager regarding
the Investment nor represents or warrants such information as being all-inclusive or to contain all information that may be desirable
or required in order to properly evaluate the Investment or (ii) will have any liability with respect to any use or reliance upon
any of the Information.

 

(13)       The
Manager is able to bear the economic risks of the Investment and consequently, without limiting the generality of the foregoing,
is able to hold the Investment for an indefinite period of time and has sufficient net worth to sustain a loss of the entire Investment
in the event such loss should occur.

 

(14)       The
Manager is acquiring the Investment for the Manager’s own account as principal for investment purposes and not with a view
to the distribution or sale thereof, subject to any requirement of law that its property at all times be within its control.

 

(15)       The
Manager recognises that CPHAC’s issuance and sale of the Investment to the Manager will be based upon the Manager’s
representations, warranties and covenants set forth above. All representations, warranties and covenants contained in this Deed
(including this Schedule 10) shall survive the consummation of the transactions set forth therein.

 

(16)       The
Manager acknowledges and agrees that the following restrictions and limitations are applicable to any resale or other transfer
of the Investment:

 

A.       The
Investment shall not be sold or otherwise transferred to the extent such sale or transfer is restricted by the Stockholders Agreement
and, if so restricted, may only be sold or transferred if the applicable provisions set forth in the Stockholders Agreement are
satisfied.

 

B.       The
Investment shall not be sold or otherwise transferred unless in compliance with all applicable securities laws.

 

    	 	34	 

     

    

 

Schedule
11

CPHAC
warranties

  

(1)         Upon
consummation of the CPHAC Completion, the CPHAC Common Shares, when issued and delivered pursuant to the terms of this Deed, will
be validly issued, fully paid and non-assessable and will not have been issued in violation of any preemptive rights created under
CPHAC’s certificate of incorporation or the Delaware General Corporation Law. Upon consummation of the CPHAC Completion,
the CPHAC Common Shares will be approved for listing, subject only to official notice of the issuance, on Nasdaq under the symbol
 “BBCP.”

 

(2)         As
of the date hereof, the authorised share capital of Industrea consists of 200,000,000 shares of Class A Common Stock, par value
$0.0001 per share, 20,000,000 shares of Class B Common Stock, par value $0.0001 per share (“Class B Common Stock”
and, together with the Class A Common Stock, “Common Stock”), and 1,000,000 shares of preferred stock, par value
$0.0001 per share (“Preferred Stock”). As of the date hereof: (a) 23,000,000 shares of Class A Common
Stock, 5,750,000 shares of Class B Common Stock and no shares of Preferred Stock are issued and outstanding; (b) 34,100,000
warrants, each exercisable to purchase one share of Class A Common Stock at $11.50 per share (“Warrants”), are
issued and outstanding, including 11,100,000 private placement warrants; and (c) no shares of Common Stock are subject to
issuance upon exercise of outstanding options. No Warrants are exercisable on or prior to the consummation of the transactions
contemplated by the Master Merger Agreement (the “Closing”). As of the date hereof, Industrea Alexandria LLC
is, and as of immediately prior to the Closing Industrea Alexandria LLC will be, the record and beneficial owner of no less than
5,750,000 shares of Class B Common Stock. All (i) issued and outstanding shares of Common Stock have been duly authorised
and validly issued, are fully paid and are non-assessable and are not subject to preemptive rights and (ii) outstanding Warrants
have been duly authorised and validly issued, are fully paid and are not subject to preemptive rights. Except as set forth above
and pursuant to the Subscription Agreements and the Rollover Agreements (each, as defined in the Master Merger Agreement) and the
Master Merger Agreement, there are no outstanding options, warrants or other rights to subscribe for, purchase or acquire from
Industrea or CPHAC any shares of Common Stock or other equity interests in Industrea or CPHAC (collectively, “Equity Interests”)
or securities convertible into or exchangeable or exercisable for Equity Interests. As of the date hereof, other than with respect
to CPHAC, CPIHAC, Concrete Pumping Merger Sub Inc., and Industrea Acquisition Merger Sub Inc., Industrea has no subsidiaries and
does not own, directly or indirectly, interests or investments (whether equity or debt) in any person, whether incorporated or
unincorporated. There are not any stockholder agreements, voting trusts or other agreements or understandings to which Industrea
or CPHAC is a party or by which either is bound relating to the voting of any Equity Interests, other than (A) the letter agreements
entered into by Industrea in connection with Industrea’s initial public offering on August 1, 2017 pursuant to which Industrea
Alexandria LLC’s and Industrea’s executive officers and independent directors agreed to vote in favor of any proposed
Business Combination (as defined therein), which includes the transactions contemplated by the Master Merger Agreement, and (B)
as contemplated by the Merger Agreement.

 

(3)         Assuming
the accuracy of the Managers’ representations and warranties set forth in Schedule 11, no registration under the Securities
Act is required for the offer and issuance of the CPHAC Common Shares by CPHAC to the Managers.

 

(4)         Neither
CPHAC nor any person acting on its behalf has engaged or will engage in any form of general solicitation or general advertising
(within the meaning of Regulation D) in connection with any offer or sale of the Investment.

 

(5)         All
representations, warranties and covenants contained in this Deed (including this Schedule 11) shall survive the consummation of
the transactions set forth herein.

 

    	 	35	 

     

    

 

This DEED has been entered into on the date
stated at the beginning of it.

 

	
        EXECUTED AND DELIVERED AS A DEED

         

        by [ · ]

         

        acting by attorney:

         

        ______________________

        

         

        in the presence of:

         
	
        )

        )

        )

         

         
	 
	.........................................................	 	Signature of Witness
	 	 	 
	.........................................................	 	Name of Witness
	 	 	 
	.........................................................	 	Address of Witness
	 	 	 
	.........................................................	 	Occupation of Witness
	 	 	 
	
        EXECUTED AND DELIVERED AS A DEED

         

        by [ · ]

         

        acting by attorney:

         

        ______________________

         

        in the presence of:

         
	
        )

        )

        )

         

         
	 
	.........................................................	 	Signature of Witness
	 	 	 
	.........................................................	 	Name of Witness
	 	 	 
	.........................................................	 	Address of Witness
	 	 	 
	.........................................................	 	Occupation of Witness

 

    	 	36	 

     

    

 

	
        EXECUTED AND DELIVERED AS A DEED

         

        by [ · ]

         

        acting by attorney:

         

        ______________________

         

        in the presence of:

         
	
        )

        )

        )

         

         
	 
	.........................................................	 	Signature of Witness
	 	 	 
	.........................................................	 	Name of Witness
	 	 	 
	.........................................................	 	Address of Witness
	 	 	 
	.........................................................	 	Occupation of Witness
	 	 	 
	
        EXECUTED AND DELIVERED AS A DEED

         

        by [ · ]

         

        acting by attorney:

         

        ______________________

         

        in the presence of:

         
	
        )

        )

        )

         

         
	 
	.........................................................	 	Signature of Witness
	 	 	 
	.........................................................	 	Name of Witness
	 	 	 
	.........................................................	 	Address of Witness
	 	 	 
	.........................................................	 	Occupation of Witness

 

    	 	37	 

     

    

 

	EXECUTED and delivered	)	 
	as a DEED by	)	 
	CONCRETE PUMPING	)	 
	HOLDINGS, INC.	)	 
	acting by	)	 
	a director, in the presence of:	)	 
	 	 	 
	Signature of Witness	 	 
	Name of Witness	 	 
	Address of Witness	 	 
	 	 	 
	Occupation of Witness	 	 
	 	 	 
	EXECUTED and delivered	)	 
	as a DEED by	)	 
	CONCRETE PUMPING	)	 
	INTERMEDIATE HOLDINGS,	)	 
	LLC	)	 
	acting by	)	 
	a director, in the presence of:	)	 
	 	 	 
	Signature of Witness	 	 
	Name of Witness	 	 
	Address of Witness	 	 
	 	 	 
	Occupation of Witness	 	 
	 	 	 
	EXECUTED and delivered	)	 
	as a DEED by	)	 
	BRUNDAGE-BONE CONCRETE	)	 
	PUMPING, INC.	)	 
	acting by	)	 
	a director, in the presence of:	)	 
	 	 	 
	Signature of Witness	 	 
	Name of Witness	 	 
	Address of Witness	 	 
	 	 	 
	Occupation of Witness	 	 

 

    	 	38	 

     

    

 

	EXECUTED and delivered	)	 
	as a DEED by	)	 
	GREYSTONE PUMPING	)	 
	HOLDINGS SRL	)	 
	acting by	)	 
	a director, in the presence of:	)	 
	 	 	 
	Signature of Witness	 	 
	Name of Witness	 	 
	Address of Witness	 	 
	 	 	 
	Occupation of Witness	 	 
	 	 	 
	EXECUTED and delivered	)	 
	as a DEED by	)	 
	LUX CONCRETE HOLDINGS I	)	 
	S.À R.L.	)	 
	acting by	)	 
	a director, in the presence of:	)	 
	 	 	 
	Signature of Witness	 	 
	Name of Witness	 	 
	Address of Witness	 	 
	 	 	 
	Occupation of Witness	 	 
	 	 	 
	EXECUTED and delivered	)	 
	as a DEED by	)	 
	LUX CONCRETE HOLDINGS II	)	 
	S.À R.L.	)	 
	acting by	)	 
	a director, in the presence of:	)	 
	 	 	 
	Signature of Witness	 	 
	Name of Witness	 	 
	Address of Witness	 	 
	 	 	 
	Occupation of Witness	 	 

 

    	 	39	 

     

    

 

	EXECUTED and delivered	)	 
	as a DEED by	)	 
	CONCRETE PUMPING	)	 
	INTERMEDIATE	)	 
	ACQUISITION CORP.	)	 
	acting by	)	 
	a director, in the presence of:	)	 
	 	 	 
	Signature of Witness	 	 
	Name of Witness	 	 
	Address of Witness	 	 
	 	 	 
	Occupation of Witness	 	 
	 	 	 
	EXECUTED and delivered	)	 
	as a DEED by	)	 
	CONCRETE PUMPING	)	 
	HOLDINGS ACQUISITION	)	 
	CORPORATION	)	 
	acting by	)	 
	a director, in the presence of:	)	 
	 	 	 
	Signature of Witness	 	 
	Name of Witness	 	 
	Address of Witness	 	 
	 	 	 
	Occupation of Witness	 	 

 

    	 	40	 

     

    

 

This Agreement has been entered into on the date stated at the
beginning of it.

 

	EXECUTED and delivered by	)	 
	 	 	 
	Brendan Murphy	)	 
	 	 	 
	 	)	/s/ Brendan Murphy
	 	 	 
	 	)	 
	 	 	 
	EXECUTED and delivered by	)	 
	 	 	 
	David Anthony Faud	)	 
	 	 	 
	 	)	/s/ David Anthony Faud
	 	 	 
	 	)	 
	 	 	 
	EXECUTED and delivered by	)	 
	 	 	 
	Peter Faud	)	 
	 	 	 
	 	)	/s/ Peter Faud
	 	 	 
	 	)	 
	 	 	 
	EXECUTED and delivered by	)	 
	 	 	 
	Damian Shepherd	)	 
	 	 	 
	 	)	/s/ Damian Shepherd
	 	 	 
	 	)	 
	 	 	 
	EXECUTED and delivered by	)	 
	 	 	 
	Evelyn Murphy	)	 
	 	 	 
	 	)	/s/ Evelyn Murphy
	 	 	 
	 	)	 

 

     

     

    

 

	EXECUTED and delivered by )	 	 
	 	 	 
	Lux Concrete Holdings II S.à r.l.	)	 
	 	 	 
	 	)	 
	 	 	 
	acting by Mary Ellen Kanoff,	)	/s/ Mary Ellen Kanoff
	 	 	 
	a Category A Manager:	)	 
	 	 	 
	acting by Christophe Fender,	)	/s/ Christophe Fender
	 	 	 
	a Category B Manager:	)	 
	 	 	 
	s	 	 
	 	 	 
	EXECUTED and delivered by )	 	 
	 	 	 
	Concrete Pumping Holdings)	 	 
	 	 	 
	Acquisition Corp.	)	 
	 	 	 
	 	)	 
	 	 	 
	acting by __________________,	)	/s/ Howard Morgan
	 	 	 
	a duly authorised signatory:	)	 
	 	 	 
	s

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