Document:

NONE
OF THE SECURITIES REPRESENTED HEREBY, NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE EXERCISABLE, HAVE BEEN REGISTERED UNDER
THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE “1933 ACT”), OR ANY U.S. STATE SECURITIES LAWS, AND, UNLESS
SO REGISTERED, MAY NOT BE OFFERED OR SOLD, DIRECTLY OR INDIRECTLY, IN THE UNITED STATES (AS DEFINED HEREIN) OR TO A U.S. PERSON
(AS DEFINED HEREIN) EXCEPT IN ACCORDANCE WITH THE PROVISIONS OF REGULATION S UNDER THE 1933 ACT, PURSUANT TO AN EFFECTIVE REGISTRATION
STATEMENT UNDER THE 1933 ACT, OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION
REQUIREMENTS OF THE 1933 ACT AND IN EACH CASE ONLY IN ACCORDANCE WITH APPLICABLE STATE AND FOREIGN SECURITIES LAWS. “UNITED
STATES” AND “U.S. PERSON” ARE AS DEFINED BY REGULATION S UNDER THE 1933 ACT.

 

WARRANT
CERTIFICATE

 

bbooth,
inc.

 

THESE
WARRANTS WILL EXPIRE AND BECOME NULL AND VOID AT THE TIME OF EXPIRY (AS DEFINED HEREIN).

 

	Warrant
    Certificate No.: OS-2016-12-30	Number
    of Warrants: 2,429,530

 

This
is to certify that, for value received, OCEANSIDE STRATEGIES INC. of 10 Market Street, #688, Camana Bay, Cayman Islands KY1-9006
and at info@oceansidestrategies.com, (the “Holder”), is
the registered holder of TWO MILLION FOUR HUNDRED TWENTY NINE THOUSAND FIVE HUNDRED THIRTY (2,429,530) share purchase warrants
(each, a “Warrant”) of bBOOTH, INC. (the “Company”).
Each Warrant will entitle the Holder, upon and subject to the terms and conditions attached to this certificate or any replacement
certificate (in either case the “Warrant Certificate”) as Appendix “A” (the “Terms and
Conditions”), to acquire from the Company one fully paid and non-assessable share of common stock in the capital of
the Company (each, a “Warrant Share”) at a price of $0.08 per Share at any time prior to 5:00 p.m. (Pacific
time) on December 29, 2019 (the “Time of Expiry”).

 

The
Warrants are issued subject to the Terms and Conditions, and the Holder may exercise the right to purchase Warrant Shares only
in accordance with the Terms and Conditions.

 

Nothing
contained herein or in the Terms and Conditions will confer any right upon the Holder, or any other Person (as defined in the
Terms and Conditions), to subscribe for or purchase any Warrant Shares referenced herein at any time subsequent to the Time of
Expiry, and, from and after such time, the Warrants and all rights under this Warrant Certificate will be void and of no value.

 

IN
WITNESS WHEREOF the Company has caused this Warrant Certificate to be executed this 30th day of December, 2016

 

	bBOOTH, INC.	 
	 	 	 
	Per:	 	 
	 	Authorized
    Signatory	 

 

    	 	 	 

     

    

 

APPENDIX
“A”

 

TERMS
AND CONDITIONS

 

	1.	Interpretation
	 	 
	1.1	Definitions

 

In
these Terms and Conditions, unless there is something in the subject matter or context inconsistent therewith:

 

	 	(a)	“Business
    Day” means any day of the year other than Saturday, Sunday or any day on which banks are required or authorized
    to close in the State of California;
	 	 	 
	 	(b)	“Company”
    means bBooth, Inc., until a successor corporation will have become such as a result of a Reorganization, and, thereafter,
    “Company” will mean such successor corporation;
	 	 	 
	 	(c)	“Exchange”
    means the OTCQB Market of the OTC Markets Group, or such other stock exchange or quotation system on which the Shares may
    be principally traded or quoted at the applicable time;
	 	 	 
	 	(d)	“Exercise
    Price” means $0.08 per Warrant Share, subject to adjustment as provided in Section 4.7;
	 	 	 
	 	(e)	“Exercise
    Date” has the meaning given to such term in Section 4.2(a);
	 	 	 
	 	(f)	“Holder”
    means the holder of the Warrants; 
	 	 	 
	 	(g)	“Issue
    Date” means December 30, 2016;
	 	 	 
	 	(h)	“Person”
    means a natural person, corporation, limited liability corporation, unlimited liability corporation, joint stock corporation,
    partnership, limited partnership, limited liability partnership, trust, trustee, any unincorporated organization, joint venture
    or any other entity;
	 	 	 
	 	(i)	“Reorganization”
    has the meaning given to such term in Section 4.7(a)(ii);
	 	 	 
	 	(j)	“Shares”
    means the shares of common stock in the capital of the Company as constituted at the date hereof and any Shares resulting
    from any subdivision or consolidation of the Shares;
	 	 	 
	 	(k)	“Subscription
    Form” has the meaning given to such term in Section 4.1(a);
	 	 	 
	 	(l)	“Time
    of Expiry” means 5:00 pm (Pacific Time) on December 29, 2019;
	 	 	 
	 	(m)	“VWAP”
    means either: (i) if the Shares are then listed or quoted on the Exchange, the volume weighted average price per Share of
    the Shares on the Exchange, or (ii) if the Shares are not then listed or quoted on the Exchange, the fair market value per
    Share as determined by: (A) an independent appraiser selected in good faith by the Holder and the Company or (B) as otherwise
    may be mutually agreed upon by the Holder and the Company;

 

    	 	A-2	 

     

    

 

	 	(n)	“Warrant
    Certificate” means the Warrant Certificate attached to these Terms and Conditions;
	 	 	 
	 	(o)	“Warrants”
    means the share purchase warrants of the Company represented by the Warrant Certificate; and
	 	 	 
	 	(p)	“Warrant
    Shares” means the Shares issuable upon exercise of the Warrants.

 

	1.2	Gender

 

Words
importing the singular number include the plural and vice versa, and words importing the masculine gender include the feminine
and neuter genders.

 

	1.3	Interpretation
    not affected by Headings

 

The
division of these Terms and Conditions into sections and the insertion of headings are for convenience of reference only and will
not affect the construction or interpretation thereof.

 

	1.4	Applicable
    Law

 

The
Warrants will be exclusively construed in accordance with the laws of the State of Nevada. The Warrant Certificate and these Terms
and Conditions are governed by the laws of the State of California and the federal laws of the United States applicable therein.

 

	1.5	Currency

 

Unless
otherwise provided, all dollar amounts referred to in the Warrant Certificate and these Terms and Conditions are in lawful money
of the United States of America.

 

	2.	Issue
    of Warrants
	 	 
	2.1	Additional
    Warrants

 

The
Company may at any time and from time to time issue additional warrants or grant options or similar rights to purchase Shares.

 

	2.2	Warrants
    to Rank Pari Passu

 

All
Warrants and additional warrants, options or similar rights to purchase Shares from time to time issued or granted by the Company
will rank pari passu, whatever may be the actual dates of issue or grant thereof, or of the dates of the certificates by
which they are evidenced.

 

	2.3	Replacement
    of Lost or Damaged Warrant Certificate

 

	 	(a)	If
    the Warrant Certificate becomes mutilated, lost, destroyed or stolen, the Company, at its discretion, may issue and deliver
    a new Warrant Certificate of like date and tenor as the one mutilated, lost, destroyed or stolen, in exchange for, in place
    of, and upon cancellation of, such mutilated Warrant Certificate, or in lieu of, and in substitution for, such lost, destroyed
    or stolen Warrant Certificate.

 

    	 	A-3	 

     

    

 

	 	(b)	The
    applicant for the issue of a new Warrant Certificate pursuant hereto will bear the cost of such issue and, in case of loss,
    destruction or theft, will furnish to the Company such evidence of ownership and of loss, destruction or theft of the Warrant
    Certificate so lost, destroyed or stolen as will be satisfactory to the Company in its discretion. Such applicant may also
    be required to furnish indemnity in amount and form satisfactory to the Company in its discretion, and will pay the reasonable
    charges of the Company in connection therewith.

 

	2.4	Holder
    Not a Shareholder

 

The
holding of the Warrant Certificate will not constitute the Holder a shareholder of the Company, nor entitle it to any right or
interest in respect thereof except as expressly provided in the Warrant Certificate.

 

	3.	Notice
	 	 
	3.1	Notice
    to Holders

 

Any
notice required or permitted to be given to the Holder will be in writing and may be given by prepaid registered post, electronic
facsimile transmission or other means of electronic communication capable of producing a printed copy to the address of the Holder
appearing on the Warrant Certificate or to such other address as the Holder may specify by notice in writing to the Company to
the address set forth in Section 3.2, and any such notice will be deemed to have been given and received by the Holder: (i) if
mailed, on the third Business Day following the mailing thereof; (ii) if by facsimile or other electronic communication, on successful
transmission; or (iii) if delivered, on delivery, but if at the time of mailing, or between the time of mailing and the third
Business Day thereafter, there is a strike, lockout or other labour disturbance affecting postal service, then the notice will
not be effectively given until actually delivered.

 

	3.2	Notice
    to the Company

 

Any
notice required or permitted to be given to the Company will be in writing and may be given by prepaid registered post, electronic
facsimile transmission or other means of electronic communication capable of producing a printed copy to the address of the Company
set forth below or such other address as the Company may specify by notice in writing to the Holder to the address of the Holder
appearing on the Warrant Certificate, and any such notice will be deemed to have been given and received by the Company: (i) if
mailed, on the third Business Day following the mailing thereof; (ii) if by facsimile or other electronic communication, on successful
transmission; or (iii) if delivered, on delivery, but if at the time of mailing, or between the time of mailing and the third
Business Day thereafter, there is a strike, lockout or other labour disturbance affecting postal service, then the notice will
not be effectively given until actually delivered.

 

Notices
to the Company will be delivered to:

 

bBooth,
Inc.

346 S. Hauser Blvd, Suite 210

Los Angeles, CA 90036

Attn:Jimmy Geiskopf

Email:jimmy@bbooth.com

 

    	 	A-4	 

     

    

 

	4.	Exercise
    of Warrants
	 	 
	4.1	Method
    of Exercise of Warrants

 

The
Holder may exercise its right to purchase the Warrant Shares at the Exercise Price at any time until the Time of Expiry by:

 

	 	(a)	providing
    the Company with the Warrant Certificate and a completed and executed subscription form, in the form attached as Appendix
    “B” hereto (the “Subscription Form”), for the number of Warrant Shares which the Holder wishes
    to purchase;
	 	 	 
	 	(b)	surrendering
    the Warrant Certificate and the Subscription Form to the Company at the address set forth in Section 3.2; and
	 	 	 
	 	(c)	either:
    (i) paying the appropriate Exercise Price for the number of Warrant Shares subscribed for, either by bank draft, certified
    check or money order, payable to the Company, and delivering such payment to the Company at the address set forth in Section
    3.2, or by wire transfer to such account as may be provided by the Company to the Holder upon request, or (ii) indicating
    in the Subscription Form that the Holder intends to exercise the applicable Warrants by cashless exercise as provided for
    in Section 4.3. 

 

	4.2	Effect
    of Exercise of Warrants

 

	 	(a)	On
    the first Business Day following the date the Company receives a duly executed Subscription Form and the Exercise Price for
    the number of Warrant Shares specified in the Subscription Form (the “Exercise Date”), the Warrant Shares
    so subscribed for will be deemed to have been issued and the Person(s) to whom such Warrant Shares have been deemed to be
    issued will be deemed to have become the holder (or holders) of record of such Warrant Shares on such date.
	 	 	 
	 	(b)	As
    promptly as practicable after the Exercise Date and, in any event, within ten (10) Business Days of the Exercise Date, the
    Company will cause to be delivered to the Person in whose name the Warrant Shares so subscribed for are to be registered as
    specified in the Subscription Form, and courier to such Person at its respective address specified in the Subscription Form,
    a certificate for the appropriate number of fully paid and non-assessable Warrant Shares, which will not exceed that number
    which the Holder is entitled to purchase pursuant to the Warrant Certificate surrendered.

 

	4.3	Cashless
    Exercise.

 

If
at any time after the date that is six months following the Issue Date, there is no effective registration statement registering,
or no current prospectus available for, the resale of the Warrant Shares by the Holder, then the Warrants may be exercised, in
whole or in part, by means of a “cashless exercise” pursuant to the following formula:

 

X
= Y(A-B)

A

 

	where:
    	X
    = 	the
    number of Warrant Shares to be issued to the Holder upon the cashless exercise;
	 	 	 
	 	Y
    = 	the
    number of Warrants to be exercised by way of cashless exercise;
	 	 	 
	 	A
    = 	the
    VWAP per Share for the ten (10) Business Days immediately preceding the Exercise Date; and
	 	 	 
	 	B
    = 	the
    Exercise Price at the time the Warrants are to be exercised.

 

    	 	A-5	 

     

    

 

	4.4	Subscription
    for Less Than Entitlement

 

The
Holder may subscribe for and purchase a number of Warrant Shares less than the number which the Holder is entitled to purchase
pursuant to the surrendered Warrant Certificate. In the event of any purchase of a number of Warrant Shares less than the number
which can be purchased pursuant to the Warrant Certificate, the Holder, upon exercise thereof, will be entitled to receive a new
Warrant Certificate in respect of the balance of the Warrant Shares which the Holder was entitled to purchase pursuant to the
surrendered Warrant Certificate and which were not then purchased.

 

	4.5	Warrants
    for Fractions of Warrant Shares

 

If,
on exercise or partial exercise of any Warrant, the Holder is entitled to receive a fraction of a Warrant Share, such Warrant
may be exercised in respect of such fraction only in combination with another Warrant or Warrants which, in the aggregate, entitle
the Holder to receive a whole Warrant Share.

 

	4.6	Expiration
    of Warrants

 

The
Holder agrees that, after the Time of Expiry, all rights under the Warrant Certificate and these Terms and Conditions will wholly
cease and terminate and the Warrants will be void and of no further force and effect.

 

	4.7	Adjustment
    of Exercise Price

 

	 	(a)	The
    Exercise Price and the number of Warrant Shares deliverable upon the exercise of the Warrants will be subject to adjustment
    in the event of and in the manner following:

 

	 	(i)	if
    and whenever the Shares at any time outstanding are subdivided into a greater, or consolidated into a lesser, number of Shares,
    the Exercise Price will be decreased or increased proportionately as the case may be. Upon any such subdivision or consolidation,
    the number of Warrant Shares deliverable upon the exercise of the Warrants will be increased or decreased proportionately
    as the case may be; and
	 	 	 
	 	(ii)	in
    the case of any capital reorganization or of any reclassification of the capital of the Company, or in the case of the consolidation,
    merger or amalgamation of the Company with or into any other company (in any case, a “Reorganization”),
    each Warrant will, after such Reorganization, be deemed to confer the right to purchase the number of Warrant Shares or other
    securities of the Company (or of the company resulting from such Reorganization) which the Holder would have been entitled
    to upon the Reorganization if the Holder had been a shareholder of the Company at the time of such Reorganization.

 

	 	(b)	In
    the case of any Reorganization, appropriate adjustments will be made in the application of the provisions of this Section
    4.7 relating to the rights and interest thereafter of the Holder so that the provisions of this Section 4.7 will be made applicable
    as nearly as reasonably possible to any Warrant Shares or other securities deliverable after the Reorganization on the exercise
    of the Warrants.

 

    	 	A-6	 

     

    

 

	 	(c)	The
    subdivision or consolidation of Shares at any time outstanding into a greater or lesser number of Shares (whether with or
    without par value) will not be deemed to be a Reorganization for the purposes of this Section 4.7.
	 	 	 
	 	(d)	The
    adjustments provided for in this Section 4.7 are cumulative and will become effective immediately after the applicable record
    date or, if no record date is fixed, the effective date of the event which results in such adjustments.

 

	4.8	Determination
    of Adjustments

 

If
any questions will at any time arise with respect to the Exercise Price or any adjustment provided for in Section 4.7, such questions
will be conclusively determined by the independent firm of accountants duly appointed as auditors of the Company, or, if they
decline to so act, by any other firm of certified public accountants registered with the Public Company Accounting Oversight Board
that the Company may designate and who will have access to all appropriate records, and such determination will be binding upon
the Company and the Holder.

 

	5.	Modification
    of Terms and Conditions for Certain Purposes

 

From
time to time, the Company may, subject to the provisions herein, modify the Terms and Conditions for the purpose of correction
or rectification of any ambiguities, defective provisions, errors or omissions.

 

	6.	Time
    of Essence

 

Time
will be of the essence hereof.

 

	7.	Successors

 

This
Warrant Certificate will enure to the benefit of, and will be binding upon, the Company and its successors.

 

	8.	WARRANTS
    TRANSFERABLE

 

The
Warrants, and any rights attached to any of them, are transferable.

 

    	 	A-7	 

     

    

 

APPENDIX
B

 

SUBSCRIPTION
FORM

 

	TO:	bBooth,
    Inc.
	 	346
    S. Hauser Blvd, Suite 210
	 	Los
    Angeles, CA 90036

 

The
undersigned holder of the within Warrant Certificate (the “Holder”) hereby subscribes for:

 

	 	(a)	__________________ shares
    of common stock (each, a “Share”) in the capital of bBooth, Inc. (the “Company) at an exercise
    price of $0.08 per Share, in which case this Subscription Form is accompanied by a certified check or bank draft payable to
    the Company, or the Holder has arranged for a wire transfer to such account as has been directed by the Company, for the whole
    amount of the purchase price of the Shares; or
	 	 	 
	 	(b)	such
    number of Shares as is determined in accordance with the cashless exercise mechanism set out in Section 4.3 of the Terms and
    Conditions to which this Appendix B is attached (the “Terms and Conditions”),

 

in
either case in accordance with the Terms and Conditions.

 

The
Holder represents and Warrants that the Holder is an accredited investor (as such term is defined in Regulation D promulgated
under the Securities Act of 1933, as amended).

 

The
Holder hereby directs that the Shares hereby subscribed for be registered and delivered as follows:

 

	NAME(S)
    IN FULL	 	ADDRESS(ES)	 	NUMBER
    OF SHARES
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	TOTAL:	 	 

 

(Please
print the full name in which share certificates are to be issued, stating whether Mr., Mrs. or Miss is applicable).

 

DATED
this _____ day of ______________________, 20___.

 

	In
    the presence of:	 
	 	 
	 	 
	Signature
    of Holder	 
	 	 
	 	 
	Name
    of Holder (please print)	 
	 	 
	 	 
	 	 
	 	 
	Address
    of Holder	 

 

    	 	A-8	 

     

    

 

LEGENDS

 

The
certificates representing the Shares acquired on the exercise of the Warrants will bear the following legends, if and as applicable,
and all such other legends as may be required at the time of exercise under applicable securities laws:

 

NONE
OF THE SECURITIES REPRESENTED HEREBY, NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE EXERCISABLE, HAVE BEEN REGISTERED UNDER
THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE “1933 ACT”), OR ANY U.S. STATE SECURITIES LAWS, AND, UNLESS
SO REGISTERED, MAY NOT BE OFFERED OR SOLD, DIRECTLY OR INDIRECTLY, IN THE UNITED STATES (AS DEFINED HEREIN) OR TO A U.S. PERSON
(AS DEFINED HEREIN) EXCEPT IN ACCORDANCE WITH THE PROVISIONS OF REGULATION S UNDER THE 1933 ACT, PURSUANT TO AN EFFECTIVE REGISTRATION
STATEMENT UNDER THE 1933 ACT, OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION
REQUIREMENTS OF THE 1933 ACT AND IN EACH CASE ONLY IN ACCORDANCE WITH APPLICABLE STATE AND FOREIGN SECURITIES LAWS. “UNITED
STATES” AND “U.S. PERSON” ARE AS DEFINED BY REGULATION S UNDER THE 1933 ACT.

 

INSTRUCTIONS
FOR SUBSCRIPTION FORM

 

The
signature to the Subscription Form must correspond in every particular with the name written upon the face of the Warrant Certificate
without alteration or enlargement or any change whatever. If there is more than one subscriber, all must sign.

 

In
the case of Person(s) signing by agent or attorney or by personal representative(s), the authority of such agent, attorney or
representative(s) to sign must be proven to the satisfaction of the Company.

 

If
the Warrant Certificate and the Subscription Form are being sent by mail, they must be sent by registered mail.EX-4.2

 Exhibit 4.2 

SUPPLEMENTAL INDENTURE NO. 1 

SUPPLEMENTAL INDENTURE NO. 1 (this “Supplemental Indenture”) is entered into as of October 12, 2016, among Valente
Equipment Leasing Corp., a New York corporation, USC-Jenna, LLC, a Delaware limited liability company, and USC-Kings, LLC, a Delaware limited liability company (collectively, the “New Guarantors”), U.S. Concrete, Inc., a Delaware
corporation (together with its successors and assigns, the “Issuer”), and U.S. Bank National Association, as trustee under the Indenture referred to below (the “Trustee”). 

W I T N E S S E T H : 
 WHEREAS
the Issuer, the existing guarantors (the “Existing Guarantors”) and the Trustee are parties to that certain Indenture (as such has been or may be amended or supplemented from time to time, the “Indenture”) dated as
of June 7, 2016, providing for the issuance of the Issuer’s 6.375% Senior Notes due 2024 (the “Notes”); 

WHEREAS Section 4.11 of the Indenture provides that, subject to certain exceptions that are not applicable to the New Guarantors, each
Restricted Subsidiary that enters into a Guarantee of any Indebtedness of the Issuer shall execute and deliver to the Trustee a Guarantee Agreement pursuant to which such Restricted Subsidiary will Guarantee payment of the Notes on a senior basis on
the same terms and conditions as those set forth in Article 10 of the Indenture and applicable to the other Subsidiary Guarantors; 

WHEREAS pursuant to Section 9.01 of the Indenture, the Trustee, the Issuer and the New Guarantors are authorized to execute and deliver
this Supplemental Indenture; 
 NOW THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt
of which is hereby acknowledged, the New Guarantors, the Issuer and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders as follows: 

1. Capitalized Terms. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture. 

2. Agreement to be Bound. Each of the New Guarantors hereby becomes a party to the Indenture as a Subsidiary Guarantor and as such will
have all of the rights and be subject to all of the obligations and agreements of a Subsidiary Guarantor under the Indenture. Each of the New Guarantors agrees to be bound by all of the provisions of the Indenture applicable to a Subsidiary
Guarantor and to perform all of the obligations and agreements of a Subsidiary Guarantor under the Indenture. 
 3. Guarantee.
Pursuant to and subject to Article 10 of the Indenture, each of the New Guarantors, on a joint and several basis with each other New Guarantor and each Existing Guarantor, hereby Guarantees payment of the Notes on a senior basis on the same terms
and conditions as those set forth in Article 10 of the Indenture and, in furtherance of the foregoing, unconditionally and irrevocably guarantees to each Holder and the Trustee the Guaranteed Obligations. 

4. Ratification of Indenture; Supplemental Indentures Part of Indenture. Except as expressly supplemented hereby, the Indenture is in
all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect. This Supplemental Indenture shall form a part of the Indenture for all purposes, and every Note heretofore or hereafter
authenticated and delivered shall be entitled to the benefits hereof. 

  
 1 

 5. Governing Law. THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY, AND CONSTRUED IN
ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK. 
 6. Trustee Makes No Representation. The Trustee makes no representation as
to the validity or sufficiency of this Supplemental Indenture. The Trustee shall not be responsible in any manner whatsoever for or with respect to any of the recitals or statements contained herein, all of which recitals or statements are made
solely by the Issuer and the New Guarantors, and the Trustee makes no representation with respect to any such matters. 
 7.
Counterparts. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. It is the express intent of the parties to be bound by the
exchange of signatures on this Supplemental Indenture via telecopy or other form of electronic transmission. 
 8. Effect of
Headings. The section headings herein are for convenience only and shall not effect the construction thereof. 
 [SIGNATURE PAGE TO
FOLLOW] 

  
 2 

 IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly
executed as of the date first above written. 
  

					
	NEW GUARANTORS:
	
	VALENTE EQUIPMENT LEASING CORP.
		
	By:	 	 /s/ Paul M. Jolas

		 	Name:	 	Paul M. Jolas
		 	Title:	 	Vice President
		
		 	 Address:
  

331 North Main Street
 Euless, Texas 76039

Attn: General Counsel
 Telecopy: (817) 835-4105

	
	USC-JENNA, LLC
		
	By:	 	 /s/ Paul M. Jolas

		 	Name:	 	Paul M. Jolas
		 	Title:	 	Vice President and Secretary
		
		 	 Address:
  

331 North Main Street
 Euless, Texas 76039

Attn: General Counsel
 Telecopy: (817) 835-4105

 [Signature Page to Supplemental Indenture] 

 
					
	USC-KINGS, LLC
		
	By:	 	 /s/ William J. Sandbrook

		 	Name:	 	William J. Sandbrook
		 	Title:	 	President
		
		 	 Address:
  

331 North Main Street
 Euless, Texas 76039

Attn: General Counsel
 Telecopy: (817) 835-4105

 [Signature Page to Supplemental Indenture] 

 
					
	ISSUER:
	
	U.S. CONCRETE, INC.
		
	By:	 	 /s/ Paul M. Jolas

		 	Name:	 	Paul M. Jolas
		 	Title:	 	 Senior Vice President, General
 Counsel and
Corporate Secretary

 [Signature Page to Supplemental Indenture] 

 
					
	TRUSTEE:
	
	 U.S. BANK NATIONAL ASSOCIATION,

as Trustee

		
	By:	 	 /s/ Wally Jones

		 	Name:	 	Wally Jones
		 	Title:	 	Vice President

 [Signature Page to Supplemental Indenture]

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