Exhibit 10.17

WARRANT AGREEMENT

This Agreement (this Agreement) is
made as of May 30, 2007 between Shermen WSC Acquisition Corp., a Delaware corporation, with offices at c/o The Shermen Group, 1251 Avenue of the Americas, Suite 900, New York, New York 10020 (Company), and Continental Stock
Transfer & Trust Company, a New York corporation, with offices at 17 Battery Place, New York, New York 10004 (Warrant Agent).

WHEREAS, the Company is engaged in a public offering (Public Offering) of Units (Units) and, in connection therewith, has determined to issue and deliver up to
46,000,000 warrants (the IPO Warrants) to the public investors;

WHEREAS, in connection with the Public
Offering the Company has determined to issue and deliver to CIBC World Markets Corp. and CRT Capital Group LLC an option to acquire 700,000 Units in the aggegate, which will include 1,400,000 warrants (the Underwriters
Warrants and, together with the IPO Warrants, the Warrants); and

WHEREAS, the Company has filed
with the Securities and Exchange Commission a Registration Statement, No. 333-133869 on Form S-1 (Registration Statement) for the registration, under the Securities Act of 1933, as amended (Act), of, among
other securities, the Warrants and the Common Stock issuable upon exercise of the Warrants; and

WHEREAS, the Company desires
the Warrant Agent to act on behalf of the Company, and the Warrant Agent is willing to so act, in connection with the issuance, registration, transfer, exchange, redemption and exercise of the Warrants; and

WHEREAS, the Company desires to provide for the form and provisions of the Warrants, the terms upon which they shall be issued and
exercised, and the respective rights, limitation of rights, and immunities of the Company, the Warrant Agent, and the holders of the Warrants; and

WHEREAS, all acts and things have been done and performed which are necessary to make the Warrants, when executed on behalf of the Company and countersigned by or on behalf of the Warrant Agent, as
provided herein, the valid, binding and legal obligations of the Company, and to authorize the execution and delivery of this Agreement.

NOW, THEREFORE, in consideration of the mutual agreements herein contained, the parties hereto agree as follows:

1. Appointment of Warrant Agent. The Company hereby appoints the Warrant Agent to act as agent for the Company for the Warrants, and the Warrant Agent hereby accepts such appointment and agrees to
perform the same in accordance with the terms and conditions set forth in this Agreement.

2. Warrants.

2.1. Form of Warrant. Each Warrant shall be issued in registered form only, shall be in substantially the form of Exhibit A hereto
(the Warrant Certificate), the provisions of which are incorporated herein and shall be signed by, or bear the facsimile signature of, the



---

Chairman of the Board, the Chief Executive Officer, the Chief Operating Officer or President and Secretary or Assistant Secretary of the Company and shall bear a facsimile of the Companys
seal. In the event the person whose facsimile signature has been placed upon any Warrant Certificate shall have ceased to serve in the capacity in which such person signed the Warrant Certificate before such Warrant Certificate is issued, it may be
issued with the same effect as if he or she had not ceased to be such at the date of issuance.

2.2. Effect of
Countersignature. The Warrant Certificate will be executed on behalf of the Company as provided above and delivered to the Warrant Agent. The Warrant Certificates will then be countersigned by the Warrant Agent. Unless and until countersigned by
the Warrant Agent pursuant to this Agreement, a Warrant Certificate shall be invalid and of no effect and may not be exercised by the holder thereof.

2.3. Registration.

2.3.1. Warrant Register. The Warrant Agent
shall maintain books (Warrant Register), for the registration of original issuance and the registration of transfer of the Warrants. Upon the initial issuance of the Warrants, the Warrant Agent shall issue and register the
Warrants in the names of the respective holders thereof in such denominations and otherwise in accordance with instructions delivered to the Warrant Agent by the Company.

2.3.2. Registered Holder. Prior to due presentment for registration of transfer of any Warrant Certificate, the Company and the Warrant Agent may deem and treat the person in whose name such
Warrant Certificate shall be registered upon the Warrant Register (registered holder), as the absolute owner of such Warrant Certificate and of each Warrant represented thereby (notwithstanding any notation of ownership or other
writing on the Warrant Certificate made by anyone other than the Company or the Warrant Agent), for the purpose of any exercise thereof, and for all other purposes, and neither the Company nor the Warrant Agent shall be affected by any notice to the
contrary.

2.4. Detachability of Warrants. The securities comprising the Units will begin separate trading as promptly
as practicable following the consummation of the Public Offering, but in no event later than 65 days following the consummation of the Public Offering. In no event will separating trading of the securities comprising the Units commence until the
Company files a Current Report on Form 8-K which includes an audited balance sheet reflecting the receipt by the Company of the gross proceeds of the Public Offering including the proceeds received by the Company from the exercise by CIBC World
Markets Corp. and CRT Capital Group LLC of their over-allotment option, if such over-allotment option is exercised prior to the filing of the Form 8-K.

3. Terms and Exercise of Warrants.

3.1. Warrant Price. Each Warrant
Certificate shall, when countersigned by the Warrant Agent, entitle the registered holder thereof, subject to the provisions of such Warrant Certificate and of this Agreement, to purchase from the Company the number of shares of Common Stock stated
therein, at the price of $5.00 per whole share and in the case of the Underwriters Warrants, $6.25 per whole share, subject to the adjustments provided in Section 4



---

hereof and in the last sentence of this Section 3.1. The term Warrant Price as used in this Agreement refers to the price per share at which Common Stock may be purchased
at the time a Warrant is exercised. The Company in its sole discretion may lower the Warrant Price at any time prior to the Expiration Date.

3.2. Duration of Warrants. A Warrant may be exercised only during the period (Exercise Period) commencing on the later of (a) the consummation of an acquisition by the
Company through a merger, capital stock exchange, asset acquisition, stock purchase or other similar business combination, of an operating business (Business Combination) (as described more fully in the Companys Registration
Statement) and (b) May 24, 2008 and terminating at 5:00 p.m., New York City time on the earlier to occur of (i) May 24, 2011 and (ii) the date fixed for redemption of the Warrants as provided in Section 6 of this
Agreement (Expiration Date). Except with respect to the right to receive the Redemption Price (as set forth in Section 6 hereunder), each Warrant not exercised on or before the Expiration Date shall become void, and all
rights thereunder and all rights in respect thereof under this Agreement shall cease at the close of business on the Expiration Date. The Company in its sole discretion may extend the duration of the Warrants by delaying the Expiration Date.

3.3. Exercise of Warrants.

3.3.1. Payment. Subject to the provisions of the Warrant Certificate and this Agreement, a Warrant Certificate, when countersigned by the Warrant Agent, may be exercised by the registered holder
thereof by surrendering it, at the office of the Warrant Agent, or at the office of its successor as Warrant Agent, in the Borough of Manhattan, City and State of New York, with the subscription form, as set forth in the Warrant Certificate, duly
executed, and by paying in full, in lawful money of the United States, in cash, good certified check or good bank draft payable to the order of the Company (or as otherwise agreed to by the Company), the Warrant Price for each full share of Common
Stock as to which the Warrant is exercised and any and all applicable taxes due in connection with the exercise of the Warrant, the exchange of the Warrant for the Common Stock, and the issuance of the Common Stock.

3.3.2. Issuance of Certificates. As soon as practicable after the exercise of any Warrant and the clearance of the funds in
payment of the Warrant Price, the Company shall issue to the registered holder of such Warrant a certificate or certificates for the number of full shares of Common Stock to which he, she or it is entitled, registered in such name or names as may be
directed by him, her or it, and if such Warrant shall not have been exercised in full, a new countersigned Warrant Certificate for the number of shares as to which such Warrant shall not have been exercised. Notwithstanding the foregoing, the
Company shall not be obligated to deliver any securities pursuant to the exercise of a Warrant and shall have no obligation to settle the Warrant exercise unless a registration statement under the Act with respect to the Common Stock is effective
subject to the Companys satisfying its obligations under Section 7.4 to use its best efforts. In the event that a registration statement with respect to the Common Stock underlying a Warrant is not effective under the Act, the holder of
such Warrant shall not be entitled to exercise such Warrant and such Warrant may have no value and expire worthless. In no event will the Company be required to net cash settle the Warrant exercise. Warrants may not be exercised by, or securities
issued to, any registered holder in any state in which such exercise would be unlawful.



---

3.3.3. Valid Issuance. All shares of Common Stock issued upon the proper exercise of
a Warrant in conformity with this Agreement shall be validly issued, fully paid and nonassessable.

3.3.4. Date of
Issuance. Each person in whose name any such certificate for shares of Common Stock is issued shall for all purposes be deemed to have become the holder of record of such shares on the date on which the Warrant was surrendered and payment of the
Warrant Price was made, irrespective of the date of delivery of such certificate, except that, if the date of such surrender and payment is a date when the stock transfer books of the Company are closed, such person shall be deemed to have become
the holder of such shares at the close of business on the next succeeding date on which the stock transfer books are open.

4.
Adjustments.

4.1. Stock Dividends - Split-Ups. If, after the date hereof, and subject to the provisions of
Section 4.6 below, the number of outstanding shares of Common Stock is increased by a stock dividend payable in shares of Common Stock, or by a split-up of shares of Common Stock, or other similar event, then, on the effective date of such
stock dividend, split-up or similar event, the number of shares of Common Stock issuable on exercise of each Warrant shall be increased in proportion to such increase in outstanding shares of Common Stock.

4.2. Aggregation of Shares. If, after the date hereof, and subject to the provisions of Section 4.6, the number of
outstanding shares of Common Stock is decreased by a consolidation, combination, reverse stock split or reclassification of shares of Common Stock or other similar event, then, on the effective date of such consolidation, combination, reverse stock
split, reclassification or similar event, the number of shares of Common Stock issuable on exercise of each Warrant shall be decreased in proportion to such decrease in outstanding shares of Common Stock.

4.3. Adjustments in Exercise Price. Whenever the number of shares of Common Stock purchasable upon the exercise of the Warrants is
adjusted, as provided in Section 4.1 or 4.2 above, the Warrant Price shall be adjusted (to the nearest cent) by multiplying such Warrant Price immediately prior to such adjustment by a fraction (x) the numerator of which shall be the
number of shares of Common Stock purchasable upon the exercise of the Warrants immediately prior to such adjustment, and (y) the denominator of which shall be the number of shares of Common Stock so purchasable immediately thereafter.

4.4. Replacement of Securities upon Reorganization, etc. In case of any reclassification or reorganization of the
outstanding shares of Common Stock (other than a change covered by Section 4.1 or 4.2 hereof or that solely affects the par value of such shares of Common Stock), or in the case of any merger or consolidation of the Company with or into another
corporation (other than a consolidation or merger in which the Company is the continuing corporation and that does not result in any reclassification or reorganization of the outstanding shares of Common Stock), or in the case of any sale or
conveyance to another corporation or entity of the assets or other property of the Company as an entirety or substantially as an entirety in connection with which the Company is dissolved, the Warrant holders shall thereafter have the right to
purchase and receive, upon the basis and upon the terms



---

and conditions specified in the Warrants and in lieu of the shares of Common Stock of the Company immediately theretofore purchasable and receivable upon the exercise of the rights represented
thereby, the kind and amount of shares of stock or other securities or property (including cash) receivable upon such reclassification, reorganization, merger or consolidation, or upon a dissolution following any such sale or transfer, that the
Warrant holder would have received if such Warrant holder had exercised his, her or its Warrant(s) immediately prior to such event; and if any reclassification also results in a change in shares of Common Stock covered by Section 4.1 or 4.2,
then such adjustment shall be made pursuant to Sections 4.1, 4.2 and 4.3 and this Section 4.4. The provisions of this Section 4.4 shall similarly apply to successive reclassifications, reorganizations, mergers or consolidations, sales or
other transfers.

4.5. Notices of Changes in Warrant. Upon every adjustment of the Warrant Price or the number of
shares issuable upon exercise of a Warrant, the Company shall give written notice thereof to the Warrant Agent, which notice shall state the Warrant Price resulting from such adjustment and the increase or decrease, if any, in the number of shares
purchasable at such price upon the exercise of a Warrant, setting forth in reasonable detail the method of calculation and the facts upon which such calculation is based. Upon the occurrence of any event specified in Section 4.1, 4.2, 4.3 or
4.4, then, in any such event, the Company shall give written notice to the Warrant holder, at the last address set forth for such holder in the Warrant Register, of the record date or the effective date of the event. Failure to give such notice, or
any defect therein, shall not affect the legality or validity of such event.

4.6. No Fractional Shares.
Notwithstanding any provision contained in this Agreement to the contrary, the Company shall not issue fractional shares upon exercise of Warrants. If, by reason of any adjustment made pursuant to this Section 4, the holder of any Warrant would
be entitled, upon the exercise of such Warrant, to receive a fractional interest in a share, the Company shall, upon such exercise, round up to the nearest whole number the number of the shares of Common Stock to be issued to the Warrant holder.

4.7. Form of Warrant. The form of Warrant Certificate need not be changed because of any adjustment pursuant to this
Section 4, and Warrant Certificates issued after such adjustment may state the same Warrant Price and the same number of shares as are stated in the Warrant Certificates initially issued pursuant to this Agreement. However, the Company may at
any time in its sole discretion make any change in the form of Warrant Certificate that the Company may deem appropriate and that does not affect the substance thereof, and any Warrant Certificate thereafter issued or countersigned, whether in
exchange or substitution for an outstanding Warrant Certificate or otherwise, may be in the form as so changed.

5.
Transfer and Exchange of Warrants.

5.1. Registration of Transfer. The Warrant Agent shall register the transfer,
from time to time, of any outstanding Warrant Certificate upon the Warrant Register, upon surrender of such Warrant Certificate for transfer, properly endorsed with signatures properly guaranteed and accompanied by appropriate instructions for
transfer. Upon any such transfer, a new Warrant Certificate representing an equal aggregate number of Warrants shall be issued and the old Warrant Certificate shall be cancelled by the Warrant Agent. The Warrant Certificates so



---

cancelled shall be delivered by the Warrant Agent to the Company from time to time upon request.

5.2. Procedure for Surrender of Warrants. Warrant Certificates may be surrendered to the Warrant Agent, together with a written request for exchange or transfer, and thereupon the Warrant Agent
shall issue in exchange therefor one or more new Warrant Certificates as requested by the registered holder of the Warrant Certificates so surrendered, representing an equal aggregate number of Warrants; provided, however, that in the event that a
Warrant Certificate surrendered for transfer bears a restrictive legend, the Warrant Agent shall not cancel such Warrant Certificate and issue new Warrant Certificates in exchange therefor until the Warrant Agent has received an opinion of counsel
for the Company stating that such transfer may be made and indicating whether the new Warrant Certificates must also bear a restrictive legend.

5.3. Fractional Warrants. The Warrant Agent shall not be required to effect any registration of transfer or exchange which will result in the issuance of a Warrant Certificate for a fraction of a
Warrant.

5.4. Service Charges. No service charge shall be made for any exchange or registration of transfer of
Warrants.

5.5. Warrant Execution and Countersignature. The Warrant Agent is hereby authorized to countersign and to
deliver, in accordance with the terms of this Agreement, the Warrants required to be issued pursuant to the provisions of this Section 5, and the Company, whenever required by the Warrant Agent, will supply the Warrant Agent with Warrants duly
executed on behalf of the Company for such purpose.

6. Redemption.

6.1. Redemption. Subject to Section 6.4 hereof, not less than all of the outstanding Warrants and Founder Warrants may be
redeemed, at the option of the Company, at any time after they become exercisable and prior to their expiration, at the office of the Warrant Agent, upon the notice referred to in Section 6.2, at the price of $.01 per Warrant or Founder
Warrant, as applicable (Redemption Price), provided that the last sales price of the Common Stock has been at least $8.50 per share, for any twenty (20) trading days within a thirty (30) consecutive trading day period ending on
the third business day prior to the date on which notice of redemption is given.

6.2. Date Fixed for, and Notice of,
Redemption. In the event the Company shall elect to redeem all of the outstanding Warrants and Founder Warrants, the Company shall fix a date for the redemption. Notice of redemption shall be mailed by first class mail, postage prepaid, by the
Company not less than 30 days prior to the date fixed for redemption to the registered holders of the Warrants to be redeemed at their last addresses as they shall appear on the registration books. Any notice mailed in the manner herein provided
shall be conclusively presumed to have been duly given whether or not the registered holder received such notice.

6.3.
Exercise After Notice of Redemption. The Warrants may be exercised in accordance with Section 3 of this Agreement at any time after notice of redemption shall have



---

been given by the Company pursuant to Section 6.2 hereof and prior to the time and date fixed for redemption. On and after the redemption date, the record holders of the Warrants shall have
no further rights except to receive, upon surrender of the Warrants, the Redemption Price.

6.4. Outstanding Warrants
Only. The Company understands that the redemption rights provided for by this Section 6 apply only to outstanding Warrants. To the extent a person holds rights to purchase Warrants, such purchase rights shall not be extinguished by
redemption. However, once such purchase rights are exercised, the Company may redeem the Warrants issued upon such exercise provided that the criteria for redemption are met.

7. Other Provisions Relating to Rights of Holders of Warrants.

7.1. No
Rights as Stockholder. A Warrant does not entitle the registered holder thereof to any of the rights of a stockholder of the Company, including, without limitation, the right to receive dividends, or other distributions, exercise any preemptive
rights to vote or to consent or to receive notice as stockholders in respect of the meetings of stockholders or the election of directors of the Company or any other matter.

7.2. Lost, Stolen, Mutilated, or Destroyed Warrants. If any Warrant Certificate is lost, stolen, mutilated, or destroyed, the Company and the Warrant Agent may on such terms as to indemnity or
otherwise as they may in their discretion impose (which shall, in the case of a mutilated Warrant Certificate, include the surrender thereof), issue a new Warrant Certificate of like denomination, tenor, and date as the Warrant Certificate so lost,
stolen, mutilated, or destroyed. Any such new Warrant Certificate shall constitute a substitute contractual obligation of the Company, whether or not the allegedly lost, stolen, mutilated, or destroyed Warrant Certificate shall be at any time
enforceable by anyone.

7.3. Reservation of Common Stock. The Company shall at all times reserve and keep available a
number of its authorized but unissued shares of Common Stock that will be sufficient to permit the exercise in full of all outstanding Warrants issued pursuant to this Agreement.

7.4. Registration of Common Stock. The Company agrees that prior to the commencement of the Exercise Period, it shall file with
the Securities and Exchange Commission a post-effective amendment to the Registration Statement, or a new registration statement, for the registration, under the Act, of, and it shall take such action as is necessary to qualify for sale, in those
states in which the Warrants were initially offered by the Company, the Common Stock issuable upon exercise of the Warrants. In either case, the Company will use its best efforts to cause the same to become effective and to maintain the
effectiveness of such registration statement until the expiration of the Warrants in accordance with the provisions of this Agreement.

8. Concerning the Warrant Agent and Other Matters.

8.1. Payment of
Taxes. The Company will from time to time promptly pay all taxes and charges that may be imposed upon the Company or the Warrant Agent in respect of the issuance or delivery of shares of Common Stock upon the exercise of Warrants, but the



---

Company shall not be obligated to pay any transfer taxes in respect of the Warrants or such shares.

8.2. Resignation, Consolidation, or Merger of Warrant Agent.

8.2.1.
Appointment of Successor Warrant Agent. The Warrant Agent, or any successor to it hereafter appointed, may resign its duties and be discharged from all further duties and liabilities hereunder after giving sixty (60) days notice in
writing to the Company. If the office of the Warrant Agent becomes vacant by resignation or incapacity to act or otherwise, the Company shall appoint in writing a successor Warrant Agent in place of the Warrant Agent. If the Company shall fail to
make such appointment within a period of 30 days after it has been notified in writing of such resignation or incapacity by the Warrant Agent or by the holder of the Warrant (who shall, with such notice, submit his Warrant for inspection by the
Company), then the holder of any Warrant may apply to the Supreme Court of the State of New York for the County of New York for the appointment of a successor Warrant Agent at the Companys cost. Any successor Warrant Agent, whether appointed
by the Company or by such court, shall be a corporation organized and existing under the laws of the State of New York, in good standing and having its principal office in the Borough of Manhattan, City and State of New York, and authorized under
such laws to exercise corporate trust powers and subject to supervision or examination by federal or state authority. After appointment, any successor Warrant Agent shall be vested with all the authority, powers, rights, immunities, duties, and
obligations of its predecessor Warrant Agent with like effect as if originally named as Warrant Agent hereunder, without any further act or deed; but if for any reason it becomes necessary or appropriate, the predecessor Warrant Agent shall execute
and deliver, at the expense of the Company, an instrument transferring to such successor Warrant Agent all the authority, powers and rights of such predecessor Warrant Agent hereunder; and upon request of any successor Warrant Agent, the Company
shall make, execute, acknowledge and deliver any and all instruments in writing for more fully and effectually vesting in and confirming to such successor Warrant Agent all such authority, powers, rights, immunities, duties and obligations.

8.2.2. Notice of Successor Warrant Agent. In the event a successor Warrant Agent shall be appointed, the Company
shall give notice thereof to the predecessor Warrant Agent and the transfer agent for the Common Stock not later than the effective date of any such appointment.

8.2.3. Merger or Consolidation of Warrant Agent. Any corporation into which the Warrant Agent may be merged or with which it may be consolidated or any corporation resulting from any merger or
consolidation to which the Warrant Agent shall be a party shall be the successor Warrant Agent under this Agreement without any further act.

8.3. Fees and Expenses of Warrant Agent.

8.3.1. Remuneration. The
Company agrees to pay the Warrant Agent reasonable remuneration for its services as such Warrant Agent hereunder and will reimburse the Warrant Agent upon demand for all expenditures that the Warrant Agent may reasonably incur in the execution of
its duties hereunder.



---

8.3.2. Further Assurances. The Company agrees to perform, execute, acknowledge and
deliver or cause to be performed, executed, acknowledged and delivered all such further and other acts, instruments and assurances as may reasonably be required by the Warrant Agent for the carrying out or performing of the provisions of this
Agreement.

8.4. Liability of Warrant Agent.

8.4.1. Reliance on Company Statement. Whenever in the performance of its duties under this Agreement, the Warrant Agent shall deem it necessary or desirable that any fact or matter be proved or
established by the Company prior to taking or suffering any action hereunder, such fact or matter (unless other evidence in respect thereof be herein specifically prescribed) may be deemed to be conclusively proved and established by a statement
signed by the President or Chairman of the Board of the Company and delivered to the Warrant Agent. The Warrant Agent may rely upon such statement for any action taken or suffered in good faith by it pursuant to the provisions of this Agreement.

8.4.2. Indemnity. The Warrant Agent shall be liable hereunder only for its own negligence, willful misconduct or bad
faith. The Company agrees to indemnify the Warrant Agent and save it harmless against any and all liabilities, including judgments, costs and reasonable counsel fees, for anything done or omitted by the Warrant Agent in the execution of this
Agreement except as a result of the Warrant Agents negligence, willful misconduct or bad faith.

8.4.3.
Exclusions. The Warrant Agent shall have no responsibility with respect to the validity of this Agreement or with respect to the validity or execution of any Warrant (except its countersignature thereof); nor shall it be responsible for any
breach by the Company of any covenant or condition contained in this Agreement or in any Warrant; nor shall it be responsible to make any adjustments required under the provisions of Section 4 hereof or responsible for the manner, method or
amount of any such adjustment or the ascertaining of the existence of facts that would require any such adjustment; nor shall it by any act hereunder be deemed to make any representation or warranty as to the authorization or reservation of any
shares of Common Stock to be issued pursuant to this Agreement or any Warrant or as to whether any shares of Common Stock will when issued be valid and fully paid and nonassessable.

8.5. Trust Fund Waiver. The Warrant Agent has no right, title, interest, or claim of any kind (Claim) in or to
any monies in the Trust Account (as defined in that certain Investment Management Trust Agreement, dated as of the date hereof, by and between the Company and Continental Stock Transfer & Trust Company as trustee of the Trust Account), and
hereby waives any Claim in or to any monies in the Trust Account it may have in the future, and hereby agrees not to seek recourse, reimbursement, payment or satisfaction for any Claim against the Trust Account for any reason whatsoever.

8.6. Acceptance of Agency. The Warrant Agent hereby accepts the agency established by this Agreement and agrees to perform the
same upon the terms and conditions herein set forth and among other things, shall account promptly to the Company with respect to Warrants exercised and concurrently account for, and pay to the Company, all moneys received



---

by the Warrant Agent for the purchase of shares of the Companys Common Stock through the exercise of Warrants.

9. Miscellaneous Provisions.

9.1. Successors. All the covenants and
provisions of this Agreement by or for the benefit of the Company or the Warrant Agent shall bind and inure to the benefit of their respective successors and assigns.

9.2. Notices. Any notice, statement or demand authorized by this Agreement to be given or made by the Warrant Agent or by the holder of any Warrant to or on the Company shall be sufficiently given
when so delivered if by hand or overnight delivery or if sent by certified mail or private courier service within five days after deposit of such notice, postage prepaid, addressed (until another address is filed in writing by the Company with the
Warrant Agent), as follows:

Shermen WSC Acquisition Corp.

c/o The Shermen Group

1251 Avenue of the Americas

Suite 900

New York, New York 10020

(212) 300-0020

Attn: Francis P. Jenkins, Jr.

Any notice, statement or demand authorized by this Agreement to be given or made by the holder of any Warrant or by the Company to or on
the Warrant Agent shall be sufficiently given when so delivered if by hand or overnight delivery or if sent by certified mail or private courier service within five days after deposit of such notice, postage prepaid, addressed (until another address
is filed in writing by the Warrant Agent with the Company), as follows:

Continental Stock Transfer & Trust Company

17 Battery Place

New York, New York 10004

Attn: Compliance Department

with a copy in each case to:

Dechert LLP

30 Rockefeller Plaza

New York, New York 10112

Attention: Gerald Adler, Esq.

and

Bingham McCutchen LLP

399 Park Avenue



---

New York, New York 10022

Attn: Floyd I. Wittlin, Esq.

9.3. Applicable Law. The validity, interpretation and performance of this Agreement and of the Warrants shall be governed in all respects by the laws of the State of New York, without giving effect
to conflict of laws. The Company hereby agrees that any action, proceeding or claim against it arising out of or relating in any way to this Agreement shall be brought and enforced in the courts of the State of New York or the United States District
Court for the Southern District of New York, and irrevocably submits to such jurisdiction, which jurisdiction shall be exclusive. The Company hereby waives any objection to such exclusive jurisdiction and that such courts represent an inconvenience
forum. Any such process or summons to be served upon the Company may be served by transmitting a copy thereof by registered or certified mail, return receipt requested, postage prepaid, addressed to it at the address set forth in Section 9.2
hereof. Such mailing shall be deemed personal service and shall be legal and binding upon the Company in any action, proceeding or claim.

9.4. Examination of the Warrant Agreement. A copy of this Agreement shall be available at all reasonable times at the office of the Warrant Agent in the Borough of Manhattan, City and State of New
York, for inspection by the registered holder of any Warrant. The Warrant Agent may require any such holder to submit his Warrant for inspection by it.

9.5. Counterparts. This Agreement may be executed in any number of counterparts and each of such counterparts shall for all purposes be deemed to be an original, and all such counterparts shall
together constitute but one and the same instrument.

9.6. Effect of Headings. The Section headings herein are for
convenience only and are not part of this Agreement and shall not affect the interpretation thereof.

[Remainder of Page
Intentionally Left Blank. Signature Page Follows.]



---

IN WITNESS WHEREOF, this Agreement has been duly executed by the parties hereto as of the
day and year first above written.



|        |  |  |  |     |  |                                              
|------- |  |  |  | --- |  | ---------------------------------------------
|Attest: |  |  |  |     |  |                                              
|        |  |  | 
|        |  |  |  | By: |  | SHERMEN WSC ACQUISITION CORP.                
|        |  |  | 
|        |  |  |  |     |  | /s/ Francis P. Jenkins, Jr.                  
|        |  |  |  |     |  | Name: Francis P. Jenkins, Jr.                
|        |  |  |  |     |  | Title:   Chairman and Chief Executive Officer
|Attest: |  |  |  |     |  |                                              
|        |  |  | 
|        |  |  |  | By: |  | CONTINENTAL STOCK TRANSFER & TRUST COMPANY   
|        |  |  | 
|        |  |  |  |     |  |                                              
|        |  |  |  |     |  | Name:                                        
|        |  |  |  |     |  | Title:                                       



[Signature
Page to Warrant Agreement]



---

IN WITNESS WHEREOF, this Agreement has been duly executed by the parties hereto as of the
day and year first above written.



|        |  |  |  |     |  |                                              
|------- |  |  |  | --- |  | ---------------------------------------------
|Attest: |  |  |  |     |  |                                              
|        |  |  | 
|        |  |  |  | By: |  | SHERMEN WSC ACQUISITION CORP.                
|        |  |  | 
|        |  |  |  |     |  |                                              
|        |  |  |  |     |  | Name: Francis P. Jenkins, Jr.                
|        |  |  |  |     |  | Title:   Chairman and Chief Executive Officer
|Attest: |  |  |  |     |  |                                              
|        |  |  | 
|        |  |  |  | By: |  | CONTINENTAL STOCK TRANSFER & TRUST COMPANY   
|        |  |  | 
|        |  |  |  |     |  | /s/ John W. Comer, Jr.                       
|        |  |  |  |     |  | Name: John W. Comer, Jr.                     
|        |  |  |  |     |  | Title:   Vice President                      



[Signature
Page to Warrant Agreement]