Document:

EXHIBIT 4.10
Description of the Company’s Securities
The following description of our common stock and the provisions of our Certificate of Incorporation, as amended, and Bylaws, as amended, are summaries of material terms and provisions and are qualified by reference to our Certificate of Incorporation, as amended, and the Bylaws, as amended, copies of which have been filed with the Securities and Exchange Commission as exhibits to Registrant’s Form 10K for the year ended June 30, 2022.
Our authorized capital stock consists of 100,000,000 shares of common stock.
The Company is authorized to issue one class of common stock.  Holders of common stock are entitled to one vote for each share of common stock held of record for the election of directors and on all matters submitted to a vote of stockholders.  Holders of common stock do not have cumulative voting rights in the election of directors.  Holders of common stock are entitled to receive dividends ratably, if any, as may be declared by our board of directors out of legally available funds.  The Board of Directors is divided into three classes (which are as nearly equal in number as possible).  Each class is elected for a term of office expiring at the third succeeding annual meeting of stockholders after their respective elections.  Upon our dissolution, liquidation or winding up, holders of common stock are entitled to share ratably in our net assets legally available after the payment of all our debts and other liabilities.  Holders of common stock have no preemptive, subscription, redemption or conversion rights.  There are no sinking fund provisions applicable to the common stock.  The outstanding shares of common stock are fully paid and non-assessable.  A majority of total votes of the holders of common stock is generally required to take action under our Certificate of Incorporation, as amended, and By-laws, as amended.

E-17​

EXHIBIT 10-P
[Napco Security Technologies Letterhead]
​

April 6, 2020
Stephen Spinelli
Dear Stephen,
We are pleased to offer you the position of Senior Vice President of Sales with NAPCO Security Technologies, Inc. This position reports directly to Kevin Buchel, Senior Vice President and CFO. Your start date is tentatively scheduled for Monday April 13th, 2020 or shortly thereafter.
Your compensation package will include an official base salary of $250,000 per annum.
It also includes the following:
		●	A bonus plan of up to $50,000 annually with the specifics to be provided in the near future.

		●	You will receive 30,000 stock options subject to Board and Compensation committee approval.

		●	NAPCO agrees to provide you with three weeks of vacation annually.

		●	NAPCO agrees to provide assistance for your COBRA coverage at 50% of your monthly payment for the next three months until your medical coverage becomes active.

Total Projected Compensation= $300,000 + stock options
As a full-time NAPCO employee you are also qualified for all other benefits as outlined in the employee handbook including; 401(k), paid vacation, personal time off, paid holidays, long term disability insurance, tuition reimbursement, medical insurance, dental insurance, and life insurance. Coverage for medical and dental insurance is available 90 days from your start date. This offer is contingent upon the return of the signed confidentiality agreement, favorable completion of your background check, as well as confirmation that you are not subject to any contract, agreement, or understanding that would restrict you in any way from working for NAPCO Security Technologies, Inc. in the designated role of Senior Vice President of Sales.
Please sign this document below to indicate your acceptance of this offer and email it back to me at xxxxxxx@napcosecurity.com.
Stephen, we look forward to working with you as a member of the NAPCO team. If you have any questions, please feel free to call me at (631) 842-9400 Ext. xxx.
Sincerely,
	​

	​

	​

	​

	​

	/s/ LOU MOLLICA
	​
	/s/ STEPHEN SPINELLI
	    
	April 6, 2020

	Lou R Mollica
	​
	Stephen Spinelli
	​
	Date

	Talent Acquisition Manager
	​
	​
	​
	​

	NAPCO Security Technologies, Inc.
	​
	​
	​
	​

​

E-24EX-10.1

 Exhibit 10.1 

EXECUTION VERSION 

AMENDMENT NO. 12 TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT, dated as of August 29, 2022 (this “Amendment
Agreement”), among HARSCO CORPORATION, a Delaware corporation (the “Company”), the Subsidiary Guarantors party hereto, BANK OF AMERICA, N.A., as administrative agent (the “Administrative Agent”), and the
Lenders party hereto (each, a “Consenting Lender”). 
 Reference is made to the Third Amended and Restated Credit
Agreement, dated as of November 2, 2016 (as amended by Amendment No. 1 to Credit Agreement, dated as of December 8, 2017, Amendment No. 2 to Credit Agreement, dated as of June 18, 2018, Amendment No. 3 to Credit
Agreement, dated as of June 18, 2018, Amendment No. 4 to Credit Agreement, dated as of June 28, 2019, Amendment No. 5 to Credit Agreement, dated as of March 31, 2020, Amendment No. 6 to Credit Agreement, dated as of
June 26, 2020, Amendment No. 7 to Credit Agreement, dated as of March 10, 2021, Amendment No. 8 to Credit Agreement, dated as of October 27, 2021, Amendment No. 9 to Credit Agreement, dated as of February 22, 2022,
Amendment No. 10 to Credit Agreement, dated as of June 24, 2022, and Amendment No. 11 to Credit Agreement, dated as of August 19, 2022, the “Existing Credit Agreement”; the Existing Credit Agreement as amended by
this Amendment Agreement, the “Amended Credit Agreement”), among the Company, the Approved Borrowers (as defined therein) from time to time party thereto, the lenders from time to time party thereto and Bank of America, N.A., as
Administrative Agent and Collateral Agent. Unless otherwise defined herein, terms defined in the Amended Credit Agreement and used herein shall have the meanings given to them in the Amended Credit Agreement. 

WHEREAS, the Company has requested certain amendments to the Existing Credit Agreement on the terms set forth herein (the “Majority
Revolving Credit Facility Lender Amendments”); 
 WHEREAS, in order to effect the foregoing, the Company and the Consenting
Lenders, which Consenting Lenders constitute Majority Revolving Credit Facility Lenders (as defined in the Existing Credit Agreement), desire to amend the Existing Credit Agreement as of the Amendment No. 12 Effective Date and approve the
Majority Revolving Credit Facility Lender Amendments as provided herein; and 
 WHEREAS, all notice requirements set forth in
Section 10.01 of the Existing Credit Agreement have been duly provided by the Company or waived by the Administrative Agent and the Consenting Lenders. 

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, the parties hereto hereby agree as follows: 
 Section 1. Credit Agreement Amendments. On the
Amendment No. 12 Effective Date, the Company, the Administrative Agent, and the Consenting Lenders agree that the Existing Credit Agreement is, effective as of the Amendment No. 12 Effective Date, hereby amended pursuant to
Section 10.01 of the Existing Credit Agreement, as follows: 
 (a) The following definition is hereby added
immediately after the definition of “Amendment No. 7 Transactions”: 

  
 1 

 “‘Amendment No. 12 Effective Date’:
August 29, 2022.” 
 (b) Clause (b) of the definition of “Applicable Margin” is hereby
amended by adding the bolded text (indicated textually in the same manner as the following example: bolded text) between the end of the existing pricing-grid applicable “From and after the Amendment No. 7 Effective Date” and
the last paragraph of such clause (b): 
 From and after the Amendment No. 12 Effective Date 

 

											
	 Pricing
Level 
	  	 Total Net Leverage

Ratio 
	  	Eurocurrency
Loans 	 	 	Base Rate
Loans 	 
	 1
	  	< 2.75:1.00	  	 	1.50	% 	 	 	0.50	% 
	 2
	  	≥ 2.75:1.00 and < 3.25:1.00	  	 	1.75	% 	 	 	0.75	% 
	 3
	  	≥ 3.25:1.00 and < 4.00:1.00	  	 	2.00	% 	 	 	1.00	% 
	 4
	  	≥ 4.00:1.00 and < 4.50:1.00	  	 	2.25	% 	 	 	1.25	% 
	 5
	  	≥ 4.50:1.00 and < 5.00:1.00	  	 	2.50	% 	 	 	1.50	% 
	 6
	  	≥ 5.00:1.00	  	 	2.75	% 	 	 	1.75	% 

 (c) The definition of “Relief Period Termination Date” is hereby amended by
adding the double-underlined text (indicated textually in the same manner as the following example: double-underlined
text) and by deleting the stricken text (indicated textually in the same manner as the following
example: stricken text): 

“‘Relief Period Termination Date’: the earlier of (i) the date on which the Administrative Agent receives a
Compliance Certificate from the Company pursuant to Section 6.02(b) demonstrating a Total Net Leverage Ratio not greater than 4.00:1.00
and a ratio of Consolidated EBITDA to Consolidated Interest Charges, on a Pro Forma Basis, of not less than 3.00:1.00
and (ii) the date on which the Administrative Agent receives a Compliance Certificate from the Company pursuant to Section 6.02(b) in respect of the fiscal quarter ending on December 31,
2023December 31, 2024.” 

(d) Section 7.01(a) is hereby amended by adding the double-underlined text (indicated textually in the same manner as the
following example: double-underlined text) and by deleting the stricken
text (indicated textually in the same manner as the following example: stricken text): 

  
 2 

 
“without the written consent of the Majority Revolving Credit Facility Lenders, permit the Total Net Leverage Ratio on a Pro Forma Basis as at the last day of any Test Period to exceed
(i) in the case of any Test Period ending on or before March 31, 2022, 5.75:1.00, (ii) in the case of the any Test Period ending on June 30, 2022 through and including December 31, 2023, 5.50:1.00, (iii) in the case of the Test Period ending on September 30,
2022March 31, 2024, 5.25:1.00, (iv) in the case of the
Test Period ending on December 31,
2022June 30, 2024, 5.00:1.00, (v) in the case of
the Test Period ending on March 31, 2023September 30, 2024,
4.754.50:1.00,
(vi) in the case of the Test Period ending on June 30, 2023, 4.50:1.00, (vii) in the case of the Test Period ending on September 30, 2023,
4.25:1.00 and (viiivi) in the case of any Test Period ending thereafter, 4.00:1.00; provided, solely in the case of this
subsection (a), that, notwithstanding the foregoing, (x) from and after the closing of the Rail Disposition, the maximum permitted Total Net Leverage Ratio levels set forth in this subsection (a) (other than the Total Net Leverage
Ratio level specified in subclause (viiivi) of this subsection (a)) shall each be decreased by 0.250.50
, and (y) from and after the Relief Period Termination Date, the maximum permitted Total Net Leverage Ratio levels set forth in this subsection (a) shall be increased by 0.50 for a period of one year following the
consummation of any Significant Acquisition (but shall in no event exceed 4.50:1.00); provided, further, that such increase described in this subclause (y) shall not be cumulative in the event that more than one Significant
Acquisition is consummated within the same 12-month period.” 
 (e) Section 7.01(b) is hereby
amended by adding the double-underlined text (indicated textually in the same manner as the following example: double-underlined
text): 
 “without the written consent of the Majority Revolving Credit Facility Lenders, permit the ratio
of Consolidated EBITDA to Consolidated Interest Charges, on a Pro Forma Basis (i) as at the last day of any Test
Period ending on September 30, 2022 through and including December 31, 2024, to be less than 2.75:1.00
(provided,
 solely in the case of this clause (i), from and after the closing of the Rail Disposition, such ratio shall be increased by 0.25) and (ii) as at the last day of any Test Period ending thereafter, to be less than
3.00:1.00.” 
 Section 2. Representations and Warranties. The Company hereby represents and warrants to the
Administrative Agent and each Lender party hereto that (x) no Default or Event of Default has occurred and is continuing on and as of the Amendment No. 12 Effective Date after giving effect hereto, and (y) each of the representations
and warranties in each of the Loan Documents is true and correct in all material respects (except that any representation and warranty that is qualified by materiality shall be true and correct in all respects) on and as of the Amendment No. 12
Effective Date after giving effect hereto (except to the extent such representations and warranties are specifically made as of an earlier date, in which case such representations and warranties were true and correct in all material respects as of
such date). 

  
 3 

 Section 3. Effectiveness of this Amendment Agreement. This Amendment Agreement
shall become effective as of the date hereof, subject to the satisfaction of the following conditions precedent on such date (the date on which all of such conditions shall first be satisfied, the “Amendment No. 12 Effective
Date”): 
 (a) the Administrative Agent shall have received in .pdf or electronic format (followed promptly by
originals to the extent requested by the Administrative Agent) and, unless otherwise specified, properly executed by a Responsible Officer of the signing Loan Party and by each other party thereto, each in form and substance reasonably satisfactory
to the Administrative Agent and its legal counsel: 
 (i) counterparts hereof that, when taken together, bear the signatures of the Loan
Parties, the Administrative Agent, the Collateral Agent, and each other Consenting Lender collectively constituting the Majority Revolving Credit Facility Lenders; and 

(ii) a certificate of a Responsible Officer certifying as to the matters set forth in Section 2 hereof; and 

(b) the Administrative Agent shall have received for the ratable benefit of each Consenting Lender an amendment fee in an
amount equal to 0.10% of the aggregate amount of the Revolving Credit Commitments of such Consenting Lender as of the Amendment No. 12 Effective Date; and 

(c) All other fees and expenses (in the case of expenses, to the extent invoiced at least three (3) Business Days prior to
the Amendment No. 12 Effective Date (except as otherwise reasonably agreed by the Company)) required to be paid hereunder, under the Amended Credit Agreement on the Amendment No. 12 Effective Date, shall have been paid. 

Section 4. Effect of Amendment; No Novation. 

(a) Except as expressly set forth herein or in the Amended Credit Agreement, this Amendment Agreement shall not by implication
or otherwise limit, impair, constitute a waiver of or otherwise affect the rights and remedies of the Lenders or the Agents under the Existing Credit Agreement or any other Loan Document and shall not alter, modify, amend or in any way affect any of
the terms, conditions, obligations, covenants or agreements contained in the Existing Credit Agreement or any other provision of the Existing Credit Agreement or of any other Loan Document, all of which are ratified and affirmed in all respects and
shall continue in full force and effect. 
 (b) Nothing herein shall be deemed to entitle the Company to a consent to, or a
waiver, amendment, modification or other change of, any of the terms, conditions, obligations, covenants or agreements contained in the Existing Credit Agreement or any other Loan Document in similar or different circumstances. 

  
 4 

 (c) On and after the Amendment No. 12 Effective Date, each reference in
the Existing Credit Agreement to “this Agreement”, “hereunder”, “hereof’, “herein”, or words of like import, and each reference to the “Credit Agreement”, in any other Loan Document shall be deemed a
reference to the Amended Credit Agreement. This Amendment Agreement shall constitute a “Loan Document” for all purposes of the Amended Credit Agreement and the other Loan Documents. 

(d) The parties hereto hereby consent to the Majority Revolving Credit Facility Lender Amendments upon the terms and subject to
the conditions set forth herein. Upon the Amendment No. 12 Effective Date, all conditions and requirements set forth in the Existing Credit Agreement or the other Loan Documents relating to the effectiveness of this Amendment Agreement,
including the Majority Revolving Credit Facility Lender Amendments, shall be deemed satisfied. 
 (e) Nothing contained in
this Amendment Agreement, the Amended Credit Agreement or any other Loan Document shall constitute or be construed as a novation of any of the Obligations. 

Section 5. Governing Law. THIS AMENDMENT AGREEMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES UNDER THIS AMENDMENT AGREEMENT
SHALL BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK, WITHOUT REGARD TO CONFLICT OF LAWS PRINCIPLES. 

Section 6. Costs and Expenses. In accordance with, and subject to the limitations of, Section 10.05 of the Amended Credit
Agreement, the Company agrees to reimburse the Administrative Agent for its reasonable documented out-of-pocket expenses in connection with this Amendment Agreement, including the reasonable documented fees, charges and disbursements of counsel for
the Administrative Agent. 
 Section 7. Electronic Execution; Electronic Records; Counterparts. This Amendment Agreement and any
document, amendment, approval, consent, information, notice, certificate, request, statement, disclosure or authorization related to this Agreement (each a “Communication”), including Communications required to be in writing, may,
if agreed by the Administrative Agent, be in the form of an Electronic Record and may be executed using Electronic Signatures, including, without limitation, facsimile and/or .pdf and shall be considered an original, and shall have the same legal
effect, validity and enforceability as a paper record. This Amendment Agreement may be executed in as many counterparts as necessary or convenient, including both paper and electronic counterparts, but all such counterparts are one and the same
Amendment Agreement. For the avoidance of doubt, the authorization under this paragraph may include, without limitation, use or acceptance by the Administrative Agent of a manually signed paper Communication which has been converted into electronic
form (such as scanned into PDF format), or an electronically signed Communication converted into another format, for transmission, delivery and/or retention. Notwithstanding anything contained herein to the contrary, the Administrative Agent is
under no obligation to accept an Electronic Signature in any form or in any format unless expressly agreed to by the Administrative Agent pursuant to procedures approved by it; provided, further, without limiting the foregoing, (a) to the
extent the Administrative Agent has agreed to accept such Electronic Signature, the Administrative Agent shall be entitled to rely on any such Electronic Signature without further verification and (b) upon the request of the Administrative
Agent any Electronic Signature shall be promptly followed by a 

  
 5 

 
manually executed, original counterpart. For purposes hereof, “Electronic Record” and “Electronic Signature” shall have the meanings assigned to them, respectively, by 15 USC
§7006, as it may be amended from time to time. 
 Section 8. Headings. The headings of this Amendment Agreement are for
purposes of reference only and shall not limit or otherwise affect the meaning hereof. 
 [Remainder of page intentionally blank] 

  
 6 

 IN WITNESS WHEREOF, the parties hereto have caused this Amendment Agreement to be duly
executed and delivered by their respective duly authorized officers or representatives as of the day and year first above written. 
  

			
	 HARSCO CORPORATION,
 as
Borrower

		
	By:	 	 /s/ Michael Kolinsky

		 	Name: Michael Kolinsky
		 	 Title:  Vice President - Treasurer, Tax and Real Estate

  
 [Signature Page to
Amendment No. 12] 

 
			
	 HARSCO DEFENSE HOLDING LLC

HARSCO MINNESOTA FINANCE, INC.

PROTRAN TECHNOLOGY LIMITED LIABILITY COMPANY

HARSCO MINERALS TECHNOLOGIES LLC

HARSCO FINANCIAL HOLDINGS, LLC

		
	By:	 	 /s/ Michael H. Kolinsky

		 	Name: Michael H. Kolinsky
		 	Title:   President

  
 [Signature Page to
Amendment No. 12] 

 
			
	 HARSCO MINNESOTA LLC

HARSCO TECHNOLOGIES LLC

		
	By:	 	 /s/ Daniel G. King

		 	Name: Daniel G. King
		 	Title:   President

  
 [Signature Page to
Amendment No. 12] 

 
			
	HARSCO RAIL, LLC
		
	By:	 	 /s/ Jon S. Ploetz

		 	Name: Jon S. Ploetz
		 	Title:   Secretary

  
 [Signature Page to
Amendment No. 12] 

 
			
	 HARSCO METRO RAIL HOLDINGS, LLC

HARSCO METRO RAIL, LLC

		
	By:	 	 /s/ Jon S. Ploetz

		 	Name: Jon S. Ploetz
		 	Title: Vice President and Secretary

  
 [Signature Page to
Amendment No. 12] 

 
			
	 ALTEK, L.L.C.
 HARSCO
CLEAN EARTH HOLDINGS, LLC

		
	By:	 	 /s/ Jon S. Ploetz

		 	Name: Jon S. Ploetz
		 	Title: Secretary

  
 [Signature Page to
Amendment No. 12] 

 
	
	 21ST CENTURY ENVIRONMENTAL MANAGEMENT OF
NEVADA, LLC
 21ST CENTURY ENVIRONMENTAL MANAGEMENT, LLC
OF RHODE ISLAND
 ADVANCED REMEDIATION & DISPOSAL TECHNOLOGIES OF DELAWARE, LLC

AERC ACQUISITION CORPORATION

ALLIED ENVIRONMENTAL GROUP, LLC

ALLWORTH, LLC

BURLINGTON ENVIRONMENTAL, LLC

CEHI ACQUISITION, LLC

CEI HOLDING, LLC

CHEMICAL POLLUTION CONTROL OF FLORIDA, LLC

CHEMICAL RECLAMATION SERVICES, LLC

CHEMICAL POLLUTION CONTROL, LLC OF NEW YORK

CLEAN EARTH ENVIRONMENTAL SERVICES, INC.

AES ASSET ACQUISITION CORPORATION

CLEAN EARTH ENVIRONMENTAL SOLUTIONS, INC.

CLEAN EARTH, LLC

CLEAN EARTH HOLDINGS, LLC

CLEAN EARTH SPECIALTY WASTE SOLUTIONS, INC.

CLEAN EARTH OF ALABAMA, INC.

CLEAN EARTH OF CARTERET, LLC

CLEAN EARTH DREDGING TECHNOLOGIES, LLC

CLEAN EARTH OF GEORGIA, LLC

CLEAN EARTH OF GREATER WASHINGTON, LLC

CLEAN EARTH OF MARYLAND, LLC

CLEAN EARTH OF NEW CASTLE, LLC

CLEAN EARTH OF NORTH JERSEY, INC.

CLEAN EARTH OF PHILADELPHIA, LLC

CLEAN EARTH OF SOUTHEAST PENNSYLVANIA, LLC

CLEAN EARTH OF SOUTHERN FLORIDA, LLC

CLEAN EARTH OF WILLIAMSPORT, LLC

CLEAN EARTH OF MICHIGAN, LLC

CLEAN ROCK PROPERTIES LTD.

ESOL TOPCO, LLC    

  
 [Signature Page to
Amendment No. 12] 

 
			
	 GENERAL ENVIRONMENTAL MANAGEMENT OF RANCHO CORDOVA LLC

LUNTZ ACQUISITION (DELAWARE), LLC

NORTHLAND ENVIRONMENTAL, LLC

NORTRU, LLC

PHILIP RECLAMATION SERVICES, HOUSTON, LLC

PSC ENVIRONMENTAL SERVICES LLC

PSC RECOVERY SYSTEMS, LLC

REAL PROPERTY ACQUISITION LLC

REPUBLIC ENVIRONMENTAL RECYCLING (NEW JERSEY), INC.

REPUBLIC ENVIRONMENTAL SYSTEMS (PENNSYLVANIA), LLC

REPUBLIC ENVIRONMENTAL SYSTEMS (TRANSPORTATION GROUP), LLC

RHO-CHEM, LLC

SOLVENT RECOVERY, LLC

GARDNER ROAD OIL, LLC

CLEAN EARTH MOBILE SERVICES, LLC

CLEAN EARTH OF PUERTO RICO, LLC

ENVIRONMENTAL SOIL MANAGEMENT INC

ENVIRONMENTAL SOIL MANAGEMENT OF NEW YORK, LIMITED LIABILITY COMPANY

MKC ACQUISITION CORPORATION

		
	By:	 	 /s/ Sarah Kowalczyk

		 	Name: Sarah Kowalczyk
		 	Title: Secretary

  
 [Signature Page to
Amendment No. 12] 

			
	 CLEAN EARTH CORPORATE SERVICES, LLC

CLEAN EARTH GOVERNMENT SERVICES, LLC

		
	By:	 	 /s/ Sarah Kowalczyk

		 	Name: Sarah Kowalczyk
		 	Title: Secretary

  
 [Signature Page to
Amendment No. 12] 

 
			
	 BANK OF AMERICA, N.A.,
 as
Administrative Agent

		
	By:	 	 /s/ Elizabeth Uribe

		 	Name: Elizabeth Uribe
		 	Title: Assitant Vice President

  
 [Signature Page to
Amendment No. 12] 

 
			
	 BANK OF AMERICA, N.A.,
 as a
Revolving Credit Lender

		
	By:	 	 /s/ Kevin Dobosz

		 	Name: Kevin Dobosz
		 	Title: Senior Vice President

  
 [Signature Page to
Amendment No. 12] 

 
			
	 Royal Bank of Canada
 as a Revolving
Credit Lender

		
	By:	 	 /s/ Nikhil Madhok

		 	Name: Nikhil Madhok
		 	Title: Authorized Signatory

  
 [Signature Page to
Amendment No. 12] 

 
			
	 BMO Harris Bank, N.A.
 as a
Revolving Credit Lender

		
	By:	 	 /s/ Joshua Hovermale

		 	Name: Joshua Hovermale
		 	Title: Managing Director

  
 [Signature Page to
Amendment No. 12] 

 
			
	 Goldman Sachs Bank USA,
 as a
Revolving Credit Lender

		
	By:	 	 /s/ Keshia Leday

		 	Name: Keshia Leday
		 	Title: Authorized Signatory

  
 [Signature Page to
Amendment No. 12] 

 
			
	 HSBC Bank USA, National Association,

as a Revolving Credit Lender

		
	By:	 	 /s/ JiaQi Zhang

		 	Name: JiaQi Zhang
		 	Title:   Vice President (#23294)

  
 [Signature Page to
Amendment No. 12] 

 
			
	 U.S. BANK NATIONAL ASSOCIATION,
 as
a Revolving Credit Lender

		
	By:	 	 /s/ Kelsey Hehman

		 	Name: Kelsey Hehman
		 	Title:   Assistant Vice President

  
 [Signature Page to
Amendment No. 12] 

 
			
	 PNC Bank, NA,
 as a Revolving Credit
Lender

		
	By:	 	 /s/ Michael P. Dungan

		 	Name: Michael P. Dungan
		 	Title:   SVP

  
 [Signature Page to
Amendment No. 12] 

 
			
	 Fifth Third Bank, National Association

as a Revolving Credit Lender

		
	By:	 	 /s/ Sam Schuessler

		 	Name: Sam Schuessler
		 	Title:   Associate

  
 [Signature Page to
Amendment No. 12] 

 
			
	 KEYBANK NATIONAL ASSOCIATION,
 as a
Revolving Credit Lender

		
	By:	 	 /s/ Jason A. Nichols

		 	Name: Jason A. Nichols
		 	Title:   Vice President

  
 [Signature Page to
Amendment No. 12] 

 
			
	 BARCLAYS BANK PLC,
 as a Revolving
Credit Lender

		
	By:	 	 /s/ Charlene Saldanha

		 	Name: Charlene Saldanha
		 	Title:   Vice President

  
 [Signature Page to
Amendment No. 12] 

 
			
	 ING Bank N.V., Dublin Branch,
 as a
Revolving Credit Lender

		
	By:	 	 /s/ Cormac Langford

		 	Name: Cormac Langford
		 	Title:   Director

  

			
	By:	 	 /s/ Sean Hassett

		 	Name: Sean Hassett
		 	Title: Director

  
 [Signature Page to
Amendment No. 12] 

 
			
	 The Huntington National Bank,
 as a
Revolving Credit Lender

		
	By:	 	 /s/ Mark Zobel

		 	Name: Mark Zobel
		 	Title:   Vice President

  
 [Signature Page to
Amendment No. 12] 

 
			
	 Truist Bank,
 as a Revolving Credit
Lender

		
	By:	 	 /s/ Katherine Bass

		 	Name: Katherine Bass
		 	Title:   Managing Director

  
 [Signature Page to
Amendment No. 12] 

 
			
	 DEUTSCHE BANK AG NEW YORK BRANCH,

as a Revolving Credit Lender

		
	By:	 	 /s/ Jessica Lutrario

		 	Name: Jessica Lutrario
		 	Title:   Associate

  

			
	By:	 	 /s/ Suzan Onal

		 	Name: Suzan Onal
		 	Title:   Vice President

  
 [Signature Page to
Amendment No. 12] 

 
			
	 Bank of the West,
 as a Revolving
Credit Lender

		
	By:	 	 /s/ Jeffrey Toner

		 	Name: Jeffrey Toner
		 	Title:   Director

  
 [Signature Page to
Amendment No. 12] 

 
			
	 ARAB BANKING CORPORATION (B.S.C.)

NEW YORK BRANCH,
 as a Revolving Credit
Lender

		
	By:	 	 /s/ David Giacalone

		 	Name: David Giacalone
		 	Title:   Chief Risk Officer

  

			
	By:	 	 /s/ Tony Berbari

		 	Name: Tony Berbari
		 	Title:   General Manager

  
 [Signature Page to
Amendment No. 12] 

 CONSENT AND REAFFIRMATION 

Each of the undersigned hereby acknowledges receipt of a copy of the foregoing Amendment Agreement (the “Amendment
Agreement”), dated as of August 29, 2022, which amends the Third Amended and Restated Credit Agreement dated as of November 2, 2016 (as amended by Amendment No. 1 to Credit Agreement, dated as of December 8, 2017,
Amendment No. 2 to Credit Agreement, dated as of June 18, 2018, Amendment No. 3 to Credit Agreement, dated as of June 18, 2018, Amendment No. 4 to Credit Agreement, dated as of June 28, 2019, Amendment No. 5 to
Credit Agreement, dated as of March 31, 2020, Amendment No. 6 to Credit Agreement, dated as of June 26, 2020, Amendment No. 7 to Credit Agreement, dated as of March 10, 2021, Amendment No. 8 to Credit Agreement, dated
as of October 27, 2021, Amendment No. 9 to Credit Agreement, dated as of February 22, 2022, Amendment No. 10 to Credit Agreement, dated as of June 24, 2022, and Amendment No. 11 to Credit Agreement, dated as of
August 19, 2022, the “Existing Credit Agreement”), among Harsco Corporation, a Delaware corporation, Bank of America, N.A., as Administrative Agent, and the several lenders from time to time party thereto. Capitalized terms
used in this Consent and Reaffirmation and not defined herein shall have the meanings given to them in the Amended Credit Agreement (as defined in the Amendment Agreement). In connection with the execution and delivery of the Amendment Agreement,
each of the undersigned, except as expressly set forth in the Amendment Agreement, (i) ratifies and affirms all the provisions in the Amended Credit Agreement, the Guarantee and Collateral Agreement and the other Loan Documents,
(ii) agrees that the terms and conditions of the Loan Documents, including the security provisions set forth therein, shall continue in full force and effect as amended thereby, and shall not be impaired or limited by the execution or
effectiveness of the Amendment Agreement and (iii) acknowledges and agrees that the Collateral continues to secure, to the fullest extent possible in accordance with the Amended Credit Agreement and the Guarantee and Collateral Agreement, the
payment and performance of all Obligations. All references in the Loan Documents to (i) the “Credit Agreement” shall hereafter mean and refer to the Existing Credit Agreement as amended pursuant to the Amendment Agreement and
(ii) the term “Obligations” shall hereafter mean and refer to the Obligations as redefined in the Amended Credit Agreement and shall include all additional Obligations resulting from or incurred pursuant to the Amended Credit
Agreement. 
 The terms and conditions of the Guarantee and Collateral Agreement and the other Security Documents are hereby reaffirmed by
the Subsidiary Guarantors. 
 Dated: August 29, 2022 

[Signature Pages Follow] 

 
			
	 HARSCO CORPORATION,
 as
Borrower

		
	By:	 	 /s/ Michael Kolinsky

		 	Name: Michael Kolinsky
		 	Title:   Vice President - Treasurer, Tax and Real Estate

  
 [Signature Page to
Consent and Reaffirmation] 

 
			
	 HARSCO DEFENSE HOLDING LLC

HARSCO MINNESOTA FINANCE, INC.

PROTRAN TECHNOLOGY LIMITED LIABILITY COMPANY

HARSCO MINERALS TECHNOLOGIES LLC

HARSCO FINANCIAL HOLDINGS, LLC

		
	By:	 	 /s/ Michael H. Kolinsky

		 	Name: Michael H. Kolinsky
		 	Title:   President

  
 [Signature Page to
Consent and Reaffirmation] 

 
			
	 HARSCO MINNESOTA LLC

HARSCO TECHNOLOGIES LLC

		
	By:	 	 /s/ Daniel G. King

		 	Name: Daniel G. King
		 	Title:   President

  
 [Signature Page to
Consent and Reaffirmation] 

 
			
	HARSCO RAIL, LLC
		
	By:	 	 /s/ Jon S. Ploetz

		 	Name: Jon S. Ploetz
		 	Title:   Secretary

  
 [Signature Page to
Consent and Reaffirmation] 

 
			
	 HARSCO METRO RAIL HOLDINGS, LLC

HARSCO METRO RAIL, LLC

		
	By:	 	 /s/ Jon S. Ploetz

		 	Name: Jon S. Ploetz
		 	Title:   Vice President and Secretary

  
 [Signature Page to
Consent and Reaffirmation] 

 
			
	 ALTEK, L.L.C.
 HARSCO
CLEAN EARTH HOLDINGS, LLC

		
	By:	 	 /s/ Jon S. Ploetz

		 	Name: Jon S. Ploetz
		 	Title:   Secretary

  
 [Signature Page to
Consent and Reaffirmation] 

 
	
	 21ST CENTURY ENVIRONMENTAL MANAGEMENT OF
NEVADA, LLC
 21ST CENTURY ENVIRONMENTAL MANAGEMENT, LLC
OF RHODE ISLAND
 ADVANCED REMEDIATION & DISPOSAL TECHNOLOGIES OF DELAWARE, LLC

AERC ACQUISITION CORPORATION

ALLIED ENVIRONMENTAL GROUP, LLC

ALLWORTH, LLC

BURLINGTON ENVIRONMENTAL, LLC

CEHI ACQUISITION, LLC

CEI HOLDING, LLC

CHEMICAL POLLUTION CONTROL OF FLORIDA, LLC

CHEMICAL RECLAMATION SERVICES, LLC

CHEMICAL POLLUTION CONTROL, LLC OF NEW YORK

CLEAN EARTH ENVIRONMENTAL SERVICES, INC.

AES ASSET ACQUISITION CORPORATION

CLEAN EARTH, LLC

CLEAN EARTH ENVIRONMENTAL SOLUTIONS, INC.

CLEAN EARTH HOLDINGS, INC.

CLEAN EARTH SPECIALTY WASTE SOLUTIONS, INC.

CLEAN EARTH OF ALABAMA, INC.

CLEAN EARTH OF CARTERET, LLC

CLEAN EARTH DREDGING TECHNOLOGIES, LLC

CLEAN EARTH OF GEORGIA, LLC

CLEAN EARTH OF GREATER WASHINGTON, LLC

CLEAN EARTH OF MARYLAND, LLC

CLEAN EARTH OF NEW CASTLE, LLC

CLEAN EARTH OF NORTH JERSEY, INC.

CLEAN EARTH OF PHILADELPHIA, LLC

CLEAN EARTH OF SOUTHEAST PENNSYLVANIA, LLC

CLEAN EARTH OF SOUTHERN FLORIDA, LLC

CLEAN EARTH OF WILLIAMSPORT, LLC

CLEAN EARTH OF MICHIGAN, LLC

CLEAN ROCK PROPERTIES LTD.

ESOL TOPCO, LLC

  
 [Signature Page to
Consent and Reaffirmation] 

 
			
	 GENERAL ENVIRONMENTAL MANAGEMENT OF RANCHO CORDOVA LLC

LUNTZ ACQUISITION (DELAWARE), LLC

NORTHLAND ENVIRONMENTAL, LLC

NORTRU, LLC

PHILIP RECLAMATION SERVICES, HOUSTON, LLC

PSC ENVIRONMENTAL SERVICES LLC

PSC RECOVERY SYSTEMS, LLC

REAL PROPERTY ACQUISITION LLC

REPUBLIC ENVIRONMENTAL RECYCLING (NEW JERSEY), INC.

REPUBLIC ENVIRONMENTAL SYSTEMS (PENNSYLVANIA), LLC

REPUBLIC ENVIRONMENTAL SYSTEMS (TRANSPORTATION GROUP), LLC

RHO-CHEM, LLC

SOLVENT RECOVERY, LLC

GARDNER ROAD OIL, LLC

CLEAN EARTH MOBILE SERVICES, LLC

CLEAN EARTH OF PUERTO RICO, LLC

ENVIRONMENTAL SOIL MANAGEMENT INC

ENVIRONMENTAL SOIL MANAGEMENT OF NEW YORK, LIMITED LIABILITY COMPANY

MKC ACQUISITION CORPORATION

		
	By:	 	 /s/ Sarah Kowalczyk

		 	Name: Sarah Kowalczyk
		 	Title:   Secretary

  
 [Signature Page to
Consent and Reaffirmation] 

			
	 CLEAN EARTH CORPORATE SERVICES, LLC

CLEAN EARTH GOVERNMENT SERVICES, LLC

		
	By:	 	 /s/ Sarah Kowalczyk

		 	Name: Sarah Kowalczyk
		 	Title:   Secretary

  
 [Signature Page to
Consent and Reaffirmation]

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