Document:

EX-10.4

 Exhibit 10.4 

EXECUTION VERSION 
  

 
  

AFFILIATE GUARANTY 

Dated as of March 31, 2015 

Re:    $20,000,000 5.38% Senior Notes, Series A-3, due December 15, 2015

 of 
 STERIS
CORPORATION 
  
  

 

 TABLE OF CONTENTS 

(Not a part of the Agreement) 
  

							
	SECTION	 	HEADING	  	PAGE	 
	SECTION 1.	 	DEFINITIONS	  	 	2	  
			
	SECTION 2.	 	GUARANTY OF NOTES AND NOTE PURCHASE AGREEMENT	  	 	2	  
			
	SECTION 3.	 	GUARANTY OF PAYMENT AND PERFORMANCE	  	 	3	  
			
	SECTION 4.	 	GENERAL PROVISIONS RELATING TO THE GUARANTY	  	 	3	  
			
	SECTION 5.	 	REPRESENTATIONS AND WARRANTIES OF THE GUARANTORS	  	 	8	  
			
	SECTION 6.	 	GUARANTOR COVENANTS	  	 	9	  
			
	SECTION 7.	 	PAYMENTS FREE AND CLEAR OF TAXES	  	 	10	  
			
	SECTION 8.	 	GOVERNING LAW	  	 	11	  
			
	SECTION 9.	 	CURRENCY OF PAYMENTS, INDEMNIFICATION	  	 	11	  
			
	SECTION 10.	 	AMENDMENTS, WAIVERS AND CONSENTS	  	 	12	  
			
	SECTION 11.	 	NOTICES	  	 	13	  
			
	SECTION 12.	 	MISCELLANEOUS	  	 	13	  
			
	SECTION 13.	 	RELEASE	  	 	14	  

 AFFILIATE GUARANTY 

Re:    $20,000,000 5.38% Senior Notes, Series A-3, due December 15, 2015

 This AFFILIATE GUARANTY dated as of March 31, 2015 (the or this “Guaranty”) is
entered into on a joint and several basis by each of the undersigned, together with any entity which may become a party hereto by execution and delivery of a Guaranty Supplement in substantially the form set forth as Exhibit A hereto (a
“Guaranty Supplement”) (which parties are hereinafter referred to individually as a “Guarantor” and collectively as the “Guarantors”). 

R E C I T A L S 

A. Each Guarantor is an affiliate of STERIS Corporation, an Ohio corporation (the “Company”). 

B. In order to refinance certain debt and for general corporate purposes, the Company entered into those certain Note Purchase Agreements
dated as of December 17, 2003 (as amended by the First Amendment dated as of August 15, 2008, the “Original Note Purchase Agreements”) between the Company and each of the purchasers party thereto providing for, inter
alia, the issue and sale by the Company of $40,000,000 aggregate principal amount of its 4.20% Senior Notes, Series A-1, due December 15, 2008 (the
“Series A-1 Notes”), $40,000,000 aggregate principal amount of its 5.25% Senior Notes, Series A-2, due December 15, 2013 (the
Series A-2 Notes”), and $20,000,000 aggregate principal amount of its 5.38% Senior Notes, Series A-3, due December 15, 2015 (the “Series A-3 Notes”; collectively, with the Series A-1 Notes and the Series A-2 Notes, the “Original
Series A Notes”). Only the Series A-3 Notes remain outstanding. 
 C. The Company and
the Holders have agreed to (i) enter into that certain Second Amendment dated as of             , 2015 to the Original Note Purchase Agreements (the “Second
Amendment”), pursuant to which the Amended and Restated Note Purchase Agreement dated as of             , 2015 between the Company and the Noteholders (as defined therein) (the
“Note Purchase Agreement”) shall replace the Original Note Purchase Agreements and (ii) replace the outstanding Original Series A Notes with amended and restated notes (together with any supplemental notes issued under the Note
Purchase Agreement, the “Notes”). Each holder of the Notes shall be referred to as a “Holder”. 
 D. The
Holders have required as a condition to their agreement to enter into the Second Amendment and to amend and restate the outstanding Original Series A Notes with the Notes that the Company cause each of the undersigned to enter into this Guaranty and
that the Reporting Entity (as defined in the Note Purchase Agreement) cause each Affiliate (as defined in the Note Purchase Agreement) other than the Company that after the date hereof becomes an obligor under or delivers a guaranty pursuant to a
Material Credit Facility (as defined in the Note Purchase Agreement) to enter into a Guaranty Supplement and the Company has agreed to cause each of the undersigned to execute this Guaranty and the Reporting Entity shall cause such additional
Affiliates to execute a Guaranty Supplement, in each case in order to induce the Holders to enter into the Second Amendment and amend and restate the outstanding Original Series A Notes with the Notes and thereby benefit the Reporting Entity and its
Subsidiaries. 

 E. Each of the Guarantors will derive substantial direct and indirect benefit from the Second
Amendment and amendment and restatement of the outstanding Original Series A Notes with the Notes by the Holders. 
 Now,
THEREFORE, as required by the Note Purchase Agreement and in consideration of the premises and other good and valuable consideration, the receipt and sufficiency whereof are hereby acknowledged, each Guarantor does hereby covenant and
agree, jointly and severally, intending to be legally bound as follows: 
 SECTION 1. DEFINITIONS. 

Capitalized terms used herein shall have the meanings set forth in the Note Purchase Agreement unless herein defined or the context shall
otherwise require. 
 SECTION 2. GUARANTY OF NOTES AND NOTE
PURCHASE AGREEMENT. 
 (a) Subject to the limitation set forth in Section 2(b) hereof and to the
provisions of Section 13 hereof, each Guarantor jointly and severally does hereby absolutely and unconditionally guarantee unto the Holders: (1) the full and prompt payment of the principal of, Make-Whole Amount, if any, and
interest on the Notes from time to time outstanding, as and when such payments shall become due and payable whether by lapse of time, upon redemption or prepayment, by extension or by acceleration or declaration or otherwise (including (to the
extent legally enforceable) interest due on overdue payments of principal, Make-Whole Amount, if any, or interest at the rate set forth in the Notes and interest accruing at the then applicable rate provided in the Notes after the filing of any
petition in bankruptcy, or the commencement of any insolvency, reorganization or like proceeding, relating to the Company, whether or not a claim for post-filing or post-petition interest is allowed in such proceeding) in Federal or other
immediately available funds of the United States of America which at the time of payment or demand therefor shall be legal tender for the payment of public and private debts, (2) the full and prompt performance and observance by the Company of
each and all of the obligations, covenants and agreements required to be performed or owed by the Company under the terms of the Notes and the Note Purchase Agreement and (3) the full and prompt payment, upon demand by any Holder, of all
reasonable actual out of pocket costs and expenses, legal or otherwise (including attorneys’ fees), if any, as shall have been expended or incurred in the protection or enforcement of any rights, privileges or liabilities in favor of the
Holders under or in respect of the Notes, the Note Purchase Agreement or under this Guaranty or in any consultation or action in connection therewith or herewith and in each and every case irrespective of the validity, regularity, or enforcement of
any of the Notes or the Note Purchase Agreement or any of the terms thereof or any other like circumstance or circumstances. 
 (b) The
liability of each Guarantor under this Guaranty shall not exceed an amount equal to a maximum amount as will, after giving effect to such maximum amount and all other liabilities of such Guarantor, contingent or otherwise, result in the obligations
of such Guarantor hereunder not constituting a fraudulent transfer, obligation or conveyance. 

  
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 SECTION 3. GUARANTY OF PAYMENT
AND PERFORMANCE. 
 This is a guaranty of payment and performance and each Guarantor hereby waives, to the
fullest extent permitted by law, any right to require that any action on or in respect of any Note or the Note Purchase Agreement be brought against the Company or any other Person or that resort be had to any direct or indirect security for the
Notes or for this Guaranty or any other remedy. Any Holder may, at its option, proceed hereunder against any Guarantor in the first instance to collect monies when due, the payment of which is guaranteed hereby, without first proceeding against the
Company or any other Person and without first resorting to any direct or indirect security for the Notes or for this Guaranty or any other remedy. The liability of each Guarantor hereunder shall in no way be affected or impaired by any acceptance by
any Holder of any direct or indirect security for, or other guaranties of, any Debt, liability or obligation of the Company or any other Person to any Holder or by any failure, delay, neglect or omission by any Holder to realize upon or protect any
such guaranties, Debt, liability or obligation or any notes or other instruments evidencing the same or any direct or indirect security therefor or by any approval, consent, waiver, or other action taken, or omitted to be taken by any such Holder.

 The covenants and agreements on the part of the Guarantors herein contained shall take effect as joint and several covenants and
agreements, and references to the Guarantors shall take effect as references to each of them and none of them shall be released from liability hereunder by reason of the guaranty ceasing to be binding as a continuing security on any other of them.

 SECTION 4. GENERAL PROVISIONS RELATING TO THE
GUARANTY. 
 (a) Each Guarantor hereby consents and agrees that any Holder or Holders from time to time, with or without any
further notice to or assent from any other Guarantor may, without in any manner affecting the liability of any Guarantor under this Guaranty, and upon such terms and conditions as any such Holder or Holders may deem advisable: 

(1) extend in whole or in part (by renewal or otherwise), modify, change, compromise, release or extend the duration of the
time for the performance or payment of any Debt, liability or obligation of the Company or of any other Person secondarily or otherwise liable for any Debt, liability or obligations of the Company on the Notes, or waive any Default with respect
thereto, or waive, modify, amend or change any provision of any other agreement or this Guaranty; or 
 (2) sell, release,
surrender, modify, impair, exchange or substitute any and all property, of any nature and from whomsoever received, held by, or for the benefit of, any such Holder as direct or indirect security for the payment or performance of any Debt, liability
or obligation of the Company or of any other Person secondarily or otherwise liable for any Debt, liability or obligation of the Company on the Notes; or 

  
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 (3) settle, adjust or compromise any claim of the Company against any other
Person secondarily or otherwise liable for any Debt, liability or obligation of the Company on the Notes. 
 Each Guarantor hereby ratifies
and confirms any such extension, renewal, change, sale, release, waiver, surrender, exchange, modification, amendment, impairment, substitution, settlement, adjustment or compromise and that the same shall be binding upon it, and hereby waives, to
the fullest extent permitted by law, any and all defenses, counterclaims or offsets which it might or could have by reason thereof, it being understood that such Guarantor shall at all times be bound by this Guaranty and remain liable hereunder.

 (b) Each Guarantor hereby waives, to the fullest extent permitted by law: 

(1) notice of acceptance of this Guaranty by the Holders or of the creation, renewal or accrual of any liability of the
Company, present or future, or of the reliance of such Holders upon this Guaranty (it being understood that every Debt, liability and obligation described in Section 2 hereof shall conclusively be presumed to have been created,
contracted or incurred in reliance upon the execution of this Guaranty); 
 (2) demand of payment by any Holder from the
Company or any other Person indebted in any manner on or for any of the Debt, liabilities or obligations hereby guaranteed; and 

(3) presentment for the payment by any Holder or any other Person of the Notes or any other instrument, protest thereof and
notice of its dishonor to any party thereto and to such Guarantor. 
 The obligations of each Guarantor under this Guaranty and the rights
of any Holder to enforce such obligations by any proceedings, whether by action at law, suit in equity or otherwise, shall not be subject to any reduction, limitation, impairment or termination (other than by payment in full of the Notes and the
obligations of the Company under the Note Purchase Agreement), whether by reason of any claim of any character whatsoever or otherwise and shall not be subject to any defense, set-off, counterclaim (other than any compulsory counterclaim),
recoupment or termination whatsoever. 
 (c) Subject to Section 13 hereof, the obligations of the Guarantors hereunder shall be
binding upon the Guarantors and their successors and assigns, and shall remain in full force and effect until the entire principal, interest and Make-Whole Amount, if any, on the Notes and all other sums due pursuant to Section 2 shall
have been paid and such obligations shall not be affected, modified or impaired upon the happening from time to time of any event, including without limitation any of the following, whether or not with notice to or the consent of the Guarantors:

 (1) the genuineness, validity, regularity or enforceability of the Notes, the Note Purchase Agreement or any other
agreement or any of the terms of any thereof, the continuance of any obligation on the part of the Company, any other Guarantors or any 

  
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other Person on or in respect of the Notes or under the Note Purchase Agreement or any other agreement or the power or authority or the lack of power or authority of the Company to issue the
Notes or the Company to execute and deliver the Note Purchase Agreement or any other agreement or of any other Guarantors to execute and deliver this Guaranty or any other agreement or to perform any of its obligations hereunder or the existence or
continuance of the Company or any other Person as a legal entity; or 
 (2) any default, failure or delay, willful or
otherwise, in the performance by the Company, any other Guarantor or any other Person of any obligations of any kind or character whatsoever under the Notes, the Note Purchase Agreement, this Guaranty or any other agreement; or 

(3) any creditors’ rights, bankruptcy, receivership or other insolvency proceeding of the Company, any other Guarantor or
any other Person or in respect of the property of the Company, any other Guarantor or any other Person or any merger, consolidation, reorganization, dissolution, liquidation, the sale of all or substantially all of the assets of or winding up of the
Company, any other Guarantor or any other Person; or 
 (4) impossibility or illegality of performance on the part of the
Company, any other Guarantor or any other Person of its obligations under the Notes, the Note Purchase Agreement, this Guaranty or any other agreements; or 

(5) in respect of the Company, any other Guarantors or any other Person, any change of circumstances, whether or not foreseen
or foreseeable, whether or not imputable to the Company, any other Guarantors or any other Person, or other impossibility of performance through fire, explosion, accident, labor disturbance, floods, droughts, embargoes, wars (whether or not
declared), civil commotion, acts of God or the public enemy, delays or failure of suppliers or carriers, inability to obtain materials, action of any Federal or state regulatory body or agency, change of law or any other causes affecting
performance, or any other force majeure, whether or not beyond the control of the Company, any other Guarantors or any other Person and whether or not of the kind hereinbefore specified; or 

(6) any attachment, claim, demand, charge, Lien, order, process, encumbrance or any other happening or event or reason, similar
or dissimilar to the foregoing, or any withholding or diminution at the source, by reason of any taxes, assessments, expenses, Debt, obligations or liabilities of any character, foreseen or unforeseen, and whether or not valid, incurred by or
against the Company, any Guarantor or any other Person or any claims, demands, charges or Liens of any nature, foreseen or unforeseen, incurred by the Company, any Guarantor or any other Person, or against any sums payable in respect of the Notes or
under the Note Purchase Agreement or this Guaranty, so that such sums would be rendered inadequate or would be unavailable to make the payments herein provided; or 

(7) any order, judgment, decree, ruling or regulation (whether or not valid) of any court of any nation or of any political
subdivision thereof or any body, agency, 

  
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department, official or administrative or regulatory agency of any thereof or any other action, happening, event or reason whatsoever which shall delay, interfere with, hinder or prevent, or in
any way adversely affect, the performance by the Company, any Guarantor or any other Person of its respective obligations under or in respect of the Notes, the Note Purchase Agreement, this Guaranty or any other agreement; or 

(8) the failure of any Guarantor to receive any benefit from or as a result of its execution, delivery and performance of this
Guaranty; or 
 (9) any failure or lack of diligence in collection or protection, failure in presentment or demand for
payment, protest, notice of protest, notice of default and of nonpayment, any failure to give notice to any Guarantor of failure of the Company, any Guarantor or any other Person to keep and perform any obligation, covenant or agreement under the
terms of the Notes, the Note Purchase Agreement, this Guaranty or any other agreement or failure to resort for payment to the Company, any other Guarantor or to any other Person or to any other guaranty or to any property, security, Liens or other
rights or remedies; or 
 (10) the acceptance of any additional security or other guaranty, the advance of additional money
to the Company or any other Person, the renewal or extension of the Notes or amendments, modifications, consents or waivers with respect to the Notes, the Note Purchase Agreement or any other agreement, or the sale, release, substitution or exchange
of any security for the Notes; or 
 (11) any merger or consolidation of the Company, any other Guarantor or any other Person
into or with any other Person or any sale, lease, transfer or other disposition of any of the assets of the Company, any other Guarantor or any other Person to any other Person, or any change in the ownership of any shares of the Company, any other
Guarantor or any other Person; or 
 (12) any defense whatsoever that: (i) the Company or any other Person might have to
the payment of the Notes (principal, Make-Whole Amount, if any, or interest), other than payment thereof in Federal or other immediately available funds, or (ii) the Company or any other Person might have to the performance or observance of any
of the provisions of the Notes, the Note Purchase Agreement or any other agreement, whether through the satisfaction or purported satisfaction by the Company, any other Guarantor or any other Person of its debts due to any cause such as bankruptcy,
insolvency, receivership, merger, consolidation, reorganization, dissolution, liquidation, winding-up or otherwise, other than the defense of indefeasible payment in full in cash of the Notes; or 

(13) any act or failure to act with regard to the Notes, the Note Purchase Agreement, this Guaranty or any other agreement or
anything which might vary the risk of any Guarantor or any other Person; or 

  
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 (14) any other circumstance which might otherwise constitute a defense available
to, or a discharge of, any Guarantor or any other Person in respect of the obligations of any Guarantor or other Person under this Guaranty or any other agreement, other than the defense of indefeasible payment in full in cash of the Notes; 

provided that the specific enumeration of the above-mentioned acts, failures or omissions shall not be deemed to exclude any other acts, failures or
omissions, though not specifically mentioned above, it being the purpose and intent of this Guaranty and the parties hereto that the obligations of each Guarantor shall be absolute and unconditional and shall not be discharged, impaired or varied
except pursuant to Section 13 hereof and by the payment of the principal of, Make-Whole Amount, if any, and interest on the Notes in accordance with their respective terms whenever the same shall become due and payable as in the Notes
provided and all other sums due and payable under the Note Purchase Agreement, at the place specified in and all in the manner and with the effect provided in the Notes and the Note Purchase Agreement, as each may be amended or modified from time to
time. Without limiting the foregoing, it is understood that repeated and successive demands may be made and recoveries may be had hereunder as and when, from time to time, the Company shall default under or in respect of the terms of the Notes or
the Note Purchase Agreement and that notwithstanding recovery hereunder for or in respect of any given default or defaults by the Company under the Notes or the Note Purchase Agreement, this Guaranty shall remain in full force and effect and shall
apply to each and every subsequent default. 
 (d) All rights of any Holder may be transferred or assigned at any time and shall be
considered to be transferred or assigned at any time or from time to time upon the transfer of such Note in accordance with the Note Purchase Agreement whether with or without the consent of or notice to the Guarantors under this Guaranty or to the
Company. 
 (e) To the extent of any payments made under this Guaranty, the Guarantors shall be subrogated to the rights of the Holder or
Holders upon whose Notes such payment was made, but each Guarantor covenants and agrees that such right of subrogation shall be junior and subordinate in right of payment to the prior indefeasible final payment in cash in full of all amounts due and
owing by the Company with respect to the Notes and the Note Purchase Agreement and by the Guarantors under this Guaranty, and the Guarantors shall not take any action to enforce such right of subrogation, and the Guarantors shall not accept any
payment in respect of such right of subrogation, until all amounts due and owing by the Company under or in respect of the Notes and the Note Purchase Agreement and all amounts due and owing by the Guarantors hereunder have indefeasibly been finally
paid in cash in full. If any amount shall be paid to any Guarantor in violation of the preceding sentence at any time prior to the indefeasible payment in cash in full (or other satisfaction agreed to by the Holders) of the Notes and all other
amounts payable under the Notes, the Note Purchase Agreement and this Guaranty, such amount shall be held in trust for the benefit of the Holders and shall, except to the extent the Holders have received payment, promptly be paid to the Holders to
be credited and applied to the amounts due or to become due with respect to the Notes and all other amounts payable under the Note Purchase Agreement and this Guaranty, whether matured or unmatured. Each Guarantor acknowledges that it has received
direct and indirect benefits from the financing arrangements contemplated by the Note Purchase Agreement and that the waiver set forth in this paragraph (e) is knowingly made as a result of the receipt of such benefits. 

  
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 (f) To the extent of any payments made under this Guaranty, each Guarantor making such payment
shall have a right of contribution from the other Guarantors, but such Guarantor covenants and agrees that such right of contribution shall be subordinate in right of payment to the rights of the Holders for which full payment has not been made or
provided for and, to that end, such Guarantor agrees not to claim or enforce any such right of contribution unless and until all of the Notes and all other sums due and payable under the Note Purchase Agreement have been fully and irrevocably paid
and discharged. 
 (g) Each Guarantor agrees that to the extent the Company, any other Guarantor or any other Person makes any payment on
any Note, which payment or any part thereof is subsequently invalidated, voided, declared to be fraudulent or preferential, set aside, recovered, rescinded, or otherwise defeased or is required to be retained by or repaid to a trustee, receiver, or
any other Person under any bankruptcy code, common law, or equitable cause, then and to the extent of such payment, the obligation or the part thereof intended to be satisfied shall be revived and continued in full force and effect with respect to
the Guarantors’ obligations hereunder, as if said payment had not been made. The liability of the Guarantors hereunder shall not be reduced or discharged, in whole or in part, by any payment to any Holder from any source that is thereafter
paid, returned or refunded in whole or in part by reason of the assertion of a claim of any kind relating thereto, including, but not limited to, any claim for breach of contract, breach of warranty, preference, illegality, invalidity, or fraud
asserted by any account debtor or by any other Person. 
 (h) No Holder shall be under any obligation: (1) to marshal any assets in
favor of the Guarantors or in payment of any or all of the liabilities of the Company under or in respect of the Notes or the obligations of the Guarantors hereunder or (2) to pursue any other remedy that the Guarantors may or may not be able
to pursue themselves and that may lighten the Guarantors’ burden, any right to which each Guarantor hereby expressly waives. 
 (i) The
obligations of each Guarantor under this Guaranty rank pari passu in right of payment with all other Debt of such Guarantor which is not secured or which is not expressly subordinated in right of payment to any other unsecured Debt of such
Guarantor. 
 SECTION 5. REPRESENTATIONS AND WARRANTIES OF
THE GUARANTORS. 
 Each Guarantor represents and warrants to each Holder that: 

(a) Such Guarantor is a corporation or other legal entity duly organized, validly existing and in good standing under the laws of its
jurisdiction of organization (if applicable), and is duly qualified as a foreign corporation or other legal entity and is in good standing in each jurisdiction in which such qualification is required by law, other than those jurisdictions as to
which the failure to be so qualified or in good standing would not, individually or in the aggregate, reasonably be expected to have a material adverse effect on (1) the business, operations, affairs, financial condition, assets or properties
of the Company and its subsidiaries, taken as a whole, or 

  
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(2) the ability of such Guarantor to perform its obligations under this Guaranty, or (3) the validity or enforceability of this Guaranty. Such Guarantor has the power and authority to
own or hold under lease the properties it purports to own or hold under lease, to transact the business it transacts and proposes to transact, to execute and deliver this Guaranty and to perform the provisions hereof. 

(b) This Guaranty has been duly authorized by all necessary action on the part of such Guarantor, and upon execution and delivery of this
Guaranty and of the Note Purchase Agreement and receipt of consideration for the Note Purchase Agreement and the Notes, this Guaranty will constitute a legal, valid and binding obligation of such Guarantor enforceable against such Guarantor in
accordance with its terms, except as such enforceability may be limited by (1) applicable bankruptcy, insolvency, reorganization, moratorium or other similar laws affecting the enforcement of creditors’ rights generally and
(2) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 
 (c)
The execution, delivery and performance by such Guarantor of this Guaranty will not (1) contravene, result in any breach of, or constitute a default under, or result in the creation of any Lien in respect of any property of such Guarantor under
any indenture, mortgage, deed of trust, loan, purchase or credit agreement, lease, charter document or by-law, or any other material agreement or instrument to which such Guarantor is bound or by which such Guarantor or any of its properties may be
bound or affected, (2) conflict with or result in a breach of any of the terms, conditions or provisions of any order, judgment, decree, or ruling of any court, arbitrator or Governmental Authority applicable to such Guarantor or
(3) violate any provision of any statute or other rule or regulation of any Governmental Authority applicable to such Guarantor. 

(d) No consent, approval or authorization of, or registration, filing or declaration with, any Governmental Authority by the Guarantor is
required in connection with the execution, delivery or performance by such Guarantor of this Guaranty. 
 (e) Such Guarantor on a
consolidated basis has capital not unreasonably small in relation to its business or any contemplated or undertaken transaction and has assets having a value both at fair valuation and at present fair salable value greater than the amount required
to pay its debts as they become due and greater than the amount that will be required to pay its probable liability on its existing debts as they become absolute and matured. Such Guarantor does not intend to incur or believe that it will incur,
debts beyond its ability to pay such debts as they become due. Such Guarantor will not be rendered insolvent by the execution and delivery of, and performance of its obligations under, this Guaranty. Such Guarantor does not intend to hinder, delay
or defraud its creditors by or through the execution and delivery of, or performance of its obligations under, this Guaranty. 

SECTION 6. GUARANTOR COVENANTS. 

From and after the date hereof and continuing so long as any amount on the Notes remains unpaid (i) each Guarantor (other than the
Reporting Entity) agrees to comply with the terms and provisions of Sections 9.1, 9.2, 9.3, 9.4 and 9.5 of the Note Purchase Agreement, 

  
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insofar as such provisions apply to such Guarantor, as if such provisions referred to such Guarantor, and (ii) the Reporting Entity agrees to comply with the terms and provisions of the Note
Purchase Agreement, insofar as such provisions apply to the Reporting Entity. 
 SECTION 7. PAYMENTS FREE
AND CLEAR OF TAXES. 
 Each payment by a Foreign Guarantor shall be made, under
all circumstances, without reduction for, and free from and clear of, and without deduction or withholding for or because of, any and all present or future taxes, levies, imposts, duties or similar governmental assessments and charges (but not
including, for the avoidance of doubt, any taxes, levies, imposts, duties or other governmental assessments or charges imposed on or measured by reference to the income, receipts or gains of the relevant Holder, or any branch profits taxes, or any
taxes, levies, imposts, duties or other governmental assessments or charges imposed as a result of a present or former connection of the relevant Holder with the jurisdiction imposing such tax, levy, impost, duty or other governmental assessment or
charge) imposed, levied, collected, assessed, or required to be deducted or withheld by the government of any country or jurisdiction (or any authority therein or thereof), other than the United States of America or any political subdivision or
authority therein or thereof, from which payments hereunder or on or in respect of the Notes are actually made (hereinafter called “Non-U.S. Taxes”), unless such imposition, levy, collection, assessment, deduction or withholding is
required by law. If a Foreign Guarantor is required by law to make any payment pursuant to this Guaranty subject to such deduction or withholding, then such Guarantor shall forthwith (a) pay over to the government or taxing authority imposing
such tax the full amount required to be so deducted or withheld (including the full amount required to be deducted or withheld from or otherwise paid by such Guarantor in respect of the Tax Indemnity Amounts (as defined below)), and (b) pay
each Holder such additional amounts (“Tax Indemnity Amounts”) as may be necessary in order that the net amount of every payment made to each Holder, after provision for payment of such Non-U.S. Taxes (including any required
deduction, withholding or other payment of tax on or with respect to such Tax Indemnity Amounts), shall be equal to the amount which such Holder would have received had there been no deduction or withholding. Notwithstanding the provisions of this
Section 7, no such Tax Indemnity Amounts shall be payable for or on account of any tax, levy, impost, duty, assessment or other governmental charge that is imposed or withheld by reason of the failure of the Holder to complete, execute
and deliver to such Guarantor any form or document to the extent applicable to such Holder that would enable such Guarantor to make payments pursuant to this Section 7 in the Guaranty without, or at a reduced rate of, deduction or
withholding for taxes, levies, imposts, duties, assessments or governmental charges, which form or document shall be delivered prior to the making of any payment by such Guarantor hereunder, and in any event within twenty days of a written request
therefor by such Guarantor (and any such Holder shall promptly provide such updated forms or documents in the event forms or documents previously submitted by such Holder become inaccurate or obsolete). Notwithstanding anything to the contrary
herein, Tax Indemnity Amounts shall be payable pursuant to this Section 7 only to the extent that the net amount that would otherwise be received by a Holder with respect to a payment by a Foreign Guarantor pursuant to this Guaranty,
after such Foreign Guarantor has deducted or withheld any Non-U.S. Taxes as required by law, is less than the net amount such Holder would have received had such payment been made by the Company on the applicable Notes. 

  
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 SECTION 8. GOVERNING LAW. 

(a) THIS GUARANTY SHALL BE GOVERNED BY
AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW
YORK APPLICABLE THEREIN. 
 (b) Each Guarantor hereby (1) irrevocably submits and consents
to the jurisdiction of the federal court located within the County of New York, State of New York (or if such court lacks jurisdiction, the State courts located therein), and irrevocably agrees that all actions or proceedings relating to this
Guaranty may be litigated in such courts, and (2) waives any objection which it may have based on improper venue or forum non conveniens to the conduct of any proceeding in any such court and waives personal service of any and all
process upon it, and (3) consents that all such service of process be made by delivery to it at the address of such Person set forth in Section 11 below or to its agent referred to below at such agent’s address set forth below
(with a courtesy copy to such Guarantor at the address set forth in Section 11) and that service so made shall be deemed to be completed upon actual receipt. Each Guarantor hereby irrevocably appoints the Company, as its agent for the
purpose of accepting service of any process. In the event the Company (or any successor thereto) shall in accordance with the terms of the Note Purchase Agreement be organized under the laws of any jurisdiction other than any state of the United
States or the District of Columbia, each Guarantor agrees it shall irrevocably appoint CT Corporation System, with an office on the date hereof at 111 Eighth Avenue, New York, New York 10011, as its agent for the purpose of accepting service of any
process within the State of New York. Nothing contained in this section shall affect the right of any Holder to serve legal process in any other manner permitted by law or to bring any action or proceeding in the courts of any jurisdiction against a
Guarantor or to enforce a judgment obtained in the courts of any other jurisdiction. 
 (c) The parties hereto waive any right to have a
jury participate in resolving any dispute, whether sounding in contract, tort, or otherwise, between them arising out of, connected with, related to or incidental to the relationship established between them in connection with this Guaranty, any
financing agreement, any loan party document or any other instrument, document or agreement executed or delivered in connection herewith or the transactions related hereto. The parties hereto hereby agree and consent that any such claim, demand,
action or cause of action shall be decided by court trial without a jury and that any of them may file an original counterpart or a copy of this Guaranty with any court as written evidence of the consent of the parties hereto to the waiver of their
right to trial by jury. 
 SECTION 9. CURRENCY OF PAYMENTS, INDEMNIFICATION.

 Any payment made by a Guarantor to any Holder for the account of any such Holder in respect of any amount payable by a Guarantor shall be
made in the lawful currency of the United States of America (“U.S. Dollars”). Any amount received or recovered by such Holder other than in U.S. Dollars (whether as a result of, or of the enforcement of, a judgment or order of
any court, or in the liquidation or dissolution of a Guarantor or otherwise) in respect of any such sum expressed to be due hereunder or under the Notes shall constitute a discharge of a Guarantor only to the extent of the amount of
U.S. Dollars which such Holder is able, in accordance with normal banking procedures, to purchase with the amount so received or recovered in that other currency 

  
 11 

 
on the date of the receipt or recovery (or, if it is not practicable to make that purchase on such date, on the first date on which it is practicable to do so). If the amount of U.S. Dollars so
purchased is less than the amount of U.S. Dollars expressed to be due hereunder or under the Notes, such Guarantor agrees as a separate and independent obligation from the other obligations herein, notwithstanding any such judgment, to
indemnify the Holder against the loss. If the amount of U.S. Dollars so purchased exceeds the amount of U.S. Dollars expressed to be due hereunder or under the Notes, then such Holder agrees to promptly remit such excess to such Guarantor. 

SECTION 10. AMENDMENTS, WAIVERS AND CONSENTS. 

(a) This Guaranty may be amended, and the observance of any term hereof may be waived (either retroactively or prospectively), with (and only
with) the written consent of each Guarantor and the Required Holders; provided, that without the written consent of all of the Holders, no such waiver, modification, alteration or amendment shall be effective which will reduce the scope of
the guaranty set forth in this Guaranty, amend any of the terms or provisions of Section 2 or 6 hereof or amend this Section 10. No such amendment or modification shall extend to or affect any obligation not expressly
amended or modified or impair any right consequent thereon. 
 (b) The Guarantors will provide each Holder (irrespective of the amount of
Notes then owned by it) with sufficient information, sufficiently far in advance of the date a decision is required, to enable such Holder to make an informed and considered decision with respect to any proposed amendment, waiver or consent in
respect of any of the provisions hereof. The Guarantors will deliver executed or true and correct copies of each amendment, waiver or consent effected pursuant to the provisions of this Section 10 to each Holder promptly following the
date on which it is executed and delivered by, or receives the consent or approval of, the requisite Holders. 
 (c) The Company will not
directly or indirectly pay or cause to be paid any remuneration, whether by way of fee or otherwise, or grant any security, to any Holder as consideration for or as an inducement to the entering into by any Holder of any waiver or amendment of any
of the terms and provisions hereof unless such remuneration is concurrently paid, or security is concurrently granted, on the same terms, ratably to each Holder even if such Holder did not consent to such waiver or amendment. 

(d) Any amendment or waiver consented to as provided in this Section 10 applies equally to all Holders and is binding upon them
and upon each future holder and upon the Guarantors. No such amendment or waiver will extend to or affect any obligation, covenant or agreement not expressly amended or waived or impair any right consequent thereon. No course of dealing between the
Guarantors and any Holder nor any delay in exercising any rights hereunder shall operate as a waiver of any rights of any Holder. As used herein, the term “this Guaranty” and references thereto shall mean this Guaranty as it may from time
to time be amended or supplemented. 

  
 12 

 (e) Solely for the purpose of determining whether the Holders of the requisite percentage of the
aggregate principal amount of Notes then outstanding approved or consented to any amendment, waiver or consent to be given under this Guaranty, Notes directly or indirectly owned by any Guarantor, the Company or any of their respective subsidiaries
or Affiliates shall be deemed not to be outstanding. 
 SECTION 11. NOTICES. 

All notices and communications provided for hereunder shall be in writing and sent (a) electronically (including by telefacsimile if the
sender on the same day sends a confirming copy of such notice by a recognized overnight delivery service (charges prepaid) or e-mail) or (b) by registered or certified mail with return receipt requested (postage prepaid), or (c) by a
recognized overnight delivery service (with charges prepaid). Any such notice must be sent: 
 (1) if to a Holder listed on
Schedule A of the Note Purchase Agreement or such Holder’s nominee, to such Holder or such Holder’s nominee at the address specified for such communications on Schedule A, or at such other address as such Holder or such Holder’s
nominee shall have specified to any Guarantor or the Company in writing, 
 (2) if to any other Holder, to such Holder at
such address as such Holder shall have specified to any Guarantor or the Company in writing, or 
 (3) if to any Guarantor,
to such Guarantor c/o the Company at its address set forth at the beginning of the Note Purchase Agreement to the attention of Corporate Treasurer, or at such other address as such Guarantor shall have specified to the Holders in writing. 

Notices under this Section 11 will be deemed given only when actually received. Notices and other communications sent electronically shall be
deemed received on the day such notices or other communications are sent unless such notice or other communication is not sent during the normal business hours of the recipient, in which case such notice or communication shall be deemed to have been
sent at the opening of business on the next business day. 
 SECTION 12. MISCELLANEOUS. 

(a) No remedy herein conferred upon or reserved to any Holder is intended to be exclusive of any other available remedy or remedies, but each
and every such remedy shall be cumulative and shall be in addition to every other remedy given under this Guaranty now or hereafter existing at law or in equity. No delay or omission to exercise any right or power accruing upon any default, omission
or failure of performance hereunder shall impair any such right or power or shall be construed to be a waiver thereof but any such right or power may be exercised from time to time and as often as may be deemed expedient. In order to entitle any
Holder to exercise any remedy reserved to it under the Guaranty, it shall not be necessary for such Holder to physically produce its Note in any proceedings instituted by it or to give any notice, other than such notice as may be herein expressly
required. 

  
 13 

 (b) The Guarantors will pay all sums becoming due under this Guaranty by the method and at the
address specified in the Note Purchase Agreement, or by such other method or at such other address as any Holder shall have from time to time specified to the Guarantors in writing for such purpose, without the presentation or surrender of this
Guaranty or any Note. 
 (c) Any provision of this Guaranty that is prohibited or unenforceable in any jurisdiction shall, as to such
jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or unenforceability in any jurisdiction shall (to the full extent permitted by law) not
invalidate or render unenforceable such provision in any other jurisdiction. 
 (d) If the whole or any part of this Guaranty shall be now
or hereafter become unenforceable against any one or more of the Guarantors for any reason whatsoever or if it is not executed by any one or more of the Guarantors, this Guaranty shall nevertheless be and remain fully binding upon and enforceable
against each other Guarantor as if it had been made and delivered only by such other Guarantors. 
 (e) This Guaranty shall be binding upon
each Guarantor and its successors and assigns and shall inure to the benefit of each Holder and its successors and assigns so long as its Notes remain outstanding and unpaid. 

(f) This Guaranty may be executed in any number of counterparts, each of which shall be an original but all of which together shall constitute
one instrument. Each counterpart may consist of a number of copies hereof, each signed by less than all, but together signed by all, of the parties hereto. 

SECTION 13. RELEASE. 

Notwithstanding anything that may be contained herein to the contrary, the Holders agree that, in accordance with, and pursuant to the
requirements of, Section 2.2(e) of the Note Purchase Agreement, this Guaranty (other than, if New Steris Limited is the Reporting Entity, with respect to New Steris Limited) shall be automatically released and discharged without the necessity
of further action on the part of the Holders if, and to the extent, the corresponding guaranty given pursuant to the terms of each Material Credit Facility is released and discharged; provided that in the event the Guarantor shall again
become obligated under or with respect to the previously discharged Guaranty pursuant to the terms and provisions of the Note Purchase Agreement, then the obligations of such Guarantor under this Guaranty shall be reinstated and any release thereof
previously given shall be deemed null and void, and such Guaranty shall again benefit the Holders on an equal and pro rata basis. Any release by the Holders shall be deemed to have occurred concurrently with the release and discharge under
the Material Credit Facilities. The Company shall promptly notify the Holders of any release of a Affiliate Guaranty pursuant to this Section 13 and shall deliver evidence of any release or discharge of a guaranty or Lien in customary
form. 
 [Intentionally Blank] 

  
 14 

 IN WITNESS WHEREOF, the undersigned has caused this
Affiliate Guaranty to be duly executed by an authorized representative as of the date hereof. 
  

			
	 AMERICAN STERILIZER COMPANY

INTEGRATED MEDICAL SYSTEMS INTERNATIONAL, INC.

STERIS EUROPE, INC.
 STERIS
INC.
 UNITED STATES ENDOSCOPY GROUP, INC.

		
	By:		 /s/ Michael J. Tokich

	Name:		Michael J. Tokich
	Title:		President
	
	 ISOMEDIX INC.

ISOMEDIX OPERATIONS INC.

		
	By:		 /s/ Michael J. Tokich

	Name:		Michael J. Tokich
	Title:		Vice President and Secretary

  
 [Signature Page to
Affiliate Guaranty – 2003] 

 
			
	ACCEPTED AND AGREED:
	
	STERIS CORPORATION
		
	By:		 /s/ Michael J. Tokich

	Name:		Michael J. Tokich
	Title:		 Senior Vice President, Chief
 Financial
Officer and Treasurer

  
 [Signature Page to
Affiliate Guaranty – 2003] 

 GUARANTY SUPPLEMENT 

To the Holders of the Series A-3 Notes (as 

    hereinafter defined) of STERIS Corporation 

    (the “Company”) 
 Ladies
and Gentlemen: 
 WHEREAS, in order to refinance certain debt and for general corporate purposes, the Company entered into
those certain Note Purchase Agreements dated as of December 17, 2003 (as amended, the “Original Note Purchase Agreements”) between the Company and each of the purchasers party thereto (together with their successors and
assigns, the “Original Holders”), providing for, inter alia, the issue and sale by the Company of: (a) $40,000,000 aggregate principal amount of its 4.20% Senior Notes,
Series A-1, due December 15, 2008 (the “Series A-1 Notes”), (b) $40,000,000 aggregate principal amount of its 5.25% Senior Notes,
Series A-2, due December 15, 2013 (the “Series A-2 Notes”), and (c) $20,000,000 aggregate principal amount of its 5.38% Senior Notes, Series A-3, due December 15, 2015 (the “Series A-3 Notes,” the Series A-1 Notes, Series A-2 Notes and Series A-3 Notes shall be collectively referred to herein to the “Original Series A Notes”). 

WHEREAS, the Company and the Holders agreed to (i) enter into that certain Second Amendment dated as of
            , 2015 to the Original Note Purchase Agreements (the “Second Amendment”), pursuant to which the Amended and Restated Note Purchase Agreement dated as of
            , 2015 between the Company and the Noteholders (as defined therein) (the “Note Purchase Agreement”) shall replace the Original Note Purchase Agreement and
(ii) replace the outstanding Original Series A Notes with amended and restated notes (the “Notes”). Each holder of the Notes shall be referred to as a “Holder”. 

WHEREAS, as a condition precedent to the entering into the Note Purchase Agreement by the Holders, the Holders required that
certain affiliates of the Company enter into an Affiliate Guaranty as security for the Notes (the “Guaranty”). 
 Pursuant
to Section 9.7 of the Note Purchase Agreement, the Company has agreed to cause the undersigned,                     , a
                     organized under the laws of
                     (the “Additional Guarantor”), to join in the Guaranty. In accordance with the requirements of the Guaranty, the
Additional Guarantor desires to amend the definition of Guarantor (as the same may have been heretofore amended) set forth in the Guaranty attached hereto so that at all times from and after the date hereof, the Additional Guarantor shall be jointly
and severally liable as set forth in the Guaranty for the obligations of the Company under the Note Purchase Agreement and Notes to the extent and in the manner set forth in the Guaranty. 

The undersigned is the duly elected
                     of the Additional Guarantor, a subsidiary of the Company, and is duly authorized to execute and deliver this Guaranty Supplement
to each of you. The execution by the undersigned of this Guaranty Supplement shall evidence its consent to and acknowledgment and approval of the terms set forth herein and in the Guaranty and by such execution the Additional Guarantor shall be
deemed to have made in favor of the Holders the representations and warranties set forth in Section 5 of the Guaranty. 

  
 - S - 1 - 

 [The Additional Guarantor hereby irrevocably appoints CT Corporation System, with an office on
the date hereof at 111 Eighth Avenue, New York, New York 10011, as its agent for the purpose of accepting service of any process within the State of New York.] [THE FOREGOING TO BE
ADDED ONLY IF EACH OF THE ADDITIONAL GUARANTORS AND THE COMPANY IS
A FOREIGN GUARANTOR] 
 Upon execution of this Guaranty Supplement, the Guaranty shall be
deemed to be amended as set forth above. Except as amended herein, the terms and provisions of the Guaranty are hereby ratified, confirmed and approved in all respects. 

  
 - S - 2 - 

 Any and all notices, requests, certificates and other instruments (including the Notes) may refer
to the Guaranty without making specific reference to this Guaranty Supplement, but nevertheless all such references shall be deemed to include this Guaranty Supplement unless the context shall otherwise require. 

Dated:             ,         . 

 

			
	[NAME OF ADDITIONAL GUARANTOR]
		
	By:		  

			Its
	
	ACCEPTED AND AGREED:
	
	STERIS CORPORATION
		
	By:		  

	Name:		  

	Title:		  

  
 - S - 3 -EX-10.5

 Exhibit 10.5 

EXECUTION VERSION 
  

 
  

STERIS CORPORATION 
  

 

FIRST AMENDMENT 

Dated as of MARCH 31, 2015 

to 
 NOTE
PURCHASE AGREEMENTS 
 Dated as of AUGUST 15, 2008 

 
  

Re:        $85,000,000 6.33% Senior Notes, Series A-2, due
August 15, 2018 
              $35,000,000 6.43% Senior Notes, Series A-3, due August 15, 2020 
  

 
  

 FIRST AMENDMENT TO NOTE
PURCHASE AGREEMENTS 
 THIS FIRST AMENDMENT dated as of
March 31, 2015 (the “First Amendment”) to the Note Purchase Agreements dated as of August 15, 2008 is between STERIS Corporation, an Ohio corporation (the “Company”) and each of the institutions which is a
signatory to this First Amendment (collectively, the “Noteholders”). 
 R E C
I T A L S: 
 A. The Company and
AMERICAN UNITED LIFE INSURANCE COMPANY, PIONEER MUTUAL LIFE INSURANCE COMPANY, THE
STATE LIFE INSURANCE COMPANY, AXA EQUITABLE LIFE INSURANCE COMPANY, KNIGHTS OF
COLUMBUS, METLIFE INSURANCE COMPANY USA (F/K/A METLIFE INSURANCE
COMPANY OF CONNECTICUT), METROPOLITAN LIFE INSURANCE COMPANY, MODERN WOODMEN OF
AMERICA, THE PRUDENTIAL INSURANCE COMPANY OF AMERICA, PRUDENTIAL RETIREMENT INSURANCE
AND ANNUITY COMPANY, THE NORTHWESTERN MUTUAL LIFE INSURANCE COMPANY, STATE FARM
LIFE INSURANCE COMPANY AND THE LAFAYETTE LIFE INSURANCE COMPANY have heretofore entered into the Note Purchase
Agreements dated as of August 15, 2008 (the “Note Purchase Agreements”; as amended and restated as of the date hereof pursuant to this First Amendment, the “Amended and Restated Note Purchase Agreements”). The
Company has heretofore issued (a) $30,000,000 aggregate principal amount of its 5.63% Senior Notes, Series A-1, due August 15, 2013 (the
“Series A-1 Notes”), (b) $85,000,000 aggregate principal amount of its 6.33% Senior Notes, Series A-2, due August 15, 2018 (the
“Series A-2 Notes”) and (c) $35,000,000 aggregate principal amount of its 6.43% Senior Notes, Series A-3, due August 15, 2020
(the “Series A-3 Notes”; the Series A-1 Notes, Series A-2 Notes and Series A-3 Notes are hereinafter referred to as the “Notes”), dated August 15, 2008 pursuant to the Note Purchase Agreements. Only the
Series A-2 and Series A-3 Notes remain outstanding. The Noteholders hold 100% of the outstanding principal amount of the Notes. 

B. The Company and the Noteholders now desire to amend and restate the Note Purchase Agreements in their entirety. 

C. Capitalized terms used herein shall have the respective meanings ascribed thereto in the Amended and Restated Note Purchase Agreement
unless herein defined or the context shall otherwise require. 
 D. All requirements of law have been fully complied with and all other acts
and things necessary to make this First Amendment a valid, legal and binding instrument according to its terms for the purposes herein expressed have been done or performed. 

NOW, THEREFORE, upon the full and complete satisfaction of the conditions precedent to the effectiveness of this
First Amendment set forth in Section 2.1 hereof, and in consideration of 

 
good and valuable consideration the receipt and sufficiency of which is hereby acknowledged, the Company and the Noteholders do hereby agree as follows: 

SECTION 1. AMENDMENTS AND WAIVERS. 

Section 1.1. The Note Purchase Agreements shall be and hereby are amended and restated in their entirety as attached hereto as
Exhibit 1.1 as of the Effective Date (as defined below). 
 Section 1.2. For the avoidance of doubt and for the benefit
of the other the Senior Note Holders (as defined in the Intercreditor Agreement) and other parties thereto, the Intercreditor Agreement, dated as of August 15, 2008, among the holders of notes party thereto, KeyBank National
Association, as Credit Agreement Agent, and Keybank National Association, as Collateral Agent, shall be and hereby is terminated with respect to the Noteholders. 

SECTION 2. CONDITIONS TO EFFECTIVENESS OF THIS
FIRST AMENDMENT. 
 Section 2.1. This First Amendment shall become effective on the date that the
following conditions have been satisfied or waived (the “Effective Date”): 
 (a) the Noteholders (or their
special counsel) shall have received executed counterparts of this First Amendment, duly executed by the Company; 
 (b) the
Noteholders (or their special counsel) shall have received executed Amended Notes, duly executed by the Company; 
 (c) the
Noteholders (or their special counsel) shall have received executed counterparts of the Affiliate Guaranty, duly executed by the Company and the Guarantors; 

(d) the Company shall have paid each Noteholder an amount equal to 0.25% of the principal amount of the Notes held by such
Noteholder; provided that the Noteholders (or their special counsel) shall have provided wire transfer instructions to the Company at least 3 Business Days prior to the Effective Date; 

(e) the Noteholders (or their special counsel) shall have received: 

(i) An Officer’s Certificate, dated the Effective Date, certifying that (i) the representations and warranties of the
Company in Section 3 of this First Amendment and in Section 5 of the Amended and Restated Note Purchase Agreement are correct as of the Effective Date (or if such representation or warranty is expressly stated to have been made as
of a specific date, as of such specific date), (ii) the Company shall have performed and complied with all material agreements and conditions contained in this First Amendment and (iii) after giving effect to the issue of the Amended
Notes, no Default or Event of Default shall have occurred and be continuing; and 
 (ii) Copies of the resolutions of the
board of directors of the Company authorizing the execution, delivery and performance by the Company of its obligations under this First Amendment, the Amended and Restated Note Purchase Agreement and the Amended Notes, certified by its Secretary or
an Assistant Secretary; and 

  
 - 2 - 

 (iii) A good standing certificate or similar certificate dated a date reasonably
close to the Effective Date from the jurisdiction of formation of the Company; and 
 (iv) A customary certificate of the
Company certifying the names and true signatures of the officers of the Company, as applicable, authorized to sign this First Amendment and the other documents to be delivered hereunder; and 

(v) A certificate of an officer of each Guarantor, dated the Effective Date, certifying that (i) the representations and
warranties of such Guarantor in Section 5 of the Affiliate Guaranty is correct as of the Effective Date, and (ii) such Guarantor shall have performed and complied with all material agreements and conditions contained in this First
Amendment; and 
 (vi) Copies of the resolutions of the board of directors of each Guarantor authorizing the execution,
delivery and performance by such Guarantor of its obligations under the Affiliate Guaranty, certified by its Secretary or an Assistant Secretary; and 

(vii) A good standing certificate or similar certificate dated a date reasonably close to the Effective Date from the
jurisdiction of formation of each Guarantors, if applicable; and 
 (viii) A customary certificate of each Guarantor
certifying the names and true signatures of the officers of such Guarantor, as applicable, authorized to sign the Affiliate Guaranties and the other documents to be delivered hereunder; and 

(ix) A favorable opinion letter of (A) the General Counsel of the Company and the Guarantors or (B) legal counsel to
the Company and the Guarantors in form and substance reasonably satisfactory to the Noteholders (or their special counsel); and 

(x) copies of the forms of (A) the Bank Credit Agreement, attached hereto as Exhibit 1.2, (B) the Second
Amendment to the 2003 Note Purchase Agreements, attached hereto as Exhibit 1.3 and (C) the First Amendment to the 2012 Note Purchase Agreements, attached hereto as Exhibit 1.4, and 

(f) the Noteholders (or the special counsel) shall have received a copy of the form of payoff letter from KeyBank National
Association evidencing the termination of the Intercreditor Agreement. 

  
 - 3 - 

 SECTION 3. REPRESENTATIONS AND WARRANTIES
OF THE COMPANY. 
 Section 3.1. To induce the Noteholders to execute and deliver
this First Amendment (which representations shall survive the execution and delivery of this First Amendment), the Company represents and warrants to the Noteholders that: 

(a) this First Amendment has been duly authorized, executed and delivered by it and this First Amendment, upon execution and
delivery by the Noteholders, constitutes the legal, valid and binding obligation, contract and agreement of the Company enforceable against it in accordance with its terms, except as enforcement may be limited by bankruptcy, insolvency,
reorganization, moratorium or similar laws or equitable principles relating to or limiting creditors’ rights generally; 

(b) the execution, delivery and performance by the Company of this First Amendment (i) has been duly authorized by all
requisite corporate action, (ii) does not require the consent or approval of any governmental or regulatory body or agency, and (iii) will not (A) violate (1) any provision of law, statute, rule or regulation or its certificate
of incorporation or bylaws, (2) any order of any court or any rule, regulation or order of any other agency or government binding upon it, or (3) any provision of any material indenture, agreement or other instrument to which it is a party
or by which its properties or assets are or may be bound, or (B) result in a breach or constitute (alone or with due notice or lapse of time or both) a default under any indenture, agreement or other instrument referred to in clause (iii)(A)(3)
of this Section 3.1(b); and 
 (c) prior to and immediately after giving effect to this First Amendment, no
Default or Event of Default has occurred and is continuing. 
 SECTION 4. MISCELLANEOUS. 

Section 4.1. All terms, conditions and covenants contained in the Note Purchase Agreements and Original Series A Notes are hereby
superseded by the Amended and Restated Note Purchase Agreement and Amended Notes, as applicable. 
 Section 4.2. Any and all
notices, requests, certificates and other instruments executed and delivered after the execution and delivery of this First Amendment may refer to the Amended and Restated Note Purchase Agreement without making specific reference to this First
Amendment but nevertheless all such references shall include this First Amendment unless the context otherwise requires. 

Section 4.3. The descriptive headings of the various Sections or parts of this First Amendment are for convenience only and shall
not affect the meaning or construction of any of the provisions hereof. 
 Section 4.4. This First Amendment
shall be governed by and construed in accordance with New York law. 

  
 - 4 - 

 Section 4.5. The Company shall pay the reasonable fees and expenses of Chapman and
Cutler LLP, counsel to the Noteholders, in connection with the negotiation, preparation, approval, execution and delivery of this First Amendment, within ten (10) days after Company’s receipt of the invoices therefor. 

Section 4.6. The execution hereof by you shall constitute a contract between us for the uses and purposes hereinabove set forth,
and this First Amendment may be executed in any number of counterparts, each executed counterpart constituting an original, but all together only one agreement. 

[Remainder of page intentionally left blank.] 

  
 - 5 - 

 
			
	STERIS CORPORATION
		
	By		 /s/ Michael J. Tokich

	Name:		Michael J. Tokich
	Title:		Senior Vice President, Chief Financial Officer and Treasurer

  
 [Signature Page to First
Amendment to NPA – 2008] 

							
	Accepted as of March 31, 2015		AMERICAN UNITED LIFE INSURANCE COMPANY
				
					By		 /s/ David M. Weisenburger

					Name:		David M. Weisenburger
					Title:		VP, Fixed Income Securities
			
					PIONEER MUTUAL LIFE INSURANCE COMPANY
				
					By:		American United Life Insurance Company
					Its:		Agent
				
					By		 /s/ David M. Weisenburger

					Name:		David M. Weisenburger
					Title:		VP, Fixed Income Securities
			
					THE STATE LIFE INSURANCE COMPANY
				
					By:		American United Life Insurance Company
					Its:		Agent
				
					By		 /s/ David M. Weisenburger

					Name:		David M. Weisenburger
					Title:		VP, Fixed Income Securities

  
 [Signature Page to First
Amendment to NPA – 2008] 

							
	Accepted as of March 31, 2015		AXA EQUITABLE LIFE INSURANCE COMPANY
				
					By		 /s/ Amy Judd

					Name:		Amy Judd
					Title:		Investment Officer

  
 [Signature Page to First
Amendment to NPA – 2008] 

							
	Accepted as of March 31, 2015		KNIGHTS OF COLUMBUS
				
					By		 /s/ Charles E. Maurer, Jr.

					Name:		Charles E. Maurer, Jr.
					Title:		Supreme Secretary

  
 [Signature Page to First
Amendment to NPA – 2008] 

							
	Accepted as of March 31, 2015		METROPOLITAN LIFE INSURANCE COMPANY
			
					METLIFE INSURANCE COMPANY USA
					 F/K/A METLIFE INSURANCE
COMPANY OF
CONNECTICUT
 by Metropolitan Life Insurance Company, its
  investment Manager

				
					By		 /s/ John A. Wills

					Name:		John A. Wills
					Title:		Managing Director

  
 [Signature Page to First
Amendment to NPA – 2008] 

							
	Accepted as of March 31, 2015		MODERN WOODMEN OF AMERICA
				
					By		 /s/ Douglas A. Pannier

					Name:		Douglas A. Pannier
					Title:		Group Head – Private Placement

  
 [Signature Page to First
Amendment to NPA – 2008] 

							
	Accepted as of March 31, 2015		THE PRUDENTIAL INSURANCE COMPANY OF AMERICA
				
					By		 /s/ David Quackenbush

					Name:		David Quackenbush
					Title:		Vice President
			
					 PRUDENTIAL RETIREMENT INSURANCE AND ANNUITY
COMPANY

				
					By:		Prudential Investment Management, Inc.
							(as Investment Manager)
				
					By		 /s/ David Quackenbush

					Name:		David Quackenbush
					Title:		Vice President

  
 [Signature Page to First
Amendment to NPA – 2008] 

							
	Accepted as of March 31, 2015		 THE NORTHWESTERN MUTUAL LIFE INSURANCE
COMPANY

				
					By:		 Northwestern Mutual Investment Management Company, LLC,

Its investment adviser

				
					By		 /s/ Mark E. Kishler

					Name:		Mark E. Kishler
					Title:		Managing Director
							
					 THE NORTHWESTERN LONG TERM CARE
INSURANCE COMPANY

				
					By:		 Northwestern Mutual Investment Management Company, LLC,

Its investment adviser

				
					By		 /s/ Mark E. Kishler

					Name:		Mark E. Kishler
					Title:		Managing Director

  
 [Signature Page to First
Amendment to NPA – 2008] 

							
	Accepted as of March 31, 2015		STATE FARM LIFE INSURANCE COMPANY
				
					By		 /s/ Julie Hoyer

					Name:		Julie Hoyer
					Title:		Senior Investment Officer - Fixed Income
				
					By		 /s/ Jeffrey Attwood

					Name:		Jeffrey Attwood
					Title:		Investment Officer

  
 [Signature Page to First
Amendment to NPA – 2008] 

							
	Accepted as of March 31, 2015	 	THE LAFAYETTE LIFE INSURANCE COMPANY
				
		 		 	By	 	 /s/ James J. Vance

		 		 	Name:	 	James J. Vance
		 		 	Title:	 	Vice President
				
		 		 	By	 	 /s/ Kevin L. Howard

		 		 	Name:	 	Kevin L. Howard
		 		 	Title:	 	Vice President

  
 [Signature Page to First
Amendment to NPA – 2008] 

 AMENDED AND RESTATED NOTE
PURCHASE AGREEMENT 

  
 EXHIBIT
1.1 
 (to First Amendment) 

  

 
 STERIS CORPORATION 

$120,000,000 
 $85,000,000 6.33%
SENIOR NOTES, SERIES A-2, DUE AUGUST 15, 2018 

$35,000,000 6.43% SENIOR NOTES, SERIES A-3,
DUE AUGUST 15, 2020 
  

 

AMENDED AND RESTATED NOTE PURCHASE AGREEMENT 

 
  

DATED AS OF MARCH 31, 2015 

 
  

 

  
 EXHIBIT
1.1 
 (to First Amendment) 

 TABLE OF CONTENTS 

 

							
	SECTION	 	HEADING	  	PAGE	 
	 SECTION 1.
	 	BACKGROUND; AMENDMENT AND RESTATEMENT OF EXISTING NOTE PURCHASE AGREEMENT AND
ORIGINAL SERIES A NOTES	  	 	1	  
			
	 Section 1.1.
	 	 Background
	  	 	1	  
	 Section 1.2.
	 	 Amendment and Restatement of Existing Note Purchase Agreement and Original Series A Notes
	  	 	1	  
	 Section 1.3.
	 	 Amendment and Consent of Noteholders
	  	 	2	  
	 Section 1.4.
	 	 Effect of Amendment and Restatement
	  	 	2	  
	 Section 1.5.
	 	 Subsequent Series
	  	 	2	  
			
	SECTION 2.	 	SEVERAL AND NOT JOINT OBLIGATIONS; SUBSEQUENT SALES	  	 	3	  
			
	 Section 2.1.
	 	 Several and not Joint Obligations
	  	 	3	  
	 Section 2.2.
	 	 Guarantees
	  	 	3	  
	 Section 2.3.
	 	 Subsequent Sales
	  	 	4	  
			
	SECTION 3.	 	CLOSING DATE	  	 	5	  
			
	SECTION 4.	 	CONDITIONS TO CLOSING	  	 	6	  
			
	 Section 4.1.
	 	 Representations and Warranties
	  	 	6	  
	 Section 4.2.
	 	 Performance; No Default
	  	 	6	  
	 Section 4.3.
	 	 Compliance Certificates
	  	 	6	  
	 Section 4.4.
	 	 Opinions of Counsel
	  	 	7	  
	 Section 4.5.
	 	 Purchase Permitted By Applicable Law, Etc
	  	 	7	  
	 Section 4.6.
	 	 Sale of Other Notes
	  	 	7	  
	 Section 4.7.
	 	 Bank Credit Agreement, Security Documents, Etc
	  	 	7	  
	 Section 4.8.
	 	 [Reserved]
	  	 	7	  
	 Section 4.9.
	 	 [Reserved]
	  	 	8	  
	 Section 4.10.
	 	 Private Placement Number
	  	 	8	  
	 Section 4.11.
	 	 Changes in Corporate Structure
	  	 	8	  
	 Section 4.12.
	 	 Funding Instructions
	  	 	8	  
	 Section 4.13.
	 	 Proceedings and Documents
	  	 	8	  
			
	SECTION 5.	 	REPRESENTATIONS AND WARRANTIES OF THE COMPANY	  	 	8	  
			
	 Section 5.1.
	 	 Organization; Power and Authority
	  	 	8	  
	 Section 5.2.
	 	 Authorization, Etc
	  	 	9	  
	 Section 5.3.
	 	 Disclosure
	  	 	9	  
	 Section 5.4.
	 	 Organization and Ownership of Shares of Subsidiaries
	  	 	9	  
	 Section 5.5.
	 	 Financial Statements
	  	 	10	  
	 Section 5.6.
	 	 Compliance with Laws, Other Instruments, Etc
	  	 	10	  
	 Section 5.7.
	 	 Governmental Authorizations, Etc
	  	 	10	  

  
 -i- 

							
	 Section 5.8.
		 Litigation; Observance of Statutes and Orders
		 	10	  
	 Section 5.9.
		 Taxes
		 	11	  
	 Section 5.10.
		 Title to Property; Leases
		 	11	  
	 Section 5.11.
		 Licenses, Permits, Etc
		 	11	  
	 Section 5.12.
		 Compliance with ERISA
		 	11	  
	 Section 5.13.
		 Private Offering by the Company
		 	12	  
	 Section 5.14.
		 Use of Proceeds; Margin Regulations
		 	12	  
	 Section 5.15.
		 Existing Debt
		 	12	  
	 Section 5.16.
		 Foreign Assets Control Regulations, Etc
		 	13	  
	 Section 5.17.
		 Status under Certain Statutes
		 	14	  
			
	SECTION 6.		REPRESENTATIONS OF SUPPLEMENTAL PURCHASERS AND THE HOLDERS OF THE NOTES		 	15	  
			
	 Section 6.1.
		 Purchase for Investment
		 	15	  
	 Section 6.2.
		 Source of Funds
		 	15	  
			
	SECTION 7.		INFORMATION AS TO THE COMPANY		 	17	  
			
	 Section 7.1.
		 Financial and Business Information
		 	17	  
	 Section 7.2.
		 Officer’s Certificate
		 	19	  
	 Section 7.3.
		 Electronic Delivery
		 	20	  
	 Section 7.4.
		 Inspection
		 	20	  
			
	SECTION 8.		PREPAYMENT OF THE NOTES		 	21	  
			
	 Section 8.1.
		 Required Prepayments
		 	21	  
	 Section 8.2.
		 Optional Prepayments with Make-Whole Amount
		 	21	  
	 Section 8.3.
		 Allocation of Partial Prepayments
		 	21	  
	 Section 8.4.
		 Maturity; Surrender, Etc
		 	21	  
	 Section 8.5.
		 Purchase of Notes
		 	22	  
	 Section 8.6.
		 Make-Whole Amount
		 	22	  
	 Section 8.7.
		 Change in Control
		 	23	  
			
	SECTION 9.		AFFIRMATIVE COVENANTS		 	25	  
			
	 Section 9.1.
		 Compliance with Law
		 	25	  
	 Section 9.2.
		 Insurance
		 	26	  
	 Section 9.3.
		 Maintenance of Properties
		 	26	  
	 Section 9.4.
		 Payment of Taxes
		 	26	  
	 Section 9.5.
		 Corporate Existence, Etc
		 	26	  
	 Section 9.6.
		 Notes to Rank Pari Passu
		 	27	  
	 Section 9.7.
		 Guaranty
		 	27	  
	 Section 9.8.
		 Security
		 	28	  
	 Section 9.9.
		 Restricted Subsidiaries
		 	28	  
	 Section 9.10.
		 Transactions with Affiliates
		 	29	  

  
 -ii- 

							
	SECTION 10.		NEGATIVE COVENANTS		 	30	  
			
	 Section 10.1.
		 Subsidiary Indebtedness
		 	30	  
	 Section 10.2.
		 Financial Covenants
		 	32	  
	 Section 10.3.
		 Limitation on Liens
		 	33	  
	 Section 10.4.
		 Mergers and Consolidations, Etc.
		 	35	  
	 Section 10.5.
		 Dispositions
		 	36	  
	 Section 10.6.
		 Changes in Accounting
		 	37	  
	 Section 10.7.
		 Designation of Subsidiaries
		 	37	  
	 Section 10.8.
		 Terrorism Sanctions Regulations
		 	37	  
			
	SECTION 11.		EVENTS OF DEFAULT		 	38	  
			
	SECTION 12.		REMEDIES ON DEFAULT, ETC.		 	41	  
			
	 Section 12.1.
		 Acceleration
		 	41	  
	 Section 12.2.
		 Other Remedies
		 	42	  
	 Section 12.3.
		 Rescission
		 	42	  
	 Section 12.4.
		 No Waivers or Election of Remedies, Expenses, Etc.
		 	42	  
			
	SECTION 13.		REGISTRATION; EXCHANGE; SUBSTITUTION OF NOTES		 	42	  
			
	 Section 13.1.
		 Registration of Notes
		 	42	  
	 Section 13.2.
		 Transfer and Exchange of Notes
		 	43	  
	 Section 13.3.
		 Replacement of Notes
		 	43	  
			
	SECTION 14.		PAYMENTS ON NOTES		 	44	  
			
	 Section 14.1.
		 Place of Payment
		 	44	  
	 Section 14.2.
		 Home Office Payment
		 	44	  
			
	SECTION 15.		EXPENSES, ETC.		 	44	  
			
	 Section 15.1.
		 Transaction Expenses
		 	44	  
	 Section 15.2.
		 Survival
		 	45	  
			
	SECTION 16.		SURVIVAL OF REPRESENTATIONS AND WARRANTIES; ENTIRE AGREEMENT		 	45	  
			
	SECTION 17.		AMENDMENT AND WAIVER		 	45	  
			
	 Section 17.1.
		 Requirements
		 	45	  
	 Section 17.2.
		 Solicitation of Holders of Notes
		 	46	  
	 Section 17.3.
		 Binding Effect, Etc.
		 	47	  
	 Section 17.4.
		 Notes Held by Company, Etc.
		 	47	  
			
	SECTION 18.		NOTICES		 	47	  
			
	SECTION 19.		REPRODUCTION OF DOCUMENTS		 	48	  
			
	SECTION 20.		CONFIDENTIAL INFORMATION		 	48	  

  
 -iii- 

							
	SECTION 21.		SUBSTITUTION OF PURCHASER		 	49	  
			
	SECTION 22.		MISCELLANEOUS		 	49	  
			
	 Section 22.1.
		 Successors and Assigns
		 	49	  
	 Section 22.2.
		 Payments Due on Non-Business Days
		 	50	  
	 Section 22.3.
		 Severability
		 	50	  
	 Section 22.4.
		 Construction
		 	50	  
	 Section 22.5.
		 Counterparts
		 	51	  
	 Section 22.6.
		 Governing Law
		 	51	  
	 Section 22.7.
		 Submission to Jurisdiction; Waiver of Jury Trial
		 	51	  
			
	SECTION 23.		TAX INDEMNIFICATION; PAYMENT IN U.S. DOLLARS		 	51	  

  
 -iv- 

					
	 SCHEDULE A
		—		Information Relating to Noteholders
			
	 SCHEDULE B
		—		Defined Terms
			
	 SCHEDULE 5.3
		—		Disclosure Materials
			
	 SCHEDULE 5.4
		—		Organization and Ownership of Shares of Subsidiaries
			
	 SCHEDULE 5.5
		—		Financial Statements
			
	 SCHEDULE 5.8
		—		Litigation, Observance of Statutes and Orders
			
	 SCHEDULE 5.11
		—		License, Permits, Etc.
			
	 SCHEDULE 5.14
		—		Use of Proceeds
			
	 SCHEDULE 5.15
		—		Existing Debt
			
	 SCHEDULE 9.10
		—		Affiliate Transactions
			
	 EXHIBIT 1-B
		—		Form of 6.33% Senior Notes, Series A-2, due August 15, 2018
			
	 EXHIBIT 1-C
		—		Form of 6.43% Senior Notes, Series A-3, due August 15, 2020
			
	 EXHIBIT 1.5
		—		Form of Supplemental Note
			
	 EXHIBIT 2.2(a)
		—		Form of Affiliate Guaranty
			
	 EXHIBIT 2.3
		—		Form of Supplemental Note Purchase Agreement
			
	 EXHIBIT 4.4(a)
		—		Form of Opinion of Special Counsel to the Company and the Guarantors
			
	 EXHIBIT 4.4(b)
		—		Form of Opinion of Special Counsel to the Supplemental Purchasers

  
 -v- 

 STERIS CORPORATION 

5960 HEISLEY ROAD 

MENTOR, OHIO 44060-1834 

$85,000,000 6.33% Senior Notes, Series A-2, due August 15, 2018 

$35,000,000 6.43% Senior Notes, Series A-3, due August 15, 2020 

Dated as of March 31, 2015 
 To the
Noteholders listed in the attached 
     Schedule A who are signatory hereto: 

Ladies and Gentlemen: 
 STERIS Corporation, an
Ohio corporation (the “Company”), agrees with each holder of a Note as follows: 
 SECTION 1.
BACKGROUND; AMENDMENT AND RESTATEMENT OF EXISTING NOTE PURCHASE AGREEMENT AND
ORIGINAL SERIES A NOTES. 
 Section 1.1. Background. Reference is made to those
certain Note Purchase Agreements, dated as of August 15, 2008 (the “Existing Note Purchase Agreements”), among each Initial Purchaser (as defined therein) thereunder and the Company and pursuant to which the Company issued and
there remains outstanding: 
 (a) $85,000,000 aggregate principal amount of its 6.33% Senior Notes, Series A-2, due August 15, 2018 (the “Series A-2 Notes”), and 

(b) $35,000,000 aggregate principal amount of its 6.43% Senior Notes, Series A-3,
due August 15, 2020 (the “Series A-3 Notes”; the Series A-2 Notes and the Series A-3 Notes
are hereinafter referred to as the “Original Series A Notes”). 
 Each of the noteholders listed in the attached
Schedule A hereto (each, individually, a “Noteholder”, and, collectively, the “Noteholders”) and the Company now desire to amend and restate each Existing Note Purchase Agreement and the Original Series A Notes. In
order to effectuate and reflect the foregoing in the most expeditious manner and to facilitate dealings with respect to the Original Series A Notes and the Existing Note Purchase Agreements, the parties hereto have agreed to (i) enter into
that certain First Amendment to the Existing Note Purchase Agreement, dated as of the date hereof (the “First Amendment”), by and between the Company and each of the parties signatory thereto, which shall amend and restate all of
the Existing Note Purchase Agreements and replace such agreements with this Agreement and (ii) amend and restate each of the Original Series A Notes and replace such notes with the Amended Notes. 

Section 1.2. Amendment and Restatement of Existing Note Purchase Agreement and Original Series A Notes. Effective on the
Closing Date, the Company, by its execution of this Amended and Restated Note Purchase Agreement (this “Agreement”), hereby agrees and consents 

 
to the amendment and restatement in its entirety of each Existing Note Purchase Agreement and its replacement by this Agreement. The Company, by its execution of this Agreement, hereby agrees and
consents to the amendment and restatement of the Original Series A Notes substantially in the form set out in Exhibit 1-B and Exhibit 1-C,
respectively, with such changes therefrom, if any, as may be approved by the holder of the Note and the Company. The Original Series A Notes, as so amended and restated, shall be hereinafter sometimes referred to as the “Amended
Notes”. The Company has duly authorized the execution and delivery to each Noteholder of its respective Amended Notes, each of which Amended Notes shall be exchanged for the Original Series A Notes. 

Section 1.3. Amendment and Consent of Noteholders. The Noteholders are, collectively, the holders of one hundred percent
(100%) of the aggregate principal amount of the Original Series A Notes. Subject to the satisfaction of the conditions precedent set forth in First Amendment, the Noteholders, by their execution of this Agreement, hereby agree and consent
to: (a) the amendment and restatement in its entirety of each Existing Note Purchase Agreement to which such Noteholder is a party and its replacement by this Agreement and (b) the amendment and restatement of the Original Series A
Notes in their entirety by the exchange for an Amended Note substantially in the form set out in Exhibit 1-B and Exhibit 1-C, respectively, with
such changes therefrom, if any, as may be approved by the holder of the Note and the Company, and in an equal outstanding principal amount therefor. 

Section 1.4. Effect of Amendment and Restatement. Each of the Noteholders and the Company agree that (a) the amendment and
restatement of the Original Series A Notes and the exchange of the Original Series A Notes for the Amended Notes hereunder shall not constitute a prepayment of the Original Series A Notes, and (b) no Make-Whole Amount or other premium or amount is payable as a result of the amendment and restatement of the Existing Note Purchase Agreement or the Original Series A Notes as contemplated hereby. 

Section 1.5. Subsequent Series. Subsequent Series of promissory notes (collectively, the “Supplemental
Notes”) may be issued pursuant to Supplemental Note Purchase Agreements as provided in Section 2.3 in an aggregate principal amount not to exceed $100,000,000 and: (a) shall be sequentially identified as “Series B
Notes”, “Series C Notes”, “Series D Notes” et seq. and may consist of more than one different and separate tranches, but all such different and separate tranches of the same Series shall constitute
one Series; (b) shall be in the aggregate principal amount of not less than $25,000,000 per each such series, (c) shall be dated the date of such Supplemental Note Purchase Agreement, (d) shall bear interest from such date at the rate
per annum to be determined as of such date, (e) shall bear interest on overdue principal (including any overdue optional prepayment of principal) and premium, if any, and, to the extent permitted by law, on any overdue installment of interest
at the stated rate plus 2%, (f) shall be subject to required amortization, if any, and optional prepayments, and (g) shall be expressed to mature on the stated maturity date, all as set forth in the Supplemental Note Purchase Agreement
relating thereto and shall otherwise be substantially in the form attached hereto as Exhibit 1.5; provided, no Supplemental Notes shall be issued if at the time of issuance thereof and after giving effect to the application of
proceeds therefor, any Default or Event of Default shall have occurred and be continuing. The Amended Notes, and the Supplemental Notes are herein sometimes collectively referred to as the “Notes” and individually as a “Note.” As
used herein, the term “Notes” shall 

  
 -2- 

 
include, without limitation, each Note delivered pursuant to this Agreement and any other Supplemental Note Purchase Agreement on the Closing Date and/or at any Supplemental Closing and each Note
delivered in substitution or exchange for any such Note pursuant hereto. 
 Certain capitalized terms used in this Agreement are defined in
Schedule B; references to a “Schedule” or an “Exhibit” are, unless otherwise specified, to a Schedule or an Exhibit attached to this Agreement. 

SECTION 2. SEVERAL AND NOT JOINT OBLIGATIONS;
SUBSEQUENT SALES. 
 Section 2.1. Several and Not Joint Obligations. The obligations of the holders
of the Notes hereunder are several and not joint obligations, and each holder of a Note shall have no obligation and no liability to any Person for the performance or nonperformance by any other holder of a Note hereunder. Without limiting the
foregoing, the Company understands and agrees that the Noteholders’ commitment to exchange the Original Series A Notes as herein contemplated does not constitute a commitment, obligation or indication of interest to purchase any
Supplemental Notes. References to “you” and “your” in this Agreement shall severally refer to each holder of a Note. 

Section 2.2. Guarantees. (a) The payment by the Company of all amounts due with respect to the Notes and the performance by
the Company of its obligations under this Agreement will be absolutely and unconditionally guaranteed by the Reporting Entity (if the Reporting Entity is New STERIS Limited) and the Affiliates of the Reporting Entity (other than the Company) that
guarantee the obligations of the obligors under the Bank Credit Agreement (together with any additional Affiliate who delivers a guaranty pursuant to Section 9.7, the “Guarantors”) pursuant to the guaranty agreement
substantially in the form of Exhibit 2.2(a) attached hereto and made a part hereof (as the same may be amended, modified, extended or renewed, the “Affiliate Guaranty”). 

(b) Any instruments, documents and agreements pursuant to which the Reporting Entity or any Subsidiary agrees to grant Liens in favor of a
collateral agent (the “Collateral Agent”) for the benefit of the holders of Notes are hereinafter referred to as the “Collateral Documents”. The Collateral Documents and the Affiliate Guaranties are hereinafter
collectively referred to as the “Security Documents.” 
 (c) [Reserved]. 

(d) If at any time the Reporting Entity or any Affiliate shall grant to any one or more of the Creditors security of any kind or provide any
one or more of the Creditors with additional guaranties or other credit support of any kind pursuant to the requirements of a Material Credit Facility, then the Reporting Entity or such Affiliate shall grant to the holders of the Notes the same
security or guaranty so that the holders of the Notes shall at all times be secured on an equal and pro rata basis with such Creditors. All such additional guaranties or security shall be given to the holders of the Notes pursuant to
Section 9.7 or 9.8, as applicable, of this Agreement. 

  
 -3- 

 (e) The holders of the Notes agree that the obligations of any Affiliate (other than New STERIS
Limited if such entity is the Reporting Entity) under the Affiliate Guaranty and the Liens of the Collateral Documents in respect of all or any part of the collateral therein described shall be automatically released and discharged without the
necessity of further action on the part of the holders of the Notes if, and to the extent, (i) the corresponding guaranty or Lien given pursuant to the terms of any Material Credit Facility is released and (ii) no Default or Event of
Default shall have occurred and then be continuing or result therefrom (or should any Default or Event of Default then exist or result, at such later time as any such Default or Event of Default shall cease to exist or result therefrom), provided
that in the event the Reporting Entity or any Affiliate shall again become obligated under or with respect to the previously discharged Affiliate Guaranty, or again grant the discharged Lien, as the case may be, pursuant to the terms and
provisions the relevant Material Credit Facility, then the Lien granted by the Reporting Entity or its Subsidiaries under a Collateral Document or the obligations of such Affiliate under the Affiliate Guaranty, as the case may be, shall be
reinstated and any release thereof previously given shall be deemed null and void, and such Affiliate Guaranty shall again benefit the holders of the Notes on an equal and pro rata basis. Any release by the holders of the Notes under this
Section 2.2(e) shall be deemed to have occurred concurrently with the release and discharge under the Material Credit Facilities. Further, any reinstatement of an Affiliate Guaranty or Lien pursuant to the terms hereof shall comply with
the terms of Sections 9.7 and 9.8 hereof. The Reporting Entity shall promptly notify the holders of the Notes of any release of an Affiliate Guaranty pursuant to this Section 2.2(e) and shall deliver evidence of any
release or discharge of a guaranty or Lien in customary form. 
 Section 2.3. Subsequent Sales. At any time, and from time to
time, the Company and one or more Eligible Purchasers may enter into an agreement substantially in the form of the Supplemental Note Purchase Agreement attached hereto as Exhibit 2.3 (a “Supplemental Note Purchase
Agreement”) in which the Company shall agree to sell to each such Eligible Purchaser named on the Supplemental Purchaser Schedule attached thereto (collectively, the “Supplemental Purchasers”) and, subject to the terms and
conditions herein and therein set forth, each such Supplemental Purchaser shall agree to purchase from the Company the aggregate principal amount of the Series of Supplemental Notes (which series shall be at least $25,000,000 and may consist of
more than one different and separate tranches, but all such different and separate tranches of the same Series shall constitute one Series) described in such Supplemental Note Purchase Agreement and set opposite such Supplemental
Purchaser’s name in the Supplemental Purchaser Schedule attached thereto at the price and otherwise under the terms set forth in such Supplemental Note Purchase Agreement. The sale of the Supplemental Notes of the Series described in such
Supplemental Note Purchase Agreement will take place at the location, date and time set forth therein at a closing (a “Supplemental Closing”). At such Supplemental Closing the Company will deliver to each such Supplemental Purchaser
one or more Notes of the Series to be purchased by such Supplemental Purchaser registered in such Supplemental Purchaser’s name (or in the name of its nominee), evidencing the aggregate principal amount of Notes of such Series to be
purchased by such Supplemental Purchaser and in the denomination or denominations specified with respect to such Supplemental Purchaser in such Supplemental Purchaser Schedule against payment of the purchase price thereof by transfer of immediately
available funds for credit to the Company’s account on the date of such Supplemental Closing (a “Supplemental Closing Date”) (as specified in a notice to each such Supplemental Purchaser at least three Business Days prior to
such Supplemental Closing Date). 

  
 -4- 

 SECTION 3. CLOSING DATE. 

On the Closing Date, the Company shall execute and deliver to the Noteholders at the offices of Chapman and Cutler LLP, 111 West
Monroe Street, Chicago, Illinois 60603, at 10:00 a.m. Chicago time, or at such other place agreed to by the parties, one or more Amended Notes (as set forth beside each Noteholder’s name on Schedule A), registered in the name
specified on Schedule A, in the denomination or denominations specified on Schedule A and of the series specified in Schedule A, in replacement of the Original Series A Notes held by each Noteholder (or such
Noteholder’s nominee), in the respective principal amounts and of the series, as more particularly set forth below its name on Schedule A. Contemporaneously with the receipt by each Noteholder of such Amended Notes, the Original
Series A Notes held by such Noteholder shall be deemed to be cancelled and replaced by the Amended Notes (regardless of whether such Noteholder shall have delivered to the Company for cancellation the Original Series A Notes held by it).
Each Noteholder agrees to use commercially reasonable efforts to deliver the Original Series A Notes held by it to the Company in connection with the foregoing replacement and cancellation. Except as stated in the last paragraph of this
Section 3, after the Closing Date, no Person shall have any obligation or liability whatsoever to any Noteholder pursuant to or in connection with the Existing Note Purchase Agreement or the Original Series A Notes. If any
Noteholder does not deliver any Original Series A Notes to the Company in connection with the foregoing replacement and cancellation such Noteholder shall indemnify and hold harmless the Company from and against any and all claims, damages,
losses, liabilities and expenses arising out of or in connection with any such Original Series A Note that has not been delivered to the Company. All amounts owing under, and evidenced by, the Original Series A Notes as of the Closing Date
shall continue to be outstanding under, and shall from and after the Closing Date be evidenced by, the Amended Notes, and shall be governed by the terms of this Agreement. It is the intention of the parties hereto that the amendment and restatement
of the Original Series A Notes by the Company and the execution, delivery and full effectiveness of this Agreement by the Company be simultaneous. Original Series A Notes delivered to the Company pursuant to the terms of this Agreement
shall be marked “Cancelled/Amended and Restated by New Notes” by the Company. 
 If on the Closing Date the Company shall fail to
tender the Amended Notes to any Noteholder as provided in this Section 3, or any of the conditions specified in the First Amendment shall not have been fulfilled to any Noteholder’s satisfaction, such Noteholder shall, at such
Noteholder’s election, be relieved of all further obligations under this Agreement, without thereby waiving any rights such Noteholder may have under the Existing Note Purchase Agreement, the Original Series A Notes or otherwise by reason
of such failure or such nonfulfillment. 
 All payment obligations of the Company under the Existing Note Purchase Agreement and Original
Series A Notes (other than reimbursement obligations in respect of costs, expenses and fees of or incurred by the holders of the Original Series A Notes arising prior to the date hereof) shall be cancelled and the payment obligations of
the Company shall be replaced by, and evidenced solely by, this Agreement and the Amended Notes. 

  
 -5- 

 SECTION 4. CONDITIONS TO CLOSING. 

Your obligation to exchange the Original Series A Notes, is subject solely to the fulfillment to your satisfaction of the conditions set
forth in the First Amendment (the date such conditions are satisfied, the “Closing Date”). Each Supplemental Purchaser’s obligation to execute and deliver a Supplemental Note Purchase Agreement and the obligations of each
Supplemental Purchaser to purchase and pay for the Notes to be sold at the applicable Supplemental Closing is subject to the fulfillment to such Supplemental Purchasers’ satisfaction prior to or on the date of such Supplemental Closing, of the
following conditions set forth in this Section 4. 
 Section 4.1. Representations and Warranties. (a) The
representations and warranties of the Company in this Agreement, as modified by any amendment, supplement or superseding provision pursuant to the Supplemental Note Purchase Agreement shall be correct when made on the date of such Supplemental
Closing (or if such representation or warranty is expressly stated to have been made as of a specific date, as of such specific date). 

(b) The representations and warranties of each Guarantor, as modified by any amendment, supplement or superseding provision pursuant to any
supplemental agreement shall be correct when made on the date of such Supplemental Closing (or if such representation or warranty is expressly stated to have been made as of a specific date, as of such specific date). 

Section 4.2. Performance; No Default. (a) The Company shall have performed and complied with all material agreements and
conditions contained in this Agreement (or in the applicable Supplemental Note Purchase Agreement) required to be performed or complied with by it prior to or at the time of such Supplemental Closing, and after giving effect to the issue and sale of
the Supplemental Notes, no Default or Event of Default shall have occurred and be continuing. 
 (b) Each Guarantor shall have performed and
complied with all material agreements and conditions contained in the Affiliate Guaranty required to be performed and complied with by it prior to or at the time of such Supplemental Closing, and after giving effect to the issue and sale of
Supplemental Notes, no Default or Event of Default shall have occurred and be continuing. 
 Section 4.3. Compliance
Certificates. 
 (a) Officer’s Certificate. The Company shall have delivered to you an Officer’s Certificate, dated the
date of such Supplemental Closing, certifying that the conditions specified in Sections 4.1(a), 4.2(a) and 4.11 have been fulfilled. 

(b) Guarantor Officer’s Certificate. Each Guarantor shall have delivered to you a certificate of an authorized officer, dated the
date of such Supplemental Closing certifying that the conditions set forth in Sections 4.1(b), 4.2(b) and 4.11 have been fulfilled. 

(c) Authorization Certificate. The Company shall have delivered to you a certificate dated the date of such Supplemental Closing
certifying as to the resolutions attached thereto and other corporate proceedings relating to the authorization, execution and delivery of the Supplemental Notes, this Agreement or the Supplemental Note Purchase Agreement, as the case may be, and
any Security Documents to which it is a party. 

  
 -6- 

 (d) Guarantor Authorization Certificate. Each Guarantor shall have delivered to you a
certificate dated the date of such Supplemental Closing, certifying as to the resolutions attached thereto and other corporate proceedings relating to the authorization, execution and delivery of the Affiliate Guaranty. 

Section 4.4. Opinions of Counsel. You shall have received opinions in form and substance satisfactory to you, dated the date of
such supplemental Closing (a) from counsel for the Company and the Guarantors, which may include in-house counsel, covering the matters set forth in Exhibit 4.4(a) (and the Company hereby
instructs its counsel to deliver such opinion to you) and (b) from Chapman and Cutler LLP, your special counsel in connection with such transactions, substantially in the form set forth in
 Exhibit 4.4(b) and covering such
other matters incident to such transactions as you may reasonably request. 
 Section 4.5. Purchase Permitted By Applicable Law,
Etc. On the date of such Supplemental Closing your purchase of Notes shall (a) be permitted by the laws and regulations of each jurisdiction to which you are subject, without recourse to provisions (such as Section 1405(a)(8) of the
New York Insurance Law) permitting limited investments by insurance companies without restriction as to the character of the particular investment, (b) not violate any applicable law or regulation (including, without limitation,
Regulation T, U or X of the Board of Governors of the Federal Reserve System) and (c) not subject you to any tax, penalty or liability under or pursuant to any applicable law or regulation, which law or regulation was not in effect on the
date of the Supplemental Closing. If requested by you, you shall have received an Officer’s Certificate certifying as to such matters of fact as you may reasonably specify to enable you to determine whether such purchase is so permitted. 

Section 4.6. Sale of Other Notes. Contemporaneously with such Supplemental Closing, the Company shall sell to the other
Supplemental Purchasers, and the other Supplemental Purchasers shall purchase, the Supplemental Notes to be purchased by them at such Supplemental Closing as specified in Schedule A to the Supplemental Note Purchase Agreement. 

Section 4.7. Bank Credit Agreement, Security Documents, Etc. (a) All necessary consents, joinders and acknowledgements
relating to the Bank Credit Agreement, the 2012 Note Purchase Agreements, the 2003 Note Purchase Agreements and any Security Documents shall be in form and substance satisfactory to you and your special counsel, shall have been duly executed and
delivered by the parties thereto and shall be in full force and effect and you shall have received true, correct and complete copies of each thereof. 

(b) At each Supplemental Closing, the Security Documents (including, without limitation, the Affiliate Guaranty), if any, shall be amended
and/or supplemented as necessary to include the Supplemental Notes thereunder. 
 Section 4.8. [Reserved]. 

  
 -7- 

 Section 4.9. [Reserved]. 

Section 4.10. Private Placement Number. A Private Placement Number issued by Standard & Poor’s CUSIP Service Bureau
(in cooperation with the Securities Valuation Office of the National Association of Insurance Commissioners) shall have been obtained for each tranche of the Series of Supplemental Notes then to be issued. 

Section 4.11. Changes in Corporate Structure. Other than as permitted by the terms of this Agreement after the Closing Date, the
Company and the Guarantors shall not have changed their jurisdiction of incorporation or been a party to any merger or consolidation and shall not have succeeded to all or any substantial part of the liabilities of any other entity, at any time
following the date of the most recent financial statements referred to in Schedule 5.5. 
 Section 4.12. Funding
Instructions. At least three Business Days prior to the date of such Supplemental Closing, you shall have received written instructions executed by a Responsible Officer of the Company directing the manner of the payment of funds and setting
forth (a) the name and address of the transferee bank, (b) such transferee bank’s ABA number, (c) the account name and number into which the purchase price for the Supplemental Notes is to be deposited, (d) the name and
telephone number of the account representative responsible for verifying receipt of such funds and (e) any other information that may be required to effect such transfer. 

Section 4.13. Proceedings and Documents. All corporate and other proceedings in connection with the transactions contemplated by
this Agreement and all documents and instruments incident to such transactions shall be satisfactory to you and your special counsel, and you and your special counsel shall have received all such counterpart originals or certified or other copies of
such documents as you or they may reasonably request. 
 SECTION 5. REPRESENTATIONS AND
WARRANTIES OF THE COMPANY. 
 The Reporting Entity represents and warrants to you
on the Closing Date those representations and warranties set forth in Section 5.1 through Section 5.17: 
 The
holders of Notes and any Supplemental Purchasers recognize and acknowledge that the Company may supplement or amend, as appropriate, the following representations and warranties, as well as the schedules related thereto (including, without
limitation, by referring in the representations, warranties and schedules to the Reporting Entity as appropriate), pursuant to a Supplemental Note Purchase Agreement on the date of each Supplemental Closing; provided that no such supplement
or amendment to any representation or warranty applicable to any Supplemental Closing shall change or otherwise modify or be deemed or construed to change or otherwise modify any representation or warranty given on the Closing Date or any
determination of the falseness or inaccuracy thereof within the limitations of Section 11(e). 
 Section 5.1.
Organization; Power and Authority. The Company is a corporation duly organized, validly existing and in good standing under the laws of its jurisdiction of incorporation, and is duly qualified as a foreign corporation and is in good standing in
each jurisdiction in which such qualification is required by law, other than those jurisdictions as to which the failure to be so 

  
 -8- 

 
qualified or in good standing would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect. The Company has the corporate power and authority to own or
hold under lease the properties it purports to own or hold under lease, to transact the business it transacts and proposes to transact, to execute and deliver this Agreement, the Notes and any Security Documents to which it is a party and to perform
the provisions hereof and thereof. 
 Section 5.2. Authorization, Etc. This Agreement, the Notes and any Security Documents to
which it is a party have been duly authorized by all necessary corporate action on the part of the Company, and this Agreement constitutes, and upon execution and delivery thereof and upon receipt of consideration therefor, each Note will
constitute, a legal, valid and binding obligation of the Company enforceable against the Company in accordance with its terms, except as such enforceability may be limited by (a) applicable bankruptcy, insolvency, reorganization, moratorium or
other similar laws affecting the enforcement of creditors’ rights generally and (b) general principles of equity (regardless of whether such enforceability is considered in a proceeding in equity or at law). 

Section 5.3. Disclosure. This Agreement, the Securities and Exchange Commission filings, press releases and other documents
identified in Schedule 5.3 and the financial statements listed in Schedule 5.5, taken as a whole, do not contain any untrue statement of a material fact or omit to state any material fact necessary to make the statements
therein not misleading in the light of the circumstances under which they were made. Since March 31, 2014, there has been no change in the financial condition, operations, business or properties of the Company or any of its Subsidiaries except
changes that individually or in the aggregate would not reasonably be expected to have a Material Adverse Effect, except as disclosed in Schedule 5.3 and 5.8. 

Section 5.4. Organization and Ownership of Shares of Subsidiaries. (a) Schedule 5.4 is (except as noted therein)
a complete and correct list (i) of the Reporting Entity’s Subsidiaries, showing, as to each Subsidiary, the correct name thereof, the jurisdiction of its organization, and the percentage of shares of each class of its capital stock or
similar equity interests outstanding owned by the Company and each other Subsidiary and (ii) of the Reporting Entity’s Restricted Subsidiaries. 

(b) All of the outstanding shares of capital stock or similar equity interests of each Subsidiary shown in Schedule 5.4 as being
owned by the Reporting Entity and its Subsidiaries have been validly issued, are fully paid and nonassessable and are owned by the Reporting Entity or another Subsidiary free and clear of any Lien (except as otherwise disclosed in
Schedule 5.4 and except for Liens permitted by Section 10.3(e)). 
 (c) Each Subsidiary identified in
Schedule 5.4 is a corporation or other legal entity duly organized, validly existing and in good standing (if applicable) under the laws of its jurisdiction of organization, and is duly qualified as a foreign corporation or other legal
entity and is in good standing in each jurisdiction in which such qualification is required by law, other than those jurisdictions as to which the failure to be so qualified or in good standing would not, individually or in the aggregate, reasonably
be expected to have a Material Adverse Effect. Each such Subsidiary has the corporate or other power and authority to own or hold under lease the properties it purports to own or hold under lease and to transact the business it transacts and
proposes to transact. 

  
 -9- 

 Section 5.5. Financial Statements. The Company has made available to each Noteholder
copies of the consolidated financial statements of the Reporting Entity and its Subsidiaries included in those reports listed on Schedule 5.5. All of said financial statements (including in each case the related schedules and notes)
fairly present in all material respects the consolidated financial position of the Reporting Entity and its Subsidiaries as of the respective dates specified in such financial statements and the consolidated results of their operations and cash
flows for the respective periods so specified and have been prepared in accordance with GAAP consistently applied throughout the periods involved except as set forth in the notes thereto (subject, in the case of any interim financial statements, to
normal year-end adjustments). 
 Section 5.6. Compliance with Laws, Other Instruments,
Etc. The execution, delivery and performance by the Company of this Agreement, the Notes and any Security Documents to which it is a party will not (a) contravene, result in any breach of, or constitute a default under, or result in the
creation of any Lien in respect of any property of the Company or any Restricted Subsidiary (except the creation of Liens contemplated by the Collateral Documents) under, any indenture, mortgage, deed of trust, loan, purchase or credit agreement,
lease, corporate charter or by-laws, or any other Material agreement or instrument to which the Company or any Restricted Subsidiary is bound or by which the Company or any Restricted Subsidiary or any of
their respective properties may be bound or affected, (b) conflict with or result in a breach of any of the terms, conditions or provisions of any order, judgment, decree, or ruling of any court, arbitrator or Governmental Authority applicable
to the Company or any Restricted Subsidiary or (c) violate any provision of any statute or other rule or regulation of any Governmental Authority applicable to the Company or any Restricted Subsidiary. 

Section 5.7. Governmental Authorizations, Etc. No consent, approval or authorization of, or registration, filing or declaration
with, any Governmental Authority by the Company is required in connection with the execution, delivery or performance by the Company of this Agreement, the Notes or the Security Documents to which it is a party. 

Section 5.8. Litigation; Observance of Statutes and Orders. (a) Except as disclosed in Schedule 5.8, there are no
actions, suits or proceedings pending or, to the knowledge of the Company, threatened against or affecting the Company or any Restricted Subsidiary or any property of the Company or any Restricted Subsidiary in any court or before any arbitrator of
any kind or before or by any Governmental Authority that, individually or in the aggregate, would reasonably be expected to have a Material Adverse Effect. 

(b) Except as disclosed in Schedule 5.8, neither the Company nor any Restricted Subsidiary is in default under any order,
judgment, decree or ruling of any court, arbitrator or Governmental Authority or is in violation of any applicable law, ordinance, rule or regulation (including without limitation Environmental Laws) of any Governmental Authority, which default or
violation, individually or in the aggregate, would reasonably be expected to have a Material Adverse Effect. 

  
 -10- 

 Section 5.9. Taxes. The Company and its Restricted Subsidiaries have filed all tax
returns that are required to have been filed in any jurisdiction, and have paid all taxes shown to be due and payable on such returns and all other taxes and assessments payable by them, to the extent such taxes and assessments have become due and
payable and before they have become delinquent, except for any taxes and assessments (a) the amount of which is not individually or in the aggregate Material or (b) the amount, applicability or validity of which is currently being
contested in good faith by appropriate proceedings and with respect to which the Company or a Restricted Subsidiary, as the case may be, has established adequate reserves in accordance with GAAP (or English GAAP, as applicable). The federal income
tax liabilities of the Company and its Subsidiaries are not subject to further review by the Internal Revenue Service and have been paid, for all fiscal years up to and including the fiscal year ended March 31, 2012. 

Section 5.10. Title to Property; Leases. The Company and its Restricted Subsidiaries have good and sufficient title to their
respective Material properties, including all such properties reflected in the most recent audited balance sheet referred to in Section 5.5 or acquired by the Company or any Restricted Subsidiary after said date (except as sold or
otherwise disposed of in the ordinary course of business), in each case free and clear of Liens prohibited by this Agreement except for those defects in title and Liens that individually or in the aggregate, would not reasonably be expected to have
a Material Adverse Effect. All Material leases are valid and subsisting and are in full force and effect in all material respects. 

Section 5.11. Licenses, Permits, Etc. Except as disclosed in Schedule 5.11, the Company and its Restricted
Subsidiaries own or possess all licenses, permits, franchises, authorizations, patents, copyrights, proprietary software, service marks, trademarks and trade names, or rights thereto, that are Material, without known conflict with the rights of
others, except for those conflicts that, individually or in the aggregate, would not have a Material Adverse Effect. 

Section 5.12. Compliance with ERISA. (a) The Company and each ERISA Affiliate have operated and administered each Plan in
compliance with all applicable laws except for such instances of noncompliance which have not resulted in and would not reasonably be expected to result in a Material Adverse Effect. Neither the Company nor any ERISA Affiliate has incurred any
liability pursuant to Title I or IV of ERISA or the penalty or excise tax provisions of the Code relating to employee benefit plans (as defined in Section 3 of ERISA), and no event, transaction or condition has occurred or exists that
would reasonably be expected to result in the incurrence of any such liability by the Company or any ERISA Affiliate, or in the imposition of any Lien on any of the rights, properties or assets of the Company or any ERISA Affiliate, in either case
pursuant to Title I or IV of ERISA or to such penalty or excise tax provisions or to Section 436 or 430 of the Code (or the predecessor provisions of Sections 401(a)(29) or 412 of the Code), other than such liabilities or Liens as
would not individually or in the aggregate reasonably be expected to be Material. 
 (b) The present value of the aggregate benefit
liabilities under each of the Plans subject to ERISA (other than Multiemployer Plans), determined as of the end of such Plan’s most recently ended plan year on the basis of the actuarial assumptions specified for funding purposes in such
Plan’s most recent actuarial valuation report, did not exceed the aggregate current value of the assets of such Plan allocable to such benefit liabilities by more than $20,000,000. The term “benefit liabilities” has the meaning
specified in Section 4001 of ERISA and the terms “current value” and “present value” have the meaning specified in Section 3 of ERISA. 

  
 -11- 

 (c) The Company and its ERISA Affiliates have not incurred withdrawal liabilities (and are not
subject to contingent withdrawal liabilities) under Section 4201 or 4204 of ERISA in respect of Multiemployer Plans that individually or in the aggregate are Material. 

(d) The expected post-retirement benefit obligation (determined as of the last day of the
Company’s most recently ended fiscal year in accordance with Financial Accounting Standards Board Statement No. 106, without regard to liabilities attributable to continuation coverage mandated by Section 4980B of the Code) of the
Company and its Restricted Subsidiaries does not exceed $25,000,000. 
 (e) The execution and delivery of this Agreement and the issuance
and sale of the Notes hereunder will not involve any transaction that is subject to the prohibitions of Section 406 of ERISA or in connection with which a tax could be imposed pursuant to
section 4975(c)(1)(A)-(D) of the Code. The representation by the Company in the first sentence of this Section 5.12(e) is made in reliance upon and subject to the accuracy of your
representation in Section 6.2 as to the sources of the funds used to pay the purchase price of the Notes to be purchased by you. 

Section 5.13. Private Offering by the Company. Neither the Company nor, assuming the accuracy of the Offeree Letters, anyone
acting on its behalf has offered the Notes, the Affiliate Guaranties or any similar securities for sale to, or solicited any offer to buy any of the same from, or otherwise approached or negotiated in respect thereof with, any Person other than you,
and not more than 20 other Institutional Investors, each of which has been offered the Notes at a private sale for investment. Neither the Company nor, assuming the accuracy of the Offeree Letter, anyone acting on its behalf has taken, or will take,
any action that would subject the issuance or sale of the Notes or the Affiliate Guaranties to the registration requirements of Section 5 of the Securities Act. 

Section 5.14. Use of Proceeds; Margin Regulations. No part of the proceeds from the sale of the Original Series A Notes has
been, and no part of the proceeds from the sale of the Supplemental Notes hereunder will be, used, directly or indirectly, for the purpose of buying or carrying any margin stock within the meaning of Regulation U of the Board of Governors of
the Federal Reserve System (12 CFR 221), or for the purpose of buying or carrying or trading in any securities under such circumstances as to involve the Company in a violation of Regulation X of said Board (12 CFR 224) or to involve
any broker or dealer in a violation of Regulation T of said Board (12 CFR 220). Margin stock does not constitute more than 5% of the value of the consolidated assets of the Company and its Subsidiaries and the Company does not have
any present intention that margin stock will constitute more than 5% of the value of such assets. As used in this Section, the terms “margin stock” and “purpose of buying or carrying” shall have the meanings assigned to them in
said Regulation U. 
 Section 5.15. Existing Debt. Schedule 5.15 sets forth a complete and correct list of all
outstanding Borrowed Debt with an aggregate outstanding principal amount in excess of $10,000,000 (provided that the aggregate amount of all such Debt not listed on Schedule 5.15  

  
 -12- 

 
does not exceed $25,000,000) of the Company and its Restricted Subsidiaries as of December 31, 2014, since which date there has been no Material change in the amounts, interest rates,
sinking funds, installment payments or maturities of the Borrowed Debt of the Company or its Restricted Subsidiaries; other than in connection with the Bank Credit Agreement, the termination of the Amended and Restated Letter Agreement, dated as of
May 15, 2014, between the Company and PNC Bank, National Association, and the termination of that certain Third Amended and Restated Credit Agreement (the “Existing STERIS Credit Agreement”), dated as of April 13, 2012, as
amended, among the Company, KeyBank, as administrative agent for the lenders from time to time party thereto, and such lenders. Neither the Company nor any Restricted Subsidiary is in default and no waiver of default is currently in effect, in the
payment of any principal or interest on any Debt of the Company or such Restricted Subsidiary and no event or condition exists with respect to any Debt of the Company or any Restricted Subsidiary that would permit (or that with notice or the lapse
of time, or both, would permit) one or more Persons to cause such Borrowed Debt to become due and payable before its stated maturity or before its regularly scheduled dates of payment, other than with respect to any such Borrowed Debt, a default
under which would not individually or in the aggregate have a Material Adverse Effect. 
 Section 5.16. Foreign Assets Control
Regulations, Etc. (a) Neither the Company nor any Controlled Entity is (i) a Person whose name appears on the list of Specially Designated Nationals and Blocked Persons published by the Office of Foreign Assets Control, United States
Department of the Treasury (“OFAC”) (an “OFAC Listed Person”), (ii) an agent, department, or instrumentality of, or is otherwise beneficially owned by, controlled by or acting on behalf of, directly or
indirectly, (x) any OFAC Listed Person or (y) any Person, entity, organization, foreign country or regime that is subject to any OFAC Sanctions Program, or (iii) otherwise blocked, subject to sanctions under or engaged in any activity
in violation of other United States economic sanctions, including but not limited to, the Trading with the Enemy Act, the International Emergency Economic Powers Act, the Comprehensive Iran Sanctions, Accountability and Divestment Act
(“CISADA”) or any similar law or regulation with respect to Iran or any other country, the Sudan Accountability and Divestment Act, any OFAC Sanctions Program, or any economic sanctions regulations administered and enforced by the
United States or any enabling legislation or executive order relating to any of the foregoing (collectively, “U.S. Economic Sanctions”) (each OFAC Listed Person and each other Person, entity, organization and government of a country
described in clause (i), clause (ii) or clause (iii), a “Blocked Person”). Neither the Company nor any Controlled Entity has been notified that its name appears or may in the future appear on a state list of Persons that engage
in investment or other commercial activities in Iran or any other country that is subject to U.S. Economic Sanctions. 
 (b) No part of the
proceeds from any sale of any Supplemental Notes hereunder will be, used by the Company or any Controlled Entity, directly or indirectly, (i) in connection with any investment in, or any transactions or dealings with, any Blocked Person, or
(ii) otherwise in violation of U.S. Economic Sanctions. 
 (c) Neither the Company nor any Controlled Entity (i) has been found in
violation of, charged with, or convicted of, money laundering, drug trafficking, terrorist-related activities or other money laundering predicate crimes under the Currency and Foreign Transactions Reporting
Act of 1970 (otherwise known as the Bank Secrecy Act), the USA PATRIOT Act or any other 

  
 -13- 

 
United States law or regulation governing such activities (collectively, “Anti-Money Laundering Laws”) or any U.S. Economic Sanctions
violations, (ii) to the Company’s actual knowledge after making due inquiry, is under investigation by any Governmental Authority for possible violation of Anti-Money Laundering Laws or any U.S.
Economic Sanctions violations, (iii) has been assessed civil penalties under any Anti-Money Laundering Laws or any U.S. Economic Sanctions, or (iv) has had any of its funds seized or forfeited in an
action under any Anti-Money Laundering Laws. The Company has established procedures and controls which it reasonably believes are adequate (and otherwise comply with applicable law) to ensure that the Company
and each Controlled Entity is and will continue to be in compliance with all applicable current and future Anti-Money Laundering Laws and U.S. Economic Sanctions. 

(d) (1) Neither the Company nor any Controlled Entity (i) has been charged with, or convicted of bribery or any other anti-corruption related activity under any applicable law or regulation in a U.S. or any non-U.S. country or jurisdiction, including but not limited to, the U.S. Foreign
Corrupt Practices Act and the U.K. Bribery Act 2010 (collectively, “Anti-Corruption Laws”), (ii) to the Company’s actual knowledge after making due inquiry, is under investigation by
any U.S. or non-U.S. Governmental Authority for possible violation of Anti-Corruption Laws, (iii) has been assessed civil or criminal penalties under any Anti-Corruption Laws or (iv) has been or is the target of sanctions imposed by the United Nations or the European Union; 

(2) To the Company’s actual knowledge after making due inquiry, neither the Company nor any Controlled Entity has, within the last five
years, directly or indirectly offered, promised, given, paid or authorized the offer, promise, giving or payment of anything of value to a Governmental Official or a commercial counterparty for the purposes of: (i) influencing any act, decision
or failure to act by such Governmental Official in his or her official capacity, (ii) inducing a Governmental Official to do or omit to do any act in violation of the Governmental Official’s lawful duty, or (iii) inducing a
Governmental Official or a commercial counterparty to use his or her influence with a government or instrumentality to affect any act or decision of such government or entity; in each case in order to obtain, retain or direct business or to
otherwise secure an improper advantage in violation of any applicable law or regulation or which would cause any holder to be in violation of any law or regulation applicable to such holder; and 

(3) No part of the proceeds from any sale of any Supplemental Notes hereunder will be, used, directly or indirectly, for any improper
payments, including bribes, to any Governmental Official or commercial counterparty in order to obtain, retain or direct business or obtain any improper advantage. The Company has established procedures and controls which it reasonably believes are
adequate (and otherwise comply with applicable law) to ensure that the Company and each Controlled Entity is and will continue to be in compliance with all applicable current and future Anti-Corruption Laws.

 (e) The representations set forth in Section 5.16(b) and Section 5.16(d) of the Existing Note Purchase Agreements were true and
correct when made with respect to the Original Series A Notes. 
 Section 5.17. Status under Certain Statutes. Neither the
Company nor any Subsidiary is an “investment company”, nor controlled by an “investment company”, required to be registered 

  
 -14- 

 
under the Investment Company Act of 1940, as amended, or is subject to regulation under the Public Utility Holding Company Act of 2005, the ICC Termination Act of 1995, as amended, or the Federal
Power Act, as amended. 
 SECTION 6. REPRESENTATIONS OF SUPPLEMENTAL
PURCHASERS AND THE HOLDERS OF THE NOTES. 

Section 6.1. Purchase for Investment. You represent that (i) (a) you are exchanging the Original Series A Notes, and
accepting the Amended Notes in exchange therefor, or (b) you are purchasing the Supplemental Notes, for your own account or for one or more separate accounts maintained by you or for the account of one or more pension or trust funds and not
with a view to the distribution thereof; provided that the disposition and sale of your or their property shall at all times be within your or their control, and (ii) you and any such pension or trust funds are a “qualified
institutional buyer” within the meaning of Rule 144A(a)(1) under the Securities Act. You understand that the Notes and the Affiliate Guaranties have not been, and will not be, registered under the Securities Act and may be resold only if
registered pursuant to the provisions of the Securities Act or if an exemption from registration is available, except under circumstances where neither such registration nor such an exemption is required by law, and that the Company is not required
to register the Notes and the Affiliate Guaranties. 
 Section 6.2. Source of Funds. You represent that at least one of the
following statements is an accurate representation as to each source of funds (a “Source”) used or to be used by you to pay the purchase price of the Original Series A Notes purchased by you pursuant to the Existing Note
Purchase Agreement or the Notes to be purchased by you hereunder: 
 (a) the Source is an “insurance company general
account” (as the term is defined in the United States Department of Labor’s Prohibited Transaction Exemption (“PTE”) 95-60) in respect of which the reserves and liabilities (as
defined by the annual statement for life insurance companies approved by the National Association of Insurance Commissioners (the “NAIC Annual Statement”)) for the general account contract(s) held by or on behalf of any employee
benefit plan together with the amount of the reserves and liabilities for the general account contract(s) held by or on behalf of any other employee benefit plans maintained by the same employer (or affiliate thereof as defined in PTE 95-60) or by the same employee organization in the general account do not exceed ten percent (10%) of the total reserves and liabilities of the general account (exclusive of separate account liabilities) plus
surplus as set forth in the NAIC Annual Statement filed with your state of domicile; or 
 (b) the Source is a separate
account that is maintained solely in connection with your fixed contractual obligations under which the amounts payable, or credited, to any employee benefit plan (or its related trust) that has any interest in such separate account (or to any
participant or beneficiary of such plan (including any annuitant)) are not affected in any manner by the investment performance of the separate account; or 

(c) the Source is either (i) an insurance company pooled separate account, within the meaning of PTE 90-1, or (ii) a bank collective investment fund, within the 

  
 -15- 

 
meaning of the PTE 91-38 and, except as have been disclosed by you to the Company in writing pursuant to this clause (c), no employee benefit plan or
group of plans maintained by the same employer or employee organization beneficially owns more than 10% of all assets allocated to such pooled separate account or collective investment fund; or 

(d) the Source constitutes assets of an “investment fund” (within the meaning of Part VI of PTE 84-14 (the “QPAM Exemption”)) managed by a “qualified professional asset manager” or “QPAM” (within the meaning of Part VI of the QPAM Exemption), no employee
benefit plan’s assets that are managed by the QPAM in such investment fund, when combined with the assets of all other employee benefit plans established or maintained by the same employer or by an affiliate (within the meaning of
Part VI(c)(1) of the QPAM Exemption) of such employer or by the same employee organization and managed by such QPAM, represent more than 20% of the total client assets managed by such QPAM, the conditions of Part I(c) and (g) of the
QPAM Exemption are satisfied, neither the QPAM nor a person controlling or controlled by the QPAM maintains an ownership interest in the Company that would cause the QPAM and the Company to be “related” within the meaning of

Part VI(h) of the QPAM Exemption and (i) the identity of such QPAM and (ii) the names of any employee benefit plans whose assets in the investment fund, when combined with the assets of all other employee benefit plans established or
maintained by the same employer or by an affiliate (within the meaning of Part VI(c)(1) of the QPAM Exemption) of such employer or by the same employee organization, represent 10% or more of the assets of such investment fund, have been
disclosed to the Company in writing pursuant to this clause (d); or 
 (e) the Source constitutes assets of a
“plan(s)” (within the meaning of Part IV(h) of PTE 96-23 (the “INHAM Exemption”)) managed by an “in-house asset manager”
or “INHAM” (within the meaning of Part IV(a) of the INHAM Exemption), the conditions of Part I(a), (g) and (h) of the INHAM Exemption are satisfied, neither the INHAM nor a Person controlling or controlled by the INHAM
(applying the definition of “control” in Part IV(d)(3) of the INHAM Exemption) owns a 10% or more interest in the Company and (i) the identity of such INHAM and (ii) the name(s) of the employee benefit plan(s) whose assets
constitute the Source have been disclosed to the Company in writing pursuant to this clause (e); or 
 (f) the Source is
a governmental plan; or 
 (g) the Source is one or more employee benefit plans, or a separate account or trust fund
comprised of one or more employee benefit plans, each of which has been identified to the Company in writing pursuant to this clause (g); or 

(h) the Source does not include assets of any employee benefit plan, other than a plan exempt from the coverage of ERISA. 

As used in this Section 6.2, the terms “employee benefit plan”, “governmental plan”, “party in interest” and
“separate account” shall have the respective meanings assigned to such terms in Section 3 of ERISA. 

  
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 SECTION 7. INFORMATION AS TO THE
COMPANY. 
 Section 7.1. Financial and Business Information. The Company shall furnish to each holder of Notes:

 (a) Quarterly Statements — within 60 days after the end of each quarterly fiscal period in each fiscal
year of the Reporting Entity (other than the last quarterly fiscal period of each such fiscal year), copies of: 
 (i) a
consolidated balance sheet of the Reporting Entity and its Subsidiaries as at the end of such quarter, and 
 (ii)
consolidated statements of income and cash flows of the Reporting Entity and its Subsidiaries for such quarter and (in the case of the second and third quarters) for the portion of the fiscal year ending with such quarter, 

setting forth in each case in comparative form the figures for the corresponding periods in the previous fiscal year, all in reasonable detail,
prepared in accordance with GAAP applicable to quarterly financial statements generally, and certified by a Senior Financial Officer as fairly presenting, in all material respects, the financial position of the companies being reported on and their
results of operations and cash flows, subject to changes resulting from year-end adjustments; provided that delivery within the time period specified above of copies of the Reporting Entity’s
Quarterly Report on Form 10-Q prepared in compliance with the requirements therefor and filed with the Securities and Exchange Commission shall be deemed to satisfy the requirements of this
Section 7.1(a); 
 (b) Annual Statements — within 140 days after the end of each fiscal year of
the Reporting Entity, copies of, 
 (i) a consolidated balance sheet of the Reporting Entity and its Subsidiaries, as at the
end of such year, and 
 (ii) consolidated statements of income and cash flows of the Reporting Entity and its Subsidiaries,
for such year, 
 setting forth in each case in comparative form the figures for the previous fiscal year, all in reasonable detail, prepared
in accordance with GAAP, and accompanied by an opinion thereon of independent certified public accountants of recognized national standing, which opinion shall state that such financial statements present fairly, in all material respects, the
financial position of the companies being reported upon and their results of operations and cash flows and have been prepared in conformity with GAAP, and that the examination of such accountants in connection with such financial statements has been
made in accordance with generally accepted auditing standards, and that such audit provides a reasonable basis for such opinion in the circumstances, and provided that the delivery within the time period specified above of the Reporting
Entity’s Annual Report on Form 10-K for such fiscal year (together with the Reporting Entity’s annual report to 

  
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shareholders, if any, prepared pursuant to Rule 14a-3 under the Exchange Act) prepared in accordance with the requirements therefor and filed with the
Securities and Exchange Commission shall be deemed to satisfy the requirements of this Section 7.1(b); 
 (c) SEC
and Other Reports — promptly upon their becoming available, one copy of (i) each financial statement, report, notice or proxy statement sent by the Reporting Entity or any Subsidiary to public securities holders generally, and
(ii) each regular or periodic report, each registration statement that shall have become effective (without exhibits except as expressly requested by such holder), and each final prospectus and all amendments thereto filed by the Reporting
Entity or any Subsidiary with the Securities and Exchange Commission; 
 (d) Notice of Default or Event of Default
— promptly, and in any event within five Business Days after a Responsible Officer becoming aware of the existence of any Default or Event of Default, a written notice specifying the nature and period of existence thereof and what action the
Company is taking or proposes to take with respect thereto; 
 (e) ERISA Matters — promptly, and in any event
within five Business Days after a Responsible Officer becoming aware of any of the following, a written notice setting forth the nature thereof and the action, if any, that the Company or an ERISA Affiliate proposes to take with respect thereto:

 (i) with respect to any Plan, any reportable event, as defined in Section 4043(b) of ERISA and the regulations
thereunder, for which notice thereof has not been waived pursuant to such regulations as in effect on the date hereof; or 

(ii) the taking by the PBGC of steps to institute, or the threatening in writing by the PBGC of the institution of, proceedings
under Section 4042 of ERISA for the termination of, or the appointment of a trustee to administer, any Plan, or the receipt by the Company or any ERISA Affiliate of a notice from a Multiemployer Plan that such action has been taken by the PBGC
with respect to such Multiemployer Plan; or 
 (iii) any event, transaction or condition that could result in the incurrence
of any liability by the Company or any ERISA Affiliate pursuant to Title I or IV of ERISA or the penalty or excise tax provisions of the Code relating to employee benefit plans, or in the imposition of any Lien on any of the rights, properties
or assets of the Company or any ERISA Affiliate pursuant to Title I or IV of ERISA or such penalty or excise tax provisions, if such liability or Lien, taken together with any other such liabilities or Liens then existing, would reasonably be
expected to have a Material Adverse Effect; 
 (f) Requested Information — with reasonable promptness and subject
to Section 20, such other available information relating to the business, operations, affairs, financial condition, assets or properties of the Reporting Entity or any of its Subsidiaries or relating to the ability of the Company or any
Guarantor to perform its obligations 

  
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hereunder and under the Notes or its Affiliate Guaranty as from time to time may be reasonably requested by any such holder of Notes, including any such requests in connection with a formal
request by the Securities Valuation Office of the NAIC (or any successor to the duties thereof) related to the assignment or maintenance of a designation of a rating with respect to the Notes; 

(g) Supplemental Note Purchase Agreements — promptly, and in any event within ten Business Days after the issuance
of any Supplemental Notes, a correct and complete copy of the Supplemental Note Purchase Agreement executed in connection with such issuance; and 

(h) Investigations and Litigation — promptly after a Responsible Officer of the Reporting Entity obtains knowledge
of the commencement thereof, notice of all actions, suits, investigations, litigations and proceedings before any court, governmental agency or arbitrator that would adversely affect the legality, validity and enforceability of any material
provision of this Agreement in any material respect. 
 Section 7.2. Officer’s Certificate. Each set of financial
statements furnished to a holder of Notes pursuant to Section 7.1(a) or Section 7.1(b) hereof shall be accompanied or preceded by a certificate of a Senior Financial Officer setting forth: 

(a) Covenant Compliance — the information (including detailed calculations) required in order to establish whether
the Reporting Entity was in compliance with the requirements of Section 10.2 hereof during the quarterly or annual period covered by the statements then being furnished (including with respect to each such Section, where applicable, the
calculations of the maximum or minimum amount, ratio or percentage, as the case may be, permissible under the terms of such Sections, and the calculation of the amount, ratio or percentage then in existence); provided that, notwithstanding
the foregoing, the Officer’s Certificate delivered pursuant to Section 7.2 for the quarter in which the Synergy Closing Date occurs shall not be required to include any information with respect to this Section 7.2(a) or
Section 10.2. In the event that the Reporting Entity or any Subsidiary has made an election to measure any financial liability using fair value (which election is being disregarded for purposes of determining compliance with this
Agreement pursuant to Section 22.4) as to the period covered by any such financial statement, such Senior Financial Officer’s certificate as to such period shall include a reconciliation from GAAP with respect to such election; and

 (b) Event of Default — a statement that such officer has reviewed the relevant terms hereof and has made, or
caused to be made, under his or her supervision, a review of the transactions and conditions of the Reporting Entity and its Restricted Subsidiaries from the beginning of the quarterly or annual period covered by the statements then being furnished
to the date of the certificate and that such review shall not have disclosed the existence during such period of any condition or event that constitutes a Default or an Event of Default or, if any such condition or event existed or exists
(including, without limitation, any such event or condition resulting from the failure of the Reporting Entity or any Subsidiary to comply with any Environmental Law), specifying the nature and period of existence thereof and what action the Company
shall have taken or proposes to take with respect thereto. 

  
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 Section 7.3. Electronic Delivery. Financial statements, officers’ certificates
and other materials required to be delivered by the Reporting Entity to a holder of Notes pursuant to Sections 7.1(a), (b) or (c) and Section 7.2 shall be deemed to have been delivered if (i) such
financial statements satisfying the requirements of Section 7.1(a) or (b) and related certificate satisfying the requirements of Section 7.2 are delivered to the holder of Notes by
e-mail at the email address provided to the Company by such holder in writing or (ii) the Reporting Entity shall have timely filed such Form 10-Q or Form 10-K, satisfying the requirements of Section 7.1(a) or (b) as the case may be, with the SEC on “EDGAR” and shall have made such Form available on its home page on the
worldwide web or the Company shall have made such Form available on its home page on the worldwide web (at the date of this Agreement located at www.steris.com) and shall have delivered the related certificate satisfying the requirements of
Section 7.2 to the holder of the Notes by e-mail at the email address provided to the Company by such holder in writing or (iii) such financial statements satisfying the requirements of
Section 7.1(a) or (b) and related certificate satisfying the requirements of Section 7.2 are timely posted by or on behalf of the Company in IntraLinks or on any other similar website to which each holder of Notes
has free access or (iv) the Reporting Entity shall have filed any of the items referred to in Section 7.1(c) with the SEC on “EDGAR”, and shall have made such items available on its home page on the worldwide web or the
Company shall have made such items available on its home page on the worldwide web or if any of such items are timely posted by or on behalf of the Company on IntraLinks or any other similar website to which each holder of Notes has free access;
provided however, that in the case of any of clause (ii), (iii) or (iv) the Company shall concurrently with such filing or posting give notice to each holder of Notes of such posting or filing. Each holder shall be responsible for
providing its email address to the Company on a timely basis to enable the Company to effect deliveries via email pursuant to clauses (i) or (ii) above. Notwithstanding the foregoing or any Intralinks or similar electronic delivery, the
parties agree that the provisions of Section 20 shall control the actions of the parties with respect to Confidential Information delivered to, or received by, the holders of the Notes. 

Section 7.4. Inspection. The Reporting Entity shall permit the representatives of each holder of Notes that is an Institutional
Investor: 
 (a) No Default — if no Default or Event of Default then exists, at the expense of such holder and
upon reasonable prior notice to the Reporting Entity, to visit the principal executive office of the Reporting Entity, to discuss the affairs, finances and accounts of the Reporting Entity and its Restricted Subsidiaries with a Senior Financial
Officer of the Reporting Entity, and, with the consent of the Reporting Entity (which consent will not be unreasonably withheld) to visit the other offices and properties of the Reporting Entity and each Restricted Subsidiary, all at such reasonable
times and as often as may be reasonably requested in writing; and 
 (b) Default — if a Default or Event of
Default then exists, at the expense of the Reporting Entity and upon reasonable prior notice to the Reporting Entity, to visit and inspect any of the offices or properties of the Reporting Entity or any Restricted

  
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Subsidiary, to examine all their respective books of account, records, reports and other papers, to make copies and extracts therefrom, and to discuss their respective affairs, finances and
accounts with their respective Senior Financial Officers and independent public accountants (and by this provision the Reporting Entity authorizes said accountants to discuss the affairs, finances and accounts of the Reporting Entity and its
Restricted Subsidiaries), all at such times and as often as may be reasonably requested in writing. 
 SECTION 8.
PREPAYMENT OF THE NOTES. 
 Section 8.1. Required Prepayments. No
regularly scheduled prepayment of the principal of any tranche of the Amended Notes is required prior to the final maturity thereof. 

Section 8.2. Optional Prepayments with Make-Whole Amount. (a) The Company may, at its
option, upon notice as provided below, prepay at any time all, or from time to time any part of, any Series of the Notes, in an amount not less than 10% of the aggregate principal amount of such Series of the Notes then outstanding (but if in the
case of a partial prepayment, then against each tranche within such Series of Notes in proportion to the aggregate principal amount outstanding of each tranche of such Series), at 100% of the principal amount so prepaid, together with interest
accrued thereon to the date of such prepayment, plus the Make-Whole Amount determined for the prepayment date with respect to such principal amount. The Company will give each holder of the Series of Notes to
be prepaid written notice of each optional prepayment under this Section 8.2 not less than 10 days and not more than 60 days prior to the date fixed for such prepayment. Each such notice shall specify such date, the aggregate
principal amount of the Series of the Notes to be prepaid on such date, the principal amount of each Note held by such holder to be prepaid (determined in accordance with Section 8.3), and the interest to be paid on the prepayment date
with respect to such principal amount being prepaid, and shall be accompanied by a certificate of a Senior Financial Officer as to the estimated Make-Whole Amount due in connection with such prepayment
(calculated as if the date of such notice were the date of the prepayment), setting forth the details of such computation. Two Business Days prior to such prepayment, the Company shall deliver to each holder of the Series of Notes to be prepaid a
certificate of a Senior Financial Officer specifying the calculation of such Make-Whole Amount as of the specified prepayment date. 

(b) Notwithstanding anything contained in this Section 8.2 to the contrary, if and so long as any Default or Event of Default
shall have occurred and be continuing, any prepayment of the Notes pursuant to the provisions of Section 8.2(a) shall be allocated among all of the Notes of all Series at the time outstanding in proportion, as nearly as practicable, to
the respective unpaid principal amounts thereof. 
 Section 8.3. Allocation of Partial Prepayments. In the case of any partial
prepayment of the Notes of any Series pursuant to Section 8.2, the principal amount of the Notes of such Series to be prepaid shall be allocated among each tranche of the Notes of such Series at the time outstanding in proportion, as
nearly as practicable, to the respective unpaid principal amounts of each tranche of the Notes of such Series not theretofore called for prepayment. 

Section 8.4. Maturity; Surrender, Etc. In the case of each prepayment of Notes of any Series pursuant to this Section 8, the
principal amount of each Note to be prepaid shall mature and 

  
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become due and payable on the date fixed for such prepayment, together with interest on such principal amount accrued to such date and the applicable
Make-Whole Amount, if any. From and after such date, unless the Company shall fail to pay such principal amount when so due and payable, together with the interest and
Make-Whole Amount, if any, as aforesaid, interest on such principal amount shall cease to accrue. Any Note paid or prepaid in full shall be surrendered to the Company and cancelled and shall not be reissued,
and no Note shall be issued in lieu of any prepaid principal amount of any Note. 
 Section 8.5. Purchase of Notes. The Company
will not and will not permit any Affiliate to purchase, redeem, prepay or otherwise acquire, directly or indirectly, any of the outstanding tranches of the Notes of any Series except (a) upon the payment or prepayment of each tranche of the
Notes of such Series in accordance with the terms of this Agreement or the applicable Supplemental Note Purchase Agreement pursuant to which the Notes of such Series were issued or (b) pursuant to an offer to purchase made by the Company or an
Affiliate pro rata to the holders of all Notes of such Series at the time outstanding upon the same terms and conditions. Any such offer shall provide each holder with sufficient information to enable it to make an informed decision with respect to
such offer, and shall remain open for at least 15 Business Days. If the holders of more than 51% of the principal amount of the Notes of such Series then outstanding accept such offer, the Company shall promptly notify the remaining holders of such
fact and the expiration date for the acceptance by holders of Notes of such Series of such offer shall be extended by the number of days necessary to give each such remaining holder at least 10 Business Days from its receipt of such notice to accept
such offer. The Company will promptly cancel all Notes acquired by it or any Affiliate pursuant to any payment, prepayment or purchase of Notes pursuant to any provision of this Agreement or the applicable Supplemental Note Purchase Agreement and no
Notes may be issued in substitution or exchange for any such Notes. 
 Section 8.6.
Make-Whole Amount. The term “Make-Whole Amount” means, with respect to any Note, an amount equal to the excess, if any, of the Discounted Value of
the Remaining Scheduled Payments with respect to the Called Principal of such Note over the amount of such Called Principal; provided that the Make-Whole Amount may in no event be less than zero. For
the purposes of determining the Make-Whole Amount, the following terms have the following meanings: 

“Called Principal” means, with respect to any Note, the principal of such Note that is to be prepaid pursuant
to Section 8.2 or has become or is declared to be immediately due and payable pursuant to Section 12.1, as the context requires. 

“Discounted Value” means, with respect to the Called Principal of any Note, the amount obtained by discounting
all Remaining Scheduled Payments with respect to such Called Principal from their respective scheduled due dates to the Settlement Date with respect to such Called Principal, in accordance with accepted financial practice and at a discount factor
(applied on the same periodic basis as that on which interest on the Notes is payable) equal to the Reinvestment Yield with respect to such Called Principal. 

“Reinvestment Yield” means, with respect to the Called Principal of any Note, 0.50% over the yield to maturity
implied by (a) the ask-side yields reported, as of 

  
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10:00 A.M. (New York City time) on the second Business Day preceding the Settlement Date with respect to such Called Principal, on the display designated as “Page PX1” of
the Bloomberg Financial Markets Services Screen (or, if not available, any other nationally recognized trading screen reporting on-line intraday trading in the U.S. Treasury securities) for actively
traded on-the-run U.S. Treasury securities having a maturity equal to the Remaining Average Life of such Called Principal as of such Settlement Date, or (b) if
such yields are not reported as of such time or the yields reported as of such time are not ascertainable (including by way of interpolation), the Treasury Constant Maturity Series Yields reported, for the latest day for which such yields have
been so reported as of the second Business Day preceding the Settlement Date with respect to such Called Principal, in Federal Reserve Statistical Release H.15 (519) (or any comparable successor publication) for actively traded on-the-run U.S. Treasury securities having a constant maturity equal to the Remaining Average Life of such Called Principal as of such Settlement Date. Such implied yield
will be determined, if necessary, by (i) converting U.S. Treasury bill quotations to bond-equivalent yields in accordance with accepted financial practice and (ii) interpolating linearly between
(1) the actively traded on-the-run U.S. Treasury security with the maturity closest to and greater than the Remaining Average Life and (2) the actively
traded on-the-run U.S. Treasury security with the maturity closest to and less than the Remaining Average Life. 

“Remaining Average Life” means, with respect to any Called Principal, the number of years (calculated to the
nearest one-twelfth year) obtained by dividing (a) such Called Principal into (b) the sum of the products obtained by multiplying (i) the principal component of each Remaining Scheduled Payment
with respect to such Called Principal by (ii) the number of years (calculated to the nearest one-twelfth year) that will elapse between the Settlement Date with respect to such Called Principal and the
scheduled due date of such Remaining Scheduled Payment. 
 “Remaining Scheduled Payments” means, with
respect to the Called Principal of any Note, all payments of such Called Principal and interest thereon that would be due after the Settlement Date with respect to such Called Principal if no payment of such Called Principal were made prior to its
scheduled due date; provided that if such Settlement Date is not a date on which interest payments are due to be made under the terms of the Notes, then the amount of the next succeeding scheduled interest payment will be reduced by the
amount of interest accrued to such Settlement Date and required to be paid on such Settlement Date pursuant to Section 8.2 or 12.1. 

“Settlement Date” means, with respect to the Called Principal of any Note, the date on which such Called
Principal is to be prepaid pursuant to Section 8.2 or has become or is declared to be immediately due and payable pursuant to Section 12.1, as the context requires. 

Section 8.7. Change in Control. 

(a) Notice of Change in Control or Control Event. Subject to compliance with applicable law and other Company obligations, the Company
will, within five Business Days after any 

  
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Responsible Officer has knowledge of the occurrence of any Change in Control or Control Event, give written notice of such Change in Control or Control Event to each holder of Notes unless notice
in respect of such Change in Control (or the Change in Control contemplated by such Control Event) shall have been given pursuant to subparagraph (b) of this Section 8.7. If a Change in Control has occurred, such notice shall
contain and constitute an offer to prepay Notes as described in subparagraph (c) of this Section 8.7 and shall be accompanied by the certificate described in subparagraph (g) of this Section 8.7. 

(b) Condition to Company Action. The Company will not take any action that consummates a Change in Control unless (i) at least 15
Business Days prior to such action it shall have given to each holder of Notes written notice containing and constituting an offer to prepay Notes as described in subparagraph (c) of this Section 8.7, accompanied by the certificate
described in subparagraph (g) of this Section 8.7, and (ii) subject to subparagraph (d), solely with respect to the Synergy Acquisition, within 45 days following the consummation of such Change of Control, and with respect
to all other transactions, contemporaneously with the consummation of such Change in Control, it prepays all Notes required to be prepaid in accordance with this Section 8.7. 

(c) Offer to Prepay Notes. The offer to prepay Notes contemplated by subparagraphs (a) and (b) of this
Section 8.7 shall be an offer to prepay, in accordance with and subject to this Section 8.7, all, but not less than all, of the Notes held by each holder (in this case only, “holder” in respect of any Note
registered in the name of a nominee for a disclosed beneficial owner shall mean such beneficial owner) on a date specified in such offer (the “Proposed Prepayment Date”). If such Proposed Prepayment Date is in connection with an
offer contemplated by subparagraph (a) of this Section 8.7, such date shall be (subject to subparagraph (f)) (i) solely with respect to the Synergy Acquisition, not more than 45 days after the date of such Change of Control (if
the Proposed Prepayment Date shall not be specified in such offer, the Proposed Prepayment Date shall be the 45th day after the date of such Change of Control if such day is a Business Day or the
preceding Business Day if such date is not a Business Day), and (ii) with respect to all other transactions, not less than 30 days and not more than 120 days after the date of such offer (if the Proposed Prepayment Date shall not be
specified in such offer, the Proposed Prepayment Date shall be the first Business Day after the 45th day after the date of such offer). 

(d) Acceptance/Rejection. A holder of Notes may accept the offer to prepay made pursuant to this Section 8.7 by causing a
notice of such acceptance to be delivered to the Company on or before the date specified in the certificate described in paragraph (g) of this Section 8.7. A failure by a holder of Notes to respond to an offer to prepay made
pursuant to this Section 8.7, or to accept an offer as to all the Notes held by the holder, within such time period shall be deemed to constitute rejection of such offer by such holder. 

(e) Prepayment. Prepayment of the Notes to be prepaid pursuant to this Section 8.7 shall be at 100% of the principal amount
of such Notes, together with interest on such Notes accrued to the date of prepayment, but without Make-Whole Amount or other premium. The prepayment shall be made on the Proposed Prepayment Date except as
provided in subparagraph (f) of this Section 8.7. 

  
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 (f) Deferral Pending Change in Control. The obligation of the Company to prepay Notes
pursuant to the offers required by subparagraphs (a) and (b) and accepted in accordance with subparagraph (d) of this Section 8.7 is subject to the occurrence of the Change in Control in respect of which such offers and
acceptances shall have been made. In the event that such Change in Control has not occurred on the Proposed Prepayment Date in respect thereof (or, solely with respect to the Synergy Acquisition, on the date specified as the proposed date of the
Change in Control in the Officer’s Certificate delivered pursuant to subparagraph (g)), the prepayment shall be deferred until, and shall be made on, the date on which such Change in Control occurs (or, solely with respect to the Synergy
Acquisition, the date that is the same number of Business Days after the date on which the Change in Control occurs as the Proposed Prepayment Date was after the proposed date of the Change in Control specified in the Officer’s Certificate
delivered pursuant to subparagraph (g)). Subject to compliance with applicable law and other Company obligations, the Company shall keep each holder of Notes reasonably and timely informed of (i) any such deferral of the date of prepayment,
(ii) the date on which such Change in Control and the prepayment are expected to occur, and (iii) any determination by the Company that efforts to effect such Change in Control have ceased or been abandoned (in which case the offers and
acceptances made pursuant to this Section 8.7 in respect of such Change in Control shall be deemed rescinded). 
 (g)
Officer’s Certificate. Each offer to prepay the Notes pursuant to this Section 8.7 shall be accompanied by a certificate, executed by a Senior Financial Officer of the Company and dated the date of such offer, specifying:
(i) the Proposed Prepayment Date; (ii) that such offer is made pursuant to this Section 8.7; (iii) the principal amount of each Note offered to be prepaid; (iv) the interest that would be due on each Note offered to
be prepaid, accrued to the Proposed Prepayment Date; (v) that the conditions of this Section 8.7 have been fulfilled; (vi) in reasonable detail, the nature and date or proposed date of the Change in Control; and (vii) the
last date by which any holder of a Note that wishes to accept such offer must have delivered notice thereof to the Company, which date (x) with respect to the Synergy Acquisition, shall not be earlier than three Business Days prior to the
proposed date of the Change in Control or (y) with respect to any other transaction, shall not be earlier than three Business Days prior to the Proposed Prepayment Date. 

(h) Securities Laws. The Company and Reporting Entity will comply with all applicable requirements of the Exchange Act and any other
securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the notes as a result of a Change in Control. To the extent that the provisions of any such securities laws or
regulations conflict with the provisions of this Section 8.7, the Company will comply with those securities laws and regulations and will not be deemed to have breached its obligations under this Section 8.7 by virtue of any
such conflict. 
 SECTION 9. AFFIRMATIVE COVENANTS. 

The Reporting Entity covenants that so long as any of the Notes are outstanding: 

Section 9.1. Compliance with Law. The Reporting Entity will, and will cause each of its Restricted Subsidiaries to, comply with
all laws, ordinances or governmental rules or regulations 

  
 -25- 

 
to which each of them is subject, including, without limitation, Environmental Laws, and obtain and maintain in effect all licenses, certificates, permits, franchises and other governmental
authorizations necessary to the ownership of their respective properties or to the conduct of their respective businesses, in each case to the extent necessary to ensure that non-compliance with such laws,
ordinances or governmental rules or regulations or failures to obtain or maintain in effect such licenses, certificates, permits, franchises and other governmental authorizations would not reasonably be expected, individually or in the aggregate, to
have a Material Adverse Effect. 
 Section 9.2. Insurance. The Reporting Entity will, and will cause each of its Restricted
Subsidiaries to, maintain, with financially sound and reputable insurers, insurance with respect to their respective properties and businesses against such casualties and contingencies, of such types, on such terms and in such amounts (including
deductibles, co-insurance and self-insurance, if adequate reserves are maintained with respect thereto) as the Reporting Entity reasonably deems prudent. 

Section 9.3. Maintenance of Properties. The Reporting Entity will, and will cause each of its Restricted Subsidiaries to, maintain
and keep, or cause to be maintained and kept, their respective properties in good repair, working order and condition (other than ordinary wear and tear or any casualty which would not, individually or in the aggregate, have a Material Adverse
Effect), so that the business carried on in connection therewith may be properly conducted at all times; provided that this Section 9.3 shall not prevent the Reporting Entity or any Restricted Subsidiary from discontinuing the
operation and the maintenance of any of its properties if such discontinuance is desirable in the conduct of its business and the Reporting Entity has concluded that such discontinuance would not, individually or in the aggregate, have a Material
Adverse Effect. 
 Section 9.4. Payment of Taxes. The Reporting Entity will, and will cause each of its Restricted Subsidiaries
to, file all income tax or similar tax returns required to be filed in any jurisdiction and to pay and discharge all taxes shown to be due and payable on such returns and all other taxes, assessments, governmental charges, or levies payable by any
of them, to the extent such taxes and assessments have become due and payable and before they have become delinquent; provided that neither the Reporting Entity nor any Restricted Subsidiary need pay any such tax or assessment if (a) the
amount, applicability or validity thereof is contested by the Reporting Entity or such Restricted Subsidiary on a timely basis in good faith and in appropriate proceedings, and the Reporting Entity or a Restricted Subsidiary has established adequate
reserves therefor in accordance with GAAP (or English GAAP, as applicable) on the books of the Reporting Entity or such Subsidiary or (b) the nonpayment of all such taxes and assessments in the aggregate would not reasonably be expected to have
a Material Adverse Effect. 
 Section 9.5. Corporate Existence, Etc. Except as permitted by Section 10.4, the
Reporting Entity will at all times preserve and keep in full force and effect its legal existence. Except as permitted by Sections 10.4 and 10.5, the Reporting Entity will at all times preserve and keep in full force and effect
the legal existence of each of its Restricted Subsidiaries (unless merged into the Restricted Entity or a Restricted Subsidiary) and all rights and franchises of the Reporting Entity and its Restricted Subsidiaries unless, in the good faith judgment
of the Reporting Entity, the termination of or failure to preserve and keep in full force and effect such corporate existence, right or franchise would not, individually or in the aggregate, have a Material Adverse Effect. 

  
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 Section 9.6. Notes to Rank Pari Passu. The Notes and all other obligations under this
Agreement of the Company are and at all times shall rank at least pari passu in right of payment with all other present and future unsecured Debt (actual or contingent) of the Company which is not expressed to be subordinate or junior in rank to any
other unsecured Debt of the Company. 
 Section 9.7. Guaranty. The Reporting Entity will cause each Affiliate (other than the
Company) which delivers a Guaranty of outstanding borrowings or available borrowing capacity (subject only to customary conditions) under a Material Credit Facility or becomes an obligor, co-obligor, borrower
or co-borrower of outstanding borrowings or has available borrowing capacity (subject only to customary conditions) under a Material Credit Facility to concurrently enter into an Affiliate Guaranty, and as
promptly as reasonably practicable will deliver to each of the holders of the Notes the following items: 
 (a) an executed
counterpart of the joinder agreement pursuant to which such Affiliate has become bound by the Affiliate Guaranty; 
 (b) a
certificate signed by the President, a Vice President or another authorized Responsible Officer of such Affiliate making representations and warranties to the effect of those contained in Sections 5.1, 5.2, 5.6 and 5.7, but with
respect to such Affiliate and the Affiliate Guaranty, as applicable; 
 (c) such documents and evidence with respect to such
Affiliate as the Required Holders may reasonably request in order to establish the existence and, if applicable, good standing of such Affiliate and the authorization of the transactions contemplated by the Affiliate Guaranty; 

(d) an opinion of counsel reasonably satisfactory to the Required Holders to the effect that such Affiliate Guaranty has been
duly authorized, executed and delivered and constitutes the legal, valid and binding contract and agreement of such Affiliate enforceable in accordance with its terms, subject to customary exceptions, assumptions and qualifications; provided that an
opinion from a nationally recognized law firm and/or in-house counsel of the Company shall be reasonably satisfactory to the Required Holders; and 

(e) with respect to any Foreign Guarantor, evidence of the acceptance by the Company or CT Corporation System, as applicable,
of the appointment of designation provided for by Section 8 of the Affiliate Guaranty, as such Guarantor’s agent to receive, for it and on its behalf, service of process, for the period from the date of such Affiliate Guaranty to
August 15, 2021. 
 For the avoidance of doubt, New STERIS Limited is not a guarantor of outstanding borrowings or available borrowing
capacity (subject only to customary conditions) under, and is not an obligor, co-obligor, borrower or co-borrower of outstanding borrowings or that has available 

  
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borrowing capacity (subject only to customary conditions), in each case under the Bank Credit Agreement and Amended and Restated 364-Day Bridge Credit Agreement dated as of March 31, 2015
between the Company and New STERIS Limited, as borrowers and guarantors, Solar US Parent Co. as retiring borrower, Bank of America, as administrative agent and the other agents and lenders party thereto, as in effect on the date hereof prior to the
Synergy Closing Date. 
 Section 9.8. Security. If at any time, pursuant to the terms and conditions of a Material Credit
Facility, the Reporting Entity or any existing or newly acquired or formed Subsidiary shall pledge, grant, assign or convey to the Creditors thereunder, or any one or more of them, a Lien on the assets of the Reporting Entity or any Subsidiary, the
Reporting Entity or such Subsidiary shall execute and concurrently deliver to the Collateral Agent for the benefit of the holders of the Notes a security agreement in substantially the same form as delivered to such Creditors, or any one or more of
them, or the Lien granted for the benefit of such Creditors shall also be for the benefit of the holders of the Notes and the Reporting Entity shall deliver, or shall cause to be delivered, to the holders of the Notes (a) all such certificates,
resolutions, legal opinions and other related items in substantially the same forms as those delivered to and accepted by such Creditors and such other documentation reasonably acceptable to the Required Holders in substance and in form, including,
without limitation, an intercreditor agreement and opinions of counsel from counsel that is reasonably accepted to the Required Holders (provided that, an opinion from a nationally recognized law firm and/or in-house counsel of the Company shall be
reasonably satisfactory to the Required Holders) and (b) all such amendments to this Agreement and the Collateral Documents as may reasonably be deemed necessary by the holders of the Notes in order to reflect the existence of such Lien on the
assets of the Reporting Entity or such Subsidiary, as applicable, and the Company’s compliance with the requirements of Section 9.6 with respect to any such security granted to or for the benefit of the holders of the Notes and to
or for the benefit of such Creditors. This Section 9.8 shall not apply to any pledge, grant, assignment, conveyance or Lien contemplated to be granted to any of the agents, lenders or their affiliates in connection with any cash
collateral in connection with letters of credit contemplated under the Bank Credit Agreement or any substantially similar pledge, grant, assignment, conveyance or Lien contemplated by any other Material Credit Facility. 

Section 9.9. Restricted Subsidiaries. (a) Subject to paragraphs (b) and (c) below the Reporting Entity will at all
times, (i) maintain the aggregate value of the assets of the Reporting Entity and the then existing Restricted Subsidiaries, at not less than 92.5% of Consolidated Total Assets and (ii) ensure that not less than 92.5% of Consolidated
EBITDA for each period is attributable to the Reporting Entity and the then existing Restricted Subsidiaries. 
 (b) If at any time,
(i) the aggregate consolidated value of the assets of the Reporting Entity and the then existing Restricted Subsidiaries does not account for 92.5% or more of Consolidated Total Assets or (ii) less than 92.5% of Consolidated EBITDA for a
period is attributable to the Reporting Entity and the then existing Restricted Subsidiaries, the Company shall promptly designate, pursuant to Section 10.7, such other Subsidiaries of the Reporting Entity (which would not otherwise be
Restricted Subsidiaries) to be Restricted Subsidiaries hereunder so that such 92.5% thresholds are satisfied. 

  
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 (c) Without limiting the foregoing, in the event the Company is not the Reporting Entity, the
Company shall, and shall cause each Guarantor to, be and remain (until such time as such entity is no longer a Guarantor) a Restricted Subsidiary. 

Section 9.10. Transactions with Affiliates. The Reporting Entity will, and will cause its Restricted Subsidiaries to, conduct all
material transactions otherwise permitted under this Agreement with any of their Affiliates (excluding the members of the Consolidated Group) on terms that are fair and reasonable and no less favorable to the Reporting Entity or such Restricted
Subsidiary than it would obtain in a comparable arm’s-length transaction with a Person not an Affiliate; provided that the restrictions of this Section 9.10 shall not apply to the following: 

(a) the payment of dividends or other distributions (whether in cash, securities or other property) with respect to any Equity
Interests in a member of the Consolidated Group, or any payment (whether in cash, securities or other property), including any sinking fund or similar deposit, on account of the purchase, redemption, retirement, acquisition, cancellation or
termination of any such Equity Interests in such Person or any option, warrant or other right to acquire any such Equity Interests in such Person; 

(b) payment of, or other consideration in respect of, compensation to, the making of loans to and payment of fees and expenses
of and indemnities to officers, directors, employees or consultants of a member of the Consolidated Group and payment, or other consideration in respect of, directors’ and officers’ indemnities; 

(c) transactions pursuant to any agreement to which a member of the Consolidated Group is a party on the date hereof and set
forth in Schedule 9.10; 
 (d) transactions with joint ventures for the purchase or sale of property or other
assets and services entered into in the ordinary course of business and in a manner consistent with past practices; 
 (e)
transactions ancillary to or in connection with the Transactions; 
 (f) transactions approved by a majority of Disinterested
Directors of the Company or of the relevant member of the Consolidated Group in good faith; or 
 (g) any transaction in
respect of which the Reporting Entity delivers to the holder of the Notes a letter addressed to the board of directors of the Reporting Entity (or the board of directors of the relevant member of the Consolidated Group) from an accounting, appraisal
or investment banking firm that is in the good faith determination of the Reporting Entity qualified to render such letter, which letter states that such transaction is on terms that are no less favorable to the Reporting Entity or the relevant
member of the Consolidated Group, as applicable, than would be obtained in a comparable arm’s length transaction with a Person that is not an Affiliate. 

  
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 SECTION 10. NEGATIVE COVENANTS. 

The Reporting Entity covenants that so long as any of the Notes are outstanding: 

Section 10.1. Subsidiary Indebtedness. The Reporting Entity will not permit any member of the Consolidated Group that is not the
Company or a Guarantor to incur Debt of any kind; provided that this Section 10.1 shall not apply to any of the following (without duplication): 

(a) Debt incurred under this Agreement, any Notes and any Affiliate Guaranty; 

(b) Debt of any member of the Consolidated Group to any member of the Consolidated Group; provided that such Debt shall
not have been transferred to any other Person (other than to any member of the Consolidated Group); 
 (c) Debt outstanding
on the Closing Date and set forth on Schedule 5.15, and any extension, renewal, refinancing, refunding, replacement or restructuring (or successive extensions, renewals, refinancings, refundings, replacements or restructurings) of any
such Debt from time to time (in whole or in part), provided that the outstanding principal amount of any such Debt may only be increased to the extent any such increase is permitted to be incurred under any other clause of this
Section 10.1; 
 (d) (i) Debt of any member of the Consolidated Group incurred to finance the acquisition,
construction or improvement of any fixed or capital assets, including Capital Leases and any Debt assumed in connection with the acquisition of any such assets (provided that such Debt is incurred or assumed prior to or within 90 days
after such acquisition or the completion of such construction or improvement and the principal amount of such Debt does not exceed the cost of acquiring, constructing or improving such fixed or capital assets) and (ii) any extension, renewal,
refinancing, refunding, replacement or restructuring (or successive extensions, renewals, refinancings, refundings, replacements or restructurings) of any such Debt from time to time (in whole or in part), provided that the aggregate
principal amount of Debt permitted by this Section 10.1(d) shall not exceed $75,000,000; 
 (e) Debt under or
related to Hedge Agreements entered into for non-speculative purposes; 
 (f) letters
of credit, bank guarantees, warehouse receipts or similar instruments issued to support performance obligations and trade letters of credit (other than obligations in respect of other Debt) in the ordinary course of business; 

(g) Debt of Receivables Subsidiaries in respect of Permitted Receivables Facilities in an aggregate principal amount at any
time outstanding not to exceed $250,000,000; 
 (h) (i) any other Debt (not otherwise permitted under this Agreement),
and (ii) any extension, renewal, refinancing, refunding, replacement or restructuring (or 

  
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successive extensions, renewals, refinancings, refundings, replacements or restructurings) of Debt outstanding under this Section 10.1(h), provided that, the aggregate
principal amount of Priority Debt at the time such Debt is incurred shall not exceed 8.5% of Consolidated Total Assets (except that refinancing Debt incurred in reliance on clause (ii) of this Section 10.1(h) will in any event be
permitted (but will utilize basket capacity under this Section 10.1(h)) so long as the principal amount of such Debt does not exceed the principal amount of the Debt refinanced); 

(i) Debt owed to any officers or employees of any member of the Consolidated Group; provided that the aggregate
principal amount of all such Debt shall not exceed $10,000,000 at any time outstanding; 
 (j) guarantees of any Debt
permitted pursuant to this Section 10.1; 
 (k) Debt in respect of bid, performance, surety bonds or completion
bonds issued for the account of any member of the Consolidated Group in the ordinary course of business, including guarantees or obligations of any member of the Consolidated Group with respect to letters of credit supporting such bid, performance,
surety or completion obligations; 
 (l) Debt incurred or arising from or as a result of agreements providing for
indemnification, deferred payment obligations, purchase price adjustments, earn-out payments or similar obligations; 

(m) Debt in connection with overdue accounts payable which are being contested in good faith and for which adequate reserves
have been established in accordance with GAAP; 
 (n) Debt arising or incurred as a result of or from the adjudication or
settlement of any litigation or from any arbitration or mediation award or settlement, in any case involving any member of the Consolidated Group, provided that the judgment, award(s) and/or settlements to which such Debt relates would not
constitute an Event of Default under Section 11(i); 
 (o) Debt in respect of netting services, automatic
clearing house arrangements, employees’ credit or purchase cards, overdraft protections and similar arrangements in each case incurred in the ordinary course of business; and 

(p) (i) Debt of any Person which becomes a Restricted Subsidiary after the Closing Date or is merged with or into or
consolidated or amalgamated with any Restricted Subsidiary after the Closing Date and Debt expressly assumed in connection with the acquisition of an asset or assets from any other Person; provided that (A) such Debt existed at the time
such Person became a Restricted Subsidiary or of such merger, consolidation, amalgamation or acquisition and was not created in anticipation thereof, (B) immediately after such Person becomes a Restricted Subsidiary or such merger,
consolidation, amalgamation or acquisition, (x) no Default shall have occurred and be continuing and 

  
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(y) the Reporting Entity shall be in compliance with Section 10.2 on a pro forma basis and (C) such Debt is not (a) Debt of Synergy Health plc or its Subsidiaries
outstanding under the Existing Synergy Credit Agreement, (b) the Existing Synergy Notes, (c) Debt of Synergy Health plc or its Subsidiaries characterized as Capital Leases to the extent such Debt is in excess of $75,000,000 or
(d) other Debt of Synergy Health plc or its Subsidiaries to the extent such Debt is in excess of $30,000,000; and (ii) any extension, renewal, refinancing, refunding, replacement or restructuring (or successive extensions, renewals,
refinancings, refundings, replacements or restructurings) of any such Debt from time to time (in whole or in part), provided that the outstanding principal amount of any such Debt may only be increased to the extent any such increase is
permitted to be incurred under any other clause of this Section 10.1. 
 Section 10.2. Financial Covenants.
(a) Prior to the closing date of the Synergy Acquisition (the “Synergy Closing Date”) the following shall apply: 

(i) beginning on the last day of the first fiscal quarter ending on or after the Closing Date and on the last day of each
fiscal quarter ending thereafter, the Reporting Entity will not permit, as of the last day of any such fiscal quarter, the ratio of (x) Consolidated Total Debt at such time to (y) Consolidated EBITDA for the four consecutive fiscal quarter
period ending as of such date to exceed 3.50 to 1.00; provided, that the ratio referenced in this Section 10.2(a)(i) shall be increased by 0.25 to 1.00 after a Material Acquisition for a period of four fiscal quarters after the date of
such Material Acquisition; and 
 (ii) beginning on the last day of the first fiscal quarter ending on or after the Closing
Date and on the last day of each fiscal quarter ending thereafter, the Reporting Entity will not permit, as of the last day of any such fiscal quarter, the ratio of Consolidated EBITDA to Consolidated Interest Expense for the period of four fiscal
quarters ending on such date, to be less than 3.00:1.00. 
 (b) Notwithstanding the foregoing, after the Synergy Closing Date the following
shall apply: 
 (i) beginning on the last day of the first full fiscal quarter ending after the Synergy Closing Date and on
the last day of each fiscal quarter ending thereafter, the Reporting Entity will not permit, as of the last day of any such fiscal quarter, the ratio of (x) Consolidated Total Debt at such time to (y) Consolidated EBITDA for the four
consecutive fiscal quarter period ending as of such date to exceed, for the last day of the first four full fiscal quarters ending after the Synergy Closing Date, 3.75 to 1.00, and for the last day of each fiscal quarter thereafter, 3.50 to 1.00;
provided, that the ratio referenced in this Section 10.2(b)(i) shall be increased by 0.25 to 1.00 after a Material Acquisition (other than the Synergy Acquisition) for a period of four fiscal quarters after the date of such Material
Acquisition; and provided, further, that notwithstanding the foregoing, to the extent the Bridge Facility is funded and outstanding, in no event shall the maximum leverage ratio under this Section 10.2(b)(i) be greater than the maximum
leverage ratio set forth in the Bridge Facility; and 

  
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 (ii) beginning on the last day of the first full fiscal quarter ending after the
Synergy Closing Date and on the last day of each fiscal quarter ending thereafter, the Reporting Entity will not permit, as of the last day of any such fiscal quarter, the ratio of Consolidated EBITDA to Consolidated Interest Expense for the period
of four fiscal quarters ending on such date, to be less than 3.00:1.00. 
 Section 10.3. Limitation on Liens. The Reporting
Entity will not, and will not permit any Restricted Subsidiary to, create, assume or suffer to exist any Lien upon any of its property or assets (other than Unrestricted Margin Stock), whether now owned or hereafter acquired; provided that
this Section shall not apply to the following: 
 (a) Liens for taxes not yet due or that are being actively contested
in good faith by appropriate proceedings and for which adequate reserves have been established in accordance with GAAP; 

(b) other statutory, common law or contractual Liens incidental to the conduct of its business or the ownership of its property
and assets that (A) were not incurred in connection with the borrowing of money or the obtaining of advances or credit, and (B) do not in the aggregate materially detract from the value of its property or assets or materially impair the
use thereof in the operation of its business; 
 (c) pledges or deposits in the ordinary course of business in connection
with workers’ compensation, unemployment insurance and other social security legislation, other than any Lien imposed by ERISA; 

(d) deposits to secure the performance of bids, trade contracts and leases (other than Debt), statutory obligations, surety
bonds (other than bonds related to judgments or litigation), performance bonds and other obligations of a like nature incurred in the ordinary course of business; 

(e) Liens on property or assets to secure obligations owing to any member of the Consolidated Group; 

(f) (A) purchase money Liens on fixed assets or for the deferred purchase price of property, provided that such
Lien is limited to the purchase price and only attaches to the property being acquired and (B) Capital Leases; 
 (g)
easements, zoning restrictions or other minor defects or irregularities in title of real property not interfering in any material respect with the use of such property in the business of any member of the Consolidated Group; 

(h) Liens existing on the date of this Agreement and set forth on Schedule 5.15; 

  
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 (i) Liens on Receivables Related Assets of a Receivables Subsidiary in connection
with the sale of such Receivables Related Assets pursuant to Section 10.5(c) hereof; 
 (j) in addition to the
Liens permitted herein, additional Liens securing Debt or other obligations; provided that, the aggregate principal amount of Priority Debt at the time such Debt or such other obligation is created or incurred shall not exceed an amount equal to
8.5% of the Consolidated Total Assets; provided further, that notwithstanding the foregoing and without limiting Section 9.8, the Reporting Entity shall not, and shall not permit any of its Restricted Subsidiaries to, secure
pursuant to this Section 10.3(j) any Debt outstanding under or pursuant to any Material Credit Facility unless and until the Notes (and any guaranty delivered in connection therewith) shall concurrently be secured equally and ratably
with such Indebtedness pursuant to documentation reasonably acceptable to the Required Holders in substance and in form, including, without limitation, an intercreditor agreement and opinions of counsel to the Reporting Entity and/or any such
Restricted Subsidiary, as the case may be, from counsel that is reasonably acceptable to the Required Holders (provided that an opinion from a nationally recognized law firm and/or in-house counsel of the Company shall be reasonably satisfactory to
the Required Holders); 
 (k) Permitted Encumbrances; 

(l) any Lien existing on any property or asset prior to the acquisition thereof by any member of the Consolidated Group or
existing on any property or assets of any Person at the time such Person becomes a Restricted Subsidiary after the Closing Date; provided that (i) such Lien is not created in contemplation of or in connection with such acquisition or
such Person becoming a Restricted Subsidiary, as the case may be, and (ii) such Lien does not apply to any other property or assets of any member of the Consolidated Group (other than Persons who become members of the Consolidated Group in
connection with such acquisition); 
 (m) Liens arising in connection with any margin posted related to Hedge Agreements
entered other than for speculative purposes; 
 (n) any extension, renewal or replacement (or successive renewals or
replacements) in whole or in part of any Lien referred to in Sections 10.3(f), 10.3(h), 10.3(j) and 10.3(l); provided that (x) the principal amount of the obligations secured thereby shall be limited to the
principal amount of the obligations secured by the Lien so extended, renewed or replaced (and, to the extent provided in such clauses, extensions, renewals and replacements thereof) and (y) such Lien shall be limited to all or a part of the
assets that secured the obligation so extended, renewed or replaced and (z) in the case of any extension, renewal or replacement (or successive renewals or replacements) in whole or in part of any Lien referred to in clause (j) such
extension, renewal or replacement (or successive renewals or replacements) shall utilize basket capacity under clause (j) prior to any excess amount not permitted thereunder being permitted under this clause (n); and 

  
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 (o) Liens on the products and proceeds (including, without limitation, insurance
condemnation and eminent domain proceeds) of and accessions to, and contract or other rights (including rights under insurance policies and product warranties) derivative of or relating to, property subject to Liens under any of the paragraphs of
this Section 10.3. 
 Section 10.4. Mergers and Consolidations, Etc. The Reporting Entity will not, and will not permit any
Restricted Subsidiary to, merge or consolidate with or into, or convey, transfer, lease or otherwise dispose of (whether in one transaction or in a series of transactions) all or substantially all of its assets (other than Unrestricted Margin Stock)
(whether now owned or hereafter acquired) to, any Person, except that: 
 (a) any member of (x) the Consolidated Group
other than the Company and the Reporting Entity (if the Reporting Entity is New STERIS Limited) may merge or consolidate with or into any other member of the Consolidated Group or (y) the Consolidated Group may convey, transfer, lease or
otherwise dispose of (whether in one transaction or in a series of transactions) all or substantially all of its assets to any other member of the Consolidated Group; and 

(b) the Company and the Reporting Entity (if the Reporting Entity is New STERIS Limited) may merge or consolidate with or into
any other Person (including, but not limited to, to any member of the Consolidated Group) so long as (A) the Company or the Reporting Entity (if the Reporting Entity is New STERIS Limited) is the surviving entity or (B) the surviving
entity shall succeed, by agreement or by operation of law, to all of the businesses and operations of the Company or the Reporting Entity (if the Reporting Entity is New STERIS Limited) and shall assume all of the rights and obligations of the
Company or the Reporting Entity (if the Reporting Entity is New Steris Limited) under this Agreement and the Notes and any other Security Documents to which it is a party; and 

(c) any member of the Consolidated Group (other than the Company and the Reporting Entity (if the Reporting Entity is New
STERIS Limited)) may merge or consolidate with or into another Person, convey, transfer, lease or otherwise dispose of (whether in one transaction or in a series of transactions) all or substantially all of its assets so long as (A) the
consideration received in respect of such merger, consolidation, conveyance, transfer, lease or other disposition is at least equal to the fair market value of such assets as determined in good faith by the Reporting Entity and (B) no Covenant
Material Adverse Effect would reasonably be expected to result from such merger, consolidation, conveyance, transfer, lease or other disposition; and 

(d) any member of the Consolidated Group (other than the Company and the Reporting Entity (if the Reporting Entity is New
STERIS Limited)) may merge or consolidate with or into, or convey, transfer, lease or otherwise dispose of (whether in one transaction or in a series of transactions) all or substantially all of its assets to another Person to effect (A) a
transaction permitted by Section 10.5 (other than Section 10.5(g)(ii) thereof) or (B) a merger or consolidation with or into such Person where such merger or consolidation results in such Person or the entity into which
such Person is merged or consolidated becoming a member of the Consolidated Group; 

  
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 provided, in the cases of clause (a), (b) and (c) hereof, that no Default or Event of
Default shall have occurred and be continuing at the time of such proposed transaction or would result therefrom; provided further that nothing herein shall restrict any merger, consolidation, conveyance, transfer, lease or other disposition
made in connection with the Synergy Acquisition. 
 Section 10.5. Dispositions. The Reporting Entity will not, and will not
permit any Restricted Subsidiary to, convey, sell, assign, transfer or otherwise dispose of (each a “Disposition”) any of its property or assets outside the ordinary course of business, other than to any member of the Consolidated
Group, except for: 
 (a) Dispositions of assets and property that are (i) obsolete, worn, damaged, uneconomic or
otherwise deemed by any member of the Consolidated Group to no longer be necessary or useful in the operation of such member of the Consolidated Group’s current or anticipated business or (ii) replaced by other assets or property of
similar suitability and value; 
 (b) Dispositions of cash and Cash Equivalents; 

(c) Dispositions of accounts receivable (i) in connection with the compromise or collection thereof, (ii) deemed
doubtful or uncollectible in the reasonable discretion of any member of the Consolidated Group, (iii) obtained by any member of the Consolidated Group in the settlement of joint interest billing accounts, (iv) granted to settle collection
of accounts receivable or the sale of defaulted accounts arising in connection with the compromise or collection thereof and not in connection with any financing transaction or (v) in connection with a Permitted Receivables Facility; 

(d) any other Disposition (not otherwise permitted under this Agreement) of any assets or property; provided that after
giving effect thereto, the Reporting Entity would be in pro forma compliance with the covenants set forth in Section 10.2; 

(e) Dispositions by any member of the Consolidated Group of all or any portion of any Subsidiary that is not a Material
Subsidiary; 
 (f) leases, licenses, subleases or sublicenses by any member of the Consolidated Group of intellectual
property in the ordinary course of business; 
 (g) Dispositions arising as a result of (i) the granting or incurrence
of Liens permitted under Section 10.3 or (ii) transactions permitted under Section 10.4 (other than Section 10.4(c)) of this Agreement; 

(h) any Disposition or series of related Dispositions that does not individually or in the aggregate exceed $5,000,000; 

(i) Dispositions constituting terminations or expirations of leases, licenses and other agreements in the ordinary course of
business; and 

  
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 (j) contributions of assets in the ordinary course of business to joint ventures
entered into in the ordinary course of business. 
 Section 10.6. Changes in Accounting. The Reporting Entity will not change
its fiscal year-end from March 31 of each calendar year. 
 Section 10.7. Designation
of Subsidiaries. Subject to Section 9.9, the Company may designate or redesignate any Unrestricted Subsidiary of the Reporting Entity as a Restricted Subsidiary and may designate or redesignate any Restricted Subsidiary of the
Reporting Entity as an Unrestricted Subsidiary; provided that: 
 (a) the Company shall have given not less than
10 days’ prior written notice to the holders of the Notes that a Senior Financial Officer has made such determination; 

(b) at the time of such designation or redesignation and immediately after giving effect thereto, no Default or Event of
Default would exist; 
 (c) in the case of the designation of a Restricted Subsidiary of the Reporting Entity as an
Unrestricted Subsidiary and after giving effect thereto, (i) such Unrestricted Subsidiary so designated shall not, directly or indirectly, own any capital stock of the Reporting Entity or any Restricted Subsidiary and (ii) such designation
shall be deemed a sale of assets and would be permitted by the provisions of Section 10.5; 
 (d) in the case of
the designation of an Unrestricted Subsidiary of the Reporting Entity as a Restricted Subsidiary and after giving effect thereto: (i) all outstanding Debt of such Restricted Subsidiary so designated would be permitted within the applicable
limitations of Section 10.2 and (ii) all existing Liens of such Restricted Subsidiary so designated would be permitted within the applicable limitations of Section 10.3 (other than Section 10.3(h),
notwithstanding that any such Lien existed as of the Closing Date); 
 (e) in the case of the designation of a Restricted
Subsidiary of the Reporting Entity as an Unrestricted Subsidiary, such Restricted Subsidiary shall not at any time after the Closing Date have previously been designated as an Unrestricted Subsidiary more than twice; and 

(f) in the case of the designation of an Unrestricted Subsidiary of the Reporting Entity as a Restricted Subsidiary, such
Unrestricted Subsidiary shall not at any time after the Closing Date have previously been designated as a Restricted Subsidiary more than twice. 

Notwithstanding the foregoing or anything herein to the contrary, each Subsidiary of the Reporting Entity shall be a Restricted Subsidiary unless the Company
has designated it as an Unrestricted Subsidiary. 
 Section 10.8. Terrorism Sanctions Regulations. The Reporting Entity will not
and will not permit any Controlled Entity (a) to become (including by virtue of being owned or controlled by a 

  
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Blocked Person), own or control a Blocked Person or any Person that is the target of sanctions imposed by the United Nations or by the European Union, or (b) directly or indirectly to have
any investment in or engage in any dealing or transaction (including, without limitation, any investment, dealing or transaction involving the proceeds of the Notes) with any Person if such investment, dealing or transaction (i) would cause any
holder to be in violation of any laws or regulations administered by OFAC or any laws or regulations referred to in Section 5.16, or (ii) is prohibited by or subject to sanctions under any U.S. Economic Sanctions, or (c) to
engage, nor shall any Affiliate of either engage, in any activity that could subject such Person or any holder to sanctions under CISADA or any similar law or regulation with respect to Iran or any other country that is subject to U.S. Economic
Sanctions. 
 SECTION 11. EVENTS OF DEFAULT. 

An “Event of Default” shall exist if any of the following conditions or events shall occur and be continuing: 

(a) the Company defaults in the payment of any principal or Make-Whole Amount, if any,
on any Note when the same becomes due and payable, whether at maturity or at a date fixed for prepayment or by declaration or otherwise; or 

(b) the Company defaults in the payment of any interest on any Note for more than five Business Days after the same becomes due
and payable; or 
 (c) the Reporting Entity or the Company (if the Company is not the Reporting Entity) defaults in the
performance of or compliance with any term contained in Section 10.2; or 
 (d) the Reporting Entity or the
Company (if the Company is not the Reporting Entity) defaults in the performance of or compliance with any term contained herein (other than those referred to in paragraphs (a), (b) and (c) of this Section 11) or in any
Security Document and such default is not remedied within 30 days after the earlier of (i) a Senior Financial Officer obtaining actual knowledge of such default and (ii) the Company receiving written notice of such default from any
holder of a Note (any such written notice to be identified as a “notice of default” and to refer specifically to this paragraph (d) of Section 11); or 

(e) any representation or warranty made in writing by or on behalf of the Company (and, in connection with any Supplemental
Closing, the Reporting Entity if the Company is not the Reporting Entity) or by any officer of the Company (and, in connection with any Supplemental Closing, the Reporting Entity if the Company is not the Reporting Entity) ) in this Agreement or by
a Guarantor in its Affiliate Guaranty or in any writing furnished in connection with the transactions contemplated hereby proves to have been false or incorrect in any material respect on the date as of which made and the facts underlying such
representation or warranty shall not have been changed to make such representation and warranty true and correct within 30 days after the earlier of (i) a Responsible Officer obtaining actual knowledge of such default and (ii) the
Company 

  
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receiving written notice of such default from any holder of a Note (any such written notice to be identified as a “notice of default” and to refer specifically to this
paragraph (e) of Section 11); or 
 (f) (i) the Reporting Entity or any Significant Restricted
Subsidiary is in default (as principal or as guarantor or other surety) in the payment of any principal of or premium or make-whole amount or interest on any Debt that is outstanding in an aggregate principal
amount of at least the greater of (A) $40,000,000 and (B) 5% of Consolidated Total Assets beyond any period of grace provided with respect thereto, or (ii) the Reporting Entity or any Significant Restricted Subsidiary is in default in
the performance of or compliance with any term of any evidence of any Debt in an aggregate outstanding principal amount of at least the greater of (A) $40,000,000 and (B) 5% of Consolidated Total Assets or of any mortgage, indenture or
other agreement relating thereto or any other condition exists, and as a consequence of such default or condition such Debt has become, or has been declared (or one or more Persons are entitled to declare such Debt to be), due and payable before its
stated maturity or before its regularly scheduled dates of payment without such acceleration having been rescinded or annulled within any applicable grace period; or 

(g) the Reporting Entity or any Significant Restricted Subsidiary (i) is generally not paying, or admits in writing its
inability to pay, its debts as they become due, (ii) files a petition for relief or reorganization or arrangement or any other petition in bankruptcy, for liquidation or to take advantage of any bankruptcy, insolvency, reorganization,
moratorium or other similar law of any jurisdiction or has an involuntary proceeding or case filed against it and the same shall continue undismissed for a period of 60 days from commencement of such proceeding or case, (iii) makes an
assignment for the benefit of its creditors, (iv) consents to the appointment of a custodian, receiver, trustee or other officer with similar powers with respect to it or with respect to any substantial part of its property, (v) is
adjudicated as insolvent or to be liquidated, (vi) takes corporate action for the purpose of any of the foregoing or (vii) any event occurs with respect to the Reporting Entity or any Significant Restricted Subsidiary which under the laws
of any jurisdiction is analogous to any of the events described in this Section 11(g), provided that the applicable grace period, if any, which shall apply shall be the one applicable to the relevant proceeding in such
jurisdiction which most closely corresponds to the proceeding described in this Section 11(g); or 
 (h) a court
or Governmental Authority of competent jurisdiction enters an order appointing, without consent by the Reporting Entity or any of its Significant Restricted Subsidiaries, a custodian, receiver, trustee or other officer with similar powers with
respect to it or with respect to any substantial part of its property, or constituting an order for relief or approving a petition for relief or reorganization or any other petition in bankruptcy or for liquidation or to take advantage of any
bankruptcy or insolvency law of any jurisdiction, or ordering the dissolution, winding-up or liquidation of the Company or any of its Significant Restricted Subsidiaries, or any such petition shall be filed
against the Reporting Entity or any of its Significant Restricted Subsidiaries, and such order, petition or other such relief remains in effect and shall not be dismissed or stayed for a period of 60

  
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consecutive days or any event occurs with respect to the Reporting Entity or any Significant Restricted Subsidiary which under the laws of any jurisdiction is analogous to any of the events
described in this Section 11(h), provided that the applicable grace period, if any, which shall apply shall be the one applicable to the relevant proceeding in such jurisdiction which most closely corresponds to the proceeding
described in this Section 11(h); or 
 (i) a final judgment or judgments for the payment of money aggregating in
excess of the greater of (A) $25,000,000 and (B) 2% of Consolidated Total Assets (excluding for purposes of such determination such amount of any insurance proceeds paid or to be paid by or on behalf of the Reporting Entity or any of its
Significant Restricted Subsidiaries in respect of such judgment or judgments or unconditionally acknowledged in writing to be payable by the insurance carrier that issued the related insurance policy) are rendered against one or more of the
Reporting Entity and its Significant Restricted Subsidiaries and which judgments are not, within 60 days after entry thereof, bonded, discharged or stayed pending appeal, or are not discharged within 60 days after the right to appeal has
expired; or 
 (j) if (i) any Plan shall fail to satisfy the minimum funding standards of ERISA or the Code for any plan
year or part thereof or a waiver of such standards or extension of any amortization period is sought or granted under Section 412 of the Code, (ii) a notice of intent to terminate any Plan, other than a voluntary termination, shall have
been or is reasonably expected to be filed with the PBGC or the PBGC shall have instituted proceedings under ERISA Section 4042 to terminate or appoint a trustee to administer any Plan or the PBGC shall have notified the Company or any ERISA
Affiliate that a Plan may become a subject of any such proceedings, (iii) the aggregate “amount of unfunded benefit liabilities” (within the meaning of Section 4001(a)(18) of ERISA) under all Plans, determined in accordance
with Title IV of ERISA, shall exceed an amount which would cause a Material Adverse Effect, (iv) the Reporting Entity or any ERISA Affiliate shall have incurred or is reasonably expected to incur any liability pursuant to Title I or IV of
ERISA or the penalty or excise tax provisions of the Code relating to employee benefit plans, (v) the Reporting Entity or any ERISA Affiliate withdraws from any Multiemployer Plan, or (vi) the Reporting Entity or any Restricted Subsidiary
establishes or amends any employee welfare benefit plan that provides post-employment welfare benefits in a manner that would increase the liability of the Reporting Entity or any Restricted Subsidiary
thereunder; and any such event or events described in clauses (i) through (vi) above, either individually or together with any other such event or events, would reasonably be expected to have a Material Adverse Effect (as used in this
Section 11(j), the terms “employee benefit plan” and “employee welfare benefit plan” shall have the respective meanings assigned to such terms in Section 3 of ERISA); or 

(k) for any reason whatsoever any Security Document ceases to be in full force and effect including, without limitation, a
determination by any Governmental Authority that any Security Document is invalid, void or unenforceable or the Reporting Entity or any Subsidiary which is a party to any Security Document shall contest or deny in writing the enforceability of any
of its obligations under any Security Document to which it is a party (but excluding any Security Document which ceases to be in full force and effect in accordance with and by reason of the express provisions of Section 2.2(e)). 

  
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 Notwithstanding anything in this Agreement to the contrary, for a period commencing on the
Synergy Closing Date and ending on the date falling 120 days after the Synergy Closing Date (the “Clean-up Date”), notwithstanding any other provision of this Agreement or the Affiliate Guaranty, any breach of covenant or other
default which arises with respect to Synergy Health plc and its Subsidiaries will be deemed not to be a breach of covenant or an Event of Default, as the case may be, if: 

(i) it is capable of remedy and reasonable steps are being taken to remedy it; 

(ii) the circumstances giving rise to it have not been procured or authorized by the Company knowingly in breach of this
Agreement; 
 (iii) it is not reasonably likely to have a material adverse effect on the Reporting Entity and its
Subsidiaries, on a consolidated basis; and 
 (iv) it is not a breach of Section 9.7. 

If the relevant circumstances are continuing on or after the Clean-up Date, there shall be a breach of covenant or Event of Default, as the case may be,
notwithstanding the above. 
 SECTION 12. REMEDIES ON DEFAULT, ETC. 

Section 12.1. Acceleration. (a) If an Event of Default with respect to the Reporting Entity or the Company (if the Company is
not the Reporting Entity) described in paragraph (g) or (h) of Section 11 (other than an Event of Default described in clause (i) of paragraph (g) or described in clause (vi) of paragraph (g) by virtue of
the fact that such clause encompasses clause (i) of paragraph (g)) has occurred, all the Notes then outstanding shall automatically become immediately due and payable. 

(b) If any other Event of Default has occurred and is continuing, any holder or holders of more than 51% in principal amount of a Series of
the Notes at the time outstanding may at any time at its or their option, by notice or notices to the Company, declare all of the Notes of such Series then outstanding to be immediately due and payable. 

(c) If any Event of Default described in paragraph (a) or (b) of Section 11 has occurred and is continuing, any holder
or holders of Notes at the time outstanding affected by such Event of Default may at any time, at its or their option, by notice or notices to the Company, declare all the Notes held by it or them to be immediately due and payable. 

Upon any Note becoming due and payable under this Section 12.1, whether automatically or by declaration, such Note will forthwith
mature and the entire unpaid principal amount of such Note, plus (i) all accrued and unpaid interest thereon and (ii) the Make-Whole Amount determined in respect of such principal amount (to the full
extent permitted by applicable law), shall all be 

  
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immediately due and payable, in each and every case without presentment, demand, protest or further notice, all of which are hereby waived. The Company acknowledges, and the parties hereto agree,
that each holder of a Note has the right to maintain its investment in the Notes free from repayment by the Company (except as herein specifically provided for), and that the provision for payment of a
Make-Whole Amount by the Company in the event that the Notes are prepaid or are accelerated as a result of an Event of Default, is intended to provide compensation for the deprivation of such right under such
circumstances. 
 Section 12.2. Other Remedies. If any Default or Event of Default has occurred and is continuing, and
irrespective of whether any Notes have become or have been declared immediately due and payable under Section 12.1, the holder of any Note at the time outstanding may proceed to protect and enforce the rights of such holder by an action
at law, suit in equity or other appropriate proceeding, whether for the specific performance of any agreement contained herein, in any Note or in any Security Document, or for an injunction against a violation of any of the terms hereof or thereof,
or in aid of the exercise of any power granted hereby or thereby or by law or otherwise. 
 Section 12.3. Rescission. At any
time after any Series of Notes have been declared due and payable pursuant to clause (b) or (c) of Section 12.1, the holders of not less than 51% in principal amount of each such Series of the Notes, by written notice to the
Company, may rescind and annul any such declaration and its consequences if (a) the Company has paid all overdue interest on the Notes, all principal of and Make-Whole Amount, if any, on any Notes that
are due and payable and are unpaid other than by reason of such declaration, and all interest on such overdue principal and Make-Whole Amount, if any, and (to the extent permitted by applicable law) any
overdue interest in respect of the Notes, at the Default Rate, (b) all Events of Default and Defaults, other than non-payment of amounts that have become due solely by reason of such declaration, have
been cured or have been waived pursuant to Section 17, and (c) no judgment or decree has been entered for the payment of any monies due pursuant hereto or to the Notes. No rescission and annulment under this Section 12.3
will extend to or affect any subsequent Event of Default or Default or impair any right consequent thereon. 
 Section 12.4. No
Waivers or Election of Remedies, Expenses, Etc. No course of dealing and no delay on the part of any holder of any Note in exercising any right, power or remedy shall operate as a waiver thereof or otherwise prejudice such holder’s rights,
powers or remedies. No right, power or remedy conferred by this Agreement, by any Note or by any Security Document upon any holder thereof shall be exclusive of any other right, power or remedy referred to herein or therein or now or hereafter
available at law, in equity, by statute or otherwise. Without limiting the obligations of the Company under Section 15, the Company will pay to the holder of each Note on demand such further amount as shall be sufficient to cover all
costs and expenses of such holder incurred in any enforcement or collection under this Section 12, including, without limitation, reasonable attorneys’ fees, expenses and disbursements. 

SECTION 13. REGISTRATION; EXCHANGE; SUBSTITUTION OF NOTES. 

Section 13.1. Registration of Notes. The Company shall keep at its principal executive office a register for the registration of
and registration of transfers of Notes. The name and address 

  
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of each holder of one or more Notes, each transfer thereof and the name and address of each transferee of one or more Notes shall be registered in such register. Prior to due presentment for
registration of transfer, the Person in whose name any Note shall be registered shall be deemed and treated as the owner and holder thereof for all purposes hereof, and the Company shall not be affected by any notice or knowledge to the contrary.
The Company shall give to any holder of a Note that is an Institutional Investor promptly upon request therefor, a complete and correct copy of the names and addresses of all registered holders of Notes. 

Section 13.2. Transfer and Exchange of Notes. Subject to compliance with applicable law, upon surrender of any Note at the
principal executive office of the Company for registration of transfer or exchange (and in the case of a surrender for registration of transfer, duly endorsed or accompanied by a written instrument of transfer duly executed by the registered holder
of such Note or its attorney duly authorized in writing and accompanied by the address for notices of each transferee of such Note or part thereof), the Company shall execute and deliver, at the Company’s expense (except as provided below), one
or more new Notes (as requested by the holder thereof) of the same Series (and of the same tranche if such Series has separate tranches) in exchange therefor, in an aggregate principal amount equal to the unpaid principal amount of the
surrendered Note. Each such new Note shall be payable to such Person as such holder may request and shall be substantially in the form of Exhibit 1-B,
Exhibit 1-C or Exhibit 1.5, as the case may be. Each such new Note shall be dated and bear interest from the date to which interest shall have been paid on the surrendered Note or dated
the date of the surrendered Note if no interest shall have been paid thereon. The Company may require payment of a sum sufficient to cover any stamp tax or governmental charge imposed in respect of any such transfer of Notes. Notes shall not be
transferred in denominations of less than $200,000; provided that if necessary to enable the registration of transfer by a holder of its entire holding of Notes, one Note may be in a denomination of less than $200,000. Any transferee, by its
acceptance of a Note registered in its name (or the name of its nominee), shall be deemed to have made the representations set forth in Section 6.1 and Section 6.2. 

Section 13.3. Replacement of Notes. Upon receipt by the Company of evidence reasonably satisfactory to it of the ownership of and
the loss, theft, destruction or mutilation of any Note (which evidence shall be, in the case of an Institutional Investor, notice from such Institutional Investor of such ownership and such loss, theft, destruction or mutilation), and 

(a) in the case of loss, theft or destruction, of indemnity reasonably satisfactory to it (provided that if the holder
of such Note is, or is a nominee for, a Noteholder or another holder of a Note with a minimum net worth of at least $50,000,000, such Person’s own unsecured agreement of indemnity shall be deemed to be satisfactory), or 

(b) in the case of mutilation, upon surrender and cancellation thereof, 

the Company at its own expense shall execute and deliver, in lieu thereof, a new Note of the same Series (and of the same tranche if such Series has
separate tranches), dated and bearing interest from the date to which interest shall have been paid on such lost, stolen, destroyed or mutilated Note or dated the date of such lost, stolen, destroyed or mutilated Note if no interest shall have been
paid thereon. 

  
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 SECTION 14. PAYMENTS ON NOTES. 

Section 14.1. Place of Payment. Subject to Section 14.2, payments of principal,
Make-Whole Amount, if any, and interest becoming due and payable on the Notes shall be made in New York, New York at the principal office of Bank of New York in such jurisdiction. The Company
may at any time, by notice to each holder of a Note, change the place of payment of the Notes so long as such place of payment shall be either the principal office of the Company in such jurisdiction or the principal office of a bank or trust
company in such jurisdiction. 
 Section 14.2. Home Office Payment. So long as you or your nominee shall be the holder of any
Note, and notwithstanding anything contained in Section 14.1 or in such Note to the contrary, the Company will pay all sums becoming due on such Note for principal, Make-Whole Amount, if any, and
interest by the method and at the address specified for such purpose below your name in Schedule A or in a Supplemental Note Purchase Agreement, as the case may be, or by such other method or at such other address as you shall have from
time to time specified to the Company in writing for such purpose, without the presentation or surrender of such Note or the making of any notation thereon, except that upon written request of the Company made concurrently with or reasonably
promptly after payment or prepayment in full of any Note, you shall surrender such Note for cancellation, reasonably promptly after any such request, to the Company at its principal executive office or at the place of payment most recently
designated by the Company pursuant to Section 14.1. Prior to any sale or other disposition of any Note held by you or your nominee you will, at your election, either endorse thereon the amount of principal paid thereon and the last date
to which interest has been paid thereon or surrender such Note to the Company in exchange for a new Note or Notes of the same Series and tranche pursuant to Section 13.2. The Company will afford the benefits of this
Section 14.2 to any Institutional Investor that is the direct or indirect transferee of any Note purchased by you under this Agreement and that has made the same agreement relating to such Note as you have made in this
Section 14.2. 
 SECTION 15. EXPENSES, ETC. 

Section 15.1. Transaction Expenses. (a) Whether or not the transactions contemplated hereby are consummated, the Company will
pay all costs and expenses (including reasonable attorneys’ fees of a special counsel and, if reasonably required, local or other counsel) incurred by each holder of a Note in connection with such transactions and in connection with any
amendments, waivers or consents under or in respect of this Agreement (and/or any Supplemental Note Purchase Agreement), the Notes or any Security Document (whether or not such amendment, waiver or consent becomes effective), including, without
limitation: (a) the costs and expenses incurred in enforcing or defending (or determining whether or how to enforce or defend) any rights under this Agreement (and/or any Supplemental Note Purchase Agreement), the Notes or any Security Document
or in responding to any subpoena or other legal process or informal investigative demand issued in connection with this Agreement (and/or any Supplemental Note Purchase Agreement), the Notes or any Security Document or by reason of being a holder of
any Note, and (b) the costs and expenses, including financial advisors’ fees, incurred in connection with the insolvency or bankruptcy of the Reporting Entity or any Subsidiary or in connection with any
work-out or restructuring of the transactions contemplated hereby (and/or any Supplemental Note Purchase Agreement), by the Notes or by any Security Document. Without limiting the

  
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generality of the foregoing, the Company shall pay all fees, charges and disbursement of special counsel referred to in Section 4.4(b) incurred in connection with the Closing within
ten (10) days after receipt by the Company of such special counsel’s invoice therefor. The Company will pay, and will save you and each other holder of a Note harmless from, all claims in respect of any fees, costs or expenses, if any, of
brokers and finders (other than those retained by you). 
 (b) Without limiting the foregoing, the Company agrees to pay all fees of the
Collateral Agent in connection with the preparation, execution and delivery of any Collateral Document and the transactions contemplated thereby, including but not limited to reasonable attorney’s fees; to pay to the Collateral Agent from time
to time reasonable compensation for all services rendered by it under any Collateral Document; to indemnify the Collateral Agent for, and to hold it harmless against, any loss, liability or expense incurred without gross negligence or willful
misconduct on its part, arising out of or in connection with the acceptance or administration of any Collateral Document, including, but not limited to, the costs and expenses of defending itself against any claim or liability in connection with the
exercise or performance of any of its powers or duties thereunder. 
 Section 15.2. Survival. The obligations of the Company
under this Section 15 will survive the payment or transfer of any Note, the enforcement, amendment or waiver of any provision of this Agreement (and/or any Supplemental Note Purchase Agreement), the Notes or any Security Document and the
termination of this Agreement (and/or any Supplemental Note Purchase Agreement). 
 SECTION 16. SURVIVAL
OF REPRESENTATIONS AND WARRANTIES; ENTIRE AGREEMENT. 

All representations and warranties contained herein shall survive the execution and delivery of this Agreement (including any Supplemental Note
Purchase Agreement) and the Notes, the purchase or transfer by you of any Note or portion thereof or interest therein and the payment of any Note, and may be relied upon by any subsequent holder of a Note, regardless of any investigation made at any
time by or on behalf of you or any other holder of a Note. All statements contained in any certificate or other instrument delivered by or on behalf of the Company pursuant to this Agreement shall be deemed representations and warranties of the
Company under this Agreement. Subject to the preceding sentence, this Agreement and any Supplemental Note Purchase Agreement and the Notes embody the entire agreement and understanding between you and the Company and supersede all prior agreements
and understandings relating to the subject matter hereof. 
 SECTION 17. AMENDMENT AND
WAIVER. 
 Section 17.1. Requirements. (a) This Agreement (and/or any Supplemental Note Purchase Agreement)
and the Notes may be amended, and the observance of any term hereof or of the Notes may be waived (either retroactively or prospectively), with (and only with) the written consent of the Company and the Required Holders, except that (a) no
amendment or waiver of any of the provisions of Section 1, 2.1, 2.3, 3, 4, 5 (subject to permitted amendments or supplements pursuant to Supplemental Note Purchase Agreements in respect to Notes issued
thereunder), 6 or 21 hereof, or any defined term (as it is used therein), will be effective as to you unless consented to 

  
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by you in writing, and (b) no such amendment or waiver may, without the written consent of the holder of each Note at the time outstanding affected thereby, (i) subject to the
provisions of Section 12 relating to acceleration or rescission, change the amount, time or allocation of any prepayment or payment of principal of, or reduce the rate or change the time of payment or method of computation of interest or
of the Make-Whole Amount on, the Notes, (ii) change the percentage of the principal amount of the Notes the holders of which are required to consent to any such amendment or waiver, or (iii) amend
any of Section 8, 11(a), 11(b), 12, 17 or 20. As used herein and in the Notes, the term “this Agreement” and references thereto shall mean this Agreement as it may from time to time be amended
or supplemented and, without limiting the generality of the foregoing, shall include all Supplemental Note Purchase Agreements. 
 (b) Any
Collateral Document may be amended in the manner prescribed in such document, and the Affiliate Guaranties may be amended in the manner prescribed in such documents, and all amendments to any Security Document obtained in conformity with such
requirements shall bind all holders of the Notes. 
 Section 17.2. Solicitation of Holders of Notes. 

(a) Solicitation. The Company will provide each holder of the Notes (irrespective of the amount, Series or tranche of Notes then
owned by it) with sufficient information, sufficiently far in advance of the date a decision is required, to enable such holder to make an informed and considered decision with respect to any proposed amendment, waiver or consent in respect of any
of the provisions hereof or of the Notes or of any of the Security Documents. The Company will deliver executed or true and correct copies of each amendment, waiver or consent effected pursuant to the provisions of this Section 17 or of
any of the Security Documents to each holder of outstanding Notes promptly following the date on which it is executed and delivered by, or receives the consent or approval of, the requisite holders of Notes. 

(b) Payment. Neither the Reporting Entity nor the Company will directly or indirectly pay or cause to be paid any remuneration, whether
by way of supplemental or additional interest, fee or otherwise or issue any Guaranty, or grant any security, to any holder of any Series or tranche of Notes as consideration for or as an inducement to the entering into by any holder of Notes
of any waiver or amendment of any of the terms and provisions hereof or of any Note or any Security Document unless such remuneration is concurrently paid, or Guaranty or security is concurrently granted, on the same terms, ratably to each of the
holders of each Series and tranche of the Notes then outstanding even if such holder did not consent to such waiver or amendment. 

(c) Consent in Contemplation of Transfer. Any consent made pursuant to this Section 17 by the holder of any Note that has
transferred or has agreed to transfer such Note to the Company, any Subsidiary or any Affiliate of the Company and has provided or has agreed to provide such written consent as a condition to such transfer shall be void and of no force or effect
except solely as to such holder, and any amendments effected or waivers granted or to be effected or granted that would not have been or would not be so effected or granted but for such consent (and the consents of all other holders of Notes that
were acquired under the same or similar conditions) shall be void and of no force or effect except solely as to such transferring holder. 

  
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 Section 17.3. Binding Effect, Etc. Any amendment or waiver consented to as provided
in this Section 17 applies equally to all holders of each Series and tranche of Notes and is binding upon them and upon each future holder of any Note of any Series and tranche and upon the Company without regard to whether
such Note has been marked to indicate such amendment or waiver. No such amendment or waiver will extend to or affect any obligation, covenant, agreement, Default or Event of Default not expressly amended or waived or impair any right consequent
thereon. No course of dealing between the Company and the holder of any Note of any Series or tranche of Notes nor any delay in exercising any rights hereunder or under any Note shall operate as a waiver of any rights of any holder of each
Series and tranche of such Note. 
 Section 17.4. Notes Held by Company, Etc. Solely for the purpose of determining whether
the holders of the requisite percentage of the aggregate principal amount of Notes then outstanding approved or consented to any amendment, waiver or consent to be given under this Agreement, the Notes or any Security Document, or have directed the
taking of any action provided herein or in the Notes or any Security Document to be taken upon the direction of the holders of a specified percentage of the aggregate principal amount of Notes then outstanding, Notes directly or indirectly owned by
the Company or any of its Affiliates shall be deemed not to be outstanding. 
 SECTION 18. NOTICES. 

All notices and communications provided for hereunder shall be in writing and sent (a) electronically (including by telefacsimile if the
sender on the same day sends a confirming copy of such notice by a recognized overnight delivery service (charges prepaid) or by e-mail), or (b) by registered or certified mail with return receipt requested (postage prepaid), or (c) by a
recognized overnight delivery service (with charges prepaid). Any such notice must be sent: 
 (i) if to you or your nominee,
to you or it at the address specified for such communications in Schedule A or in a Supplemental Note Purchase Agreement, or at such other address as you or it shall have specified to the Company in writing, 

(ii) if to any other holder of any Note, to such holder at such address as such other holder shall have specified to the
Company in writing, or 
 (iii) if to the Company or the Reporting Entity, to the Company at its address set forth at the
beginning hereof to the attention of Corporate Treasurer, or at such other address as the Company shall have specified to the holder of each Note in writing. 

Notices under this Section 18 will be deemed given only when actually received. Notices and other communications sent electronically shall be
deemed received on the day such notices or other communications are sent unless such notice or other communication is not sent during the normal business hours of the recipient, in which case such notice or communication shall be deemed to have been
sent at the opening of business on the next business day. 

  
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 SECTION 19. REPRODUCTION OF DOCUMENTS. 

This Agreement (including any Supplemental Note Purchase Agreement and any Security Document) and all documents relating thereto, including,
without limitation, (a) consents, waivers and modifications that may hereafter be executed, (b) documents received by you at the Closing (except the Notes themselves), and (c) financial statements, certificates and other information
previously or hereafter furnished to you, may be reproduced by you by any photographic, photostatic, microfilm, microcard, miniature photographic or other similar process and you may destroy any original document so reproduced. The Company agrees
and stipulates for itself and on behalf of the Reporting Entity that, to the extent permitted by applicable law, any such reproduction shall be admissible in evidence as the original itself in any judicial or administrative proceeding (whether or
not the original is in existence and whether or not such reproduction was made by you in the regular course of business) and any enlargement, facsimile or further reproduction of such reproduction shall likewise be admissible in evidence. This
Section 19 shall not prohibit the Company or any other holder of Notes from contesting any such reproduction to the same extent that it could contest the original, or from introducing evidence to demonstrate the inaccuracy of any such
reproduction. 
 SECTION 20. CONFIDENTIAL INFORMATION. 

For the purposes of this Section 20, “Confidential Information” means information delivered to you by or on behalf
of the Reporting Entity or any Subsidiary in connection with the transactions contemplated by or otherwise pursuant to this Agreement that is confidential and/or proprietary in nature and that was clearly marked or labeled or otherwise adequately
identified in writing (or verbally in the case of oral communication) when received by you as being confidential information of the Reporting Entity or such Subsidiary; provided that such term does not include information that (a) was
publicly known or otherwise known to you prior to the time of such disclosure, (b) subsequently becomes publicly known through no act or omission by you or any Person acting on your behalf, (c) otherwise becomes known to you other than
through disclosure by the Reporting Entity or any Subsidiary or any other holder of any Note, (d) constitutes financial statements delivered to you under Section 7.1 that are otherwise publicly available or (e) relates to the
“tax treatment” or “tax structure” of the transactions contemplated by this Agreement, as such terms are defined in Section 1.6011-4 of the Treasury Department regulations issued under
the Code, and all materials of any kind that are provided to you relating to such tax treatment or tax structure, except to the extent that disclosure of such information is not permitted under any applicable securities laws, and except with respect
to any item that contains information concerning the tax treatment or tax structure of a transaction as well as Confidential Information, this clause (e) shall only apply to that portion of the item relating to tax treatment or tax structure.
You will maintain the confidentiality of such Confidential Information in accordance with reasonable procedures adopted by you in good faith to protect confidential information of third parties delivered to you; provided that you may deliver
or disclose Confidential Information to (i) your directors, trustees, officers, employees, agents, attorneys and Affiliates (which Affiliates have agreed to hold confidential the confidential information) (to the extent such disclosure
reasonably relates to the administration of the investment represented by your Notes), (ii) your financial advisors and other professional advisors who agree to hold confidential the Confidential Information substantially in accordance with the
terms of this Section 20, (iii) any other holder of 

  
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any Note, (iv) any Institutional Investor to which you sell or offer to sell such Note or any part thereof or any participation therein (if such Person has agreed in writing prior to its
receipt of such Confidential Information to be bound by the provisions of this Section 20, and such written agreement shall name the Company as a third party beneficiary thereof), (v) any Person from which you offer to purchase any
security of the Reporting Entity (if such Person has agreed in writing prior to its receipt of such Confidential Information to be bound by the provisions of this Section 20), (vi) any federal or state regulatory authority having
jurisdiction over you to the extent required or requested, (vii) the National Association of Insurance Commissioners or any similar organization, or any nationally recognized rating agency that requires access to information about your
investment portfolio to the extent required or requested, or (viii) any other Person to which such delivery or disclosure may be required (w) to effect compliance with any law, rule, regulation or order applicable to you, (x) in
response to any subpoena or other legal process, (y) in connection with any litigation to which you are a party or (z) if an Event of Default has occurred and is continuing, to the extent you may reasonably determine such delivery and
disclosure to be necessary or appropriate in the enforcement or for the protection of the rights and remedies under your Notes and this Agreement. Each holder of a Note, by its acceptance of a Note, will be deemed to have agreed to be bound by and
to be entitled to the benefits of this Section 20 as though it were a party to this Agreement. On reasonable request by the Company in connection with the delivery to any holder of a Note of information required to be delivered to such
holder under this Agreement or requested by such holder (other than a holder that is a party to this Agreement or its nominee or any other holder that has previously delivered such confirmation), such holder will enter into an agreement with the
Company confirming in writing that it is bound by the provisions of this Section 20. 
 SECTION 21.
SUBSTITUTION OF PURCHASER. 
 You shall have the right to substitute any one of your Affiliates
as the purchaser of the Notes that you have agreed to purchase hereunder, by written notice to the Company, which notice shall be signed by both you and such Affiliate, shall contain such Affiliate’s agreement to be bound by this Agreement and
shall contain a confirmation by such Affiliate of the accuracy with respect to it of the representations set forth in Section 6. Upon receipt of such notice, wherever the word “you” is used in this Agreement (other than in this
Section 21), such word shall be deemed to refer to such Affiliate in lieu of you. In the event that such Affiliate is so substituted as a purchaser hereunder and such Affiliate thereafter transfers to you all of the Notes then held by
such Affiliate, upon receipt by the Company of notice of such transfer, wherever the word “you” is used in this Agreement (other than in this Section 21), such word shall no longer be deemed to refer to such Affiliate, but
shall refer to you, and you shall have all the rights of an original holder of the Notes under this Agreement. 
 SECTION 22.
MISCELLANEOUS. 
 Section 22.1. Successors and Assigns. All covenants and other agreements contained in this
Agreement (including any Supplemental Note Purchase Agreement) by or on behalf of any of the parties hereto bind and inure to the benefit of their respective successors and assigns (including, without limitation, any subsequent holder of a Note)
whether so expressed or not. 

  
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 Section 22.2. Payments Due on Non-Business
Days. Anything in this Agreement or the Notes to the contrary notwithstanding, any payment of principal of or Make-Whole Amount or interest on any Note that is due on a date other than a Business Day shall
be made on the next succeeding Business Day without including the additional days elapsed in the computation of the interest payable on such next succeeding Business Day. 

Section 22.3. Severability. Any provision of this Agreement that is prohibited or unenforceable in any jurisdiction shall, as to
such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or unenforceability in any jurisdiction shall (to the full extent permitted by
law) not invalidate or render unenforceable such provision in any other jurisdiction. 
 Section 22.4. Construction. Each
covenant contained herein shall be construed (absent express provision to the contrary) as being independent of each other covenant contained herein, so that compliance with any one covenant shall not (absent such an express contrary provision) be
deemed to excuse compliance with any other covenant. Where any provision herein refers to action to be taken by any Person, or which such Person is prohibited from taking, such provision shall be applicable whether such action is taken directly or
indirectly by such Person. 
 Where the character or amount of any asset or liability or item of income or expense is required to be
determined or any consolidation or other accounting computation is required to be made by the Reporting Entity for the purposes of this Agreement, the same shall be done by the Reporting Entity in accordance with GAAP, to the extent applicable,
except where such principles are inconsistent with the requirements of this Agreement. 
 For purposes of determining compliance with this
Agreement (including, without limitation, Section 9, Section 10 and the definition of “Debt”), any election by the Reporting Entity or any Restricted Subsidiary to measure any financial liability using fair value (as
permitted by Financial Accounting Standards Board Accounting Standards Codification Topic No. 825-10-25 – Fair Value Option, International Accounting
Standard 39 – Financial Instruments: Recognition and Measurement or any similar accounting standard) shall be disregarded and such determination shall be made as if such election had not been made. 

Notwithstanding the foregoing, if there is a change in GAAP after the date of this Agreement, the result of which is to cause the Reporting
Entity to be in default in respect of any covenant contained in Section 10, then such default shall be stayed and no Default or Event of Default shall occur hereunder. The Reporting Entity shall then, in consultation with its independent
accountants, negotiate in good faith with the holders of Notes for a period of 60 days to make any necessary adjustments to such covenant or any component of financial computations used to calculate such covenant to provide the holders of the
Notes with substantially the same protection as such covenant provided prior to the relevant change in GAAP. In the event that no agreement is reached by the end of such 60-day negotiation period, then, at the
Reporting Entity’s election, the Reporting Entity’s compliance with such covenant shall be determined on the basis of GAAP in effect immediately prior to such change and each subsequent set of financial statements delivered to holders of
Notes pursuant to Section 7.1(a) or (b) shall include detailed reconciliations reasonably satisfactory to the Required Holders as to the effect of such change in GAAP. 

  
 -50- 

 Section 22.5. Counterparts. This Agreement may be executed in any number of
counterparts, each of which shall be an original but all of which together shall constitute one instrument. Each counterpart may consist of a number of copies hereof, each signed by less than all, but together signed by all, of the parties hereto.

 Section 22.6. Governing Law. This Agreement shall be construed and enforced in accordance with, and the rights of the parties
shall be governed by, the law of the State of New York, excluding choice-of-law principles of the law of such State that would require the application of the laws
of a jurisdiction other than such State. 
 Section 22.7. Submission to Jurisdiction; Waiver of Jury Trial. (a) The
Reporting Entity and the Company hereby irrevocably submits and consents to the jurisdiction of the federal court located within the County of New York, State of New York (or if such court lacks jurisdiction, the State courts located
therein), and irrevocably agrees that all actions or proceedings relating to this Agreement and the Notes may be litigated in such courts, and each of the Reporting Entity and the Company waives any objection which it may have based on improper
venue or forum non conveniens to the conduct of any proceeding in any such court and waives personal service of any and all process upon it, and consents that all such service of process be made by delivery to it at the address of such Person set
forth in Section 18 above or to its agent referred to below at such agent’s address set forth below (with a courtesy copy to the Reporting Entity and the Company at the address set forth in Section 18) and that service
so made shall be deemed to be completed upon actual receipt. Nothing contained in this section shall affect the right of any holder of Notes to serve legal process in any other manner permitted by law or to bring any action or proceeding in the
courts of any jurisdiction against the Company or the Reporting Entity or to enforce a judgment obtained in the courts of any other jurisdiction. 

(b) The parties hereto waive any right to have a jury participate in resolving any dispute, whether sounding in contract, tort, or otherwise,
between them arising out of, connected with, related to or incidental to the relationship established between them in connection with this Agreement and the Notes, any financing agreement, any loan party document or any other instrument, document or
agreement executed or delivered in connection herewith or the transactions related hereto. The parties hereto hereby agree and consent that any such claim, demand, action or cause of action shall be decided by court trial without a jury and that any
of them may file an original counterpart or a copy of this Agreement with any court as written evidence of the consent of the parties hereto to the waiver of their right to trial by jury. 

SECTION 23. TAX INDEMNIFICATION; PAYMENT IN U.S. DOLLARS.

 In the event, in accordance with Section 10.4, the entity which results from the consolidation or merger described therein or
the Person to whom the Company has sold or otherwise disposed of all or substantially all of its assets is organized under the laws of any 

  
 -51- 

 
jurisdiction other than any state of the United States or the District of Columbia the following shall apply: 

(a) Each payment by the Company (or applicable successor in accordance with Section 10.4) shall be made, under all
circumstances, without setoff, counterclaim or reduction for, and free from and clear of, and without deduction for or because of, any and all present or future taxes, levies, imposts, duties, fees, charges, deductions, withholding, restrictions or
conditions of any nature whatsoever (hereinafter called “Relevant Taxes”) imposed, levied, collected, assessed, deducted or withheld by the government of any country or jurisdiction (or any authority therein or thereof), other than
the United States of America or any political subdivision or authority therein or thereof, from or through which payments hereunder or on or in respect of the Notes are actually made (each a “Taxing Jurisdiction”), unless such
imposition, levy, collection, assessment, deduction, withholding or other restriction or condition is required by law. If the Company is required by law to make any payment under this Agreement or the Notes subject to such deduction, withholding or
other restriction or condition, then the Company shall forthwith (i) pay over to the government or taxing authority imposing such tax the full amount required to be deducted, withheld from or otherwise paid by the Company (including the full
amount required to be deducted or withheld from or otherwise paid by the Company in respect of the Tax Indemnity Amounts (as defined below)); (ii) pay each Holder such additional amounts (“Tax Indemnity Amounts”) as may be
necessary in order that the net amount of every payment made to each Holder, after provision for payment of such Relevant Taxes (including any required deduction, withholding or other payment of tax on or with respect to such Tax Indemnity Amounts),
shall be equal to the amount which such holder would have received had there been no imposition, levy, collection, assessment, deduction, withholding or other restriction or condition. Notwithstanding the foregoing provisions of this
Section 23(a), no such Tax Indemnity Amounts shall be payable for or on account of any tax, assessment or other governmental charge that is imposed or withheld by reason of the failure of the holder of a Note to complete, execute, update
and deliver to the Company any form or document to the extent applicable to such holder that may be required by law or by reason of administration of such law and which is reasonably requested in writing to be delivered by the Company in order to
enable the Company to make payments pursuant to this Section 23(a) without deduction or withholding for taxes, assessments or governmental charges, or with deduction or withholding of such lesser amount, which form or document shall be
delivered within one hundred twenty days of a written request therefor by the Company. If in connection with the payment of any such Tax Indemnity Amounts, any holder of a Note that is a United States person within the meaning of the Code or a
foreign person engaged in a trade or business within the United States of America, incurs taxes imposed by the United States of America or any political subdivision or taxing authority therein (“United States Taxes”) on such Tax
Indemnity Amounts, the Company shall pay to such holder such further amount as will insure that the net expenditure of the holder for United States Taxes due to receipt of such Tax Indemnity Amounts (after taking into account any withholding,
deduction, tax credit or tax benefit in respect of such further amount or any Tax Indemnity Amount) is no greater than it would have been had no Tax Indemnity Amounts been paid to the holder. 

(b) Any payment made by the Company to any holder of a Note for the account of any such holder in respect of any amount payable
by the Company shall be made in the lawful currency of the United States of America (“U.S. Dollars”). Any amount received 

  
 -52- 

 
or recovered by such holder other than in U.S. Dollars (whether as a result of, or of the enforcement of, a judgment or order of any court, or in the liquidation or dissolution of the
Company or otherwise) in respect of any such sum expressed to be due hereunder or under the Notes shall constitute a discharge of the Company only to the extent of the amount of U.S. Dollars which such holder is able, in accordance with normal
banking procedures, to purchase with the amount so received or recovered in that other currency on the date of the receipt or recovery (or, if it is not practicable to make that purchase on such date, on the first date on which it is practicable to
do so). If the amount of U.S. Dollars so purchased is less than the amount of U.S. Dollars expressed to be due hereunder or under the Notes, the Company agrees as a separate and independent obligation from the other obligations herein,
notwithstanding any such judgment, to indemnify the holder against the loss. If the amount of U.S. Dollars so purchased exceeds the amount of U.S. Dollars expressed to be due hereunder or under the Notes, then such holder agrees to remit
such excess to the Company. 

*        *        *       
 *        *        * 

  
 -53- 

 INFORMATION RELATING TO NOTEHOLDERS

  

							
			
	NAME AND ADDRESS OF PURCHASER	  	SERIES AND TRANCHE
OF NOTE(S)	  	PRINCIPAL AMOUNT OF
NOTES TO BE
EXCHANGED	 
	 [NAME OF INITIAL PURCHASER]
	  		  	$	            	  
			
	 (1)    All payments by wire transfer of immediately available funds to:
	  		  			
			
	 with sufficient information to identify the source and application of such funds.
	  		  			
			
	 (2)    All notices of payments and written confirmations of such wire transfers:
	  		  			
			
	 (3)    All other communications:
	  		  			

  
 SCHEDULE A

 (to Note Purchase Agreement) 

 DEFINED TERMS 

As used herein, the following terms have the respective meanings set forth below or set forth in the Section hereof following such term:

 “Affiliate” means, at any time, and with respect to any Person, any other Person that at such time directly or
indirectly through one or more intermediaries Controls, or is Controlled by, or is under common Control with, such first Person. As used in this definition, “Control” means the possession, directly or indirectly, of the power to
direct or cause the direction of the management and policies of a Person, whether through the ownership of voting securities, by contract or otherwise. Unless the context otherwise clearly requires, any reference to an “Affiliate”
is a reference to an Affiliate of the Reporting Entity. 
 “Affiliate Guaranty” is defined in Section 2.2(a)
and shall include any Guaranty delivered pursuant to Section 9.7. 
 “Agent” means JPMorgan Chase Bank, N.A.,
as Agent under the Bank Credit Agreement and any successor or other agent serving in a similar capacity. 
 “Agreement” is
defined in Section 1.2. 
 “Amended Notes” is defined in Section 1.2. 

“Anti-Corruption Laws” is defined in Section 5.16(d)(1). 

“Anti-Money Laundering Laws” is defined in Section 5.16(c). 

“Bank Credit Agreement” means that certain Credit Agreement effective as of March 31, 2015 among the Company, the Agent
and the other parties thereto, as from time to time supplemented, amended, modified, extended, renewed, refinanced or replaced. 

“Banks” means the lending institutions party to the Bank Credit Agreement. 

“Blocked Person” is defined in Section 5.16(a). 

“Borrowed Debt” means any Debt for borrowed money, including loans, hybrid securities, debt convertible into Equity Interests
and any Debt represented by notes, bonds, debentures or other similar evidences of Debt for borrowed money. 
 “Bridge
Facility” means that certain 364-Day Bridge Credit Agreement, dated as of October 13, 2014, among Solar US Parent Co., as Borrower, STERIS Corporation, as a Guarantor, various financial institutions as Lenders, and Bank of America,
N.A., as Administrative Agent, as from time to time supplemented, amended, modified or extended. 

  
 SCHEDULE B

 (to Note Purchase Agreement) 

 “Business Day” means (a) for the purposes of Section 8.6 only,
any day other than a Saturday, a Sunday or a day on which commercial banks in New York City are required or authorized to be closed, and (b) for the purposes of any other provision of this Agreement, any day other than a Saturday, a Sunday
or a day on which commercial banks in New York, New York or Cleveland, Ohio are required or authorized to be closed. 

“Capital Lease” means, at any time, a lease with respect to which the Lessee is required concurrently to recognize the
acquisition of an asset and the incurrence of a liability in accordance with GAAP. 
 “Cash Equivalents” means
(a) marketable direct obligations with maturities of one year or less from the date of acquisition, issued by or fully guaranteed or insured by (i) the United States Government or any agency or instrumentality thereof or (ii) any
member state of the European Union; (b) marketable general obligations issued or fully guaranteed by any state, commonwealth or territory of the United States of America or any political subdivision, agency or taxing authority of any such
state, commonwealth or territory or any public instrumentality thereof or any other foreign government or any agency or instrumentality thereof maturing within one year from the date of acquisition thereof and, at the time of acquisition, which are
rated at least A- by S&P or A-1 by Moody’s; (c) marketable direct obligations with maturities of one year or less from the date of acquisition, issued by
an issuer rated at least A-/A-1 by S&P or A3/P-1 by Moody’s; or carrying an equivalent rating by a nationally recognized
rating agency, if both of the two named rating agencies cease publishing ratings of investments, and, in either case, maturing within one year from the date of acquisition; (d) certificates of deposit, time deposits, eurodollar time deposits,
overnight bank deposits, notes, debt securities, bankers’ acceptances and repurchase agreements, in each case having maturities of one year or less from the date of acquisition, issued, and money market deposit accounts issued or offered, by
any Lender or by any commercial bank organized under the laws of the United States of America or any state thereof or foreign commercial bank of recognized standing having combined capital and surplus of not less than $100,000,000 or any bank (or
the parent company of any such bank) whose short-term commercial paper rating from S&P is at least A-1 or from Moody’s is at least P-2 or an equivalent rating from another rating agency; (e) commercial paper of an issuer rated at least A-1 by S&P or P-1 by
Moody’s, or carrying an equivalent rating by a nationally recognized rating agency, if both of the two named rating agencies cease publishing ratings of investments, and, in either case, maturing within one year from the date of acquisition;
(f) repurchase obligations of any Lender or of any commercial bank satisfying the requirements of clause (d) of this definition, having a term of not more than 30 days, with respect to notes or other securities described in clause
(a) of this definition; (g) any notes or other debt securities or instruments issued by any Person, (i) the payment and performance of which is premised upon (A) securities issued by any state, commonwealth or territory of the
United States of America or any political subdivision or taxing authority of such state, commonwealth or territory or any public instrumentality or agency thereof or any foreign government or (B) loans originated or acquired by any other Person
pursuant to a plan or program established by any Governmental Authority that requires the payment of not less than 95% of the outstanding principal amount of such loans to be guaranteed by (1) a specified Governmental Authority or (2) any
other Person (provided that all or substantially all of such guarantee payments made by such Person are contractually required to be reimbursed by any other Governmental Authority), (ii) that are rated at least AAA by S&P and Aaa by
Moody’s and (iii) which are 

  
 B-2 

 
disposed of by the Reporting Entity or any member of the Consolidated Group within one year after the date of acquisition thereof; (h) shares of money market, mutual or similar funds that
(i) invest in assets satisfying the requirements of clauses (a) through (g) (or any of such clauses) of this definition, and (ii) have portfolio assets of at least $1,000,000,000; and (i) any other investment which
constitutes a “cash equivalent” under GAAP as in effect from time to time. 
 “Change in Control” means
(i) an event or series of events by which any person or “group” (within the meaning of Sections 13(d) and 14(d)(2) of the Exchange Act) (such person or persons hereinafter referred to as an “Acquiring Person”)
becomes the “beneficial owner” (as defined in Rule 13d-3 under the Exchange Act), directly or indirectly, of more than 50% of the voting power of the then outstanding Voting Stock of the Reporting
Entity or (ii) during any period of up to 24 consecutive months, commencing after the date of this Agreement, a majority of the members of the board of directors of the Reporting Entity shall not be Continuing Directors; provided that,
notwithstanding the foregoing, a “Change in Control” shall not be deemed to have occurred if the Reporting Entity (or the Acquiring Person if either (x) the Reporting Entity is no longer in existence or (y) the Acquiring Person
has acquired all or substantially all of the assets or stock thereof, and, in either case, such Acquiring Person has assumed the obligations of the Reporting Entity under the Notes) shall have an Investment Grade Rating immediately following such
Acquiring Person becoming the “beneficial owner” or consummating such acquisition. 
 “CISADA” is defined in
Section 5.16. 
 “Clean-Up Date” is defined in Section 11. 

“Closing Date” is defined in Section 4. 

“Code” means the Internal Revenue Code of 1986, as amended from time to time, and the rules and regulations promulgated
thereunder from time to time. 
 “Collateral Agent” is defined in Section 2.2(b). 

“Collateral Documents” is defined in Section 2.2(b). 

“Company” is defined in the introductory paragraph to this Agreement and shall include any permitted successor thereto. 

“Company Merger” means the indirect or direct acquisition of all of the outstanding capital stock of the Company by New
STERIS Limited pursuant to that certain Agreement and Plan of Merger, dated as of October 13, 2014, by and among the Company and other parties thereto, as amended, amended and restated or replaced. 

“Confidential Information” is defined in Section 20. 

“Consolidated” means the resultant consolidation of the financial statements of the Company and its Restricted Subsidiaries
in accordance with GAAP, including principles of consolidation consistent with those applied in preparation of the consolidated financial statements referred to in Schedule 5.5 hereof. 

  
 B-3 

 “Consolidated EBITDA” means, for any fiscal period, the Consolidated net income
of the Consolidated Group for such period determined in accordance with GAAP plus the following, to the extent deducted in calculating such Consolidated net income: (a) Consolidated Interest Expense, (b) the provision for Federal,
state, local and foreign taxes based on income, profits, revenue, business activities, capital or similar measures payable by the Reporting Entity and its Subsidiaries in each case, as set forth on the financial statements of the Consolidated Group,
(c) depreciation (including depletion) and amortization expense, (d) any extraordinary or unusual charges, expenses or losses, (e) net after-tax losses (including all fees and expenses or
charges relating thereto) on sales of assets outside of the ordinary course of business and net after-tax losses from discontinued operations, (f) any net after-tax
losses (including all fees and expenses or charges relating thereto) on the retirement of debt, (g) any other non-recurring or non-cash charges, expenses or losses (including charges, fees and expenses
incurred in connection with the Transactions); provided that for any period of four consecutive fiscal quarters non-recurring cash expenses added back pursuant to this clause (g) (other than those
in connection with the Transactions or any acquisition) shall not exceed the greater of (x) $50,000,000 and (y) 10% of Consolidated EBITDA (before giving effect to such non-recurring cash add back) for the applicable four quarter period,
(h) minority interest expense, and (i) non-cash stock option expenses, non-cash equity-based compensation and/or non-cash expenses related to stock-based compensation, and minus, to the extent included in calculating such Consolidated net income for such period, the sum of
(i) any extraordinary or unusual income or gains, (ii) net after-tax gains (less all fees and expenses or charges relating thereto) on the sales of assets outside of the ordinary course of business
and net after-tax gains from discontinued operations (without duplication of any amounts added back in clause (b) of this definition), (iii) any net after-tax
gains (less all fees and expenses or charges relating thereto) on the retirement of debt, (iv) any other nonrecurring or non-cash income and (v) minority interest income, all as determined on a
Consolidated basis. Consolidated EBITDA will be calculated on a pro forma basis as if the Transactions and any related incurrence or repayment of Debt by the Reporting Entity or any of its Subsidiaries had occurred on the first day of the relevant
period, but shall not take into account any cost savings projected to be realized as a result of such acquisition or disposition other than cost savings permitted to be included under Regulation S-X of the
Securities and Exchange Commission. In addition, in the event that the Reporting Entity or any of its Subsidiaries acquired or disposed of any Person, business unit or line of business or made any investment during the relevant period, Consolidated
EBITDA will be determined giving pro forma effect to such acquisition, disposition or investment as if such acquisition, disposition or investment and any related incurrence or repayment of Debt had occurred on the first day of the relevant period,
but shall not take into account any cost savings projected to be realized as a result of such acquisition or disposition other than cost savings permitted to be included under Regulation S-X of the Securities
and Exchange Commission; provided that if appropriate financial items to calculate Consolidated EBITDA on a pro forma basis for an acquisition or investment are unavailable or were not prepared in accordance with GAAP, then the Reporting
Entity may elect not to include such financial items relating to such acquisition or investment if the amount of Consolidated EBITDA attributable to such acquisition or investment as reasonably determined in good faith by the Reporting Entity is
greater than or equal to $0 or is less negative than negative $25,000,000. 

  
 B-4 

 “Consolidated Group” means the Reporting Entity and its Restricted Subsidiaries.

 “Consolidated Interest Expense” means, for any fiscal period, the total interest expense of the Consolidated Group on a
Consolidated basis determined in accordance with GAAP, including the imputed interest component of capitalized lease obligations during such period, and all commissions, discounts and other fees and charges owed with respect to letters of credit, if
any, and net costs under Hedge Agreements relating to interest rates; provided that if the Reporting Entity or any of its Subsidiaries acquired or disposed of any Person or line of business during the relevant period (including for the
avoidance of doubt the Transactions and the Synergy Acquisition), Consolidated Interest Expense will be determined giving pro forma effect to any incurrence or repayment of Debt related to such acquisition or disposition as if such incurrence or
repayment of Debt had occurred on the first day of the relevant period. 
 “Consolidated Total Assets” means, as of any
date of determination, the net book value of all assets at such date as reflected on the Consolidated balance sheet of the Reporting Entity most recently delivered pursuant to Section 7.1(a) or Section 7.1(b). 

“Consolidated Total Debt” means, as of any date of determination, the aggregate amount of Borrowed Debt of the Consolidated
Group determined on a Consolidated basis as of such date. 
 “Continuing Director” means, for any period, an individual who
is a member of the board of directors of the Reporting Entity on the first day of such period or whose election to the board of directors of the Reporting Entity is approved by a majority of the other Continuing Directors. 

“Control Event” means the execution by the Company of a definitive written agreement which, when fully performed by the
parties thereto, would result in a Change in Control. 
 “Controlled Entity” means (i) any of the Subsidiaries of the
Reporting Entity and any of their or the Reporting Entity’s respective Controlled Affiliates and (ii) if the Reporting Entity has a parent company, such parent company and its Controlled Affiliates. As used in this definition,
“Control” means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of a Person, whether through the ownership of voting securities, by contract or otherwise. 

“Covenant Material Adverse Effect” means a material adverse effect on (a) the financial condition or results of
operations of the Reporting Entity and its Subsidiaries, taken as a whole, (b) the rights and remedies of any Noteholder under this Agreement, taken as a whole, or (c) the ability of the Company and the Guarantors, taken as a whole, to
perform their payment obligations under this Agreement. 
 “Creditors” means the Agent, the Banks, the holders of the Notes
and any other Persons who are lenders under a Material Credit Facility. 
 “Debt” of any Person means, without duplication,
(a) all indebtedness of such Person for borrowed money, (b) all obligations of such Person for the deferred purchase price of property or services (other than trade payables incurred in the ordinary course of such Person’s business),

  
 B-5 

 
(c) all obligations of such Person evidenced by notes, bonds, debentures or other similar instruments, (d) all obligations of such Person created or arising under any conditional sale
or other title retention agreement with respect to property acquired by such Person (even though the rights and remedies of the seller or lender under such agreement in the event of default are limited to repossession or sale of such property),
(e) all obligations of such Person as lessee under leases that have been or should be, in accordance with GAAP, recorded as Capital Leases, (f) all obligations, contingent or otherwise, of such Person in respect of acceptances, letters of
credit or similar extensions of credit, (g) all obligations of such Person in respect of Hedge Agreements, (h) all Debt of others referred to in clauses (a) through (g) above or clause (i) below directly guaranteed in any
manner by such Person, or the payment of which is otherwise provided for by such Person, and (i) all Debt referred to in clauses (a) through (h) above secured by (or for which the holder of such Debt has an existing right, contingent
or otherwise, to be secured by) any Lien on property (including, without limitation, accounts and contract rights) owned by such Person, even though such Person has not assumed or become liable for the payment of such Debt. 

“Default” means an event or condition the occurrence or existence of which would, with the lapse of time or the giving of
notice or both, become an Event of Default that has not been waived by the Required Holders. 
 “Default Rate” means that
rate of interest that is 2% per annum above the rate of interest stated in clause (a) of the first paragraph of the Notes as such rate of interest may be modified in accordance with the second paragraph of the Notes. 

“Disinterested Director” means, with respect to any Person and transaction, a member of the board of directors of such Person
who does not have any material direct or indirect financial interest in or with respect to such transaction. 

“Dispositions” is defined in Section 10.5. 

“Eligible Purchasers” means any Noteholder and additional Institutional Investors; provided that the aggregate number
of Eligible Purchasers shall not at any time exceed a number which, if exceeded, would result in the loss of the exemption in respect of any Series of Notes from the registration requirements of the Securities Act. 

“English GAAP” means generally accepted accounting principles (including International Financial Reporting Standards, as
applicable) as in effect from time to time in England and Wales. 
 “Environmental Laws” means any and all federal, state,
local, and foreign statutes, laws, regulations, ordinances, rules, judgments, orders, decrees, permits, concessions, grants, franchises, licenses, agreements or governmental restrictions relating to pollution and the protection of the environment or
the release of any materials into the environment, including but not limited to those related to hazardous substances or wastes, air emissions and discharges to waste or public systems. 

“Equity Interests” means shares of capital stock, partnership interests, membership interests in a limited liability company,
beneficial interests in a trust or other equity ownership interests in a Person, and any warrants, options or other rights entitling the holder thereof to purchase or acquire any such equity interest. 

  
 B-6 

 “ERISA” means the Employee Retirement Income Security Act of 1974, as amended
from time to time, and the rules and regulations promulgated thereunder from time to time in effect. 
 “ERISA Affiliate”
means any trade or business (whether or not incorporated) that is treated as a single employer together with the Reporting Entity under Section 414 of the Code. 

“Event of Default” is defined in Section 11. 

“Exchange Act” means the Securities Exchange Act of 1934, as amended. 

“Existing Note Purchase Agreement” is defined in Section 1.1. 

“Existing STERIS Credit Agreement” is defined in Section 5.15. 

“Existing Synergy Credit Agreement” means the Multicurrency Revolving Credit Agreement, dated as of July 26, 2011, among
Synergy Health plc, the other borrowers party thereto, the other guarantors party thereto, the lenders from time to time party thereto, and Barclays Bank Plc, as administrative agent. 

“Existing Synergy Notes” means notes issued by Synergy Health plc pursuant to that certain Note Purchase Agreement and
Private Shelf Facility, dated as of September 13, 2012, by and among Synergy Health plc and the purchasers named therein. 

“First Amendment” is defined in Section 1.1. 

“Foreign Guarantor” means any Guarantor that is not organized under the laws of the United States or any jurisdiction within
the United States. 
 “GAAP” means generally accepted accounting principles as in effect from time to time in the United
States of America, which shall include the official interpretations thereof by the Financial Accounting Standards Board applied on a consistent basis with past accounting practices and procedures of the Company. 

“Governmental Authority” means: 

(a) the government of 

(i) the United States of America or any State or other political subdivision thereof, or 

(ii) any jurisdiction in which the Company or any Subsidiary conducts all or any part of its business, or which asserts
jurisdiction over any properties of the Company or any Subsidiary, or 

  
 B-7 

 (b) any entity exercising executive, legislative, judicial, regulatory or
administrative functions of, or pertaining to, any such government. 
 “Governmental Obligations” means securities that are
(i) direct obligations of the United States for the payment of which its full faith and credit is pledged or (ii) obligations of a Person controlled or supervised by and acting as an agency or instrumentality of the United States, the
payment of which is unconditionally guaranteed as a full faith and credit obligation by the United States that, in either case, are not callable or redeemable at the option of the issuer thereof, and shall also include a depositary receipt issued by
a bank (as defined in Section 3(a)(2) of the Securities Act of 1933, as amended) as custodian with respect to any such Governmental Obligation or a specific payment of principal of or interest on any such Governmental Obligation held by such
custodian for the account of the holder of such depositary receipt; provided, however, that (except as required by law) such custodian is not authorized to make any deduction from the amount payable to the holder of such depositary
receipt from any amount received by the custodian in respect of the Governmental Obligation or the specific payment of principal of or interest on the Governmental Obligation evidenced by such depositary receipt. 

“Governmental Official” means any governmental official or employee, employee of any
government-owned or government-controlled entity, political party, any official of a political party, candidate for political office, official of any public
international organization. 
 “Guaranty” means, with respect to any Person, any obligation (except the endorsement in the
ordinary course of business of negotiable instruments for deposit or collection) of such Person guaranteeing or in effect guaranteeing any indebtedness, dividend or other obligation of any other Person in any manner, whether directly or indirectly,
including (without limitation) obligations incurred through an agreement, contingent or otherwise, by such Person: 
 (a) to
purchase such indebtedness or obligation or any property constituting security therefor; 
 (b) to advance or supply funds
(i) for the purchase or payment of such indebtedness or obligation, or (ii) to maintain any working capital or other balance sheet condition or any income statement condition of any other Person or otherwise to advance or make available
funds for the purchase or payment of such indebtedness or obligation; 
 (c) to lease properties or to purchase properties or
services primarily for the purpose of assuring the owner of such indebtedness or obligation of the ability of any other Person to make payment of the indebtedness or obligation; or 

(d) otherwise to assure the owner of such indebtedness or obligation against loss in respect thereof. 

In any computation of the indebtedness or other liabilities of the obligor under any Guaranty, the indebtedness or other obligations that are the subject of
such Guaranty shall be assumed to be direct obligations of such obligor. 

  
 B-8 

 “Guarantors” is defined in Section 2.2(a) and shall include any
Affiliate which has complied with the requirements of Section 9.7. 
 “Hedge Agreements” means interest
rate swap, cap or collar agreements, interest rate future or option contracts, currency swap agreements, currency future or option contracts, forward contracts and other similar agreements. 

“holder” means, with respect to any Note, the Person in whose name such Note is registered in the register maintained by the
Company pursuant to Section 13.1. 
 “INHAM Exemption” is defined in Section 6.2(e). 

“Institutional Investor” means (a) any original purchaser of a Note, (b) any holder of a Note holding more than 5%
of the aggregate principal amount of the Notes then outstanding, and (c) any bank, trust company, savings and loan association or other financial institution, any pension plan, any investment company, any insurance company, any broker or
dealer, or any other similar financial institution or entity, regardless of legal form. 
 “Investment Grade Rating” means,
at the time of determination, at least one of the following ratings of a Person’s senior, unsecured long-term indebtedness for borrowed money which is pari passu with the Notes and which does not
have the benefit of a guaranty from any Person other than any such Person that at such time also so guarantees the obligations of the Company under this Agreement and the Notes: (i) by Standard & Poor’s Rating Services, a division
of The McGraw-Hill Companies, or any successor thereof (“S&P”), “BBB-” or better, (ii) by Moody’s Investors Service, Inc., or
any successor thereof (“Moody’s”), “Baa3” or better, or (iii) by another rating agency of recognized national standing, an equivalent or better rating. 

“Lien” means any lien, security interest or other charge or encumbrance of any kind, or any other type of preferential
arrangement, including, without limitation, the lien or retained security title of a conditional vendor and any easement, right of way or other encumbrance on title to real property. 

“Make-Whole Amount” is defined in Section 8.6. 

“Margin Stock” has the meaning provided in Regulation U. 

“Material” means material in relation to the business, operations, affairs, financial condition, assets or properties of the
Company and its Subsidiaries taken as a whole. 
 “Material Acquisition” means any transaction, or any series of related
transactions, consummated on or after the date of this Agreement, by which the Reporting Entity or any of its Restricted Subsidiaries (i) acquires any going business or all or substantially all of the assets of any firm, partnership, joint
venture, corporation (including a business trust), joint stock company, trust, unincorporated association, limited liability company, or division thereof or other entity, whether through purchase of assets, merger or otherwise or (ii) directly
or indirectly acquires (in one transaction or a series of transactions) at least a majority of the voting power of all Voting 

  
 B-9 

 
Stock of a Person (on a fully diluted basis), if the aggregate amount of Debt incurred by one or more of the Reporting Entity and its Restricted Subsidiaries to finance the purchase price of, or
other consideration for, and/or assumed by one or more of them in connection with, such acquisition is at least $150,000,000. 

“Material Adverse Effect” means a material adverse effect on (a) the business, operations, affairs, financial condition,
assets or properties of the Reporting Entity and its Subsidiaries taken as a whole, or (b) the ability of the Company or the Reporting Entity to perform its obligations under this Agreement, any Supplemental Note Purchase Agreement, the Notes
and any Security Document to which it is a party, or (c) the validity or enforceability of this Agreement, any Supplemental Note Purchase Agreement, the Notes or any of the Security Documents. 

“Material Credit Facility” means, as to the Reporting Entity and its Subsidiaries, 

(a) the Bank Credit Agreement; 

(b) the 2012 Note Purchase Agreement including any renewals, extensions, amendments, supplements, restatements, replacements or
refinancing thereof; 
 (c) the 2003 Note Purchase Agreement, including any renewals, extensions, amendments, supplements,
restatements, replacements or refinancing thereof; and 
 (d) any other agreement(s) creating or evidencing indebtedness for
borrowed money entered into on or after the Closing Date by the Reporting Entity or any Restricted Subsidiary, or in respect of which the Reporting Entity or any Restricted Subsidiary is an obligor or otherwise provides a guarantee or other credit
support (“Credit Facility”), in a principal amount outstanding or available for borrowing equal to or greater than $250,000,000 (or the equivalent of such amount in the relevant currency of payment, determined as of the date of the
closing of such facility based on the exchange rate of such other currency). 
 “Material Subsidiary” means a Subsidiary
that has total assets (on a consolidated basis with its Subsidiaries) of $80,000,000 or more. 
 “Multiemployer Plan” means
any Plan that is a “multiemployer plan” (as such term is defined in Section 4001(a)(3) of ERISA). 
 “NAIC Annual
Statement” is defined in Section 6.2(a). 
 “New STERIS Limited” means New STERIS Limited, a private
limited company organized under the laws of England and Wales, and any successor thereto. 
 “Noteholder” is defined in
Section 1.1. 
 “Notes” is defined in Section 1. 

  
 B-10 

 “OFAC” is defined in Section 5.16(a). 

“OFAC Listed Person” is defined in Section 5.16(a). 

“OFAC Sanctions Program” means any economic or trade sanction that OFAC is responsible for administering and enforcing. A
list of OFAC Sanctions Programs may be found at http://www.treasury.gov/resource-center/sanctions/Programs/Pages/Programs.aspx. 

“Offeree Letter” means that certain letter dated August 15, 2008 from Merrill Lynch, Pierce, Fenner & Smith
Incorporated, setting forth the procedures taken with respect to the offer and sale of the Original Series A Notes and the subsidiary guaranties and any Offeree Letter delivered in connection with a Supplemental Note Purchase Agreement which
shall be dated the date on or about the date of any such Supplemental Note Purchase Agreement. 
 “Officer’s
Certificate” means a certificate of a Senior Financial Officer or of any other officer of the Company whose responsibilities extend to the subject matter of such certificate. 

“Original Series A Notes” is defined in Section 1.1. 

“PBGC” means the Pension Benefit Guaranty Corporation referred to and defined in ERISA or any successor thereto. 

“Permitted Encumbrances” means: 

(a) judgment liens in respect of judgments that do not constitute an Event of Default under Section 11(i);

 (b) statutory and contractual Liens in favor of a landlord on real property leased or subleased by or to any member of the
Consolidated Group; provided that, if the lease or sublease is to a member of the Consolidated Group, such member is current with respect to payment of all rent and other amounts due to the lessor or sublessor under any lease or sublease of
such real property, except where the failure to be current in payment would not, individually or in the aggregate, be reasonably likely to result in a Material Adverse Effect; 

(c) banker’s liens, rights of setoff or similar rights and remedies as to deposit accounts or other funds maintained with
depository institutions and securities accounts and other financial assets maintained with a securities intermediary; provided that such deposit accounts or funds and securities accounts or other financial assets are not established or
deposited for the purpose of providing collateral for any Debt and are not subject to restrictions on access by any member of the Consolidated Group in excess of those required by applicable banking regulations; 

(d) Liens arising by virtue of Uniform Commercial Code financing statement filings (or similar filings under applicable law)
regarding operating leases entered into by any member of the Consolidated Group in the ordinary course of business; 

  
 B-11 

 (e) Liens in favor of customs and revenue authorities arising as a matter of law
to secure payment of customs duties in connection with the importation of goods; 
 (f) Liens solely on any cash earnest
money deposits made by any member of the Consolidated Group in connection with any letter of intent or purchase agreement relating to an acquisition; 

(g) Liens arising out of conditional sale, title retention, consignment or similar arrangements for sale of goods entered into
by any member of the Consolidated Group in the ordinary course of business and permitted by this Agreement; 
 (h) options,
put and call arrangements, rights of first refusal and similar rights relating to investments in joint ventures, partnerships and the like; and 

(i) Liens securing obligations in respect of letters of credit, bank guarantees, warehouse receipts or similar instruments
issued to support performance obligations (other than obligations in respect of Debt) and trade-related letters of credit, in each case, outstanding on the Closing Date or issued thereafter in and covering the
goods (or the documents of title in respect of such goods) financed by such letters of credit, banker’s acceptances or bank guarantees and the proceeds and products thereof. 

“Permitted Receivables Facility” means an accounts receivable facility established by the Receivables Subsidiary and
Reporting Entity or any of its Subsidiaries, whereby the Reporting Entity or such Subsidiary shall have sold or transferred the accounts receivables of the Reporting Entity or such Subsidiary to the Receivables Subsidiary which in turn transfers to
a buyer, purchaser or lender undivided fractional interests in such accounts receivable, so long as (a) no portion of the Debt or any other obligation (contingent or otherwise) under such Permitted Receivables Facility shall be guaranteed by
the Reporting Entity or its Subsidiaries (other than the Receivables Subsidiary), (b) there shall be no recourse or obligation to the Reporting Entity or its Subsidiaries (other than the Receivables Subsidiary) whatsoever other than pursuant to
representations, warranties, covenants and indemnities entered into in the ordinary course of business in connection with such Permitted Receivables Facility that in the reasonable opinion of the Company are customary for securitization
transactions, and (c) the Reporting Entity and its Subsidiaries (other than the Receivables Subsidiary) shall not have provided, either directly or indirectly, any other credit support of any kind in connection with such Permitted Receivables
Facility, other than as set forth in clause (b) of this definition. 
 “Person” means an individual, sole
proprietorship, partnership, joint venture, corporation, limited liability company, association, institution, estate, trust, unincorporated organization, or a government or agency or political subdivision thereof or any other entity. 

“Plan” means an “employee benefit plan” (as defined in Section 3(3) of ERISA) that is or, within the preceding
five years, has been established or maintained, or to which contributions are or, within the preceding five years, have been made or required to be made, by the Company or any ERISA Affiliate or with respect to which the Company or any ERISA
Affiliate may have any liability. 

  
 B-12 

 “Priority Debt” means, without duplication, the sum of the aggregate principal
amount of (a) all Debt and other obligations of the Reporting Entity and its Restricted Subsidiaries secured by Liens pursuant to Section 10.3(j) and (b) all Debt of Restricted Subsidiaries (other than the Company) that are not
Guarantors incurred pursuant to Section 10.1(h); provided however Priority Debt shall not include the Notes and any Debt or other obligations with which the Notes are equally and ratably secured pursuant to the requirements of
Section 9.8. 
 “property” or “properties” means, unless otherwise specifically limited, real
or personal property of any kind, tangible or intangible, choate or inchoate. 
 “Proposed Prepayment Date” is defined in
Section 8.7(c). 
 “QPAM Exemption” is defined in Section 6.2(d). 

“Receivables Related Assets” means, collectively, accounts receivable, instruments, chattel paper, obligations, general
intangibles and other similar assets, in each case relating to receivables subject to the Permitted Receivables Facility, including interests in merchandise or goods, the sale or lease of which gave rise to such receivables, related contractual
rights, guaranties, insurance proceeds, collections and proceeds of all of the foregoing. 
 “Receivables Subsidiary” means
a wholly-owned Subsidiary of the Reporting Entity that has been established as a “bankruptcy remote” Subsidiary for the sole purpose of acquiring accounts receivable under the Permitted Receivables
Facility and that shall not engage in any activities other than in connection with the Permitted Receivables Facility. 
 “Relevant
Taxes” is defined in Section 23(a). 
 “Reporting Entity” means the Company, or after the Company Merger,
New STERIS Limited. 
 “Required Holders” means, at any time, subject to Section 17.1, the holders of at least
51% in principal amount of each Series of the Notes at the time outstanding (exclusive of Notes then owned by the Company or any of its Affiliates). 

“Responsible Officer” means any Senior Financial Officer and any other officer of the Company with responsibility for the
administration of the relevant portion of this Agreement. 
 “Restricted Margin Stock” means Margin Stock owned by the
Reporting Entity and its Subsidiaries the value of which (determined as required under clause 2(i) of the definition of “Indirectly Secured” set forth in Regulation U) represents not more than 33% of the aggregate value (determined as
required under clause (2)(i) of the definition of “Indirectly Secured” set forth in Regulation U), on a consolidated basis, of the property and assets of the Reporting Entity and its Subsidiaries (excluding any Margin Stock) that is
subject to the provisions of Sections 10.3 or 10.4. 

  
 B-13 

 “Restricted Subsidiary” means (i) any Subsidiary (a) of which more
than 80% (by number of votes) of the Voting Stock is beneficially owned, directly or indirectly, by the Reporting Entity, and (b) which is designated a “Restricted Subsidiary” on Schedule 5.4 or pursuant to
Section 10.7 and (ii) if the Company is not the Reporting Entity, the Company. 
 “Securities Act” means
the Securities Act of 1933, as amended from time to time. 
 “Security Documents” is defined in Section 2.2(b).

 “Senior Financial Officer” means the chief executive officer, chief financial officer, principal accounting officer,
treasurer or comptroller of the Company or Reporting Entity, as applicable. 
 “Series” means any series of notes issued
hereunder. For the avoidance of doubt, the Amended Notes shall constitute a single Series hereunder, and any Supplemental Notes shall constitute a separate Series, as identified in the related Supplemental Note Purchase Agreement. 

“Series A-2 Notes” is defined in Section 1.1. 

“Series A-3 Notes” is defined in Section 1.1. 

“Settlement Date” is defined in Section 6.2. 

“Significant Restricted Subsidiary” means at any time (i) any Restricted Subsidiary that would at such time constitute a
“Significant Subsidiary” (as such term is defined in Regulation S-X of the Securities and Exchange Commission as in effect on the date of the Closing) of the Reporting Entity and (ii) if
the Company is not the Reporting Entity, the Company. 
 “Source” is defined in Section 6.2. 

“Subsidiary” means, as to any Person, any corporation, association or other business entity in which such Person or one or
more of its Subsidiaries or such Person and one or more of its Subsidiaries owns sufficient equity or voting interests to enable it or them (as a group) ordinarily, in the absence of contingencies, to direct policies, management and affairs of such
entity, and any partnership or joint venture if more than a 50% interest in the profits or capital thereof is owned by such Person or one or more of its Subsidiaries or such Person and one or more of its Subsidiaries (unless such partnership can and
does ordinarily take major business actions without the prior approval of such Person or one or more of its Subsidiaries). Unless the context otherwise clearly requires, any reference to a “Subsidiary” is a reference to a Subsidiary of the
Reporting Entity. 
 “Supplemental Closing” is defined in Section 2.3. 

“Supplemental Closing Date” is defined in Section 2.3. 

“Supplemental Note Purchase Agreement” is defined in Section 2.3. 

  
 B-14 

 “Supplemental Notes” is defined in Section 1.2. 

“Supplemental Purchaser Schedule” means the Schedule of Purchasers of any Series of Supplemental Notes which is attached
to the Supplemental Note Purchase Agreement relating to such Series. 
 “Supplemental Purchasers” is defined in
Section 2.3. 
 “Synergy Acquisition” means (a) the Company Merger and (b) the indirect or direct
acquisition of all of the outstanding shares of Synergy Health plc subject to a scheme document or offer document by New STERIS Limited, pursuant to a scheme of arrangement under section 895 of the UK Companies Act or “takeover offer”
within the meaning of section 974 (other than section 974 (2)(b)) of the UK Companies Act. 
 “Synergy Closing Date”
is defined in Section 10.2(a). 
 “Synergy Health plc” means Synergy Health plc, a public limited company organized
under the laws of England and Wales and any successor thereto. 
 “Tax Indemnity Amounts” is defined in Section
23(a). 
 “Taxing Jurisdiction” is defined in Section 23(a). 

“Transactions” means (i) the Synergy Acquisition, (ii) the entry into new senior notes in connection with the
Synergy Acquisition, (iii) the entry into the Bank Credit Agreement and (iv) the refinancing, prepayment, repayment, redemption, discharge, defeasance and/or amendment of all existing Company indebtedness and existing Synergy Health plc
indebtedness. 
 “2003 Note Purchase Agreement” means that certain Amended and Restated Note Purchase Agreement dated as of
the date hereof between the Company and each of the institutions named in Schedule A thereto amending and restating those certain Note Purchase Agreements each dated as of December 17, 2003 between the Company and each of the institutions
named in Schedule A thereto. 
 “2003 Notes” means those certain Notes issued under and pursuant to the 2003 Note
Purchase Agreements, as amended and restated. 
 “2012 Note Purchase Agreement” means that certain Amended and Restated
Note Purchase Agreement dated as of the date hereof between the Company and each of the institutions named in Schedule A thereto amending and restating those certain Note Purchase Agreements each dated as of December 4, 2012 between the
Company and each of the institutions named in Schedule A thereto. 
 “2012 Notes” means those certain Notes issued
under and pursuant to the 2012 Note Purchase Agreements, as amended and restated. 

  
 B-15 

 “United States Taxes” is defined in Section 23(a). 

“Unrestricted Margin Stock” means any Margin Stock owned by the Reporting Entity and its Subsidiaries which is not Restricted
Margin Stock. 
 “Unrestricted Subsidiary” means any Subsidiary which is not a Restricted Subsidiary. 

“U.S. Dollars” is defined in Section 23(b). 

“USA PATRIOT Act” means United States Public Law 107-56, Uniting and Strengthening
America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism (USA PATRIOT ACT) Act of 2001, as amended from time to time, and the rules and regulations promulgated thereunder from time to time in effect. 

“U.S. Economic Sanctions” is defined in Section 5.16(a). 

“Voting Stock” means shares of capital stock issued by a corporation, or equivalent interests in any other Person, the
holders of which are ordinarily, in the absence of contingencies, entitled to vote for the election of directors (or persons performing similar functions) of such Person, even if the right so to vote has been suspended by the happening of such a
contingency. 

  
 B-16 

 [FORM OF
SERIES A-2 NOTE] 
 STERIS CORPORATION

 6.33% Senior Notes, Series A-2, due August 15, 2018 

 

			
	 No. [            ]
		[Date]
	 $[        ]
		PPN 859152 C#5

 For Value Received, the undersigned, STERIS CORPORATION (herein called the
“Company”), a corporation organized and existing under the laws of the State of Ohio, hereby promises to pay to
[                    ], or registered assigns, the principal sum of [        ] Dollars on August 15,
2018, with interest (computed on the basis of a 360-day year of twelve 30-day months) (a) on the unpaid balance thereof at, subject to the second paragraph of this
Note, the rate of 6.33% per annum from the last date to which interest has been paid on the Original Series A Note (as defined in the hereinafter defined Note Purchase Agreement) which this Note amends, payable semiannually, on the
fifteenth day of February and August in each year, commencing with the February 15 or August 15 next succeeding the date hereof, until the principal hereof shall have become due and payable, and (b) to the extent permitted by law
on any overdue payment (including any overdue prepayment) of principal, any overdue payment of interest and any overdue payment of any Make-Whole Amount (as defined in the Note Purchase Agreements referred to
below), payable semiannually as aforesaid (or, at the option of the registered holder hereof, on demand), at, subject to the second paragraph of this Note, a rate per annum from time to time equal to the Default Rate. Capitalized terms used in this
Note and not otherwise defined shall have the meanings set forth in the hereinafter defined Note Purchase Agreement. 
 In the event the
ratio of Consolidated Total Debt to Consolidated EBITDA as of the last day of any fiscal quarter of the Reporting Entity (x) is above 2:25 to 1:00, but equal to or less than 3:00 to 1:00, the applicable rate of interest per annum of this Note
set forth in clause (a) and (b) of the first paragraph of this Note shall be increased by 0.50% per annum, or (y) is above 3:00 to 1:00, the applicable rate of interest per annum of this Note set forth in clause (a) and
(b) of the first paragraph of this Note shall be increased by 0.75% per annum. Changes to the applicable rate of interest shall be effective as of the first day of the first calendar month after the date upon which the Reporting Entity has
delivered the financial statements required pursuant to Sections 7.1(a) and 7.1(b) of the Note Purchase Agreement and the officer’s certificate pursuant to Section 7.2(a) of the Note Purchase Agreement evidencing that
the ratio of Consolidated Total Debt to Consolidated EBITDA as of the last day of any fiscal quarter of the Reporting Entity is above 2:25 to 1:00 or 3:00 to 1:00, as the case may be, until the first day of the first calendar month after the
date upon which the Reporting Entity has delivered the financial statements pursuant to Sections 7.1(a) and 7.1(b) of the Note Purchase Agreement and the officer’s certificate pursuant to Section 7.2(a) of the Note
Purchase Agreement evidencing that the ratio of Consolidated Total Debt to Consolidated EBITDA as of the last day of any fiscal quarter of the Reporting Entity is equal to or less than 2:25 to 1:00 or 3:00 to 1:00, as the case may be;
provided that the applicable rate of interest per annum of this Note set forth in clause (a) and (b) of the first paragraph of this Note shall be increased by 0.75% per annum effective as of the first day of the first calendar
month after the 

  

EXHIBIT 1-B 

(to Note Purchase Agreement) 

 
date upon which the Reporting Entity fails to deliver the financial statements required pursuant to Sections 7.1(a) and 7.1(b) of the Note Purchase Agreement and the officer’s
certificate required pursuant to Section 7.2(a) of the Note Purchase Agreement, in each case, on or prior to the end of the month in which occurs the applicable deadline specified in the Note Purchase Agreement for such delivery, until
the delivery thereof, and beginning on the date of such delivery, the applicable rate of interest per annum shall be based on the ratio of Consolidated Total Debt to Consolidated EBITDA reflected in such financial statements and officer’s
certificate. 
 Notwithstanding the foregoing, during the period from and after the Synergy Closing Date to and until the first day of the
first calendar month after the date upon which the Reporting Entity has delivered the financial statements pursuant to Section 7.1(a) and 7.1(b) of the Note Purchase Agreement and the officer’s certificate pursuant to
Section 7.2(a) of the Note Purchase Agreement with respect to the first full fiscal quarter ending after the Synergy Closing Date, the applicable rate of interest per annum of this Note set forth in clause (a) and (b) of the
first paragraph of this Note shall be increased by 0.50% per annum. 
 Payments of principal of, interest on and any Make-Whole Amount with respect to this Note are to be made in lawful money of the United States of America at Bank of New York in New York, New York or at such other place as the Company shall have
designated by written notice to the holder of this Note as provided in the Note Purchase Agreement referred to below. 
 This Note is one of
the 6.33% Senior Notes, Series A-2, due August 15, 2018 (the “Series A-2 Notes”) of the Company in the aggregate principal amount of
$85,000,000 which, together with the Company’s $35,000,000 aggregate principal amount 6.43% Senior Notes, Series A-3, due August 15, 2020 (the
“Series A-3 Notes”; the Series A-2 Notes and the Series A-3 Notes being hereinafter referred to
collectively as the “Series A Notes”) are outstanding under that Amended and Restated Note Purchase Agreement, dated as of March 31, 2015 (as from time to time amended, amended and restated or supplemented, the
“Note Purchase Agreement”), between the Company and the Noteholders named therein and is entitled to the benefits thereof together with additional Series of Notes from time to time issued thereunder (the “Supplemental
Notes,” and collectively with the Series A Notes, the “Notes”). Each holder of this Note will be deemed, by its acceptance hereof, (i) to have agreed to the confidentiality provisions set forth in
Section 20 of the Note Purchase Agreement and (ii) to have made the representation set forth in Section 6.1 and Section 6.2 and (iii) to have agreed to the covenants and agreements of the holders set
forth in the Note Purchase Agreement. 
 This Note is a registered Note and, as provided in the Note Purchase Agreement, upon surrender of
this Note for registration of transfer, duly endorsed, or accompanied by a written instrument of transfer duly executed, by the registered holder hereof or such holder’s attorney duly authorized in writing, a new Note for a like principal
amount will be issued to, and registered in the name of, the transferee. Prior to due presentment for registration of transfer, the Company may treat the person in whose name this Note is registered as the owner hereof for the purpose of receiving
payment and for all other purposes, and the Company will not be affected by any notice to the contrary. 

  
 E-1-B-2 

 This Note is subject to optional prepayment, in whole or from time to time in part, at the times
and on the terms specified in the Note Purchase Agreement, but not otherwise. 
 If an Event of Default, as defined in the Note Purchase
Agreement, occurs and is continuing, the principal of this Note may be declared or otherwise become due and payable in the manner, at the price (including any applicable Make-Whole Amount) and with the effect
provided in the Note Purchase Agreement. 

  
 E-1-B-3 

 This Note shall be construed and enforced in accordance with, and the rights and parties shall
be governed by, the law of the State of New York, excluding choice-of-law principles of the law of such State which would require application of the laws of the
jurisdiction other than such State. 
  

			
	STERIS CORPORATION
		
	By:		  

			[Title]

  
 E-1-B-4 

 [FORM OF SERIES
A-3 NOTE] 
 STERIS CORPORATION 

6.43% Senior Notes, Series A-3, due August 15, 2020 

 

			
	No. [            ]		[Date]
	$[            ]		PPN 859152 D@6

 For Value Received, the undersigned, STERIS Corporation (herein called the “Company”), a
corporation organized and existing under the laws of the State of Ohio, hereby promises to pay to [                    ], or registered assigns, the
principal sum of [        ] Dollars on August 15, 2020, with interest (computed on the basis of a 360-day year of twelve
30-day months) (a) on the unpaid balance thereof at, subject to the second paragraph of this Note, the rate of 6.43% per annum from the last date to which interest has been paid on the Original
Series A Note (as defined in the hereinafter defined Note Purchase Agreement) which this Note amends, payable semiannually, on the fifteenth day of February and August in each year, commencing with the February 15 or
August 15 next succeeding the date hereof, until the principal hereof shall have become due and payable, and (b) to the extent permitted by law on any overdue payment (including any overdue prepayment) of principal, any overdue
payment of interest and any overdue payment of any Make-Whole Amount (as defined in the Note Purchase Agreement referred to below), payable semiannually as aforesaid (or, at the option of the registered holder
hereof, on demand), at, subject to the second paragraph of this Note, a rate per annum from time to time equal to the Default Rate. Capitalized terms used in this Note and not otherwise defined shall have the meanings set forth in the hereinafter
defined Note Purchase Agreement. 
 In the event the ratio of Consolidated Total Debt to Consolidated EBITDA as of the last day of any
fiscal quarter of the Reporting Entity (x) is above 2:25 to 1:00, but equal to or less than 3:00 to 1:00, the applicable rate of interest per annum of this Note set forth in clause (a) and (b) of the first paragraph of this Note shall
be increased by 0.50% per annum, or (y) is above 3:00 to 1:00, the applicable rate of interest per annum of this Note set forth in clause (a) and (b) of the first paragraph of this Note shall be increased by 0.75% per annum.
Changes to the applicable rate of interest shall be effective as of the first day of the first calendar month after the date upon which the Reporting Entity has delivered the financial statements required pursuant to Sections 7.1(a) and
7.1(b) of the Note Purchase Agreement and the officer’s certificate pursuant to Section 7.2(a) of the Note Purchase Agreement evidencing that the ratio of Consolidated Total Debt to Consolidated EBITDA as of the last day of
any fiscal quarter of the Reporting Entity is above 2:25 to 1:00 or 3:00 to 1:00, as the case may be, until the first day of the first calendar month after the date upon which the Reporting Entity has delivered the financial statements pursuant
to Sections 7.1(a) and 7.1(b) of the Note Purchase Agreement and the officer’s certificate pursuant to Section 7.2(a) of the Note Purchase Agreement evidencing that the ratio of Consolidated Total Debt to Consolidated
EBITDA as of the last day of any fiscal quarter of the Reporting Entity is equal to or less than 2:25 to 1:00 or 3:00 to 1:00, as the case may be; provided that the applicable rate of interest per annum of this Note set forth in clause
(a) and (b) of the first paragraph of this Note shall be increased by 0.75% per annum effective as of the first day of the first calendar month after the 

  

EXHIBIT 1-C 

(to Note Purchase Agreement) 

 
date upon which the Reporting Entity fails to deliver the financial statements required pursuant to Sections 7.1(a) and 7.1(b) of the Note Purchase Agreement and the officer’s
certificate required pursuant to Section 7.2(a) of the Note Purchase Agreement, in each case, on or prior to the end of the month in which occurs the applicable deadline specified in the Note Purchase Agreement for such delivery, until
the delivery thereof, and beginning on the date of such delivery, the applicable rate of interest per annum shall be based on the ratio of Consolidated Total Debt to Consolidated EBITDA reflected in such financial statements and officer’s
certificate. 
 Notwithstanding the foregoing, during the period from and after the Synergy Closing Date to and until the first day of the
first calendar month after the date upon which the Reporting Entity has delivered the financial statements pursuant to Section 7.1(a) and 7.1(b) of the Note Purchase Agreement and the officer’s certificate pursuant to
Section 7.2(a) of the Note Purchase Agreement with respect to the first full fiscal quarter ending after the Synergy Closing Date, the applicable rate of interest per annum of this Note set forth in clause (a) and (b) of the
first paragraph of this Note shall be increased by 0.50% per annum. 
 Payments of principal of, interest on and any Make-Whole Amount with respect to this Note are to be made in lawful money of the United States of America at Bank of New York in New York, New York or at such other place as the Company shall have
designated by written notice to the holder of this Note as provided in the Note Purchase Agreement referred to below. 
 This Note is
one of the 6.43% Senior Notes, Series A-3, due August 15, 2020 (the “Series A-3 Notes”) of the Company in the aggregate principal amount
of $35,000,000 which, together with the Company’s $85,000,000 aggregate principal amount 6.33% Senior Notes, Series A-2, due August 15, 2018 (the
“Series A-2 Notes”; the Series A-2 Notes and the Series A-3 Notes being hereinafter referred to
collectively as the “Series A Notes”) are outstanding under that Amended and Restated Note Purchase Agreement, dated as of March 31, 2015 (as from time to time amended, amended and restated or supplemented, the “Note
Purchase Agreement”), between the Company and the respective Purchasers named therein and is entitled to the benefits thereof together with additional Series of Notes from time to time issued thereunder (the “Supplemental
Notes,” and collectively with the Series A Notes, the “Notes”). Each holder of this Note will be deemed, by its acceptance hereof, (i) to have agreed to the confidentiality provisions set forth in
Section 20 of the Note Purchase Agreement and (ii) to have made the representation set forth in Section 6.1 and Section 6.2 and (iii) to have agreed to the
covenants and agreements of the holders set forth in the Note Purchase Agreement. 
 This Note is a registered Note and, as provided
in the Note Purchase Agreement, upon surrender of this Note for registration of transfer, duly endorsed, or accompanied by a written instrument of transfer duly executed, by the registered holder hereof or such holder’s attorney duly authorized
in writing, a new Note for a like principal amount will be issued to, and registered in the name of, the transferee. Prior to due presentment for registration of transfer, the Company may treat the person in whose name this Note is registered as the
owner hereof for the purpose of receiving payment and for all other purposes, and the Company will not be affected by any notice to the contrary. 

  
 E-1-C-2 

 This Note is subject to optional prepayment, in whole or from time to time in part, at the times
and on the terms specified in the Note Purchase Agreement, but not otherwise. 
 If an Event of Default, as defined in the Note Purchase
Agreement, occurs and is continuing, the principal of this Note may be declared or otherwise become due and payable in the manner, at the price (including any applicable Make-Whole Amount) and with the effect
provided in the Note Purchase Agreement. 

  
 E-1-C-3 

 This Note shall be construed and enforced in accordance with, and the rights and parties shall
be governed by, the law of the State of New York, excluding choice-of-law principles of the law of such State which would require application of the laws of the
jurisdiction other than such State. 
  

			
	STERIS CORPORATION
		
	By:		  

			[Title]

  
 E-1-C-4 

 [FORM OF SUPPLEMENTAL NOTE]

 STERIS CORPORATION 

    % Senior Note, Series     , due
                 ,          
  

			
	 No. [            ]
		[Date]
	 $[            ]
		PPN[                    ]

 For Value Received, the undersigned, STERIS CORPORATION (herein called the
“Company”), a corporation organized and existing under the laws of the State of Ohio, hereby promises to pay to [        ], or registered assigns, the principal sum of
[        ] DOLLARS on                  ,         , with interest (computed
on the basis of a 360-day year of twelve 30-day months) (a) on the unpaid balance thereof at the rate of     % per annum from the date hereof,
payable semiannually, on the         day of         and         in each year, commencing with the
[                    ] or [                    ]
next succeeding the date hereof, until the principal hereof shall have become due and payable, and (b) to the extent permitted by law on any overdue payment (including any overdue prepayment) of principal, any overdue payment of interest and
any overdue payment of any Make-Whole Amount (as defined in the Note Purchase Agreement referred to below), payable semiannually as aforesaid (or, at the option of the registered holder hereof, on demand), at
a rate per annum from time to time equal to     %. Capitalized terms used in this Note and not otherwise defined shall have the meanings set forth in the hereinafter defined Note Purchase Agreement. 

Payments of principal of, interest on and any Make-Whole Amount with respect to this Note are to be
made in lawful money of the United States of America at [        ] or at such other place as the Company shall have designated by written notice to the holder of this Note as provided in the Note Purchase
Agreement referred to below. 
 This Note is one of a series of Senior Notes (herein called the
“Series     Notes”) issued pursuant to a Supplemental Note Purchase Agreement dated as of
                     to that Amended and Restated Note Purchase Agreement, dated as of March 31, 2015 (as from time to time amended, amended and
restated or supplemented, the “Note Purchase Agreement”), between the Company and the respective Purchasers named therein and is entitled to the benefits thereof, together with additional Series of Notes from time to time
issued thereunder (the “Supplemental Notes,” and collectively with the notes issued under the Note Purchase Agreement, the “Notes”). Each holder of this Note will be deemed, by its acceptance hereof, (i) to
have agreed to the confidentiality provisions set forth in Section 20 of the Note Purchase Agreement and (ii) to have made the representation set forth in Section 6.1 and Section 6.2 and (iii) to have
agreed to the covenants and agreements of the holders set forth in the Note Purchase Agreement. 
 This Note is a registered Note and, as
provided in the Note Purchase Agreement, upon surrender of this Note for registration of transfer, duly endorsed, or accompanied by a written instrument of transfer duly executed, by the registered holder hereof or such holder’s attorney duly

  

EXHIBIT 1.5 

(to Note Purchase Agreement) 

 
authorized in writing, a new Note for a like principal amount will be issued to, and registered in the name of, the transferee. Prior to due presentment for registration of transfer, the Company
may treat the person in whose name this Note is registered as the owner hereof for the purpose of receiving payment and for all other purposes, and the Company will not be affected by any notice to the contrary. 

[The Company will make required prepayments of principal on the dates and in the amounts specified in the Note Purchase Agreement.] [This Note
is [also] subject to [optional] prepayment, in whole or from time to time in part, at the times and on the terms specified in the Note Purchase Agreement, but not otherwise.] 

If an Event of Default, as defined in the Note Purchase Agreement, occurs and is continuing, the principal of this Note may be declared or
otherwise become due and payable in the manner, at the price (including any applicable Make-Whole Amount) and with the effect provided in the Note Purchase Agreement. 

This Note shall be construed and enforced in accordance with, and the rights and parties shall be governed by, the law of the State of
New York, excluding choice-of-law principles of the law of such State which would require application of the laws of the jurisdiction other than such State.

  

			
	STERIS CORPORATION
		
	By:	 	  

		 	 [Title]

  
 E-1.5-2 

 FORM OF SUPPLEMENTAL NOTE
PURCHASE AGREEMENT 
 STERIS CORPORATION 

5960 HEISLEY ROAD 

MENTOR, OHIO 44060-1834 

As of             ,          

To Each of the Purchasers 
 Named in the Supplemental 

Purchaser Schedule Attached Hereto 
 Ladies and Gentlemen: 

Reference is made to that certain Amended and Restated Note Purchase Agreement, dated as of March 31, 2015 between the Company and each
of the Noteholders named in Schedule A attached thereto (as from time to time amended, amended and restated or supplemented, the “Agreement”). Terms used but not defined herein shall have the respective meanings set forth in the
Agreement. 
 As contemplated in Section 2.3 of the Agreement, the Company agrees with you as follows: 

A. Subsequent Series of Notes. The Company has authorized and will create a Subsequent Series of Notes to be called the
“Series      Notes.” Said Series      Notes will be dated the date of issue; will bear interest (computed on the basis of a 360-day year of twelve 30-day months) from such date at the rate of     % per annum, payable semiannually in arrears on the      day of each          and
         in each year (commencing             ,         ) until the principal amount thereof shall become due
and payable and shall bear interest on overdue principal (including any overdue optional prepayment of principal) and premium, if any, and, to the extent permitted by law, on any overdue installment of interest at the rate specified therein after
the date due for payment, whether by acceleration or otherwise, until paid; will be expressed to mature on             ,         ; and will be
substantially in the form attached to the Agreement as Exhibit 1.5 with the appropriate insertions to reflect the terms and provisions set forth above. 

B. Purchase and Sale of Series      Notes. The Company hereby agrees to sell to each Supplemental Purchaser
set forth on the Supplemental Purchaser Schedule attached hereto (collectively, the “Series      Purchasers”) and, subject to the terms and conditions in the Agreement and herein set forth, each
Series      Purchaser agrees to purchase from the Company the aggregate principal amount of the Series      Notes set opposite each Series      Purchaser’s name in the
Supplemental Purchaser Schedule at 100% of the aggregate principal amount. The sale of the Series      Notes shall take place at the offices of Chapman and Cutler LLP, 111 West Monroe Street, Chicago, Illinois 60603 at
10:00 a.m. Chicago time, at a closing the (“Series      Closing”) on             ,         , or such
other date as shall be agreed upon by the Company and each Series      Purchaser. At the Series      Closing the Company will deliver to each Series     

  

EXHIBIT 2.3 

(to Note Purchase Agreement) 

 
Purchaser one or more Series      Notes registered in such Series      Purchaser’s name (or in the name of its nominee), evidencing the
aggregate principal amount of Series      Notes to be purchased by said Series      Purchaser and in the denomination or denominations specified with respect to such
Series      Purchaser in the Supplemental Purchaser Schedule attached hereto against payment of the purchase price thereof by transfer of immediately available funds for credit to the Company’s account on the date of
the Series      Closing (the “Series      Closing Date”) (as specified in a notice to each Series      Purchaser at least three Business Days prior to the
Series      Closing Date).  
 C. Conditions of Series      Closing. The
obligation of each Series      Purchaser to purchase and pay for the Series      Notes to be purchased by such purchaser hereunder on the Series      Closing Date is subject
to the satisfaction, on or before such Series      Closing Date, of the conditions set forth in Section 4 of the Agreement, and to the following additional conditions: 

(a) Except as supplemented, amended or superseded by the representations and warranties set forth in Exhibit A hereto,
each of the representations and warranties of the Company set forth in Section 5 of the Agreement shall be correct as of the Series      Closing Date and the Company shall have delivered to each
Series      Purchaser an Officer’s Certificate, dated the Series      Closing Date certifying that such condition has been fulfilled. 

(b) Each Subsidiary Guarantor shall have confirmed in writing that the Series      Notes shall be
guaranteed by the Affiliate Guaranty. 
 (c) Contemporaneously with the Series      Closing, the
Company shall sell to each Series      Purchaser, and each Series      Purchaser shall purchase, the Series      Notes to be purchased by such
Series      Purchaser at the Series      Closing as specified in the Supplemental Purchaser Schedule. 

D. Prepayments. The Series      Notes shall be subject to prepayment only (a) pursuant to the required
prepayments, if any, specified in clause (x) below; and (b) pursuant to the optional prepayments permitted by Section 8.2 of the Agreement. 

(x) Required Prepayments; Maturity 

[to be determined] 

(y) Optional and Contingent Prepayments. As provided in Section 8.2 of the Agreement. 

E. Purchaser Representations. Each Series      Purchaser represents and warrants that the representations and
warranties set forth in Section 6.1 and 6.2 of the Agreement are true and correct on the date hereof with respect to the purchase of the Series      Notes by such Series     
Purchaser. 

  
 E-2.3-2 

 F. Series      Notes Issued under and Pursuant to Agreement.
Except as specifically provided above, the Series      Notes shall be deemed to be issued under, to be subject to and to have the benefit of all of the terms and provisions of the Agreement as the same may from time to time
be amended and supplemented in the manner provided therein. 

  
 E-2.3-3 

 The execution hereof by the Series     Purchasers shall constitute a
contract among the Company and the Series      Purchasers for the uses and purposes hereinabove set forth. By their acceptance hereof, each of the Series      Purchasers shall also be deemed to have accepted
and agreed to the terms and provisions of the Agreement, as in effect on the date hereof. 
  

							
					STERIS CORPORATION
				
					By:		  

							Its
				
	Accepted as of						
				
	  
						
			
					[VARIATION]
				
					By:		  

							Its

  
 E-2.3-4 

 INFORMATION RELATING TO
SERIES      PURCHASERS  
  

					
	NAME AND ADDRESS OF SERIES      PURCHASER	  	PRINCIPAL AMOUNT OF
SERIES      NOTES TO 
BE PURCHASED	 
	 [NAME OF SERIES      PURCHASER]
	  	$	            	  

  

	(1)	All payments by wire transfer of immediately available funds to: 

 with sufficient information
to identify the source and application of such funds. 
  

	(2)	All notices of payments and written confirmations of such wire transfers: 

  

	(3)	All other communications: 

  

SCHEDULE A 
 (to
Supplement) 

 EXHIBIT A 

SUPPLEMENTAL REPRESENTATIONS 

The Company represents and warrants to each Series      Purchaser that except as hereinafter set forth in this
Exhibit A, each of the representations and warranties set forth in Section 5 of the Agreement is true and correct as of the date hereof with respect to the Series      Notes with the same force and effect
as if each reference to “Series      Notes” set forth therein was modified to refer the “Series      Notes” and each reference to “this Agreement” therein was modified
to refer to the Agreement as supplemented by this Supplemental Note Purchase Agreement. The Section references hereinafter set forth correspond to the similar sections of the Agreement which are supplemented hereby:

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