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THIS DEED OF COVENANT is made on 30 October 2023

BY

(each of Ecolab Inc., Ecolab NL 10 B.V., Ecolab NL 11 B.V. and Nalco Overseas Holding B.V. is referred to herein as an "Issuer" and together, the "Issuers");

IN FAVOUR OF

WHEREAS

NOW THIS DEED OF COVENANT witnesses as follows:

All terms and expressions which have defined meanings in the Dealer Agreement or the Agency Agreement shall have the same meanings in this Deed of Covenant except

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where the context requires otherwise or unless otherwise stated.  In addition, in this Deed of Covenant the following expressions have the following meanings:

"Accountholder" means any accountholder with a Clearing System which at the Determination Date has credited to its securities account with such Clearing System one or more Entries in respect of a Global Note, except for any Clearing System in its capacity as an accountholder of another Clearing System.

"Clearing System" means each or any of Clearstream Banking S.A. Euroclear Bank SA/NV or such other clearing system as may be agreed from time to time between the Issuers and the Agent and in which Notes may from time to time be held, or any successor to such entities.

"Determination Date" means, in relation to any Global Note, the date on which such Global Note becomes void in accordance with its terms.

"Direct Rights" means the rights referred to in Clause 2.1 (Direct Rights - Creation).

"Entry" means, in relation to a Global Note, any entry which is made in the securities account of any Accountholder with a Clearing System in respect of Notes represented by such Global Note.

"Principal Amount" means, in respect of any Entry, the aggregate principal amount of the Notes to which such Entry relates.

Any reference in this Deed of Covenant to a Clause is, unless otherwise stated, to a clause hereof.

All references in this Deed of Covenant to an agreement, instrument or other document (including the Dealer Agreement and the Agency Agreement) shall be construed as a reference to that agreement, instrument or other document as the same may be amended, supplemented, replaced or novated from time to time.

Any reference in this Agreement to any legislation (whether primary legislation or regulations or other subsidiary legislation made pursuant to primary legislation) shall be construed as a reference to such legislation as the same may have been, or may from time to time be, amended or re-enacted.

Headings and sub-headings are for ease of reference only and shall not affect the construction of this Deed of Covenant.

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Any Notes issued under the Programme on or after the date of this Deed of Covenant shall have the benefit of this Deed of Covenant but shall not have the benefit of any subsequent deed of covenant relating to the Programme (unless expressly so provided in any such subsequent deed).

If any Global Note becomes void in accordance with its terms, each Accountholder shall have against the relevant Issuer all rights ("Direct Rights") which such Accountholder would have had in respect of the Notes if, immediately before the Determination Date in relation to that Global Note, it had been the holder of Definitive Notes, duly executed, authenticated and issued, in an aggregate principal amount equal to the Principal Amount of such Accountholder's Entries relating to such Global Note including (without limitation) the right to receive all payments due at any time in respect of such Definitive Notes as if such Definitive Notes had been duly presented and (in the case of final redemption of a Definitive Note) surrendered on the due date in accordance with the terms and conditions of such Note.

No further action shall be required on the part of the relevant Issuer or any other person:

provided, however, that nothing herein shall entitle any Accountholder to receive any payment in respect of any Global Note which has already been made.

The records of the Clearing Systems shall be conclusive as to the identity of the Accountholders and the respective amounts of Notes credited to their securities accounts and a statement issued by a Clearing System setting out:

shall be conclusive evidence for all purposes of this Deed of Covenant.

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If a Clearing System determines the Determination Date, such determination shall be binding on all Accountholders with such Clearing System.

A copy of this Deed of Covenant shall be deposited with and held by the Issue and Paying Agent for so long as the Programme remains in effect and thereafter until the date on which all the obligations of the Issuers under or in respect of the Notes (including, without limitation, its obligations under this Deed of Covenant) have been discharged in full.  The Issuers hereby acknowledge the right of every Accountholder to the production of a copy of this Deed of Covenant.

The Issuers shall pay all stamp, registration and other similar taxes and duties (including any interest and penalties thereon or in connection therewith) which may be payable upon or in connection with the execution and delivery of this Deed of Covenant and shall indemnify each Accountholder against any claim, demand, action, liability, damages, cost, loss or expense (including (i) an amount equal to any United Kingdom value added tax but only to the extent such Accountholder, or any member of the group to which that Accountholder belongs for value added tax purposes, reasonably determines that it is not entitled to recover (whether by credit or repayment) such value added tax and (ii) fees and disbursements of counsel to such Accountholder) which it may incur or which may be made against it as a result or arising out of or in relation to any failure to pay or delay in paying any of the same.

This Deed of Covenant shall take effect as a deed poll for the benefit of the Accountholders from time to time.

This Deed of Covenant shall enure to the benefit of each Accountholder and its (and any subsequent) successors and assigns, each of which shall be entitled severally to enforce this Deed of Covenant against the relevant Issuer.

The Issuers shall not be entitled to assign or transfer all or any of their rights, benefits and obligations hereunder.  Each Accountholder shall be entitled to assign all or any of its rights and benefits hereunder.

If at any time any provision hereof is or becomes illegal, invalid or unenforceable in any respect under the laws of any jurisdiction, neither the legality, validity or enforceability of the remaining provisions hereof nor the legality, validity or

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enforceability of such provision under the laws of any other jurisdiction shall in any way be affected or impaired thereby.

All notices and other communications to the Issuers hereunder shall be made in writing (by letter or fax) and shall be sent to the relevant Issuer at:

For Ecolab Inc.:

1 Ecolab Place

St. Paul

MN 55102

U.S.A.

Fax:+1 651 250 2573

Attention:General Counsel

For Ecolab NL 10 B.V.:

Oude Rhijnhofweg 17

2342BB Oegstgeest

The Netherlands

Fax:+31 30 6082228

Attention:Director

For Ecolab NL 11 B.V.:

Oude Rhijnhofweg 17

2342BB Oegstgeest

The Netherlands

Fax:+31 30 6082228

Attention:Director

For Nalco Overseas Holding B.V.:

Oude Rhijnhofweg 17

2342BB Oegstgeest

The Netherlands

Fax:+31 30 6082228

Attention:Director

(cc. Ecolab Inc. as specified above)

or to such other address, telex number or fax number or for the attention of such other person or department as the relevant Issuer has notified to the Accountholders.

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Every notice or other communication sent in accordance with Clause 8.1 (Address for notices) shall be effective upon receipt by the relevant Issuer provided, however, that any such notice or other communication which would otherwise take effect after 4.00 p.m. on any particular day shall not take effect until 10.00 a.m. on the immediately succeeding business day in the place of the relevant Issuer.  

This Deed of Covenant and any non-contractual obligations arising out of or in connection with it are governed by English law.

The courts of England have exclusive jurisdiction to settle any dispute (a "Dispute"), arising from or connected with this Deed of Covenant (including a dispute regarding the existence, validity or termination of this Deed of Covenant or any non-contractual obligation arising out of or in connection with this Deed of Covenant) or the consequences of its nullity.

The Issuers agree that the courts of England are the most appropriate and convenient courts to settle any Dispute and, accordingly, that they will not argue to the contrary.

Clause 9.2 (English courts) is for the benefit of the Accountholders only.  As a result, nothing in this Clause 9 (Law and jurisdiction) prevents the Accountholders from taking proceedings relating to a Dispute ("Proceedings") in any other courts with jurisdiction.  To the extent allowed by law, the Accountholders may take concurrent Proceedings in any number of jurisdictions.

The Issuers agree that the documents which start any Proceedings and any other documents required to be served in relation to those Proceedings may be served on them by being delivered to Ecolab Limited at P.O. Box 11, Winnington Avenue, Northwich, Cheshire, United Kingdom CW8 4DX or, if different, its registered office for the time being or at any address of the relevant Issuer in Great Britain at which process may be served on it in accordance with the Companies Act 2006.  If such person is not or ceases to be effectively appointed to accept service of process on behalf of the Issuers, the Issuers shall, on the written demand of any Accountholder addressed to the relevant Issuer and delivered to the relevant Issuer appoint a further person in England to accept service of process on its behalf and, failing such appointment within 15 days, any Accountholder shall be entitled to appoint such a person by written notice addressed to the relevant Issuer and delivered to the relevant Issuer.  Nothing in this paragraph shall affect the right of any Accountholder to serve process in any other manner permitted by law.  This clause applies to Proceedings in England and to Proceedings elsewhere.

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If Ecolab NL 10 B.V., Ecolab NL 11 B.V. or Nalco Overseas Holding B.V. are represented by an attorney or attorneys in connection with the signing and/or execution and/or delivery of this Deed of Covenant or any agreement or document referred to herein or made pursuant hereto and the relevant power or powers of attorney is or are expressed to be governed by the laws of The Netherlands, it is hereby expressly acknowledged and accepted by the other parties hereto that such laws shall govern the existence and extent of such attorney's or attorneys' authority and the effects of the exercise thereof.

Subject to the relevant Issuer having no Notes outstanding, any of Ecolab NL 10 B.V., Ecolab NL 11 B.V. or Nalco Overseas Holding B.V. (or all of them) may provide written notice to the Issue and Paying Agent, the Arranger and the Dealers that it is no longer to be an issuer under the Programme, in which event such Issuer (the "Resigning Issuer") shall no longer be a party to this Deed of Covenant and this Deed of Covenant shall continue as between the remaining parties to this Deed of Covenant.  Thereafter, the Resigning Issuer shall no longer be permitted to issue Notes under the Programme.

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IN WITNESS WHEREOF this Deed of Covenant has been executed by the Issuers on the date stated at the beginning of this Deed of Covenant.

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