United Utilities : Holding in compnay - 17 November 2017

TR-1: Standard form for notification of major holdings

NOTIFICATION OF MAJOR HOLDINGS (to be sent to the relevant issuer and to the FCA in Microsoft Word format if possible)i

1a. Identity of the issuer or the underlying issuer of existing shares to which voting rights are at- tachedii:	United Utilities Group PLC
1b. Please indicate if the issuer is a non-UK issuer (please mark with an "X" if appropriate)
Non-UK issuer
2. Reason for the notification (please mark the appropriate box or boxes with an "X")
An acquisition or disposal of voting rights		X
An acquisition or disposal of financial instruments
An event changing the breakdown of voting rights
Other (please specify)iii:
3. Details of person subject to the notification obligationiv
Name	Lazard Asset Management LLC
City and country of registered office (if applicable)	New York, United States of America
4. Full name of shareholder(s) (if different from 3.)v
Name	Bank of New York, Inc. - Dir Personal Bank of New York, Inc. - Global Custody CIBC-MELLON Canadian office Citibank, N.A. Hong Kong - ETC J.P. Morgan Chase - SWIFT NOMURA State Street Bank - Australia Limited State Street Bank - Custodian - ETC State Street Bank- Master Tr - ETC State Street Bank-Custody Master Trust Sumitomo Trust & Banking Co.
City and country of registered office (if applicable)
5. Date on which the threshold was crossed or reachedvi:	15 November 2017
6. Date on which issuer notified (DD/MM/YYYY):	16/11/2017
7. Total positions of person(s) subject to the notification obligation

1

% of voting rights at- tached to shares (to- tal of 8. A)	% of voting rights through financial instru- ments (total of 8.B 1 + 8.B 2)	Total of both in % (8.A + 8.B)	Total number of voting rights of issuervii
Resulting situation on the date on which threshold was crossed or reached	6.386%	N/A	6.386%	681,888, 418
Position of previous notification (if applicable)	5.051%	N/A	5.051%

8. Notified details of the resulting situation on the date on which the threshold was crossed or reachedviii
A: Voting rights attached to shares
Class/type of shares ISIN code (if possible)	Number of voting rightsix		% of voting rights
	Direct (Art 9 of Directive 2004/109/EC) (DTR5.1)	Indirect (Art 10 of Directive 2004/109/EC) (DTR5.2.1)	Direct (Art 9 of Directive 2004/109/EC) (DTR5.1)	Indirect (Art 10 of Directive 2004/109/EC) (DTR5.2.1)
GB00B39J2M42	43,543,754	6.386%
SUBTOTAL 8. A	43,543,754		6.386%

B 1: Financial Instruments according to Art. 13(1)(a) of Directive 2004/109/EC (DTR5.3.1.1 (a))
Type of financial in-	Expiration	Exercise/	Number of voting rights	% of voting rights
			that may be acquired if
strument	datex	Conversion Periodxi	the instrument is
			exercised/converted.
SUBTOTAL 8. B 1

B 2: Financial Instruments with similar economic effect according to Art. 13(1)(b) of Directive 2004/109/EC (DTR5.3.1.1 (b))
Type of financial instrument	Expiration datex	Exercise/ Conversion Pe- riod xi	Physical or cash settlementxii	Number of voting rights	% of voting rights

SUBTOTAL 8.B.2

9. Information in relation to the person subject to the notification obligation (please mark the applicable box with an "X")
Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuerxiii
Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entityxiv (please add additional rows as necessary)				X
Namexv	% of voting rights if it equals or is higher than the notifiable threshold	% of voting rights through financial in- struments if it equals or is higher than the notifiable threshold	Total of both if it equals or is higher than the notifiable threshold
Lazard Asset Management LLC	6.386%	6.386%

10. In case of proxy voting, please identify:
Name of the proxy holder	N/A
The number and % of voting rights held
The date until which the voting rights will be held

11. Additional informationxvi

Contact name: Legal & Compliance Department Contact telephone number: 0207 448 2085

Place of completion	Lazard Asset Management Limited
Date of completion	16 November 2017