CHORUS LIMITED — Major Shareholding Notification 2012

Dec 20, 2012

Disclosure of movement of 1% or more in substantial holding or change in nature of relevant interest or both

Sections 23 and 24, Securities Markets Act 1988

Relevant event being disclosed: Increase in holdings from 5.01% to 6.04%

Date of relevant event: 19 December 2012

To: NZX

And: Chorus Limited (NS)

Date this disclosure made: 20 December 2012

Date last disclosure made: 30 May 2012

Substantial security holder(s) giving disclosure

Name(s): The Bank of New York Mellon Corporation

Contact details: Nicholas R. Darrow

Email: Nicholas.darow@bnymellon.com

Telephone: 412-436-7733 Fax: 412-236-6715

Summary of substantial holding to which disclosure relates

Class of listed voting securities: Common shares ISIN NZCNUE0001S2, and ADR’s ISIN US17040V1070

Summary for: The Bank of New York Mellon Corporation, parent holding company of:

Newton Investment Management Limited

Mellon Capital Management Corporation

The Bank of New York Mellon

BNY Mellon Service Kapitalanlage_Gesellschft mbH

For this disclosure,—

• (a) total number held in class: 23,266,942

• (b) total in class: 385,082,123

• (c) total percentage held in class: 6.04%

• For last disclosure,—

• (a) total number held in class: 19,311,109

• (b) total in class: 385,082,123

• (c) total percentage held in class: 5.01%

Chorus Ltd_SSH-Movement

Details of transactions and events giving rise to relevant event

Details of the transactions or other events requiring disclosure under the instructions to this form:

There have been various purchases and sales of Common Shares and ADRs over multiple dates. A purchase of 2,000,000 Common Shares on 19 December 2012 caused us as an aggregated group to increase by more than 1% since our previous filing.

Details of relevant interests in substantial holding after relevant event

Details for: The Bank of New York Mellon Corporation

Nature of relevant interest(s): Beneficial owner of securities

For that relevant interest,—

• (a) number held in class: 23,266,942

• (b) percentage held in class: 6.04%

• (c) current registered holder(s) of securities: Unknown

• (d) registered holder(s) of securities once transfers registered: N/A

Additional information

Nature of connection between substantial security holders:

The Bank of New York Mellon Corporation is the ultimate parent of the above named subsidiaries, and is submitting this disclosure on an aggregated basis.

Address(es) of substantial security holder(s):

One Wall Street, New York, New York 10286 USA

Name of any other person believed to have given, or believed to be required to give, a disclosure under the Act in relation to the securities to which this disclosure relates: N/A

Declaration

I, Nicholas R. Darrow declare that, to the best of my knowledge and belief, the information contained in this disclosure is correct and that I am duly authorised to make this disclosure by all persons for whom it is made.

Chorus Ltd_SSH-Movement