SSH: APT: SSH Notice (Blair Cooper)

24 May 2010 2:51 pm

APT 24/05/2010 SSH

REL: 1450 HRS AMP NZ Office Trust

SSH: APT: SSH Notice (Blair Cooper)

Disclosure of beginning to have substantial holding Section 22, Securities Markets Act 1988

To: NZX Limited And: Amp NZ Office Trust

Date this disclosure made: 24 May 2010 Substantial security holder(s) giving disclosure Name(s): Blair Cooper

Contact details: Kym Nijsse +64 4 918 7067 kym.nijsse@acc.co.nz Date on which substantial security holder(s) began to have substantial holding: 21 May 2010

Summary of substantial holding to which disclosure relates Class of listed voting securities: Ordinary Shares Summary for: Blair Cooper

For this disclosure,-- (a) Total number held in class: 74,562,232 (b) Total in class: 997,718,478 (c) Total percentage held in class: 7.473%

Details of relevant interests in substantial holding after relevant event Details for: Blair Cooper Nature of relevant interest(s): Beneficial owner of securities under s 5 (1) (b) of the Securities Markets Act No relevant agreement document needs to be attached under regulation 11. For that relevant interest,-- (a) Number held in class: 35,000 (b) Percentage held in class: 0.004% (c) Current registered holder(s) of securities: 35,000 shares held by Blair Cooper either directly or indirectly (d) Registered holder(s) of securities once transfers registered: n/a

Details for: Accident Compensation Corporation ("ACC") Nature of relevant interest(s): Qualified powers to exercise control of rights to vote and of acquisition or disposal of some or all of the securities, of which the ACC is the beneficial owner under s 5(1)(c)and 5 (1)(d) of the Securities Markets Act. Further to regulation 11(2)(b), the material terms of this arrangement are that powers are subject to ACC investment policies and the decisions of the ACC Investment Committee. For that relevant interest, (a) Number held in class: 74,527,232 (b) Percentage held in class: 7.470% (c) Current registered holder(s) of securities: 74,527,232 shares held by ACC via New Zealand Central Securities Depository Limited (NZCSD) (d) Registered holder(s) of securities once transfers registered: n/a Details of transactions and events giving rise to person beginning to have substantial holding Details of the transactions or other events requiring disclosure under the instructions to this form: Aggregation of interests in securities held by Blair Cooper and ACC

Additional information Blair Cooper is an employee and portfolio managers for ACC. Under current ACC investment policies, they have the discretion to exercise control over some or all the rights to vote and acquisition or disposal of some or all of the securities of which ACC is the beneficial owner Address(es) of substantial security holder(s): ACC : 81-83 Molesworth Street, Wellington 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, Blair Cooper, 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. End CA:00195249 For:APT Type:SSH Time:2010-05-24:14:51:01

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