Mercury Green Bond offer – interest rate set

25/03/2026 13:14 NZDT, OFFER

Mercury NZ Limited (Mercury) today announced that, following a bookbuild for its offer of 7 year unsecured, unsubordinated, fixed rate green bonds (Green Bonds), $250 million of Green Bonds have been allocated to participants (or their clients) involved in the bookbuild process. There was no public pool for the offer.

The interest rate for the Green Bonds has been set at 5.17% per annum. This reflects an issue margin of 0.95% per annum over the underlying swap rate.

The Green Bonds will be issued on 1 April 2026 and will mature on 1 April 2033.

The Green Bonds are expected to be quoted on the NZX Debt Market under the ticker code MCY080 on 2 April 2026.

A copy of the final terms sheet (updated for the interest rate set out above) will be provided to NZX.

For further details investors can contact one of the Joint Lead Managers or their usual financial advice provider.

Arranger and Joint Lead Manager

Westpac - 0800 772 142

Joint Lead Managers

BNZ - 09 924 9602

Craigs Investment Partners - 0800 272 442

Forsyth Barr - 0800 367 227

ENDS

Howard Thomas

General Counsel and Company Secretary

Mercury NZ Limited

For investor relations queries, please contact:

Paul Ruediger

Head of Business Performance & Investor Relations

027 517 3470

investor@mercury.co.nz

For media inquiries, please contact:

Catherine Morab

Reputation and Social Impact Lead

09 282 1158

mercurycommunications@mercury.co.nz