Quotation Notice - Mercury NZ Limited Bonds ("MCY080")

25/03/2026 17:10 NZDT, OFFER3

QUOTATION NOTICE: NZX DEBT MARKET

MERCURY NZ LIMITED (“MCY080”) BONDS

Company: Mercury NZ Limited (NS) (“MCY”)

Security Code: MCY080

ISIN: NZMCYDG008C7

Details of Issue: NZ$250,000,000 of unsecured, unsubordinated, fixed rate green bonds

Offer Opening Date: Monday, 23 March 2026

Offer Closing Date: 11:00am, Wednesday, 25 March 2026

Maturity Date: Friday, 1 April 2033

Interest Rate: 5.17% per annum

Interest Payment Dates: 1 April and 1 October of each year up to and including the Maturity Date

Date of First Interest Payment: Thursday, 1 October 2026

First Interest Paid To: Holder on Record Date

Record Date: 10 calendar days before the relevant Interest Payment Date, or if that date is not a business day, the immediately preceding business day

Minimum Application Amount: NZ$5,000 and multiples of $1,000 thereafter

Minimum Holding: NZ$5,000

Minimum Transferable Amount: NZ$1,000

Face Value: NZ$1.00 per Bond

Supervisor: The New Zealand Guardian Trust Company Limited

Joint Lead Managers: Westpac Banking Corporation (ABN 33 007 457 141) (acting through its New Zealand Branch) as Arranger and Joint Lead Manager Bank of New Zealand, Craigs Investment Partners Limited and Forsyth Barr Limited as Joint Lead Managers

Green Bond Co-ordinator: Westpac New Zealand Limited

Trust Deed Dated: Master Trust Deed dated 4 April 2003 (as amended from time to time) and Supplemental Trust Deed dated 23 March 2026

Registrar: Computershare Investor Services Limited

Settlement Status: NZCDC Settlement System

Issue Date: Wednesday, 1 April 2026

Expected Commencement of Trading on the NZX Debt Market: Thursday, 2 April 2026

Mark Peterson

Chief Executive Officer

NZX Limited

25 March 2026