MERCURY NZ LIMITED — Capital/Financing Update 2020

Sep 4, 2020

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QUOTATION NOTICE: NZX DEBT MARKET MERCURY NZ LIMITED GREEN BONDS (“MCY030”)

Company: Mercury NZ Limited (“MCY”) Security Code: MCY030 ISIN: NZMCYDG003C8 Details of Issue: NZ$200 million of unsecured, unsubordinated fixed rate Green Bonds. Opening Date: Monday, 31 August 2020 Closing Date: Friday, 4 September 2020 Maturity Date: Tuesday, 14 September 2027 Interest Rate: 1.56% per annum Interest Payment Dates: 14 March and 14 September of each year up to (and including) the Maturity Date. Date of First Interest Payment: 14 March 2021. As this is a Sunday, interest will be paid on Monday, 15 March 2021. First Interest Paid To: Holder on Record Date Record Date: 10 calendar days prior to the relevant payment date or, if that date is not a Business Day, the immediately preceding Business Day Minimum Application Amount: $5,000 and in multiples of $1,000 thereafter Minimum Holding: $5,000 Minimum Transferable Amount: $1,000 Face Value: $1.00 per Green Bond Supervisor: The New Zealand Guardian Trust Company Limited Joint Lead Managers: ANZ Bank New Zealand Limited as Arranger and Green Bond Co-ordinator. ANZ Bank New Zealand Limited, Bank of New Zealand, Craigs Investment Partners Limited and Forsyth Barr Limited as Joint Lead Managers Trust Deed Dated: Master Trust Deed dated 4 April 2003 and Supplemental Trust Deed dated 21 August 2020 Issue Date: Monday, 14 September 2020

NZX Limited, Level 1, NZX Centre, 11 Cable Street, PO Box 2959, Wellington 6140, New Zealand Tel +64 4 472 7599, www.nzx.com

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Registrar:

Settlement Status:

Expected Commencement of Trading on the NZX Debt Market:

Computershare Investor Services Limited (RMLT)

NZCDC Settlement System Tuesday, 15 September 2020

Mark Peterson Chief Executive Officer NZX Limited

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4 September 2020

NZX Limited, Level 1, NZX Centre, 11 Cable Street, PO Box 2959, Wellington 6140, New Zealand Tel +64 4 472 7599, www.nzx.com