MERCURY NZ LIMITED — Capital/Financing Update 2021

Mar 14, 2021

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STOCK EXCHANGE LISTINGS: NZX (MCY) / ASX (MCY)

NEWS RELEASE

Mercury launches green bond offer

15 March 2021

Mercury NZ Limited (Mercury) confirmed today that it is offering up to $200 million (with the ability to accept up to an additional $50 million in oversubscriptions at Mercury’s discretion) of 5.5 year unsecured, unsubordinated fixed rate green bonds (Green Bonds).

The offer opens today and is expected to close on 19 March 2021, with the Green Bonds expected to be issued on 29 March 2021.

The indicative issue margin range for the Green Bonds is 0.85% to 1.00% per annum over the underlying swap rate. The interest rate for the Green Bonds will be set following a bookbuild process, which is expected to be completed on 19 March 2021, and announced via NZX shortly thereafter.

The Green Bonds have been rated BBB+ by S&P Global Ratings.

There is no public pool for the offer, with all of the Green Bonds being reserved for clients of the Joint Lead Managers, NZX participants and other approved financial intermediaries.

Full details of the offer are contained in the indicative terms sheet. The indicative terms sheet is attached, is available through www.mercury.co.nz/mcy040 or by contacting a Joint Lead Manager or your usual financial adviser.

Copies of the indicative terms sheet and investor presentation have also been provided to NZX with this announcement.

Arranger, Green Bond Co-ordinator for this offer and Joint Lead Manager

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0800 772 142

Joint Lead Managers

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0800 269 476

0800 226 263

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PHONE:[+ 64 9 308 8200 ] FAX: + 64 9 308 8209

` The Mercury Building, 33 Broadway, Newmarket 1023 PO Box 90399, Auckland 1142 New Zealand

mercury.co.nz

ENDS

Howard Thomas General Counsel and Company Secretary Mercury NZ Limited For investor relations queries, please contact: For media queries, please contact: Tim Thompson Craig Dowling Head of Treasury and Investor Relations Head of Communications 0275 173 470 0272 105 337

ABOUT MERCURY NZ LIMITED

Mercury’s mission is energy freedom. Our purpose is to inspire New Zealanders to enjoy energy in more wonderful ways and our goal is to be New Zealand’s leading energy brand. We focus on our customers, our people, our partners and our country; maintain a long-term view of sustainability; and promote wonderful choices. Mercury is energy made wonderful. Visit us at: www.mercury.co.nz

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