Investor Presentaiton

INFRASTRUCTURE FOR THE FUTURE TRANSGRID DEBT AND HEDGING • Next debt maturity is $1,550m in June 2021 ($1,185m drawn at 30 June 2020) Drawn Debt Maturity Profile at 30 June 2020 ($m 100%) 1,185 Jun-21 ■Capital Markets Debt ■Bank Debt Interest Rate Swaps Notional Principal Amount Average Contracted Fixed Interest Rate < 1 year $303m 2.6% 1-2 years $303m 2.8% 2-5 years $2,729m 2.6% 5+ years $1,663m 2.3% Total $4,996m 2.6% 900 635 635 490 491 336 336 269 256 152 169 Jun-22 Jun-23 Jun-24 Nov-24 Jun-25 Sep-26 Oct-27 Mar-29 Oct-29 Sep-31 Oct-32 75 Sep-33 25 Oct-34 Note: Information above relates to TransGrid Obligor Group and TransGrid Services Spark Infrastructure | Investor Presentation 1 August 2020 56

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