Investor Presentaiton

INFRASTRUCTURE FOR THE FUTURE SUSTAINABLE YIELD AND GROWTH FOR THE FUTURE Highly defensive businesses investing in Australia's energy transition • Businesses have adapted well to COVID-19 conditions with minimal impact, and are supporting consumers through network tariff relief Distribution and transmission revenues up 3.8%, in accordance with regulatory price-paths First renewables project delivered on time and under budget; fully operational Underlying Look-through Net Operating Cash Flow before tax up 13.0%; Robust and highly defensive through COVID-19 Growth capex up 10.5% on prior period Growing substantial pipeline of regulated and contracted capex opportunities across all Businesses; supported by AEMO's 2020 ISP All remaining historical taxes paid to remove downside risk and minimise potential ATO interest costs 1H20 interim distribution of 7.0cps to be paid in September; with DRP to operate at 2.0% discount Achieved an average payout ratio of ~73% of look-through net operating cash flows over the last 4½ years; equivalent standalone payout ratio ~95% (after incorporating all tax payments) Delivering Yield and Growth in difficult conditions, and investing in the transition to a lower-carbon environment for future generations Spark Infrastructure I Investor Presentation | August 2020 4

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