Investor Presentation June 2021 slide image

Investor Presentation June 2021

Mississippi regulatory summary Average-rated regulatory jurisdiction by RRA Rate Stabilization Adjustment (RSA) - RSA provides for annual rate performance reviews rather than periodic rate cases Formulaic approach to ROE setting with equity capitalization currently set at 50% Rate adjustment when ROE is outside a 1% band of allowed ROE (10.03%) - - 50% of the amount over the allowed return going to a rate reduction, or 75% of the deficiency toward a rate increase 0 Fixed rate structure and weather normalization mechanism effective with 2018-19 heating season Supplemental Growth (SG) Rider - Program through Oct. 2021 for up to $5M in investment Qualified industrial development projects earn a 10-year supplemental return at 12.0% ROE Mississippi Public Service Commission - commissioners elected to 4-year term Dane Maxwell, Chair (R) - 2023 (Southern District) Brandon Presley (D) - 2023 (Northern District) Brent Bailey (R) - 2023 (Central District) 31 Spire | Investor presentation June 2021
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