Investor Presentation December 2021

Spire Missouri rate order - next steps Assisting Staff to expedite audit of Spire MO's compliance with their revised interpretation of acceptable overhead capitalization methods under USOA - Goal is to have resolution by the end of Q1 calendar 2022 Will seek clarification of any overheads that are not capitalized based on the audit Staff progress report due mid-January 2022 On Nov. 19, Spire MO filed for reconsideration on: - Capital structure - ROE Capitalization and recovery of overheads Weather Normalization Adjustment - Cash working capital • We are evaluating our regulatory strategies, including filing a new rate case 7 Spire | Investor presentation December 2021 -

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