Press Release May 6, 2024 Otter Tail Corporation Announces First Quarter Earnings and Increases 2024 Annual Earnings Guidance FERGUS FALLS, Minnesota - Otter Tail Corporation (Nasdaq: OTTR) today announced financial results for the quarter ended March 31, 2024. SUMMARY • Diluted earnings per share increased 19% to $1.77 per share compared to the first quarter of 2023. • Midpoint of 2024 earnings guidance increased 21% to $6.38 per share. • Return on equity of 22% over the trailing twelve months. CEO OVERVIE ...