Exhibit 99 Tennant Company Reports First Quarter 2024 Results Delivers Net Sales and Strong Net Income Growth Expands Adjusted EBITDA Margin MINNEAPOLIS, MN (May 3, 2024)—Tennant Company ("Tennant" or the "Company") (NYSE: TNC) today reported its financial results for the quarter ended March 31, 2024. (In millions, except per share data) Three Months Ended March 31, 2024 2023 Increase Net sales $311.0$ 305.8 1.7 % Net income $28.4$ 24.3 16.9 % Diluted EPS $1.49$ 1.30 14.6 % Adjusted diluted EPS $ 1.81 ...