Ecolab Delivers Very Strong First Quarter Performance; Reported Diluted EPS $1.43; Adjusted Diluted Eps $1.34, +52%; Increased 2024 Adjusted Diluted EPS Outlook: $6.40 - $6.70, +23% - 29%

ST. PAUL, Minn.--(BUSINESS WIRE)--Ecolab Inc. (NYSE: ECL): FIRST QUARTER HIGHLIGHTS Reported sales $3.8 billion, +5% versus last year. Organic sales +5%, led by strong growth in the Institutional & Specialty and Pest Elimination segments, and modest Industrial segment growth. Reported operating income margin 13.8%. Organic operating income margin 14.7%, +400 bps as lower delivered product costs, value-based pricing, and volume growth more than offset growth-oriented investments in the busin