Avantor Investor Presentation Deck

Q1 core organic revenue growth by end market & product Biopharma Healthcare Education & government BY END MARKET Advanced tech & applied materials Navantor™ % OF TOTAL SALES ~55% ~10% ~10% ~25% Q1'23 -LSD -MSD +MSD -LSD BY PRODUCT Proprietary materials & consumables Third-party materials & consumables Services & specialty procurement Equipment & instrumentation Note: Organic growth is reported revenue growth excluding the impacts from changes in foreign currency exchange rates. Core organic growth is organic growth net of COVID-19 impact. % OF TOTAL SALES ~40% ~40% ~10% ~10% Q1'23 ±0% -MSD +MSD -LSD 7

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