Avantor Results Presentation Deck

Q2 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% Q2'23 -HSD +MSD +MSD -HSD Proprietary materials & consumables BY PRODUCT Third-party materials & consumables Services & specialty procurement Equipment & instrumentation Note: LSD 1-3% / MSD 4-6% / HSD 7-9% / LDD 10-12%. "% of total sales" based on FY 2022 reported revenue. 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% Q2'23 -LDD -MSD +MSD -MSD 8

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