Avantor Results Presentation Deck

Q3 core organic revenue change by end market & product Biopharma Healthcare Education & government BY END MARKET Advanced tech & applied materials Navantor™ % OF TOTAL SALES ~55% ~10% ~10% ~25% Q3'23 -HSD -HSD +LSD -LDD BY PRODUCT Proprietary materials & consumables 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. Q3'23 figures on this page reflect the core organic growth by end market and product. 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% Q3'23 -LDD -HSD +MSD -HSD 7

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