Avantor Investor Day Presentation Deck

1. RESEARCH & DEVELOPMENT Case study: Global R&D engagement with a top biopharma customer avantor™ 1. Estimated based on FY20 data SCOPE OF R&D SUPPORT¹ >55K SKUS purchased >100 Global customer locations >230K eCommerce order lines >390 On-site services associates RESULTS ~15 years Contracted status as preferred provider Best in class Customer feedback on COVID-19 emergency response Double Digit 5-year average growth rate 25

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