Avantor Results Presentation Deck

Q2 2023 highlights MANAGING THROUGH CHALLENGING ENVIRONMENT Q2 results reflect challenging market trends, especially in biopharma Sustained focus on productivity and cost control to mitigate demand softness Strong 1H free cash flow conversion and improving working capital ACTIONS TO DRIVE GROWTH AND IMPROVE PERFORMANCE Accelerating high-growth initiatives, including new product introductions and digital transformation ● LOOKING AHEAD Revising FY23 guidance to reflect continuation of Q2 market conditions All free cash flow directed to deleveraging; targeting adjusted net leverage <3.0X New CFO appointed from life sciences sector, bringing track record of transformation Confident in long-term outlook driven by solid end market fundamentals, proven platform and targeted growth strategy . Intensified focus on productivity and operational excellence Progressing ESG strategy, including responsible supplier program and SBTi submission ● Navantor™ F 3

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