Avantor Results Presentation Deck

10 M&A detail (Dollars in millions) Masterflex Ritter RIM Bio Net sales Masterflex Acq. Date 01 Nov 2021 12 June 2021 01 June 2021 Ritter RIM Bio Total M&A Contribution Navantor™ M&A (inorganic) Organic 1Q22 Jan Feb M&A impact (inorganic) $68.5 $46.7 $2.1 $117.3 Mar 1Q22 10Q filing³ $68.5 $46.7 $115.2 2Q22 3Q22 Apr May Jun Jul Aug Sep Oct Earnings pres.c $69 $47 $2 $118 M&A impact (inorganic) $64.0 $26.2 $0.6 $90.8 2Q22 В 10Q filing B $63.7 $33.4 $97.1 Earnings pres.c $67 $33 $2 $102 4Q22 Nov Dec $46.5 3Q22 M&A impact (inorganic) 10Q filing B $46.5 $46.5 $39.6 $86.1 Earnings с pres. $48 $40 $3 $91 M&A impact (inorganic) $193.1 $72.9 $2.7 $268.7 M&A impact (inorganic) $14.1 $14.1 FY2022 10K filing B $227.3 $151.1 $378.4 4Q22 4Q implied (10K filing) $48.6 $31.4 $80.0 Earnings pres. $232 $151 $10 $393 Earnings pres. $49 $31 $3 $83 Note: Masterflex organic as of: November 1, 2022, Ritter organic as of: June 10, 2022, RIM Bio organic as of: June 1, 2022 A. M&A impact (inorganic) includes the net sales in the relevant period for acquired entities that have been owned by Avantor for less than 1 year. Filings includes the net sales of acquired entities, with no distinction between M&A impact (inorganic) and organic. B. C. Earnings presentation includes the net sales of acquired entities including legacy sales through Avantor channel, with no distinction between M&A impact (inorganic) and organic. 13

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