Investor Presentation Q1 2022

Avantium targets large and diverse PEF and MEG markets PEF addressable market - 100mt+ Total expected value $200bn+ MEG addressable market - 35mt+ Total value today $23bn+ Mainstream applications Value applications Packaging and bottles ($160bn) Tomorrow Textiles High-value applications ($40bn) $23bn+ today $3bn Specialty Films ($3bn) $40bn Others $160bn Engineering plastics Automotive Sources: Chapter 12 Avantium IPO prospectus (March 2017); MEG values calculated based on market data of Wood Mackenzie (2021), Nexant (2020) and Tecnon Orbichem (2022) Solvent PET PEF Chemical Intermediates Anti-freeze and Coolants Avantium | Investor Presentation Q1 2022 19

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