Oatly Results Presentation Deck

OATLY DRIVES GROWTH FOR THE OAT MARKET GAINING MARKET SHARE IN KEY MARKETS Total plant-based market share (¹) 50% 40% 30% 20% 10% 0% UNITED KINGDOM YOY GROWTH DA(2) OATLY 21% 34% Oct '18 Sep ¹21 of plant-based milk growth 50% contributed by Oatly (3) OAT 45% OATLY 26% 70% 60% 50% 40% 30% 20% 10% 0% GERMANY YOY GROWTH DA(2) OATLY 31% 46% Oct '18 Sep '21 of plant-based milk growth 27% contributed by Oatly (3) OAT 57% OATLY 20% 30% 25% 20% 15% 10% 5% 0% UNITED STATES YOY GROWTH DA(2) OATLY 8% 60% Oct '18 Sep ¹21 Source: Nielsen, IRI, Plant-based market survey commissioned by Oatly, January 2021. Notes: U.K.IRI data as of October 9, 2021, Germany Nielsen data as week 39 2021 and U.S. Nielsen data as of October 9, 2021. 1. Market shares by retail sales value in the total plant-based milk category, represent rolling four weeks period. 2. Dairy Alternatives. 3. Calculated as the sales value increase for Oatly divided by the sales value increase for the total plant-based milk category for the last 52 weeks per the previously mentioned periods vs. parallel period in 2020 in the absolute dollar amount. THE ORIGINAL ●ATLY! OAT 19% OATLY 5% of plant-based milk growth 22% contributed by Oatly (3) Q3'21 EARNINGS PRESENTATION 9

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