Oatly Results Presentation Deck

OATLY HELPS DRIVE GROWTH FOR THE OAT MARKET GAINING MARKET SHARE IN KEY MARKETS Total plant-based market share (¹) 50% 40% 30% 20% 10% 0% YOY GROWTH DA(2) OATLY 5% 10% Mar 19 UNITED KINGDOM 46% Mar 22 of plant-based milk growth contributed by Oatly YoY (3) OAT 47% OATLY 25% 75% 50% 25% 0% GERMANY YOY GROWTH DA(2) OATLY 17% 15% Mar '19 Mar 22 of plant-based milk growth 19% contributed by Oatly YoY (3) Source: Nielsen IQ, IRI. Notes: U.K. IRI data as of March 26, 2022, Germany Nielsen data as week 13 2022 and U.S. Nielsen data as of March 26, 2022. 1. Market shares by retail sales value in the total plant-based milk category, represent rolling four weeks period. 2. Growth rates last 52 weeks vs parallel periods in 2021 Dairy Alternatives. 3. Calculated as the sales value increase for Oatly divided by the sales value increase for the total plant-based milk category THE ORIGINAL for the last 52 weeks per the previously mentioned periods vs. parallel period in 2021 in the absolute dollar amount. ●ATLY! OAT 64% OATLY 21% 25% 20% 15% 10% 5% 0% UNITED STATES YOY GROWTH DA(2) OATLY 5% 42% Mar '19 Mar 22 OAT 21% OATLY 5% of plant-based milk growth 32% contributed by Oatly YoY (3) Q1'22 EARNINGS PRESENTATION 8

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