Oatly IPO Presentation Deck

OATLY DRIVES GROWTH FOR THE OAT MARKET As Oatly goes, so goes the oat category. We accelerate overall oat and nondairy category growth in our active markets. Total plant-based market share!!! 40% 30% 20% 10% 0% UNITED KINGDOM Feb-18 2020 YOY GROWTH DA(3) OATLY 31% 99% 49% Jan - 19 Jan - 20 Dec-20 of plant-based milk growth contributed by Oatly (3) OAT 42% OATLY 27% 60% 45% 30% 15% 0% 2020 YOY GROWTH Jan - 18 GERMANY DA(3) OATLY 44% 199% Jan - 19 Jan-20 43% of plant-based milk growth by Oatly (3) Source: Nielsen, IRI, Plant-based market survey commissioned by Oatly, January 2021. Notes: UK, IRI data as of January 2, 2021, Germany Nielsen data as of December 26, 2020 and U.S. Nielsen data as of December 26, 2020. 1. Market shares 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 full year 2020 in the absolute dollar amount. THE ORIGINAL OATLY! OAT 60% OATLY 23% Dec-20 20% 15% 10% 5% 0% UNITED STATES Jan - 18 2020 YOY GROWTH DA(3) OATLY 20% 182% Jan - 19 Jan - 20 Dec-20 13% of plant-based milk growth contributed by Oatly OATLY OAT 14% 13

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