Q2'21 Earnings Presentation

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 (1) UNITED STATES GERMANY OAT 56% YOY GROWTH 20% DA(2) OATLY 10% 74% UNITED KINGDOM OAT 60% 40% YOY GROWTH DA(2) OATLY 20% 52% 43% YOY GROWTH 50% DA (2) OATLY 36% 76% 30% OATLY 40% 24% 30% 20% 10% 0% Jan '18 51% of plant-based milk growth contributed by Oatly (3) 20% 10% 0% July '21 Jan '18 33% of plant-based milk growth contributed by Oatly (3) OATLY 18% 10% 0% July '21 Source: Nielsen, IRI, Plant-based market survey commissioned by Oatly, January 2021. Notes: U.K. IRI data as of July 17, 2021, Germany Nielsen data as of week 26 2021, U.S. Nielsen data as of July 17, 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 first 6 months of 2021 vs. parallel period in 2020 in the absolute dollar amount. THE ORIGINAL OATLY! Jan '18 19% of plant-based milk growth contributed by Oatly (3) July '21 OAT 18% OATLY 5% Q2'21 EARNINGS PRESENTATION 11

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