EXCHANGE NOTICE, DECEMBER 15, 2020 SHARES (Record Id 155369) STORA ENSO OYJ: SHARE CONVERSION A total of 8 A-shares converted into R-shares will be traded together with the old R-shares of Stora Enso Oyj as of December 16, 2020. Identifiers of Stora Enso Oyj's share: Trading code:STEAV ISIN code: FI0009005953 Orderbook id: 24359 Number of shares: 176,254,415 Trading code: STERV ISIN code: FI0009005961 Orderbook id: 24360 Number of shares: 612,365,572 Nasdaq Helsinki Oy, Surveillance, survo@nasdaq.com, +358 9 6166 7260