Stora Enso Oyj

Major Shareholding Notification • Apr 10, 2025

Disclosure 457610

Stora Enso Oyj - Major shareholder announcements

Stora Enso Oyj: Notification of Change in Holdings according to Chapter 9, Section 10 of the Finnish Securities Markets Act (9 April 2025)

STORA ENSO OYJ STOCK EXCHANGE RELEASE 10 April 2025 at 15:30 EEST Stora Enso Oyj received a notification pursuant to chapter 9, section 5 of the Securities Market Act from BlackRock, Inc on 10 April 2025. On 9 April 2025, BlackRock's holding, including holding through financial instruments, in Stora Enso's shares decreased below the 5 percent threshold. +----------------+--------------+-----------------------------+---------------+ | |% of shares |% of shares and voting rights|Total of both | | |and voting |through financial instruments|in % (7.A + | | |rights |(total of 7.B) |7.B) | | |(total of 7.A)| | | +----------------+--------------+-----------------------------+---------------+ |Resulting |Below 5% |Below 5% shares |Below 5% shares| |situation on the|shares | | | |date on | |Below 5% voting rights |Below 5% voting| |which threshold |Below 5% | |rights | |was crossed or |voting rights | | | |reached | | | | +----------------+--------------+-----------------------------+---------------+ |Position of |4.74% shares |0.25% shares |5.00% shares | |previous | | | | |notification |Below 5% |Below 5% voting rights |Below 5% voting| |(if applicable) |voting rights | |rights | +----------------+--------------+-----------------------------+---------------+ A: Shares and voting rights Class/type of Number of % of shares shares shares and and voting voting rights ISIN code (if rights possible) Direct Indirect Direct Indirect (SMA 9:5) (SMA 9:6 (SMA 9:5) (SMA 9:6 and 9:7) and 9:7) FI0009005961 Below 5% Below 5% shares shares Below 5% voting Below 5% rights voting rights SUBTOTAL A Below 5% Below 5% shares shares Below 5% Below 5% voting voting rights rights B: Financial Instruments according to SMA 9:6a Type of Expiration Exercise/ Physical or Number % of shares financial date Conversion cash of and voting instrument Period settlement shares rights and voting rights American N/A N/A Physical Below 5% Below 5% Depositary shares shares Receipt (US86210M1062) Below 5% Below 5% voting voting rights rights Securites lent N/A N/A Physical Below 5% Below 5% shares shares Below 5% Below 5% voting voting rights rights SUBTOTAL B Below 5% Below 5% shares shares Below 5% Below 5% voting voting rights rights Stora Enso has two series of shares. Each A share and every ten R shares carry one vote. Stora Enso has 175,553,41 A shares and 613,066,576 R shares in issue. The Company does not hold its own shares. The total number of Stora Enso shares is 788,619,987 and the total number votes at least 236,860,068. Stora Enso The forest is at the heart of Stora Enso, and we believe that everything made from fossil-based materials today can be made from a tree tomorrow. We are the leading provider of renewable products in packaging, biomaterials, and wooden construction, and one of the largest private forest owners in the world. In 2024, Stora Enso had approximately 19,000 employees, and the Group sales were EUR 9 billion. Stora Enso's shares are listed on Nasdaq Helsinki Oy (STEAV, STERV) and Nasdaq Stockholm AB (STE A, STE R). In addition, the shares are traded in the USA OTC Markets (OTCQX) as ADRs and ordinary shares (SEOAY, SEOFF, SEOJF). storaenso.com (https://www.storaenso.com/en/investors/governance/annual -general-meeting) STORA ENSO OYJ Investor enquiries: Anna-Lena Åström SVP Investor Relations tel. +46 70 210 7691