Stora Enso Oyj: Notification of Change in Holdings according to Chapter 9, Section 10 of the Finnish Securities Markets Act (13 August 2025)

STORA ENSO OYJ STOCK EXCHANGE RELEASE 14 August 2025 at 14:25 EEST

Stora Enso Oyj received a notification pursuant to chapter 9, section 5 of the
Securities Market Act from BlackRock, Inc on 14 August 2025.

On 13 August 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     |4.39% shares  |0.88% shares                 |5.28% shares   |
|previous        |              |                             |               |
|notification    |Below 5%      |Below 5% voting rights       |Below 5% voting|
|(if applicable) |voting rights |                             |rights         |
+----------------+--------------+-----------------------------+---------------+

+------------+--------+---------+-----------------+----------------------+
|A: Shares                                                               |
|and voting                                                              |
|rights                                                                  |
+------------+--------+---------+-----------------+----------------------+
|Class/type  |Number            |% of shares and voting rights           |
|of          |of                |                                        |
|shares      |shares            |                                        |
|            |and               |                                        |
|ISIN code   |voting            |                                        |
|(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 rights|
|            |        |Below 5% |                 |                      |
|            |        |voting   |                 |                      |
|            |        |rights   |                 |                      |
+------------+--------+---------+-----------------+----------------------+
|SUBTOTAL A  |Below 5%          |Below 5% shares                         |
|            |shares            |                                        |
|            |                  |Below 5% voting rights                  |
|            |Below 5%          |                                        |
|            |voting            |                                        |
|            |rights            |                                        |
+------------+--------+---------+-----------------+----------------------+

B: Financial
Instruments
according
to SMA 9:6a
Type of         Expiration  Exercise/   Physical    Number    % of shares
financial       date        Conversion  or          of        and voting
instrument                  Period      cash        shares    rights
                                        settlement  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
CFD             N/A         N/A         Cash        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 175,552,207 A shares and 613,067,780 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 236,858,985.
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:
Jutta Mikkola
SVP Investor Relations
tel. +358 50 544 6061