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

STORA ENSO OYJ STOCK EXCHANGE RELEASE 16 June 2025 at 17:00 EEST

Stora Enso Oyj received a notification pursuant to chapter 9, section 5 of the
Securities Market Act from BlackRock, Inc on 16 June 2025.

On 13 June 2025, BlackRock's holding, including holding through financial
instruments, in Stora Enso's shares increased above 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       |4.30% shares  |0.72% shares                 |5.03% shares   |
|situation on the|              |                             |               |
|date on         |Below 5%      |Below 5% voting rights       |Below 5% voting|
|which threshold |voting rights |                             |rights         |
|was crossed or  |              |                             |               |
|reached         |              |                             |               |
+----------------+--------------+-----------------------------+---------------+
|Position of     |Below 5%      |Below 5% shares              |Below 5% shares|
|previous        |shares        |                             |               |
|notification    |              |Below 5% voting rights       |Below 5% voting|
|(if applicable) |Below 5%      |                             |rights         |
|                |voting 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                33,931,780                 4.30% shares
                            shares
                                                       Below 5% voting
                            Below 5%                   rights
                            voting
                            rights
SUBTOTAL A      33,931,780              4.30% shares
                shares
                                        Below 5%
                Below 5%                voting rights
                voting
                rights

B: Financial
Instruments
according
to SMA 9:6a
Type of         Expiration  Exercise/   Physical or  Number of  % of shares
financial       date        Conversion  cash         shares     and voting
instrument                  Period      settlement   and        rights
                                                     voting
                                                     rights
American        N/A         N/A         Physical     405,720    0.05% shares
Depositary                                           shares
Receipt                                                         Below 5%
(US86210M1062)                                       Below 5%   voting rights
                                                     voting
                                                     rights
Securites lent  N/A         N/A         Physical     5,336,400  0.67% shares
                                                     shares
                                                                Below 5%
                                                     Below 5%   voting rights
                                                     voting
                                                     rights
                                        SUBTOTAL B   5,742,120  0.72% shares
                                                     shares
                                                                Below 5%
                                                     Below 5%   voting rights
                                                     voting
                                                     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 236,859,985.
Investor enquiries:
Jutta Mikkola
SVP Investor Relations
tel. +358 50544 6061
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