Announcement of public offering of shares of Nordic Fibreboard AS

Nordic  Fibreboard  AS  (registry  code:  11421437, address: Rääma tn 31, Pärnu,
80044 Estonia;  the Company) hereby announces  the additional public offering of
its   shares.  Only  existing  shareholders  of  the  Company  are  entitled  to
participate in the offering, who will be granted pre-emptive subscription rights
in  proportion to the number of shares held by them. The offering is based on an
information  document  prepared  by  the  Company,  which  is  available  on the
Company's website: https://www.nordicfibreboard.com/investor/stock-information/.
The  information document has been prepared in accordance with Article 1(4)(db)
of  Regulation (EU) 2017/1129 of the European Parliament and of the Council (the
"Prospectus  Regulation"), including the information set  out in Annex IX to the
Prospectus  Regulation. Accordingly, no prospectus  for the public offering will
be  prepared or published. The  shares are publicly offered  only in Estonia and
not in any other jurisdiction.

Overview of important terms and conditions of the Offering:

Up  to  4,000,000 shares  are  offered  publicly.  The  shares will be allocated
according  to their subscription orders, but not more than the respective person
has  pre-emptive subscription rights for the  shares. In the part exceeding this
amount,  the shares will be allocated among the subscribers in proportion to the
pre-emptive rights belonging to the subscribers (but not more than the number of
shares  subscribed for by the respective person). If it appears that more shares
have  been subscribed for than offered,  the subscribed shares will be allocated
among  the subscribers in proportion to  the pre-emptive rights belonging to the
subscribers.  If the  subscribed shares  do not  divide between  the subscribers
exactly,  the  Supervisory  Board  of  the  Company  will  decide  on  the final
allocation  of the subscribed shares among the subscribers. The Company reserves
the  right  to  give  preference  to  the  Company's  employees,  members of the
management bodies and their holding companies when deciding on the allocation of
shares that have not divided exactly. If not all new shares have been subscribed
for  by the end of the offering period,  the Management Board of the Company has
the  right to extend the offering period or cancel the shares that have not been
subscribed for during the offering period.

Only  existing shareholders  of the  Company are  entitled to participate in the
offering,  who will be granted pre-emptive  subscription rights in proportion to
the  number of shares held by them.  The list of persons (shareholders) entitled
to  exercise  the  pre-emptive  right  will  be  determined as at the end of the
business  day  of  the  Nasdaq  CSD  settlement system on 15 September 2025. The
subscription  orders of persons not entitled to participate in the offering will
be  cancelled and will not be taken into account when deciding on the allocation
of the offering.

The  offering period, during which it is  possible to subscribe for shares, will
commence  on 12 September 2025 at  10:00 and end on  26 September 2025 at 16:00
(Estonian time).

The  offer price is EUR  0.50, of which EUR 0.10 is  the book value of the share
and  EUR  0.40 is  the  share  premium.  Only  a  whole  number of shares can be
subscribed for.

An  investor who wishes to submit a subscription order, must contact the account
operator that manages its Nasdaq CSD securities account.

Important dates:

The below timetable sets out the most important dates related to the offering:

 12 September 2025 at 10:00    Start of the offering period

 26 September 2025 at 16:00    End of the offering period

 on or about 30 September 2025 Announcement of the results of the offering

 on or about 2 October 2025    Settlement of and payment for the new shares

                               First   trading  day  on  Nasdaq  Tallinn  Stock
 on or about 15 October 2025   Exchange

Form of the subscription order:

+--------------------------------------+---------------------------------------+
|Owner of the securities account:      |[name of the investor]                 |
+--------------------------------------+---------------------------------------+
|                                      |[number  of  the  investor´s securities|
|Securities account:                   |account]                               |
+--------------------------------------+---------------------------------------+
|                                      |[name   of   the   investor´s   account|
|Account operator:                     |operator]                              |
+--------------------------------------+---------------------------------------+
|Security:                             |NORDIC FIBREBOARD AKTSIA additional 1  |
+--------------------------------------+---------------------------------------+
|ISIN code:                            |EE3801092505                           |
+--------------------------------------+---------------------------------------+
|                                      |[the   number   of   shares  which  the|
|                                      |investor   wishes   to   subscribe  for|
|Amount of securities:                 |(amount)]                              |
+--------------------------------------+---------------------------------------+
|Price (per one share):                |EUR 0.50                               |
+--------------------------------------+---------------------------------------+
|                                      |[the   number   of   shares  which  the|
|                                      |investor   wishes   to  subscribe  for,|
|Transaction amount:                   |multiplied by the offer price]         |
+--------------------------------------+---------------------------------------+
|Counterparty:                         |Nordic Fibreboard AS                   |
+--------------------------------------+---------------------------------------+
|Securities      account     of     the|                                       |
|counterparty:                         |99114136732                            |
+--------------------------------------+---------------------------------------+
|Account operator of the counterparty: |AS LHV Pank                            |
+--------------------------------------+---------------------------------------+
|Type of transaction:                  |"purchase" or ?subscription"           |
+--------------------------------------+---------------------------------------+
|Type of settlement:                   |delivery versus payment                |
+--------------------------------------+---------------------------------------+

The Company applies for the shares to be issued in the course of the offering to
be  admitted to trading on the Baltic Secondary List of the Nasdaq Tallinn Stock
Exchange.  The shares to be issued in the course of the offering are expected to
be admitted to trading on or about 15 October 2025.

Before  investing in the Company's shares,  please read the information document
in its entirety and, if necessary, consult an expert.

For additional information:

Enel Äkke
Member of the Management Board of Nordic Fibreboard AS
Tel: +372 5552 5550
E-mail: [email protected] (mailto:[email protected])

Nordic  Fibreboard  AS  is  a  holding  company established in Estonia. The main
activity  of  Nordic  Fibreboard  AS  group  is  the production and wholesale of
building materials through the subsidiary Nordic Fibreboard Ltd OÜ.

Important information:

This  announcement  is  an  advertisement  of  securities  within the meaning of
Prospectus  Regulation. Before making an investment  decision, we kindly ask the
investors to read the Company´s information document, and, if necessary, consult
with  an  expert.  Each  investor  should  make their investment solely based on
information that is contained in the information document.

The   information   contained   herein  is  not  for  release,  distribution  or
transmission, in whole or in part, directly or indirectly, in or into the United
States,  Canada, Hong Kong, Japan, Singapore,  South Africa or any other country
or  circumstance  in  which  the  release,  publication or transmission would be
unlawful. The Company's shares are publicly offered only in Estonia and there is
no  public offering  in any  jurisdiction where  such offering  or sale would be
unlawful before registration or qualification of the laws of such jurisdiction.

The  shares are offered  only on the  basis of the  information document and the
offer  is  directed  only  to  the  persons  to whom the information document is
addressed.  This announcement has not been approved by any supervisory authority
and is not a prospectus.

Enel Äkke

Member of Management Board

Nordic Fibreboard AS