Tekna Holding ASA

Share Issue/Capital Change • Nov 26, 2025

TEKNA HOLDING ASA: LAST DAY OF TRADING IN SUBSCRIPTION RIGHTS

TEKNA HOLDING ASA: LAST DAY OF TRADING IN SUBSCRIPTION RIGHTS

NOT FOR DISTRIBUTION OR RELEASE, DIRECTLY OR INDIRECTLY, IN OR INTO THE UNITED STATES, CANADA, AUSTRALIA, THE HONG KONG SPECIAL ADMINISTRATIVE REGION OF THE PEOPLE'S REPUBLIC OF CHINA OR JAPAN OR ANY OTHER JURISDICTION IN WHICH THE DISTRIBUTION OR RELEASE WOULD BE UNLAWFUL. OTHER RESTRICTIONS ARE APPLICABLE. PLEASE SEE THE IMPORTANT NOTICE AT THE END OF THIS ANNOUNCEMENT

(Arendal, Norway / Sherbrooke QC, Canada – 26 November 2025)

Reference is made to the stock exchange announcement by Tekna Holding ASA (the "Company") on 18 November 2025 regarding commencement of the subscription period for the fully underwritten rights issue in the Company to raise gross proceeds of NOK 300 million (the "Rights Issue").

The period for trading in subscription rights in the Rights Issue (the "Subscription Rights") with ticker "TEKNT" will expire today, on 26 November 2025 at 16:30 hours (CET).

The subscription period for the Rights Issue (the "Subscription Period") expires on 2 December 2025 at 16:30 hours (CET).

Subscription Rights that are not sold before close of trading today, at 16:30 hours (CET), or not exercised to subscribe for offer shares in the Rights Issue before the expiry of the Subscription Period on 2 December 2025 at 16:30 hours (CET), will have no value and will lapse without compensation to the holder.

For more information, and the complete terms and conditions of the Rights Issue, please refer to the prospectus prepared by the Company in connection with the Rights Issue (the "Prospectus"). Subject to local applicable securities laws, the Prospectus is made available at the website of Arctic Securities AS (the "Manager"), (https://www.arctic.com/offerings).

This information is subject to disclosure requirements pursuant to section 5-12 of the Norwegian Securities Trading Act.

CONTACTS

* Arina van Oost, Investor Relations | VP Corporate Strategic Development, +33 6 7011 5190, Investors@tekna.com

* Dag Teigland, Chair of Tekna Holding ASA, +47 950 53 008

ABOUT TEKNA HOLDING ASA

Tekna is a world-leading provider of sustainable, advanced material solutions, headquartered in Sherbrooke, Canada. The company specializes in high-purity metal powders used in critical applications such as additive manufacturing (3D printing) across the aerospace, defense, medical and consumer electronics industries. The company is positioning itself in the fast-growing market of advanced nanomaterials for the microelectronics sector.

Tekna also develops cutting-edge induction plasma systems designed for both industrial research and production. Its unique, IP-protected plasma technology is powering its hypersonic wind tunnels, PlasmaSonic, which enable simulating material exposure conditions in space.

With over 30 years of experience, Tekna is a trusted partner to a broad portfolio of multinational blue-chip customers for its high-quality products and innovation. Its material solutions help enhance productivity, enable more efficient use of materials and support the transition to more resilient supply chains and a circular economy.

www.tekna.com - http://www.tekna.com

Follow us on LinkedIn: https://www.linkedin.com/company/1358990/ #investinTekna

- IMPORTANT INFORMATION –

This announcement does not constitute an offer of securities for sale or a solicitation of an offer to purchase securities of the Company in the United States or any other jurisdiction. Copies of this document may not be sent to jurisdictions, or distributed in or sent from jurisdictions, in which this is barred or prohibited by law. The securities of the Company may not be offered or sold in the United States absent registration or an exemption from registration under the U.S. Securities Act of 1933, as amended (the "U.S. Securities Act"). The securities of the Company have not been, and will not be, registered under the U.S. Securities Act. Any sale in the United States of the securities mentioned in this communication will be made solely to "qualified institutional buyers" as defined in Rule 144A under the U.S. Securities Act. No public offering of the securities will be made in the United States.

Any offering of the securities referred to in this announcement will be made by means of the Prospectus. This announcement is an advertisement and is not a prospectus for the purposes of Regulation (EU) 2017/1129 of the European Parliament and of the Council of 14 June 2017 on prospectuses to be published when securities are offered to the public or admitted to trading on a regulated market, and repealing Directive 2003/71/EC (as amended) as implemented in any EEA Member State (the "Prospectus Regulation"). Investors should not subscribe for any securities referred to in this announcement except on the basis of information contained in the Prospectus. Copies of the Prospectus will, following publication, be available from the Company's registered office and, subject to certain exceptions, on the websites of the Manager.

In any EEA Member State, this communication is only addressed to and is only directed at qualified investors in that Member State within the meaning of the Prospectus Regulation, i.e., only to investors who can receive the offer without an approved prospectus in such EEA Member State. In the United Kingdom, this communication is only addressed to and is only directed at Qualified Investors who (i) are investment professionals falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 (as amended) (the "Order") or (ii) are persons falling within Article 49(2)(a) to (d) of the Order (high net worth companies, unincorporated associations, etc.) (all such persons together being referred to as "Relevant Persons"). These materials are directed only at Relevant Persons and must not be acted on or relied on by persons who are not Relevant Persons. Any investment or investment activity to which this announcement relates is available only to Relevant Persons and will be engaged in only with Relevant Persons. Persons distributing this communication must satisfy themselves that it is lawful to do so.

This document is not for publication or distribution in, directly or indirectly, Australia, Canada, Japan, the United States or any other jurisdiction in which such release, publication or distribution would be unlawful, and it does not constitute an offer or invitation to subscribe for or purchase any securities in such countries or in any other jurisdiction. In particular, the document and the information contained herein should not be distributed or otherwise transmitted into the United States or to publications with a general circulation in the United States of America.

The Manager is acting for the Company in connection with the Rights Issue and no one else and will not be responsible to anyone other than the Company for providing the protections afforded to its respective clients or for providing advice in relation to the Rights Issue or any transaction or arrangement referred to in this announcement.

Matters discussed in this announcement may constitute forward-looking statements. Forward looking statements are statements that are not historical facts and may be identified by words such as "anticipate", "believe", "continue", "estimate", "expect", "intends", "may", "should", "will" and similar expressions. The forward-looking statements in this release are based upon various assumptions, many of which are based, in turn, upon further assumptions.

Although the Company believes that these assumptions were reasonable when made, these assumptions are inherently subject to significant known and unknown risks, uncertainties, contingencies and other important factors which are difficult or impossible to predict and are beyond its control. Such risks, uncertainties, contingencies and other important factors could cause actual events to differ materially from the expectations expressed or implied in this release by such forward-looking statements. The information, opinions and forward-looking statements contained in this announcement speak only as at its date and are subject to change without notice. This announcement is made by and is the responsibility of, the Company. Neither the Manager nor any of its respective affiliates makes any representation as to the accuracy or completeness of this announcement and none of them accepts any responsibility for the contents of this announcement or any matters referred to herein.

This announcement is for information purposes only and is not to be relied upon in substitution for the exercise of independent judgment. It is not intended as investment advice and under no circumstances is it to be used or considered as an offer to sell, or a solicitation of an offer to buy any securities or a recommendation to buy or sell any securities of the Company. No reliance may be placed for any purpose on the information contained in this announcement or its accuracy, fairness or completeness. Neither the Manager nor any of its respective affiliates accepts any liability arising from the use of this announcement.