CADELER A/S: Reminder of trading suspension on Euronext Oslo Børs

NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN OR INTO THE UNITED STATES, AUSTRALIA, CANADA, HONG KONG, SOUTH AFRICA OR JAPAN, EXCEPT AS PERMITTED BY APPLICABLE LAW, OR ANY OTHER JURISDICTION IN WHICH THE RELEASE, PUBLICATION OR DISTRIBUTION IS UNLAWFUL OR REQUIRES REGISTRATION OR ANY OTHER MEASURES.

THIS ANNOUNCEMENT IS NOT A PROSPECTUS AND DOES NOT CONSTITUTE A PUBLIC OFFER OF ANY OF THE SECURITIES DESCRIBED HEREIN.

Copenhagen, 26 March 2026 – Reference is made to the Cadeler A/S (”Cadeler” or the “Company”) (NYSE: CDLR / OSE: CADLR) announcement on 25 March 2026 regarding a contemplated offering of new shares in the Company (the "Private Placement").

This is a reminder that a trading halt will be imposed on the Company’s shares on Euronext Oslo Børs today, 26 March 2026, from opening of trade until around 13:00 CET, to facilitate an efficient bookbuilding process for the Private Placement.

A separate announcement regarding the bookbuilding process and results of the Private Placement is expected to be made later today, prior to re-commencement of trading in the Company’s shares on Euronext Oslo Børs.

For further information, please contact:

Mikkel Gleerup CEO, Cadeler +45 3246 3102 mikkel.gleerup@cadeler.com

Alexander Simmonds EVP & CLO, Cadeler +44 7376 174172 alexander.simmonds@cadeler.com

About Cadeler A/S

Cadeler is a global leader in offshore wind installation, operations, and maintenance services. Cadeler is a pure play company, operating solely in the offshore wind industry with an uncompromising focus on safety and the environment. Cadeler owns and operates the industry’s largest fleet of jack-up offshore wind installation vessels and has for more than 10 years been a key supplier in the development of offshore wind energy to power millions of households. Cadeler’s fleet, expertise and capacity to handle the largest and most complex next-generation offshore wind installation projects positions the company to deliver exceptional services to the industry. Cadeler is committed to being at the forefront of sustainable wind farm installation and to enabling the global energy transition towards a future built on renewable energy. Cadeler is listed on the New York Stock Exchange (ticker: CDLR) and the Oslo Stock Exchange (ticker: CADLR).

To learn more, please visit www.cadeler.com.

IMPORTANT NOTICE

This announcement is not a prospectus and does not form a part of any public offer to sell, or a solicitation of a public offer to purchase, any securities of the Company. Copies of this announcement are not being made and may not be distributed or sent into any jurisdiction in which such distribution would be unlawful or would require registration or other measures. Any offering of the securities referred to in this announcement will be made by means of a set of subscription materials provided to potential investors. Investors should not subscribe for any securities referred to in this announcement except on the basis of information contained in the aforementioned subscription materials.

The securities referred to in this announcement have not been and will not be registered under the US Securities Act, or with any securities regulatory authority of any state or other jurisdiction of the United States and may not be sold, resold, delivered or otherwise distributed absent registration, except pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the US Securities Act and in compliance with any applicable securities laws of any state or other jurisdiction of the United States. The Company does not intend to register any part of the offering in the United States or to conduct a public offering of securities in the United States.

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. No securities are being offered to any Russian or Belarusian national, any natural person residing in Russia or Belarus (except for EU, EEA or Swiss nationals and persons holding an EU, EEA or Swiss residence permit), any legal person, entity, or body established in Russia or Belarus (including EU branches of such legal persons, but excluding subsidiaries of Russian or Belarus legal entities organized or incorporated within the EU), or any natural or legal person where the issuance of securities to such person would result in a breach of applicable sanctions laws.

This communication is only being distributed to and is only directed (i) in the United Kingdom at persons who have professional experience, knowledge and expertise in matters relating to investments and qualify as "investment professionals" for the purposes of article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended (the "Order"), (ii) persons who are outside the United Kingdom, and (iii) any other person to whom it can otherwise be lawfully distributed (all such persons being referred to as "relevant persons") and any investment or investment activity to which this Communication relates is available only to and will be engaged in only with Relevant Persons and any person other than a relevant person should not rely on it. The Offer Shares are being offered only in circumstances falling within the circumstances set out in Part 1 of Schedule 1 to The Public Offers and Admissions to Trading Regulations 2024 (the “POATRs”) (including, amongst other circumstances, the fact that the Offer Shares which are the subject of the Private Placement are offered subject to a minimum subscription amount per UK Applicant equivalent to at least GBP 100,000). Consequently, the Offer Shares may be offered only to “qualified investors” as defined in paragraph 15 of Schedule 1 to the POATRs, or otherwise to limited numbers of UK investors, or only where minimum consideration is required for the securities offered is GBP 100,000. Persons distributing this communication must satisfy themselves that it is lawful to do so.

Matters discussed in this announcement may constitute "forward-looking statements” as that term is defined in the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements are generally identified by terminology such as “believe,” “may,” “will,” “potentially,” “estimate,” “continue,” “anticipate,” “intend,” “could,” “would,” “should,” “project,” “target,” “plan,” “expect,” or the negatives of these terms or variations of them or similar terminology. The absence of these words, however, does not mean that the statements are not forward-looking. These forward-looking statements are based upon current expectations, beliefs, estimates and assumptions that, while considered reasonable as and when made by the Company, are, by their nature, subject to significant risks and uncertainties. In addition, new risks and uncertainties may emerge from time to time, and it is not possible to predict all such risks and uncertainties. These risks and uncertainties may cause actual results to differ materially and adversely from those expressed in any forward-looking statements. The Company cautions you not to place undue reliance on any forward-looking statements as they are not guarantees of future performance or outcomes. Actual performance and outcomes, including, without limitation, the Company’s actual results of operations, financial condition and liquidity, and the development of new markets or market segments in which the Company operates, may differ materially from those made in or suggested by the forward-looking statements contained herein.

The information, opinions and forward-looking statements contained in this announcement speak only as at its date, and are subject to change without notice. The Company does not undertake any obligation to review, update, confirm, or to release publicly any revisions to any forward-looking statements to reflect events that occur or circumstances that arise in relation to the content of this announcement.

Neither the Managers nor any of their affiliates make 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. Neither the Managers nor any of their affiliates accept any liability arising from the use of this announcement.

In connection with the Private Placement, the Managers and any of their affiliates, acting as investors for their own accounts, may subscribe for or purchase shares and in that capacity may retain, purchase, sell, offer to sell or otherwise deal for their own accounts in such shares and other securities of the Company or related investments in connection with the Private Placement or otherwise. Accordingly, references in any subscription materials to the shares being issued, offered, subscribed, acquired, placed or otherwise dealt in should be read as including any issue or offer to, or subscription, acquisition, placing or dealing by, such Manager and any of their affiliates acting as investors for their own accounts. The Managers do not intend to disclose the extent of any such investment or transactions otherwise than in accordance with any legal or regulatory obligations to do so.

The distribution of this announcement and other information may be restricted by law in certain jurisdictions. Persons into whose possession this announcement or such other information should come are required to inform themselves about and to observe any such restrictions.