Capital Tankers Corp.: First Day of Trading on Euronext Growth Oslo and Publication of Information Document

NOT FOR PUBLICATION, DISTRIBUTION OR RELEASE, IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN OR INTO THE UNITED STATES OF AMERICA, AUSTRALIA, CANADA, THE HONG KONG SPECIAL ADMINISTRATIVE REGION OF THE PEOPLE'S REPUBLIC OF CHINA OR JAPAN, OR ANY OTHER JURISDICTION IN WHICH THE PUBLICATION, DISTRIBUTION OR RELEASE WOULD BE UNLAWFUL.

Athens, Greece, 17 March 2026: Reference is made to the announcement made by Capital Tankers Corp. (the "Company") on 27 February 2026 regarding the successful private placement of 35,700,000 shares in the Company (the "Private Placement"), which included 31,050,000 new shares and 4,650,000 over-allotted shares (collectively, the "Offer Shares"), for a subscription price of NOK 134 per Offer Share, equalling gross proceeds for the Company of approx. NOK 4.2 billion, and to the announcement made by Euronext Oslo Børs on 11 March 2026 regarding its decision to admit the shares of the Company to trading on Euronext Growth Oslo.

Delivery of the Offer Shares, which are eligible for trading on Euronext Growth Oslo, is carried out today, 17 March 2026. The Company's current issued share capital is USD 131,050 divided into 131,050,000 common shares, each with a nominal value of USD 0.001.

The Company has prepared an information document solely for the purpose of the admission to trading on Euronext Growth Oslo. The information document is attached to this announcement and will be made available on the Company's website: www.capitaltankers.com.

The first day of trading in the Company's shares on Euronext Growth Oslo is today, 17 March 2026, under the ticker "CAPT".

Fearnley Securities AS and Pareto Securities AS are acting as joint global coordinators in the Private Placement and as Euronext Growth Advisors to the Company in connection with the listing at Euronext Growth Oslo. Clarksons Securities AS and SB1 Markets AS are acting as joint bookrunners in the Private Placement (the joint global coordinators and the joint bookrunners, collectively, the "Managers").

Advokatfirmaet Thommessen AS is acting as Norwegian legal counsel, and Watson Farley & Williams LLP is acting as Marshall Islands counsel and Bairactaris & Partners as shipping counsel, to the Company. Advokatfirmaet Simonsen Vogt Wiig AS is acting as legal counsel to the Managers.

This information is subject to disclosure requirements pursuant to section 5-12 of the Norwegian Securities Trading Act and the Oslo Rule Book II.

For more information, please contact: Brian Gallagher, Investor Relations and Business Development Telephone: +44 770 368 4996 Email: b.gallagher@capitalmaritime.com

IMPORTANT NOTICE The information contained in this announcement is for background purposes only and does not purport to be full or complete. No reliance may be placed for any purpose on the information contained in this announcement or its accuracy, fairness or completeness. These materials are not and do not form a part of any offer of securities for sale, or a solicitation of an offer to purchase, any securities of the Company in the United States or any other jurisdiction. Copies of these materials 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. The securities referred to in this announcement have not been and will not be registered under the U.S. Securities Act of 1933, as amended (the "Securities Act"), and accordingly may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements of the Securities Act and in accordance with applicable U.S. state securities laws. 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. Any sale in the United States of the securities mentioned herein will be made solely to "qualified institutional buyers" (QIBs) as defined in Rule 144A under the Securities Act, pursuant to an exemption from the registration requirements under the Securities Act, as well as to major U.S. institutional investors under SEC Rule 15a-6 to the United States Exchange Act of 1934, as amended. 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 EU Prospectus Regulation, i.e., only to investors who can receive any offering of securities referred to in this announcement without an approved prospectus in such EEA member state. "EU Prospectus Regulation" means Regulation (EU) 2017/1129, as amended (together with any applicable implementing measures in any EEA member state). In the United Kingdom, this communication is only addressed to and is only directed at Qualified Investors (as defined in the Public Offers and Admissions to Trading Regulations 2024) who are (i) 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) 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 communication 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 communication contains certain forward-looking statements concerning future events, including possible issuance of equity securities of the Company and listing of securities. Forward-looking statements are statements that are not historical facts and may be identified by words such as "believe", "expect", "anticipate", "strategy", "intends", "estimate", "will", "may", "continue", "should" and similar expressions, but the absence of these words does not necessarily mean that a statement is not forward-looking. Forward-looking statements are subject to known and unknown risks and uncertainties and are based on potentially inaccurate assumptions that could cause actual results to differ materially from those expected or implied by the forward-looking statements. The forward-looking statements in this communication are based upon various assumptions, many of which are based, in turn, upon further assumptions. The Company believes that these assumptions were reasonable when made. However, 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 include, but are not limited to, the possibility that the Company will determine not to, or be unable to, issue any equity securities or list its securities on a particular stock market, and could cause actual events to differ materially from the expectations expressed or implied in this release by such forward-looking statements. The Company does not make any guarantee that the assumptions underlying the forward-looking statements in this announcement are free from errors. Accordingly, you should not unduly rely on these forward-looking statements, which speak only as of the date of this communication. The information, opinions and forward-looking statements contained in this communication speak only as at its date and are subject to change without notice. Each of the Company, the Managers and their respective affiliates expressly disclaims any obligation or undertaking to update, review or revise any statement contained in this communication whether as a result of new information, future developments or otherwise. The Managers are acting exclusively for the Company and no one else in connection with the Private Placement and the listing and will not be responsible to anyone other than the Company for providing the protections afforded to their respective clients, or for advice in relation to the contents of this announcement or any of the matters referred to herein. Neither the Managers nor any of their 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. Neither the Managers nor any of their respective affiliates accepts any liability arising from the use of this announcement. Certain figures contained in this announcement, including financial information, have been subject to rounding adjustments. Accordingly, in certain instances, the sum or percentage change of the numbers contained in this announcement may not conform exactly with the total figure given. 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. Any failure to comply with these restrictions may constitute a violation of the securities laws of any such jurisdiction. Specifically, neither this announcement nor the information contained herein is for publication, distribution or release, in whole or in part, directly or indirectly, in or into or from the United States (including its territories and possessions, any state of the United States and the District of Columbia), Australia, Canada, Hong Kong, Japan or any other jurisdiction where to do so would constitute a violation of the relevant laws of such jurisdiction.