Okeanis Eco Tankers Corp. – Key Information relating to Q4 2025 dividend

18 Feb 2026 22:20 CET

ATHENS, GREECE, February 18, 2026 - Okeanis Eco Tankers Corp. (“OET” or the
“Company”) (NYSE: ECO / OSE: OET), announced today that the Company's board of
directors (the “Board”) has declared a dividend on its common shares (the
“Dividend”).

Due to implementation of the Central Securities Depository Regulation (“CSDR”)
in Norway, shareholders who hold common shares registered in Euronext Securities
Oslo (“VPS”), Norway’s central securities depository, should please note the
information on the payment date to the common shares registered in VPS below.

The New York Stock Exchange (“NYSE”) settles its trades on a T+1 basis, while
the Oslo Stock Exchange (“OSE”) settles its trades on a T+2 basis. As a result,
there will be different ex-dividend dates between the two exchanges, as set out
below.

Key information relating to the Dividend:

• Dividend amount: USD 1.55 per common share.
• Declared currency: USD. Dividends payable to common shares registered in the
Euronext VPS will be distributed in NOK.
• Date of Board approval: February 18, 2026.
• Last day including right OSE: February 27, 2026, the last date on which the
Company’s common shares trading on the OSE will include the entitlement to the
Dividend.
• Last day including right NYSE: March 2, 2026, the last date on which the
Company’s common shares trading on the NYSE will include the entitlement to the
Dividend.
• Ex-date OSE: March 2, 2026, the date on which the Company’s common shares will
begin trading on the OSE without the entitlement to the Dividend.
• Ex-date NYSE: March 3, 2026, the date on which the Company’s common shares
will begin trading on the NYSE without the entitlement to the Dividend.
• Record date OSE and NYSE: March 3, 2026
• Payment date: March 10, 2026. Due to the implementation of CSDR in Norway, the
Dividend payable on common shares that are registered in the Euronext VPS is
expected to be distributed to Euronext VPS shareholders on or about March 13,
2026.

The Company encourages you to contact your bank, broker, nominee or other
institution if you have any questions regarding the mechanics and timing of
having the Dividend attributable to your common shares credited to your account.

Contacts

Company:
Iraklis Sbarounis, CFO
Tel: +30 210 480 4200
ir@okeanisecotankers.com

Investor Relations / Media Contact:
Nicolas Bornozis, President
Capital Link, Inc.
230 Park Avenue, Suite 1540, New York, N.Y. 10169
Tel: +1 (212) 661-7566
okeanisecotankers@capitallink.com

About OET

OET is a leading international tanker company providing seaborne transportation
of crude oil and refined products. The Company was incorporated on April 30,
2018 under the laws of the Republic of the Marshall Islands and is listed on
Oslo Stock Exchange under the symbol OET and the New York Stock Exchange under
the symbol ECO. The sailing fleet consists of eight modern scrubber-fitted
Suezmax tankers and eight modern scrubber-fitted VLCC tankers.

Forward Looking Statements

This communication contains “forward-looking statements”, including as defined
under applicable laws, such as the US Private Securities Litigation Reform Act
of 1995. Forward-looking statements provide the Company’s current expectations
or forecasts of future events. Forward-looking statements include statements
about the Company’s expectations, beliefs, plans, objectives, intentions,
assumptions and other statements that are not historical facts or that are not
present facts or conditions. Words or phrases such as “anticipate,” “believe,”
“continue,” “estimate,” “expect,” “hope,” “intend,” “may,” “ongoing,” “plan,”
“potential,” “predict,” “project,” “should,” “will” or similar words or phrases,
or the negatives of those words or phrases, may identify forward-looking
statements, 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 Company’s
actual results could differ materially from those anticipated in forward-looking
statements for many reasons, including as described in the Company’s filings
with the SEC. Accordingly, you should not unduly rely on these forward-looking
statements, which speak only as of the date of this communication. Factors that
could cause actual results to differ materially include, but are not limited to,
the Company’s operating or financial results; the Company’s liquidity, including
its ability to service its indebtedness; competitive factors in the market in
which the Company operates; shipping industry trends, including charter rates,
vessel values and factors affecting vessel supply and demand; future, pending or
recent acquisitions and dispositions, business strategy, areas of possible
expansion or contraction, and expected capital spending or operating expenses;
risks associated with operations; broader market impacts arising from war (or
threatened war) or international hostilities; risks associated with pandemics,
including effects on demand for oil and other products transported by tankers
and the transportation thereof; and other factors listed from time to time in
the Company’s filings with the SEC. Except to the extent required by law, the
Company expressly disclaims any obligations or undertaking to release publicly
any updates or revisions to any forward-looking statements contained herein to
reflect any change in the Company’s expectations with respect thereto or any
change in events, conditions, or circumstances on which any statement is based.
You should, however, review the factors and risks the Company describes in the
reports it files and furnishes from time to time with the SEC, which can be
obtained free of charge on the SEC’s website at www.sec.gov.

This information is published in accordance with the requirements of the
Continuing Obligations.

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