ATHENS, GREECE, November 30, 2023: Reference is made to the stock exchange
announcement made by Okeanis Eco Tankers Corp. ("OET" or the "Company") on
November 2, 2023, regarding inter alia the Company's contemplated listing on
NYSE and Notice of a Special Meeting of Shareholders. 

The Company advises that a special meeting of the shareholders of the Company
was held on November 30, 2023 and that all items on the agenda were approved.
The Company's third amended and restated bylaws and second amended and restated
articles of incorporation, once adopted, will be made available on its website: 
www.okeanisecotankers.com.

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

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

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 Børs under the symbol OET. The sailing fleet consists of six modern
scrubber-fitted Suezmax tankers and eight modern scrubber-fitted VLCC tankers. 

Forward-Looking Statements 
Matters discussed in this release may contain certain forward-looking statements
relating to corporate affairs, the business, financial performance and results
of the Company and its subsidiaries and/or the industry in which they operate.
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," "intend," "may," "ongoing," "plan," "potential,"
"predict," "project," "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 forward-looking statements contained in
this release, including assumptions, opinions and views of the Company or cited
from third-party sources, are solely opinions and forecasts that are subject to
risks, uncertainties and other factors, including risks described under the
section captioned "Risk Factors," in OET's registration statement on Form 20-F
filed with the SEC on November 2, 2023, which contains additional information
about factors that could affect actual results, including risks relating to the
Company's industry, business operations, financing and liquidity, regulation and
other risks described in the registration statement. The Company's actual
results could differ materially from those anticipated in forward-looking
statements for many reasons.  The Company does not provide any assurance that
the assumptions underlying such forward-looking statements are free from errors,
nor does the Company accept any responsibility for the future accuracy of the
opinions expressed in the presentation or the actual occurrence of the
forecasted developments. No obligations are assumed to update any
forward-looking statements or to conform to these forward-looking statements to
actual results. 

The information, opinions and forward-looking statements contained in this
announcement speak only as at its date and are subject to change without notice.