ATHENS, GREECE, March 21, 2024 - Okeanis Eco Tankers Corp. (the "Company" or
"OET") (NYSE:ECO / OSE:OET), has been notified of the following transactions: 

On March 21, 2024, Iraklis Sbarounis, Chief Financial Officer of the Company,
purchased 2,050 shares of the Company on NYSE at a price of USD 30.17 per share,
and 50 shares of the Company on OSE at a price of NOK 317.64 per share.
Following these transactions, Iraklis Sbarounis holds a total of 5,600 shares in
the Company. 

A Primary Insider notification is enclosed.

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

This information is subject to the disclosure requirements pursuant to
Regulation EU 596/2014 (MAR) article 19 number 3 and the Norwegian Securities
Trading Act section 5-12.

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 and the New York Stock Exchange under the symbol
ECO. The sailing fleet consists of six modern scrubber-fitted Suezmax tankers
and eight modern scrubber-fitted VLCC tankers.

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