ATHENS, GREECE, April 7, 2023 – Okeanis Eco Tankers Corp. (the “Company” or “OET”) (Oslo Bors: OET) announces the release of its annual report which contains audited financial statements for the fiscal year ended December 31, 2022. There were no material differences between the preliminary results and the final audited results.

The annual report (pdf, xhtml) is attached to this press release and is available on the Company’s website: www.okeanisecotankers.com.

About OET

OET is an international tanker company providing seaborne transportation of crude oil. The Company was incorporated on April 30, 2018 under the laws of the Republic of the Marshall Islands and is listed on Oslo Bors under the symbol OET. The sailing fleet consists of six modern scrubber-fitted Suezmax tankers and eight modern scrubber-fitted VLCC tankers.

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

Contact:

Iraklis Sbarounis, CFO

Tel: +30 210 480 4200

Email: ir@okeanisecotankers.com