1.Incorporation and General Information

Okeanis Eco Tankers Corp. (“OET,” the “Company,” “our” or “we” and together with its wholly owned subsidiaries, the “Group”) was incorporated on April 30, 2018 as a corporation under the laws of the Republic of the Marshall Islands having its registered address at Trust Company Complex, Ajeltake Road, Ajeltake Island, Majuro, Republic of the Marshall Islands MH96960. Glafki Marine Corp. (“Glafki”), owned by Messrs. Ioannis and Themistoklis Alafouzos, was the controlling shareholder of OET until June 2022. In June 2022, the voting interests of Mr. Themistoklis Alafouzos were transferred to Hospitality Assets Corp. (“Hospitality”).

Glafki and Hospitality, as of June 30, 2026, own 28.2% and 17.0% of the Company’s outstanding common shares, respectively.

The Group, as of June 30, 2026, owns seventeen vessels. The principal activity of its subsidiaries is to own, charter-out and operate tanker vessels in the international shipping market.

The consolidated financial statements comprise the financial statements of the Group.

The Company traded on the Euronext Growth Oslo (ex-Merkur Market) from July 3, 2018 until March 8, 2019, when it was then admitted for trading on the Euronext Expand (ex-Oslo Axess). On January 29, 2021, the Company transferred its listing from Euronext Expand to Oslo Stock Exchange.

On December 11, 2023, the Company’s common shares began primarily trading on the New York Stock Exchange (“NYSE”), simultaneously with their trading on the Oslo Stock Exchange, that is currently considered as the Company’s secondary listing.

As at June 30, 2026 the Group comprises the following companies:

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