Okeanis Eco Tankers (ECO) files 6-K with Q2 and 1H 2025 unaudited results

Rhea-AI Filing Summary

Okeanis Eco Tankers Corp. filed a Form 6-K for August 2025 providing investors with access to its unaudited condensed financial statements for the second quarter and first six months of 2025. The filing also includes management’s discussion and analysis of financial condition and results of operations for the six months ended June 30, 2025.

The materials are furnished as exhibits to the Form 6-K and are incorporated by reference into the company’s two effective Form F-3 registration statements, allowing those shelf registration documents to rely on the updated 2025 interim financial and narrative information.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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Form 6-K

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REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934

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For the month of August 2025

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Commission File Number: 001-41858

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Okeanis Eco Tankers Corp.

(Translation of registrant’s name into English)

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c/o OET Chartering Inc., Ethnarchou Makariou Ave., & 2 D. Falireos St., 185 47 N. Faliro, Greece

(Address of principal executive office)

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Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

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Form 20-F ☒ Form 40-F ☐

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INFORMATION CONTAINED IN THIS FORM 6-K REPORT

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Attached to this report on Form 6-K as Exhibit 99.1 is a copy of the press release published by Okeanis Eco Tankers Corp. (the “Company”) on August 12, 2025, titled “Okeanis Eco Tankers Corp. - Unaudited Condensed Financial Statements for the Second Quarter and Six-Month Period of 2025.”

Attached to this report on Form 6-K as Exhibit 99.2 is a copy of Management’s Discussion and Analysis of Financial Condition and Results of Operations and the Unaudited Interim Condensed Consolidated Financial Statements of the Company for the Six Months Ended June 30, 2025.

This Report and the exhibits hereto are hereby incorporated by reference into the registrant’s registration statements: (A) on Form F-3 (File No. 333-287032), filed with the Securities and Exchange Commission on May 7, 2025 and declared effective on May 21, 2025 and (B) on Form F-3 (File No. 333-287036), filed with the Securities and Exchange Commission on May 7, 2025 and declared effective on May 21, 2025.

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SIGNATURES

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Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

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​	OKEANIS ECO TANKERS CORP.
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​	By:	/s/ Iraklis Sbarounis
​	Name:	Iraklis Sbarounis
​	Title:	Chief Financial Officer
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Date: August 12, 2025	​	​

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FAQ

What does Okeanis Eco Tankers Corp. (ECO) report in this August 2025 Form 6-K?

The Form 6-K from Okeanis Eco Tankers Corp. furnishes unaudited condensed financial statements for the second quarter and six-month period of 2025. It also includes management’s discussion and analysis of financial condition and results of operations for the six months ended June 30, 2025.

Which financial periods are covered by Okeanis Eco Tankers Corp.’s attached statements?

The attached materials cover the company’s unaudited condensed financial statements for the second quarter of 2025 and the six-month period ended June 30, 2025. Management’s discussion and analysis also focuses on the same six-month interim period in 2025.

How are the Form 6-K exhibits used in Okeanis Eco Tankers Corp.’s registration statements?

The Form 6-K and its exhibits are incorporated by reference into Okeanis Eco Tankers Corp.’s two effective Form F-3 registration statements. This means the updated 2025 interim financial and MD&A information becomes part of those shelf registration documents for securities offerings.

What documents are attached as exhibits to this Okeanis Eco Tankers Corp. Form 6-K?

Two main documents are attached: a press release titled “Okeanis Eco Tankers Corp. - Unaudited Condensed Financial Statements for the Second Quarter and Six-Month Period of 2025,” and a separate package containing management’s discussion and analysis plus unaudited interim condensed consolidated financial statements.

Who signed the August 12, 2025 Form 6-K for Okeanis Eco Tankers Corp.?

The Form 6-K was signed on behalf of Okeanis Eco Tankers Corp. by Iraklis Sbarounis. He is identified in the filing as the company’s Chief Financial Officer and executed the report dated August 12, 2025.