FORM 6-K

SECURITIES AND EXCHANGE COMMISSION 

Washington, D.C. 20549

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of December 2023

Commission File Number: 001-41858

Okeanis Eco Tankers Corp. 

(Translation of registrant’s name into English)

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

(Address of principal executive office)

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

Form 20-F x           Form 40-F ¨

INFORMATION CONTAINED IN THIS FORM 6-K REPORT

Attached to this report on Form 6-K as Exhibit 99.1 is a copy of the press release of Okeanis Eco Tankers Corp. (the “Company”) dated December 4, 2023, titled “Okeanis Eco Tankers Corp. - Concludes U.S. regulatory review process for NYSE listing and provides update on share registration conversion and trading suspension.”

Attached to this report on Form 6-K as Exhibit 99.2 is a copy of the press release of the Company dated December 5, 2023, titled “Okeanis Eco Tankers Corp. – Information about trading suspension.”

SIGNATURES

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.

Okeanis Eco Tankers Corp.
By:	/s/ Iraklis Sbarounis
Name:	Iraklis Sbarounis
Title:	Chief Financial Officer

Date: December 6, 2023