ATHENS, GREECE, June 17, 2025 - Okeanis Eco Tankers Corp. (the "Company" or
"OET") (NYSE:ECO / OSE:OET), announced today that it has entered into a new
$65.0 million secured term loan facility, to finance the previously announced
declaration of its option to purchase back the Nissos Kea from its current sale
and leaseback financier. The term loan facility is provided by a syndicate of
banks, led and arranged by E.SUN Commercial Bank, Ltd. It contains an interest
rate of Term SOFR plus 135 basis points, matures in seven years, and will be
repaid in quarterly installments of $0.9 million, together with a balloon
installment of $39.8 million at maturity. It will be secured by, among other
things, a mortgage over the Nissos Kea, and it will be guaranteed by the
Company. The term loan facility includes standard covenants. The transaction is
expected to close in June 2025.

Iraklis Sbarounis, CFO of the Company, commented:
"Further to our earlier announcement in May, we are pleased to announce the new
loan with respect to the Nissos Kea. This marks another step in expanding our
footprint in this financing market, which we believe may become an important
source of capital for us in the future. Together with the recently disclosed
transactions of the Nissos Nikouria and Nissos Anafi, we now have secured new
loans for our three youngest VLCC vessels, at what we believe to be very
competitive terms and maturities extending to 2032. We view this as a reflection
of the strength of the Company and the quality of our relationships with both
longstanding and new financing partners. 

Our ongoing focus on improving our capital structure is bearing fruit. We have
meaningfully reduced our debt service breakeven costs, extended our maturity
profile and expanded our financiers palette over the last few years, further
advanced by the two most recent loan agreements. We believe there is additional
potential to enhance our debt position when we reach the refinancing window of
our last remaining sale and leaseback VLCCs, the Nissos Rhenia and Nissos
Despotiko, in 2026. Until then we will generally continue to be on the lookout
for financially accretive opportunities, if and when they arise." 

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

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 Stock Exchange 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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Commission (the "SEC"). Accordingly, you should not unduly rely on these
forward-looking statements, which speak only as of the date of this
communication. Factors that could cause actual results to differ materially
include, but are not limited to, the Company's operating or financial results