Okeanis Eco Tankers Corp. – Commercial Update

20 Jan 2026 22:15 CET

ATHENS, GREECE, January 20, 2026: Okeanis Eco Tankers Corp. (the “Company” or
“OET” or “Okeanis” or “we”) (NYSE:ECO / OSE:OET), announced the following
commercial update:

As of the date of this release, we estimate the following Daily Time Charter
Equivalent Rate* (“Daily TCE Rate”) on our vessels:
- On a fleetwide basis, for Q4 2025 we anticipate a Daily TCE Rate of
approximately $75,400 per operating day, and thus far in Q1 2026, approximately
26% of the available fleetwide spot days have been booked at an average Daily
TCE Rate of $106,700 per operating day. All of our vessels are trading spot /
short term.
- For our VLCC vessels, for Q4 2025 we anticipate a Daily TCE Rate of
approximately $91,300 per operating day, and thus far in Q1 2026, approximately
37% of the available VLCC spot days have been booked at an average Daily TCE
Rate of $110,100 per operating day.
- For our Suezmax vessels, for Q4 2025 we anticipate a Daily TCE Rate of
approximately $50,800 per operating day, and thus far in Q1 2026, approximately
16% of the available Suezmax spot days have been booked at an average Daily TCE
Rate of $98,500 per operating day.

All Daily TCE Rate estimates are determined by applying certain IFRS adjustments
for their calculation.

Furthermore, in reference to earlier announcements, we confirm the successful
delivery into our fleet of the Nissos Piperi on January 8, 2026, and the Nissos
Serifopoula on January 14, 2026, our two recently acquired newbuilding Suezmax
vessels, which were under construction at Daehan Shipbuilding Co., Ltd.

* Daily TCE Rate is a non-IFRS measure. Please see below “Daily TCE Rate
Reconciliation.”

Daily TCE Rate Reconciliation
In the shipping industry, economic decisions are based on vessels’ deployment
upon anticipated time charter equivalent rates, or TCE rates, and time charter
equivalent revenue, and industry analysts typically measure shipping freight
rates in terms of TCE rates. This is because under time-charter and bareboat
contracts the customer usually pays the voyage expenses, while under voyage
charters the ship-owner usually pays the voyage expenses, which typically are
added to the hire rate at an approximate cost. In a voyage charter contract,
consideration is received for the use of a vessel between designated ports for
the duration of the voyage only, at an agreed upon rate per volume of cargo
carried. In a time charter contract, the customer (also known as the charterer)
is responsible to pay for fuel consumed and port expenses incurred during the
agreed period of time. In a voyage charter contract, the Company is responsible
for maintaining the voyage, including vessel scheduling and routing, as well as
any related voyage expenses, such as fuel, port and other expenses. Under voyage
charters, the majority of voyage expenses are generally borne by us whereas for
vessels in a time charter, such expenses are borne by the time charter operator.
In a bareboat charter, the customer pays for all of the vessel’s operating
expenses, and undertakes to maintain the vessel in a good state of repair and
efficient operating condition and drydock the vessel during this period as per
the classification society requirements. We may incur voyage related expenses
when positioning or repositioning vessels before or after the period of a time
or other charter, during periods of commercial waiting time or while off-hire
during drydocking or due to other unforeseen circumstances. Because of the
different nature of these types of arrangements, the amount of revenues earned
by the Company can differ significantly between them.

The Daily TCE Rate is a measure of the average daily revenue performance of a
vessel. The Company reports its financial results in accordance with
International Financial Reporting Standards (“IFRS”). The Daily TCE Rate and
time charter equivalent revenue are not measures of revenue under U.S. generally
accepted accounting principles, or GAAP, (i.e., they are non-GAAP measures) or
IFRS and should not be considered as alternatives to, or superior to, any
measure of revenue and financial performance presented in accordance with IFRS.
We calculate the Daily TCE Rate by dividing revenues (time charter and/or voyage
charter revenues), less commission and voyage expenses (which then equals “time
charter equivalent revenue”), by the number of operating days during that period
(we define operating days as calendar days less any scheduled or unscheduled
days that our vessels are off-hire due to unforeseen technical and commercial
circumstances). Our calculation of the Daily TCE Rates and time charter
equivalent revenue may not be comparable to that reported by other companies. We
define calendar days as the total number of days the vessels were in our
possession for the relevant period. Calendar days are an indicator of the size
of our fleet during the relevant period and affect the amount of expenses that
we record during that period. We and other companies in the shipping industry
use operating days to measure the aggregate number of days in a period that our
vessels generate revenues. The period a vessel is not being chartered or is
unable to perform the services for which it is required under a charter is
“off-hire.” Daily TCE Rates are presented herein both on an estimated historic
basis and on a forward-looking basis. We have not provided a reconciliation of
forward-looking Daily TCE Rate because the most directly comparable IFRS measure
on a forward-looking basis is not available to us without unreasonable effort.

Consistent with industry practice, we use Daily TCE Rates and time charter
equivalent revenue because they provide a means of comparison between different
types of vessel employment and, therefore, assists in evaluating our financial
performance. We believe the Daily TCE Rate and time charter equivalent revenue
provide additional meaningful information in conjunction with Revenue, the most
directly comparable GAAP and IFRS measure, because it assists our management in
making decisions regarding the deployment and use of our vessels and in
evaluating their financial performance. The Daily TCE Rate and time charter
equivalent revenue are measures used to compare period-to-period changes in a
company’s performance, and management believes that the Daily TCE Rate and time
charter equivalent revenue provide meaningful information to our investors.

The following table sets forth our computation of Daily TCE Rate, including a
reconciliation of revenues to the Daily TCE Rate for Q4 2025:

(in USD million, except per day data):

Revenue: $124.03
Voyage expenses: $31.45
Commissions: $1.25
Time charter equivalent revenue: $91.33
Calendar days: 1,288
Off-hire days: 77
Operating days: 1,211
Daily TCE Rate per day: $75,400

According to its financial calendar, the Company plans to announce its results
for the fourth quarter 2025 on February 18, 2026, with such results to be
approved by the Board of Directors of the Company prior to such announcement.
The Company has not finalized its financial statement closing process for the
year ended December 31, 2025. During the course of that process, the Company may
identify items that would require it to make adjustments, which may be material
to the information provided above. As a result, the information above
constitutes forward-looking statements and is subject to risks and
uncertainties, including possible adjustments to the preliminary results
disclosed above. We are providing this information on a one-time basis only and
do not intend to update this information prior to the final earnings release for
each reporting period.

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 eight modern scrubber-fitted
Suezmax tankers and eight modern scrubber-fitted VLCC tankers.

Forward Looking Statements
This communication contains “forward-looking statements”, including as defined
under U.S. federal securities laws. Forward-looking statements provide the
Company’s current expectations or forecasts of future events. Forward-looking
statements include statements about the Company’s expectations, beliefs, plans,
objectives, intentions, assumptions and other statements that are not historical
facts or that are not present facts or conditions. Words or phrases such as
“anticipate,” “believe,” “continue,” “estimate,” “expect,” “hope,” “intend,”
“may,” “ongoing,” “plan,” “potential,” “predict,” “project,” “should,” “will” or
similar words or phrases, or the negatives of those words or phrases, may
identify forward-looking statements, but the absence of these words does not
necessarily mean that a statement is not forward-looking. Forward-looking
statements are subject to known and unknown risks and uncertainties and are
based on potentially inaccurate assumptions that could cause actual results to
differ materially from those expected or implied by the forward-looking
statements. The Company’s actual results could differ materially from those
anticipated in forward-looking statements for many reasons, including as
described in the Company’s filings with the U.S. Securities and Exchange
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;
the Company’s liquidity, including its ability to service its indebtedness;
competitive factors in the market in which the Company operates; shipping
industry trends, including charter rates, vessel values and factors affecting
vessel supply and demand; future, pending or recent acquisitions and
dispositions, business strategy, areas of possible expansion or contraction, and
expected capital spending or operating expenses; risks associated with
operations; broader market impacts arising from war (or threatened war) or
international hostilities; risks associated with pandemics, including effects on
demand for oil and other products transported by tankers and the transportation
thereof; and other factors listed from time to time in the Company’s filings
with the SEC. Except to the extent required by law, the Company expressly
disclaims any obligations or undertaking to release publicly any updates or
revisions to any forward-looking statements contained herein to reflect any
change in the Company’s expectations with respect thereto or any change in
events, conditions, or circumstances on which any statement is based. You
should, however, review the factors and risks the Company describes in the
reports it files and furnishes from time to time with the SEC, which can be
obtained free of charge on the SEC’s website at www.sec.gov.

This information is considered to constitute inside information pursuant to
Regulation EU 596/2014 (MAR) and is subject to the disclosure requirements
pursuant to Section 5-12 of the Norwegian Securities Trading Act. The
information was submitted for publication by Irene Chaidemenou, Legal Counsel,
Okeanis Eco Tankers Corp. at the time and date set out above.

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