Rights Offering Presentation
May 30, 2012

Confidential

Issuer Free Writing Prospectus

Filed Pursuant to Rule 433

Registration Statement No. 333-177014

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Forward-Looking Statements

Statements in this presentation may be "forward-looking statements" within the meaning of federal securities laws. The matters
discussed herein that are forward-looking statements are based on current management expectations that involve risks and
uncertainties that may result in such expectations not being realized. Actual outcomes and results may differ materially from what is
expressed or forecasted in such forward-looking statements due to numerous potential risks and uncertainties including, but not
limited to, the need to manage our growth and integrate additional capital, acquire additional vessels, volatility in the dry-bulk shipping
business and vessel charter rates, our ability to obtain sufficient capital, the volatility of our stock price, and other risks and factors.
Forward-looking statements made during this presentation speak only as of the date on which they are made, and Euroseas does not
undertake any obligation to update any forward-looking statement to reflect events or circumstances after the date of this presentation.

Because forward-looking statements are subject to risks and uncertainties, we caution you not to place undue reliance on any forward-
looking statements. All written or oral forward-looking statements by Euroseas or persons acting on its behalf are qualified by these
cautionary statements.

This presentation also contains historical data about the dry bulk and containerized trade, dry bulk and containership fleet and dry bulk
and containership rates. These figures have been compiled by theCompany based on availabledata from a variety of sources like
broker reports and various industry publications or represent Company’s own estimates.The Company exercised reasonable care and
judgment in preparing these estimates, however, the estimates provided herein may not match information from other sources.

This presentation shall not constitute an offer to sell or the solicitation of an offer to buy securities, nor shall there be any sale of
securities in any jurisdiction in which such offer, solicitation or sale would be unlawful under the securities laws of such jurisdiction.

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Rights Offering Overview

ØRaise up to $15 million by offering approximately 13.85 million shares at $1.10 per share

ØAll shareholders of record as of May 14, 2012 are eligible to participate

ØRights Offering ends at 5:00 p.m., Eastern Daylight Time, on June 15, 2012, unless we extend
the expiration date or cancel the offering

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Why Pursue A Rights Offering Now

ØPursue further acquisition opportunities

ØBoth sectors we operate, drybulkers and containerships, will offer acquisition opportunities at historically low
prices in the future

ØWe are not raising cash due to any distress situation

ØWe have more than $35 million cash and cash equivalents (including restricted cash) as of March 31, 2012
against debt of about $70 million and net debt of around 25-30% of the market value of the fleet

ØA Rights Offering offers the possibility of no dilution to fully participating shareholders

ØExpenses of the offering are low relative to other capital raising options (no underwriting fees, less legal
costs)

ØNon-participating shareholders could suffer potentially less dilution as compared to other equity raising
options

ØAlternative fundraising options (follow-ons, ATMs, convertibles, private placements, etc.) could all be
potentially more dilutive for all shareholders

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Asset Values at Historical Lows

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10-Year Secondhand Prices

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Offering Details: Basic and Oversubscription Rights

ØExisting shareholders will receive the right to acquire 1 share for each 2.25 shares they owned
on May 14, 2102 (“basic subscription right”)

ØWe will issue up to a maximum of 13,852,094 shares of common stock resulting in up to a maximum of
45,019,305 shares of common stock post offering

ØRights cannot be sold and are non-transferable.

ØShareholders have the option to “over-subscribe” and exercise any rights left unexercised by
other shareholders (“oversubscription privilege”)

ØThe oversubscription privilege entitles shareholders who exercise their basic subscription privilege in full to
purchase, at the subscription price, any shares that other rights holders do not purchase under their basic
subscription privileges

ØOversubscription rights will be allocated in proportion to each participating shareholder’s ownership as of the
record date up to the maximum number of shares each shareholder who exercises its oversubscription
privilege requested

ØIn no event will we issue more than 13,852,094 shares of common stock

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Rights Offering Economics

ØIf participation in the rights offering is 100%, we will raise $15.2 million gross, or $14.9 million
net after offering expenses

ØOffering expenses will costamount approximately $0.01 per share

ØShareholders who would not participate in the offering would suffer a mathematical dilution
of about 13%

ØThe weighted average of our closing stock price and market capitalization as of May 4, 2012, the date we
announced our intention to pursue a Rights Offering, and the price per share and proceeds of the offering

ØCash as of 3/31/2012 on a pro-forma basis after the offering

ØCash, including restricted cash, as of 3/31/2012:$35.7 million

ØOffering proceeds, net (assuming 100% participation):$14.9 million

ØTotal cash after offering:$50.6 million

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Commitment of Founding Shareholder

ØOur founding shareholder, Friends Investment Company Inc., “Friends”, has indicated to us
that it will exercise its basic subscription privilege in full and participate in the oversubscription
privilege

ØAs of today, Friends holds approximately 11.2 million shares, or about 35.9% of our issued and outstanding
shares

ØSince our last follow-on offering Friends has steadily increased its share ownership

ØHas since purchasedabout 1.75 million shares

ØFriends percentage of ownership will increase as a result of the Rights Offering if there will be
shareholders who do not exercise their basic privilege

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Exercise Mechanics

ØShareholders will receive a mailing with the prospectus supplement and instructions on how to
exercise their basic and oversubscription privileges

ØIn general, subscription forms and payment for both basic and oversubscription privilege are due by 5:00 p.m.
on June 15, 2012, unless we extend the expiration date or cancel the offering

ØFor shareholders exercising via their broker or other nominee holders, forms and payment are due by the
nominee by 5:00 p.m. on June 14, 2012

ØIf an oversubscription request is not fully filled, funds for the unfilled portion of the
oversubscription request will be returned

ØReturned funds will earn no interest; there is no deduction

ØThe Company has appointed:

ØPhoenixAdvisory Partners, as “Information Agent”, which can answer any questions regarding the mechanics
of the offering, and,

ØThe Company’s transfer agent, American Stock Transfer and Trust Company (“AST”), as“Subscription Agent”
for the offering, which will receive all subscription forms and payments and allocate any shares available to
satisfy any over-subscription requests

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Summary

ØOver the last 7 years, Euroseas has built a track record of being:

ØA conservative, value driven company

ØFocused on creating returns for our shareholders

ØWe have maintained a strong balance sheet throughout the financial crisis and subsequent
challenging years

ØAvoided investing at the peak of the markets

ØRenewed our drybulk fleet with younger vessels right after the financial crisis, and,

ØGrown our containership fleet, mainly through Euromar (our joint venture with 2 private equity firms), since
2010 when prices have been hovering at their historical bottom

ØAs a result of our strategy, we have not been in need to raise funds, potentially at discounted
valuation

ØThe cyclicality of the shipping markets avails a well capitalized and committed investor the chance of significant
returns when the cycle turns

ØWe look forward to our shareholders’ continuing commitment to our strategy of creating value
in a risk-managed way via their participation in the rights offering

ØIntend to buy assets at low prices and capitalize on the cyclical recovery of the markets

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Euroseas Contacts

Euroseas Ltd.

c/o Eurobulk Ltd

4, Messogiou & Evropis Street

151 25 Maroussi, Greece

www.euroseas.gr

euroseas@euroseas.gr

Tel. +30-211-1804005

Fax.+30-211-1804097

or,

Tasos Aslidis

Chief Financial Officer

Euroseas Ltd.

11 Canterbury Lane

Watchung, NJ 07069

aha@euroseas.gr

Tel: 908-3019091

Fax: 908-3019747

Nicolas Bornozis

Investor Relations

Capital Link, Inc.

230 Park Avenue, Suite 1536

New York, NY 10169

nbornozis@capitallink.com

Tel: 212- 6617566

Fax: 212-6617526

The offering will be made pursuant to the Company's existing shelf registration statement previously filed with and subsequently declared effective by the Securities and Exchange Commission (the "SEC").

The Company has filed a registration statement (including a prospectus and prospectus supplement) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus and the prospectus supplement in that registration statement and other documents the Company has filed with the SEC for more complete information about the issuer and this offering. You may get those documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the Company will arrange to send you the prospectus and prospectus supplement if you request it by calling or emailing the information agent for the offering, Phoenix Advisory Partners, toll-free at (877) 478-5038.