Euroseas Ltd. Announces Commencement of Rights Offering

Euroseas Ltd.

announced today that it has commenced its previously announced rights offering to shareholders of the Company. Pursuant to the rights offering, the Company will offer approximately 13,852,094 shares of common stock only to holders of record of its common stock as of the close of business on May 14, 2012. As soon as practicable, the Company will commence the mailing of an offering subscription package to Record Date Holders. The Company intends to raise gross proceeds of approximately $15.2 million through the rights offering and use the proceeds to renew and expand its fleet, to participate in joint ventures with the objective to acquire vessels and for general corporate purposes. The Offered Shares will be sold to Record Date Holders pursuant to non-transferable subscription rights. Basic subscription rights will be allocated in one non-transferable subscription right for each 2.25 shares of common stock owned by Record Date Holders on the Record Date. Each subscription right represents the right to purchase one share of common stock of the Company at a subscription price of $1.10 per share and consists of a basic subscription privilege and an oversubscription privilege, which will be available if the rights offering is not fully subscribed under the basic subscription privilege. Offered Shares not purchased under the basic subscription privilege can be purchased pursuant to the oversubscription privilege and will be allocated to Record Date Holders choosing to exercise their oversubscription privilege. If there more requests for oversubscription shares are received than shares are available, shares not purchased under the basic subscription privilege will be allocated to Record Date Holders exercising their oversubscription pro rata to each oversubscribing holder based on the number of shares such holder purchased pursuant to the exercise of its basic subscription privilege in proportion to the total number of shares purchased by all oversubscribing holders pursuant to the exercise of their basic subscription privileges.