HONG KONG, CHINA - Sept. 19, 2005 /CNW/ - Seaspan Corporation ("Seaspan") (NYSE:SSW) announced today that it acquired its 12th vessel, the CSCL Brisbane (the "Brisbane"), a newly built 4250 twenty foot equivalent unit ("TEU") vessel, from a wholly owned subsidiary of Seaspan Container Lines Limited ("SCLL") on September 15, 2005. The Brisbane is subject to a twelve year, fixed-rate charter with China Shipping (Group) Company ("China Shipping"). China Shipping will subcharter the vessel to its subsidiary China Shipping Container Lines Company, Limited or one of its other subsidiaries. The Brisbane was constructed and delivered by Samsung Heavy Industries Co. Ltd. ("Samsung") approximately four weeks ahead of the contractual delivery date.

Seaspan has been informed by SCLL that it has also received 30 Days Prior Notice from Samsung that the 13th vessel, the CP Kanha, a newly built 4250 TEU vessel and the first of the nine vessels subject to long-term, fixed-rate charters with CP USA, a subsidiary of CP Ships Limited, will be delivered on approximately October 18, 2005. The CP Kanha delivery would be approximately four weeks ahead of the contractual delivery date. Delivery is subject to completion of final sea trials, and absence of unforeseen circumstances.

Seaspan also announced today that the underwriters of its initial public offering, completed in August 2005, exercised a portion of their over-allotment option granted to them by Seaspan. As a result of the over-allotment exercise, Seaspan sold 276,500 of its shares and received $5,458,110 in net proceeds. An aggregate of 28,846,500 shares has now been sold in connection with the offering.

Seaspan's initial public offering was managed by Citigroup Global Markets Inc. and Merrill Lynch, Pierce, Fenner & Smith Incorporated, as joint book-running managers, and, together with Lehman Brothers Inc., UBS Securities LLC, Fortis Securities LLC, Legg Mason Wood Walker, Incorporated, Wachovia Capital Markets, LLC, DnB NOR Markets, Inc. and Dahlman Rose & Company, LLC, as co-managers for the offering. A copy of the final prospectus may be obtained from Citigroup Global Markets Inc., c/o Prospectus Department, 140 58th Street, Brooklyn, New York, 11220; fax: 718-765-6734; phone: 718-765-6732.

About Seaspan

Seaspan owns containerships and charters them pursuant to long-term fixed-rate charters. With the acquisition of the Brisbane, Seaspan currently owns a fleet of 12 containerships consisting of ten 4250 TEU vessels and two 8500 TEU vessels. Over approximately the next 24 months, Seaspan will acquire 11 additional vessels consisting of nine 4250 TEU vessels and two 9600 TEU vessels.

Seaspan's common shares are listed on the New York Stock Exchange under the symbol "SSW."

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

This release contains forward-looking statements (as defined in Section 21E of the Securities Exchange Act of 1934, as amended) which reflect management's current views with respect to certain future events and performance, including statements regarding: future acquisitions by Seaspan and other potential financial and other benefits relating to the charter contracts. The following factors are among those that could cause actual results to differ materially from the forward-looking statements, which involve risks and uncertainties, and that should be considered in evaluating any such statement; early termination or breach of one or more of the long-term charter contracts; changes in production of or demand for our vessels, either generally or in particular regions; potential breach of the newbuilding contracts by any of the parties, potential delays or non-delivery of the newbuildings; changes in applicable industry regulations; and other factors described from time to time in the reports filed by Seaspan with the SEC, including our Registration Statement on Form F-1, our Annual Report on Form 20-F, when filed, and our reports on Form 6-K.