[Seaspan Corporation nd Unit 2, 2 141 Connaught Road West Hong Kong, China c/o 2600 – 200 Granville Street Vancouver, BC Canada V6C 1S4 Tel: 604-638-2575 Fax: 604-648-9782 www.seaspancorp.com Seaspan Announces Public Offering of Series G Cumulative Redeemable Perpetual Preferred Shares Led by ICBC International ICBC International Securities Limited (“ICBC International”), a wholly owned subsidiary of the Industry and Commercial] [Item 1 — Information Contained in this Form 6-K Report SEASPAN CORPORATION David Spivak Chief Financial Officer (Principal Financial and Accounting Officer) 6-K 1 d228668d6k.htm FORM 6-K]

[SEASPAN CORPORATION 9,000,000 Shares 7.875% Series H Cumulative Redeemable Perpetual Preferred Shares ($0.01 par value per share, liquidation preference $25.00 per share) Plus an option to purchase from the Company up to 1,350,000 additional Shares Underwriting Agreement New York, New York August 4, 2016 Merrill Lynch, Pierce, Fenner & Smith Incorporated One Bryant Park New York, New York 10036 Morgan] [REEDER & SIMPSON PC ATTORNEYS AT LAW P.O. Box 601 Telephone: 011-692-625-3602 RRE Commercial Center Email: dreeder@ntamar.net Majuro, MH 96960 r.simpson@simpson.gr August 11, 2016 Seaspan Corporation Unit 2, 2nd Floor, Bupa Centre 141 Connaught Road West Hong Kong, China Re: Seaspan Corporation Ladies and Gentlemen: RMI Corporation Preliminary Prospectus Prospectus Registration Statement Shares We have acted as Republic of the] [August 11, 2016 Seaspan Corporation Unit 2, 2nd Floor Bupa Centre 141 Connaught Road West Hong Kong China Re: Seaspan Corporation Registration Statement on Form F-3 Ladies and Gentlemen: In addition, we have assumed, with your permission, (i) that the statements and representations concerning the Company and its operations contained in the Registration Statement, and the statements and representations contained] [REEDER & SIMPSON, P.C. ATTORNEYS AT LAW P.O. Box 601 Telephone: +692-625-3602 RRE Commercial Center Email: dreeder@ntamar.net Majuro, MH 96960 r.simpson@simpson.gr August 11, 2016 Seaspan Corporation Unit 2, 2nd Floor, Bupa Centre 141 Connaught Road West Hong Kong, China Re: Seaspan Corporation Ladies and Gentlemen: RMI Corporation Preliminary Prospectus Prospectus Registration Statement Shares We have acted as Republic of the] [August 11, 2016 Seaspan Corporation Unit 2, 2nd Floor, Bupa Centre 141 Connaught Road West Hong Kong, China Dear Sirs/Mesdames: Re: Seaspan Corporation – Prospectus Supplement Company Prospectus Supplement We have acted as Canadian tax counsel to Seaspan Corporation (the “ Discussion All statements of legal conclusions contained in the Discussion, unless otherwise noted, in our opinion are correct and] [THIS REPORT ON FORM 6-K IS HEREBY INCORPORATED BY REFERENCE INTO THE FOLLOWING REGISTRATION STATEMENT OF THE COMPANY: • REGISTRATION STATEMENT ON FORM F-3 (FILE NO. 333-211545) ORIGINALLY FILED WITH THE SEC ON May 23, 2016. 1.1 Underwriting Agreement 5.1 Opinion of Reeder & Simpson, P.C., Marshall Islands counsel to Seaspan Corporation 8.1 8.2 Opinion of Reeder & Simpson, P.C.,]

[Seaspan Corporation nd Unit 2, 2 141 Connaught Road West Hong Kong, China c/o 2600 — 200 Granville Street Vancouver, BC Canada V6C 1S4 Tel: 604-638-2575 Fax: 604-648-9782 www.seaspancorp.com Seaspan Announces Closing of $225 Million Public Offering of 7.875% Series H Cumulative Redeemable Perpetual Preferred Shares HONG KONG, CHINA, August 11, 2016 — Seaspan Corporation (“Seaspan”) (NYSE:SSW) announced today that] [Item 1 — Information Contained in this Form 6-K Report SEASPAN CORPORATION David Spivak Chief Financial Officer (Principal Financial and Accounting Officer) 6-K 1 d238007d6k.htm FORM 6-K]