[EXECUTION VERSION Second Supplemental Indenture Company Trustee This SECOND SUPPLEMENTAL INDENTURE (this “ RECITALS Base Indenture WHEREAS, the Company and the Trustee have heretofore executed and delivered an indenture, dated as of October 10, 2017 (the “ WHEREAS, Sections 2.1, 3.1 and 9.1 of the B]

[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 Enters Into Definitive Agreements for $250 Million Unsecured 5.50% Debenture st David Sokol, Chairman]

[Form 6-K Report Item 1 — Information Contained in this As previously disclosed, Seaspan Corporation (the “Company”) entered into an employment agreement with Bing Chen on October 28, 2017, providing for Mr. Chen to serve as President and Chief Executive Officer of the Company beginning in January 20]

[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 Letter of Intent for Potential $250 Million Unsecured 5.50% Debenture David Sokol, Chairman]