TORTOISE ENERGY INFRASTRUCTURE CORPORATION (a Maryland Corporation) 2,750,000 Shares of Common Stock Par Value $0.001 Per Share UNDERWRITING AGREEMENT January 21, 2010Underwriting Agreement • January 22nd, 2010 • Tortoise Energy Infrastructure Corp • New York
Tortoise Energy Infrastructure Corporation, a Maryland corporation (the “FUND”), and the Fund’s investment adviser, Tortoise Capital Advisors, LLC, a Delaware limited liability company (the “ADVISER”), each confirms its agreement with UBS Securities LLC and each of the other Underwriters named in Schedule A hereto (collectively, the “UNDERWRITERS”), for whom UBS Securities LLC and Merrill Lynch, Pierce, Fenner & Smith Incorporated are acting as Representatives (in such capacity, the “REPRESENTATIVES”), with respect to the issue and sale by the Fund and the purchase by the Underwriters, acting severally and not jointly, of the respective number of shares of common stock, par value $0.001 per share, of the Fund (“COMMON SHARES”) set forth in Schedule A hereof (collectively, the “PRIMARY SHARES”), and with respect to the grant by the Fund to the Underwriters, acting severally and not jointly, of the option described in Section 2(b) hereof to purchase all or any part of 412,500 additional
