**Exhibit      10.5**

**LETTER      AGREEMENT**

|   | a) | such                dividend is permitted by the terms of the financing agreements of                the                Company and by applicable law; |
|--------|----|--------------------------------------------------------------------------------------------------------------------------------------------------------|

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|   | b) | the                payment of the dividend would not result in the Company retaining                insufficient reserves of cash, cash equivalents and/or committed                and                unutilized credit facilities to enable the Company to meet the normal                requirements of its business and to fund Capital Expenditure previously                approved by the Board; |
|--------|----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | c) | Section                4(d) and 4(e) of the Shareholders’Agreement. |
|--------|----|---------------------------------------------------------------------------|

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|         |                                        |                                    |
|--------------|---------------------------------------------|-----------------------------------------|
|         | **IMTT              HOLDINGS INC.**         |
|    |                                   |                               |
|              | By:                               | /s/ Thomas              B. Coleman |
|         | Name:              THOMAS B. COLEMAN        |
|         | Title:              CHIEF EXECUTIVE OFFICER |

|         |                                               |                                                                                                                              |
|--------------|----------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------|
|         | **SHAREHOLDERS:**                             |
|         |                                               |
|         | **MACQUARIE                TERMINAL HOLDINGS LLC** |
|    |  By:                                     |  Macquarie                  Infrastructure Company Inc. (d/b/a Macquarie                  Infrastructure Company (US))  |
|         |                                               |                                                                                                                              |
|              | By:                                      | /s/ Peter                Stokes                                                                                              |
|         | Name:                PETER STOKES                  |
|         | Title:                CHIEF EXECUTIVE OFFICER      |

|         |                                                                                                                                                      |                                        |
|--------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------|
|         | **CURRENT                    BENEFICIAL SHAREHOLDERS ARE****HEREIN                    REPRESENTED BY:**                                                   |
|         |                                                                                                                                                      |
|         | JAMES J. COLEMAN JR., THOMAS B. COLEMAN AND JAMES OWEN COLEMAN, TRUSTEES OF VOTING TRUST AGREEMENT DATED MAY 2, 2006AS AMENDED ON JANUARY 11, 2007.  |
|    |                                                                                                                                                 |                                   |
|              | By:                                                                                                                                             | /s/ Thomas                  B. Coleman |
|         | THOMAS                  B. COLEMAN, TRUSTEE                                                                                                               |

|   |
|--------|
|   |                                             |                                          |
|--------|--------------------------------------------------|-----------------------------------------------|
|        | By:                                    | /s/                    James J. Coleman  |
|   | JAMES                    J. COLEMAN JR., TRUSTEE |
|   |
|--------|
|   |                                                            |                                          |
|--------|-----------------------------------------------------------------|-----------------------------------------------|
|        | By:                                                   | /s/                    James O. Coleman  |
|   | JAMES                    O. COLEMAN,                    TRUSTEE |

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**Schedule      1**

**THIS      SCHEDULE IS BASED UPON THE ISSUANCE OF**

**$215      MILLION OF GO ZONE BONDS**

*increased*

|  | · | All                Fiscal Quarters in 2009: $3,400,000 increase per Fiscal                Quarter  |
|--|--------|---------------------------------------------------------------------------------------------------------|

|  | · | All                Fiscal Quarters in 2010: $1,300,000 increase per Fiscal                Quarter  |
|--|--------|---------------------------------------------------------------------------------------------------------|

*decreased*

|  | · | All                Fiscal Quarters in 2011: $300,000 decrease per Fiscal Quarter   |
|--|--------|----------------------------------------------------------------------------------------------|

|  | · | All                Fiscal Quarters in 2012: $600,000 decrease per Fiscal Quarter   |
|--|--------|----------------------------------------------------------------------------------------------|

|  | · | All                Fiscal Quarters in 2013: $1,100,000 decrease per Fiscal                Quarter  |
|--|--------|---------------------------------------------------------------------------------------------------------|

|  | · | All                Fiscal Quarters in 2014: $1,600,000 decrease per Fiscal                Quarter  |
|--|--------|---------------------------------------------------------------------------------------------------------|

|  | · | First                two Fiscal Quarters in 2015: $1,600,000 decrease per Fiscal                Quarter  |
|--|--------|---------------------------------------------------------------------------------------------------------------|

|   | · | Fiscal                Quarter ended September 30, 2015: $1,200,000                decrease. |
|--------|--------|---------------------------------------------------------------------------------------------|

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