MIC Manager Notifies MIC That It Intends to Acquire Additional Shares

Macquarie Infrastructure Corporation (NYSE:MIC) announced that Macquarie Infrastructure Management (USA) Inc. (MIMUSA), a subsidiary of Macquarie Group Limited and the Manager of MIC, has notified MIC that it intends to acquire additional MIC shares via open market purchases. Share purchases are subject to receipt of Hart-Scott-Rodino clearance and market conditions. MIMUSA expects clearance to be received on or about April 8, 2018.

MIMUSA currently owns approximately 5.5 million or 6.6% of MIC's shares outstanding. As required by law, MIMUSA will report purchases on Form 4 and Schedule 13D filings with the Securities and Exchange Commission. Accordingly, MIMUSA does not plan to provide any further update to the market.

About MIC

MIC owns and operates a diversified group of businesses providing basic services to customers in the United States. Its businesses consist of a bulk liquid terminals business, International-Matex Tank Terminals, an airport services business, Atlantic Aviation, entities comprising an energy services, production and distribution segment, MIC Hawaii, and entities comprising a Contracted Power segment. For additional information, please visit the MIC website at www.macquarie.com/mic. MIC-G

MIC is not an authorized deposit-taking institution for the purposes of the Banking Act 1959 (Commonwealth of Australia). The obligations of MIC do not represent deposits or other liabilities of Macquarie Bank Limited ABN 46 008 583 542 (MBL). MBL does not guarantee or otherwise provide assurance in respect of the obligations of MIC.