All Six MIC Directors Reelected at Annual Meeting of Stockholders

NEW YORK–(BUSINESS WIRE)–Macquarie Infrastructure Corporation (NYSE: MIC) (ÔÇ£MICÔÇØ) today announced
that all six MIC director nominees were reelected to the Board of
Directors at the CompanyÔÇÖs 2018 Annual Meeting of Stockholders held
earlier today.

Commenting on the results, MIC issued the following statement:

The MIC Board and management team thank stockholders for their support
and the valuable feedback they provided through the proxy process. MIC
is committed to engaging constructively with its stockholders and
considering their input as the Company works to deliver long-term growth.

MIC is executing on its core priorities to build stockholder value and
improve financial performance. Led by new Chief Executive Officer,
Christopher Frost, this strategy includes repurposing a portion of
capacity and repositioning certain assets of International-Matex Tank
Terminals (IMTT), efficient portfolio and capital management and
increasing balance sheet strength and flexibility. With important
initiatives underway, a long-term track record of generating attractive
returns and a process underway to identify new independent directors,
MICÔÇÖs Board and management team are confident that MIC is on the right
path to reinvigorated growth and value creation.

Looking ahead, MICÔÇÖs management team will continue to regularly
communicate its strategy and progress against its core priorities in a
manner consistent with its long record of transparency.

The Company also announced that stockholders approved all of the other
proposals considered at the Annual Meeting, including the advisory vote
on executive compensation and the ratification of KPMG LLP as its
independent auditor.

MIC will file the voting results on a Form 8-K with the Securities and
Exchange Commission within four business days.

Forward-Looking Statements

This communication contains forward-looking statements. These
forward-looking statements are made as of the date hereof. We undertake
no obligation to publicly update or revise any forward-looking
statements subsequently as a result of new information, future events or
otherwise, except as required by law. Forward-looking statements are
subject to a number of risks and uncertainties, some of which are beyond
our control. Our actual results, performance, prospects or opportunities
could differ materially from those expressed in or implied by the
forward-looking statements. A description of known risks that could
cause our actual results to differ appears under the caption ÔÇ£Risk
FactorsÔÇØ in our Form 10-K filed with the SEC on February 21, 2018, our
Form 10-Q filed with the SEC on May 2, 2018, and other materials filed
with the SEC.

About MIC

MIC owns and operates a diversified group of businesses providing basic
services to customers primarily 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.

Contacts

Investor Enquiries:
Jay A. Davis, (212) 231-1825
Investor
Relations, MIC
or
Okapi Partners LLC
Bruce H. Goldfarb /
Patrick McHugh, (212) 297-0720
or
Media Enquiries:
Melissa
McNamara, (212) 231-1667
Corporate Communications, MIC
or
Joele
Frank, Wilkinson Brimmer Katcher
Dan Katcher / Nick Lamplough /
Mike Landau, (212) 355-4449