Macquarie Infrastructure Company Revised Conference Call Dial-in Details

Correct Dial-in Number (800) 289 0569

NEW YORK, March 23 -- Macquarie Infrastructure Company announced today that it has scheduled a conference call for 11:00 a.m. Eastern Time on March 23, 2005, to review the Company's results for the year ended December 31, 2004.

To listen to the conference call, please dial (800) 289-0569 (domestic) or (913) 981-5542 (international), at least 10 minutes before the scheduled start time. Investors can also access the earnings call slideshow presentation and the live call via the Internet at the Company's website at http://www.macquarie.com/mic . Please allow extra time prior to the call to visit the site and download the necessary software to listen to the Internet broadcast.

For interested individuals unable to join the conference call, a replay of the call will be available through March 30, 2005, at (888) 203-1112 (domestic) or (719) 457-0820 (international), (Passcode: 3840095). The online archive of the webcast will be available for one year following the call.

About Macquarie Infrastructure Company

MIC owns, operates and invests in a diversified group of infrastructure businesses, which provide basic, everyday services, in the United States and other developed countries. Its initial businesses and investments consist of an airport services business (Atlantic and AvPorts), an airport parking business (PCAA and Avistar) and a district energy business (Thermal Chicago and Northwind Aladdin), a 50% interest in the company that operates the Yorkshire Link Shadow toll road and investments in South East Water, a UK regulated water utility and in Macquarie Communications Infrastructure Group.