Distribution for the Half Year Ending 31 December 2005 - Relevant Dates Distribution and Dividend Reinvestment Plan Trust Constitution Amendments

15 December 2005

Macquarie Infrastructure Group (MIG) today announced a distribution of 10.0 cents per stapled security for the half year ending 31 December 2005, in line with guidance confirmed at the recent Annual General Meeting. The relevant dates in relation to this distribution are as follows:

It is expected that the distribution will comprise a partly franked Australian dividend. Indicatively, the distribution will be 18.9% franked. The franking rate is subject to confirmation following review by the auditors.

MIG does not give tax advice and recommends that all security holders obtain their own tax advice in relation to the distribution.

A Distribution and Dividend Reinvestment Plan (“DRP”) is in operation for this distribution. A 2.5% discount will be applied.

Notice in relation to election to participate in the plan must be lodged with the Share Registry at Computershare Investor Services Pty Limited by 31 December 2005. Only investors with Australian and New Zealand registered addresses are eligible to participate in the DRP. Eligible existing investors will receive an election form in the mail shortly and additional forms can be obtained by contacting Computershare Investor Services on 1800 000 982.

Changes to Trust Constitutions and DRP Terms

Amendments have been made to the constitutions of Macquarie Infrastructure Trust (I) and Macquarie Infrastructure Trust (II) and the terms of the DRP. These amendments are effective immediately and will apply in relation to the distribution for the half year ending 31 December 2005.

The purposes of the changes are to:

• Provide greater flexibility in the management of the DRP;
• Enable, at MIG’s discretion, DRP participation to be fulfilled by sourcing securities on-market, rather than allotting new securities; and
• Move the pricing period closer to the allotment or transfer date of securities provided under the DRP.

The supplemental deeds giving effect to the amendments are attached, together with a letter to investors notifying the changes as well as the revised DRP booklet. The letter and the revised DRP booklet will be mailed to eligible investors shortly.

For further information contact:

Investor Enquiries
Peter Johnston
Head of Investor Relations
Mobile: (61) 413 994055
Email: peter.johnston@macquarie.com

Media Enquiries
Jane Rotsey
Public Affairs Manager
Mobile: (61) 401 997 160
Email: jane.rotsey@macquarie.com

Bianca Francis
Investor Relations Manager
Mobile: (61) 413 279 523
Email: bianca.francis@macquarie.com