X0704 D LIVE 0001532707 AMPCI Macquarie Infrastructure Management No 1 Limited, AMPCI Macquarie Infrastructure Management No 2 Limited, & DUET Investment Holdings Ltd LEVEL 12, 1 MARTIN PLACE SYDNEY C3 AUSTRALIA 2000 (61)2-8232-4491 AUSTRALIA None None Business Trust true John Roberts Level 12, 1 Martin Place Sydney C3 AUSTRALIA 2000 Director Chairman Philip Garling Level 12, 1 Martin Place Sydney C3 AUSTRALIA 2000 Director Director of each issuer Michael Lee Level 12, 1 Martin Place Sydney C3 AUSTRALIA 2000 Director Director of AMPCI Macquarie Infrastructure Management No 1 Limited Doug Halley Level 12, 1 Martin Place Sydney C3 AUSTRALIA 2000 Director Director of AMPCI Macquarie Infrastructure Management No 1 Limited and DUET Investment Holdings Limited Emma Stein Level 12, 1 Martin Place Sydney C3 AUSTRALIA 2000 Director Director of AMPCI Macquarie Infrastructure Management No 1 Limited and DUET Investment Holdings Limited Ron Finlay Level 12, 1 Martin Place Sydney C3 AUSTRALIA 2000 Director Director of AMPCI Macquarie Infrastructure Management No 2 Limited and DUET Investment Holdings Limited Eric Goodwin Level 12, 1 Martin Place Sydney C3 AUSTRALIA 2000 Director Director of AMPCI Macquarie Infrastructure Management No 2 Limited Duncan Sutherland Level 12, 1 Martin Place Sydney C3 AUSTRALIA 2000 Director Director of AMPCI Macquarie Infrastructure Management No 2 Limited David Bartholomew Level 12, 1 Martin Place Sydney C3 AUSTRALIA 2000 Executive Officer Chief Executive Officer Christine Williams Level 12, 1 Martin Place Sydney C3 AUSTRALIA 2000 Executive Officer Company Secretary Leanne Pickering Level 12, 1 Martin Place Sydney C3 AUSTRALIA 2000 Executive Officer Company Secretary Other Decline to Disclose 06 3C 3C.7 false 2011-08-22 false true true DUET acquired an additional 20% interest in the Dampier Bunbury Pipeline and an additional 20.1% interest in Multinet, and selling its 25.9% interest in WA Gas Networks and the subordinated debt due from WA Gas Networks. 250000 Macquarie Capital (USA) Inc. 36368 Macquarie Capital (USA) Inc. 36368 125 West 55th Street New York NY NEW YORK 10019 CA CALIFORNIA MA MASSACHUSETTS MN MINNESOTA NY NEW YORK PA PENNSYLVANIA false 22530488 4144017 18386471 false 5 0 0 0 false AMPCI Macquarie Infrastructure Management No 1 Limited, AMPCI Macquarie Infrastructure Management No 2 Limited, & DUET Investment Holdings Ltd Christine Williams Christine Williams Company Secretary 2011-10-14