)[4] On 13 July 2000 legislation was passed by the Parliament of Western Australia for the sale of AlintaGas, which listed on the Australian Stock Exchange (ASX) on 17 October 2000.

[5] Alinta acquired infrastructure assets and the Agility business from AGL through a combination of merger and demerger transactions on 25 October 2006.

[6] On 9 January 2007 Alinta announced that senior executives and the Chairman were working on a management buyout proposal, with Macquarie Bank as their advisor.

[7] As a result, the chief executive officer Bob Browning resigned on 11 January 2007, and the company was clearly for sale to the highest bidder.

Alinta was acquired on 31 August 2007 by a consortium comprising Singapore Power International (SPI), the largest utility company in Singapore, and Australia's second-largest investment bank, Babcock & Brown Infrastructure (BBI) and Babcock & Brown Power (BBP)[8] with a bid of A$13.9 billion, beating out a rival bid by Macquarie Bank.