CK Infrastructure (CKI) is a diversified infrastructure company with a market capitalisation of HK $170 billion (£16.7 billion) and operations that span the globe. CKI is a key member of the CK Hutchison Group, which is one of the largest conglomerate groups in the world.
Power Assets Holdings Limited is a global investor in energy and utility-related businesses with investments in electricity generation, transmission and distribution; renewable energy; energy from waste; gas distribution and oil transmission.
24 August 1986
Assets of British Gas Corporation transferred to British Gas plc (integrated gas company for UK).
1 February 1997
The shareholders of British Gas plc approved the demerger of Centrica plc. British Gas plc was renamed BG plc.
1 December 1999
BG plc completed a financial restructuring which resulted in the creation of a new parent company, BG Group plc.
23 October 2000
BG Group plc completed the demerger of Lattice Group plc creating two separate companies.
21 October 2002
National Grid plc merged with Lattice Group plc to form National Grid Transco plc.
1 June 2005
Northern Gas Networks acquired by CK Infrastructure (formerly Cheung Kong Infrastructure) when National Grid Transco sold four networks including Northern Gas Networks, SGN and Wales and West Utilities. National Grid Transco become National Grid.