Leighton Contractors has announced the signing of a key deal for its plan to build a 4,800 kilometre high-speed cable connection linking Perth and Singapore, and says the link will be operational by 2013.

Leighton Contractors has announced the signing of a key deal for its plan to build a 4,800 kilometre high-speed cable connection linking Perth and Singapore, and says the link will be operational by 2013.