GE will supply a range of equipment and services for the 8.4 million tonne per annum project including gas turbines and compressors.
The company will also supply subsea production systems for the offshore portion of the project as well as subsea connectors for an 889km pipeline that will carry gas produced from a central processing facility in the Browse Basin, offshore Western Australia, to the LNG plant at Blaydin Point, Darwin.
The equipment will be shipped by 2014 while first production from Ichthys is due to start by the end of 2016.
GE Oil & Gas chief executive officer Dan Heintzelman said the company's growing commitment to the LNG industry in Australia was one of the key factors in winning the contracts.
Meanwhile GE has also completed tests on the first of three LNG compressor trains for Chevron's Gorgon LNG project ahead of schedule.
Performance and full load tests on the mixed refrigerant and propane LNG compressor trains were carried out at GE's facility in Italy.
"The tests were carried out as planned and the units met all the contractual requirements and acceptance criteria," GE Oil & Gas general manager Riccardo Procacci said.
"Everything went smoothly with no issues. The test was completed four months ahead of contractual delivery date of the units and the compressor performance exceeded our expectations."
The LNG compressor tests follow GE's testing in August of the first of six carbon dioxide reinjection trains also being developed for Gorgon.
In the past two years, GE has secured more than $US1 billion in contracts to supply compressor trains, generators, compressor reinjection trains, subsea equipment and services for Gorgon.
In other news GE has also signed an agreement to supply compressors and associated services for Shell's projects worldwide over the next six years.
The compressors and services will be used for Shell's projects in Australia, west Africa, Russia, the Caspian region and Canada.