Australian Industrial Energy (AIE) - the group behind the terminal - announced on Monday the successful consortium will build the wharf facility and gas pipeline.

The SCSB consortium is made up of two multinationals - Spiecapag and Soletanch Bachy.

The pipeline will run six kilometres from the wharfside to the eastern gas connection point, just to the east of the Springhill Road-Five Islands Road intersection.

The construction will require subcontracted experts in demolition, concreting, welding, electrical works and traffic management.

A statement from AIE said approximately $76 million of that subcontracting work would go to local businesses.

Information sessions outlining opportunities for local businesses will take place over the coming months.

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The work will not begin until AIE has made the "final investment decision" - when it has signed up enough gas purchasers to make the project financially viable.

That decision is expected to be made later this year and the gas terminal to be completed and operational by late in 2020.

"We're very pleased to be working on such a strategically important project for NSW," said Spiecapag's manager director John Walsh.

"Part of our DNA is to work with local businesses, and we look forward to exploring opportunities for local contractors to also play a part in Australia's first ever LNG import terminal once we start construction in the second half of the year."