AGC has completed its contracts for Chevron Corporation's megaproject and has no further tasks for the workers now that the resources boom is winding down.

AGC has been fabricating subsea items for Gorgon at its workshop south of Perth, but after 18 months that work has been completed and there is no further work on the horizon.

A further 250 jobs are on the chopping block after Christmas if the company does not secure replacement contracts for those workers completing tasks for Chevron's other major Western Australian LNG development, Wheatstone LNG, near the town of Onslow.

However, it is not all glum news.

In October AGC entered into a joint venture with Japan's Meisei Industrial and secured an $A197 million contract for painting, surface protection, fireproofing and insulation works for lead contractor JKC on the Ichthys LNG project near Darwin, in the Northern Territory.

Work is expected to commence in March 2015 and will continue until December 2016. It was the second major Ichthys contract to be awarded to AGC.

With the award of this contract AusGroup's order book stands at AU$480 million.

The Australian Manufacturing Workers Union has criticised the Barnett state government for squandering the benefits of the boom and argues that workers and apprentices face a bleak future because the government failed to plan for the construction slowdown.

AGC's parent, AusGroup, provides a range of asset maintenance, fabrication and manufacturing and construction services to the natural resource sectors across Australia and Asia.