Explosive demolition work at the plant last week helped clear the way for the state-of-the-art four storey facility, which has been designed by Michael Laird Architects.

Sections of the 1,700 acre site will be offered to other businesses, in order to create a manufacturing hub as part of a £450m investment in the plant.

Ineos UK chief executive John McNally said: “We will make parts of our site available to new companies that will benefit from the services and infrastructure that we have to offer here at Grangemouth.

“We have a clear strategic view of the future, where Grangemouth is a growing centre of excellence, attracting new investment, creating new jobs and providing Scotland with the raw materials that it needs to support its manufacturing sector.”

The new head office is expected to complete in September next year.