The firm is expected to unveil the details of its plan this week.

DSM  is expected to propose creating around 200 oil platform  decommissioning jobs within one to three years. It would  also promote the vast site to lease to renewables manufacturers.

It envisages that there would be 1,000 workers at Nigg within between five and 10 years.

In the heyday of the 70s North Sea oil boom the Nigg yard was the cornerstone of the oil platform construction industry and employed 5,000.

The firm has been waiting in the wings trying to gain control of the offshore fabrication yard several years.

DSM has bought 800 acres of land adjacent to the yard from Dow Chemicals for just over £2m and is understood to be in advanced talks to buy out majority shipyard owner KBR to merge the sites.

DSM plans to spend £10m upgrading the site for renewables manufacturing and decommissioning ships and oil rigs.

Three weeks ago, the local KBR management and local authorities  believed they were close to a £30m deal which would see Nigg transformed into an offshore wind turbines building facility.

But senior management at the Texas-based group rejected the plan as a move away from the core business activity.

The plan is complicated by the ­Wakelyn Trust’s ownership of a third of the yard, including the all-important dock area, which it leases to KBR.While KBR now looks very likely to sell its interest, Wakelyn’s position is far less certain. A compulsory purchase order (CPO) might be needed to unify the site.