A RAIL link between Babcock Rosyth and the main network could be reinstated under new plans.
Work is at a "very early stage" but the move is part of Forth Port's commitment to be carbon neutral within the next decade.
It would see all three landowners at the Forth Green Freeport - Babcock International, Forth Ports Group and the Scarborough Muir Group - connected to the rail line.
A spokesperson for the consortium said "exploratory work" is taking place, with reports due back within the next few months.
They said: "The Forth Green Freeport aims to boost innovation and inclusive growth within the Forth corridor while supporting Fair Work First practices, creating new green jobs, upholding the highest environmental protections and supporting economic transformation.
"Working groups have been established to examine a range of options to achieve these objectives, including the reopening of the rail link between Babcock Rosyth and the main rail network, connecting the land owned by all three land owners within the Rosyth Green Freeport site.
"This exploratory work is at a very early stage and the working groups will report back in the next few months."
A successful bid for the Forth to be included as one of Scotland's first green freeports was confirmed in January, with Rosyth at its heart.
The project promises to create 50,000 new jobs and generate £6 billion of investment.
Forth Ports has committed its operations to be carbon neutral by 2023 and Net Zero by 2042.
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