Financial terms of the deal were not disclosed.
The project will initially ramp up to 2 million tonnes a year, while Fortescue determines how much larger it could get, Otranto said. The Belinga deposit, which Fortescue has been assessing since 2018, could rival Guinea's giant Simandou deposit for scale and quality, he added.
"That's why we are here, that's why we are spending the capital," he told Reuters.
Fortescue said that the costs involved for the early-stage mining development would be about $200 million over calendar 2023-2024 period. The deal governs all legal, fiscal and regulatory regimes
Iron ore will be trucked and railed over existing roads and rail infrastructure, and will be shipped from the Owendo Mineral Port, near Libreville, the company said.
Ivindo Iron SA will be the operator with a 90% stake in the project. Fortescue is taking an 80% stake in Ivindo Iron while the African Transformation and Industrialization Fund will take a 20% stake. The government of Gabon will have the remaining 10% stake in the project. (Reporting by Jaskiran Singh in Bengaluru; Editing by Shailesh Kuber and Nivedita Bhattacharjee)