Rio Tinto has invested $230m to expand its Parker Point facility at Dampier Port in Pilbara, Australia, the company has announced.
Once complete, the expansion work will enable Rio to load five million additional tons of iron ore per year, taking Pilbara's annual capacity to 230 million tons by Q1, 2012.
The news follows the firm's $91m investment earlier this year, which will take the region's ship-loading capacity to 225 million tons of iron ore per year by 2011.
Rio Tinto chief executive, iron ore and Australia, Sam Walsh said: "This incremental capacity will add substantial value and will position our integrated Pilbara operations well as we finalise plans on how best to move to a 330 million tons per year capacity and beyond."
A feasibility study is underway for the expansion of Rio's Cape Lambert port, also in Pilbara.
Completion of the project will take the region's annual iron ore capacity to 280 million tons by Q2, 2013.