Rio Tinto Unveils Progress for Simandou Iron Ore Marvel

Simandou iron ore
Simandou iron oreImage Source: SteelGuru


Rio Tinto announces a $77 million investment in the Simandou iron ore project in Guinea, the world's largest untapped high-grade iron ore deposit. With estimated ore reserves supporting a 26-year mine life, Rio Tinto aims to contribute to steel industry decarbonization. The project involves a Chinalco-led consortium, furthering partnerships and economic development in Guinea. Simandou, a greenfield integrated mine, encompasses rail and port infrastructure, aiming to export up to 120 million metric tons annually. Rio Tinto's investment aligns with sustainability goals, with first ore production anticipated in 2025.


Rio Tinto, a global mining giant, is set to propel the Simandou iron ore project in Guinea with a $77 million pre-feasibility study. The Simandou project stands as the world's largest untapped high-grade iron ore deposit, with immense potential for the steel industry's decarbonization efforts.

Simandou's allure lies in its estimated Total Mineral Resource of 2.8 billion metric tons, boasting an average grade of 65.3% iron. In a strategic move, Rio Tinto is converting 1.5 billion metric tons to ore reserves, supporting a remarkable mine life of 26 years. The project also includes mineral resources, exclusive of ore reserves, totaling 1.4 billion metric tons at 66.1% Fe.

Rio Tinto's commitment involves an initial capital expenditure of approximately $6.2 billion for the Simfer mine's development and the co-developed rail and port infrastructure. The venture, a joint effort with Chinalco-led consortium CIOH, Winning Consortium Simandou (WCS), Baowu, and the Republic of Guinea, positions Simandou as a significant contributor to the global steel industry's evolution.

Simandou's significance extends beyond mining, with plans for over 600 kilometers of new multi-use rail and port facilities, shared equally between Simfer and WCS. This visionary move represents Africa's largest greenfield integrated mine and infrastructure investment, fostering economic development in Guinea.

Simfer and WCS, developing separate scopes of infrastructure, will transfer ownership to the Compagnie du Transguinéen (CTG) joint venture. With shared equity stakes, Simfer and WCS aim to optimize expertise in constructing rail lines, ports, and transhipment vessels, creating a seamless mining and export operation.

Anticipating first ore production in 2025, Simfer's ramp-up over 30 months is expected to reach an annualized capacity of 60 million metric tons. The venture plans to transition from a single fines product to a dual fines product, catering to blast furnace and direct reduction ore needs.

The investment forecasts a low double-digit internal rate of return (IRR) for Simfer mine and co-developed infrastructure through ownership of CTG. Rio Tinto's share of capital investment remaining after January 1, 2024, is projected to be $5.7 billion, with expected funding requirements for 2024 and 2025.

While Rio Tinto envisions the full sanction of the project, subject to board approval, certain conditions, including regulatory approvals from China and Guinea and joint venture partner consent, must be met. The project represents a strategic move toward sustainable mining practices and a significant stride in the global steel industry's transformation.


Rio Tinto's $77 million investment in the Simandou iron ore project signifies a transformative step toward sustainable mining and steel industry decarbonization. With vast high-grade reserves, visionary infrastructure plans, and shared development initiatives, Simandou promises to be a cornerstone for economic growth in Guinea and a key player in the global steel industry's evolution. As the venture progresses, Rio Tinto's commitment to responsible mining practices and collaboration with global partners positions Simandou as a model for future industry sustainability.

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