SimFer, the joint venture between the Government of Guinea, Rio Tinto and the Chinalco-led CIOH consortium, published its Q2 2026 progress update on June 4. The numbers are operational, not promotional. They tell a story of a project that has moved from construction milestones into continuous execution, while still carrying a significant gap between current output and its stated target.
The headline figures: 0.6 million tonnes of iron ore shipped in Q1 2026, the 70km SimFer rail spur fully commissioned in Q1, the SimFer port at 78% completion as of end of March, and the mine site itself at approximately 74%. Port commissioning is expected in Q1 2027. The target of 60 million tonnes per year of annual capacity is now officially set for H2 2028, a 30-month ramp-up window from current operational pace.
The logistics chain is functioning. Ore moves by rail from the SimFer mine to the main trans-Guinean line via the now-operational spur, then ships through the WCS port while the SimFer port completes construction. The first cargo left Guinea in December 2025. The first full shipment reached China in March 2026. Three ship loaders have arrived at Morebaya. The sequence is real.
What the numbers also reveal is the distance still to cover. At 0.6Mt for Q1, the annualized run rate sits well below 60Mt. The port, the primary infrastructure constraint, will not be operational until early 2027. The mine site, at 74% completion, is still under construction. SimFer CEO Chris Aitchison framed the shift clearly: the project is moving from hitting milestones to sustained operational execution. That is a meaningful distinction. Milestones are binary. Execution is about consistency and volume.
The 77% local workforce figure is the other data point worth reading carefully. It reflects a deliberate localization policy, but it also carries an operational implication: Guinea is building technical capacity inside the project in real time. The long-term question for Simandou 2040 is whether that capacity stays in the country once the construction phase ends.
One incident shadowed the Q2 update. Rio Tinto confirmed the death of a contractor employee at the SimFer port site. A Safety Advisory Panel, established in 2026 with six external advisors, is now providing independent oversight of fatality risk management across mine and port operations. The panel’s existence signals that SimFer is aware of the safety exposure that comes with running simultaneous construction and early operations at this scale.
What to watch: the port commissioning timeline in Q1 2027 is the critical variable. It determines when SimFer can stop routing through WCS infrastructure and begin controlling its own export chain. Until then, the ramp-up remains constrained by shared logistics. The Q3 update will be the first real test of whether the 60Mt trajectory is holding.