Hi Pikapika, I made an observation of the IO daily spot price graph from early November (roughly when Cameroon took over the controls in driving the mine equity / funding process).
You can use the following link and plug in whatever timeframes.
https://www.quandl.com/data/WSJ/FE_TJN-Iron-Ore-62-Fe-CFR-China
I think the IO spot price behaviour may possibly have some relationship with Mbalam-Nabeba given China's past practice in using destocking to induce extreme price volatility as a negotiation and intimidation tool.
Whether in this instance it was more to do with deterring or discouraging an 1th hour "unfriendly" re-emergence of the Friendly Countries, we can only tell with hindsight.
After dropping rapidly to a reaching a gut wrenching $37/T, the spot price has since recovered above $40/T over the last 8 sessions. Not a big turnaround by any means but the significance may be in the direction.
Perhaps the Chinese are now quite comfortable that they "will" secure their equity stake in Mbalam-Nabeba beyond doubt. If so, the Cameroon government may have already made advanced progress towards an outcome.
