article in australian, page-4

Reggie, the Chinese have been sending some very clear and loud signals of what China is prepared to pay for African io assets even in a non competitive setting.

If the Chinese took up the other 60% of tonkolili at the same price for a 100% TO, then the cash proceeds would roughly equate to the sp if African minerals delists.

simandou is a better comparison (also valued by Chinese SOE chinalco) as it is a greenfield resource with a monster capex of $20B + where China has a minority stake at 45% and has no say in the development timeframe as Rio sat on it for years.

Guinea is also much riskier in terms of sovereign risks.

China values simandou at $7.2 billion (and has been telling the world she got the 45% on the cheap as Rio was about to be stripped of the tenaments.

Go figure.