I'll bite on this.

QB2 13.5% interest sold to Teck for $262.5 million USD. $1.944 billion @100%

QB2 based on FS. (https://www.miningdataonline.com/reports/Quebrada%20Blanca%20Phase%202_FS_02032017.pdf)

Life of mine copper equivalent production: 6.4 million tonnes or ~14.1 billion pounds of copper equiv.

buyout is at 13.5 cents per pound of copper equiv.

end up selling to Sumomito for 1.2 billion.  ($4 billion 100%).

28 cents per lb of copper equiv.

Total mine life revenue for 1256 million tonnes of ore at $37 billion.

Schaft Creek

(https://www.teck.com/media/Project-Satellite-Asset-Descriptions.pdf)

5.43 million tonnes of copper equiv. ~12 billion pounds of copper.

Total mine life of mining 940 million tonnes of ore $23 billion in revenue.

So based on Teck's way of handling QB2.

We're in the range of buying out the minority price to selling to 3rd party price. Agreed?

Somewhere between 13 cents to 28 cents? (12 billion pounds of copper x 25% is 3 billion)

$405 million to $840 million USD. ($526 million to $1092 million CAD after 30%).

This does not account for what the optimized value is for SC. 

Does not include the carried interest value.

Also good to look at that QB2 is using 300 million tonnes more of ore than SC to this valuation.

Lots of numbers that can be played with I feel.  That's why it's important for this report to finish and we know value.

Man congrats to whoever bought it at half a cent!