As far as I can tell this was the last statement on the QB2 project: "Teck is in the process of reviewing comments by the regulators, after which the application will be resubmitted" From a BofA document: "We understand Chilean regulators want to obtain more information on hydrology and vegetation in the project area, and go on to say that, financing options are under consideration with the potential for an additional funding partner." It looks like they are still planning on going forward with QB2, but maybe they are looking to dilute their ownership.

I had a short email from Teck investor relations and was told: "We wouldn't consider our decisions to exercise our back in rights on our exploration ventures as acquisitions." This might be the reference that you were looking for earlier, Skibum

[Here's a quick summary of the project: QB2 capex is estimated at $5.6 bn (100% basis) including 13% in contingencies. The project's base case metrics include: 135 ktpd throughput, 200 ktpa copper production (0.49% grade), 5 ktpa moly production (0.018% grade) at $1.38/lb C1 cash costs]