If you read clause 15.1 carefully, and I've been guilty of not doing so in the past, it actually says within 60 days of feasibility Teck has to deliver to CUU a definitive option joint venture agreement for review. They then have to use their best efforts to settle in good faith an agreement to replace this current one. There is apparently a non-specific time in which the agreement is to replace the current one.
I think we'll get an offer or a decision from Teck easily within that period of time. They have had plenty of time now to make up their minds. I would assume they wanted to be able to discuss the details with potential partners or funding providers and that's why they wanted the information published.