Well in my opinion if the "transition to a developer" is to be believed, then getting this online within the bull cycle is paramount, thus a timeline should be given.
Even from this very report, they speak about the global tin market supply issues and subsequent price gain.
Late 2023 roughly $24,000/t = $1,868,880,000 (based on 77.87kt)
Today at $35,675/t and growing = $2,778,012,250 (based on 77.87kt)
Almost 1 billion dollars more, in less the half a year, as you say absolutely cents to the end user in there solder, but a big difference down at mine level IMO.
If your feeling was that the Tin price was going to be above $50,60,70K/t in say 3-4 years time, you'd really want to get cracking on getting this thing up and running.
It is worthless in the ground, unless they are waiting for at takeover as I mentioned as the other strategy potentially at play.
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