Maybe, and it is believable but it is also a massive leap of faith in strangers because he can't give you the inside scoop. So you didn't really get any info and they can do a nr tomorrow saying the plant takes more catalyst than expected so it is dead.
Institutions get stuck with failed investments all the time, so that doesn't prove anything either, except they got a plant tour and probably watched some catalyst do its job on a small scale.
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