Anglo American poly 4 wordsmith mine

Hey everyone, 1st post. Very early beginner.

Last year I saw a video about the Anglo american poly4 woodsmith mine in whitby, the mineral will quadruple food growth and with a growing population it seemed like a good investment and the mine is built with trade routes already planned etc.

So I started small, 2 shares. Then they announced they will be reducing mining on less profitable minerals to focus on their woodsmith mine and this was a month or 2 so before the crash.

Then I read they're looking for a partner for the mine and I haven't followed it much since then.

I'm trying to figure out what I missed with this stock because it seemed to tick all the right boxes?.

What we're your thoughts on the mine, the stock fall etc.

Thanks