It is certainly oversold on a technical basis. Whether or not it is a good buy depends on the fundamentals of the potash market. If potash demand comes back and looks like it will start to outstrip supply, this potash will be mined and shareholders will make a ton of money. If not, not.
Hard to say what the market price will do in the short term. I look for no positive motivating news for five months or so. If you don't want to hold long term, I would say stay away. If you have patience, I would say it is a reasonable speculation and could turn into a monster in three to five years.
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