They recently raised $100k which seems to be enough for the...

They recently raised $100k which seems to be enough for the company to make the necessary regulatory progress and to finalize the deals that are being made with off take companies, the harbour, etc. 
You'd rather have had them raise more money and dilute the company more?
I agree with you on the key person risk, but since I believe the company is close to completion of all deals, I don't think this is a huge risk.
Market conditions are sufficiently good that even in the case something bad happens to management, the company will still be able to finalize the deals. Non-Chinese consumers of magnesium carbonate and the various processed magnesium types want safety of supply, something which the Chinese have been unable to provide them with since their closure of magnesium mines and processing plants in China for environmental reasons.
The company also has the ability to get loans worth a total of 678k, so I am not worried about their financial situation at all.