+1 for the mining company.

Perhaps a vote would be in order. With rules along the lines of converting to a mining company if you have a two thirds majority of voting shares (i.e. count the shares of the voter, not the vote itself). I think major decisions like this should require more than a simple majority.

If the motion passes, persons that choose to opt out should be entitled to a penalty-free refund since the terms of the agreement would have changed.