It's really very simple. Someone invests in this new class of preferred. Based on the number of shares of that preferred that they hold, they share in a percentage of the $200 paid out each month per pound of harvest. Period.
They cannot convert these shares and they can't really do anything with them at all...ever. It appears to be an exchange of one thing for another. The company gets expansion cash and the holders of these new preferred shares receive $200 per harvest each month dispersed among the holders of this class of shares...period.
They cannot ever convert them to common. A long term way of financing the company without adding any debt.