Maybe you should read the terms of the loan. Look at the default interest, the daily penalty amount if paid after 180 days. Then look at when HJOE's revenues started ramping such as the date of the first shipment to Korea, and the date the agreement was signed with SMS and sales of dealerships etc.

Then just maybe you'll understand that paying the loan off in cash after they had the money to do so would have been a ridiculous amount to pay.