One question was that of hidden debts beyond the $6.6 billion Hynix is known to have accumulated.

On Oct. 7, the Friday before the company's disclosure about the hidden debt, the shares closed at $28.56.

So they have rigorous rules in place to prevent hidden debts from accumulating and exploding the way they did at Enron.

Did you know when you marry a man you'll also be marrying his hidden debts?

The government has reportedly agreed to guarantee less than half the hidden debt of the three companies.

The argument over hidden debts was partly responsible for the failure to complete negotiations before the end of the year, as originally planned.

Here are the hidden debts that are deliberately excluded from the calculations.

In the Korea First case, the government agreed to commit $1.4 billion in public funds to cover the hidden debts.

The figure was larger than expected and prompted skittish investors to ask whether other China-related companies had huge, hidden debts.

The disclosure of the hidden debts sent Refco into a tailspin a year ago.