Company Act Article 247

The total amount of corporate bonds of a public company shall not exceed the net remainder of all assets in hands of the company after deducting all liabilities.The total amount of unsecured corporate bonds shall not exceed one-half of the aforesaid net remainder.
中文原文 公司法第247條
公開發行股票公司之公司債總額,不得逾公司現有全部資產減去全部負債後之餘額。
無擔保公司債之總額,不得逾前項餘額二分之一。

English translation for reference only; the Chinese text prevails. Not legal advice.