The Central Bank of the Republic of China (Taiwan) Act Article 37

The Bank shall undertake the floatation, redemption and interest payment of central government bonds and treasury bills issued domestically or abroad. The Bank may delegate the above-mentioned business to other financial institutions, whenever necessary.
中文原文 中央銀行法第37條
本行經理中央政府國內外公債與國庫券之發售及還本付息業務;必要時得委託其他金融機構辦理。

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