Regulations of the Land Registration Article 116-1

The application of registration for change of order of regular mortgage right against the same collateral due to transfer of order shall be applied for by the successor of the said order and the order-transferring party. The application of registration for change due to waiver of order may be independently applied for by the order-waiving party.The abovementioned registration shall require the applicant to present the required documents set forth in Articles 34 and 40 and proof of notice made to the obligor, pledger, and joint pledgers.
中文原文 土地登記規則第116-1條
同一標的之普通抵押權,因次序讓與申請權利內容變更登記者,應由受讓人會同讓與人申請;因次序拋棄申請權利內容變更登記者,得由拋棄人單獨申請之。
前項申請登記,申請人應提出第三十四條及第四十條規定之文件,並提出已通知債務人、抵押人及共同抵押人之證明文件。

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