The Enforcement Rules of the Conclusion of Treaties Act Article 7

When the Legislative Yuan submits a reservation clause pursuant to Article 10, Paragraph 1 of the Act, the competent authorities shall raise the matters to be reserved during the deposit of the instruments of ratification, acceptance, approval, and accession of the clause unless the treaty has stipulated otherwise.The matters to be reserved that are prescribed in the preceding paragraph may be included in the instruments of ratification, acceptance, approval, and accession of the matters, or may be submitted via its attachment.After receiving the resolution of the Legislative Yuan that is made pursuant to Article 10, Paragraph 2 of the Act, the competent authorities shall appoint another date for renegotiation with the signatory depending on the urgency and the necessity. The competent authorities shall explain the progress of the renegotiation to the Legislative Yuan as soon as possible.
中文原文 條約締結法施行細則第7條
立法院依本法第十條第一項規定對多邊條約提出保留條款時,除條約另有規定外,主辦機關應於存放批准、接受、贊同或加入書時,一併提出保留事項。
前項保留事項得以納入批准、接受、贊同或加入書,或以其附件方式提出。
主辦機關接獲立法院依本法第十條第二項所為之修正決議後,應視情況急迫性與必要性,擇期與締約他方重新談判,並儘速將談判情形向立法院說明。

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