Mutual Legal Assistance in Criminal Matters Act Article 21

1. A request for service of document shall include in the Letter of Request the following items:(1) Name, nationality, personal particulars, or any other identification information of the person to be served and the statutory agent, representative or administrator of the natural or legal person to be served.(2) Address of the domicile, residency, office, workplace, or any other place suitable for the service of documents of the natural or legal person to be served.2. When the Requesting Party is unable to locate the person to be served, it may ask for specifying the location of the person in the Letter of Request.
中文原文 國際刑事司法互助法第21條
請求送達文書者,應於請求書記載下列事項:
一、應受送達人及其法定代理人、代表人、管理人之姓名、名稱、國籍或其他足資識別身分之資料。
二、應受送達人之住所、居所、事務所、營業所或其他得以收受送達之處所。
請求方無法特定收受送達之處所時,得同時表明請求查明送達處所之旨。

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