Code of Civil Procedure Article 127

Service upon a person without the capacity to litigate shall be effectuated upon all of his/her statutory agents.Where there are two or more statutory agents and the place where service shall be effectuated with regard to some of them is unknown, service may be effectuated upon the other statutory agents only.
中文原文 民事訴訟法第127條
對於無訴訟能力人為送達者,應向其全體法定代理人為之。
法定代理人有二人以上,如其中有應為送達處所不明者,送達得僅向其餘之法定代理人為之。

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