Postal Act Article 3

In order to provide postal services, the MOTC has established the state-run Chunghwa Post Co., Ltd., hereinafter called Chunghwa Post. Unless otherwise specified by this Act, a separate law shall govern the establishment of Chunghwa Post.
中文原文 郵政法第3條
交通部為提供郵政服務,設國營中華郵政股份有限公司(以下簡稱中華郵政公司);除本法另有規定者外,其設置另以法律定之。

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