Enforcement Rules of the Foreign Trade Act Article 2

The terms "foreign country" and "other country", as used in the Act, include any separate customs territory designated under the World Trade Organization.
中文原文 貿易法施行細則第2條
本法所稱外國或他國,包含世界貿易組織所指之個別關稅領域。

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