noun
liaison office; de-facto embassy
An office that handles communication and coordination, often used for entities that lack formal diplomatic relations, such as Taiwan's representative offices.
台湾の連絡事務所が東京に設置されている。
Taiwan's liaison office is established in Tokyo.
大使館 is a formal embassy with full diplomatic status, while 連絡事務所 is a liaison office often used when formal diplomatic relations are absent.
Compound of 連絡 (liaison, contact) and 事務所 (office).