(1) A trade union shall prepare the following documents within 30 days after the date of its establishment, and keep them at its main office:
1. Register of union members (in case of a trade union in the form of an associated organization, the titles of its constituent organizations);
2. Union bylaws;
3. Names and addresses of executive officers;
4. Minutes of meetings;
5. Financial records and documents.
(2) Documents as referred to in paragraph (1)4 and 5 shall be kept for 3 years.