The provisions of Article 17 of the new Act do not apply to the continuation of any act that falls under the act of using a mark similar to that of an international organization as prescribed in Article 17 of the new Act (excluding a mark identical or similar to the emblem, flag, or other insignia, abbreviation, or name of an intergovernmental organization designated by the competent minister as prescribed in Article 4-2 of the former Act; referred to as "mark similar to that of a private international organization" below) as a trademark; any act that falls under the act of transferring, delivering, displaying for the purpose of transfer or delivery, exporting, importing, providing through telecommunications lines goods using a mark similar to that of a private international organization as a trademark; or any act that falls under the act of providing services using a mark similar to that of a private international organization as a trademark, if the act in question commenced before this Act comes into effect.