The cost of formal agency registration usually includes basic services such as business name verification, material preparation, license processing, official seal engraving (including official seal, financial seal, legal representative seal, etc.), and tax registration. The specific details will be clearly listed in the service contract. Generally, there are no hidden charges such as "material fees" or "errand fees". However, it should be noted that if the enterprise has special needs (such as expedited processing, foreign investment registration, application for special industry qualifications, etc.), additional fees may be incurred. The agency will communicate and confirm the charging standards in advance before providing the service to avoid subsequent disputes.