The obligations of the licensee in the trademark license contract include: 1. Guarantee the quality of goods using the registered trademark 2. If a licensed trademark infringement occurs, the licensee shall assist the licensor in investigating the facts of the infringement 3. Pay the trademark license fee as stipulated in the contract. 4. No one shall be allowed to use the registered trademark without the consent of the trademark owner. Article 40, Paragraph 2 of the Trademark Law stipulates that if someone is allowed to use another person’s registered trademark, he must do so before using the registered trademark. The goods shall be marked with the name of the licensee and the place of origin of the goods. Article 40(1) of the Trademark Law stipulates that the licensor shall supervise the quality of the goods used by the licensee using its registered trademark. The licensee shall ensure the quality of the goods using the registered trademark.