All contents provided on the CTT Co., Ltd. website, such as web documents, attachments, DB information, etc. are copyrighted works protected by the Copyright Act and are, in principle, copyrighted by CTT Co., Ltd. unless a separate copyright notice or other source is specified. Unauthorized reproduction or distribution of materials on the CTT Co., Ltd. website may constitute infringement of intellectual property rights under Article 97 Paragraph 5 of the Copyright Act and may result in civil and criminal penalties. If you intend to profit from or benefit from the content published on the CTT Co., Ltd. website, you must make a separate agreement or obtain permission in advance, and even if you publish the content of the material with the agreement or permission, you must indicate that the source is the CTT Co., Ltd. website. It is permissible to link to the main page of the CTT Co., Ltd. homepage from a page on another Internet site, but it is not permissible to link to a sub page (subdomain). In addition, when linking to the main page, you must notify the system administrator of the link. ※ Contact person : Kim Jae Mun