In order to provide you with a better browsing experience, we are currently upgrading our official website (www.cctss.org)，so the access to the website and membership registration is temporarily suspended. And you are warmly welcome to visit our English website (www.duechina.com). The official website (www.cctss.org) will be reopened after the upgrade is completed. We apologize for the inconvenience.
For any further questions, please feel free to contact us.Tel: 010-82300038