ISIC has a LinkedIn Group and a Wechat Group.
Click the follow link or copy-&-paste the link to your browser. You can then visit the ISIC Group at LinkedIn and request to be included in the group.
LinkedIn ( https://www.linkedin.com/groups/12243462/ )
Wechat (ISIC 中文群) – Join by invitation only. Contact Prof. Guanghui Xu for details (ghxhome@163.com).