For any inquiries, please feel free to contact us
Registration & Accommodation：
E-mail: psogi2021_pco@163.com
Tel: +86 010-8456 2890

Sponsoring：
E-mail: psogi2020@163.com
Tel: +86 010-6392 6522

General organization:
E-mail: psogi2020@163.com
Tel: +86 010-6392 6522