Full company name: Beijing Refining Network Technology Co., Ltd.

Registered address: 0710-1, 7th Floor, Building 32, Beisanhuan West Road, Haidian District, Beijing

Office address: 0710-1, 7th Floor, Building 32, Beisanhuan West Road, Haidian District, Beijing

7*24h service telephone: 010-88459460，18701135022

Zip code: 100086