Headquarters address: 22F/ 4F, Haiyunhangtuo building, No. 62, Beijing Road, free trade zone, Qingdao, Shandong Province

Ruiyuan office area: 17 / F, building 3, Ruiyuan Mingjia international office building, No. 6, Lushan Road, Huangdao District, Qingdao, Shandong Province

Telephone number: 0532-86958511