Contact information：
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Beijing RSK Consulting&Services Co., Ltd.
www.bjrsk.com.cn; service@bjrsk.com.cn
Address of registration: Room 218 , 2nd Floor, Huixin Building, No. 6, Xiangjun North Block, Chaoyang District, Beijing，Zipcode: 100026
Address of business: Room 2110, 21st Floor, Building D, SOHO Modern City, No. 88, Jianguo Road, Chaoyang District, Beijing, Zipcode: 100022