Address: Address 1:Sinopec (Yizhuang) Intelligent Manufacturing R&D and Production Base, 8-9F, No. 7, Taihe 1st Street, Tongzhou District, Beijing, China; Address 2:Sinopec Sales Beijing Petroleum Branch, 6-7F, No.6, Guangqu Homland Building, Dongcheng District, Beijing; Address 3:Office 628, 6/F, Building 1, No. 22 Chaoyangmen North Street, Chaoyang District, Beijing; Postcode:100027