地址：北京市经济开发区经海二路29号院6-1-601
6-1-601，No.29 Jinghai Second Road, Beijing Economic and Technological Development Zone
电话 Phone Number：+0086 （010）67896784
邮箱Email Address：xfgjhk@vanguard.com，bjhardware@vanguard.com

地址Company Address：Farm No. F/415a/O/20,Indeni Area,Ndola
电话Phone Number：+0026 0976806281
邮箱Email Address：zmbresources@vanguard.com

地址Company Address：127 ROUTE KINSEVERE C/ ANNEXE,V/LUBUMBASHI P/KATANGA
电话Phone Number：+243 850 791 670
邮箱Email Address：gds@gdsarl.com

地址Company Address：NO.1058 TIGO GUEST HUOSE D’JAMENA CHAD
电话Phone Number：+0235 66061388
邮箱Email Address：:chadindustry@vanguard.com