| City | Address | Contacts | Phone Number | |
| Shanghai | No. 5825, Huyi Road, Waigang Town, Jiading District, Shanghai | Andy Wang | 13917934443 | andy@hg-hdc.com |
| Beijing | Room 308, Building 8, No. 36, Majiabao, Fengtai District, Beijing | Nancy Zhang | 18621175367 | nancy@hg-hdc.com |
| Guangzhou | Room 805, Block A, Poly Zhonghui Plaza, No. 157, Linhe West Road, Tianhe District, Guangzhou | Adam Wang | 18621175369 | adam@hg-hdc.com |
| Xian | 10F, Lihua Technology Building, No. 8 Gaoxin Road, Gaoxin District, Xian | Aaron Liu | 18621175366 | aaron@hg-hdc.com |
| Chengdu | No. 1169, South Section of Tianfu Avenue, Gaoxin District, Chengdu | Xing Sheng Jie | 13636532141 | xsj@hg-hdc.com |
| Wuhan | No. 55, Xinhua Street, Wenhua Avenue, Jiangxia District, Wuhan | Jack Zhu | 18621175363 | jack@hg-hdc.com |