Hongjie Xu

Certified Passive House Designer

B. Sc. Civil-engineer

DaTong Group

Fang Qun Road
No.501 13Building Fangguyuan1arae
100078 BEIJING

Phone: 022-83129800

Initial by Exam

Certificate valid from Nov. 21, 2018
Certificate valid until Nov. 21, 2023
The certificate only applies to this person.

Examined by Beijing Research and Development Center of Building Energy Efficiency at BEIJING, China