Xi Chaofeng
Certified Passive House Designer
Yangshan district in Xinyang
China
Initial by Exam
Certificate valid from Oct. 16, 2020
Certificate valid until Oct. 16, 2025
Certificate valid until Oct. 16, 2025
The certificate only applies to this person.
Examined by Hefei Warm Passivhaus Consulting Co. Ltd. at Zhengzhou, Henan, China