Yiwen Sun

Certified Passive House Designer

Kaihua Road 17# Nankai District
300384 TianJin
China

Initial by Exam

Certificate valid from May 14, 2021
Certificate valid until May 14, 2026
The certificate only applies to this person.

Examined by GBA - Green Building Academy / Dawid Michulec (大卫 米库莱克) at Beijing, China