On March 18th, the delegation of Chongqing Sanyuanse Energy-saving Construction Engineering Co.,Ltd. visited the headquarters of Frey Group in Freiburg . The project director Ms.Duan Zhilan introduced the company's advantages and development direction and showed the core business——ultra-low energy building and related technologies ,as well as numerous practical cases which are designed and built by the company in recent years. After that , she accompanied with Liu Zhiyong(the chairman of the company), and Zhou Xiang (the general manager) and visited the construction project in Rieselfeld , which is the eco-energy demonstration zone in Freiburg.

During the visit Ms. Duan introduced the project features, the main application of green building energy-saving technology and sustainable development concept. The Sanyuanse Company expressed strong interest in passive house design and construction technology and hoped to cooperate strategically with the group in the future to expand the passive house business together. Through positive communication both sides have deepened their understanding of each other and initially reached the intention of future project cooperation, jointly committed to promoting green and energy-efficient buildings in China.