The National Stadium (Bird's Nest) carries the commitment of the Chinese nation to the Olympic spirit. It is a representative of the national image and a symbol of the rise of the Chinese nation. Since the 2008 Beijing Olympics, there have been many HVAC companies hoping to cooperate with the Bird's Nest. Only Kale Environment has won the final victory.

The Bird's Nest is a new geographical symbol and represents a new image of national progress and development. When choosing strategic partners, especially for cooperation in energy-saving technology, we must take into account that the company’s comprehensive strength and technical strength are also internationally competitive and industry-leading.

As the world's best international environmental transformation company, Kale Environment is the vanguard of Chinese enterprises with core technologies to go to the international market and achieve success. The two parties established a strategic partnership with the main purpose of technology and energy conservation, which conveyed the confidence and determination of Chinese enterprises to promote the transformation of energy production and consumption patterns and optimize the ecological environment. The Bird's Nest also hopes to use its international influence to help Chinese companies that take Kale Environment as the example to lead the world's new production and lifestyle changes.