Lijian Meicheng was established in 2007, mainly engaged in external wall external thermal insulation materials such as passive anchor bolts, grid cloth, door and window connecting strips and drip lines. It is one of the few companies in the building materials industry whose products are selected in the catalogue of passive low energy consumption building products.

Mr. Huang Yongshen, chairman of the board of directors, has been to Germany for many times to investigate the ultra-low energy consumption green building technology system of passive housing, led Li Jianmei to participate in zero emission construction projects in 2009, and began to get involved in passive housing construction in 2015, making Li Jianmei one of the first batch of passive ultra-low energy consumption building construction enterprises in China.

       Based on the German passive house technology, the company has created the management and control mode of passive T7 insulation system, formed the omni-directional and systematic integration ability of passive insulation, realized the comprehensive control and full cycle management of passive insulation project construction, and effectively guaranteed the project quality. Lijianmei project is spread all over the country, covering areas with severe cold, cold, hot summer and cold winter, hot summer and warm winter, and mild climate. It has rich experience in regional and climate construction in Beijing, Tianjin, Hebei, Jiangsu, Zhejiang, Shanghai, Qi, Lu, Yu and Dawan district, It has successively implemented the envelope works of more than 200 zero carbon (ultra-low energy consumption, passive and near zero energy consumption) buildings in more than 20 provinces, cities and autonomous regions in China. For three consecutive years, the professional construction contract amount of passive housing has exceeded 100 million yuan and the output value has exceeded 70 million. It is one of the enterprises with the most zero carbon (ultra-low energy consumption, passive and near zero energy consumption) building construction cases in China.