Xiao Mei He

Zhejiang Dun'an Energy Saving Technology Co. Ltd. engages in the energy conservation and environmental protection services. It develops energy-saving & environmental protection technology and provides green & new energy technology solutions, energy integrated cascade utilization & clean energy development, green energy supply management. The company was founded on December 24, 2014 and is headquartered in Hangzhou, China.

Dun'an (Tianjin) Energy Saving System Co., Ltd. provides energy conservation and environmental protection services. Its business activities include environmental protection technology development, energy technology development and consulting, mechanical and electrical equipment installation engineering, heating and cooling engineering design and construction, energy management contracting services, energy-saving diagnosis and services, sale of machinery and hardware, and sale of coal and thermal energy. The company was founded on March 17, 2011 and is headquartered in Tianjin, China.

Joinstar Biomedical Technology Co., Ltd. principally engages in the research, development, production, and sale of in vitro diagnostic products. Its products include diagnostic instruments, reagents, and biological raw materials. The company was founded on December 16, 2010 and is headquartered in Hangzhou, China.