Deli Solar Technology Development (Beijing) Co., Ltd. is a leading professional business enterprise mainly engaged in solar energy technology research, development and transfer as well as a manufacturer and distributor of solar products. The company is also a subsidiary of Deli Solar International Energy Holding Company (Stock Code CSOL, Chinese Solar Energy and Clean Energy Company) that was listed in March 2005 of the U. S. Nasdaq Stock Market.

The Company's products like Solar Water Heaters, Heating Stoves, Biomass Stoves and lots of other solar products are all registered with famous brands such as "Deli Solar, " "De-Yu, " "Aliyang, " "All Deli" and etc. Solar Insect Killer, Solar Mosquitoes Killer, Solar Mouse & Solar Bird Repellers, Solar Power Supply System, Solar Sprinkling & Irrigation System for High-Tech Agriculture are also produced and sold by the company with more than 20 patents.