Shandong Kaifeng Energy-Saving Technology Co., Ltd. was established on October 21, 2015 with Wang Songbai as its legal representative. The company is located in Tianqu New District, Dezhou City, Shandong Province. It focuses on the R&D and manufacturing of central air conditioning refrigeration equipment and supporting end products, and also engages in the R&D of energy-saving technologies. The company owns a number of patented technologies, including innovative achievements such as the integrated control system for large outdoor air conditioning units and the multi-stage complementary and automatically switchable heat exchange tank device. Through technological innovation, the company promotes the development and application of energy-saving and environmental protection products. In 2025, it was recognized as a National High-Tech Enterprise and a Technology-Based Small and Medium-sized Enterprise. In 2023, it was rated as a Provincial Innovative Small and Medium-sized Enterprise. The company ranks among the top 5% in innovation capability in the strategic emerging sector and has an outstanding number of authorized patents. Benefiting from the policy of building energy conservation that promotes the increase of photovoltaic application proportion, the company’s advantages in energy-saving technology R&D have been further enhanced.