Shandong Longertek Technology Co., Ltd. engages in the research, development, production, sale, and maintenance of rail transit vehicle air conditioners and their control systems in China, Hong Kong, Macao, Taiwan, and internationally. It offers track and new energy vehicle air conditioners, new energy and intelligent thermal management products, data center equipment, professional computer room temperature control products, industrial integrated air conditioner products, air energy heat pump drying equipment, digital energy intelligent environmental control products, industrial integrated air conditioners, and variable frequency controllers, as well as new energy equipment, such as wind-solar-storage-charging smart microgrid. The company also offers technical and testing services. Shandong Longertek Technology Co., Ltd. was founded in 2000 and is headquartered in Jinan, China.