Qingdao Longertek Group is a hi-tech enterprise having international advanced inverter technology and system control technology. It currently possesses the subsidiaries of Qingdao Longertek Software Co., Ltd., Qingdao Longertek Technology Co., Ltd., Qingdao Longertek Electric Co., Ltd., and Laiwu Sanhe Science & Technology Co., Ltd. Since its foundation, the enterprise has always taken "Pursuing Science and Technology Lead, Aspiring to a Beautiful Life " as its management concept, paid attention to the integration of technology, management, capital marketing, and committed itself to the research & development, production and sales of high & new technology.