Qingdao Hisense-Hitachi Air-conditioning System Co Ltd (青岛海信日立空调系统有限公司) was jointly established by Hisense Group and Hitachi Group in 2013 with responsibilities for commercial air-conditioning technology development, product manufacturing, marketing and customer service. 

The main products of the company are variable frequency commercial air-conditioning systems and variable frequency household central air-conditioning systems, which are sold all around the world including in Japan.