Originally from Michigan City, Indiana, USA, Sullair has focused on the research and development and manufacturing of screw air compressors for more than 50 years, and remarks as one of the world's best-known air compressor brands. In July 2017, Sullair joined Hitachi Group and Suzhou factory officially changed company name to Hitachi Global Air Power (Suzhou) Co., Ltd. in 2023. The Sullair products made in HGAP-Suzhou factory has been widely sold in China, Southeast Asia markets and other regions of the world.HGAP-Suzhou (previously named as SSAE) was founded in 2007 and put into operation in November 2008, which covers a land area of 23,800 m2. The floor area is about 14,100 m2, including main office, workshop, testing cells, and other subsidiary facilities.