The , abbreviated as in Japanese or HSBE in English, operates the Kobe-Awaji-Naruto, Nishiseto, and Seto-Chà «à  expressways and their respective bridges between the islands of Honshu and Shikoku, Japan. It is headquartered in Chà «à Â-ku, Kà Âbe, Hyà Âgo Prefecture.
The company was established on October 1, 2005 as a result of the privatization of its predecessor, the Honshu-Shikoku Bridge Authority, itself a successor to the Japan Highway Public Corporation. The company is responsible for maintaining the three expressways and bridge systems between Honshu and Shikoku, as well as the management of the Seto-Ã Âhashi railway line.