November, 1951	As a private individual, Hisao Higaki established a shipbuilding yard and began the manufacture and repair of wooden ships. Company name：Higaki Hisao Zosensho
	June, 1964	Incorporated and reinforced administration. Company name：Higaki Shipbuilding Co., Ltd. Capital：3,000,000 yen
	November, 1967	First berth for gross tonnage 1,000-ton shipbuilding completed, becoming a shipyard licensed by the Ministry of Transportation.
	October, 1969	100th ship completed.launched.
	June, 1971	"Akasaki Shipyard" mould loft and office work plant completed.
	May, 1973	Capital increased to 48 million yen.
	November, 1976	100-ton crane added.
	October, 1977	200th ship completed.
	October, 1982	Aggregate dead-weight tonnage of several million tons achieved.
	October, 1982	Computers introduced to establish an in-house computerized manufacturing and management system.
	August, 1983	300th ship completed.
	February, 1991	10,300 dead-weight ton cargo ship launched.
	November, 1991	Received approval for, and completed expansion of, floating dock from, 1999 to 2,999 gross tons.
	March, 1993	Received approval for, and completed expansion of, floating dock from, 1999 to 2,999 gross tons.
	March, 1994	Completed HSB House which had been built to commemorate the 30th anniversary of the company's founding.
	July, 1995	Tokyo office moved to company-owned building in Shinkawa（Shinkawa Musashiya Bldg.）.
	December, 1996	Assumed management of an Innoshima City hull block plant.
	April, 1997	In-house generating facilities introduced at Head office shipyard.
	February, 1998	Permission received for, and completed, expansion facilities from 5,999 gross ton berth to 6,800 gross tons.
	February, 1998	Shipbuilding consolidated system "Tribon" introduced.
	January, 1999	150-ton crane added. 5OOth ship completed.
	June, 1999	11,000 dead-weight ton chemical tanker
	March, 2000	Obtained certificate of ISO9001 from Lloyd.
	September, 2001	Obtained certificate of ISO14001 from Lloyd.
	February, 2003	Permission received for, and completed, expansion facilities from 6,800 gross ton berth to 7,300 gross tons.
	November, 2003	Permission received for, and completed, expansion facilities from 7,300 gross ton berth to 9,990 gross tons.