January 1984
Commenced operations in small office in Fukuyama City.
January 1989
Established as a limited company (capital 3,000,000 yen) in Senda-cho, Fukuyama City.
April 1995
Kannabe No.2 plant opened for precision sheet metal processing.
March 1998
Capital increased to 10,000,000 yen.
August 1998
Senda-cho head office and Kannabe No.2 plant consolidated and moved to Kannabe Industrial Park.
September 1998
Company reorganized as Sequence Co., Ltd.
February 2004
Second plant established in Kamitakeda, Kannabe-cho.
October 2005
Head office plant (Asahioka) expanded.
Accommodated increased production of precision sheet metal products.
September 2017
Sheet metal plant established in Kannabe Industrial Park.
October 2017
Kannabe No.2 plant moved to head office.