1889
Founded to engage in the business of scouring silk "Habutai" fabric (renowned for its softness, sheen and silky hand).

1923
Established Fukui Seiren Kako Co., Ltd. to start a textile dyeing/finishing business.

1967
Established Seiren Shokusan Co., Ltd. (presently Seiren Shoji Co., Ltd.)

1969
Participated in management of Gunsen Co., Ltd.

1970
Established Seiren Electronics Co., Ltd.

1971
Established ALMA JAPAN CORP (presently Seiren ALMA Co., Ltd.)

1973
Renamed Seiren Co., Ltd.  Listed both in the First Sections of the Tokyo and Osaka Stock Exchanges.

1975
Started the business of planning, manufacturing and selling automotive upholstery materials.

1984
Started the business of selling electrically conductive fabric material "Plat®"

1985年
Established Seiren KP Co., Ltd.

1988年
Formulated management strategy "Expansion into non-clothing &non-textile fields, Utilization of IT, Direct distribution to customers and globalization"

1989年
Established a "short delivery time", "small lot" and "inventory-free" digital production system "Viscotecs@"; Established DEPRO Inc.

1990
Completed the construction of General Life Science Station (TPF Office) including a Viscotecs@ mass-production factory.

1994
Established Saha Seiren Co., Ltd. in Thailand to start full-scale global expansion of automotive upholstery material business.

1996
Developed the world's first patented process of extracting "pure sericin" from silkworm cocoons;
Started selling "Comoace®", a cosmetic containing pure sericin, a silk protein from cocoons.

1997
Established Seiren Produtos Automotivos Ltda.（Brazil）

1998
Started selling house exterior wall covering base sheet material "Lamitect@" (moisture-permeable waterproof)

1999
Released original brand "mash mania" to launch SPA (specialty store retailer of private label apparel) business.

2001
Established Viscotec Automotive Products, LLC（presently Seiren North America, LLC）in North America.

2002
Established Seiren Suzhou Co., Ltd. (China)

2004
Started a "Two Head Offices" system, one each at Tokyo and Fukui; Established Viscotec World Design Center LLC (U.S.A.);
Established Seiren Cosmo Co., Ltd.

2005
Succeeded to the textile business of Kanebo, Ltd. to launch it as KB Seiren, Ltd. ;
Established an integrated production system covering all processes in-house from fibers to finished products;
Started selling "QUOLE", new leather material surpassing genuine leather.

2006
Established a new facility "R & D Center" within the premises of the General Life Science Station.

2007
Established three (3) new facilities - FM Center, LN Center and SV Center - within the premises of the General Life Science Station.

2010
Established Seiren Electronics (Suzhou) Co., Ltd. (China)

2011
Started selling Viscotecs@ for non-textile use; Started selling a weed proofing sheet "Grass Guard";
Opened Seiren EU Office (France).

2012
Established SEIREN INDIA PRIVATE LIMITED (India);
Established PT. SEIREN INDONESIA (Indonesia);
Completed the construction of an integrated production factory for clothing materials in Saha Seiren Co., Ltd. (Thailand); Opened Seiren Detroit Office.

2014
Opened Seiren Hong Kong Office; Established Seiren Shanghai Co., Ltd. (China);
Established Seiren Viscotec Mexico S.A.de C.V. in Mexico.

2015
Split up Alma Japan Corp. into Seiren Sewtech Co., Ltd. and Seiren Alma Co., Ltd.:
Established Seiren Hebei Co., Ltd. (China);
Developed the world's first personal order system "Visoctecs make your brand@"

2016
Participated in an artificial satellite project

2017
Started selling a flexible conductive material "Metaflex".

2019
Acquired the ownership of KST World Corp. (presently Seiren KST Corp.)

2021
Established SEIREN Hungary Kft. in Hunga

2022
Transition to the "Prime Market" in the new market segments of the Tokyo Stock Exch