|1956||Established Sanwa Shutter Manufacturing Co., Ltd. (President: Manji Takayama), a predecessor of this company, in Amagasaki, Hyogo Prefecture.|
|1959||Established Sanwa Shutter Co., Ltd. with branches in Sapporo, Sendai, Tokyo, Nagoya and Fukuoka.|
|1961||Established Sanwa Shoji Co., Ltd.|
|1963||Merged three Group companies and established Sanwa Shutter Corporation. Relocated headquarters to Tokyo.
Listed on the Second Section of the Tokyo Stock Exchange.
|1968||Listed on the Second Section of the Osaka Securities Exchange.
Relocated headquarters to Itabashi-ku, Tokyo.
|1969||Established Sanwa Door Industrial Co., Ltd.|
|1970||Listed on the First Section of both the Tokyo and Osaka Stock exchanges.|
|1974||Merged Sanwa Door Industrial Co., Ltd.
Entered into technical tie-up with Overhead Door Corporation (U.S.A).
Relocated headquarters to Shinjuku Mitsui Bldg., Tokyo.
|1981||Toshitaka Takayama becomes President and Manji Takayama Corporate Advisor.|
|1983||Deployed nationwide 24-hour service.|
|1984||Began sales of facades for stores by Showa Front Sales Co., Ltd. (now Showa Front Co., Ltd.)|
|1986||Established Sanwa Shutter (H.K.) Ltd. in Hong Kong.|
|1987||Established Sanwa Exterior Co., Ltd.|
|1988||Changed fiscal year end to March 31.
Established An-Ho Metal Industrial Co., Ltd. in Taiwan.
|1990||Acquired stake in automatic door company Showa Kensan Co., Ltd.|
|1992||Established Sun Metal Co., Ltd. in Thailand.|
|1996||Okinawa Sanwa Shutter Corporation began sales after being split off from Okinawa Regional Business Division.
Established Sanwa USA Inc. and acquired Overhead Door Corporation. Secured the lion's share of the U.S. garage door and shutter markets.
Established PT. Sanwamas Metal Industry in Indonesia.
Acquired stainless steel fitting manufacturer Yoshida Seisakusho Co., Ltd.
|1999||Acquired 100% of the shares of Tajima Junzo Seisakusho Co., Ltd., the top brand of stainless steel architectural materials.|
|2000||Established Sanwa Tajima Corporation as a stainless steel product sales company, and integrated it with the sales division of Tajima Junzo Seisakusho Co., Ltd.
Transferred Sanwa Exterior Co., Ltd.'s sales operations to Sanwa Shutter Corporation and its production operations to Sanwa Exterior Niigata Plant Co., Ltd.
|2003||Acquired Novoferm, Europe's second-largest manufacturer of doors and shutters. With this acquisition, Sanwa Shutter established a presence in Europe, as well as Japan and the United States.
Acquired 100% of the shares of Venix Co., Ltd., strengthening the partition business.
|2004||Established Sanwa Shutter Design (Shanghai) Corporation in Shanghai.
Occurrence of fatal accident involving an automatic revolving door manufactured by Group company Sanwa Tajima Corporation.
Established an internal office on Corporate Social Responsibility to oversee risk management, legal compliance and environment-friendly policies.
Start of Safety and Quality Inspection Week.
|2005||Established "Safety Pledge Day" (March 26)
Entered into OEM agreement for partition products with Kokuyo Furniture Co., Ltd.
Entered into comprehensive business alliance with Hochiki, a leading fire detection and disaster-prevention equipment company in Japan.
Acquired 100% of the shares of Tajima Metal Work Co., Ltd., strengthening sales of stainless steel products.
Established Novoferm (Shanghai) Co., Ltd., in Shanghai.
|2006||Acquired 100% of the shares of Metalwork Kansai Co., Ltd.
Sanwa Shutter celebrated its 50th anniversary.
Established Shanghai Baosteel-Sanwa Door Co., Ltd., a joint venture with Baosteel Development Co., Ltd., a subsidiary of Baosteel, in Shanghai to manufacture and sell overhead doors, rolling shutters and sheet shutters. Completed base of quadruple core structure: Japan, U.S.A., Europe and Asia (China).
|2007||The Sanwa Group adopts holding company system.
Sanwa Shutter Corporation changed its trade name to "Sanwa Holdings Corporation", and the operating company succeeded the trade name "Sanwa Shutter Corporation".
|2008||Sanwa Holdings agreed to establish a joint-venture company, Vina-Sanwa Company Liability Ltd., with the Vietnamese construction and trading company Vinaconex Corporation.
Sanwa Holdings acquired 100% of the shares of Hayashi Kogyo Co., Ltd., a steel door manufacturing company.
|2009||Overhead Door Corporation, our consolidated subsidiary, acquired the door businesses of Wayne Dalton Corporation.|
|2011||Overhead Door Corporation acquired an automatic door sales, installation, and maintenance business from Automatic Door Enterprises, Inc., an automatic door distributor in the U.S.
Domestic partition business (Venix) and sales operations of automated door business (Showa Kensan) integrated into Sanwa Shutter Corporation.
Overhead Door Corporation acquired 100% of the shares of Creative Door Services Ltd., strengthening the door services business in North America.
|2012||Overhead Door Corporation acquired Door Control, Inc., strengthening the automatic door services business.
Acquired front sash manufacturer ACE Co., Ltd.
Overhead Door Corporation acquired Advanced Door Automation, LLC., strengthening the automatic door services business.
|2013||Overhead Door Corporation acquired Texas Access Controls Inc., strengthening the automatic door services business.|
|2014||Sanwa Electronics Engineering(JP) entered Sanwa group.
Novoferm acquired Alpha Deuren International B.V.(Neth)
Sanwa Holdings acquired 50% shares of Dongbang Novoferm from Novoferm GmbH.
ODCacquisition of Horton Automatics of Ontario to enhance Automatic door service business.