Sadaichi Yahata started business as Mancho Gumi in Hiroshima-City.
Sep. 1946
Renamed from Mancho Gumi to Sanyo Denki Kogyosho.
Oct. 1948
Established Sanyo Denki Koji Corporation (the present-day Sanyo Engineering & Construction Inc.)
Mar. 1956
Transferred the Head Office to 1 Rokubancho, Chiyoda-ku, Tokyo.
Apr. 1958
Upgraded the Osaka Business Office and renamed it the Osaka Branch Office.
Apr. 1967
Established Hiroshima Electrical Manufacturing Factory.
May. 1973
Listed on the second section of the Tokyo Stock Exchange
Dec. 1974
Transferred the Head Office to 9 Nibancho, Chiyoda-ku, Tokyo.
Jan. 1975
Established Singapore Branch Office.(closed in June 2021)
Jun. 1978
Upgraded the Business Offices in Sendai, Nagoya (Chubu), and Kyusyu and renamed them Branch Offices.
Feb. 1979
Upgraded the Sapporo Business Office and renamed it the Hokkaido Branch Office.
Feb. 1986
Established Chiba Electrical Manufacturing Factory.
Apr. 1987
Established SEC MASHIBAH SDN.BHD (Brunei).
Jan. 1990
Established SECM SDN.BHD (Malaysia).
Oct. 1992
Changed business name from Sanyo Denki Koji Corporation to Sanyo Engineering & Construction Inc.
Oct. 1992
Renamed the Sendai Branch Office the Tohoku Branch Office.
Mar. 1995
Established Hanoi representative office (Vietnam).(closed in May 2010)
Feb. 1996
Established Ho Chi Minh representative office (Vietnam).(closed in May 2010)
Jun. 1996
Transferred the Head Office to 13-3 Nibancho, Chiyoda-ku, Tokyo (present address)
Aug. 1996
Established Yangon Branch (Myanmar).
Jun. 1997
Head Office Electric Works Department acquired ISO9001 certification.
Sep. 1998
Head Office Electric Power Department acquired ISO14001 certification.(voluntarily surrendered in Sep 2022)
Mar. 2000
Established S.E.C.T. COMPANY LIMITED (Thailand).(currently a SECT COMPANY LIMITED)
Sep. 2000
Established Taipei Branch (Taiwan).
Aug. 2003
Established Sanyo Electric Technology (Shanghai) Co., Ltd. (China).
Jul. 2004
Established Systec Engineering Co., Ltd.
Jan. 2007
Established PFI Sakuranbo Higashine School Catering Co., Ltd.(dissolved in June 2023)
Oct. 2008
60th anniversary of the company’s establishment
Jan. 2010
Established SANYO ENGINEERING & CONSTRUCTION VIETNAM CO., LTD.(Vietnam)
Oct. 2012
Established Yamaguchi Ube Solar Co., Ltd.
Aug. 2014
Acquired shares of Musashinokogyo Co., Ltd.
Jan. 2015
Transferred all shares of Systec Engineering Co., Ltd. to the company
Dec. 2016
Established Bangladesh branch
Feb. 2017
Established SEC (S) PTE. LTD. (Singapore)
Dec. 2017
Acquired shares of Sanki Sangyo Co., Ltd.
Oct. 2018
70th anniversary of the company’s establishment
Dec. 2018
SECM SDN.BHD. (currently a consolidated subsidiary) acquired shares of PT SECM TECH INDONESIA (currently a consolidated subsidiary).
Jun. 2019
SANYO ENGINEERING & CONSTRUCTION VIETNAM CO., LTD. (currently a consolidated subsidiary) acquired shares of SEAPRODEX REFRIGERATION INDUSTRY CORPORATION (currently an equity-method affiliate).
Apr. 2022
Moved from the Second Section of the Tokyo Stock Exchange to the Standard Market due to a review of the Tokyo Stock Exchange's market divisions.
Apr. 2023
Established Tokyo Branch Office in Electric Power Division and Tokyo Branch Office in International Business Division.
