H-ONE CO., LTD.

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Corporate History

Our company dates its founding to 1930, when Genshichi Hirata started his own business. Hongo Co., Ltd., our other predecessor, dates its founding to 1959, when Toshiaki Imai named his shop Imai Seisakusho. Both of these two founders established the foundations for business operations that continue to this day from the turbulent times of the postwar period through the rapid economic growth period while always looking over the horizon, and entrusted and handed over the baton to the next generation. Among the many companies engaged in the press sheet metal processing business, these two companies’ growth in conjunction with Japan’s evolving motorization were on good terms with each other and shared much in common with each other, such as Hirata and Hongo initiating over-the-counter trading of their stocks in 1994 and 2000, respectively, and both companies proceeded with joint ventures overseas from the 1980s onward. With advent of the 21st century, under circumstances where global expansion continues to accelerate, both companies made a decision to merge, concentrate management resources, and survive the competition, and H-one was born in 2006 and continues to move forward today.

1939~1950s

Scenery of Adachi Plant in 1939
Scenery of Adachi Plant in 1939
Manufacturing and selling Hirata Lamp in 1946
Manufacturing and selling
Hirata Lamp in 1946
Scene of production in 1952
Scene of production in 1952
April 1939 Hiratakogyo began operation in Honjo-ku, Tokyo, for the purpose of manufacturing metal press products.
November 1945 Hiratakogyo relocated its head office to Adachi-ku, Tokyo.
August 1952 Hiratakogyo started manufacturing parts for motorcycles and scooters for Honda Motor Co., Ltd.
July 1953 Hiratakogyo changed the company name to Hirata Press Kogyo.

1960s

At the time of establishment of Hongo Co., Ltd., in 1961
At the time of establishment of Hongo Co., Ltd., in 1961
At the time of establishment of Maebashi Factory in 1961
At the time of establishment of Maebashi Factory in 1961
At the time of establishment of Kameyama Factory in 1963
At the time of establishment of Kameyama Factory in 1963
October 1961 Hongo seisakusho started operation in Toda-machi, Kita Adachi-gun, Saitama, for the purpose of manufacturing and selling press sheet metal and machined parts.
November 1961 Hirata Press Kogyo established Maebashi Factory in Maebashi-shi, Gumma.
September 1963 Hirata Press Kogyo established Kameyama Factory in Kameyama-shi, Mie.
June 1967 Hirata Press Kogyo and Hongo seisakusho received an order to produce automobile parts from Honda Motor Co., Ltd. and started full-scale mass production.

1970s

Scenery of Hongo seisakusho head office in 1971
Scenery of Hongo seisakusho
head office in 1971
At the time of establishment of Koriyama Factory in 1971
At the time of establishment of Koriyama Factory in 1971
Establishment of new plant with large pressing machine in 1975 (Kameyama Factory)
Establishment of new plant with
large pressing machine in 1975
(Kameyama Factory)
April 1971 Hongo seisakusho established Koriyama Office (currently Koriyama Factory) in Koriyama-shi, Fukushima.

1980s

Manufacturing and selling in-house robot “HON-BOY” by Hongo seisakusho in 1980s
Manufacturing and selling in-house robot “HON-BOY” by Hongo seisakusho in 1980s
At the time of establishment of KTH Parts Industries, Inc., in 1984
At the time of establishment of KTH Parts Industries, Inc., in 1984
Renewal of welding plant of Maebashi Factory in 1985
Renewal of welding plant of Maebashi Factory in 1985
May 1984 Hirata Press Kogyo and Hongo seisakusho entered into a capital participation in KTH Parts Industries Inc. (currently a consolidated subsidiary) in Ohio in the United States (and thereafter established five bases in North America).

1990s

At the time of establishment of H-ONE Parts (Thailand) Co., Ltd., in 1994
At the time of establishment of H-ONE Parts (Thailand) Co., Ltd., in 1994
At the time of establishment of KTH Shelburne Manufacturing, Inc., in 1996
At the time of establishment of KTH Shelburne Manufacturing, Inc., in 1996
At the time of establishment of H-ONE India PVT., Ltd., in 1997
At the time of establishment of H-ONE India PVT., Ltd., in 1997
January 1990 Hirata Press Kogyo changed its company name to HIRATA TECHNICAL CO., LTD.
January 1991 Hongo seisakusho changed its company name to HONGO CO., LTD.
March 1992 HONGO CO., LTD. established Karasuyama Office (currently Product Development Center Karasuyama) in Nasu Karasuyama-shi, Tochigi.
September 1994 HIRATA TECHNICAL CO., LTD. began over-the-counter trading for its stock at the Japan Securities Dealers Association.
September 1994 HIRATA TECHNICAL CO., LTD. entered into a capital participation in Hirata Parts Thailand Co., Ltd. (currently H-ONE Parts (Thailand) Co., Ltd. a consolidated subsidiary), in Sri-Ayutthaya, Thailand.
July 1997 HIRATA TECHNICAL CO., LTD. established technological information center (currently Product Development Center) in Haga-gun, Tochigi.
December 1997 HONGO CO., LTD. established Hongo India PVT., Ltd. (currently H-ONE India PVT., Ltd. a consolidated subsidiary), in New Delhi, India, through joint investments with local capital.

2000s

At the time of establishment of KTH Leesburg Products, LLC., in 2000
At the time of establishment of KTH Leesburg Products, LLC., in 2000
At the time of establishment of GH Auto Parts Industries Inc., in 2001
At the time of establishment of GH Auto Parts Industries Inc., in 2001
At the time of establishment of QH Auto Parts Industries Inc., in 2005
At the time of establishment of QH Auto Parts Industries Inc., in 2005
At the time of establishment of WH Auto Parts Industries Inc., in 2005
At the time of establishment of WH Auto Parts Industries Inc., in 2005
HIRATA TECHNICAL CO., LTD. and HONGO CO., LTD. merged and changed the company name to H-ONE CO., LTD. in 2006
HIRATA TECHNICAL CO., LTD. and
HONGO CO., LTD. merged and changed the company name to H-ONE CO., LTD. in 2006
Moved the head office in 2006
Moved the head office in 2006
June 2000 HONGO CO., LTD. began over-the-counter trading for its stock at the Japan Securities Dealers Association.
October 2000 HIRATA TECHNICAL CO.,LTD. established Ota Plant in Ota-shi, Gumma.
January 2002 HIRATA TECHNICAL CO., LTD. and HONGO CO., LTD. entered into a capital participation in GH Auto Parts Industries Inc. (currently a consolidated subsidiary) in Guangdong, China.
December 2004 HIRATA TECHNICAL CO., LTD. and HONGO CO., LTD. listed on Jasdaq Securities Exchange, Inc. (currently Tokyo Stock Exchange, JASDAQ).
February 2005 HIRATA TECHNICAL CO., LTD. and HONGO CO., LTD. entered into a capital participation in QH Auto Parts Industries Inc. (currently a consolidated subsidiary) in Guangdong, China.
February 2005 HIRATA TECHNICAL CO., LTD. and HONGO CO., LTD. entered into a capital participation in WH Auto Parts Industries Inc. (currently a consolidated subsidiary) in Hubei, China.
September 2005 HIRATA TECHNICAL CO., LTD. and HONGO CO., LTD. reached a basic agreement to merge as of April 1, 2006.
November 2005 HIRATA TECHNICAL CO., LTD. entered into a capital participation in CNC D-TEX Co., Ltd. in Suphanburi, Thailand.
April 2006 HIRATA TECHNICAL CO., LTD. and HONGO CO., LTD. merged and changed the company name to H-ONE CO., LTD. Moved the head office to Omiya-ku, Saitama-shi, Saitama.

2010s

At the time of establishment of H-ONE Parts Sriracha CO., Ltd. in 2010
At the time of establishment of H-ONE Parts Sriracha CO., Ltd. in 2010
At the time of establishment of G-ONE AUTO PARTS DE MEXICO,S.A. DE C.V. in 2012
At the time of establishment of G-ONE AUTO PARTS DE MEXICO,S.A. DE C.V. in 2012
Designated in the First Section of the Tokyo Stock Exchange in 2017
Designated in the First Section of the Tokyo Stock Exchange in 2017
September 2010 Established H-ONE Parts Sriracha Co.,Ltd. in Chon Bori, Thailand.
October 2010 Established Nakatsu Plant in Nakatsu-shi, Oita.
March 2012 Established G-ONE AUTO PARTS DE MEXICO,S.A.DE C.V. in Guanajuato, United Mexican States, through joint investments with G-TEKT CORPORATION.
October 2013 Established PT. H-ONE KOGI PRIMA AUTO TECHNOLOGIES INDONESIA in West Java, Indonesia, through joint investments with KOGI CORPORATION and local capital.
May 2015 Established Konan Plant in Konan-shi, Shiga.
March 2016 Closed Toda Plant (Toda-shi Saitama).
April 2016 Decided voluntary application of International Financial Reporting Standards.
June 2016 Changed the listing market to the Second Section of the Tokyo Stock Exchange.
March 2017 Designated in the First Section of the Tokyo Stock Exchange.

2020s

July 2020 Established Dongfeng Aiji Auto Stamping Parts Co.,Ltd. in Hubei, China, through joint investments with Dongfeng Die & Stamping Technologies Co.,Ltd and WH Auto Parts Industries Inc.
October 2021 Established Bungotakada Plant in Bungotakada-shi, Oita.
January 2022 Established ZH Auto Parts Industries Inc. in Guangdong, China.
April 2022 Listed on the Prime Market of the Tokyo Stock Exchange.
June 2022 Closed Nakatsu Plant (Nakatsu-shi Oita).
September 2022 Established WH New Energy Auto Parts Industries Inc. in Hubei, China.
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