Corporate Profile


required by the world
Aiming for a company

As we enter the 21st century, our world is rocked by waves of rapid economic growth and transformation, especially in Asia. As the ATC Holdings Group faces these challenges, we aim to achieve sustainable success in a constantly changing social environment, such as the division of international society and global warming caused by climate change.

Our mission as a group is to grow together and create new value while valuing the five hearts of “faith,” “katsumi,” “learning,” “altruism,” and “gratitude” that are rooted in our management philosophy. It is about creating. These principles are important guideposts for us, seen in stories and in our daily activities.

Also, as the expression “cool heads but warm hearts” suggests, the basis of our work is to have a cool head that can explain things theoretically, common sense, a sense of justice, morality, and a warm heart. .

By sharing this mindset with all employees and putting it into practice, the ATC Holdings Group, which has a wide variety of industries, aims to create new corporate value and strengthen collaboration. We aim for “independence”. Taking on bold challenges in new businesses, improving customer satisfaction, and contributing to society are also important goals for us.

We will continue to strive to achieve further growth as a company that is needed around the world, especially in Asia, with the aim of becoming a 100-year company.

ATC Holdings Group
Asahi Tech Corporation Co., Ltd.
Representative Director President Group CEO

CEO / Tenpei Ooka



I. The Spirit of Faith
II. The Spirit of Altruism
III. The Spirit of Ambition
IV. The Spirit of Self-Discipline
V. The Spirit of Gratitude


  • President & CEO
    Tenpei Ooka
  • Vice-President
    Kohei Ooka
    Director, Management Strategy Office General Manager, Creative Business Division
  • Senior Managing Director
    Akio Ito
    Shinsyou Kasei Kogyo Co., Ltd.
    President & CEO
  • Senior Managing Director
    Naoto Ono
    General Manager, General Affairs Division
  • Managing Executive Officer
    Kazuo Miwa
    Head of Planning Office
  • Managing Executive Officer
    Hidefumi Yamashita
    General Manager, Shiga Business Office
  • Executive Officer
    Akira Nishijima
    Deputy General Manager, Creative Business Division
  • Executive Officer
    Kazuhisa Masuda
    Chief, Techno Park Business Office
  • Executive Officer
    Tetsuya Kitagawa
    Chief, Life Business Office
  • Executive Officer
    Masahiko Yamaguchi
    Shiga Office General Manager
  • Executive Officer
    Tadashi Imai
    Planning Office General Manager



Date Founded April, 1962
Capital 86 million yen
Number of Employees 560
Group Total 1,000 *including part-time labor
Banks of Account Shiga Bank,Mitsubishi UFJ Banking Corporation, Kansai Mirai Banking Corporation, Sumitomo Mitsui Banking Corporation, Mizuho Bank, Shigaken Shinyoukumiai, etc.
Registration Numbers Worker Dispatching Undertakings 25-300063
Fee-Charging Employment Placement Businesses 25-yu-300030
Main Clients
  • TOTO Ltd.
  • Sekisui Chemical Co., Ltd.
  • Sekisui Plastics Co., Ltd.
  • Tsubakimoto Kogyo Co., Ltd.
  • Kubota Corporation
  • Mitsubishi Logisnext Co., Ltd.
  • Maruichi Co., Ltd.
  • Pentel Co., Ltd.
  • Nagoya Toubu Rikuun Co., Ltd.
  • Hitachi Construction Machinery Tierra Co., Ltd.
  • Fukushima Galilei Co., Ltd.



April, 1962 Michio Ooka, along with seven other stakeholders, founded Asahi Packing Corporation with 1 million yen in capital.
April, 1964 Built a cardboard box factory at the headquarters and started production and sales.
April, 1967 Started production and shipping service contract with TOTO Ltd. Shiga factory.
January, 1979 Founded 100% owned Sankyo Packaging Corporation with 20 million yen in capital, and transferred cardboard box production division to them.
July, 1987 Along with the foundation of Nihon Yupro Corporation, opened Kobe Business Office to start contracted production and shipping of water heaters.
December Founded 100% owned Otsu Cardboard Corporation with 19 million yen in capital and started production of cardboard box for Rengo Co., Ltd. Shiga Plant.
May, 1988 Started production and sales of harnesses at the headquarters factory.
April, 1991 Changed company name to Asahitec Corporation. Opened main sales office for business expansion.
August Opened Techno Park Business Office as the second factory of TOTO Ltd. Shiga was founded.
Started contract with Shiga Logistics Center for shipping related duties.
April, 1996 Opened Housing Division along with foundation of new factory for Synthelite at Sekisui Chemical Co., Ltd. Shiga Minakuchi.
Started production contract for manufacturing external wall material for residential houses (Sekisui Heim).
August Founded Asahi Engineering Co., Ltd.
July, 1997 Started public projects such as manufacturing acoustic boards for elevated highways.
December Opened Chemical Division.
July, 1998 Founded Asahi Pactem Co., Ltd., a merger of Sankyo Packaging Corporation and Otsu Cardboard Corporation.
December Opened Carna Kobe Shop, the automotive coating shop providing Hydrotect coating.
March, 2002 Founded Japan Field Co., Ltd.
October Development and sales of child assistive equipment, iTryChair.
Founded Meishin Tsuchiyama Logistics Center.
Opened Carna Koka Location.
June, 2003 Held ceremony for 40th anniversary of foundation. Tenpei Ooka became the president and CEO.
December Hisago Printing Ltd. became corporate group member.
August, 2004 Office-Arc Ltd. became corporate group member.
July, 2005 Founded GAAT Corporation for human resource development business in Vietnam.
June, 2006 Japan Management Service Inc. became corporate group member.
October Transferred Hisago Printing Ltd. to Printing Division of Office-Ark Ltd. in order to promote fabless manufacturing and further strengthen sales operation.
April, 2007 Founded Asahi Tec Vietnam Co., Ltd. after acquiring a license for “providing human resource consulting and labor management system” as a first 100% foreign company in Vietnam.
September, 2008 Started production contract for manufacturing kitchen units at the TOTO High Living Ltd. Koka Factory.
Received Minister of Health, Labor and Welfare Award for our endeavor of employing people with disabilities.
October Opened Advertisement production division, and moved the office to Motoakasaka, Minato-ku, Tokyo.
April, 2009 Opened Human Resource Development Section at Kobe Office to launch human resources business.
April, 2011 Donated reinforced cardboards and introduced public holiday system for employees who volunteered for the Great East Japan Earthquake Relief.
December Daihohiragi Inc. became corporate group member.
April, 2012 50th anniversary of foundation.
June, 2016 Winning BEST PARTNER AWARD.
(Sponsored by TOTO Ltd. Logistics Operational Headquarter)
September, 2017 Shinsyou Kasei Kogyo Co., Ltd. became corporate group member.
May, 2018 Founded ASAHI TEC ASIA CO.,LTD. in Thailand.
January, 2020 We have decided to absorb and merge Office Ark Co., Ltd. into Japan Field Co., Ltd. as its Osaka branch.
This move aims to strengthen our business operations in the Hanshin region and achieve managerial streamlining.
February We have acquired the operating rights of the Yakiniku restaurant “Ushiya Ginbei” in Ginza, Tokyo.
In order to expand our food and beverage business, we have established a joint venture company called ATC Dining Co., Ltd. with Japan Field.
December, 2023 AKUTSU INDUSTRY (THAILAND) CO.,LTD.became corporate group member.