The society in which we live is becoming more convenient and more eco-friendly affected by the advance of Technology.
Robots that were only for industrial use are now equipped with AI or used for a nursing care.
On the street, we are facing an era of change once every 100 years in the automotive system, which is eco-friendly with automatic driving capability.
To avail ourselves of the big changes in society, we, Tsukuba Die Casting Co., Ltd. also expand the width of the product not only for IT/electrical, but also for robots and for automotive parts, and strive to further develop and improve the technology and the quality that can correspond to these wide range of products and parts. In order to improve quality and enhance the management system, 3 factories in Japan and 3 factories in Vietnam received IATF16949 certification. Also, we proceed to reduce Greenhouse Gas (GHG) .
Based on the slogan "Tsukuba Next", we take advantage of the strengths of the production network, four domestic locations in Japan(SAITAMA FACTORY,  TONO FACTORY,  MIYAGI FACTORY,  TSUKUBA Co., Ltd.) and three in Viet Nam, and carry out the integrated production of aluminum and magnesium die-cast products from casting and machining to painting.
With the trust and achievement that we have built up over the long 72 years since our foundation in 1951, we have been thoroughly mindful of "customer first" and will do our best and sincerely strive to satisfy everyone with our technological capabilities besides quality, cost and delivery.

Chairperson(CEO):  Kenji Masubuchi President(COO):  Takashi Watanuki


Quality Policy
We provide cutting-edge and high-quality products
that satisfy our customers.
The goal of our manufacturing processes is
to satisfy our customers.
Pursuit of technological power
and customer satisfaction
To cater to customer needs and achieve customer satisfaction,
Tsukuba engages in new technology development,
including integrated production from die-casting to painting
both in Japan and overseas (Vietnam).
As a member of society at home and abroad, we comply with laws,
regulations, social norms, and internal rules, and conduct business activities sincerely.
Based on the compliance policy, we will only procure materials unrelated to
conflict minerals linked to the source of funding,
such as human rights violations (illegal child labor),
poor labor conditions, environmental destruction, corruption,
etc., which have led to conflict areas, anti-social forces, and armed forces.
Parent and child images
SDGs activities
Saitama Environmental SDGs Initiative
Declaration Company
(November 1, 2021)
Saitama Prefecture
SDGs Partner
(November 30, 2021)
掲載通知のイメージ SDGsパートナー登録証のイメージ
Safty + 5S activities
Safety Declaration
(November 1, 2023 edition)


Environmental Philosophy We contribute to improve the global environment in recognizing that the conservation of the global environment is one of the key issues of 21st century.
Environmental Policy
  1. 1.We produce products in consideration of the environment, through our die-cast production.
  2. 2.We are involved in the reduction of waste products, conservation of resources, reduction and total abolition of toxic materials and we strive for preventing pollution, preserving the environment, and the continuous improvement of the system in our business activities.We proceed to reduce Greenhouse Gas (GHG) .
  3. 3.We comply with environmental regulations and local government by-laws, and other environment related requirements as supported by our company.
  4. 4.We set environmental objectives and goals, and regularly review our activity framework.
  5. 5.We document, carry out, and maintain environmental policies, and keep the entire workforce informed.
  6. 6.We publicly disclose our environmental policies.

Information Security

Cyber Terrorism Prevention and IT Device Management Guidelines

1)In order to protect and manage IT equipment, employees who use IT equipment shall continue to maintain and manage it as described in the following paragraph.

2.Connection management
1)Do not give remote access privileges to all employees.


  1. 1)When employees download data using the Internet, etc., Don't download anything other than reliable websites. When downloading from an unreliable website, the system administrator and Download after consultation and permission from the system administrator.
  2. 2)If you accidentally download from an unreliable website, Scan the antivirus software. Also, if you can't handle it yourself, Report to the system administrator.
  3. 3)Reduce the number of unopened emails on individual computers as much as possible.
  4. 4)Do not open the email if you do not know the sender.
  5. 5)If you accidentally open a spam email, scan your antivirus software.

Rich Life

Tsukuba Die Cast Industry Co., Ltd. aims at sincerity and execution as stated in the Corporate Philosophy, and a prosperous life for employees and their families. We will strive to create an environment where all employees can respect each other's personalities and live with a rich heart for individuals,
friends, families, and all employees.

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