CMK Corporation

What's CMK?What's CMK?

What's CMK? What's CMK?

What kind of company is CMK?

CMK is a manufacturer of printed wiring boards (PWBs)
with over five decades of experience.
The company specializes in manufacturing PWBs
for the automotive industry.

CMK at a glance

Establishment year


Experience for supplying automotive PWBs


Number of employees (consolidated)


Number of employees with qualifications related to environmental laws and regulations


Figures are as of Mar. 31, 2023

Area coverd by annually manufactured PWBs

square meters

Net sales

0billion yen

Percentage of net sales of automotive PWB


Net sales
by geographical segment


0billion yen


0billion yen

What are printed wiring boards?

Printed wiring boards (PWBs), also known as printed circuit boards, are fitted in all kinds of electronic equipment that we use and depend on in our everyday lives.PWB is the basis for the arrangement of other components in such equipment, and connects the components with each other by transmitting electrical signals.
Functioning like the skeleton and nervous system of the human body, PWB is a key device at the core of products powered by electricity.
Used in a wide range of places in our communities, PWBs connect people's livelihoods with our future.

printed wiring boards

Examples of places in which PWBs are used


Examples of places in which PWBs are used

  • Office buildings

    Office buildings

    Used in computers, multifunctional printers, telephones and smartphones, teleconferencing equipment, projectors, etc.

    Office buildings
  • Automotive


    Used in advanced driver-assistance systems such as dashboard camera, automatic braking systems, lane centering systems, millimeter-wave radar devices, digital camera sensors, infrared cameras, sonar monitoring units, etc.

  • Commercial facilities

    Commercial facilities

    Used in large video screens, digital signage, cash dispensers, ATMs, security cameras, etc.

    Commercial facilities
  • Train stations

    Train stations

    Used in electronic noticeboards, automatic ticket machines, digital signage, security cameras, etc.

    Train stations
  • Homes


    Used in televisions, air conditioners, smartphones, tablet PCs, video game consoles, smart appliances, smart meters, etc.

  • Fitness facilities

    Fitness facilities

    Used in compact and thin substrates for smart watches and smart glasses equipped with communication and healthcare functions.

    Fitness facilities

CMK's competitive advantages

  • 01
  • High quality and High reliability
    • Our strengths lie in power train and control system technology, which must be utterly reliable because driving, turning and stopping the vehicle are the some of the most critical of automotive functions.
    • Global top share in HDI PWBs for automotive use.
  • Manufacturing operations capable of ensuring high quality and reliability
  • 02
  • Ability to satisfy customer needs
    • Product analysis capabilities and adaptiveness to customer needs based on extensive technical expertise and longstanding experience.
    • Long-term supply and quality assurance system supported by stable financial base.
    • Sharing of roadmaps with major automotive parts suppliers.
  • A strong track record in meeting the needs of customers
  • 03
  • Many years of expertise
    • More than 50 years as a manufacturer specializing in PWBs.
    • More than 30 years of experience in PWBs for automotive use.
  • Many years of expertise

Printed wiring board technology people can depend on

While commonly fitted in automotive components that are vital for driving, turning, and stopping vehicles, CMK's products are also used in environmental and infrastructure equipment needed for the future development of society, thereby contributing to people's safety and comfort.

Aiming to meet growing global demand

The automotive printed circuit board market has been expanding on the back of rising sales volume of new automobiles worldwide, the steady adoption of advanced driver-assistance systems that provide accident prevention and driver support functions, and the shift to next-generation vehicles that meet increasingly strict environmental regulations.

Targeting that market, the CMK Group has been working to raise productivity while boosting production capacity to meet a growing number of product orders. As the integration of electronic technologies in automobiles continues to advance, demand for automotive printed circuit boards is expected to rise even more in the future.In response to that growing demand, CMK decided to expand the factory of its subsidiary, CMK Corporation (Thailand) Co., Ltd., in an effort to bolster the Group's overall production capacity.By expanding its Thai factory, the CMK Group is poised to capitalize on growing global demand for automotive printed circuit boards and further boost earnings going forward.

Main operations of the CMK Group worldwide

Overseas(Sales office Factory)

  • CMK EUROPE N.V.LinkedIn

Japan(Sales office Factory)


CMK's quality and environmental management systems

In order to expand the supply of products globally, it is essential to have systems in place for ensuring a consistent level of quality for every product, regardless of which factory in the world manufactured it.For that reason, relevant companies of the CMK Group have acquired ISO 9001 certification, the international standard for quality management systems used worldwide, along with IATF 16949, the international standard for quality management systems in the automotive industry (replacing ISO/TS 16949). They have also acquired ISO 14001 certification, the international standard for environmental management systems.In order to more efficiently and effectively implement in-house management initiatives based on these international standards, the CMK Group has integrated its quality and environmental management systems and is ensuring their sound operations while continuously initiating improvements.

Measures for improving product at a consistent world-class level of quality

The CMK Group carries out reliability assessments of its products based on higher than average standards while taking into account how each of its product specifications are applied in the market and quality assurance periods. This approach enables the Group to deliver safe and dependable products to customers.

If a product does not meet the standards set in a reliability assessment, the causes are exhaustively studied and the results are relayed back to the factory that manufactured it for the purpose of further improving quality.

In the event a product defect is discovered, various kinds of analysis equipment installed in-house are used to analyze the causes, the results are accurately and promptly reported, and relevant countermeasures are implemented to prevent a recurrence. By applying this expertise, the CMK Group works to improve quality so that it can manufacture products at a consistent level of quality.