Toa Koki’s Business ActivitiesOur business

World-class products

The first small Toa Koki Factory was founded in the former castle town of Kashima City, Saga Prefecture during World War II. The company overcame the hardships of war and the subsequent economic turmoil and finally established itself as a manufacturer of ship components that was able to provide support to the shipping industry both in Japan and overseas. One of its major products is large cylinder liners for diesel engines, which enjoy the largest share of the global market.

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Sophisticated technology

The main parts of diesel engine components are made of high-quality cast metal that demands the highest quality and precision. Thus, the manufacture of these products requires sophisticated technology and skill as well as quality management systems such as ISO 9001. The following is a description of some of the technological skills we have developed over the years.

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Our concept of environmental conservation

Toa Koki’s operations are conducted in accordance with the ISO 9001 quality management and ISO 14001 environmental management systems in order to provide satisfaction to customers and promote environmental conservation activities as a global corporation.

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Contributions to local communities

What kind of company is Toa Koki? This website provides easy-to-understand answers to that question. We also conduct tours of our factory for corporations and groups.

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“New Lifestyle” Declaration of Reassurance

TOA KOKI has issued its own Declaration of Reassurance in order to implement the Japanese government’s “New Lifestyle” initiative.

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Lines are open from 8 am to 5 pm on weekdays
[Headquarters/Tanda factory]
1430-30 Yamaura, Kashima, Saga

[Omuragata Factory]
305-2 Furueda, Kashima, Saga Prefecture 849-1321
Telephone: +81-954-63-1303

[Yokota Factory]
62-1 Takatsuhara, Kashima, Saga Prefecture 849-1311