Fundokin Shoyu – Factory Tour
Fundokin Shoyu is a well-esteemed Japanese food manufacturer based in Oita Prefecture, Kyushu that produces high quality soy sauce, miso (fermented soybean paste) and salad dressing. The company operates three factories all in Oita.

Corporate Information
- Company: Fundokin Shoyu
- Foundation: 1861
- Location: Oita Prefecture
- Main Business: Manufacturing of soy sauce, miso and salad dressing

Fundokin Shoyu – Lean Characteristics
5S, Minimal Inventory, Just-In-Time Approach
Nestled in amongst the small rural city of Usuki is a food company operating at the forefront of manufacturing excellence in their industry. Founded in 1861, Fundokin Shoyu produces a range of miso paste, salad dressing and soy sauce products that not only taste exquisite, but carry with them a high brand value that is impressively marketed across Japan from this small city on the coast of Oita Prefecture.
Our tour captures the charm and history of this company by incorporating shop floor tours of its soy sauce, miso and salad dressing manufacturing plants. As these products are perishable in a highly competitive market, the volume of finished goods is kept to an absolute minimum through a just-in-time approach.
The level of standardization that has been achieved through its 5S activities must be seen to be believed. The salad dressing plant is a stand-out in this regard with 5S applied to every corner of the building.
Their continual commitment to waste elimination doesn’t stop in the factory either. It also extends to their office processes and environment.



Buenos Aires, Argentina
The March 2025 Lean Japan Tour was an incredible opportunity to experience Japanese culture and kaizen practices firsthand. I would rate my overall satisfaction with this tour as outstanding. Honestly, it is very difficult to identify areas for improvement in the program, as it is executed with such professionalism and extensive experience. The dedication and…
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Guangzhou, Guangdong, China
The training schedule is very tight and efficient, the class room training was practical and led by an experienced teacher from Toyota, and the tour visits covered a wide range of industries including car manufacturing, parts processing and healthcare.
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Shenzhen, Guangdong, China
I would like to thank the Shinka team. They have been doing very well since day one of the program notification. Their work is a demonstration of the lean principles of standard work and Plan, Do, Check and Action (PDCA). The Shinka team arranged factory visits to various tiers of the automotive industry and building…
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Nelson, New Zealand
I had several projects that I had been procrastinating on. They seemed too big, too complicated and I was actually struggling to know where to start. Without a word of a lie, after the first day I came back to my hotel room and wrote up the backbone of my strategy using the skills I…
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Denver, Colorado, United States
This was my third visit to Japan with Shinka Management and it is difficult for me to find the right words to express my gratitude for such a well-organized tour and my appreciation for the high quality and on-target content. In my previous visits I received very valuable information related to continuous improvement principles and…
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Lumut, Brunei
The tour shows how industries in Japan do continuous improvement in their respective companies. I think that such concepts could also be applied in other industries as well when applied correctly within its own framework. The tour also showcases some aspects of Japanese culture which I appreciate a lot as it provides insight into the…
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The Shinka Management Lean Japan Tour is a professional development program run several times annually. The program includes a mix of lean and kaizen seminars, hands-on lean training and visits to several benchmark lean companies. For further information and program dates, see the lean tour overview page.
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