| Headquarters | |
| 2-5-60,Higashi Omichi,Oita,Oita,Japan Zip870-0823 Tel +81-97-544-1001 Fax +81-97-554-5035 Email: hsales@i-kk.co.jp |
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| Tokyo Sales Office | |
| 2-7-12,Hamamatsucho,Mlnatoku,Tokyo,Japan Zip105-0013 Tel +81-3-6430-3100 Fax +81-3-6430-3103 |
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| Kumamoto Sales Office | |
| 7-1-81,Musashigaoka,Kumasmoto,Japan Zip862-8001 Tel +81-96-339-6613 Fax +81-96-386-3108 |
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| Oita Magari Plant | |
| 937-1,Aza Kawanari,Oaza Magari,Oita,Oita,Japan
Zip870-0946 Tel +81-97-557-0011 |
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| Kitsuki Plant | |
| 2264,Aza Noda,Oaza Hino,Kitsuki,Oita,Japan
Zip873-0013 Tel +81-9786-3-2278 Fax +81-9786-4-0054 |
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