| Type: | National |
| Established: | 1875 |
| Website: | www.ocha.ac.jp/en/index.html |
| Grading system | |
| Location: |
大塚 2-1-1
Bunkyo-Ku ( 文京区 ) 112-8610 Tokyo-To Japan |
| Phone: | 03-5978-5106 |
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