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CONTACT US

JAPAN GEM RESEARCH LABORATORY

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〒110-0005

7F-B Nakada Bldg., 5-15-15 Ueno,Taito-ku, Tokyo

Tel: 03-6630-6569​

Email:jgrl.japan@gmail.com

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Reception hours:

10:30 – 17:30 (Monday – Friday)

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