Informa Markets Japan Co Ltd Japan Jewellery Association
Yamanashi Jewelry Association
Ministry of Economy, Trade and Industry, Japan External Trade Organization (JETRO),
Chamber of Commerce of Japan, Japan Pearl Promotion Society,
Japan Jewellery Designers Association, Platinum Guild International (PGI),
Japan Gold Metal Association, Japan Watch Importers Association,
All Japan watches jewelry glasses retail cooperative, The Men's Fashion Unity (MFU) The Japan Direct Marketing Association, Yamanashi prefecture, Kofu city,
Kofu Chamber of commerce & industry, Yamanashi Chuo Bank Ltd.