For more information on Sumitomo Gunma Holdings on how to register to become a client or find out more about our competitive commission structure please use the contact details below or alternatively fill in the contact form and a member of staff will reply to your queries within 1 - 2 business working days.

Sumitomo Gunma Holdings (SGH) clients should not include personal or sensitive information in email correspondence, nor should place trade requests through the mail, please contact your broker directly. 

Tokyo, Japan (HQ)
Switchboard: +81 3 4577 4640
Address: 13F Mita Kokusai Building, 1 Chome-4-28 Mita, Minato, Tokyo, 108-0073, Japan.
Email: i[email protected] 

Seoul, South Korea
Switchboard: +82 2 6433 9518
Address: 8F Tower 8, 7 Jongro 5 gil, Jongro-gu, Seoul, Korea.