One Asia Securities Co.,Ltd.
03-6273-4201

Contact Us

If you would like to request documents or apply for an account, please contact us by phone or email.
We will send you the necessary forms and materials shortly.

INQUIRIES BY PHONE

Contact Us by Phone

Phone Inquiries:
03-6273-4201

One Asia Securities Co., Ltd.
3rd Floor, Nisshin Building
1-6-4 Kudan Kita, Chiyoda-ku, Tokyo 102-0073

INQUIRY FORM

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