Address: 1-12-18 Awaza, Nishi-ku, Osaka 550-0011, Japan
TEL: +81-(0)6-6110-1598, FAX: +81-(0)6-6110-1612
E-mail: silica@osaka-soda.co.jp

Address: 3858 Carson Street, Suite 126, Torrance, CA 90503, USA
TEL: +1-310-540-5312, FAX: +1-310-540-5332
E-mail: daiso_us@osaka-soda.co.jp

Address: Immermannstrasse 13, 40210, Dusseldorf, Germany
TEL: +49-(0)211-540-83025168, FAX: +49-(0)211-83025213
E-mail: gmbh@osaka-soda.co.jp