DELTA TAU Data Systems Inc.

PMAC Japan (Japan Office)

Ningyocho Bldg. 6F, 3-6-7, Nihonbashi, Ningyocho, Chuo-Ku, Tokyo 103, Japan

TEL : +81-3-3665-6421

Delta Tau Korea (Korea Office)

+82-31-813-6156

USA Corporate Headquarters

21314 Lassen Street, Chatsworth, CA 91311. U.S.A

TEL : +1-818-998-2095

FAX : +1-818-998-7807