| Address | 202-25, Gwahakdanji-ro, Sacheon-myeon, Gangreung, si, Gangwon-do, Republic of Korea |
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| Contact | +82-33-650-9000 |
| Fax | +82-33-644-4744 |
| Address | 1106, IT Primere Tower, 88, Gasan digital 1-ro, Geumcheon-gu, Seoul, Republic of Korea |
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| Contact | +82-02-2621-1142 |
| Fax | +82-02-2621-1144 |
| Address | 23 (Gojan-dong), Hogupo-ro-120-gil, Namdong-gu, Incheon, Republic of Korea |
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| Contact | +82-32-812-4743 |
| Fax | +82-32-812-4744 |