Chang Woo, Inc.11F, (YEOUIDO-DONG) 18, | Coretech Corporation2nd floor, Geomyung Bldg., |
| Tel: +82-2-782-9056 Fax: +82-2-782-9058 Email: | Tel: +82-31-753-5316 Fax: +82-31-753-5343 Email: |
| www.changwooinc.com/ | http://www.coretk.com/ |
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Chang Woo, Inc.11F, (YEOUIDO-DONG) 18, | Coretech Corporation2nd floor, Geomyung Bldg., |
| Tel: +82-2-782-9056 Fax: +82-2-782-9058 Email: | Tel: +82-31-753-5316 Fax: +82-31-753-5343 Email: |
| www.changwooinc.com/ | http://www.coretk.com/ |