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Contact Us

Head Office

507, Lordland EZ Tower
69, Seongnam-daero, Bundang-gu,
Seongnam-si, Gyeonggi-do, 13636, South Korea

Tel : +82-31-715-4144

Fax : +82-31-715-4145

gu@gu21.com / shpark@gu21.com

Busan Office

702, Seyoung Tower
24 Hwangnyeong-daero 492beon, Nam-gu,
Busan, 48510, South Korea

Tel : +82-51-628-4144

Fax : +82-51-628-4145

R&D and Testing Center

65 eilro, Cheoin-gu,
Yongin-si, Gyeonggi-do, South Korea