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Seoul Branch Office

  • Address8F, 18, Teheran-ro 83-gil, Gangnam-gu, Seoul, 06169, Republic of Korea
  • TEL+82 2-555-1536
  • FAX02-3142-7670
  • Emailbestgcs@gcsgroup.co.kr

Seongnam Headquarters

  • Address#1008 Seonil Technopia, 555 Dunchon-daero,
    Jungwoon-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
  • TEL+82 2-555-1536
  • FAX02-3142-7670
  • Emailbestgcs@gcsgroup.co.kr