- 주소
- 서울시 중구 퇴계로 272 아도라타워 5층
- 전화
- 070-7204-3119
- 팩스
- 02-2275-2995
As an official notation method of HNX(Extreme Challenge), Black represents HNX's strong sense of challenge and trust, which makes tomorrow brighter like a shadow that makes the light shine even more. Yellow stands for a dynamic, bright tomorrow that HNX offers to its customers.