Head Office
 

+82 31 491 2284

  +82 31 491 2287   sde@seondo.co.kr
Seoul Branch
   Office
 

+82 02 544 8977

  +82 02 544 1247   sale@seondo.co.kr
Research
   Center
 

+82 31 493 7500

  +82 31 491 1540   rd@seondo.co.kr
Product
   Questions
 

+82 2 544 8977

  +82 2 544 1247   sale@seondo.co.kr
Technology
   Questions
 

+82 31 491 9661

  +82 31 491 2610   tech@seondo.co.kr
A/S Questions
 

+82 31 491 4595~6

  +82 31 491 1966   as@seondo.co.kr