CH Trading Corporation
2639 Hawthorne Blvd., Suite 204
Torrance, CA 90505, USA
PHONE: (310) 530-7800  FAX: (310) 530-7805
Contact: Charles C. Oh
E-mail Address: chtrdcorp@sbcglobal.net

C H Trading local sales office In Korea
Seongwoo Instruments, Inc. 
Room 204, 277-2 Seoksu-Dong, Manan-Gu
Anyang City, Kyunggi-Do, Korea 430-805
PHONE: 031-471-5800  FAX: 031-471-5115
E-mail Address: swi@seongwooinst.com
Contact:
Mr. Won Sik Seo, General Manager & V.P.
Cell Phone: 010-3354-5115