2007

Aug. 22

Opening new HwaGok-Dong  plant.

2003

Jan. 18

RClean Plant. Approval

2002

Nov. 11

 Patent  (0033046), (003347), (0033048), (0303303)

2001

June. 20

6-CD Auto Changer Mixer Amplifier  R&D.

2000

Nov 30

Permitted ISO-9001 Quality System Approval

Apr 06

bright prospect  smaller enterprises

Apr 05

Membership 'NSCA

1996

Oct. 11

Patent  (100140)

 1993

June. 19

Patent  (10879)

May. 13

Registered Manufacturing / AC Electronics  Approval

1991

June. 15

Unified Amplifier R.&D.

1990

June. 25

GEMCO Modular Amplifier. R&D. U.S.A. Exportation

May. 20

O.A  Test system.

1989

Nov. 14

University sound modular Amplifier R&D. U.S.A.  Exportation

Mar. 20

U/L  Approval (E 77956)

1985

Feb. 16

Registered foreign trade business U.S.A.  Exportation FANON

Jan. 05

Start business as Suhyoon  Electronics Eng Inc.,