Danamtechnology co., ltd.
DONGMYUNG LIGHTING CO., LTD.
Tongil EX-Electric Co., LTD.
KC Environmental Design Co., Ltd.
SAMHEE INSTRUMENT CO.,LTD
Seoul Semiconductor Co., Ltd.
Mutual Growth Industry Association
Korea Higt-tech Safety Industry Association
Korea Basic Science Institute, National Research Facilities & Equipment Center
SungPoong Solled Co.,Ltd.
semiwell electronics co.,ltd
Cheorwon Plasma Research Institute
KUM KYEONG Lighting Co.,Ltd.