- Actipass R & M Co., Ltd.
- Repeater,Waveguide Components,Passive Components,Active Components.
- Address:366, KWIRAE-RI, JUNG NAM-MYUM
- Hani Corporation
- Passive/ Active Components,Transformer,Deflection Yoke,Transformers,Speaker.
- Address:1695-5,Seocho-dong ,Seocho-gu
- SGC Technologies
- RF filters,Cavity filters,Multiplexer filters,LC Filters,Band Pass Filter,passive componet,Active Components.
- Address:212-2 Maeryoo-Ri Neungseo-Myun
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