- Sealogic Inc.
- Telecommunication, Fiber Mux, Media Converter, Digital Audio Broadcasting.
- Address:493-6, Gasan-dong, Gumchon-ku Seoul Seoul 152-886 Korea
- Starwaves
- Digital Receivers, Transmitters, Broadcasting Equipment,Radio,Car Audio.
- Address:Muendersche Str. 27
- HANSOL21
- Hansol, Digital broadcasting Solution, Digital video, Digital audio.
- Address:293-1 Geoyeo-dong Songpa-gu Seoul 138-110 Korea
- Seolim Precision Ind. Co., Ltd.
- Machinery parts, burglar alarm, media converter, digital audio broadcasting.
- Address:292-229, Shindorim-dong Guro-gu Seoul 110-430 Korea
- Maycom Co., Ltd.
- MP3 Player, Digital Recorder, Digital Audio Broadcasting, GSM Mobile phone,MP3 Player,Digital Voice Recorder.
- Address:Maycom B/D, 280-5 Seoksu 2-Dong, Manan-Gu
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