- Minam Optical Co., Ltd.
 - Manufactures eyeglasses and sunglasses in metal, half, and rimless frames. - Handok
- Manufacturer and marketer of high-quality prescription and OTC medications.
- Meridian
- Developer of alternative medicine related medical equipments.
- Internet Cyber Dental Clinic
- Information for oral health.
- Meta Dental
- Manufactures gutta percha, absorbent paper points, laboratory products, and micro-handpieces.
- Miki Korea Co., Ltd.
- Offering easy to control grips, elevating foot rest with foot board wheel chairs, and drum or connection brakes.
- Suttong Medical Systems Division
- Medical researcher and technology developer of medical equipment and instruments including iris-diagnosis devices and laser therapy systems.
- International Optical Frame Co.
- Exporter and manufacturer of various kinds of optical frames and sunglasses.
- SK Enterprise Co.
- Exporter of advanced dental and hospital equipment and dry cleaning machines.
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