- DigiTech Systems Co., Ltd.
- Specializes in touch technology – panels, monitors, and controllers.
- EstechPharma Co., Ltd.
- Provides product updates and catalog, plus details on R&D activities and company overview.
- GA Korea Tech Co., Ltd.
- Manufactures signage materials including G-flexes and LEP flexes, banners, awning, and sheets.
- Hansu Ltd.
- Produces cooling and boiler water and R/O treatment chemicals, plus environment and paper mill chemical agents.
- InkTec Co., Ltd.
- Provides product information and catalog, company overview and news, refilling method details, and downloadable InkTec software.
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