Sejin T.S Competitors and Similar CompaniesClear all

Sejin T.S's competitors and similar companies include Optimax Systems, Olympus, Champ Tech Optical (Foshan) and Sunny Optical Technology.

	Sejin T.S Sejin T.S is a company that produces and sells specialty functional base film products.	Optimax Systems Optimax Systems is a company that designs and manufactures optical components.	Olympus Olympus is a medical technology company that manufactures optical and digital precision technology products.	Champ Tech Optical (Foshan) Champ Tech Optical (Foshan) (全亿大科技 (佛山) 有限公司) is a company that manufactures optical element products.	Sunny Optical Technology Sunny Optical Technology Group (舜宇光学科技（集团）有限公司) is an optical manufacturer.
Founding Date	Founding Date 1990	Founding Date 1991	Founding Date 1970	Founding Date 2005	Founding Date 1984
Type	Type Public	Type Private	Type Subsidiary	Type Subsidiary	Type Public
Tags	Tags Manufacturing & Industrial optics printing	Tags Manufacturing & Industrial lasers optics	Tags Healthcare medical devices medical imaging medtech	Tags Manufacturing & Industrial optics	Tags Manufacturing & Industrial electronics optics
Locations	Locations Anseong, KR HQ	Locations Ontario, US HQ	Locations Southend-on-Sea, GB HQ	Locations Fo Shan, CN HQ	Locations Yuyao, CN HQ
Employees	Employees 38	Employees 2824% increase	Employees 445	Employees 2,62612% decrease	Employees 33,884
Financial
Revenue (est.)	Revenue (est.) ₩11.9b (FY, 2025)	Revenue (est.) N/A	Revenue (est.) N/A	Revenue (est.) N/A	Revenue (est.) ¥43.2b (FY, 2025)
Cost of goods	Cost of goods ₩9b (FY, 2025)	Cost of goods N/A	Cost of goods N/A	Cost of goods N/A	Cost of goods ¥32.3b (FY, 2025)
Gross profit	Gross profit ₩2.9b (FY, 2025)	Gross profit N/A	Gross profit N/A	Gross profit N/A	Gross profit ¥11.4b (FY, 2025)
Net income	Net income ₩714m (FY, 2025)	Net income N/A	Net income N/A	Net income N/A	Net income ¥4.8b (FY, 2025)