Optrontec is an optical components specialist that manufactures and sells camera image-sensor filters for smart devices, optical lenses and lens modules for digital cameras, CCTV and automotive use, and mobile filters.
In the first half of 2026, optical zoom modules accounted for the largest share of revenue at KRW 58.9bn (48.3%), followed by image-sensor filters at KRW 34.2bn (28.1%) and optical lenses and modules at KRW 25.6bn (21.0%).
Its main customers include domestic and overseas smartphone makers, CCTV companies and automakers, with growth recently driven by new film-filter supply for premium smartphones and folded-zoom-related components.
The company acquired Haesung Optics in 2021 to internalize actuators, one of the three core camera-module components alongside lenses and filters, pursuing vertical integration.
Production is centered on its subsidiary in Vinh Phuc, Vietnam, where new OIS (optical image stabilization) assembly lines have recently been built to begin mass production for Chinese and domestic customers.
In the automotive segment, the company supplies autonomous-driving sensing camera lens units to a North American automaker, expanding beyond a smartphone-centric business into mobility and robotics markets.
It has also expanded into the defense sector after receiving a production order for optical components used in military drones from a European defense company.
The competitive landscape overlaps with domestic camera-module and component makers such as MCNEX, Sekonix, Partron and Actro, and Optrontec is understood to have maintained a leading domestic position in optical filters and prisms based on its technology gap.