Founded in 2006 and listed on KOSDAQ in 2019, Duksan Techopia is a fine chemicals materials company operating semiconductor and display materials, secondary battery materials, and pharmaceutical intermediate businesses.
In semiconductors, its core product is hexachlorodisilane (HCDS), a precursor used in atomic layer deposition (ALD) processes, supplied mainly to Samsung Electronics' 3D NAND lines. In display, it supplies OLED emissive-layer organic material intermediates mainly to Samsung Display.
The secondary battery segment consists of electrolyte additives produced in-house and finished electrolyte products from subsidiary Deoksan Electera.
The pharmaceutical segment leverages peptide synthesis technology derived from OLED organic synthesis to supply intermediates for diabetes, MASH, and anti-cancer drugs to global CDMO clients.
According to brokerage reports, the 2025 revenue mix was approximately semiconductor 50%, OLED 35%, secondary battery 6%, pharma 5%, and other 4%, with the semiconductor and OLED segments together accounting for about 85% of sales.
The company supplies HCDS to Samsung Electronics' 3D NAND process and holds a 60-70% market share.
The battery segment is divided between its own electrolyte additive business and subsidiary Deoksan Electera's finished electrolyte products, with this year marking the start of full-scale operation at Deoksan Electera's Tennessee plant (100,000-ton capacity, roughly KRW 1 trillion in revenue potential).
Key customers include Samsung Electronics, Samsung Display, SK On, and multiple global pharmaceutical companies.