Value through Innovation
Established Oriental Chemical Industries
Completed Incheon Soda Ash Plant

Completed Iksan hydrogen peroxide plant

Established R&D Center in Incheon

Completed TDI plant

Renamed as DC Chemical
Renamed as OCI

Acquired Tokuyama Malaysia Polysilicon Plant
Started high-softening-point pitch business

Inaugurated OCI Holdings


To proactively respond to climate change, OCI Holdings is carrying out eco-friendly management and strategies, and fulfills corporate social responsibility with biodiversity and forest protection activities.
Read moreWe operate 'Collage,' a health dining cafe where people with and without disabilities work together, and 'Dream Ensemble,' a classical music group composed of musicians with developmental disabilities.
Read moreOCI Holdings establishes systematic plans and operates programs for company-wide safety and health management. We strive to earn the trust of shareholders, customers, members and suppliers by establishing sound and robust governance.
Read moreOCI Holdings Achieves ‘A’ Rating in MSCI ESG Ratings for Three Consecutive Years
2026.04.09
OCI Holdings Secures $125 Million IFC Financing for Semiconductor Polysilicon Expansion in Malaysia
2026.03.30
OCI Holdings Secures 65% Stake in Vietnam Wafer Plant
2025.10.13