SEAH CSS produces cutting-edge industrial materials.
SEAH CSS was newly launched in 2015 as a member of the SEAH family from POSCO Special Steel, a specialty steel company.

With an annual steelmaking capacity of 1.2 million tons and a production scale of 1 million tons of products, SEAH CSS has contributed to the development of the automotive, machinery, and shipbuilding industries, and has produced and supplied various high-value-added special steels for cutting-edge industries such as power generation, petrochemical, semiconductor, nuclear power, defense, and aerospace.