Founded in 1973 and designated a POSCO hot-rolled coil distributor in 1975, Moonbae Steel has operated in steel distribution and processing on the KOSPI for over five decades.
The company grew to lead the steel distribution industry as a POSCO hot-rolled sales agency for 50 years, establishing its status as a hot-coil manufacturer and processor by setting up Steel Service Centers in Gwangyang and Sihwa in the 1990s.
It produces primary steel products such as skelp, steel plate, and shape steel, while also running a real estate leasing business that generates stable rental income.
As of March 2026, its revenue mix was 73% from product sales, 24% from merchandise sales, 2% from rental revenue, and 1% from processing fees, with self-manufactured products accounting for the bulk of sales.
Korea's steel market has major players like POSCO, Hyundai Steel, and Dongkuk Steel supplying large buyers directly, while their sales agencies serve smaller buyers; for hot-rolled products, POSCO's agencies traditionally held the market lead, though competition has intensified with Hyundai Steel's entry.
Since six companies including Moonbae Steel were designated as POSCO hot-rolled agencies in 1975, a total of eight agencies now compete in the market.
Its affiliate NI Steel was acquired in 2011 while under corporate rehabilitation, making Moonbae Steel its largest shareholder, with the combined stake of the company and related parties reaching a substantial level. The company currently holds four equity-method affiliates.
Its market share is around 8.94%, competing with POSCO, Hankuk Steel, and Dongyang S-Tech, amid fluctuating exports and imports tied to the business cycle and intensifying competition from China, India, and other emerging producers.