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POSCO Gwangyang steel plant

operating

Gwangyang, Asia Pacific, South Korea

ISO 14001ISO 50001
GEM wiki

Process Route

BFBOF

Timeline

Construction1985
Operating1987

Emissions

2025

33.2 Mt CO₂e

1.90 t CO₂e per tonne of steel

Typical BF-BOF route: 1.8–2.0 t/t

Modelled estimate (Climate TRACE), not reported data. Methodology

Capacity (ttpa)

Crude Steel

22,999

BOF

22,999

Blast Furnace

24,750

Sinter

8,826

Coking

2,850

Production

Crude steelproduction, GEM-compiled (Global Iron & Steel Tracker). Dashed line shows nominal capacity.

Iron Units

BF
BF 1operating
5,650 ttpa6000 m³ · relined 2013Davy International; POSCOwiki
BF
BF 2operating
4,500 ttpa4350 m³ · relined 2003Davy International; POSCOwiki
BF
BF 3operating
4,600 ttpa5500 m³ · relined 2020Davy International; POSCOwiki
BF
BF 4operating
5,000 ttpa5500 m³ · relined 2022Davy International; POSCO; Paul Wurth (parts)wiki
BF
BF 5operating
5,000 ttpa5500 m³ · relined 2016Davy International; POSCOwiki
DRI
unknown DRI (1)announced
hydrogen · in-usewiki

Steel Units

EAF
unknown EAF (1)construction
2,500 ttpa280 tTenova and ABBwiki
BOF
unknown BOF (1)operating
2,867 ttpawiki
BOF
unknown BOF (2)operating
2,867 ttpawiki
BOF
unknown BOF (3)operating
2,867 ttpawiki
BOF
unknown BOF (4)operating
2,888 ttpawiki
BOF
unknown BOF (5)operating
2,888 ttpawiki
BOF
unknown BOF (6)operating
2,888 ttpawiki
BOF
unknown BOF (7)operating
2,867 ttpaPOSCO E&Cwiki
BOF
unknown BOF (8)operating
2,867 ttpaPOSCO E&Cwiki

Inputs & Energy

Power 4 generation plants each with 2 energy generation facilities (for a total of 8)

Iron ore Imported from Australia

Met coal Imported from Australia

Steel Products

galvanized, wire rod, plate, cold rolled, hot rolled

Ownership

Owner POSCO Holdings Inc

Parent POSCO Holdings Inc [100.0%]

Workforce 4,080 employees

State ownership Partial

Country Context

South Korea crude steel production (USGS). Plant line shows nominal capacity, not output.

Explore

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Plant data sourced from the Global Iron & Steel Tracker (March 2026), Global Energy Monitor. Licensed under CC BY 4.0.

Production data: USGS Minerals Yearbook — Raw Steel: World Production by Country or Locality (2019 edition; 2022 and 2023 early release tables). U.S. Geological Survey, public domain. EAF/BOF splits: USGS Minerals Yearbook (2023 estimates).

Facility emissions estimates from Climate TRACE. Licensed under CC BY 4.0.