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KS Posco Cilegon steel plant

operating

Cilegon, Asia Pacific, Indonesia

ISO 14001
GEM wiki

Process Route

BFBOF

Timeline

Announced2009
Construction2010
Operating2013

Emissions

2025

4.29 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

3,000

BOF

3,000

Blast Furnace

3,000

Coking

1,320

Iron Units

BF
BF 1operating
3,000 ttpa3800 m³POSCO E&Cwiki
BF
unknown BF (1)announced
3,000 ttpawiki

Steel Units

BOF
unknown BOF (1)operating
3,000 ttpaPOSCO E&Cwiki
BOF
unknown BOF (2)announced
3,000 ttpawiki

Inputs & Energy

Power 200 MW Captive power plant; commissioned 1.6GW solar plant,

Steel Products

slab, pig iron, cast iron, plate

Ownership

Owner PT Krakatau Posco

Parent POSCO Holdings Inc [50.0%]; PT Krakatau Steel (Persero) Tbk [50.0%]

Workforce 2,746 employees

State ownership Partial

Country Context

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

Explore

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.