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Master Steel Jakarta Steel plant

operating

Cakung, Asia Pacific, Indonesia

GEM wiki

Process Route

EAF

Timeline

Operating since 1972

Emissions

2025

0.29 Mt CO₂e

0.27 t CO₂e per tonne of steel

Typical EAF route: 0.5–0.7 t/t

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

Capacity (ttpa)

Crude Steel

2,000

EAF

2,000

Steel Units

EAF
unknown EAF (1)operating
2,000 ttpa80 twiki

Inputs & Energy

Power natural gas

Steel Products

wire rod, rebar, sections, mesh, bar, channel, angle

Ownership

Owner PT The Master Steel MFG

Parent PT The Master Steel MFG [100.0%]

Workforce 2,000 employees

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.