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North Nippon Muroran Works steel plant

operating

Muroran, Asia Pacific, Japan

ISO 14001
GEM wiki

Process Route

BFBOFEAF

Timeline

Operating since 1909

Emissions

2025

2.11 Mt CO₂e

1.38 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

2,200

EAF

700

BOF

1,500

Blast Furnace

1,240

Production

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

Iron Units

BF
BF 2operating
1,240 ttpa3014 m³ · relined 2020wiki

Steel Units

EAF
EAF 1operating
700 ttpa100 twiki
BOF
unknown BOF (1)operating
750 ttpawiki
BOF
unknown BOF (2)operating
750 ttpawiki

Inputs & Energy

Power in-plant power generation, also provides power generated via by-product gas and coal to Hokkaido Electric Power

Iron ore Imported from Australia, Brazil and India

Met coal Australia and Canada

Steel Products

wire, bar

Ownership

Owner Nippon Steel Corp

Parent Nippon Steel Corp [100.0%]

Workforce 1,026 employees

Country Context

Japan 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.