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U.S. Steel Big River Steel plant

operating

Osceola, North America, United States

ISO 14001ResponsibleSteel
GEM wiki

Process Route

EAF

Timeline

Construction2014
Operating2016

Emissions

2025

0.71 Mt CO₂e

0.17 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

6,022

EAF

6,022

Production

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

Iron Units

DRI
unknown DRI (1)announced
syngas (reformed methane)wiki

Steel Units

EAF
unknown EAF (1)operating
1,650 ttpa165 tSMSwiki
EAF
unknown EAF (2)operating
1,650 ttpa165 tSMSwiki
EAF
unknown EAF (3)operating
1,361 ttpaSMSwiki
EAF
unknown EAF (4)operating
1,361 ttpaSMSwiki

Inputs & Energy

Power "renewable and nuclear power"

Iron ore US Steel Mine Ore Facility

Steel Products

hot rolled, cold rolled, galvanized, electrical

Ownership

Owner Big River Steel LLC

Parent Nippon Steel Corp [100.0%]

Workforce 745 employees

Country Context

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

Explore

All 740 EAF plants like this one→

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.