Steel sector data now available

Open asset-level
data & analysis

From emission estimates and ownership trees to production tracking — using AI to explore methods to scale up asset-level data analysis. Open data for climate accountability and transparency.

What is Open Assets?

A research collaboration between researchers at the University of Oxford and the University of Queensland, using AI to explore methods to scale up asset-level data analysis — making emission estimates, ownership trees, and production data openly available to researchers, investors, and policymakers worldwide.

AI-Powered Scaling

We use AI to extract, validate, and cross-reference data from annual reports, plant databases, ownership filings, and satellite observations — enabling asset-level analysis across hundreds of facilities that would be impossible manually.

Asset-Level Granularity

Analysis is built bottom-up from individual assets — tracking ownership structures, emission estimates, production, and technology at each facility. Not corporate averages, but plant-by-plant data.

Fully Open Data

All data, methodology, and code are openly available. We believe transparent emissions data is essential for holding the world's largest emitters accountable to their climate commitments.

26
Steel companies
800+
Plants tracked
2014–2024
Historical coverage
229
Company-year data points
First sector available

Steel Sector

The steel industry accounts for approximately 7% of global CO2 emissions. Our dataset covers 26 of the world's largest steel producers, tracking emissions from over 800 individual plants using asset-level data from GEM GIST.

  • Plant-level emissions using country-specific, time-varying emission factors
  • Technology-specific tracking: BF-BOF, EAF, and DRI processes
  • Cross-validated with ClimateTrace, company reports, and Kampmann ALD
  • Ownership trees with equity share and subsidiary tracking
View Steel Data

Companies Tracked

ArcelorMittal
Netherlands 1.78 tCO₂/t
Nippon Steel
Japan 1.97 tCO₂/t
POSCO Holdings
South Korea 1.64 tCO₂/t
Tata Steel
India 2.65 tCO₂/t
Nucor
United States 0.04 tCO₂/t
JSW Steel
India 3.05 tCO₂/t
ThyssenKrupp
Germany 1.63 tCO₂/t
Baoshan Iron & Steel
China 1.88 tCO₂/t
+ 18 more companies

More Sectors & Analysis Coming

We're expanding asset-level coverage across high-emitting sectors, with deeper analysis including ownership trees, production tracking, and emission estimates.

Power

Coal and gas-fired power stations

In development
🏗

Cement

Clinker kilns and grinding plants

In development
🛢

Fossil Fuels

Oil, gas, and coal producers

In development