Steel companies from around the world have been reporting to worldsteel on sustainability indicators since 2004.

These indicators provide a systematic way of measuring key aspects of our economic, environmental and social performance on a yearly basis.

In 2019, 85 steel companies contributed data for fiscal year 2018. Crude steel produced by companies who reported on one or more indicators was 970 Mt, representing 56% of global crude steel production.

Access to the worldsteel data collection platform is open exclusively to worldsteel member companies.


Environmental performance UNIT 2016 2017 2018
1 Greenhouse gas emissions Tonnes CO2/tonne crude steel cast 1.88 1.83 1.85
2 Energy Intensity GJ/tonne crude steel cast 20.3 19.9 20.2
3 Material efficiency % of materials converted to products & co-products 97.5 96.3 96.3
4 Environmental management systems (EMS) % of employees & contractors working in EMS-registered production facilities 97.1 96.8 95.8
Social performance 2016 2017 2018
5 Lost time injury frequency rate Injuries/million hours worked 1.01 0.97 0.84
6 Employee training Training days/employee 7.0 6.1 6.4
Economic performance 2016 2017 2018
7 Investment in new processes and products % of revenue 13.0 5.9 6.0
8 Economic Value Distributed % of revenue 98.8 97.0 93.9

Indicator 1 & 2 were updated in January 2020.

The data collection commences in June and is reported in the same year.

The average indicator results, participation by indicator, as well as performance trends are provided below.



Indicators 2009 - 2018 (10-year trends)


Environmental sustainability indicators


Indicators 1 & 2 (Greenhouse gas emissions and Energy intensity):

Data is provisional (p) for indicators 1 & 2.

These indicators are calculated using route-specific energy and CO2 intensity for the basic oxygen furnace and electric arc furnace. The indicators are also weighted based on the production share of each route. Indicator 1 includes CO2 emissions only as these make up approximately 93% of all steel industry greenhouse gas emissions.

Social sustainability indicators


Indicator 5: Lost time injury frequency rate includes fatalities and is calculated based on figures including contractors and employees.

Economic sustainability indicators


Indicator 7: Investment in new processes and products includes capital expenditure and R&D investment.


Indicator 8: Data collection for Economic Value Distributed started in 2007.