Steel companies from around the world have been providing data for the wordsteel 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 2020, 104 steel companies and associations contributed to the data collection. Crude steel produced
by companies who reported on one or more indicators for fiscal year 2019 was 1,103 Mt, representing 59% of global crude steel production.

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

Environmental performance UNIT 2017 2018 2019
1 CO2 emissions Tonnes CO2/tonne crude steel cast 1.84 1.81 1.83
2 Energy Intensity GJ/tonne crude steel cast 19.85 19.54 19.84
3 Material efficiency % of materials converted to products & co-products 96.49 96.33 97.49
4 Environmental management systems (EMS) % of employees & contractors working in EMS-registered production facilities 96.55 97.08 97.15
Social performance 2017 2018 2019
5 Lost time injury frequency rate Injuries/million hours worked 0.97 0.84 0.83
6 Employee training Training days/employee 6.26 6.36 6.89
Economic performance 2017 2018 2019
7 Investment in new processes and products % of revenue 5.76 6.10 7.07
8 Economic Value Distributed % of revenue 95.36 93.84 98.02

The above indicator data was published in November 2020.

Membership 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 2010 - 2019 (10-year trends)


Environmental sustainability indicators


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

Indicators 1 and 2 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.