Updated October 2026
| Rating | Emission intensity (tCO₂e per tonne of finished steel) |
|---|---|
| 5 stars | Below 1.6 |
| 4 stars | 1.6 to 2.0 |
| 3 stars | 2.0 to 2.2 |
| Not green-rated | Above 2.2 |
Key facts
- The Ministry of Steel launched the taxonomy on 12 December 2024.
- The National Institute of Secondary Steel Technology (NISST) verifies emissions and issues ratings.
- The rating applies from FY 2026-27 and is reviewed every three years.
- 39 producers had applied for certification by mid-2025.
Why it matters
The government plans to favour rated steel in public procurement, and state steel orders are expected to reach 67–73 million tonnes a year by 2030-31. A better rating can mean a place on more tenders. Biochar in the kiln or furnace is one of the quickest ways to lower emission intensity. Biochar for steel plants