SN MAIA - Siderurgia Nacional, S.A
SN MAIA - Siderurgia Nacional, S.A is a production of pig iron or steel installation in Portugal. In 2025 it reported 47,983 tonnes of verified emissions against 42,596 free allowances.
Key figures
Country
Activity
Installation ID
PT 171
Verified emissions, 2025
47,983 tCO₂e
Free allocation, 2025
42,596 allowances
Allowance position, 2025
5,387 short
Compliance, 2024
A
Permit
150
Data as of
1 April 2026
Emissions and free allocation by year
| Year | Verified emissions (t) | Free allocation | Position |
|---|---|---|---|
| 2025 | 47,983 | 42,596 | 5,387 short |
| 2024 | 52,419 | 40,421 | 11,998 short |
| 2023 | 50,258 | 41,324 | 8,934 short |
| 2022 | 45,364 | 44,042 | 1,322 short |
| 2021 | 49,453 | 45,310 | 4,143 short |
| 2020 | 54,874 | 79,656 | 24,782 surplus |
| 2019 | 52,806 | 81,334 | 28,528 surplus |
| 2018 | 53,091 | 83,005 | 29,914 surplus |
| 2017 | 52,414 | 84,656 | 32,242 surplus |
| 2016 | 64,292 | 86,291 | 21,999 surplus |
| 2015 | 74,153 | 87,908 | 13,755 surplus |
| 2014 | 59,873 | 89,509 | 29,636 surplus |
| 2013 | 57,715 | 91,091 | 33,376 surplus |
Verified emissions changed by -16.9% from 2013 to 2025.
Source: European Commission, Union Registry · Data as of 1 April 2026
Allowance position
In 2025, verified emissions exceeded free allocation by 5,387 allowances, which the operator had to obtain.
Illustrative value at the latest reference price of €85.90 (28 September 2026): €462,743. Not the installation's actual cost, which depends on when and how it acquired allowances.
Price source: EU ETS primary auctions · latest price
Compliance status for 2024: A. The number of allowances surrendered by 30 September 2025 was greater than or equal to verified emissions.
CBAM context
This activity falls in the iron and steel sector of the Carbon Border Adjustment Mechanism. Free allocation for products covered by the Carbon Border Adjustment Mechanism is being reduced each year under current EU law.
| 2026 | 2027 | 2028 | 2029 | 2030 | 2031 | 2032 | 2033 | 2034 |
|---|---|---|---|---|---|---|---|---|
| 97.5% | 95% | 90% | 77.5% | 51.5% | 39% | 26.5% | 14% | 0% |
Share of free allocation remaining for CBAM-covered products, under Directive (EU) 2023/959, Article 10a. It applies to the benchmarks for those products, not necessarily to an installation's whole allocation, so it is not applied to the figures on this page.
Proposed change
A European Commission proposal of 17 July 2026 would restore 15% of the phased-out free allocation for CBAM sectors from 2028 and extend the end of the phase-out from 2034 to 2038. This is a proposal and not yet law.
More on CBAM: the India CBAM Center and what CBAM is and how it works.
Nearby installations
Production of pig iron or steel installations in Portugal, largest first.
- SN SEIXAL - Siderurgia Nacional,S.A 91,280 t in 2025
Questions about SN MAIA - Siderurgia Nacional, S.A
How much did SN MAIA - Siderurgia Nacional, S.A emit in 2025?
47,983 tonnes of verified emissions, per EU Union Registry compliance data.
How many free allowances did SN MAIA - Siderurgia Nacional, S.A receive?
42,596 in 2025.
Did SN MAIA - Siderurgia Nacional, S.A surrender enough allowances?
Its compliance status for 2024 is recorded as "A": The number of allowances surrendered by 30 September 2025 was greater than or equal to verified emissions.