Chemical tanker · Malta flag
ST HELEN: CO₂ emissions 2022–2025
IMO 9934151 EU ETS4 reporting years
- CO₂ reported 2025
- 5,507 t
- Fuel burned
- 1,751 t
- Distance
- 19,313 nm
- Time at sea
- 1,616 h
- Emitted at berth
- 7% of total
- Share of year under way
- 18%
ST HELEN against its type
It is one of 218 chemical tankers here under the Malta flag, 9.3% of the 2,344 on the register. The returns for 2022–2025 all give VALLETTA as port of registry.
Its 5,507 t of CO₂ for 2025 is close to the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 285.2 kg CO₂, 14% above the type median of 250.2 kg. It logged 1,616 hours at sea against a median of 2,106 hours for its type that year. 6.8% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 4 years with reported emissions, the highest was 2024 (7,190 t) and the lowest 2022 (3,639 t). Its efficiency percentile within the type went from 8 in 2022 to 28 in 2025 (lower is more efficient). Of the 8 comparable vessels listed below with a 2025 return, 6 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2022–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 5,507 | 1,751 | 19,313 | 1,616 | 373 | 285.2 | 10.6 | 28 |
| 2024 | 7,190 | 2,282 | 25,651 | 2,387 | 249 | 280.3 | 12.7 | 36 |
| 2023 | 7,154 | 2,268 | 26,656 | 2,436 | 580 | 268.4 | 9.6 | 13 |
| 2022 | 3,639 | 1,160 | 13,367 | 1,328 | 280 | 272.3 | 8.6 | 8 |
Vessel particulars
- IMO number
- 9934151
- Ship type
- Chemical tanker
- Flag state
- Malta per EU MRV 2025
- Port of registry
- Valletta MRV 2025
- Technical efficiency (design)
- EEDI (3.98 gCO₂/t·nm)
- Verifier
- RINA HELLAS LTD, Greece
- Accreditation
- 1325
- Compliance document issued
- 2026-04-08
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 372 of 1,348 qualifying chemical tankers by EEOI, at the 28th percentile. The dashed line is the type median, 14.4; this vessel reported 10.6.
EEOI divides emissions by transport work, which for this vessel and year was 519,563,208 tonne-miles over 19,313 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 51.3% higher than in 2022, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 23.4% while distance sailed fell 24.7%and CO₂ per nautical mile rose 1.7%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 5,593 t
- Methane (CH₄)
- 0.09 t
- Nitrous oxide (N₂O)
- 0.32 t
- Under EU ETS
- 2,941 t, 53% of total
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2022–2025, published by the European Commission.
This page draws on 4 MRV reporting years, an efficiency ranking and 1 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, a licensed photograph, a sanctions listing and US port state inspections.
Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.