Chemical tanker · Liberia flag · built 2009
CLEAN SANCTUARY: CO₂ emissions 2018–2025
IMO 9430260 EU ETS4 reporting years
- CO₂ reported 2025
- 4,670 t
- Fuel burned
- 1,466 t
- Distance
- 9,898 nm
- Time at sea
- 846 h
- Emitted at berth
- 6% of total
- Share of year under way
- 10%
- Gross tonnage
- 29,130
CLEAN SANCTUARY against its type
Built in 2009, it is 1 year older than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 29,130 gross tonnage it is larger than 67% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 402 chemical tankers here under the Liberia flag, 17.2% of the 2,344 on the register. The same builder is recorded for 983 other vessels here, 330 of them chemical tankers. Its MRV returns name it FALCON MARYAM for 2018–2021 and CLEAN SANCTUARY for 2022–2025. The returns for 2018–2025 all give Monrovia as port of registry.
Its 4,670 t of CO₂ for 2025 is 16% below the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 471.8 kg CO₂, 1.9 times the type median of 250.2 kg. It logged 846 hours at sea against a median of 2,106 hours for its type that year. 6.2% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 4 years with reported emissions, the highest was 2022 (12,574 t) and the lowest 2025 (4,670 t). Its efficiency percentile within the type went from 69 in 2018 to 74 in 2025 (lower is more efficient). Of the 5 sister ships listed below with a 2025 return, 5 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 4,670 | 1,466 | 9,898 | 846 | 289 | 471.8 | 22.7 | 74 |
| 2022 | 12,574 | 3,991 | 32,007 | 3,281 | 1,314 | 392.9 | 15.3 | 48 |
| 2021 | 5,268 | 1,680 | 14,810 | 1,235 | 1,067 | 355.7 | 15.6 | 48 |
| 2018 | 6,781 | 2,164 | 19,084 | 2,679 | 232 | 355.3 | 20.9 | 69 |
Vessel particulars
- IMO number
- 9430260
- Previously reported as
- FALCON MARYAM
- Ship type
- Chemical tanker
- Gross tonnage
- 29,130
- Length overall
- 183.0 m
- Beam
- 32.2 m
- Year built
- 2009
- Flag state
- Liberia per EU MRV 2025
- Builder
- HD Hyundai Mipo
- Port of registry
- Monrovia MRV 2025
- Technical efficiency (design)
- EEXI (5.12 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-03-11
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,003 of 1,348 qualifying chemical tankers by EEOI, at the 74th percentile. The dashed line is the type median, 14.4; this vessel reported 22.7.
EEOI divides emissions by transport work, which for this vessel and year was 205,729,075 tonne-miles over 9,898 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 31.1% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2019, 2020, 2023, 2024, so the series has gaps.
From 2022 to 2025, emissions fell 62.9% while distance sailed fell 69.1%and CO₂ per nautical mile rose 20.1%.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
- 4,742 t
- Methane (CH₄)
- 0.07 t
- Nitrous oxide (N₂O)
- 0.26 t
- Under EU ETS
- 2,663 t, 57% of total
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 4 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and a name history. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.