Gas carrier · Malta flag · built 2012
CAESAR: CO₂ emissions 2018–2025
IMO 9577991 MMSI 249224000EU ETS8 reporting years
- CO₂ reported 2025
- 4,655 t
- Fuel burned
- 1,462 t
- Distance
- 34,386 nm
- Time at sea
- 3,159 h
- Emitted at berth
- 6% of total
- Share of year under way
- 36%
CAESAR against its type
Built in 2012, it is 1 year older than the median gas carrier on this register, which was built in 2013 (530 vessels with a known build year). It is one of 59 gas carriers here under the Malta flag, 8.6% of the 688 on the register. Its MRV returns name it JS CAESAR for 2018–2022, CAESAR for 2023 and CGAS TIGER for 2024–2025. The reported port of registry changed: Singapore (2018–2023), then Valetta (2024), then VALLETTA (2025).
Its 4,655 t of CO₂ for 2025 is 22% below the median of 5,974 t among the 363 gas carriers on this register that reported for 2025. Per nautical mile it emitted 135.4 kg CO₂, 47% below the type median of 256.2 kg. It logged 3,159 hours at sea against a median of 1,943 hours for its type that year. 6.4% of its 2025 emissions were at berth; the median for gas carriers was 3.8%. Across 8 years with reported emissions, the highest was 2021 (5,716 t) and the lowest 2023 (3,610 t). Its efficiency percentile within the type went from 91 in 2018 to 94 in 2025 (lower is more efficient). Of the 8 comparable vessels listed below with a 2025 return, 2 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 | 4,655 | 1,462 | 34,386 | 3,159 | 299 | 135.4 | 112.5 | 94 |
| 2024 | 4,061 | 1,267 | 29,139 | 2,746 | 380 | 139.3 | 117.5 | 94 |
| 2023 | 3,610 | 1,126 | 27,188 | 2,344 | 501 | 132.8 | 105.4 | 88 |
| 2022 | 3,821 | 1,192 | 28,510 | 3,221 | 538 | 134.0 | 115.5 | 91 |
| 2021 | 5,716 | 1,783 | 49,766 | 5,505 | 460 | 114.8 | 91.7 | 81 |
| 2020 | 4,778 | 1,490 | 35,042 | 3,231 | 383 | 136.3 | 122.7 | 89 |
| 2019 | 5,007 | 1,570 | 31,312 | 5,665 | 621 | 159.9 | 140.4 | 93 |
| 2018 | 5,273 | 1,662 | 38,923 | 5,646 | 684 | 135.5 | 129.1 | 91 |
Vessel particulars
- IMO number
- 9577991
- Previously reported as
- JS CAESAR, CGAS TIGER
- MMSI
- 249224000
- Call sign
- 9HA6175
- Ship type
- Gas carrier
- Length overall
- 99.9 m
- Beam
- 18.0 m
- Year built
- 2012
- Flag state
- Malta per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Singapore. The flag shown is from the newest official source, the EU MRV return for 2025. - Port of registry
- VALLETTA MRV 2025
- Technical efficiency (design)
- EEXI (20.74 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-19
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 275 of 292 qualifying gas carriers by EEOI, at the 94th percentile. The dashed line is the type median, 27.9; this vessel reported 112.5.
EEOI divides emissions by transport work, which for this vessel and year was 41,386,558 tonne-miles over 34,386 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 11.7% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 14.6% while distance sailed rose 18.0%and CO₂ per nautical mile fell 2.8%.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
- 4,727 t
- Methane (CH₄)
- 0.07 t
- Nitrous oxide (N₂O)
- 0.26 t
- Under EU ETS
- 3,189 t, 69% of total
Observed movementsAIS · Norwegian waters
- First seen
- 28 Nov 2025
- Last seen
- 30 Nov 2025
- Days observed
- 3
- Positions
- 213
- Median speed
- 9.5 kn
Its recorded positions span 58.0°N to 59.3°N and 4.5°E to 6.2°E.
34 hourly points from 213 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Norwegian Coastal Administration open AIS, Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap means the vessel was not recorded here, not that it was idle or that a transponder was off.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | DNV | Germany |
| 2019 | Bureau Veritas Certification France | France |
| 2024 | DNV | Germany |
A change of verifier is not in itself a sign of anything being wrong.
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).
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 8 MRV reporting years, an efficiency ranking, 3 of 5 vessel particulars, AIS movements in Norwegian waters and a name history. Not found in the sources for this vessel: 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.