Chemical tanker · Hong Kong flag · built 2013
UNIQUE INFINITY: CO₂ emissions 2019–2023
IMO 9540833 MMSI 4776314005 reporting years
- CO₂ reported 2023
- 2,449 t
- Fuel burned
- 782 t
- Distance
- 9,603 nm
- Time at sea
- 787 h
- Emitted at berth
- 4% of total
- Share of year under way
- 9%
- Gross tonnage
- 29,479
UNIQUE INFINITY against its type
Built in 2013, it is 3 years newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 29,479 gross tonnage it is larger than 74% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 65 chemical tankers here under the Hong Kong flag, 2.8% of the 2,344 on the register. The returns for 2019–2023 all give Hong Kong as port of registry.
Its 2,449 t of CO₂ for 2023 is 55% below the median of 5,393 t among the 1,411 chemical tankers on this register that reported for 2023. Per nautical mile it emitted 255.0 kg CO₂, close to the type median of 258.0 kg. It logged 787 hours at sea against a median of 1,919 hours for its type that year. 4.3% of its 2023 emissions were at berth; the median for chemical tankers was 8.2%. Across 3 years with reported emissions, the highest was 2019 (5,415 t) and the lowest 2023 (2,449 t). Its efficiency percentile within the type went from 9 in 2019 to 2 in 2023 (lower is more efficient).
Emissions by year2019–2023
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2023 | 2,449 | 782 | 9,603 | 787 | 105 | 255.0 | 7.2 | 2 |
| 2022 | No EU/EEA voyages reported | |||||||
| 2021 | No EU/EEA voyages reported | |||||||
| 2020 | 4,503 | 1,426 | 16,700 | 1,308 | 226 | 269.6 | 14.4 | 42 |
| 2019 | 5,415 | 1,731 | 21,039 | 2,720 | 281 | 257.4 | 8.9 | 9 |
Vessel particulars
- IMO number
- 9540833
- MMSI
- 477631400
- Ship type
- Chemical tanker
- Gross tonnage
- 29,479
- Length overall
- 183.0 m
- Beam
- 32.0 m
- Year built
- 2013
- Flag state
- Hong Kong Wikidata/AIS, undated
- Port of registry
- Hong Kong MRV 2023
- Technical efficiency (design)
- EEDI (5.38 gCO₂/t·nm)
- Verifier
- AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
- Accreditation
- 1083-2
- Compliance document issued
- 2024-06-13
- Compliance document expires
- 2025-06-30
Efficiency against its own type2023
Position 32 of 1,230 qualifying chemical tankers by EEOI, at the 2nd percentile. The dashed line is the type median, 15.6; this vessel reported 7.2.
EEOI divides emissions by transport work, which for this vessel and year was 341,553,696 tonne-miles over 9,603 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2023 was 54.8% lower than in 2019, for EU/EEA voyages only.
From 2020 to 2023, emissions fell 45.6% while distance sailed fell 42.5%and CO₂ per nautical mile fell 5.4%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2023 emissions occurred
Laden voyages2023
- CO₂ on laden voyages
- 2,194 t, 90% of total
- Fuel, laden
- 703 t
- CO₂ per nm, laden
- 242.7 kg
The rest of the 2023 total was emitted on ballast legs or at berth.
Observed movementsAIS · Norwegian waters
- First seen
- 13 Jul 2026
- Last seen
- 16 Jul 2026
- Days observed
- 4
- Positions
- 135
- Median speed
- 8.8 kn
Its recorded positions span 60.7°N to 60.9°N and 4.4°E to 5.1°E.
72 hourly points from 135 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.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2019–2023, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 5 MRV reporting years, an efficiency ranking, 4 of 5 vessel particulars and AIS movements in Norwegian waters. Not found in the sources for this vessel: 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.