Chemical tanker · Liberia flag · built 2009
DIAMOND: CO₂ emissions 2018–2023
IMO 9385142 MMSI 273276930Sanctions listing4 reporting years
- CO₂ reported 2023
- 1,048 t
- Fuel burned
- 327 t
- Time at sea
- 242 h
- Emitted at berth
- 29% of total
- Share of year under way
- 3%
- Gross tonnage
- 29,967
DIAMOND 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 29,967 gross tonnage it is larger than 87% 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 reported port of registry changed: Monrovia (2018–2022), then Libreville (2023).
Its 1,048 t of CO₂ for 2023 is 81% 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 370.4 kg CO₂, 44% above the type median of 258.0 kg. It logged 242 hours at sea against a median of 1,919 hours for its type that year. 28.8% of its 2023 emissions were at berth; the median for chemical tankers was 8.2%. Across 4 years with reported emissions, the highest was 2018 (15,814 t) and the lowest 2023 (1,048 t). Its efficiency percentile within the type went from 46 in 2018 to 28 in 2022 (lower is more efficient). The one comparable vessel listed below with a 2023 return reported a lower CO₂ per nautical mile.
Emissions by year2018–2023
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2023 | 1,048 | 327 | — | 242 | 302 | 370.4 | 22.3 | not ranked |
| 2022 | 4,782 | 1,508 | 16,385 | 1,544 | 490 | 291.9 | 11.8 | 28 |
| 2019 | 1,379 | 437 | — | 253 | 249 | 467.0 | 26.9 | not ranked |
| 2018 | 15,814 | 5,034 | 52,312 | 4,652 | 1,704 | 302.3 | 15.8 | 46 |
Vessel particulars
- IMO number
- 9385142
- Previously reported as
- SCF DON
- MMSI
- 273276930
- Call sign
- UARD7
- Ship type
- Chemical tanker
- Gross tonnage
- 29,967
- Length overall
- 183.0 m
- Beam
- 32.0 m
- Year built
- 2009
- Flag state
- Liberia Wikidata/AIS, undated
- Port of registry
- Libreville MRV 2023
- Home port
- Libreville
- Ice class
- IA
- Technical efficiency (design)
- EIV (6.21 gCO₂/t·nm)
- Efficiency ranking
- Not ranked: transport work below the floor (2023)
- Verifier
- Indian Register of Shipping, India
- Accreditation
- V 107
- Compliance document issued
- 2024-05-09
- Compliance document expires
- 2025-06-30
Reported CO₂ by year
Reported CO₂ in 2023 was 93.4% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2020, 2021, so the series has gaps.
From 2022 to 2023, emissions fell 78.1% and CO₂ per nautical mile rose 26.9%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2023 emissions occurred
Observed movementsAIS · Norwegian waters
- First seen
- 10 Sep 2025
- Last seen
- 13 Nov 2025
- Days observed
- 5
- Positions
- 298
- Median speed
- 12.3 kn
Its recorded positions span 58.0°N to 71.0°N and 4.5°E to 19.2°E.
26 hourly points from 298 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Positions recorded per month
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.
Sanctions listings
| List | Programme | Listed | Delisted |
|---|---|---|---|
| ofac_sdn | UKRAINE-EO13662] [RUSSIA-EO14024 | — | Still listed |
Reproduced from the published source register as of the build date, and not legal advice. A listing attaches to the vessel with this IMO number; ownership and management may have changed since. Check the issuing authority before relying on it.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2022 | Indian Register of Shipping | India |
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 2018–2023, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
- Movements: Norwegian Coastal Administration open AIS extract.
- Sanctions: ofac_sdn.
This page draws on 4 MRV reporting years, 4 of 5 vessel particulars, AIS movements in Norwegian waters, a name history, a licensed photograph and a sanctions listing. Not found in the sources for this vessel: an efficiency ranking 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.