Chemical tanker · Marshall Islands flag · built 2011
UACC RIYADH: CO₂ emissions 2020–2024
IMO 9458834 EU ETS4 reporting years
- CO₂ reported 2024
- 10,478 t
- Fuel burned
- 3,336 t
- Time at sea
- 2,027 h
- Share of year under way
- 23%
- Gross tonnage
- 29,124
UACC RIYADH against its type
Built in 2011, it is 1 year newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 29,124 gross tonnage it is larger than 67% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 474 chemical tankers here under the Marshall Islands flag, 20.2% of the 2,344 on the register. The returns for 2020–2024 all give MAJURO as port of registry.
Its 10,478 t of CO₂ for 2024 is 1.8 times the median of 5,830 t among the 1,451 chemical tankers on this register that reported for 2024. Per nautical mile it emitted 394.9 kg CO₂, 1.6 times the type median of 253.5 kg. It logged 2,027 hours at sea against a median of 2,177 hours for its type that year. 0.0% of its 2024 emissions were at berth; the median for chemical tankers was 5.9%. Across 4 years with reported emissions, the highest was 2024 (10,478 t) and the lowest 2020 (6,509 t). Its efficiency percentile within the type went from 30 in 2020 to 29 in 2023 (lower is more efficient). Of the 3 comparable vessels listed below with a 2024 return, 2 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2020–2024
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2024 | 10,478 | 3,336 | — | 2,027 | 0 | 394.9 | — | — |
| 2023 | 9,241 | 2,913 | 23,505 | 1,954 | 1,170 | 393.2 | 11.9 | 29 |
| 2021 | 6,791 | 2,170 | 20,996 | 1,720 | 488 | 323.4 | 9.9 | 13 |
| 2020 | 6,509 | 2,049 | 19,511 | 1,712 | 294 | 333.6 | 12.6 | 30 |
Vessel particulars
- IMO number
- 9458834
- Ship type
- Chemical tanker
- Gross tonnage
- 29,124
- Length overall
- 183.0 m
- Beam
- 32.0 m
- Year built
- 2011
- Flag state
- Marshall Islands per EU MRV 2024
- Port of registry
- MAJURO MRV 2024
- Technical efficiency (design)
- EIV (6.87 gCO₂/t·nm)
- Verifier
- Nippon Kaiji Kyokai, Japan
- Accreditation
- VS-21325-01
- Compliance document issued
- 2025-03-29
- Compliance document expires
- 2026-06-30
Efficiency against its own type2023
Position 352 of 1,230 qualifying chemical tankers by EEOI, at the 29th percentile. The dashed line is the type median, 15.6; this vessel reported 11.9.
EEOI divides emissions by transport work, which for this vessel and year was 774,614,417 tonne-miles over 23,505 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2024 was 61.0% higher than in 2020, for EU/EEA voyages only. No return is recorded for 2022, so the series has gaps.
From 2023 to 2024, emissions rose 13.4% and CO₂ per nautical mile rose 0.4%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2024 emissions occurred
Methane, nitrous oxide and EU ETS2024
- Total CO₂ equivalent
- 10,642 t
- Methane (CH₄)
- 0.17 t
- Nitrous oxide (N₂O)
- 0.60 t
- Under EU ETS
- 5,893 t, 56% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2020 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2023 | Nippon Kaiji Kyokai | Japan |
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 2020–2024, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 4 MRV reporting years, an efficiency ranking and 4 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.