Container ship · Liberia flag · built 2009
DOUALA EXPRESS: CO₂ emissions 2018–2025
IMO 9403463 6 reporting years
- CO₂ reported 2022
- 4,988 t
- Fuel burned
- 1,579 t
- Time at sea
- 1,076 h
- Emitted at berth
- 6% of total
- Share of year under way
- 12%
- Gross tonnage
- 9,957
DOUALA EXPRESS against its type
Built in 2009, it is 1 year newer than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 9,957 gross tonnage it is smaller than 92% of the other 3,000 container ships with a recorded tonnage. It is one of 976 container ships here under the Liberia flag, 27.9% of the 3,495 on the register. Its MRV returns name it VEGA MERCURY for 2018, SAG GOOD TIMING for 2019–2021 and DOUALA EXPRESS for 2022–2025. The reported port of registry changed: Monrovia (2018–2020), then Majuro (2021), then Monrovia (2022–2025).
Its 4,988 t of CO₂ for 2022 is 68% below the median of 15,388 t among the 1,858 container ships on this register that reported for 2022. Per nautical mile it emitted 366.3 kg CO₂, 32% below the type median of 539.7 kg. It logged 1,076 hours at sea against a median of 2,699 hours for its type that year. 6.2% of its 2022 emissions were at berth; the median for container ships was 4.2%. Across 5 years with reported emissions, the highest was 2021 (12,406 t) and the lowest 2018 (2,098 t). The one comparable vessel listed below with a 2022 return reported a lower CO₂ per nautical mile.
No EU/EEA voyages were reported for 2025: zero CO₂ and zero time at sea, left out of the trend and of any ranking.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | No EU/EEA voyages reported | |||||||
| 2022 | 4,988 | 1,579 | — | 1,076 | 309 | 366.3 | 54.1 | not ranked |
| 2021 | 12,406 | 3,943 | — | 3,773 | 945 | 330.9 | — | — |
| 2020 | 7,732 | 2,467 | — | 2,697 | 461 | 284.2 | 56.3 | not ranked |
| 2019 | 7,293 | 2,334 | — | 4,053 | 425 | 277.7 | 57.8 | not ranked |
| 2018 | 2,098 | 670 | — | 1,970 | 97 | 478.0 | 87.8 | not ranked |
Vessel particulars
- IMO number
- 9403463
- Previously reported as
- VEGA MERCURY, SAG GOOD TIMING
- Ship type
- Container ship
- Gross tonnage
- 9,957
- Length overall
- 147.8 m
- Beam
- 23.3 m
- Year built
- 2009
- Flag state
- Liberia per EU MRV 2025
- Port of registry
- Monrovia MRV 2022
- Home port
- Monrovia
- Technical efficiency (design)
- EEXI (21.88 gCO₂/t·nm)
- Efficiency ranking
- Not ranked: transport work below the floor (2022)
- Verifier
- EnvService GmbH, Germany
- Accreditation
- D-VS-20809-01-00
- Compliance document issued
- 2023-04-28
- Compliance document expires
- 2024-06-30
Reported CO₂ by year
Reported CO₂ in 2022 was 137.8% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2023, 2024, so the series has gaps.
From 2021 to 2022, emissions fell 59.8% and CO₂ per nautical mile rose 10.7%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2022 emissions occurred
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | DNV | Germany |
| 2022 | EnvService GmbH | Germany |
| 2025 | 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).
This page draws on 6 MRV reporting years, 4 of 5 vessel particulars and a name history. Not found in the sources for this vessel: an efficiency ranking, 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.