Chemical tanker · Portugal flag · built 2011
HARBOUR EXPRESS: CO₂ emissions 2018–2025
IMO 9418822 EU ETS8 reporting years
- CO₂ reported 2025
- 12,891 t
- Fuel burned
- 4,120 t
- Distance
- 42,911 nm
- Time at sea
- 4,319 h
- Emitted at berth
- 12% of total
- Share of year under way
- 49%
- Gross tonnage
- 12,745
HARBOUR EXPRESS 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 12,745 gross tonnage it is smaller than 66% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 71 chemical tankers here under the Portugal flag, 3.0% of the 2,344 on the register. Its MRV returns name it MEHMET A for 2018–2021 and HARBOUR EXPRESS for 2022–2025. The reported port of registry changed: Valletta (2018–2021), then Madeira (2022–2025).
Its 12,891 t of CO₂ for 2025 is 2.3 times the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 300.4 kg CO₂, 20% above the type median of 250.2 kg. It logged 4,319 hours at sea against a median of 2,106 hours for its type that year. 12.5% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2025 (12,891 t) and the lowest 2020 (1,715 t). Its efficiency percentile within the type went from 58 in 2018 to 81 in 2025 (lower is more efficient). Of the 8 comparable vessels listed below with a 2025 return, 7 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 | 12,891 | 4,120 | 42,911 | 4,319 | 1,611 | 300.4 | 27.0 | 81 |
| 2024 | 9,046 | 2,869 | 34,163 | 3,377 | 694 | 264.8 | 20.8 | 66 |
| 2023 | 10,381 | 3,276 | 39,746 | 3,994 | 760 | 261.2 | 28.1 | 79 |
| 2022 | 11,404 | 3,620 | 43,786 | 4,300 | 1,032 | 260.4 | 26.9 | 80 |
| 2021 | 6,809 | 2,171 | 27,366 | 2,650 | 293 | 248.8 | 26.8 | 79 |
| 2020 | 1,715 | 535 | — | 655 | 72 | 264.6 | 26.7 | not ranked |
| 2019 | 6,016 | 1,918 | 23,010 | 3,323 | 340 | 261.5 | 25.8 | 78 |
| 2018 | 5,921 | 1,896 | 25,081 | 3,156 | 192 | 236.1 | 18.1 | 58 |
Vessel particulars
- IMO number
- 9418822
- Previously reported as
- MEHMET A
- Ship type
- Chemical tanker
- Gross tonnage
- 12,745
- Length overall
- 161.7 m
- Beam
- 22.4 m
- Year built
- 2011
- Flag state
- Portugal per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Malta. The flag shown is from the newest official source, the EU MRV return for 2025. - Port of registry
- Madeira MRV 2025
- Ice class
- IA
- Technical efficiency (design)
- EEXI (7.66 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-24
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,088 of 1,348 qualifying chemical tankers by EEOI, at the 81st percentile. The dashed line is the type median, 14.4; this vessel reported 27.0.
EEOI divides emissions by transport work, which for this vessel and year was 476,930,818 tonne-miles over 42,911 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 117.7% higher than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 42.5% while distance sailed rose 25.6%and CO₂ per nautical mile rose 13.5%.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
- 13,094 t
- Methane (CH₄)
- 0.21 t
- Nitrous oxide (N₂O)
- 0.74 t
- Under EU ETS
- 10,727 t, 83% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Bureau Veritas Certification France | France |
| 2022 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2023 | 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 8 MRV reporting years, an efficiency ranking, 4 of 5 vessel particulars and a name history. Not found in the sources for this vessel: 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.