Chemical tanker · Liberia flag
CHEM HOUSTON: CO₂ emissions 2018–2025
IMO 9705720 MMSI 636016360EU ETS8 reporting years
- CO₂ reported 2025
- 5,622 t
- Fuel burned
- 1,787 t
- Distance
- 24,367 nm
- Time at sea
- 1,955 h
- Emitted at berth
- 6% of total
- Share of year under way
- 22%
CHEM HOUSTON against its type
It is one of 402 chemical tankers here under the Liberia flag, 17.2% of the 2,344 on the register. The returns for 2018–2025 all give Monrovia as port of registry.
Its 5,622 t of CO₂ for 2025 is close to the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 230.7 kg CO₂, close to the type median of 250.2 kg. It logged 1,955 hours at sea against a median of 2,106 hours for its type that year. 5.8% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2019 (12,034 t) and the lowest 2024 (4,017 t). Its efficiency percentile within the type went from 72 in 2018 to 70 in 2025 (lower is more efficient). Of the 7 comparable vessels listed below with a 2025 return, 1 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 | 5,622 | 1,787 | 24,367 | 1,955 | 328 | 230.7 | 20.6 | 70 |
| 2024 | 4,017 | 1,277 | 18,167 | 1,400 | 468 | 221.1 | 21.5 | 67 |
| 2023 | 4,824 | 1,534 | 21,811 | 1,835 | 274 | 221.2 | 15.0 | 48 |
| 2022 | 6,482 | 2,066 | 34,386 | 2,645 | 329 | 188.5 | 13.0 | 36 |
| 2021 | 6,062 | 1,908 | 31,908 | 2,717 | 381 | 190.0 | 13.6 | 36 |
| 2020 | 9,532 | 2,992 | 43,519 | 3,746 | 831 | 219.0 | 15.4 | 48 |
| 2019 | 12,034 | 3,817 | 48,628 | 4,990 | 1,504 | 247.5 | 18.5 | 59 |
| 2018 | 8,395 | 2,668 | 30,028 | 2,641 | 1,274 | 279.6 | 22.5 | 72 |
Vessel particulars
- IMO number
- 9705720
- MMSI
- 636016360
- Ship type
- Chemical tanker
- Length overall
- 145.0 m
- Beam
- 25.0 m
- Flag state
- Liberia per EU MRV 2025
- Port of registry
- Monrovia MRV 2025
- Home port
- Monrovia
- Technical efficiency (design)
- EEDI (7.43 gCO₂/t·nm)
- Verifier
- NORMEC VERIFAVIA SAS, France
- Accreditation
- 3-2127
- Compliance document issued
- 2026-03-11
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 945 of 1,348 qualifying chemical tankers by EEOI, at the 70th percentile. The dashed line is the type median, 14.4; this vessel reported 20.6.
EEOI divides emissions by transport work, which for this vessel and year was 272,538,536 tonne-miles over 24,367 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 33.0% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 40.0% while distance sailed rose 34.1%and CO₂ per nautical mile rose 4.4%.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
- 5,710 t
- Methane (CH₄)
- 0.09 t
- Nitrous oxide (N₂O)
- 0.32 t
- Under EU ETS
- 4,127 t, 73% of total
Observed movementsAIS · Norwegian waters
- First seen
- 23 Mar 2026
- Last seen
- 25 Mar 2026
- Days observed
- 3
- Positions
- 87
- Median speed
- 8.9 kn
Its recorded positions span 58.0°N to 58.2°N and 8.0°E to 8.1°E.
55 hourly points from 87 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.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | VERIFAVIA (UK) LTD | United Kingdom |
| 2020 | NORMEC VERIFAVIA SAS | France |
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.
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 8 MRV reporting years, an efficiency ranking, 2 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.