Chemical tanker · Liberia flag · built 2016
HOUYOSHI PARK: CO₂ emissions 2018–2025
IMO 9725847 EU ETS8 reporting years
- CO₂ reported 2025
- 4,257 t
- Fuel burned
- 1,362 t
- Distance
- 19,955 nm
- Time at sea
- 1,794 h
- Emitted at berth
- 2% of total
- Share of year under way
- 20%
- Gross tonnage
- 12,145
HOUYOSHI PARK against its type
Built in 2016, it is 6 years newer than the median chemical tanker on this register, which was built in 2010 (1,951 vessels with a known build year). At 12,145 gross tonnage it is smaller than 67% 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 returns for 2018–2025 all give Monrovia as port of registry.
Its 4,257 t of CO₂ for 2025 is 23% below the median of 5,531 t among the 1,484 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 213.3 kg CO₂, 15% below the type median of 250.2 kg. It logged 1,794 hours at sea against a median of 2,106 hours for its type that year. 2.0% of its 2025 emissions were at berth; the median for chemical tankers was 6.6%. Across 8 years with reported emissions, the highest was 2023 (8,768 t) and the lowest 2018 (4,008 t). Its efficiency percentile within the type went from 0 in 2018 to 50 in 2025 (lower is more efficient). Of the 5 comparable vessels listed below with a 2025 return, 4 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 | 4,257 | 1,362 | 19,955 | 1,794 | 84 | 213.3 | 14.4 | 50 |
| 2024 | 6,381 | 2,044 | 29,186 | 2,405 | 312 | 218.6 | 13.4 | 39 |
| 2023 | 8,768 | 2,807 | — | 3,111 | 562 | 220.8 | — | — |
| 2022 | 4,978 | 1,587 | 23,825 | 2,020 | 404 | 208.9 | 15.0 | 46 |
| 2021 | 4,286 | 1,369 | 19,653 | 2,064 | 280 | 218.1 | 17.1 | 55 |
| 2020 | 8,338 | 2,649 | — | 3,306 | 496 | 214.1 | 1.0 | not ranked |
| 2019 | 7,903 | 2,526 | 33,499 | 2,733 | 1,223 | 235.9 | 2.0 | 0 |
| 2018 | 4,008 | 1,283 | 18,750 | 2,573 | 636 | 213.8 | 3.2 | 0 |
Vessel particulars
- IMO number
- 9725847
- Ship type
- Chemical tanker
- Gross tonnage
- 12,145
- Length overall
- 145.0 m
- Beam
- 24.2 m
- Year built
- 2016
- Flag state
- Liberia per EU MRV 2025
- Port of registry
- Monrovia MRV 2025
- Home port
- Monrovia
- Technical efficiency (design)
- EEDI (7.32 gCO₂/t·nm)
- Verifier
- AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
- Accreditation
- 1083-2
- Compliance document issued
- 2026-03-25
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 672 of 1,348 qualifying chemical tankers by EEOI, at the 50th percentile. The dashed line is the type median, 14.4; this vessel reported 14.4.
EEOI divides emissions by transport work, which for this vessel and year was 295,815,844 tonne-miles over 19,955 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 6.2% higher than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 33.3% while distance sailed fell 31.6%and CO₂ per nautical mile fell 2.4%.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
- 4,324 t
- Methane (CH₄)
- 0.07 t
- Nitrous oxide (N₂O)
- 0.25 t
- Under EU ETS
- 2,262 t, 53% of total
Laden voyages2025
- CO₂ on laden voyages
- 3,295 t, 77% of total
- Fuel, laden
- 1,055 t
- CO₂ per nm, laden
- 200.4 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2020 | HELLENIC LLOYD'S S.A. | Greece |
| 2021 | DNV | Germany |
| 2023 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
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 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.