Chemical tanker · Denmark flag · built 2011
CATHY THERESA: CO₂ emissions 2018–2025
IMO 9478315 EU ETS8 reporting years
- CO₂ reported 2025
- 5,911 t
- Fuel burned
- 1,860 t
- Distance
- 36,561 nm
- Time at sea
- 3,864 h
- Emitted at berth
- 8% of total
- Share of year under way
- 44%
- Gross tonnage
- 5,706
CATHY THERESA 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 5,706 gross tonnage it is smaller than 95% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 93 chemical tankers here under the Denmark flag, 4.0% of the 2,344 on the register. The returns for 2018–2025 all give Herning as port of registry.
Its 5,911 t of CO₂ for 2025 is close to the median of 5,533 t among the 1,483 chemical tankers on this register that reported for 2025. Per nautical mile it emitted 161.7 kg CO₂, 35% below the type median of 250.2 kg. It logged 3,864 hours at sea against a median of 2,109 hours for its type that year. 7.7% 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 (7,047 t) and the lowest 2021 (5,194 t). Its efficiency percentile within the type went from 98 in 2018 to 99 in 2025 (lower is more efficient). Of the 6 comparable vessels listed below with a 2025 return, 5 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 | 5,911 | 1,860 | 36,561 | 3,864 | 455 | 161.7 | 60.6 | 99 |
| 2024 | 6,334 | 2,001 | 41,740 | 4,594 | 468 | 151.8 | 34.1 | 85 |
| 2023 | 5,684 | 1,799 | 32,613 | 3,492 | 582 | 174.3 | 58.6 | 98 |
| 2022 | 6,743 | 2,120 | 43,509 | 4,353 | 459 | 155.0 | 45.3 | 95 |
| 2021 | 5,194 | 1,640 | 35,133 | 4,660 | 127 | 147.8 | 33.9 | 86 |
| 2020 | 6,680 | 2,124 | 46,806 | 4,698 | 333 | 142.7 | 39.9 | 91 |
| 2019 | 7,047 | 2,241 | 48,909 | 6,787 | 320 | 144.1 | 34.2 | 87 |
| 2018 | 6,065 | 1,918 | 34,483 | 4,829 | 1,412 | 175.9 | 56.0 | 98 |
Vessel particulars
- IMO number
- 9478315
- Ship type
- Chemical tanker
- Gross tonnage
- 5,706
- Length overall
- 101.4 m
- Year built
- 2011
- Flag state
- Denmark per EU MRV 2025
- Port of registry
- Herning MRV 2025
- Technical efficiency (design)
- EEXI (14.48 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-17
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,332 of 1,348 qualifying chemical tankers by EEOI, at the 99th percentile. The dashed line is the type median, 14.4; this vessel reported 60.6.
EEOI divides emissions by transport work, which for this vessel and year was 97,591,547 tonne-miles over 36,561 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 2.5% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions fell 6.7% while distance sailed fell 12.4%and CO₂ per nautical mile rose 6.5%.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
- 6,002 t
- Methane (CH₄)
- 0.09 t
- Nitrous oxide (N₂O)
- 0.33 t
- Under EU ETS
- 4,599 t, 78% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2019 | 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 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.