Chemical tanker · Hong Kong flag · built 2016
SILVER JOAN: CO₂ emissions 2019–2025
IMO 9718894 4 reporting years
- CO₂ reported 2021
- 7,605 t
- Fuel burned
- 2,420 t
- Distance
- 34,575 nm
- Time at sea
- 3,231 h
- Emitted at berth
- 5% of total
- Share of year under way
- 37%
- Gross tonnage
- 29,375
SILVER JOAN 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 29,375 gross tonnage it is larger than 72% of the other 1,899 chemical tankers with a recorded tonnage. It is one of 65 chemical tankers here under the Hong Kong flag, 2.8% of the 2,344 on the register. The returns for 2019–2025 all give Hong Kong as port of registry.
Its 7,605 t of CO₂ for 2021 is 25% above the median of 6,071 t among the 1,418 chemical tankers on this register that reported for 2021. Per nautical mile it emitted 219.9 kg CO₂, 16% below the type median of 262.7 kg. It logged 3,231 hours at sea against a median of 2,112 hours for its type that year. 5.2% of its 2021 emissions were at berth; the median for chemical tankers was 8.4%. Across 3 years with reported emissions, the highest was 2020 (10,353 t) and the lowest 2019 (2,723 t). Its efficiency percentile within the type went from 4 in 2019 to 15 in 2021 (lower is more efficient). Of the 2 comparable vessels listed below with a 2021 return, 0 reported a lower CO₂ per nautical mile than this vessel.
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 year2019–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | No EU/EEA voyages reported | |||||||
| 2021 | 7,605 | 2,420 | 34,575 | 3,231 | 399 | 219.9 | 10.1 | 15 |
| 2020 | 10,353 | 3,277 | 41,339 | 3,470 | 2,847 | 250.4 | 6.8 | 2 |
| 2019 | 2,723 | 862 | 9,254 | 727 | 594 | 294.2 | 7.7 | 4 |
Vessel particulars
- IMO number
- 9718894
- Ship type
- Chemical tanker
- Gross tonnage
- 29,375
- Length overall
- 183.0 m
- Beam
- 32.2 m
- Year built
- 2016
- Flag state
- Hong Kong per EU MRV 2025
- Port of registry
- Hong Kong MRV 2021
- Home port
- Hong Kong
- Technical efficiency (design)
- EEXI (4.3 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
- 2022-06-29
- Compliance document expires
- 2023-06-30
Efficiency against its own type2021
Position 185 of 1,261 qualifying chemical tankers by EEOI, at the 15th percentile. The dashed line is the type median, 16.1; this vessel reported 10.1.
EEOI divides emissions by transport work, which for this vessel and year was 749,977,318 tonne-miles over 34,575 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2021 was 179.3% higher than in 2019, for EU/EEA voyages only. No return is recorded for 2022, 2023, 2024, so the series has gaps.
From 2020 to 2021, emissions fell 26.5% while distance sailed fell 16.4%and CO₂ per nautical mile fell 12.2%.
Where the 2021 emissions occurred
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2019 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2025 | HELLENIC LLOYD'S S.A. | 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 2019–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 4 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.