AMETHYST ACE: CO₂ emissions 2018–2025

AMETHYST ACE against its type

Built in 2008, it is the same age as the median vehicle carrier on this register (build year 2008, 595 vessels with a known build year). At 60,143 gross tonnage it is larger than 64% of the other 571 vehicle carriers with a recorded tonnage. It is one of 177 vehicle carriers here under the Panama flag, 24.8% of the 713 on the register. The reported port of registry changed: GEORGE TOWN (2018–2020), then PANAMA (2023–2025).

Its 13,491 t of CO₂ for 2025 is 1.9 times the median of 7,074 t among the 514 vehicle carriers on this register that reported for 2025. Per nautical mile it emitted 289.6 kg CO₂, close to the type median of 309.1 kg. It logged 3,146 hours at sea against a median of 1,639 hours for its type that year. 0.9% of its 2025 emissions were at berth; the median for vehicle carriers was 3.1%. Across 6 years with reported emissions, the highest was 2020 (16,072 t) and the lowest 2018 (4,365 t). Its efficiency percentile within the type went from 52 in 2018 to 89 in 2025 (lower is more efficient). Of the 8 comparable vessels listed below with a 2025 return, 0 reported a lower CO₂ per nautical mile than this vessel.

Emissions by year2018–2025

Vessel particulars

IMO number

9397999

Ship type

Vehicle carrier

Gross tonnage

60,143

Length overall

200.0 m

Year built

2008

Flag state

Panama per EU MRV 2025

Port of registry

Panama MRV 2025

Technical efficiency (design)

EEXI (14.8 gCO₂/t·nm)

Verifier

Nippon Kaiji Kyokai, Japan

Accreditation

VS-21325-01

Compliance document issued

2026-03-09

Compliance document expires

2027-06-30

Efficiency against its own type2025

Position 378 of 423 qualifying vehicle carriers by EEOI, at the 89th percentile. The dashed line is the type median, 51.7; this vessel reported 106.3.

EEOI divides emissions by transport work, which for this vessel and year was 126,889,673 tonne-miles over 46,585 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 209.1% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2021, 2022, so the series has gaps.

From 2024 to 2025, emissions rose 27.1% while distance sailed rose 4.0%and CO₂ per nautical mile rose 22.2%.That points mainly to how efficiently it sailed, rather than the other.

Where the 2025 emissions occurred

Methane, nitrous oxide and EU ETS2025

Total CO₂ equivalent

13,703 t

Methane (CH₄)

0.22 t

Nitrous oxide (N₂O)

0.78 t

Under EU ETS

6,818 t, 51% of total

Laden voyages2025

CO₂ on laden voyages

6,333 t, 47% of total

Fuel, laden

2,020 t

The rest of the 2025 total was emitted on ballast legs or at berth.

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 6 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.

Comparable vesselsnearest by tonnage, same type

• AQUAMARINE ACE 2007 · 60,143 GT · 9,876 t · 354.2 kg/nm
• RUBY ACE 2010 · 60,148 GT · 10,436 t · 299.3 kg/nm
• CRYSTAL ACE 2012 · 60,131 GT · 4,643 t · 299.9 kg/nm
• EMERALD ACE 2012 · 60,154 GT · 5,342 t · 302.3 kg/nm
• ONYX ACE 2012 · 60,131 GT · 10,942 t · 306.5 kg/nm
• PARADISE ACE 2004 · 60,175 GT · 711 t · 316.3 kg/nm
• OPAL ACE 2011 · 60,131 GT · 5,516 t · 292.9 kg/nm
• FREEDOM ACE 2005 · 60,175 GT · 795 t · 320.4 kg/nm