RIO GRANDE EXPRESS: CO₂ emissions 2018–2025

RIO GRANDE EXPRESS against its type

Built in 2006, it is 2 years older than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 39,941 gross tonnage it is smaller than 56% of the other 3,000 container ships with a recorded tonnage. It is one of 362 container ships here under the Singapore flag, 10.4% of the 3,495 on the register. The reported port of registry changed: Hong Kong (2018), then Houston, TX (2020), then Hong Kong (2021–2024), then Singapore (2025).

Its 8,753 t of CO₂ for 2025 is 46% below the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 568.4 kg CO₂, close to the type median of 545.6 kg. It logged 972 hours at sea against a median of 3,155 hours for its type that year. 1.5% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 7 years with reported emissions, the highest was 2020 (30,066 t) and the lowest 2023 (1,073 t). Its efficiency percentile within the type went from 35 in 2018 to 59 in 2025 (lower is more efficient). The one comparable vessel listed below with a 2025 return reported a lower CO₂ per nautical mile.

Emissions by year2018–2025

Vessel particulars

IMO number

9301823

Ship type

Container ship

Gross tonnage

39,941

Length overall

260.1 m

Beam

32.4 m

Year built

2006

Flag state

Singapore per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list United States. The flag shown is from the newest official source, the EU MRV return for 2025.

Port of registry

Singapore MRV 2025

Technical efficiency (design)

EEXI (13.79 gCO₂/t·nm)

Verifier

DNV, Germany

Accreditation

VS-16026-01

Compliance document issued

2026-02-10

Compliance document expires

2027-06-30

Efficiency against its own type2025

Position 1,088 of 1,838 qualifying container ships by EEOI, at the 59th percentile. The dashed line is the type median, 14.2; this vessel reported 16.8.

EEOI divides emissions by transport work, which for this vessel and year was 520,073,678 tonne-miles over 15,400 nautical miles.

Reported CO₂ by year

Reported CO₂ in 2025 was 50.4% lower than in 2018, for EU/EEA voyages only. No return is recorded for 2019, so the series has gaps.

From 2024 to 2025, emissions fell 66.1% while distance sailed fell 72.2%and CO₂ per nautical mile rose 21.9%.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

8,890 t

Methane (CH₄)

0.14 t

Nitrous oxide (N₂O)

0.50 t

Under EU ETS

4,583 t, 52% of total

Verifier history

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 7 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

• SEASPAN LAHORE 2006 · 39,941 GT · 13,437 t · 524.8 kg/nm
• SEASPAN SANTOS 2006 · 39,941 GT · 10,313 t · 446.7 kg/nm
• SEASPAN SAIGON 2006 · 39,941 GT · 35,887 t · 452.2 kg/nm
• SEASPAN RIO DE JANEIRO 2007 · 39,941 GT · 294 t · 673.0 kg/nm
• SEASPAN JAKARTA 2006 · 39,941 GT · 23,970 t · 479.8 kg/nm
• RENA P 2007 · 39,941 GT · 13,385 t · 471.3 kg/nm
• SEASPAN NEW DELHI 2005 · 39,941 GT · 25,676 t · 548.4 kg/nm
• SEATTLE C 2007 · 40,030 GT · 33,879 t · 474.1 kg/nm