MTS 121 (IMO 1137654)
MTS 121 is a tug built in 2025 and flying the flag of Indonesia; it is in its first year of service. The vessel has a deadweight of 180 tonnes, a gross tonnage of 212, and a length overall of 29 metres. No classification society is on file for the vessel. The vessel has been observed most often in South East Asia, the Makassar Strait, and the Singapore Strait (latest area report: August 2026). It has previously sailed under one other name and one other flag. No port state control (PSC) inspection records are on file for this vessel.
- Type: Tug
- Flag: Indonesia
- Year built: 2025
- MMSI: 525901819
- Call sign: YDD4066
- Gross tonnage: 212
- Deadweight: 180 t
- Length overall: 29 m
- Beam: 8 m
- Registered owner · Ship manager: MITRA TUJUH SAMUDRA (Indonesia)
- Last AIS position: 0°25.8′S · 117°0.1′E · Speed 4.1 kn · under way · received 8 October 2026 at 19:12 UTC
- Destination: STS operation
- Arrival alert: rynda.io messages you by email or in Telegram when MTS 121 arrives in port. Free for up to 3 vessels.
Frequently asked questions
What type of vessel is MTS 121?
MTS 121 is a tug built in 2025. It is in its first year of service.
What is the deadweight of MTS 121?
MTS 121 has a deadweight of 180 tonnes. Its gross tonnage is 212. It measures 29 metres overall.
What flag does MTS 121 fly?
MTS 121 flies the flag of Indonesia. Earlier it sailed under one other flag.
Who classes MTS 121?
No classification society is on file for the vessel.
How many port state control inspections has MTS 121 had?
No port state control (PSC) inspection records are on file for this vessel.
Live AIS via Rynda — combined with classification, PSC, sanctions and ownership data.