Thailand has a moderate seafarer population concentrated in coastal trades, regional container service, and offshore (Gulf of Thailand). Thailand ratified MLC 2006 in 2016, providing full MLC protection for Thai-flag ships and Thai seafarers. The Marine Department under the Ministry of Transport handles all STCW certification and ship-registry functions; the Department of Employment under the Ministry of Labour licenses manning agents.
Officer-track candidates complete a 4-year Bachelor of Science in Marine Transportation or Marine Engineering at a Marine Department-accredited institution, including supervised cadetship. Graduates sit the Marine Department licensing examination for OOW (STCW II/1) or EOOW (III/1). Higher ranks require additional sea time and exams.
Thai seafarers serve with: Thoresen Shipping, Precious Shipping, Regional Container Lines (RCL), Unique Mining Services (offshore supply), and on foreign-flag ships through manning agents representing principals such as MOL, NYK, MSC, MOL Cruise (regional cruise crewing), and offshore O&G majors. Verify the manning agent's DOE licence; the DOE publishes the licensee list.
Most Thai seafarers depart Suvarnabhumi (BKK) or Don Mueang (DMK) airports in Bangkok. Carry the Thai seaman's book, original SEA, manning-agent letter of guarantee, and any required transit/crew visa for the joining port (notably the C-1/D for US, Schengen C visa for some EU ports).
Contact the ITF Inspectorate at the next port (or any ITF inspector — they handle complaints across flags), ISWAN SeafarerHelp 24/7, and the DOE's overseas-worker hotline for manning-agent disputes. The Marine Department's seafarer welfare unit handles flag-state complaints. For specific situations see abandonment, unpaid wages, and contract disputes.
Sources: Marine Department Thailand, Department of Employment, Thai Maritime Code, ILO MLC 2006, Tokyo MoU, IMO STCW Convention.