Auxiliaries and Other Ships
HTMS Similan AOR 871 Type 908 Chinese built. (1996) LOA 564′ / 172 m TDISP 17,000 tons (1 active with Thailand)

Survey Ships
HTMS Chanthara 811 (1961) LOA 229′ / 69.8 m TDISP 1,000 tons May also be called HTMS Chan, built by Lurssen in Germany.
Unidentified Auxiliaries – these may both be small tankers, with LOA 225-230′ / 68.6-70.1 m