There are no official English or Thai subtitles! Any Ginga DVD that claims to have these subtitles is a bootleg, and often have terrible subs. You can view the official non-Japanese releases here.
The only official Thai manga is Byakuren no Fang, everything else is bootleg. Korea also has a lot of bootleg mangas, however there are official publications. Be sure to pay attention to minor differences in covers, and of the publishing company. You can view the official non-Japanese / non-Nordic releases here.
Chinese bootleg toy made by Frontwinner. Please look at the official plushies for comparison.