THY Level 6
Hmmm.
apparently ICAO DOC9835 does not either translate well into Turkic or Hangul, or it is just disregarded as being another bit of external interference in the "ways of doing business" by pesky Yabancies/Weikuk-in's that exist in both regions (and many others as well...).
Would think that a level 4 or greater qualification achieved in THY or in Korea has absolutely no moral merit. I am reminded of a Chinese individual who was educated in english as an instructional language and was both fluent and erudite in that language, but was "given" a TELP LVL 4 while other F5/F16 pukes who couldn't pronounce their own name were given 4's and 5's (and the script/answers...).