i don't think he can even qualify for working permit yet. He'll probably be years away.
I think working permit may now be tied up with ESC status which was introduced recently. - an overview. Introducing ESC: the new GBE guidance opens up recruitment post Brexit - Analytics FC
South Korea is in the FIFA top 50 leagues in world , and as the player has already played 24 times for his club this year (plus at u17 level for South Korea), I think he qualifies. If he gets a full South Korean call up this autumn as some suspect, that can only help his cause.
There may be a limit of 2 such players for Spurs, and the other player is probably Vuskovic now on loan in Belgium to help his ESC position.
