GB 12052

GB 12052-89, entitled Korean character coded character set for information interchange, is a character set standard established by China for the Korean language in China. It consists of a total of 5,979 characters, and has no relationship nor compatibility with South Korea's KS X 1001 and North Korea's KPS 9566.

Characters

Characters in GB 12052 are arranged in a 94×94 grid, and the two-byte code point of each character is expressed in the qu-''wei form, which specifies a row and the position of the character within the row.
The rows contain characters as follows:

01–09: identical to GB 2312, except 03-04

16–37: modern Hangul syllables and jamo, level 1
38–52: modern Hangul syllables, level 2
53–72: archaic Hangul syllables and jamo'', and 94 Chinese characters

The rows 10–15 and 73–94 are unassigned.

Errors

There are some errors in the standard:

41-64: 믃 in the fold-out table, 믌 in the standard proper – should be 믃
46-65: 틘 in the fold-out table, 퇸 in the standard proper – should be 틘
49-37: 뗸 in the fold-out table, 뎬 in the standard proper – should be 뗸
51-82: 윹 in the fold-out table, 율 in the standard proper – should be 윹
53-67: ᄀᆈ in the fold-out table, missing in the standard proper – should be ᄀᆈ
72-88: missing in the fold-out table, 夞 in the standard proper – should be 夞

Precomposed modern Hangul sets

Unlike KS X 1001 and KPS 9566, GB 12052

does not encode jamo in a separate section.
has two levels of precomposed modern Hangul syllables.

However, like KS X 1001, GB 12052 lacks the initial+vowel counterparts for some initial+vowel+final syllables:

땩, 땬, 땽: missing 땨
뗙, 뗜, 뗨, 뗩, 뗭: missing 뗘
뗸, 똉: missing 뗴
뚁: missing 뚀
뚼: missing 뚸
뼹: missing 뼤
쪤, 쪵: missing 쪠