GB 12052

GB 12052-89, entitled Korean character coded character set for information interchange, is a Korean-language character set standard established by 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 (as in ISO/IEC 2022), and the two-byte code point of each character is expressed in the qu-wei form, which specifies a row (qu 区) and the position of the character within the row (cell, wei 位).

The rows (numbered from 1 to 94) contain characters as follows: The rows 10–15 and 73–94 are unassigned.
 * 01–09: identical to GB 2312, except 03-04 (￥ in GB 2312, ＄ in GB 12052)
 * 16–37: modern Hangul syllables and jamo, level 1 (2,017 syllables and 51 jamo)
 * 38–52: modern Hangul syllables, level 2 (1,356 characters)
 * 53–72: archaic Hangul syllables and jamo (1,683 syllables and 96 jamo), and 94 Chinese characters

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 (see row 4 of KS X 1001 and row 4 of KPS 9566).
 * 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