Hangul Jamo Extended-A is a Unicode block containing choseong (initial consonant) forms of archaic Hangul consonant clusters. They can be used to dynamically compose syllables that are not available as precomposed Hangul syllables in Unicode; specifically, syllables that are not used in standard modern Korean.
The following Unicode-related documents record the purpose and process of defining specific characters in the Hangul Jamo Extended-A block:
Count | L2 ID | WG2 ID | Document | |||
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5.2 | U+A960..A97C | 29 | N3168R | |||
N3168 | ||||||
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N3242 | ||||||
N3257 | ||||||
doc) | ||||||
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