Code point
U+321B
Glyph appearance depends on your fonts.
U+321B
So<compat> 0028 1112 1161 0029U+321B PARENTHESIZED HANGUL HIEUH A is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Enclosed CJK Letters and Months block.
Choose the representation you need, then copy its value.
U+321B
12827
㈛
㈛
E3 88 9B
321B
0000321B
%E3%88%9B
\u321B
\u321B
\u321B
\321B