GB 12345

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GB 12345,^[1] entitled Code of Chinese ideogram set for information interchange supplementary set (Chinese: 信息交換用漢字編碼字符集　輔助集), is a Traditional Chinese character set standard established by China, and can be thought as the traditional counterpart of GB 2312. It is used as an encoding of traditional Chinese characters, although it is not as commonly used as Big5. It has 6,866 characters, and has no relationship nor compatibility with Big5 and CNS 11643.