CJK Unified Ideographs Extension C

CJK Unified Ideographs Extension C
CJK Unified Ideographs Extension C
Range	U+2A700..U+2B73F; (4,160 code points)
Plane	SIP
Scripts	Han
Assigned	4,154 code points
Unused	6 reserved code points
Unicode version history
5.2 (2009)	4,149 (+4,149)
14.0 (2021)	4,153 (+4)
15.0 (2022)	4,154 (+1)
Unicode documentation
	Code chart ∣ Web page
	Note:

CJK Unified Ideographs Extension C is a Unicode block containing rare and historic CJK ideographs for Chinese, Japanese, Korean, and Vietnamese submitted to the Ideographic Research Group between 2002 and 2006, plus five "urgently needed" characters added in Unicode versions 14.0 and 15.0, some of which had previously been mistakenly unified with other characters.^[3]

Quick Facts Range, Plane ...

The block has dozens of ideographic variation sequences registered in the Unicode Ideographic Variation Database (IVD).^[4]^[5] These sequences specify the desired glyph variant for a given Unicode character.

Note that the Katakana ligature 𪜈 (U+2A708) has been erroneously encoded in this block as a Han character.^[6]

[3]

[1]

[2]

[4]

[5]

[6]

Version	Final code points^[a]	Count	L2 ID	WG2 ID	IRG ID	Document
5.2	U+2A700..2B734	4,149	L2/02-462	N2563		Suignard, Michel (2002-12-11), CJK Compatibility Ideograph source reference fixes
			L2/06-390	N3134	N1226	Proposal to encode CJK Unified Ideographs Extension C1 in SIP, 2006-08-27
				N3153 (pdf, doc)		Umamaheswaran, V. S. (2007-02-16), "M49.19", Unconfirmed minutes of WG 2 meeting 49 AIST, Akihabara, Tokyo, Japan; 2006-09-25/29
			L2/06-363			Jenkins, John (2006-11-01), UTC Extension C1 Characters
			L2/06-351			Whistler, Ken (2006-11-06), "CJK Unified Ideographs Extension C", WG2 Consent Docket
			L2/06-390.1	N3134.1		Proposal to encode CJK Unified Ideographs Extension C1 in SIP, Data files part 1, 2006-11-13
			L2/06-390.2	N3134.2		Proposal to encode CJK Unified Ideographs Extension C1 in SIP, Data files part 2, 2006-11-13
			L2/06-390.3	N3134.3		Proposal to encode CJK Unified Ideographs Extension C1 in SIP, Data files part 3, 2006-11-13
				N3134.4		Proposal to encode CJK Unified Ideographs Extension C1 in SIP, Attachment B (detailed source information for every character), 2006-11-13
			L2/06-404	N3190		Lu, Qin (2006-12-21), CJK Ext. C Multicolumn Code Table
			L2/07-125	N3244		Review of CJK-C Repertoire, 2007-04-24
				N3267		Summary response to comments on CJK Ext. C in pDam4, 2007-04-25
				N3353 (pdf, doc)		Umamaheswaran, V. S. (2007-10-10), "M51.11g - M51.11j", Unconfirmed minutes of WG 2 meeting 51 Hanzhou, China; 2007-04-24/27
			L2/07-160			Jenkins, John (2007-05-10), U-source Correction for Extension C
			L2/07-118R2			Moore, Lisa (2007-05-23), "IRG - Review of CJK-C Repertoire", UTC #111 Minutes
			L2/07-244	N3281, N3281-A, N3281-B	N1331	Lu, Qin (2007-07-16), Request for Glyph Change in CJK C PDAM5
			L2/07-245	N3280, N3280-A, N3280-B	N1330	Lu, Qin (2007-07-16), Request for Removal of Characters in CJK C PDAM5
			L2/07-268	N3253 (pdf, doc)		Umamaheswaran, V. S. (2007-07-26), "M50.12", Unconfirmed minutes of WG 2 meeting 50, Frankfurt-am-Main, Germany; 2007-04-24/27
			L2/07-225			Moore, Lisa (2007-08-21), "B.3", UTC #112 Minutes
				N3279 (Part 1, Part 2, xls)		CJK Extension C code charts, spreadsheet, chart part 1, chart part 2, 2007-10-22
			L2/08-227			Suignard, Michel (2008-05-15), CJK Extension C Repertoire
			L2/08-310			Cook, Richard (2008-08-12), Fonts for Extension B and C and IRG
			L2/08-161R2			Moore, Lisa (2008-11-05), "Consensus 115-C21", UTC #115 Minutes, Approve 4,149 CJK ideographs in Extension C at codepoints U+2A700..U+2B734 for encoding in a future version of the standard.
			L2/10-195			Suignard, Michel (2010-05-10), CJK Charts
			L2/11-243	N4111		Sources for Orphaned CJK Ideographs, 2011-06-14
			L2/11-254			Constable, Peter (2011-06-20), "Update to UTR #45 U-Source Ideographs requested", UTC Liaison Report from WG2
				N4103		"Resolution 58.05 and M58.06", Unconfirmed minutes of WG 2 meeting 58, 2012-01-03
				N4558		Request of Changing One CJK_C Source and Glyph [U+2A92F], 2014-02-25
				N4553 (pdf, doc)		Umamaheswaran, V. S. (2014-09-16), "M62.01d, M62.01i", Minutes of WG 2 meeting 62 Adobe, San Jose, CA, USA
			L2/14-260	N4621		Suignard, Michel (2014-10-23), CJK chart and source references update
			L2/16-052	N4603 (pdf, doc)		Umamaheswaran, V. S. (2015-09-01), "M63.05", Unconfirmed minutes of WG 2 meeting 63
			L2/15-242	N4682		West, Andrew; Fan, Ming (2015-10-16), Error Report for CJK Unified Ideographs Extensions C and E
				N4739		"M64.06", Unconfirmed minutes of WG 2 meeting 64, 2016-08-31
			L2/17-180		N2202	Chan, Eiso (2017-06-02), Request for consideration to add kIRG_GSource values to thirteen ideographs and change two G-source glyphs for the Table of General Standard Chinese Characters [Affects U+24A7D, U+25ED7, U+2677C, U+26C21, U+2A8FB, U+2A917, and U+2AA30]
				N4987		Proposal on China's Horizontal Extension for 14 CJK Ideographs [Affects U+2A917 and 2AA30], 2018-06-13
				N4988		Proposal on Updating 11 G glyphs of CJK Unified Ideographs to ISO/IEC 10646 [Affects U+2A8FB], 2018-06-13
				N5020 (pdf, doc)		Umamaheswaran, V. S. (2019-01-11), "10.4.8 and 10.4.9", Unconfirmed minutes of WG 2 meeting 67
			L2/19-242	N5094	N2370	Chan, Eiso (2019-02-14), 20 questionable V4-Source characters in Ext. C and Ext. E [Affects U+2B1E5]
				N5086	N2379	Proposal of China's horizontal extension for technical used characters [Affects U+2AED5, U+2AEF3, U+2AF76 and U+2B09F], 2019-05-10
			L2/19-237	N5068		Editorial Report on Miscellaneous Issues (meeting IRG#52) [Affects U+2B1C3 and U+2B1E5], 2019-05-17
			L2/19-241	N5083	N2391	Errata report for WG2 submission_TCA [Affects U+2B1C3], 2019-05-31
			L2/22-077		N2512	Shin, SangHyun; Cho, Sungduk; Kim, Kyongsok (2021-11-02), A revised proposal requesting a Horizontal Extension of 51 Hanja chars (previously submitted for ExtF/G/H) [Affects U+2B249]
			L2/22-067			Lunde, Ken (2022-04-16), "19 [Affects U+2B249]", CJK & Unihan Group Recommendations for UTC #171 Meeting
			L2/22-061			Constable, Peter (2022-07-27), "E.1 Section 19 [Affects U+2B249]", Approved Minutes of UTC Meeting 171
			L2/22-258			Shin, SangHyun; Kim, Kyongsok (2022-10-14), Changing glyphs and IDSs of 97 KR Hanja chars containing '叱 (U+53F1)' [Affects U+2A741, 2B173, and 2B490]
			L2/22-259		N2556R2	Chan, Eiso; Collins, Lee; Việt, Ngô Trung (2022-10-20), IRGN2556R2 V-Source Glyph and Codes Updates [Affects U+2AB63, 2ACD8, and 2AF6F]
			L2/22-247			Lunde, Ken (2022-11-01), "25) L2/22-258 and 26) L2/22-259", CJK & Unihan Group Recommendations for UTC #173 Meeting
			L2/22-241			Constable, Peter (2022-11-09), "E.1 25) L2/22-258 and E.1 26) L2/22-259", Approved Minutes of UTC Meeting 173
14.0	U+2B735	1	L2/20-210			Chan, Eiso; Collins, Lee; Nhàn, Ngô Thanh (2020-06-10), Request to dis-unify U+722B
			L2/20-235			Lunde, Ken (2020-09-22), "L2/20-210: Request to dis-unify U+722B", Unihan Ad Hoc Recommendations for UTC #165 Meeting
			L2/20-237			Moore, Lisa (2020-10-27), "Consensus 165-C10", UTC #165 Minutes
	U+2B736	1	L2/20-291		N2443	Chan, Eiso (2020-12-19), Request for consideration to disunify U+3B3F
			L2/21-015			Lunde, Ken (2021-01-15), "L2/20-291: Request for consideration to disunify U+3B3F (IRG N2443)", CJK & Unihan Group Recommendations for UTC #166 Meeting
			L2/21-009			Moore, Lisa (2021-01-27), "C.1 — L2/20-291: Request for consideration to disunify U+3B3F (IRG N2443)", UTC #166 Minutes
	U+2B737	1	L2/21-044		N2446	UNC Proposal for One G Source Ideograph, 2021-01-07
			L2/21-015			Lunde, Ken (2021-01-15), "L2/21-044: UNC Proposal for One G-Source Ideograph (IRG N2446)", CJK & Unihan Group Recommendations for UTC #166 Meeting
			L2/21-009			Moore, Lisa (2021-01-27), "C.1 — L2/21-044 UNC Proposal for One G Source Ideograph", UTC #166 Minutes
	U+2B738	1	L2/21-046		N2447	Jiang, Kushim (2021-01-15), Disunification of U+2F83A
			L2/21-072			Lunde, Ken (2021-04-26), "L2/21-046: Disunification of U+2F83A (IRG N2447)", CJK & Unihan Group Recommendations for UTC #167 Meeting
			L2/21-066			Moore, Lisa (2021-05-05), "Consensus 167-C3", UTC #167 Minutes
15.0	U+2B739	1	L2/22-042		N2543	Lunde, Ken (2022-02-18), Proposal to disunify U+5F50 into three separate ideographs-redux
			L2/22-076		N2538R	Submission of One Character for Macao Supplementary Character Set (MSCS), 2022-02-28
			L2/22-091			Chan, Eiso; Collins, Lee; Việt, Ngô Trung (2022-03-10), Vietnam Response to IRGN2509
			L2/22-067			Lunde, Ken (2022-04-16), "18", CJK & Unihan Group Recommendations for UTC #171 Meeting
			L2/22-061			Constable, Peter (2022-07-27), "E.1 Section 18", Approved Minutes of UTC Meeting 171
Proposed code points and characters names may differ from final code points and names

CJK Unified Ideographs Extension C

Block

History

References

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