In The Unicode Standard, Tangut script implementation is discussed in  Chapter 18 East Asia.

The Tangut script was encoded in The Unicode Standard version 9.0. The script is now encoded in the following blocks:

BlocksCharacter RangeAdded in Unicode VersionUnicode chart
Ideographic Symbols and Punctuation 16FE0..16FFF 9.0  U16FE0
Tangut 17000..18AFF 9.0  U17000
Tangut Components 18800..18AFF 9.0  U18800

A number of proposals for its inclusion have been submitted to the Unicode Technical Committee and WG2:

2007-05-09 Proposal to encode Tangut characters in UCS Plane 1 — Richard Cook ( WG2 N3297,  L2/07-143)

2007-05-10 Proposed Draft Unicode Technical Report #43, A User's Guide to the UniTangut Database — Richard Cook ( L2/07-158)

2007-07-24 Tangut Proposal - Multi Column Chart — Richard Cook ( WG2 N3297a,  L2/07-144)

2007-07-24 Tangut Proposal - Single Column Chart — Richard Cook ( WG2 N3297b,  L2/07-145)

2007-07-24 Tangut Proposal Code Chart Update — Richard Cook ( L2/07-229)

2007-09-01 Tangut Background — Richard Cook ( WG2 N3307,  L2/07-289)

2007-09-17 Expert feedback on Chinese NB input on WG2/N3297 Tangut Encoding Proposal — Richard Cook ( WG2 N3343,  L2/07-302)

2007-09-18 Response to UC Berkeley’s proposals on Tangut — China N.B. ( WG2 N3338,  L2/07-301)

2007-09-24 Proposed Draft Unicode Technical Report #43, A User's Guide to the UniTangut Database [2nd revision; replaces L2/07-158] — Richard Cook —  L2/07-290)

2007-09-24 UniTangut.txt draft data file — Richard Cook ( L2/07-291)

2008-04-19 Comments on N3297: Proposal to encode Tangut characters in UCS Plane 1 and Charts — UK National Body ( WG2 N3448,  L2/08-175)

2008-04-22 Comments on N3297: Proposal to encode Tangut characters in UCS Plane 1 and charts — Joint contribution from China and US ( WG2 N3467,  L2/08-187)

2008-07-15 Tangut 5 column chart — Richard Cook ( L2/08-259)

2008-09-01 Poposal to encode Tangut Radicals and CJK Strokes in the UCS — Michael Everson, Andrew West ( WG2 N3495,  L2/08-335)

2008-09-01 Review of Proposed Tangut Repertoire — United Kingdom ( WG2 N3496,  L2/08-337)

2008-09-03 Single-Column Tangut Code Chart — Richard Cook ( L2/08-336)

2008-09-24 Expert Feedback on the proposed Tangut character set in PDAM 6.2 — Michael Everson, Andrew West ( WG2 N3498,  L2/08-341)

2008-10-10 The UCS Tangut Repertory — Richard Cook, Ken Lunde ( WG2 N3521,  L2/08-349)

2008-10-13 Response from Tangut scholars of China on the Tangut Unicode proposal — China N.B. ( WG2 N3539.doc,  L2/08-376)

2008-10-13 Report from the Ad Hoc on Tangut — Erkki I. Kolehmainen, ( WG2 N3541.doc,  L2/08-377)

2008-10-29 Comments on the Tangut radicals and strokes proposal (N3495 = L2/08-335) — Richard Cook, Deborah Anderson —  L2/08-399)

2009-03-04 Request for Tangut font and mappings from N3577 to Amendment 7 repertoire — Deborah Anderson, Richard Cook ( WG2 N3586)

2009-04-08 Proposal for a revised Tangut character set for encoding in the SMP of the UCS — Michael Everson, Nathan Hill, Guillaume Jacques, Andrew West, Viacheslav Zaytsev ( WG2 N3577,  L2/09-095,  L2/09-115)

2009-04-08 Proposal for a revised Tangut character set for encoding in the SMP of the UCS - Appendix A — Michael Everson, Nathan Hill, Guillaume Jacques, Andrew West, Viacheslav Zaytsev ( WG2 N3577-a,  L2/09-116)

2009-04-08 Proposal for a revised Tangut character set for encoding in the SMP of the UCS - Appendix B — Michael Everson, Nathan Hill, Guillaume Jacques, Andrew West, Viacheslav Zaytsev ( WG2 N3577-b,  L2/09-117)

2009-04-20 Tangut Ad-Hoc Meeting Report — Tangut Ad-hoc committee ( WG2 N3629,  L2/09-169)

2009-04-30 Proposal to redefine the scope of Ideographic Description Sequences and to encode four additional Ideographic Description Characters — Andrew West ( WG2 N3643,  L2/09-171)

2010-04-05 Final proposal for encoding the Tangut script in the SMP of the UCS — China, Ireland, and UK ( WG2 N3797,  WG2 N3797-a,  WG2 N3797-b,  L2/10-095)

2010-04-16 Comments on Tangut proposal N3797 — Deborah Anderson, Richard Cook ( WG2 N3821,  L2/10-131)

2010-04-21 Tangut Ad hoc report — Deborah Anderson ( WG2 N3833,  L2/10-141)

2011-05-22 Report on Tangut Encoding — UK via Andrew West "( WG2 N4033,  WG2 N4033a,  WG2 N4033b,  L2/11-214)

2011-05-26 Tangut chart to supplement N4033 “Report on Tangut Encoding” — Michael Everson, Andrew West ( WG2 N4083,  L2/11-204)

2011-05-26 Comments on Tangut report N4033 — Richard Cook and Deborah Anderson ( WG2 N4094)

2012-10-02 Proposal to encode the Tangut script in the UCS — Andrew West, Viacheslav Zaytsev, Michael Everson ( WG2 N4325,  L2/12-313)

2012-10-02 Proposal to encode Tangut radicals in the UCS — Andrew West, Viacheslav Zaytsev, Michael Everson ( WG2 N4326,  L2/12-314)

2012-10-02 Code chart for Tangut ideographs and Tangut radicals — Michael Everson, Andrew West ( WG2 N4327,  L2/12-315)

2012-10-20 Comments on N4325, 4326 and N4327 (Tangut) — China N.B. ( WG2 N4370,  WG2 N4370.doc)

2013-06-10 Explanation on the Re-facture of Tangut Fonts — China N.B. ( WG2 N4455)

2013-12-10 Summary of Tangut meeting (Beijing, China) — Deborah Anderson ( WG2 N4516,  L2/13-241)

2014-01-21 Code chart for the Tangut script — Andrew West, Michael Everson, Han Xiaomang, Jia Changye, Jing Yongshi, Viacheslav Zaytsev ( WG2 N4525,  L2/14-021)

2014-01-21 Proposal to encode the Tangut script in the UCS — Andrew West, Michael Everson, Han Xiaomang, Jia Changye, Jing Yongshi, Viacheslav Zaytsev ( WG2 N4522,  L2/14-023)

2014-02-20 Character Name considerations — Michel Suignard ( WG2 N4543,  L2/14-022)

2014-09-21 Tangut glyph corrections — Andrew West, Michael Everson, Viacheslav Zaytsev ( WG2 N4588,  L2/14-209)

2014-09-29 Review of N4558R Tangut glyph corrections — China NB ( WG2 N4640)

2014-09-29 Ad Hoc Reports for Tangut and Khitan Large Script — Deborah Anderson ( WG2 N4642,  L2/14-246)

2014-09-30 Proposal to encode Tangut radicals in the UCS — Andrew West, Viacheslav Zaytsev, Sun Bojun, Michael Everson ( WG2 N4636,  L2/14-228)

2014-10-01 Tangut glyph corrections — Andrew West, Viacheslav Zaytsev, Sun Bojun, Michael Everson ( WG2 N4588,  L2/14-209)

2014-10-10 Source references file for Tangut Ideographs — WG2 ( L2/14-294)

2014-12-01 Discussion of Tangut character L2008-4148 — Andrew West, Viacheslav Zaytsev, Michael Everson (WG2 N4650,  L2/14-301)

2015-07-16 Review of Tangut repertoire in DAM ballot — Andrew West, Michael Everson, Viacheslav Zaytsev ( L2/15-175)

2015-10-13 Reply to WG2N4650 and WG2N4667 on Tangut — China N.B. (WG2 N4684,  L2/15-279)

2016-04-21 Glyph Corrections for 3 Tangut ideographs — Andrew West, Viacheslav Zaytsev, Sun Bojun (WG2 N4723,  L2/16-112)

UTC #147 Minutes ( L2/16-121) (See C.14.3 for decision and action items)

2016-04-21 Proposal to encode five additional Tangut ideographs Andrew West, Viacheslav Zaytsev, Sun Bojun (WG2 N4724,  L2/16-095)

UTC #147 Minutes ( L2/16-121) (See C.14.1 for decision and action items)

2016-04-21 Preliminary proposal to define 357 variation sequences for Tangut ideographs — Andrew West (WG2 N4722,  L2/16-111)

UTC #147 Minutes ( L2/16-121) (See C.14.2 for decision and action items)

2016-05-05 Name change for U+16FE0 — Deborah Anderson, Ken Whistler ( L2/16-129)

UTC #147 Minutes ( L2/16-121) (See C.14.4 for decision and action items)

2017-09-07 Glyph Corrections for 31 Tangut ideographs and one Tangut component — Andrew West, Viacheslav Zaytsev (WG2 N4850,  L2/17-313)

2017-09-07 Proposal to encode six additional Tangut ideographs — Andrew West, Viacheslav Zaytsev (WG2 N4851,  L2/17-314)

2017-09-22 Tangut Character Additions and Glyph Corrections (replaces L2/17-313 and L2/17-314; WG2 N4896) — Andrew West, Viacheslav Zaytsev, Sun Bojun, Jerry You (WG2 N4896,  L2/17-360)

UTC #153 Minutes ( L2/17-362) (See B.1.14 for decision and action items)