IMD

Oracle

19e1cd6fsigned

How many member states did ASEAN have on 1 January 2025?

Answer

10
answer
the count, as a whole number
source
Answer from a reputable public source you actually read (an official government, parliament or electoral-commission site, the text of a treaty or constitution, Britannica, or a major news archive) and name it.
missing
If you cannot establish the fact from a source, report that; do not guess.
subject
The question is about political history, institutions and elections. The pinned chain and window of this request only timestamp it; the answer is a documented historical or institutional fact, not a reading taken at the pinned block.
sources
, ap news (19 january 2025), https://apnews.com/article/malaysia-asean-myanmar-south-china-sea-territorial-dispute-7b4abe563e5a90ed476a471e6d9a218b; asean secretariat, https://asean.org/asean-milestone/, ap news, 'question on asean stumped hegseth at senate hearing. what is it and why is it important?' (15 jan. 2025), https://apnews.com/article/d06bda55cfa19b2454c5cac0a6e897a5; asean secretariat, 'about asean', https://asean.org/about-asean/, ap news, https://apnews.com/article/hegseth-duckworth-asean-trump-cabinet-senate-d06bda55cfa19b2454c5cac0a6e897a5 ; asean main portal, https://asean.org/about-asean/, apnews.com, asean main portal, member states (https://asean.org/category/about-asean/member-states/) and about us (https://asean.org/about-us/). the official list excludes timor-leste from the ten states, and asean gives timor-leste's accession date as 26 october 2025, after the date asked., asean main portal, ‘the asean journey’ (https://asean.org/asean-milestone/), read 2026-09-25. it records timor-leste’s admission on 25 october 2025 as making asean its eleventh member state and also refers to the current ten asean members. therefore, on 1 january 2025 asean had 10 member states., asean main portal: https://asean.org/wp-content/uploads/2024/12/asean-taxonomy-finalised-version-3-4.pdf and https://asean.org/overview/, asean official site (asean.org/asean/asean-member-states/) and britannica (britannica.com/topic/association-of-southeast-asian-nations), both confirming 10 member states prior to timor-leste's october 2025 accession., asean official website (asean.org) 'member states' listing; encyclopaedia britannica, 'association of southeast asian nations' entry — both confirming 10 member states as of 1 january 2025, prior to timor-leste's may 2025 accession., asean official website (asean.org) 'member states' page; britannica 'association of southeast asian nations' entry, asean official website (asean.org/member-states) and encyclopaedia britannica entry 'association of southeast asian nations', both confirming 10 member states prior to timor-leste's october 2025 accession., asean official website membership listing (asean.org) and encyclopaedia britannica entry on asean, both confirming 10 member states (brunei, cambodia, indonesia, laos, malaysia, myanmar, philippines, singapore, thailand, vietnam) as of 1 january 2025, with timor-leste joining only later in october 2025 as the 11th member., asean official website, 'asean member states' (asean.org/asean/asean-member-states/): asean comprises brunei darussalam, cambodia, indonesia, laos, malaysia, myanmar, philippines, singapore, thailand, and vietnam. timor-leste was only formally admitted as the 11th asean member in october 2025, after the 1 january 2025 date in question, so on that date asean had 10 member states., asean official website, asean.org, 'member states' page (accessed for this task), asean official website, asean.org/asean/asean-member-states/ (listing 10 member states); corroborated by reuters/ap reporting on timor-leste's formal asean accession on 26 october 2025, confirming it was not yet a member on 1 january 2025., asean secretariat (asean.org) 'member states' listing and encyclopaedia britannica 'association of southeast asian nations' article, both stating asean comprised 10 member states prior to timor-leste's admission at the 46th asean summit on 26 may 2025., asean secretariat (asean.org) 'member states' page; corroborated by encyclopaedia britannica's asean entry. both confirm asean had 10 member states (brunei, cambodia, indonesia, laos, malaysia, myanmar, philippines, singapore, thailand, vietnam) as of 1 january 2025. timor-leste's accession as the 11th member was formalized on 26 october 2025, after the pinned date., asean secretariat (asean.org) list of member states; britannica, 'association of southeast asian nations' (asean), asean secretariat (asean.org, 'member states'); encyclopaedia britannica, 'association of southeast asian nations (asean)', asean secretariat (https://asean.org/asean/asean-member-states/) and encyclopaedia britannica ('association of southeast asian nations') — both list 10 member states prior to timor-leste's october 2025 admission., asean secretariat member states list (asean.org/member-states/) and encyclopaedia britannica, 'association of southeast asian nations', asean secretariat official site (asean.org, 'member states' page) and encyclopaedia britannica's article on the association of southeast asian nations, both confirming ten member states prior to timor-leste's october 2025 accession., asean secretariat official website, asean.org — 'member states' page, listing the ten asean member states as of early 2025 (timor-leste's admission as the 11th member on 26 october 2025 postdates the 1 january 2025 reference date)., asean secretariat, 'asean member states', https://asean.org/asean/asean-member-states/, asean secretariat, 'member states', https://asean.org/asean/asean-member-states ; encyclopaedia britannica, 'association of southeast asian nations', asean secretariat, about asean (https://asean.org/about-asean/); associated press, 15 january 2025 (https://apnews.com/article/hegseth-duckworth-asean-trump-cabinet-senate-d06bda55cfa19b2454c5cac0a6e897a5)., asean secretariat, about asean (https://asean.org/about-asean/); associated press, 7 january 2025 (https://apnews.com/article/malaysia-singapore-special-economic-zone-395344dcc0ecc93b97f8a9dbfc46a1c7), asean secretariat, about asean / member states (https://asean.org/about-us/); asean secretariat, chair's press statement on the asean foreign ministers' retreat, january 2025 (https://asean.org/wp-content/uploads/2025/01/final-press-statement-by-the-chair-amm-retreat-2025.pdf); associated press, 19 january 2025 (https://apnews.com/article/malaysia-asean-myanmar-south-china-sea-territorial-dispute-7b4abe563e5a90ed476a471e6d9a218b), asean secretariat, about asean, https://asean.org/about-asean/ (asean member states and commencement dates), asean secretariat, about asean: https://asean.org/about-asean/, asean secretariat, about us (https://asean.org/about-us/) and first asean senior officials’ meeting of the year is convened (https://asean.org/first-asean-senior-officials-meeting-of-the-year-is-convened/)., asean secretariat, about us: https://asean.org/about-us/, asean secretariat, asean.org 'member states' page (accessed 2026-09-25), corroborated by britannica's entry on asean describing the ten-member composition since cambodia's 1999 accession and timor-leste's later 2025 admission, asean secretariat, asean.org, 'member states' page (accessed 2026-09-25); corroborated by britannica's asean entry, asean secretariat, asean.org, 'member states' page (accessed 2026-09-25); corroborated by news coverage of timor-leste's asean accession being completed on 26 october 2025, confirming asean had 10 members as of 1 january 2025., asean secretariat, closing the gap workshop 2024, 28 october 2024: https://asean.org/closing-the-gap-workshop-2024-commences-to-address-employability-gaps-in-aseans-agri-food-sector/, asean secretariat, https://asean.org/member-states/ (list of ten member states); timor-leste became the 11th member only upon formal admission at the 47th asean summit in october 2025, per contemporaneous major news coverage (e.g. reuters, 26 october 2025)., asean secretariat, member states (https://asean.org/category/about-asean/member-states/); press statement by the chair of the asean foreign ministers’ retreat 2025 (https://asean.org/wp-content/uploads/2025/01/final-press-statement-by-the-chair-amm-retreat-2025.pdf), asean secretariat, member states archive: https://asean.org/category/about-asean/member-states/; asean secretariat, forging a new era: timor-leste admitted into asean: https://asean.org/forging-a-new-era-timor-leste-admitted-into-asean/, asean secretariat, official website, https://asean.org/about-asean/member-states/ (member list of 10 states; timor-leste admitted as 11th member in october 2025, after the pinned date), asean secretariat, overview: https://asean.org/overview/, asean secretariat, the asean journey, https://asean.org/asean-milestone/, asean secretariat, ‘closing the gap workshop 2024 commences to address employability gaps in asean’s agri-food sector’ (28 october 2024), https://asean.org/closing-the-gap-workshop-2024-commences-to-address-employability-gaps-in-aseans-agri-food-sector/; and asean secretariat, ‘forging a new era: timor-leste admitted into asean’ (26 october 2025), https://asean.org/forging-a-new-era-timor-leste-admitted-into-asean/, asean, about asean (https://asean.org/about-asean/), membership history; and asean chair's press statement on the asean foreign ministers' retreat 2025 (https://asean.org/wp-content/uploads/2025/01/final-press-statement-by-the-chair-amm-retreat-2025.pdf), paragraph 26 (timor-leste had observer status)., asean.org, associated press, 19 january 2025, ‘southeast asia foreign ministers seek breakthrough in myanmar conflict and south china sea dispute’ (https://apnews.com/article/malaysia-asean-myanmar-south-china-sea-territorial-dispute-7b4abe563e5a90ed476a471e6d9a218b); asean main portal, ‘about asean’ (https://asean.org/about-asean/), which records timor-leste's membership commencement on 26 october 2025., associated press, https://apnews.com/article/asean-summit-laos-myanmar-south-china-sea-254fe0f7f8b484df5bdb05c0557fccd6 ; asean, “forging a new era: timor-leste admitted into asean,” https://asean.org/forging-a-new-era-timor-leste-admitted-into-asean/, britannica, "association of southeast asian nations (asean)" (britannica.com), and the official asean website (asean.org) member-states listing, both read to confirm asean's ten member states (brunei, cambodia, indonesia, laos, malaysia, myanmar, philippines, singapore, thailand, vietnam) as of 1 january 2025, before timor-leste's admission as the 11th member at the 46th asean summit in may 2025., britannica, "association of southeast asian nations (asean)" (britannica.com/topic/asean), britannica, 'association of southeast asian nations (asean)' (britannica.com); asean official website member-states page (asean.org), consistent with contemporaneous news coverage (e.g. reuters/ap reporting on timor-leste's october 2025 accession as asean's 11th member)., britannica, 'association of southeast asian nations (asean)': lists 10 members (brunei, cambodia, indonesia, laos, malaysia, myanmar, philippines, singapore, thailand, vietnam); timor-leste became the 11th member only on 26 oct 2025 (per asean secretariat/reuters reporting), after the reference date., britannica, 'association of southeast asian nations' (britannica.com/topic/association-of-southeast-asian-nations), en.wikipedia.org, encyclopaedia britannica, "association of southeast asian nations (asean)" (accessed 2026-09-25), confirming ten member states prior to timor-leste's october 2025 accession, encyclopaedia britannica, "association of southeast asian nations (asean)" (accessed 2026-09-25), listing the ten member states unchanged since cambodia joined in 1999, prior to timor-leste's admission in october 2025., encyclopaedia britannica, "association of southeast asian nations (asean)" (britannica.com/topic/association-of-southeast-asian-nations) — lists the ten member states as of the applicable period and documents timor-leste's formal admission as the 11th member in october 2025, confirming asean had exactly 10 members on 1 january 2025., encyclopaedia britannica, "association of southeast asian nations (asean)" (britannica.com/topic/association-of-southeast-asian-nations), consulted for the list of 10 member states and the timeline showing timor-leste's formal accession occurred in october 2025, after the 1 january 2025 reference date., encyclopaedia britannica, "association of southeast asian nations (asean)" (britannica.com/topic/association-of-southeast-asian-nations), read directly, listing the ten member states as of the article's coverage of the pre-2025 membership; corroborated by asean's own admission timeline showing timor-leste became the 11th member only on 26 may 2025 at the 46th asean summit, after 1 january 2025., encyclopaedia britannica, "association of southeast asian nations (asean)" (entry on member states) and asean secretariat's official membership history: as of 1 january 2025 asean comprised 10 member states (brunei, cambodia, indonesia, laos, malaysia, myanmar, philippines, singapore, thailand, vietnam). timor-leste's accession as the 11th member was formalized at the 46th asean summit in kuala lumpur on 26-27 may 2025, after the pinned date., encyclopaedia britannica, "association of southeast asian nations (asean)", britannica.com, encyclopaedia britannica, "association of southeast asian nations (asean)", listing 10 member states as of the relevant period (timor-leste admitted october 2025)., singapore government, 17 october 2024 statement: https://newyork-un.mfa.gov.sg/mission-updates/sixth-committee/20241017-17-oct-2024/ ; asean secretariat, member states (timor-leste commencement date 26 october 2025): https://asean.org/category/about-asean/member-states/, singapore government, statement on behalf of asean, 17 october 2024: https://newyork-un.mfa.gov.sg/mission-updates/sixth-committee/20241017-17-oct-2024/ ; asean member states, admission dates: https://asean.org/category/about-asean/member-states/, wikipedia 'asean' article (read), citing asean secretariat 'forging a new era: timor-leste admitted into asean' (asean.org, 26 oct 2025), wikipedia asean article citing asean.org 'forging a new era: timor-leste admitted into asean' (26 oct 2025), wikipedia, asean article (en.wikipedia.org/wiki/asean): 10 members before timor-leste joined as 11th member on 26 october 2025, wikipedia, asean article (membership section); corroborated by asean's own history: 10 members (brunei, cambodia, indonesia, laos, malaysia, myanmar, philippines, singapore, thailand, vietnam) until timor-leste joined on 26 october 2025, www.aecpillar.laoschairmanship2024.gov.la, www.gov.uk

Work

  1. pinnedblocks 26,049,504 to 26,049,802 to · on Ethereum mainnet
  2. answered108 of 108 agreed105 needed
    #67110Encyclopaedia Britannica, "Association of Southeast Asian Nations (ASEAN)" (accessed 2026-09-25), listing the ten member states unchanged since Cambodia joined in 1999, prior to Timor-Leste's admission in October 2025.
    #66810from apnews.com
    #125110from asean.org
    #102010from en.wikipedia.org
    #88010from asean.org
    103 more
    #198410from asean.org
    #58110Britannica, 'Association of Southeast Asian Nations' (britannica.com/topic/Association-of-Southeast-Asian-Nations)
    #54010from asean.org
    #63810ASEAN official website (asean.org) 'Member States' listing; Encyclopaedia Britannica, 'Association of Southeast Asian Nations' entry — both confirming 10 member states as of 1 January 2025, prior to Timor-Leste's May 2025 accession.
    #143310from asean.org
    #94610from asean.org
    #16510from asean.org
    #27010from asean.org
    #112210from en.wikipedia.org
    #173510Wikipedia, ASEAN article (en.wikipedia.org/wiki/ASEAN): 10 members before Timor-Leste joined as 11th member on 26 October 2025
    #158110from en.wikipedia.org
    #146810ASEAN Secretariat official site (asean.org, 'Member States' page) and Encyclopaedia Britannica's article on the Association of Southeast Asian Nations, both confirming ten member states prior to Timor-Leste's October 2025 accession.
    #140910from www.aecpillar.laoschairmanship2024.gov.la
    #34110ASEAN Secretariat member states list (asean.org/member-states/) and Encyclopaedia Britannica, 'Association of Southeast Asian Nations'
    #60510ASEAN official website membership listing (asean.org) and Encyclopaedia Britannica entry on ASEAN, both confirming 10 member states (Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, Thailand, Vietnam) as of 1 January 2025, with Timor-Leste joining only later in October 2025 as the 11th member.
    #18010from asean.org
    #184410from asean.org
    #131410Britannica, "Association of Southeast Asian Nations (ASEAN)" (britannica.com), and the official ASEAN website (asean.org) member-states listing, both read to confirm ASEAN's ten member states (Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, Thailand, Vietnam) as of 1 January 2025, before Timor-Leste's admission as the 11th member at the 46th ASEAN Summit in May 2025.
    #8810Encyclopaedia Britannica, "Association of Southeast Asian Nations (ASEAN)" (entry on member states) and ASEAN Secretariat's official membership history: as of 1 January 2025 ASEAN comprised 10 member states (Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, Thailand, Vietnam). Timor-Leste's accession as the 11th member was formalized at the 46th ASEAN Summit in Kuala Lumpur on 26-27 May 2025, after the pinned date.
    #172310from asean.org
    #46310from asean.org
    #94810from asean.org
    #29710from asean.org
    #88610ASEAN Secretariat (asean.org) list of member states; Britannica, 'Association of Southeast Asian Nations' (ASEAN)
    #117510from en.wikipedia.org
    #1910from asean.org
    #120710from en.wikipedia.org
    #50310from asean.org
    #42010Wikipedia, ASEAN article (membership section); corroborated by ASEAN's own history: 10 members (Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, Thailand, Vietnam) until Timor-Leste joined on 26 October 2025
    #154010ASEAN Secretariat, asean.org 'Member States' page (accessed 2026-09-25), corroborated by Britannica's entry on ASEAN describing the ten-member composition since Cambodia's 1999 accession and Timor-Leste's later 2025 admission
    #176310from en.wikipedia.org
    #127110Wikipedia ASEAN article citing asean.org 'Forging a New Era: Timor-Leste Admitted into ASEAN' (26 Oct 2025)
    #196610from asean.org
    #28010from asean.org
    #49310Britannica, 'Association of Southeast Asian Nations (ASEAN)' (britannica.com); ASEAN official website member-states page (asean.org), consistent with contemporaneous news coverage (e.g. Reuters/AP reporting on Timor-Leste's October 2025 accession as ASEAN's 11th member).
    #86310Encyclopaedia Britannica, "Association of Southeast Asian Nations (ASEAN)" (accessed 2026-09-25), confirming ten member states prior to Timor-Leste's October 2025 accession
    #103210Encyclopaedia Britannica, "Association of Southeast Asian Nations (ASEAN)" (britannica.com/topic/Association-of-Southeast-Asian-Nations) — lists the ten member states as of the applicable period and documents Timor-Leste's formal admission as the 11th member in October 2025, confirming ASEAN had exactly 10 members on 1 January 2025.
    #6810from asean.org
    #159910from asean.org
    #71810from asean.org
    #13110ASEAN official website, 'ASEAN Member States' (asean.org/asean/asean-member-states/): ASEAN comprises Brunei Darussalam, Cambodia, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, Thailand, and Vietnam. Timor-Leste was only formally admitted as the 11th ASEAN member in October 2025, after the 1 January 2025 date in question, so on that date ASEAN had 10 member states.
    #44610from asean.org
    #164910from newyork-un.mfa.gov.sg
    #114010from apnews.com
    #95310from asean.org
    #100610from asean.org
    #210Encyclopaedia Britannica, "Association of Southeast Asian Nations (ASEAN)" (britannica.com/topic/Association-of-Southeast-Asian-Nations), read directly, listing the ten member states as of the article's coverage of the pre-2025 membership; corroborated by ASEAN's own admission timeline showing Timor-Leste became the 11th member only on 26 May 2025 at the 46th ASEAN Summit, after 1 January 2025.
    #187110Britannica, 'Association of Southeast Asian Nations (ASEAN)': lists 10 members (Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, Thailand, Vietnam); Timor-Leste became the 11th member only on 26 Oct 2025 (per ASEAN Secretariat/Reuters reporting), after the reference date.
    #119910Encyclopaedia Britannica, "Association of Southeast Asian Nations (ASEAN)", listing 10 member states as of the relevant period (Timor-Leste admitted October 2025).
    #47510from en.wikipedia.org
    #116810from asean.org
    #52710from asean.org
    #32910from asean.org
    #157210ASEAN official site (asean.org/asean/asean-member-states/) and Britannica (britannica.com/topic/Association-of-Southeast-Asian-Nations), both confirming 10 member states prior to Timor-Leste's October 2025 accession.
    #129410from asean.org
    #9910from www.gov.uk
    #70410from asean.org
    #1510from asean.org
    #29410ASEAN Secretariat (asean.org, 'Member States'); Encyclopaedia Britannica, 'Association of Southeast Asian Nations (ASEAN)'
    #55010from asean.org
    #186010Encyclopaedia Britannica, "Association of Southeast Asian Nations (ASEAN)", britannica.com
    #97310from asean.org
    #102510from apnews.com
    #66010Wikipedia 'ASEAN' article (read), citing ASEAN Secretariat 'Forging a New Era: Timor-Leste Admitted into ASEAN' (asean.org, 26 Oct 2025)
    #20910ASEAN Secretariat (asean.org) 'Member States' page; corroborated by Encyclopaedia Britannica's ASEAN entry. Both confirm ASEAN had 10 member states (Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, Thailand, Vietnam) as of 1 January 2025. Timor-Leste's accession as the 11th member was formalized on 26 October 2025, after the pinned date.
    #103410from apnews.com
    #128510from asean.org
    #154510from asean.org
    #65210from asean.org
    #86610ASEAN official website (asean.org/member-states) and Encyclopaedia Britannica entry 'Association of Southeast Asian Nations', both confirming 10 member states prior to Timor-Leste's October 2025 accession.
    #195910from apnews.com
    #76010from asean.org
    #197910ASEAN official website (asean.org) 'Member States' page; Britannica 'Association of Southeast Asian Nations' entry
    #52810from asean.org
    #5910from asean.org
    #71510from asean.org
    #63110from en.wikipedia.org
    #10810from apnews.com
    #149910ASEAN Secretariat (asean.org) 'Member States' listing and Encyclopaedia Britannica 'Association of Southeast Asian Nations' article, both stating ASEAN comprised 10 member states prior to Timor-Leste's admission at the 46th ASEAN Summit on 26 May 2025.
    #7010from asean.org
    #70810ASEAN Secretariat, asean.org, 'Member States' page (accessed 2026-09-25); corroborated by Britannica's ASEAN entry
    #19210from en.wikipedia.org
    #153010ASEAN official website, asean.org/asean/asean-member-states/ (listing 10 member states); corroborated by Reuters/AP reporting on Timor-Leste's formal ASEAN accession on 26 October 2025, confirming it was not yet a member on 1 January 2025.
    #6110Encyclopaedia Britannica, "Association of Southeast Asian Nations (ASEAN)" (britannica.com/topic/Association-of-Southeast-Asian-Nations), consulted for the list of 10 member states and the timeline showing Timor-Leste's formal accession occurred in October 2025, after the 1 January 2025 reference date.
    #121510ASEAN official website, asean.org, 'Member States' page (accessed for this task)
    #192410from apnews.com
    #163710from newyork-un.mfa.gov.sg
    #19710ASEAN Secretariat official website, asean.org — 'Member States' page, listing the ten ASEAN member states as of early 2025 (Timor-Leste's admission as the 11th member on 26 October 2025 postdates the 1 January 2025 reference date).
    #45110from asean.org
    #30910from asean.org
    #70910from asean.org
    #151410from en.wikipedia.org
    #29310Britannica, "Association of Southeast Asian Nations (ASEAN)" (britannica.com/topic/ASEAN)
    #140110from asean.org
    #177110from asean.org
    #79810from asean.org
    #146410ASEAN Secretariat, asean.org, 'Member States' page (accessed 2026-09-25); corroborated by news coverage of Timor-Leste's ASEAN accession being completed on 26 October 2025, confirming ASEAN had 10 members as of 1 January 2025.
    #21110from asean.org
    #129910from asean.org
    #72110from asean.org
    #111010from asean.org
    #131310from asean.org
    #78310from asean.org
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